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超高效液相色谱-串联质谱法同时检测地龙药材中4种黄曲霉毒素含量及阳性结果确证

分析测试经验介绍 (104 ~ 109)超高效液相色谱-串联质谱法同时检测地龙药材中4种黄曲霉毒素含量及阳性结果确证郭　晶1，张　进1，李文君1，李正刚2（1. 通化市食品药品检验所，吉林通化　134000；2. 四平市食品药品检验所，吉林四平　136000）摘要：建立超高效液相色谱-串联质谱法同时测定地龙药材中黄曲霉毒素B 1、B 2、G 1、G 2的含量，并对阳性结果进行确证. 样品经70%甲醇提取、免疫亲和柱净化、超高效液相色谱柱分离、三重四极杆质谱检测，并采用离子峰度比进行阳性结果确证. 结果表明，4种黄曲霉毒素的线性关系良好（r >0.999 5），回收率在91.2%~95.6%范围内.黄曲霉毒素B 1、B 2、G 1、G 2的检出限分别为0.10、0.038、0.11、0.038 µg/kg. 方法专属性好，灵敏度高，准确性好，可以进行最终阳性检出的判定. 15批地龙药材中6批黄曲霉毒素确证阳性检出, 证明地龙药材较易被黄曲霉毒素污染.关键词：地龙；超高效液相色谱-串联质谱；黄曲霉毒素；阳性结果确证中图分类号：O657. 63 文献标志码：B 文章编号：1006-3757（2024）02-0104-06DOI ：10.16495/j.1006-3757.2024.02.005Simultaneous Determination of Four Aflatoxins in Pheretima by Ultra Performance Liquid Chromatography Tandem Mass Spectrometry andConfirmation of Positive ResultsGUO Jing 1， ZHANG Jin 1， LI Wenjun 1， LI Zhenggang2（1. Tonghua Institute for Food and Drug Control , Tonghua 134000, Jilin China ；2. Siping Institute for Food andDrug Control , Siping 136000, Jilin China ）Abstract ：A method for simultaneous determination of aflatoxins B 1, B 2, G 1, and G 2 in pheretima was been established by ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS), and the positive results was confirmed. The samples were extracted by 70% methanol, purified by a immunoaffinity columns, separated by UPLC-MS/MS, detected by triple quadrupole mass spectrometry, and confirmed by ion peak ratio. The results showed that the linear relationship of the four aflatoxins were good (r >0.999 5), and the recoveries ranged from 91.2% to 95.6%. The limits of detection for aflatoxin B 1, B 2, G 1, and G 2 were 0.10, 0.038, 0.11, 0.038 µg/kg, respectively. The method has a good specificity, high sensitivity, good accuracy, and can be used to determine the final positive detection. Aflatoxin were positively detected in 6 out of 15 batches of pheretima , which proved that the Pheretima were more susceptible to contamination by aflatoxins.Key words ：Pheretima ；UPLC-MS/MS ；aflatoxin ；confirmation of positive results收稿日期：2024−01−10；　修订日期：2024−03−05.基金项目：吉林省中药材标准及中药饮片炮制规范（项目编号：JLPZGF-2020-052）作者简介：郭晶（1979−），女，副主任药师，研究方向为药品质量标准通信作者：李正刚（1982−），男，硕士，医药工程师，研究方向为中药质量标准，E-mail ：*****************.第 30 卷第 2 期分析测试技术与仪器Volume 30 Number 22024年3月ANALYSIS AND TESTING TECHNOLOGY AND INSTRUMENTS Mar. 2024黄曲霉毒素（aflatoxins, AF）是一种毒性极强的剧毒物质，被各个国家的癌症研究机构列为Ⅰ类致癌物. 黄曲霉毒素主要是由黄曲霉、寄生曲霉产生的次生代谢产物，是一组化学结构类似的化合物[1-2]，主要包括AFB1、AFB2、AFG1、AFG2，多存在于土壤、动植物、各种坚果中[3]，在湿热环境下出现黄曲霉毒素污染的概率最高. 黄曲霉毒素的危害性在于对人及动物肝脏组织的慢性毒性作用，长期积累可导致肝癌甚至死亡[4-5]. 各国药典均对黄曲霉毒素在中药材或中草药中的限量作了规定，如《欧洲药典》规定AFB1、AFB2、AFG1、AFG2总量在中草药中的限量不得高于4 µg/kg，《美国药典》规定AFB1、AFB2、AFG1、AFG2总量在中草药中的限量不得高于20µg/kg，《中华人民共和国药典》规定其总量在中药材中的限量不得高于10 µg/kg[6].地龙药材标准收载在《中华人民共和国药典》2020版一部[7]. 采收时需要及时剖开腹部，除去内脏和泥沙. 由于地龙生长在土壤环境中，故其被AF污染的风险较大. 目前AF测定的方法主要有液相色谱-柱后碘衍生化法或光化学衍生化法-荧光检测器以及酶联免疫法，但以上方法均存在假阳性的误判可能性，当超出标准限值时均需要采用质谱检测器进行阳性确证[8]. 本研究采用超高效液相色谱-串联质谱法（UPLC-MS/MS）同时测定不同产地多批次地龙药材中AFB1、AFB2、AFG1、AFG2的含量，并对阳性结果进行确证，从而准确的判定检出情况，为地龙药材中AF污染情况提供参考.1　试验部分1.1　仪器和试剂BT125D型电子天平（北京赛多利斯仪器天平有限公司），TDL-5-A型离心机（上海安亭科学仪器厂），AB SCIEX QTRAP® 5500型超高效液相色谱-三重四极杆质谱（美国AB SCIEX公司）. 超高压液相色谱柱（岛津科技有限公司），免疫亲和柱（青岛普瑞邦生物工程有限公司，规格：3 mL，批号：2J1J24-4）.AF混合对照品溶液：AFB1、AFB2、AFG1、AFG2标示质量浓度分别为1.04、0.38、1.08、0.38µg/mL，批号：610001-202006，来源于中国食品药品检定研究院. 氯化钠和醋酸铵（国药集团化学试剂有限公司，分析纯），甲醇和乙腈（Flsher Scientific，色谱纯），纯化水为自制.本次收集到不同产地和批次的地龙药材共15批，基本信息如表1所列.表 1 地龙药材样品基本信息Table 1　Basic informations of Pheretima samples药材编号样品名称产地DL1广地龙海南文昌DL2广地龙广东肇庆DL3广地龙广东韶关DL4广地龙广东韶关DL5广地龙广西玉林DL6广地龙广西北海DL7沪地龙湖北襄阳DL8沪地龙河南濮阳DL9沪地龙河南安阳DL10沪地龙浙江嘉兴DL11沪地龙河南焦作DL12沪地龙浙江金华DL13沪地龙江西赣州DL14沪地龙江西九江DL15沪地龙江西宜春1.2　仪器工作条件1.2.1　色谱条件色谱柱：Shim-pack XR-ODS，3.0 mm×75 mm （1.8 µm）；以10 mmol/L醋酸铵溶液为流动相A，甲醇为流动相B；柱温：25 ℃；流速：0.3 mL/min. 按表2中的程序进行梯度洗脱.表 2 梯度洗脱程序Table 2　Gradient elution procedure时间/min流动相A/%流动相B/%0~4.565~1535~854.5~615~085~1006~6.50~65100~356.5~1065351.2.2　质谱条件离子源：电喷雾离子源（ESI源）；监测模式：正离子扫描下的多反应监测模式（MRM）；喷雾压强：0.21 MPa；干燥气流速：8 L/min；干燥气温度：550 ℃；毛细管电压：5 500 V；三重四极杆离子对及相关电压参数设定如表3所列.第 2 期郭晶，等：超高效液相色谱-串联质谱法同时检测地龙药材中4种黄曲霉毒素含量及阳性结果确证1051.3　标准曲线绘制分别精密量取AF混合对照品溶液100、50、25µL于10 mL容量瓶中，用甲醇稀释至刻度，摇匀，即得标准曲线溶液1、2、3. 分别精密量取1 mL标准曲线溶液2、0.1 mL标准曲线溶液1于10 mL容量瓶中，用甲醇稀释至刻度，摇匀，即得标准曲线溶液4、5. 精密量取1 mL标准曲线溶液4于10 mL 容量瓶中，用甲醇稀释至刻度，摇匀，即得标准曲线溶液6.1.4　供试品溶液制备取供试品粉末约15 g（过四号筛网），精密称定，置于均质瓶中，加入氯化钠3 g、70%甲醇溶液75 mL，12 000 r/min高速搅拌2 min，4 500 r/min离心5 min，取上清液15.0 mL，置于50 mL量瓶中，用水稀释至刻度，摇匀，4 500 r/min离心10 min，取续滤液20.0 mL. 通过免疫亲合柱，流速3 mL/min，用20 mL水洗脱，洗脱液弃去，使空气进入免疫亲合柱，将水挤出，再用适量甲醇洗脱，收集洗脱液，置于2 mL量瓶中，加甲醇稀释至刻度，摇匀，用微孔滤膜（0.22 µm）滤过，取续滤液，即得.2　结果与讨论2.1　免疫亲和柱技术和质谱测定法的优势免疫亲和柱技术是利用抗原、抗体之间高度特异性结合对目标物进行净化富集的一种实验技术，预置在柱体内的特异性抗体选择性结合样本中的待测物，杂质不被结合流出柱外，柱上结合的目标物再被洗脱液洗脱，从而实现目标物的高效净化和浓缩[9].质谱法是使待测化合物产生气态离子，再按质荷比（m/z）将离子分离、检测的分析方法，检测限可达10−15~10−12 mol数量级. 相比较液相色谱法，测试样品需要的量较少，其检测灵敏度也大幅度提高，且其较好的专属性可以作为液相色谱检出情况的进一步确证，大大降低误判阳性检出的情况[10-13]. 2.2　线性范围和检出限分别精密吸取1.3项下系列混合对照品溶液5µL，注入液相色谱仪，测定峰面积，以进样质量浓度（ng/mL）为横坐标，峰面积为纵坐标，绘制标准曲线.结果如表4所列，4种黄曲霉毒素的线性关系良好（r>0.999 5）.取不含AF的样品15 g，加入0.15 mL标准曲线溶液1，余下操作同1.4项下供试品溶液制备，1.2项下仪器工作条件测定，以信噪比（S/N）为3作为4种黄曲霉毒素的检出限（limit of detection，LOD），结果如表4所列，AFB1、AFB2、AFG1、AFG2的LOD分别为0.10、0.038、0.11、0.038 µg/kg，表明方法灵敏度较高.表 4 回归方程、线性范围和检出限Table 4　Regression equations, linear ranges and limits of detection组分名称回归方程r线性范围/（ng/mL）LOD/（µg/kg）S/N AFB1y=33 600x –1 3600.999 90.104～10.4000.10 4.5AFB2y=30 900x – 4 8800.999 80.038～3.8000.038 3.1AFG1y=26 150x – 6 3400.999 80.108～10.8000.11 4.2AFG2y=21 200x + 2 9200.999 80.038～3.8000.038 3.32.3　精密度考察取5 µL 1.3项下标准曲线溶液1，在1.2项下仪器条件及测定方法下分别连续进样6次，测定各组分的色谱峰面积. 测试结果：AFB1、AFB2、AFG1、表 3 质谱条件Table 3　Conditions of mass spectrometer序号组分名称母离子/（m/z）子离子/（m/z）碎裂电压/V碰撞能量/eV1AFB1313.1285.1*16034241.0207512AFB2315.1287.1*18937259.1200393AFG1329.1243.1*16338311.1180314AFG2331.1313.1*18535245.118842注：*定量离子对106分析测试技术与仪器第 30 卷AFG2色谱峰面积相对标准偏差（RSD)分别为1.3%、2.2%、1.8%和2.2%，表明仪器的精密度良好.2.4　稳定性试验取1.3项下标准曲线溶液1，分别于0、4、８、16、18、24 h 按1.2项下仪器条件进样5 µL，记录所测各组分峰面积. 测试结果：AFB1、AFB2、AFG1、AFG2色谱峰面积RSD分别为2.6%、2.2%、2.5%和2.3%，结果表明在24 h内测定结果稳定.2.5　重复性和回收率试验由于15批次地龙药材中仅部分检出AFB1、AFB2，故在加标回收试验中进行方法的重复性考察.称取不含AF的地龙药材（编号：DL1）粉末约15 g，各6份，分别精密加入AF混合对照品溶液75 µL，其余操作同2.1.2项下供试品溶液制备，按2.2项下条件分别测定各组分的色谱峰面积，结果如表5所列. 由表5可见，AFB1、AFB2、AFG1、AFG2的平均回收率分别为95.6%、93.4%、93.2%、91.2%，加标测定值的RSD分别为1.9%、2.0%、1.7%和2.6%，表明该方法的回收率满足要求，方法的重复性良好.2.6　样品测定取15批次地龙药材，按照1.4项下方法制备供试品溶液，1.2项下仪器条件进行测定，结果如表6所列，结果表明在6批地龙样品中检测出AFB1和AFB2，质谱总离子流图如图1所示.表 6 样品测定结果Table 6　Determination results of samples/(µg/kg)样品编号AFB1质量分数AFB2质量分数AFG1质量分数AFG2质量分数总质量分数DL1/////DL2/////DL3/////DL4 6.80.53//7.33 DL5/////DL6/////DL77.80.35//8.15 DL8 6.50.31// 6.81 DL9 4.30.24// 4.54 DL10/////DL11/////DL12/////DL13 3.10.43// 3.53 DL14 2.50.31// 2.81 DL15/////注：“/”：未检出2.7　阳性结果确证中药组成成分相较于西药组成成分复杂多样，三重四极杆质谱是以母离子及子离子组成的离子对进行检测，由于样品基质成分的复杂性，单个离子对出现干扰的情况在试验过程中偶有发生. 然而一个化合物在质谱检测器的离子源中被固定碰撞电压击碎产生的多个碎片离子之间具有相对固定的比例，故采用离子对峰面积的比值进行比较更具有专属性，UPLC-MS/MS法通常采用离子峰度比对结果进一步确证阳性检出，即：如果样品检出色谱峰的保留时间与对照品一致，并且在扣除背景后的表 5 方法的重复性和回收率试验结果Table 5　Experimental results of repeatability andrecovery of method添加质量分数加入质量/ng实测质量/ng回收率/%平均回收率/%RSD/%AFB1 (5 µg/kg)78.0074.2195.1495.6 1.9 78.0073.1193.7378.0075.5396.8378.0076.5298.1078.0072.9993.5878.0075.2396.45AFB2 (2 µg/kg)28.5026.1291.6593.4 2.0 28.5025.2390.7728.5026.7893.9628.5027.0194.7728.5027.3295.8628.5026.5593.16AFG1 (5 µg/kg)81.0077.4495.6093.2 1.7 81.0075.2692.9181.0075.3693.0481.0074.8292.3781.0076.3594.2681.0073.7891.09AFG2 (2 µg/kg)28.5025.1591.0591.2 2.6 28.5026.2292.0028.5025.4789.3728.5025.1188.1128.5027.0194.7728.5026.2892.21第 2 期郭晶，等：超高效液相色谱-串联质谱法同时检测地龙药材中4种黄曲霉毒素含量及阳性结果确证107质谱图中，所选择的监测离子对均出现，而且所选择的监测离子对峰面积比与对照品的监测离子对峰面积比一致，则可判定样品中存在该真菌毒素.