人胃动素(MTL)Elisa试剂盒说明书

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人饥饿素ghrelinELISA试剂盒使用说明书

人饥饿素ghrelinELISA试剂盒使用说明书

人饥饿素 (ghrelin)ELISA试剂盒使用说明书我司ELISA试剂盒品质保证,质量优,价格实惠,是您生物实验的首选,如有需要可与我司销售人员联系。

本试剂仅供研究使用目的:本试剂盒用于测定人血清,血浆及相关液体样本中人饥饿素 (ghrelin)含量。

实验原理:本试剂盒应用双抗体夹心法测定标本中人饥饿素 (ghrelin)水平。

用纯化的人饥饿素(ghrelin)抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入饥饿素(ghrelin),再与HRP标记的饥饿素 (ghrelin)抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。

TMB在HRP酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。

颜色的深浅和样品中的饥饿素 (ghrelin)呈正相关。

用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人饥饿素 (ghrelin)浓度。

样本处理及要求:1.血清:室温血液自然凝固10-20分钟,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如出现沉淀,应再次离心。

2.血浆:应根据标本的要求选择EDTA、者柠檬酸钠或肝素作为抗凝剂,混合10-20分钟后,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如有沉淀形成,应该再次离心。

3.尿液:用无菌管收集,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如有沉淀形成,应再次离心。

胸腹水、脑脊液参照实行。

4.细胞培养上清:检测分泌性的成份时,用无菌管收集。

离心20分钟左右(2000-3000转/分)。

仔细收集上清。

检测细胞内的成份时,用PBS(PH7.2-7.4)稀释细胞悬液,细胞浓度达到100万/ml左右。

通过反复冻融,以使细胞破坏并放出细胞内成份。

离心20分钟左右(2000-3000转/分)。

仔细收集上清。

保存过程中如