经计算本试验检出的6批阳性样品的离子峰度比AFB 1分别为75.3%、75.2%、75.1%、75.3%、75.2%、75.1%，相对平均偏差均小于0.2%. AFB 2分别为85.0%、85.1%、85.1%、85.2%、85.3%、85.0%，相对平均偏差均小于0.2%. 均在允许偏差±20%内，确证样品阳性检出.3　结论由多批次样品检验情况可以初步得出，地龙药材中黄曲霉毒素的污染主要为黄曲霉毒素B 1和B 2.地龙药材在产地初加工过程中需去除泥沙，而泥沙为黄曲霉毒素污染的重要来源，如果泥沙去除不净、保存不当、遇湿热环境，则黄曲霉毒素含量容易超标[14-17]. 因此地龙药材的黄曲霉毒素监测检验非常必要[18-21]. 试验结果表明，UPLC-MS/MS 法操作简便、专属性好、灵敏度高、重复性好，能够对地龙药材的阳性结果作出准确判定，故将在中药材的黄曲霉毒素污染检测中发挥重要作用.参考文献：刘丽娜, 李海亮, 李耀磊, 等. 中药真菌毒素质量控制概况、限量标准制定及有关问题的思考[J ]. 中草药，2023，54（19）：6197-6207. [LIU Lina, LI Hailiang, LI Yaolei, et al. Overview on quality control of mycotox-ins in traditional Chinese medicine, limit requirements and discussion on related issues [J ]. Chinese Tradition-al and Herbal Drugs ，2023，54 （19）：6197-6207.]［ 1 ］沈立, 汤燕, 陈铁柱, 等. 固相萃取液质联用测定川产道地药材黄精、麦冬中10种真菌毒素[J ]. 药物分析杂志，2023，43（8）：1369-1380. [SHEN Li, TANG［ 2 ］Yan, CHEN Tiezhu, et al. Determination of 10 my-cotoxins in Polygonati Rhizoma and Ophiopogonis Radix as a genuine regional drug of Sichuan by solid-phase extraction coupled with LC-MS/MS [J ]. Chinese Journal of Pharmaceutical Analysis ，2023，43 （8）：1369-1380.]徐晓艳, 王宇, 王梦瑶, 等. 中药材中真菌毒素的检测与脱毒研究进展[J ]. 中草药，2024，55（2）：657-669.[XU Xiaoyan, WANG Yu, WANG Mengyao, et al.Research progress on detection and detoxification of mycotoxins in Chinese medicinal materials [J ].Chinese Traditional and Herbal Drugs ，2024，55 （2）：657-669.]［ 3 ］李正刚, 程焱, 王丹彧, 等. 地龙药材中黄曲霉毒素B 1、B 2、G 1、G 2的含量检测[J ]. 化学工程师，2023，37（8）：34-37. [LI Zhenggang, CHENG Yan, WANG Danyu, et al. Detection of aflatoxins B 1、B 2、G 1、G 2 in Pheretima materials [J ]. Chemical Engineer ，2023，37（8）：34-37.]［ 4 ］莫紫梅. 黄曲霉毒素B 1降解产物及其安全性评价研究进展[J/OL ]. 中国油脂, 2023:1-12[2024-02-29].https:///10.19902/ki.zgyz.1003-7969.230329. [MO Zimei. Research progress on degrada-tion products of aflatoxin B 1 and its safety evaluation [J/OL ]. China Oils and Fats, 2023:1-12[2024-02-29]. https:///10.19902/ki.zgyz.1003-7969.230329.]［ 5 ］孙艳杰, 李正刚, 赵磊, 等. 制貂肾中黄曲霉毒素的测定方法研究及暴露风险评估[J ]. 中国药物评价，2023，40（3）：249-252. [SUN Yanjie, LI Zhenggang,ZHAO Lei, et al. Determination method of aflatoxin in processed mustela and risk assessment [J ]. Chinese Journal of Drug Evaluation ，2023，40 （3）：249-252.]［ 6 ］国家药典委员会. 中华人民共和国药典(一部)[S ].北京: 中国医药科技出版社, 2020: 127.［ 7 ］许晓辉, 李晨曦, 吴福祥, 等. QuEChERS-分散固相萃取-液质联用法快速测定地龙中黄曲霉毒素[J ].分析测试技术与仪器，2021，27（1）：18-23. [XU［ 8 ］1×1042×1043×104(a)(b)4×1045×1046×1047×104t /minI n t e n s i t y /c p sI n t e n s i t y /c p st /min1×1042×1043×1044×1045×1046×104AFB 2AFB 1AFG 2AFB 2AFB 1AFG 1图1　样品测定图谱（a ）对照品质谱总离子流图，（b ）样品质谱总离子流图Fig. 1　Total ion flow diagrams of samples108分析测试技术与仪器第 30 卷Xiaohui, LI Chenxi, WU Fuxiang, et al. QuEChERS-dispersed solid phase extraction-ultra performance li-quid chromatography-tandem mass spectrometry for rapid determination of aflatoxin in pheretima [J ]. Ana-lysis and Testing Technology and Instruments ，2021，27 （1）：18-23.]马彧, 李正刚, 程焱, 等. 超声萃取-免疫亲和柱净化-柱后光化学衍生高效液相色谱法同时测定蜂房药材中4种黄曲霉毒素[J ]. 化学分析计量，2023，32（2）：20-23, 56. [MA Yu, LI Zhenggang, CHENG Yan, et al. Simultaneous determination of four aflatox-ins in Nidus Vespae by ultrasonic extraction-immun-oaffinity column purification-post column photochem-ical derivatization HPLC [J ]. Chemical Analysis and Meterage ，2023，32 （2）：20-23, 56.]［ 9 ］龚敏, 陈明亮, 金鹏, 等. QuEChERS 结合UPLC-MS/MS 测定水产品中4种黄曲霉毒素及其裂解规律研究[J ]. 热带农业科学，2023，43（10）：35-40.[GONG Min, CHEN Mingliang, JIN Peng, et al. De-termination of four aflatoxins in aquatic product by QuEChERS combine UPLC-MS/MS method and study on fragmentation pathway [J ]. Chinese Journal of Tropical Agriculture ，2023，43 （10）：35-40.]［ 10 ］袁正宁, 李梁子涵, 王艳敏, 等. 黄曲霉毒素对肝脏和脾脏的毒理作用研究[J ]. 中国畜禽种业，2023，19（4）：91-95. [YUAN Zhengning, LI Liangzihan,WANG Yanmin, et al. Toxicological effects of aflatoxin on liver and spleen [J ]. The Chinese Live-stock and Poultry Breeding ，2023，19 （4）：91-95.]［ 11 ］何洁, 余婷婷, 梁松, 等. 高通量高效快速净化方法结合UPLC-MS/MS 测定粮食中黄曲霉毒素[J/OL ]. 中国测试, 2023:1-12 [2024-02-29]. https:///kcms/detail/51.1714.TB.20230421.1514.008.html.[HE Jie, YU Tingting, LIANG Song, et al. Determina-tion of aflatoxins in grains using the high-throughput high efficient flow-through clean-up method and ultra-high performance liquid chromatography tandem mass spectrometry [J/OL ]. China Measurement & Test,2023:1-12 [2024-02-29]. https:///kcms/de-tail/51.1714.TB.20230421.1514.008.html.]［ 12 ］李正刚, 谢秋红, 邵大志, 等. 高效液相色谱-荧光检测法同时测定人参归脾丸中4种黄曲霉毒素[J ]. 中国卫生工程学, 2022, 21(5):714-716. [LI Zhenggang,XIE Qiuhong, SHAO Dazhi, et al. Simultaneous de-termination of content of four Aflatoxins Ginseng spleen-invigorating bolus by HPLC-FLD [J ]. Chinese Journal of Public Health Engineering, 2022, 21(5):714-716.]［ 13 ］陈莉. 超高效液相色谱串联三重四极杆质谱法同时测定舒眠胶囊(片)中4种黄曲霉毒素含量[J ]. 中国药业，2022，31（22）：77-80. [CHEN Li. Simultaneous［ 14 ］determination of four aflatoxins in Shumian capsules(tablets) by UPLC-QQQ/MS [J ]. China Phar-maceuticals ，2022，31 （22）：77-80.]夏仕青, 李晓慧, 吴桃丽. 超高效液相色谱-串联质谱法测定辣椒粉中4种黄曲霉毒素的含量[J ]. 微量元素与健康研究，2023，40（1）：57-60. [XIA Shiqing, LI Xiaohui, WU Taoli. Determination of four aflatoxins in Chili Powder by UPLC-MS/MS [J ]. Studies of Trace Elements and Health ，2023，40 （1）：57-60.]［ 15 ］淦露. 黄曲霉毒素检测技术研究进展[J ]. 现代食品，2022，28（15）：114-117. [GAN Lu. Research progress of aflatoxin detection technology [J ]. Modern Food ，2022，28 （15）：114-117.]［ 16 ］杨昊, 公丕学, 王骏, 等. 基于石墨烯净化的超高效液相色谱串联质谱快速测定乳制品中黄曲霉毒素[J ].中国食品卫生杂志，2023，35（3）：396-402. [YANG Hao, GONG Pixue, WANG Jun, et al. Fast determina-tion of aflatoxin in dairy products by ultra-high per-formance liquid chromatography-tandem mass spec-trometry based on purification of graphene [J ].Chinese Journal of Food Hygiene ，2023，35 （3）：396-402.]［ 17 ］赵飞. QuEChERS 结合超高效液相色谱-三重四极杆质谱法测定坚果中黄曲霉毒素[J ]. 当代化工，2022，51（3）：752-756. [ZHAO Fei. Determination of aflatoxins in nuts by QuEChERS coupled with ultra-li-quid chromatography-mass spectrometry [J ]. Contem-porary Chemical Industry ，2022，51 （3）：752-756.]［ 18 ］谭丽盈. 超高效液相色谱-串联质谱法同时测定醋延胡索药材中4种黄曲霉毒素[J ]. 化学分析计量，2021，30（10）：27-32. [TAN Liying. Simultaneous de-termination of four kinds of aflatoxins in vinegar cory-dalis by UPLC-MS/MS [J ]. Chemical Analysis and Meterage ，2021，30 （10）：27-32.]［ 19 ］周颖, 祝清岚, 马临科, 等. 免疫亲和柱净化-柱后光化学衍生-高效液相色谱法检测蜚蠊中的黄曲霉毒素[J ]. 中国药物评价，2020，37（5）：358-361.[ZHOU Ying, ZHU Qinglan, MA Linke, et al. De-termination of aflatoxins in periplaneta Americana by immunoaffinity column and high performance liquid chromatography coupled with post-column photo-chemical derivatization [J ]. Chinese Journal of Drug Evaluation ，2020，37 （5）：358-361.]［ 20 ］刘宁, 王萌萌, 金红宇, 等. 高效液相色谱-柱后光化学衍生法测定参苓白术散中黄曲霉毒素G 2、G 1、B 2、B 1[J ]. 中国药事，2012，26（5）：442-445. [LIU Ning,WANG Mengmeng, JIN Hongyu, et al. Determination of aflatoxin G 2, G 1, B 2, B 1 in Shenling Baizhu Powder by HPLC with post column photochemical derivatiza-tion [J ]. Chinese Pharmaceutical Affairs ，2012，26 （5）：442-445.]［ 21 ］第 2 期郭晶，等：超高效液相色谱-串联质谱法同时检测地龙药材中4种黄曲霉毒素含量及阳性结果确证109。

Trans IT-CRISPR Transfection Reagent 产品说明书

Trans IT-CRISPR® Transfection ReagentCatalog Number T1706Product DescriptionTrans IT-CRISPR is a non-liposomal polymeric transfection reagent for efficient delivery of CRISPR/Cas components. Trans IT-CRISPR allows for simple, fast and efficient delivery of CRISPR DNA, guide RNA and RNP (Cas9-gRNA ribonucleoprotein) complexes to various cell types, including primary cells. Also,Trans IT-CRISPR effectively delivers siRNA duplexes into various cell lines.*Simple protocols for easy optimization in delivering CRISPR/Cas components to cells in DNA, guide RNA and RNP formats.*Efficient delivery to various cell lines, including common cell types and difficult to transfect cell types.Storage/StabilityTrans IT-CRISPR Transfection Reagent is shipped on wet ice. Upon receipt, please store at –20°C. With proper handling and storage, this product remains stable for one year from the date of purchase.Precautions and DisclaimerThis product is for R&D use only, not for drug, household, or other uses. Please consult the Material Safety Data Sheet for information regarding hazards and safe handling practices. SIGMA-ALDRICH CRISPR PLASMID DNA TRANSFECTIONTips for Plasmid DNA TransfectionOptimize reaction conditions for different cell types to ensure successful transfections. The suggestions provided in this protocol yield high efficiency plasmid DNA transfection using the Trans IT-CRISPR Transfection Reagent. Table 1 lists recommended starting conditions depending on culture vessel size. • Cell density at transfection:The recommended cell density for most cell types is ≥ 80% confluence. Determine the optimal cell density for each cell type in order to maximize transfection efficiency. Split cells 18–24 hours before transfection to ensure that the cells are actively dividing and reach the appropriate cell density at the time of transfection.• DNA purity:Use highly purified, sterile, and contaminant-free DNA for transfection. Plasmid DNA preparations that are endotoxin-free and have A260/280 absorbance ratio of 1.8–2.0 are desirable. DNA prepared using mini-prep kits is not recommended as it might contain high levels of endotoxin.• Ratio of Trans IT-CRISPR to DNA: Determine the best Trans IT-CRISPR: DNA ratio for each cell type. Start with 3 µl of Trans IT-CRISPR per 1 µg of DNA. Vary the amount of Trans IT-CRISPR from 2–6 µl per 1 µg DNA to find the optimal ratio. Table 1 provides recommended starting conditions.• Complex formation conditions: Prepare Trans IT-CRISPR: DNA complexes in serum-free growth medium. Recommendation: Opti-MEM TM I Reduced-Serum Medium, without antibiotics. • Cell culture conditions:Culture cells in the appropriate medium, with or without serum. There is no need to perform a medium change to remove the transfection complexes.• Presence of antibiotics:Transfection complexes can be added directly to cells grown in complete culture medium containing serum and low levels of antibiotics (0.1–1X final concentration ofpenicillin/streptomycin mixture). Do not include antibiotics during the complex formation step.• Post-transfection incubation time : Determine the best incubation time post-transfection for each cell type. The optimalincubation time is generally 24–72 hours, but will vary depending on the goal of the experiment, nature of the plasmid used, and cell doubling time.Sigma-Aldrich CRISPR Plasmid DNATransfection Protocol per Well of a 6-Well Plate in Human Osteosarcoma (U2OS) Cells and a Human Immortalized Liver Cell Line (HepaRG)The following procedure describes how to perform plasmid DNA transfections using the Trans IT-CRISPR transfection reagent in 6-well plates. The surface areas of other culturevessels are different and transfections must be scaled accordingly (see Table 1 as an example).Plate Cells∙ Approximately 18-24 hours beforetransfection, plate cells in 2.5 mlcomplete growth medium per well in a 6-well plate. For most cell types, cultures should be ≥ 80% confluent at the time of transfection.o For adherent U2OS andHepaRG cells : Plate at a density of 2.5 x 105 cells/ml.o For other adherent cells : Platecells at a density of 0.8–3.0 × 105 cells/ml.∙ Incubate cell cultures overnight.Prepare Trans IT-CRISPR: DNA CRISPRcomplexes (Immediately before transfection)∙ Warm Trans IT-CRISPR to roomtemperature and vortex gently before using.∙ Place 250 µl of Opti-MEM ® I Reduced –Serum Medium in a sterile tube.∙ Add between 2 – 4 µg of Sigma-AldrichCRISPR plasmid DNA.Table 1. Recommended starting conditions for DNA transfections with Trans IT-CRISPR Transfection Reagent DNACulture vessel 96-well48-well 24-well12-well6-well10-cm dishT75 flaskSurface area0.35 cm 2 1 cm 2 1.9 cm 2 3.8 cm 2 9.6 cm 2 59 cm 2 75 cm 2 Complete growth medium92 µl 263 µl 0.5 ml 1 ml 2.5 ml 15.5 ml 19.7 ml Serum-free medium 9 µl 26 µl 50 µl 100 µl 250 µl 1.5 ml 1.9 ml DNA (1 µg/µl stock)0.1 µl0.26 µl0.5 µl1 µl2.5 µl15 µl19 µlFor the all-in-one Sigma-Aldrich CRISPR FP vectors, add 4 µg of plasmid. For the dual vector Sigma-Aldrich CRISPR plasmids, add 2 µg of U6-gRNA only plasmid and 2 µg of CMV-Cas9-FP only plasmid.∙ Pipet gently to mix completely.∙ Add 3-6 µl Trans IT-CRISPR (1.5 µl ofTrans IT-CRISPR per 1 µg of CRISPR plasmid DNA) to the diluted DNA mixture.∙ Pipet gently to mix completely.∙ Incubate at room temperature for 15-30minutes to allow sufficient time for complexes to form.Distribute the complexes to cells in complete growth medium∙ Add the Trans IT-CRISPR: DNAcomplexes drop-wise to different areas of the wells.∙ Gently rock the culture vessel back andforth and from side-to–side to evenly distribute the Trans IT-CRISPR: DNA complexes.∙ Incubate for 48 hours. It is notnecessary to replace the complete growth medium with fresh medium. ∙ Harvest cells and assay as required.Delivery of purified recombinant Cas9 protein and guide RNA Ribonucleoprotein Complexes (RNPsRecent papers have shown the efficacy of delivering the CRISPR components by combining purified Cas9 protein-guide RNA ribonucleoprotein (RNP) complexes. Trans IT-CRISPR transfection reagent has been tested in U2OS and HepaRG cells for efficient delivery of Cas9-gRNA RNP complexes to induce efficient site-specific mutations at targeted genomic regions. Protocols for both IVT gRNA and synthetic crRNA & tracrRNA are listed below. Prepare Trans IT-CRISPR: In Vitro Transcribed gRNA/Cas9 Protein CRISPR complexes (Immediately before transfection) Use between a 1.2 and 5 molar excess of in vitro transcribed RNA to Cas9 protein.∙Pipet between 1.2 and 5 µg of in vitro transcribed RNA to a sterile tube on ice.∙Add between 5 and 10 µg of Cas9protein to the in vitro transcribed RNA,mix gently and incubate on ice for 30minutes.∙ Warm Trans IT-CRISPR to roomtemperature and vortex gently beforeusing.∙Place 250 µl of Opti-MEM TM I Reduced –Serum Medium to the Cas9Ribonucleoprotein (RNP) sterile tube.∙Add between 5 - 6.25 µl of Trans IT-CRISPR to the diluted Cas9 RNP.∙Pipet gently to mix completely.∙Incubate at room temperature for 15 –30 minutes to allow sufficient time forcomplexes to form.Prepare Trans IT-CRISPR: SygRNA™Synthetic crRNA & tracrRNA /Cas9Protein CRISPR complexes (Immediatelybefore transfection)Use a between a 1 and 5 molar excess of SygRNA™ synthetic crRNA & tracrRNA to Cas9 protein.∙Pipet between 30 and 300 pmol each of synthetic crRNA and tracrRNA into asterile tube on ice (typically between 1.5and 15 µl of 20 µM synthetic RNA stocksolutions).∙Add between 5 and 10 µg of Cas9protein (30 to 60 pmol) to the syntheticcrRNA and tracrRNA, mix gently andincubate on ice for 30 minutes.∙ Warm Trans IT-CRISPR to roomtemperature and vortex gently beforeusing.∙Place 250 µl of Opti-MEM I Reduced –Serum Medium to the Cas9 RNP steriletube.∙Add between 5 - 6.25 µl of Trans IT-CRISPR to the diluted Cas9 RNP.∙Pipet gently to mix completely.∙Incubate at room temperature for 15 –30 minutes to allow sufficient time forcomplexes to form.Distribute the complexes to cells in complete growth medium∙ Add the Trans IT-CRISPR: RNPcomplexes drop – wise to different areasof the wells.∙Gently rock the culture vessel back-and- forth, and from side-to–side to evenlydistribute the Trans IT-CRISPR: RNPcomplexes.∙Incubate for 24-72 hours. It is notnecessary to replace the completegrowth medium with fresh medium.∙Harvest cells and assay as required.The Trans IT-CRISPR transfection reagent can also be used to deliver siRNA duplexes for gene silencing experiments.Increase knockdown efficiency by using Trans IT-CRISPR transfection reagent.MISSION® siRNA TRANSFECTIONImportant Tips for Optimal siRNA TransfectionOptimize reaction conditions for each cell type to ensure successful transfections. The suggestions below yield high efficiency knockdown of target gene expression using the Trans IT-CRISPR Transfection Reagent. For siRNA, please refer to Table 2 for recommended starting conditions depending on culture vessel size.• Cell density: The recommended cell density for most cell types is ≥ 80% confluence. Determine the optimal cell density for each cell type in order to maximize transfection efficiency. Plate the cells 18–24 hours before transfection to ensure that the cells are actively dividing and reach the appropriate cell density at the time of transfection.• Volume of Trans IT-CRISPR : Each cell type responds differently to a given transfection reagent.As a starting point, test 7.5 µl of Trans IT-CRISPR per well of a 6-well plate. For further optimization, test three amounts of Trans IT-CRISPR, e.g. 5 µl, 7.5 µl, and 10 µl per well of a 6-well plate.• siRNA dilution : Dilute siRNA using the manufacturer’s recommended buffer.Alternatively, use 100 mM NaCl in 50 mM Tris, pH 7.5, made with RNase-free water. Do not use water alone to dilute siRNA, as this may result in denaturation of the siRNA at low concentrations.• siRNA concentration : siRNA used fortransfection should be highly pure, sterile, and the correct sequence. Depending on the type of experiment, the optimal final siRNAconcentration for transfection is typically within the range of 10–50 nM. As a starting point, we recommend 25 nM siRNA (final concentration in well).• Proper controls : We recommendtransfecting a non-targeting siRNA (Sigma-Aldrich MISSION® siRNA Universal Negative Controls SIC001 or 6-FAM-labeled SIC007) to verify that the gene expression knockdown or phenotype is attributed to the gene-specificsiRNA. Additionally, independent transfection of three to four siRNA duplexes targeting aparticular gene minimizes the possibility that the observed phenotype is due to off-target effects.• Complex formation conditions : Prepare Trans IT-CRISPR: siRNA complexes in serum-free growth medium. Recommended: Opti-MEM TM I Reduced-Serum Medium.• Cell culture conditions : Culture cells in the appropriate medium, with or without serum There is no need to perform a medium change to remove the transfection complexes. Trans IT-CRISPR yields improved transfectionefficiencies when transfections are performed in complete growth medium (instead of serum-free medium) without a post-transfection medium change.• Presence of antibiotics : Antibiotics will inhibit transfection complex formation andtherefore should be excluded from the complex formation step. Transfection complexes can be added to cells grown in complete culturemedium containing low levels of antibiotics (0.1–1X final concentration of penicillin/streptomycin mixture).• Transfection incubation time : The optimal incubation time can be determined empirically by testing a range from 24–72 hours post-transfection, depending on the stability of the target mRNA and its encoded protein. When quantifying knockdown efficiencies at the mRNA level, assaying at 24 hours post-transfection is often sufficient. When quantifying knockdown efficiencies at the protein level, longer post-transfection incubation may be necessary particularly if the target protein has a long cellular half-life.Table 2. Recommended starting conditions for siRNA transfections with Trans IT-CRISPR Transfection Reagent siRNA Culture vessel 96-well48-well24-well12-well6-well 10-cm dish T75 flask Surface area0.35 cm 2 1 cm 2 1.9 cm 2 3.8 cm 2 9.6 cm 2 59 cm 2 75 cm 2 Complete growth medium92 µl 263 µl 0.5 ml 1 ml 2.5 ml 15.5 ml 19.7 ml Serum-free medium 9 µl 26 µl 50 µl 100 µl 250 µl 1.5 ml 1.9 ml MISSION® siRNA (10 µM stock) 25 nM final0.25 µl 0.7 µl 1.4 µl 2.8 µl 6.8 µl 42.5 µl 54 µl TransIT-CRISPR0.3 µl0.78 µl1.5 µl3 µl7.5 µl45 µl57 µlRelated Products∙CRISPR Custom Plasmid and RNA, Catalog Number CRISPR/crisprs∙ CRISPR CMV-CAS9-2A-GFP Plasmid, Catalog Number CAS9GFPP∙ CRISPR CMV-CAS9D10A-2A-GFP Plasmid, Catalog Number CAS9D10AGFPP∙CRISPR Universal Negative Control 1, Catalog Number CRISPR06∙ Custom SygRNA TM, Catalog NumberVC40003∙SygRNA™ Cas9 Synthetic tracrRNA,Catalog Number TRACRRNA05N-5NMOL∙Cas9-NLS from Streptococcus pyogenes, Catalog Number CAS9PROT∙Enhanced specificity Cas9-NLS fromStreptococcus pyogenes, Catalog NumberESPCAS9PRO∙Cas9 Recombinant protein fromStreptococcus pyogenes, Catalog NumberTGEN-CP∙Cas9 Nickase Recombinant protein from Streptococcus pyogenes, Catalog NumberTGEN-CNP∙ MISSION® siRNA duplexes, predesigned and custom/siRNA∙ MISSION® siRNA Universal NegativeControl #1, Catalog Number SIC001∙MISSION® siRNA Fluorescent Universal Negative Control #1, 6-FAM, CatalogNumber SIC007∙MISSION TRC 3 – LentiORF Collection /lentiorf Opti-MEM is a registered trademark of Life Technologies, Inc.SygRNA is a trademark and MISSION is a registered trademark of Sigma-Aldrich Co. LLC.MIRUS, TransIT and Trans IT-CRISPR are registered trademarks of Mirus Bio LLC.JW,PA,PHC 07/17-2©2017 Sigma-Aldrich Co. LLC. All rights reserved. SIGMA-ALDRICH is a trademark of Sigma-Aldrich Co. LLC, registered in the US and other countries. Purchaser must determine the suitability of the product(s) for their particular use. Additional terms and conditions may apply. Please see product information on the Sigma-Aldrich website at and/or on the reverseside of the invoice or packing slip.。

司美格鲁肽联合达格列净、二甲双胍在肥胖型2_型糖尿病合并非酒精性脂肪肝患者中的疗效分析

DOI：10.16658/ki.1672-4062.2024.01.019司美格鲁肽联合达格列净、二甲双胍在肥胖型2型糖尿病合并非酒精性脂肪肝患者中的疗效分析叶娟，陈冬，邱振汉，吴盛钊安徽省淮南市寿县人民医院内分泌科，安徽寿县232200[摘要]目的研究司美格鲁肽联合达格列净、二甲双胍在肥胖型2型糖尿病（Type 2 Diabetes Mellitus， T2DM）合并非酒精性脂肪肝（Non-alcoholic Fatty Liver， NAFLD）患者中的疗效。

方法选取2021年6月—2023年6月安徽省淮南市寿县人民医院内分泌科收治的80例肥胖型T2DM合并NAFLD患者为研究对象。

根据随机数表法分为对照组和观察组，各40例。

对照组给予二甲双胍联合达格列净治疗，观察组在对照组基础上联合司美格鲁肽治疗。

比较两组治疗12周后的疗效以及药物不良反应发生率。

结果观察组胰岛素抵抗指数、血糖指标、血脂指标、肝功能指标均显著低于对照组，差异有统计学意义（P均<0.05）；观察组体质指数为（28.19±0.92）kg/m2，低于对照组的（30.12±1.47）kg/m2，差异有统计学意义（P<0.05）；两组不良反应发生率比较，差异无统计学意义（P>0.05）。

结论肥胖型T2DM合并NAFLD患者治疗中，相对于单纯使用达格列净、二甲双胍治疗，联合司美格鲁肽在降低血糖、血脂、肝酶，改善胰岛功能方面效果更优，且不良反应无明显增加。

[关键词] 司美格鲁肽；达格列净；二甲双胍；肥胖；2型糖尿病；非酒精性脂肪肝[中图分类号] R587.1 [文献标识码] A [文章编号] 1672-4062（2024）01（a）-0019-04Efficacy of Smaglutide Combined with Dapagliflozin and Metformin in Pa⁃tients with Obese Type 2 Diabetes Mellitus and Nonalcoholic Fatty Liver DiseaseYE Juan, CHEN Dong, QIU Zhenhan, WU ShengzhaoDepartment of Endocrinology, Huainan Shouxian People's Hospital, Shouxian, Anhui Province, 232200 China[Abstract] Objective To study the efficacy of semiglutide combined with dapagliflozin and metformin in patients with obese type 2 diabetes mellitus (T2DM) and non-alcoholic fatty liver disease (NAFLD). Methods A total of 80 obese patients with T2DM combined with NAFLD were selected from the department of endocrinology of Shouxian People's Hospital from June 2021 to June 2023. They were divided into control group and observation group according to ran⁃dom number table method, 40 cases each. The control group received metformin with dagagliflozin, and the observa⁃tion group was treated with semegallutide on the basis of the control group. Comparing the efficacy and the incidence of adverse drug reactions after 12 weeks of treatment. Results The homa-ir insulin resistance index, blood glucose in⁃dex, blood lipid index and liver function index were significantly lower than that of the control group, and the differ⁃ences were statistically significant (all P<0.05). The body mass index in the observation group was (28.19±0.92) kg/m2, which was lower than (30.12±1.47) kg/m2in the control group , and the difference was statistically significant (P< 0.05). The incidence of adverse reactions was not significant (P>0.05). There was no statistically significant difference in the incidence of adverse reactions between the two groups (P>0.05). Conclusion In the treatment of obese T2DM [作者简介]叶娟（1990-），女，硕士，主治医师，研究方向为内分泌科与代谢病。

分子生物学词汇(中英文对照表 )

抗体公司

赛信通（上海）生物试剂有限公司
上海市浦东南路1101号远东大厦514室，200120 info@cst www.cst 2158356288 公司总部: 美国
Established in Beverly, MA in 1999, Cell Signaling Technology (CST) is a privatelyowned company with over 400 employees worldwide. We are dedicated to providing innovative research tools that are used to help define mechanisms underlying cell function and disease. Since its inception, CST has become the world leader in the production of the highest quality activationstate and total protein antibodies utilized to expand knowledge of cell signaling pathways. Our mission is to deliver the world's highest quality research tools that accelerate progress in biological research and personalized medicine. 总引用数为4670，来自于1966篇文章。最常引用的试剂包括： Akt, ERK2, ERK1, p38, Akt1。
AbD Serotec (BioRad)

安捷伦产品目录

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Brilliant III Ultra-Fast SYBR Green QPCR and QRT-PCR Reagents
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Brilliant III Ultra-Fast QPCR and QRT-PCR Reagents
Agilent / STRATAGENE
Agilent website: /genomics
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Table of Content
Table of Contents
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適用於 UNG 去汙染或 bisulphite
sequencing
適用於 TA Cloning
最高敏感性
取代傳統 Taq 的好選擇
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Agilent SureCycler 8800
市場上領先的 cycling 速度和 sample 體積 10 ～ 100 μL 簡易快速可以選擇 96 well 和 384 well 操作盤優秀的溫控設備讓各個 well 都能保持溫度的穩定七吋的高解析度觸控螢幕讓操作上更為簡便可以透過網路遠端操控儀器及監控儀器 Agilent 專業的技術支援可以幫助您應對各種 PCR 的問題

UPLC-Q-TOF-MS

第43 卷第 4 期2024 年4 月Vol.43 No.4511~522分析测试学报FENXI CESHI XUEBAO （Journal of Instrumental Analysis ）UPLC-Q-TOF-MS/MS 法分析鉴定鸡血藤中药复方提取物的化学成分谢灿辉1，贾德政1，胥爱丽2，邬旻珊1，肖观林2，毕晓黎2，张素中3，曹颖男3*（1．广州中医药大学第五临床医学院，广东广州 510405；2．广东省中医药工程技术研究院广东省中医药研究开发重点实验室，广东广州 510095；3．广州新华学院　药学院，广东广州 510520）摘要：应用超高效液相色谱-四极杆-飞行时间串联质谱（UPLC-Q-TOF-MS/MS ）技术定性鉴别鸡血藤中药复方提取物的化学成分。

采用Waters ACQUITY UPLC BEH C 18色谱柱（100 mm×2.1 mm ，1.7 µm ），以0.1%甲酸水溶液-乙腈为流动相进行梯度洗脱，电喷雾离子源正、负离子模式扫描。

通过质谱数据库、化合物裂解规律，并结合相关文献进行鉴别。

共鉴别出82种化合物，以黄酮类、苯丙素类、萜类化合物为主，包括黄酮类22种、苯丙素类24种、萜类25种、酚酸类4种、甾体类6种、氨基酸类1种，各药材组成复方后首次发现的新化学成分有10种。

UPLC-Q-TOF-MS/MS 技术为鉴别鸡血藤中药复方中化学成分提供了简便、快速、准确的方法，鉴定得到的各个化学成分涵盖了组方中各味药材的主要成分，可为该复方的质量标准及药效物质研究提供实验依据和理论基础。

关键词：UPLC-Q-TOF-MS/MS ；鸡血藤中药复方提取物；化学成分；裂解规律中图分类号：O657.63；R282.6文献标识码：A 文章编号：1004-4957（2024）04-0511-12Analysis of Chemical Constituents in Jixueteng Formula Extract byUPLC-Q-TOF-MS/MSXIE Can -hui 1，JIA De -zheng 1，XU Ai -li 2，WU Min -shan 1，XIAO Guan -lin 2，BI Xiao -li 2，ZHANG Su -zhong 3，CAO Ying -nan 3*（1．School of the Fifth Clinical Medicine ，Guangzhou University of Chinese Medicine ，Guangzhou 510405，China ；2．Guangdong Provincial Key Laboratory of Research and Development in Traditional Chinese Medicine ，Guangdong Provincial Engineering Technology Research Institute of T.C.M.，Guangzhou 510095，China ；3．School of Pharmcy of Guangzhou Xinhua University ，Guangzhou 510520，China ）Abstract ：The chemical components of the Jixueteng formula extract were qualitatively identified us⁃ing ultra -high performance liquid chromatography-quadrupole time -of -flight tandem mass spectrome⁃try （UPLC-Q-TOF-MS/MS ） technology. A Waters ACQUITY UPLC BEH C 18 chromatographic col⁃umn （100 mm×2.1 mm ，1.7 µm ） was employed ，with a mobile phase consisting of 0.1% formic ac⁃id solution-acetonitrile using a gradient elution. The flow rate was set at 0.3 mL/min and the column temperature at 30 ℃. MS analysis was based on electrospray ion source with positive and negative ion mode scanning. The identification of compounds was conducted through the mass spectrometry data⁃base ，compound fragmentation patterns ，and relevant literature. In this experiment ，a total of 82 compounds were identified ，mainly including flavonoids ，phenylpropanoids ，and terpenoids. Among them ，there were 22 types of flavonoids ，24 types of phenylpropanoids ，25 types of terpe⁃noids ，4 types of phenolic acids ，6 types of steroids ，and 1 type of amino acids. Additionally ，10 new chemical components were discovered for the first time when the herbal ingredients were com⁃bined to form a compound. UPLC-Q-TOF-MS/MS technology provides a convenient ，fast ，and ac⁃curate method for identifying chemical components in the Jixueteng formula extract. The identifieddoi ：10.12452/j.fxcsxb.23120738收稿日期：2023－12－07；修回日期：2024－01－31基金项目：2021年度广东省重点建设学科科研能力提升项目（2021ZDJS143）；2021年省属科研机构稳定性支持项目（粤财科教［2021］113号）；广州市科技计划项目（202102080588）∗ 通讯作者：曹颖男，博士，教授，研究方向：中药药理学，E -mail ：85394092@研究报告512分析测试学报第 43 卷chemical constituents can cover the main active ingredients of the herbal compound，providing exper⁃imental evidence and theoretical foundation for quality standardization and pharmacological researchof the compound.Key words：UPLC-Q-TOF-MS/MS；Jixueteng formula extract；chemical constituents；fragmen⁃tation pattern近年来癌症的发病率逐年上升，肿瘤的发生发展与机体的免疫功能低下密切相关。

重组贻贝粘蛋白的表征及功效评价

生物技术进展 2023 年第 13 卷第 4 期 596 ~ 603Current Biotechnology ISSN 2095‑2341研究论文Articles重组贻贝粘蛋白的表征及功效评价李敏，魏文培，乔莎，郝东，周浩，赵硕文，张立峰，侯增淼 *西安德诺海思医疗科技有限公司，西安 710000摘要：为了推进重组贻贝粘蛋白在医疗、化妆品领域的应用，对大肠杆菌规模化发酵及纯化生产获得的重组贻贝粘蛋白进行了表征及功效评价。

经Edman 降解法、基质辅助激光解吸电离飞行时间质谱、PITC 法、非还原型SDS -聚丙烯酰胺凝胶电泳法、凝胶法、改良的Arnow 法对重组贻贝粘蛋白进行氨基酸N 端测序、相对分子量分析、氨基酸组成分析、蛋白纯度分析、内毒素含量测定、多巴含量测定；通过细胞迁移、斑马鱼尾鳍修复效果对重组贻贝粘蛋白进行功效评价。

结果显示，获得的重组贻贝粘蛋白与理论的一级结构一致，蛋白纯度达95%以上，内毒素<10 EU ·mg -1,多巴含量大于5%；重组贻贝粘蛋白浓度为60 μg ·mL -1时能够显著促进细胞增殖的活性（P <0.01）；斑马鱼尾鳍面积样品组与模型对照组相比极显著增加（P <0.001）。

研究结果表明，重组贻贝粘蛋白具有显著的促细胞迁移和修复愈合的功效，具备作为生物医学材料的潜质。

关键词：贻贝粘蛋白；基因重组；生物材料；表征；功效评价DOI ：10.19586/j.20952341.2023.0021 中图分类号：S985.3+1 文献标志码：ACharacterization and Efficacy Evaluation of Recombinant Mussel Adhesive ProteinLI Min ， WEI Wenpei ， QIAO Sha ， HAO Dong ， ZHOU Hao ， ZHAO Shuowen ， ZHANG Lifeng ，HOU Zengmiao *Xi'an DeNovo Hith Medical Technology Co.， Ltd ， Xi'an 710000， ChinaAbstract ：In order to promote the application of recombinant mussel adhesive protein in the medical and cosmetics field ， the recombi⁃nant mussel adhesive protein obtained from scale fermentation and purification of Escherichia coli was characterized and its efficacy was evaluated. Amino acid N -terminal sequencing ， relative molecular weight analysis ， amino acid composition analysis ， protein purityanalysis ， endotoxin content ， dihydroxyphenylalanine （DOPA ） content of recombinant mussel adhesive protein were determined by the following methods ： Edman degradation ， matrix -assisted laser desorption ionization time -of -flight mass spectrometry （MALDI -TOF -MS ）， phenyl -isothiocyanate （PITC ）， nonreductive SDS -polyacrylamide gel electrophoresis （SDS -PAGE ）， gel method ， modified Ar⁃now. The efficacy of recombinant mussel adhesive protein was evaluated by cell migration and repairing effect of zebrafish tail fin. Re⁃sults showed that the obtained recombinant mussel adhesive protein was confirmed to be consistent with the theoretical primary structure ， protein purity of more than 95%， endotoxin <10 EU ·mg -1， DOPA content above 5%. When the recombinant mussel adhesive protein concentration was 60 μg ·mL -1， the effect of promoting cell proliferation was the most obvious ， and it had very significant activity （P <0.01）. The caudal fin area of zebrafish in sample group was significantly increased compared with model control group （P <0.001）. The results indicated that recombinant mussel adhesive protein can promote cell migration and repair healing and has the potential to be used as biomedical materials.Key words ：mussel adhesive protein ； gene recombination ； biological materials ； representation ； efficacy evaluation贻贝粘蛋白（mussel adhesive protein ， MAP ）也称作贻贝足丝蛋白（mussel foot protein ，Mfps ），收稿日期：2023⁃02⁃24；接受日期：2023⁃03⁃31联系方式：李敏 E -mail:*******************;*通信作者侯增淼 E -mail:***********************.cn李敏，等：重组贻贝粘蛋白的表征及功效评价是海洋贝类——紫贻贝（Mytilus galloprovincalis）、厚壳贻贝（Mytilus coruscus）、翡翠贻贝（Perna viri⁃dis）等分泌的一种特殊的蛋白质，贻贝中含有多种贻贝粘蛋白，包括贻贝粘蛋白（Mfp 1～6）、前胶原蛋白（precollagens）和基质蛋白（matrix proteins）等［1］。

ADC药物研发现状

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Genetics Inc Discovery SGN-LIV1A Seattle Genetics Inc Discovery SL-101Stemline Therapeutics Inc Discovery SYD-983Synthon Biopharmaceuticals Discovery T01-OX2Intellect Neurosciences Inc Discovery TBL-0306L Transgene Biotek Ltd Discovery TBL-0306M Transgene Biotek Ltd Discovery TBL-0805E Transgene Biotek Ltd Discovery thio-trastuzumab-mpeo-DM1Genentech Inc Discovery trastuzumab-PNU-159682 antibody-drug conjugate (cancer), Genentech Genentech Inc Discovery veltuzumab-IFN alpha 2b conjugate (cancer), IBC/Immunomedics IBC Pharmaceuticals Inc Discovery BIIB-015Biogen Inc Suspended Pretarget technology (gastrointestinal adenocarcinoma), NeoRx Poniard Pharmaceuticals Inc Suspended125I-AnnA1 IgG Sidney Kimmel Cancer Center No Development Reported131I-CC49-SCA Enzon Labs Inc No Development Reported177Lu-capromab pendetide Cytogen Corp No Development Reported90Y-capromab pendetide Cytogen Corp No Development Reported99mTC-BERH2Medac GmbH No Development Reportedanti-CD133-vcMMAF Seattle Genetics Inc No Development Reportedanti-CD22 antibody drug-conjugates, Medarex/BMS Medarex Inc No Development Reportedanti-PSMA antibody-drug conjugates (cancer), Medarex Medarex Inc No Development Reportedantibody-drug conjugates (solid tumors), Daiichi Sankyo Seattle Genetics Inc No Development ReportedAVE-9633ImmunoGen Inc No Development Reportedbectumomab Immunomedics Inc No Development ReportedCA125/MUC16-targeting antibody-drug conjugate (ovarian cancer),Genentech Genentech Inc No Development Reportedcathepsin B-sensitive prodrugs, BMS Bristol-Myers Squibb Pharmaceutical ResearchInstituteNo DevelopmentReportedCC49 humanized radioimmunoconjugates, National Cancer Institute,University of Alabama at Birmingham National Cancer Institute No Development ReportedCD4-BFFI Roche Holding AG No Development ReportedCHB-111ViRexx Medical Corp No Development ReportedCHT-25University College London No Development ReportedCMD-193Wyeth No Development ReportedCNTO-95 immunoconjugates (cancer), Centocor Janssen Biotech Inc No Development Reportedconjugated PEI/anti-CD133 mAb plasmid-based gene therapy (brain tumor),Discovery genomics Discovery Genomics Inc No Development ReportedcT84.66City of Hope No Development Reporteddelta 9-cadherin targeting antibody (gastric cancer), Actinium Helmholtz Zentrum München No Development Reporteddiphtheria toxin, RCT Research Corporation Technologies No Development Reporteddoxorubicin-C225 conjugate (STEALTH), SEQUUS SEQUUS Pharmaceuticals Inc No Development ReportedDTPA-BrE-3University of Colorado System No Development ReportedDXL-625InNexus Biotechnology Inc No Development ReportedG3.519-PAP-S Tanox Inc No Development ReportedhuHMFG1-caspase Antisoma plc No Development ReportedIMGN-007ImmunoGen Inc No Development ReportedIMGN-009ImmunoGen Inc No Development Reportedimmunoconjugate (cancer MN), Bayer Bayer AG No Development ReportedImmuRAID-AFP-99mTc, Immunomedics Immunomedics Inc No Development ReportedIMTOX 22-97A University of Texas Southwestern MedicalCenterNo DevelopmentReportedKSB-201KS Biomedix Holdings plc No Development ReportedLA22-radioimmunoconjugates (cancer), Welson/Peking University Welson Pharmaceuticals Inc No Development Reportedlabetuzumab Immunomedics Inc No Development ReportedLMB-1, NIH National Institutes of Health No Development ReportedLu-177-trastuzumab Tarbiat Modares University No Development ReportedLymphoScan Immunomedics Inc No Development ReportedMDX-11Medarex Inc No Development ReportedMDX-1203Medarex Inc No Development ReportedMDX-1206Medarex Inc No Development Reportedmonoclonal-porphyrins, Quadra Logic QLT Inc No Development Reportedmonoclonals, Quest Quest Biotechnology Inc No Development ReportedNogo receptor modulators, Biogen Idec Yale University No Development ReportedONS-1210Oncobiologics Inc No Development ReportedOP-06 program (cancer), Onco-Pharmakon Onco-Pharmakon Inc No Development Reportedpaclitaxel analogs and immunoconjugates (cancer), Bioxel Bioxel Pharma Inc No Development ReportedPE38-conjugated anti-CD30 immunotoxin, NCI National Cancer Institute No Development Reportedprostate-specific MAb, NIH National Institutes of Health No Development ReportedR-1549The UK Imperial Cancer Research Fund No Development Reportedradiolabeled Tx3.833Beth Israel Deaconess Medical Center No Development Reportedscu-PA-59D8Bristol-Myers Squibb Co No Development ReportedSGN-17/19Seattle Genetics Inc No Development Reportedtaxane-monoclonal antibody conjugates, ImClone ImClone Systems Inc No Development Reportedtranscobalamin (vitamin B12) receptor-targeting mAbTCR23-saporinconjugate (cancer), Kyto Kyto Biopharma Inc No Development Reportedtrastuzumab-autophilic peptide conjugate (breast cancer), InNexusBiotechnology InNexus Biotechnology Inc No Development Reportedtrastuzumab-MC-vc-PAB-MMAF Genentech Inc No Development ReportedTRP-targeted antibody conjugate (Yttrium 90/MX-DTPA), SomantaPharmaceuticals Immunodex Inc No Development Reportedtucotuzumab celmoleukin EMD Lexigen Research Center Corp No Development ReportedVB4-011Viventia Biotech Inc No Development ReportedVB6-011Viventia Biotech Inc No Development ReportedVB6-050Viventia Biotech Inc No Development ReportedXomaZyme-791XOMA Corp No Development Reportednofetumomab Poniard Pharmaceuticals Inc Withdrawn 131I-81C6Duke University Discontinued 131I-ImmuRAIT-HCG, Immunomedics Immunomedics Inc Discontinued B-B4-DC1ImmunoGen Inc Discontinued CC49 radioimmunoconjugates, University of Alabama at Birmingham University of Alabama at Birmingham Discontinued CD5 monoclonals/RIPs, Italfarmaco Italfarmaco SpA Discontinued CVX-045CovX Pharmaceuticals Inc Discontinued CVX-060CovX Pharmaceuticals Inc Discontinued CVX-241CovX Pharmaceuticals Inc Discontinued CVX-343CovX Pharmaceuticals Inc Discontinued doxorubicin-BR96 conjugate, BMS Bristol-Myers Squibb Co Discontinued doxorubicin-CEA conjugate, Immunomedics Immunomedics Inc Discontinued doxorubicin-LL2 conjugate, Immunomedics Immunomedics Inc Discontinued FAP5-DM1Boehringer Ingelheim Corp Discontinued FGFR4-CovX-Body CovX Pharmaceuticals Inc Discontinued HuM-195-Bi-213PDL BioPharma Inc Discontinued human placental growth factor 1-CVX-2000 monoclonal antibody conjugatedtherapeutic (CovX-body, cancer), CovX CovX Pharmaceuticals Inc Discontinued huN901-CC-1065ImmunoGen Inc Discontinued huN901-DC1ImmunoGen Inc Discontinued ImmuRAID-HCG-99mTc, Immunomedics Immunomedics Inc Discontinued ImmuRAIT-CEA-rhenium-188, Immunomedics Immunomedics Inc Discontinued MDX-214Medarex Inc Discontinued MEDI-547MedImmune LLC Discontinued MLN-2704Cornell University Discontinued Oncolym Peregrine Pharmaceuticals Inc Discontinued Oncolysin B Dana-Farber Cancer Institute Inc DiscontinuedOncolysin CD6Dana-Farber Cancer Institute Inc Discontinued Oncolysin M Dana-Farber Cancer Institute Inc Discontinued Oncolysin S Dana-Farber Cancer Institute Inc Discontinued Oncopurge Poniard Pharmaceuticals Inc Discontinued rhenium-188-LL2, Immunomedics Immunomedics Inc Discontinued SMART ABL-364Novartis AG Discontinued targeted ranpirnase conjugates (cancer), Alfacell Tamir Biotechnology Inc DiscontinuedHighest Dev Status。

艾美捷总胆汁酸(TBA)测定试剂盒（酶循环法）说明书

总胆汁酸(TBA)测定试剂盒（酶循环法）说明书【产品名称】总胆汁酸(TBA)测定试剂盒（酶循环法）【包装规格】a)试剂1：2×45mL 试剂2：2×15mL b)试剂1：4×60mL 试剂2：4×20mL c)试剂1：2×60mL试剂2：2×20mL【预期用途】用于体外定量测定人体血清中总胆汁酸的含量。

血清中TBA 水平升高见于急性病毒性肝炎、肝硬化、胆汁淤积性胆管炎、慢性活动性肝炎、酒精性肝炎、阻塞性黄疸、肝囊性纤维变性[1]。

【检验原理】胆汁酸被3α-HSD 及THIO-NAD 特异性的氧化，生成3-酮类固及还原型硫代辅酶Ⅰ（THIO －NADH ）。

此外，生成的3－酮类固醇在3α羟基类固醇脱氢酶及还原型硫代辅酶Ⅰ（THIO －NADH ）存在下，生成胆汁酸及氧化型硫代辅酶Ⅰ（THIO －NAD ）。

如上述，据循环酶而放大微量的胆汁酸量，测定在单位时间内生成的还原型硫代辅酶Ⅰ在405nm 处的吸光度变化，可求得样本中总胆汁酸的含量。

【主要组成成分】试剂1主要组分磷酸氢二钠-柠檬酸缓冲液100mmol/L 氧化型硫代辅酶Ⅰ(THIO-NAD)950mg/L还原型辅酶(NADH)6g/L 聚氧乙烯油醇醚适量试剂2主要组分Tris 缓冲液100mmol/L 3α－羟基类固醇脱氢酶(3α－HSDH)12.5KU/L聚氧乙烯油醇醚适量注：不同批号试剂盒中各组分未经试验不可互换。

【储存条件及有效期】贮存于2～8℃，有效期为18个月，生产日期、有效期见标签。

【适用仪器】艾威德AS-420/AS-660/AS-1200；日立HITACHI 7020型/7060型/7180型/7600型/LABOSPECT 008AS 型；贝克曼AU400/AU480/AU640/AU680/AU2700/AU5400/AU5800/AU5811/AU5821；佳能TBA-FX8/TBA-120FR /TBA-2000FR ；罗氏cobas 8000c 702/cobas 8000c 701/cobas 8000c 502；西门子SIEMENS ADVIA 1800/ADVIA 2400；雅培ABBOTT ARCHITECT c8000/ARCHITECT c16000/ARCHITECT ci8200；西森美康SYSMEX BM6010/C ；科华KHB 卓越310/卓越330/卓越400/卓越450/ZY-1200/ZY-1280；迪瑞CS-240/CS-T300/CS-300B/CS-380/CS-400A/CS-400B/CS-600A/CS-600B/CS-800A/CS-800B/CS-1200/CS-1200ISE/CS-1300B/CS-1400；迈瑞MINDRAY BS-220/BS-330/BS-350E/BS-380/BS-390/BS-400/BS-430/BS-600/BS-800/BS-2000M ；颐兰贝ES-200/ES-380/ES-480；赛诺迈德SUNMATIK-9050型；雷杜Chemray 420；英诺华D280；特康TC6010L ；锦瑞GS400；普康6066。

ABT-737_SDS_MedChemExpress

Inhibitors, Agonists, Screening LibrariesSafety Data Sheet Revision Date:May-24-2017Print Date:May-24-20171. PRODUCT AND COMPANY IDENTIFICATION1.1 Product identifierProduct name :ABT-737Catalog No. :HY-50907CAS No. :852808-04-91.2 Relevant identified uses of the substance or mixture and uses advised againstIdentified uses :Laboratory chemicals, manufacture of substances.1.3 Details of the supplier of the safety data sheetCompany:MedChemExpress USATel:609-228-6898Fax:609-228-5909E-mail:sales@1.4 Emergency telephone numberEmergency Phone #:609-228-68982. HAZARDS IDENTIFICATION2.1 Classification of the substance or mixtureNot a hazardous substance or mixture.2.2 GHS Label elements, including precautionary statementsNot a hazardous substance or mixture.2.3 Other hazardsNone.3. COMPOSITION/INFORMATION ON INGREDIENTS3.1 SubstancesSynonyms:ABT737; ABT 737Formula:C42H45ClN6O5S2Molecular Weight:813.43CAS No. :852808-04-94. FIRST AID MEASURES4.1 Description of first aid measuresEye contactRemove any contact lenses, locate eye-wash station, and flush eyes immediately with large amounts of water. Separate eyelids with fingers to ensure adequate flushing. Promptly call a physician.Skin contactRinse skin thoroughly with large amounts of water. Remove contaminated clothing and shoes and call a physician.InhalationImmediately relocate self or casualty to fresh air. If breathing is difficult, give cardiopulmonary resuscitation (CPR). Avoid mouth-to-mouth resuscitation.IngestionWash out mouth with water; Do NOT induce vomiting; call a physician.4.2 Most important symptoms and effects, both acute and delayedThe most important known symptoms and effects are described in the labelling (see section 2.2).4.3 Indication of any immediate medical attention and special treatment neededTreat symptomatically.5. FIRE FIGHTING MEASURES5.1 Extinguishing mediaSuitable extinguishing mediaUse water spray, dry chemical, foam, and carbon dioxide fire extinguisher.5.2 Special hazards arising from the substance or mixtureDuring combustion, may emit irritant fumes.5.3 Advice for firefightersWear self-contained breathing apparatus and protective clothing.6. ACCIDENTAL RELEASE MEASURES6.1 Personal precautions, protective equipment and emergency proceduresUse full personal protective equipment. Avoid breathing vapors, mist, dust or gas. Ensure adequate ventilation. Evacuate personnel to safe areas.Refer to protective measures listed in sections 8.6.2 Environmental precautionsTry to prevent further leakage or spillage. Keep the product away from drains or water courses.6.3 Methods and materials for containment and cleaning upAbsorb solutions with finely-powdered liquid-binding material (diatomite, universal binders); Decontaminate surfaces and equipment by scrubbing with alcohol; Dispose of contaminated material according to Section 13.7. HANDLING AND STORAGE7.1 Precautions for safe handlingAvoid inhalation, contact with eyes and skin. Avoid dust and aerosol formation. Use only in areas with appropriate exhaust ventilation.7.2 Conditions for safe storage, including any incompatibilitiesKeep container tightly sealed in cool, well-ventilated area. Keep away from direct sunlight and sources of ignition.Recommended storage temperature:Powder-20°C 3 years4°C 2 yearsIn solvent-80°C 6 months-20°C 1 monthShipping at room temperature if less than 2 weeks.7.3 Specific end use(s)No data available.8. EXPOSURE CONTROLS/PERSONAL PROTECTION8.1 Control parametersComponents with workplace control parametersThis product contains no substances with occupational exposure limit values.8.2 Exposure controlsEngineering controlsEnsure adequate ventilation. Provide accessible safety shower and eye wash station.Personal protective equipmentEye protection Safety goggles with side-shields.Hand protection Protective gloves.Skin and body protection Impervious clothing.Respiratory protection Suitable respirator.Environmental exposure controls Keep the product away from drains, water courses or the soil. Cleanspillages in a safe way as soon as possible.9. PHYSICAL AND CHEMICAL PROPERTIES9.1 Information on basic physical and chemical propertiesAppearance Light yellow to yellow (Solid)Odor No data availableOdor threshold No data availablepH No data availableMelting/freezing point No data availableBoiling point/range No data availableFlash point No data availableEvaporation rate No data availableFlammability (solid, gas)No data availableUpper/lower flammability or explosive limits No data availableVapor pressure No data availableVapor density No data availableRelative density No data availableWater Solubility No data availablePartition coefficient No data availableAuto-ignition temperature No data availableDecomposition temperature No data availableViscosity No data availableExplosive properties No data availableOxidizing properties No data available9.2 Other safety informationNo data available.10. STABILITY AND REACTIVITY10.1 ReactivityNo data available.10.2 Chemical stabilityStable under recommended storage conditions.10.3 Possibility of hazardous reactionsNo data available.10.4 Conditions to avoidNo data available.10.5 Incompatible materialsStrong acids/alkalis, strong oxidising/reducing agents.10.6 Hazardous decomposition productsUnder fire conditions, may decompose and emit toxic fumes.Other decomposition products - no data available.11.TOXICOLOGICAL INFORMATION11.1 Information on toxicological effectsAcute toxicityClassified based on available data. For more details, see section 2Skin corrosion/irritationClassified based on available data. For more details, see section 2Serious eye damage/irritationClassified based on available data. For more details, see section 2Respiratory or skin sensitizationClassified based on available data. For more details, see section 2Germ cell mutagenicityClassified based on available data. For more details, see section 2CarcinogenicityIARC: No component of this product present at a level equal to or greater than 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.ACGIH: No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by ACGIH.NTP: No component of this product present at a level equal to or greater than 0.1% is identified as a anticipated or confirmed carcinogen by NTP.OSHA: No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by OSHA.Reproductive toxicityClassified based on available data. For more details, see section 2Specific target organ toxicity - single exposureClassified based on available data. For more details, see section 2Specific target organ toxicity - repeated exposureClassified based on available data. For more details, see section 2Aspiration hazardClassified based on available data. For more details, see section 212. ECOLOGICAL INFORMATION12.1 ToxicityNo data available.12.2 Persistence and degradabilityNo data available.12.3 Bioaccumlative potentialNo data available.12.4 Mobility in soilNo data available.12.5 Results of PBT and vPvB assessmentPBT/vPvB assessment unavailable as chemical safety assessment not required or not conducted.12.6 Other adverse effectsNo data available.13. DISPOSAL CONSIDERATIONS13.1 Waste treatment methodsProductDispose substance in accordance with prevailing country, federal, state and local regulations.Contaminated packagingConduct recycling or disposal in accordance with prevailing country, federal, state and local regulations.14. TRANSPORT INFORMATIONDOT (US)This substance is considered to be non-hazardous for transport.IMDGThis substance is considered to be non-hazardous for transport.IATAThis substance is considered to be non-hazardous for transport.15. REGULATORY INFORMATIONSARA 302 Components:No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.SARA 313 Components:This material does not contain any chemical components with known CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.SARA 311/312 Hazards:No SARA Hazards.Massachusetts Right To Know Components:No components are subject to the Massachusetts Right to Know Act.Pennsylvania Right To Know Components:No components are subject to the Pennsylvania Right to Know Act.New Jersey Right To Know Components:No components are subject to the New Jersey Right to Know Act.California Prop. 65 Components:This product does not contain any chemicals known to State of California to cause cancer, birth defects, or anyother reproductive harm.16. OTHER INFORMATIONCopyright 2017 MedChemExpress. The above information is correct to the best of our present knowledge but does not purport to be all inclusive and should be used only as a guide. The product is for research use only and for experienced personnel. It must only be handled by suitably qualified experienced scientists in appropriately equipped and authorized facilities. The burden of safe use of this material rests entirely with the user. MedChemExpress disclaims all liability for any damage resulting from handling or from contact with this product.Caution: Product has not been fully validated for medical applications. For research use only.Tel: 609-228-6898 Fax: 609-228-5909 E-mail: tech@Address: 1 Deer Park Dr, Suite Q, Monmouth Junction, NJ 08852, USA。

IFCC Aspartate Aminotransferase 检测手册说明书

ASTAspartate Aminotransferase IFCCMANUAL RX MONZAINTENDED USEFor the quantitative in vitro determination of AspartateAminotransferase (AST) in serum and plasma. This product is suitable for manual use and on the Rx Monza analyser.Cat. No. AS 1202 R1a. Buffer/Substrate 1 x 70 ml 20 x 2 ml R1b. Enzyme/Coenzyme/ 20 x 2 ml α-oxoglutarate GTIN: 05055273200416AS 1204 R1a. Buffer/Substrate 1 x 105 ml 10 x 10 ml R1b. Enzyme/Coenzyme/ 10 x 10 ml α-oxoglutarate GTIN: 05055273200423AS 1267 R1a. Buffer/Substrate 1 x 105 ml 5 x 20 ml R1b. Enzyme/Coenzyme/ 5 x 20 ml α-oxoglutarate GTIN: 05055273200430AS 2359 R1a. Buffer/Substrate 5 x 100 ml 5 x 100 ml R1b. Enzyme/Coenzyme/ 5 x 100 ml α-oxoglutarate GTIN: 05055273200454UV METHODThis is an optimised standard method according to the concentrations recommended by the IFCC.CLINICAL SIGNIFICANCE (1,2,3,4)The aminotransferases are a group of enzymes that catalyse the inter conversions of amino acids and α-oxoacids by transfer of amino groups. AST (aspartate aminotransferase or glutamate oxaloacetatetransaminase) has been found in the cytoplasm and the mitochondria of cells that have been studied. In cases of mild tissue damage, e.g. liver, the predominant form of serum AST is that from the cytoplasm, with a smaller amount coming from the mitochondria. Severe tissue damage will result in more mitochondrial enzyme being released. Elevated levels of AST can signal myocardial infarction, hepatic disease, muscular dystrophy and organ damage.Although heart muscle is found to have the most activity of the enzyme, significant activity has also been seen in the brain, liver, gastric mucosa, adipose tissue and kidneys of humans.The IFCC has now recommended (1980) standardised procedures for AST determinations including:-1. optimization of substrate concentrations.2. Employment of Tris buffers (instead of phosphate, which has beenshown to inhibit recombination of the apoenzyme with pyridoxal phosphate).3. Pre-incubation of combined buffer and serum to allow sidereactions with NADH to occur. 4. Substrate start (α-oxoglutarate)5. Optional pyridoxal phosphate activation.This is an optimised standard method according to the recommendations of the IFCC.PRINCIPLEα-oxoglutarate reacts with L-aspartate in the presence of AST to form L-glutamate plus oxaloacetate. The indicator reaction utilises the oxaloacetate for a kinetic determination of NADH consumption. AST -oxoglutarate + L-aspartate L-glutamate + oxaloacetate MDH oxaloacetate + NADH + H + L-malate + NAD +SPECIMEN COLLECTION AND PREPARATION (5) Serum:- Use serum free from haemolysis.Plasma:- EDTA or heparin can be used as the anticoagulant.Plasma should be separated from cells within one hour after collection.Specimens should be refrigerated if not used immediately:-Specimens stored longer than 3 days should be frozen at -20︒C.REAGENT COMPOSITIONContents Concentrations in the TestR1a. Buffer/Substrate Tris buffer 80 mmol/l, pH 7.5 L-aspartate 240 mmol/l R1b. Enzyme/Coenzyme/α-oxoglutarate α-oxoglutarate 12 mmol/l MDH ≥420 U/l LD ≥600 U/l NADH 0.18 mmol/lSAFETY PRECAUTIONS AND WARNINGS For in vitro diagnostic use only. Do not pipette by mouth.Exercise the normal precautions required for handling laboratory reagents.Solution R1a contains Sodium Azide. Avoid ingestion or contact with skin or mucous membranes. In case of skin contact, flush affected area with copious amounts of water. In case of contact with eyes or if ingested, seek immediate medical attention.Sodium Azide reacts with lead and copper plumbing, to form potentially explosive azides. When disposing of such reagents flush with large volumes of water to prevent azide build up. Exposed metal surfaces should be cleaned with 10% sodium hydroxide.Health and Safety data sheets available on request.The reagents must be used only for the purpose intended by suitably qualified laboratory personnel, under appropriate laboratory conditions.STABILITY AND PREPARATION OF REAGENTS R1a. Buffer/SubstrateContents ready for use. Stable up to the expiry date when stored at +2 to +8︒C.R1b. Enzyme/Coenzyme/α-oxoglutarate Reconstitute one vial of Enzyme/Coenzyme/α-oxoglutarate R1b with the appropriate volume of Buffer/Substrate R1a: 2 ml for the 20 x 2 ml kit (AS 1202) 10 ml for the 10 x 10 ml kit (AS 1204) 20 ml for the 5 x 20 ml kit (AS 1267) Stable for 14 days at +2 to +8︒C or 24 hours at +15 to +25︒C. Cat. AS 2359 5 x 100 mlReconstitute one vial of Enzyme/Coenzyme/α-oxoglutarate R1b with a portion of Buffer/Substrate R1a and then transfer the entire contents to bottle R1a rinsing bottle R1b several times. Stable for 14 days at +2 to +8︒C or 24 hours at +15 to +25︒C.MATERIALS PROVIDED Buffer/SubstrateEnzyme/Coenzyme/ -oxoglutarateMATERIALS REQUIRED BUT NOT PROVIDEDRandox Assayed Multisera Level 2 (Cat. No. HN 1530) and Level 3 (Cat. No. HE 1532)Randox Calibration Serum Level 3 (Cat. No. CAL 2351) RX series Saline (Cat. No. SA 3854)PROCEDUREAspirate fresh ddH 2O and perform a new Gain Calibration in flow cell mode. Select AST in the Run Test screen and carry out a water blank as instructed.Pipette into a test tube:Sample 0.05 ml Reagent 0.5 mlMix and aspirate into the Rx Monza.CALIBRATION FOR RX MONZAThe use of Saline and Randox Calibration Serum Level 3 isrecommended for calibration. Calibration is recommended with change of reagent lot or as indicated by quality control procedures.FOR MANUAL USEWavelength: 340 nm (Hg 334 nm or Hg 365 nm) Cuvette: 1 cm light path Temperature: 25/30/37︒C Measurement: against airPipette into cuvette: Macro MicroSample 0.2 ml 0.1 ml Enzyme/Coenzyme/ α-oxoglutarate R1 2.0 ml 1.0 mlMix, read initial absorbance after 1 minute. Read again after 1, 2 and 3 minutes. Note: If the absorbance change per minute is between 0.11 and 0.16 at 340/Hg 334 nm 0.06 and 0.08 at Hg 365 nmuse only the values for the first 2 minutes for the calculation.MANUAL CALCULATIONTo calculate the AST activity, use the following formulae:U/l = 1746 x A 340 nm/min U/l = 1780 x A Hg 334 nm/min U/l = 3235 x A Hg 365 nm/minSTANDARDISATIONRandox Calibration Serum Level 3 is traceable to AST reference material JSCC TS01.QUALITY CONTROLRandox Assayed Multisera, Level 2 and Level 3 are recommended for daily quality control. Two levels of controls should be assayed at least once a day. Values obtained should fall within a specified range. If these values fall outside the range and repetition excludes error the following steps should be taken:1. Check instrument settings and light source.2. Check cleanliness of all equipment in use.3. Check water. Contaminants, i.e. bacterial growth, maycontribute to inaccurate results. 4. Check reaction temperature.5. Check expiry date of kit and contents.6. Contact Randox Laboratories Customer Technical Services, Northern Ireland +44 (0) 28 9445 1070.SPECIFICITY/INTERFERENCE (6,7)Gross haemolysis will produce falsely elevated test results. The effects of various drugs on AST activity should be taken intoconsideration in the case of patients receiving large doses of drugs.The analytes below were tested up to the following levels and were found not to interfere: Haemoglobin 250 mg/dl Free Bilirubin 25 mg/dl Conjugate Bilirubin 25 mg/dl Triglycerides 1000 mg/dlIntralipid ® 200 mg/dlA list of substances and conditions known to effect AST activity in vivo is given by both Young et al and Friedman et al. Norepresentation is made by Randox Laboratories Ltd regarding the completeness of these lists and the accuracy of the information contained therein.NORMAL VALUES IN SERUM (8,9) +25︒C +30︒C +37︒C Men up to 18 U/l up to 25 U/l up to 37 U/l Women up to 15 U/l up to 21 U/l up to 31 U/lIt is recommended that each laboratory establish its own reference range to reflect the age, sex, diet and geographical location of the population.SPECIFIC PERFORMANCE CHARACTERISTICS The following performance data were obtained using an Rx Monza analyser running at +37o C.LINEARITYThis method is linear up to 562 U/l. If the sample concentration exceeds this value, dilute the sample 1+9 with 0.9% NaCl solution and re-assay. Multiply the result by 10.SENSITIVITYThe minimum detectable concentration of AST with an acceptable level of precision was determined as 9.3 U/l.PRECISIONIntra AssayLevel 2 Level 3Mean (U/l) 35.6 153SD 1.66 1.47CV(%) 4.65 0.96n 20 20Inter AssayLevel 2 Level 3Mean (U/l) 35.6 153SD 1.77 7.10CV(%) 4.96 4.63n 20 20CORRELATIONThis method (Y) was compared with another commerciallyavailable method (X) and the following linear regression equationobtained:Y = 1.07X + 4.9and a correlation coefficient of r = 0.997543 patient samples were analysed spanning the range 28 to 559U/l.REFERENCES1. Wroblewski F, La Due J.S: Ann Intern Med. 1956; 45: 801.2. Wroblewski F, La Due J.S: Proc Soc Exp Biol Med 1956;91: 569.3. Bergmeyer HU, Bowers GN Jr, et al: Clin Chem 1977; 23:887.4. Bergmeyer HU, Bowers GN Jr, et al: J.Clin Chem ClinBiochem 1980; 18: 521-534.5. Tietz N W: Fundamentals of Clinical Chemistry ed 3.Philadelphia, WB Saunders Co. 1987, pg 372.6. Young D S, et al: Clin Chem 1975, 21; No5.7. Friedman RB, et al: Clin Chem 1980, 26; No4.8. Wallnofer H, Schmidt.E, Schmidt FW, eds: Synopsis derLeberkrankheiten Stuttgart, Georg Thieme Verlag, 1974.9. Thefeld W, et al: Dtsch Med Wschr 1974; 99: 343.Revised 26 Apr 16 biRev. 003THIS PAGE IS INTENTIONALLY BLANK。

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Filling material A AC 45 UBI / FR 310 5000 Acetic acid (5% at 20°C) Acetic acid (5% at 50°C) Acetic acid (at 40°C) Acetic acid (at 50°C) Acetic acid anhydride Acetoacetate, ethylAcetoacetate, methylAcetone Acetulan Acetyl chloride Acricid 40 EC Acricid liquid Acryl amide Acrylat 38092, solvent base Acrylic acid Acrylic Polymere RDZ 1263 Acrylic Polymere RDZ 2738 Acrylic Polymere RDZ 2771 Acrylic Polymere RDZ 958 Acrylic Polymere RZ 20810 Acrylic Polymere RZ 21376 Acrylic Polymere RZ 421 Activated carbon Activoll EFL Addipast 350 WD black Additol XK 391 Additol XK 406 Adhesion Promoter AMS 70 After Shave Afugan Aircraft fuel Aircraft fuel, Jet A1 Akypo RO 90 VG Akypo RO 90 VG Aldehyde C12 Aldehyde C8 Aldurol VUP 21 Aldurol VUP 51 Alkydal R 35 W Allylic heptylate

德谷门冬双胰岛素注射液治疗2_型糖尿病临床效果及安全性探讨

DOI：10.16658/ki.1672-4062.2023.17.098德谷门冬双胰岛素注射液治疗2型糖尿病临床效果及安全性探讨林生，谢平，陈予福州市长乐区人民医院内分泌科，福建福州350200[摘要]目的研究德谷门冬双胰岛素注射液治疗2型糖尿病的临床效果及安全性。

方法选取于2022年7月—2023年4月福州市长乐区人民医院收治的2型糖尿病患者98例为研究对象，采用随机抓阄法分为两组，每组49例。

两组均联用常规降糖药物治疗，对照组采用甘精胰岛素注射液治疗，观察组采用德谷门冬双胰岛素注射液治疗。

对比两组临床治疗效果、临床症状好转时间和胰岛素用量情况、糖代谢指标、胰岛素功能指标、不良反应发生情况、心血管不良事件发生情况。

结果观察组总有效率高于对照组，差异有统计学意义（P<0.05）。

观察组尿酮体转阴时间、血糖达标时间、胰岛素用量均优于对照组，差异有统计学意义（P< 0.05）。

观察组空腹血糖、餐后2 h血糖、糖化血红蛋白均低于对照组，差异有统计学意义（P<0.05）。

观察组胰岛β细胞功能指数高于对照组，胰岛素抵抗指数、空腹胰岛素低于对照组，差异有统计学意义（P<0.05）。

两组恶心呕吐、倦怠乏力、低血糖总发生率比较，差异无统计学意义（P>0.05）。

两组心绞痛、心力衰竭总发生率比较，差异无统计学意义（P>0.05）。

结论德谷门冬双胰岛素注射液治疗2型糖尿病临床效果显著优于甘精胰岛素注射液，但是治疗安全性无显著变化。

[关键词] 2型糖尿病；德谷门冬双胰岛素注射液；不良反应；心血管不良事件[中图分类号] R59 [文献标识码] A [文章编号] 1672-4062（2023）09（a）-0098-04Discussion on the Clinical Effect and Safety of Insulin Degludec and Insu⁃lin Aspart Injection in the Treatment of Type 2 Diabetes MellitusLIN Sheng, XIE Ping, CHEN YuDepartment of Endocrinology, Changle District People's Hospital, Fuzhou, Fujian Province, 350200 China[Abstract] Objective To study the clinical effect and safety of insulin degludec and insulin aspart injection in the treatment of type 2 diabetes mellitus. Methods A total of 98 patients with type 2 diabetes admitted to Fuzhou Changle District People's Hospital from July 2022 to April 2023 were selected as the study objects and divided into two groups with 49 cases in each group by random lottery method. Both groups were treated with conventional hypoglycemic drugs, the control group was treated with insulin glargine injection, and the observation group was treated with Degu asparton double insulin injection. The clinical therapeutic effect, time of improvement of clinical symptoms, insulin dosage, glucose metabolism index, insulin function index, occurrence of adverse reactions and cardiovascular adverse events were compared between the two groups. Results The total effective rate of the observation group was higher than that of the control group, and the difference was statistically significant (P<0.05). The time of urine ketone body turning negative, blood glucose reaching standard and insulin dosage in observation group were better than those in control group, and the differences were statistically significant (P<0.05). Fasting plasma glucose, 2-hour postprandial blood glucose and glycated hemoglobin in the observation group were lower than those in the control group, and the differences were statistically significant (P<0.05). The function index of islet β cells in observation group was higher than that in control group, the insulin resistance index and fasting insulin was lower than that in control group, the dif⁃ference was statistically significant (P<0.05). There was no statistically significant difference in the total incidence of [作者简介]林生（1981-），男，本科，副主任医师，研究方向为糖尿病及其并发症的相关临床研究。

PFTBA Calibration Compound (FC-43)安全技术说明书

PFTBA Calibration Compound (FC-43), Part Number 392035300*************(24小时)化学品安全技术说明书GHS product identifier 应急咨询电话（带值班时间）::化学名:全氟三丁胺供应商/ 制造商:安捷伦科技贸易（上海）有限公司中国（上海）外高桥自由贸易试验区英伦路412号（邮编:200131)电话号码： 800-820-3278传真号码: 0086 (21) 5048 2818PFTBA Calibration Compound (FC-43), Part Number 392035300化学品的推荐用途和限制用途392035300部件号:物质用途:供分析化学实验室使用的试剂和标准2 ml（毫升）安瓿安全技术说明书根据 GB/ T 16483-2008 和 GB/ T 17519-2013GHS化学品标识:PFTBA 校正化合物 (FC-43)，部件号 392035300有关环境保护措施，请参阅第 12 节。

物质或混合物的分类根据 GB13690-2009 和 GB30000-2013紧急情况概述液体。

[吸湿的。

]无色。

无气味的。

不易生物降解。

H315 - 造成皮肤刺激。

H319 - 造成严重眼刺激。

H335 - 可能造成呼吸道刺激。

H413 - 可能对水生生物造成长期持续有害影响。

物理状态:颜色:气味:生物降解性:GHS危险性类别警示词:警告危险性说明:H315 - 造成皮肤刺激。

H319 - 造成严重眼刺激。

H335 - 可能造成呼吸道刺激。

H413 - 可能对水生生物造成长期持续有害影响。

:防范说明标签要素象形图皮肤腐蚀/刺激 - 类别 2严重眼损伤/眼刺激 - 类别 2AH335特异性靶器官毒性一次接触 (呼吸道刺激) - 类别 3H413危害水生环境一长期危险 - 类别 4P273 - 避免释放到环境中。

Y-27632_DataSheet_MedChemExpress

Inhibitors, Agonists, Screening Libraries Data SheetBIOLOGICAL ACTIVITY:Y–27632 is an ATP–competitive inhibitor of ROCK–I and ROCK–II , with K i of 220 nM and 300 nM for ROCK–I and ROCK–II , respectively.IC50 & Target: Ki: 220/300 nM (ROCK–I/II)[1]In Vitro: Y–27632 inhibits the ROCK family of kinases 100 times more potently than other kinases including protein kinase C,cAMP–dependent kinase and myosin light chain kinase. Y–27632 prolongs the lag time and delays the appearance of BrdU–labeled cells in a concentration–dependent manner, delays of about 1 and 4 h are noticed in the Swiss 3T3 cells treated with 10 and 100 μM Y–27632, respectively [1]. Y–27632 promotes neuronal differentiation of adipose tissue–derived stem cells (ADSCs). Compared to 1.0and 2.5 μM Y–27632 induced groups, percentages of neuroal–like cells achieved a peak in the 5.0 μM Y–27632 induced group [2].In Vivo: Y–27632 (5 and 10 mg/kg) significantly prolongs the onset time of myoclonic jerks when compare with saline group.Y–27632 (5 and 10 mg/kg) significantly prolongs the onset time of clonic convulsions when compare with saline group [3].Treatment with Dimethylnitrosamine (DMN) causes a significant decrease in rat body and liver weight (DMN–S group) compared with control animals (S–S group). Oral Y27632 (30 mg/kg) essentially prevents this DMN–induced rat body and liver weight loss (DMN–Y group)[4].PROTOCOL (Extracted from published papers and Only for reference)Kinase Assay:[1]Recombinant ROCK–I, ROCK–II, PKN, or citron kinase is expressed in HeLa cells as Myc–tagged proteins by transfection using Lipofectamine, and is precipitated from the cell lysates by the use of 9E10 monoclonal anti–Myc antibodycoupled to G protein–Sepharose. Recovered immunocomplexes are incubated with various concentrations of [32P]ATP and 10 mg of histone type 2 as substrates in the absence or presence of various concentrations of either Y–27632 or Y–30141 at 30°C for 30 min in a total volume of 30 μL of the kinase buffer containing 50 mM HEPES–NaOH, pH 7.4, 10 mM MgCl 2, 5 mM MnCl 2, 0.02% Briji 35, and 2 mM dithiothreitol. PKCa is incubated with 5 μM [32P]ATP and 200 μg/mL histone type 2 as substrates in the absence or presence of various concentrations of either Y–27632 or Y–30141 at 30°C for 10 min in a kinase buffer containing 50 mM Tris–HCl,pH 7.5, 0.5 mM CaCl 2, 5 mM magnesium acetate, 25 μg/mL phosphatidyl serine, 50 ng/mL 12–O–tetradecanoylphorbol–13–acetate and 0.001% leupeptin in a total volume of 30 μL. Incubation is terminated by the addition of 10 μL of 43 Laemmli sample buffer.After boiling for 5 min, the mixture is subjected to SDS–polyacrylamide gel electrophoresis on a 16% gel. The gel is stained withCoomassie Brilliant Blue, and then dried. The bands corresponding to histone type 2 are excised, and the radioactivity is measured [1]. Cell Assay: Y–27632 is dissolved in water and stored [1].[1]HeLa cells are plated at a density of 3×104 cells per 3.5–cm dish. The cells are cultured in DMEM containing 10% FBS in the presence of 10 mM Thymidine for 16 h. After the cells are washed with DMEM containing 10% FBS, they are cultured for an additional 8 h, and then 40 ng/mL of Nocodazole is added. After 11.5 h of theNocodazole treatment, various concentrations of Y–27632 (0–300 μM), Y–30141, or vehicle is added and the cells are incubated for another 30 min [1].Animal Administration: Y–27632 is dissolved in 0.9% NaCl (saline) (Mice)[3].Product Name:Y–27632Cat. No.:HY-10071CAS No.:146986-50-7Molecular Formula:C 14H 21N 3O Molecular Weight:247.34Target:ROCK; ROCK; ROCK Pathway:TGF–beta/Smad; Stem Cell/Wnt; Cell Cycle/DNA Damage Solubility:DMSO: ≥ 32 mg/mLY–27632 is dissolved in saline (final concentration 2%) (Rat)[4].[3][4]Mice[3]Male, inbred Swiss albino mice (2–3 months old) weighing 25–30 g are used. Mice are injected with a sub–convulsive dose of PTZ (35 mg/kg, i.p.) (on Mondays, Wednesdays and Fridays) of each week for a total of 11 injections. After each PTZ injection, mice are observed for 30 min and the occurrence of convulsive activity is recorded. After 30 min, the mice are then injected with either Fasudil (25 mg/kg, i.p.) or Y–27632 (5 mg/kg, i.p.) and returned to their home cages until the next injection. Control mice for Fasudil andY–27632 receives saline.Rat[4]Male Wistar Kind A rats (200–250 g) are used. DMN (1 g/mL) is diluted ten times with saline (final concentration 1%) and 10 mg/kg per day of DMN is injected intraperitoneally (i.p.) on the first 3 days of each week for 4 weeks. Y27632 is given orally once per day at a dose of 30 mg/kg for 4 weeks starting on the day of the first injection of DMN. The dose of 30 mg/kg corrects hypertension in several rat models without toxicity. Twenty rats are randomized into four experimental groups (n=5 in each group) as follows: (1) S–S (injection of saline i.p. and oral administration of saline); (2) S–Y (injection of saline i.p. and oral administration of Y27632); (3) DMN–S (DMN i.p. and oral administration of saline); (4) DMN–Y (DMN i.p. and oral administration of Y27632). The rats are weighed every week. They are sacrificed at the end of the fourth week and the liver is excised. In addition, a blood sample is taken immediately before the rats are sacrificed.References:[1]. Ishizaki T, et al. Pharmacological properties of Y–27632, a specific inhibitor of rho–associated kinases. Mol Pharmacol. 2000 May;57(5):976–83.[2]. Xue ZW, et al. Rho–associated coiled kinase inhibitor Y–27632 promotes neuronal–like differentiation of adult human adipose tissue–derived stem cells.Chin Med J (Engl). 2012 Sep;125(18):3332–5.[3]. Inan S, et al. Antiepileptic effects of two Rho–kinase inhibitors, Y–27632 and fasudil, in mice. Br J Pharmacol. 2008 Sep;155(1):44–51.[4]. Tada S, et al. A selective ROCK inhibitor, Y27632, prevents dimethylnitrosamine–induced hepatic fibrosis in rats. J Hepatol. 2001 Apr;34(4):529–36.Caution: Product has not been fully validated for medical applications. For research use only.Tel: 609-228-6898 Fax: 609-228-5909 E-mail: tech@Address: 1 Deer Park Dr, Suite Q, Monmouth Junction, NJ 08852, USA。

带专用耗材试剂的医疗设备采购模式分析

带专用耗材试剂的医疗设备采购模式分析唐昊12,龚小珊3,张和华",魏安海打李姝颖打谭钦文1(1.陆军军医大学大坪医院医学工程科，重庆400042；2•解放军94701部队，安徽安庆246000；3•陆军军医大学生物医学工程与影像医学系，重庆400038)［摘要］介绍了医院带专用耗材试剂的医疗设备采购管理现状，提出了带专用耗材试剂的医疗设备采购模式改进方案，并以某院检验科微生物分析仪(真菌)为例验证了所提出采购模式的可行性，分析了该模式具有的特点和优势。

指出了在采购过程中综合考虑设备以及配套耗材试剂成本、科学设置评分标准和计算公式，可以较好地解决低价抢标追求后期经济效益等问题。

［关键词］医疗设备；专用耗材试剂；医疗设备采购；采购模式;评标［中国图书资料分类号］R318；R197.39［文献标志码］A［文章编号］1003-8868(2021)02-0082-04DOI：1O.19745/j.1OO3-8868.2021038Analysis of procurement mode of medical equipment with specialconsumables and reagentsTANG Hao12,GONG Xiao-shan3,ZHANG He-hua1*,WEI An-hai1,LI Shu-ying1,TAN Qin-wen1(1.Department of Medical Engineering,Daping Hospital,Army Medical University,Chongqing400042,China;2.No.94701 Troops of the PLA,Anqing246000,Anhui Province,China;3.School of Biomedical Engineering and Imaging,Army MedicalUniversity,Chongqing400038,China)Abstract The hospital medical equipment with special consumables and reagents had the present situation of its procurement management introduced,and an improved procurement mode was put forward accordingly.The feasibility of the proposed procurement mode was verified by taking the microbiological analyzer(fungus)of the clinical laboratory department of some hospital as an example,and the characteristics and advantages of the mode were analyzed.It was suggested that some countermeasures be taken to solve the problems of low-price bidding in pursuit of later economic benefit including considering the costs of equipment and supporting consumables and reagents comprehensively,formulating evaluation standard and calculation formula scientifically and etc.［Chinese Medical Equipment Journal,2021,42(2)：82-85］Key words medical equipment;special consumables and reagent;medical equipment procurement;procurement mode;bid evaluations0引言2019年9月1日，国家卫生健康委员会印发的《医疗机构医用耗材管理办法(试行)》正式实施，文件要求“医疗机构应当加强医疗设备配套使用医用耗材的管理。

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Product Name:
ABT-737CAS No.:
852808-04-9Cat. No.:
HY-50907
Product Data Sheet
MWt:
813.43Formula:
C42H45ClN6O5S2Purity :>98%
DMSO 160mg/mL
Water
Solubility:Mechanisms:
Biological Activity:
ABT 737i BH3i ti i hibit f B l L B l 2d B l ith EC50f 787M 303M d
Pathways:Apoptosis; Target:Bcl-2 Family DMSO ≥160mg/mL Water
<1.2mg/mL Ethanol <1.2mg/mL
ABT-737 is a BH3 mimetic inhibitor of Bcl-xL, Bcl-2 and Bcl-w with EC50 of 78.7 nM, 30.3 nM and
197.8 nM, respectively; no inhibition observed against Mcl-1, Bcl-B or Bfl-1.
IC50 Value: 78.7 nM(Bcl-xL); 30.3 nM(Bcl-2); 197.8 nM(Bcl-w)
Target: Bcl-2 Family in vitro: ABT-737 displaces Bim from Bcl2's BH3-binding pocket, allowing Bim to activate Bax,
induce mitochondrial permeabilization, and rapidly commit the primary chronic lymphocytic leukemia (CLL) cells to death. Knockdown of Mcl-1 with siRNA sensitizes two resistant SCLC cell lines H196and DMS114 to ABT-737 by enhancing the induction of apoptosis. Likewise, up-regulation of Noxa sensitizes H196cells to ABT-737.ABT-737inhibits many SCLC cell lines including NCI-H889,NCI-References:
[1]. Bardwell, Philip D.; Gu, Jijie; McCarthy, Donna; Wallace, Craig; Bryant, Shaughn; The Bcl-2Family Antagonist ABT-737 Significantly Inhibits Multiple Animal Models of Autoimmunity. Journal of
Immunology, 2009, 182(12), 7482-7489sensitizes H196 cells to ABT 737. ABT 737 inhibits many SCLC cell lines including NCI H889, NCI H1963, NCI-H1417, NCI-H146 and etc. Bcl-2 and Noxa may contribute mechanistically to the cellular response to ABT-737 in NCI-H146 cells. A re...
[2]. Sun XP, Zhang X, He C, Qiao H, Jiang X, Jiang H, Sun X.ABT-737 Synergizes with Arsenic Trioxide to Induce Apoptosis of Gastric Carcinoma Cells In Vitro and In Vivo.J Int Med Res.
2012;40(4):1251-64.[3]. Stamelos VA, Redman CW, Richardson A.Understanding sensitivity to BH3 mimetics: ABT-737as a case study to foresee the complexities of personalized medicine.J Mol Signal. 2012 Aug
16;7(1):12.[4]. Clerc P, Carey GB, Mehrabian Z, Wei M, Hwang H, Girnun GD, Chen H, Martin SS, Polster BM.Rapid Detection of an ABT-737-Sensitive Primed for Death State in Cells Using Microplate-Based Respirometry PLoS One 2012;7(8):e42487E Caution: Not fully tested. For research purposes only
Medchemexpress LLC
Based Respirometry.PLoS One. 2012;7(8):e42487. E...。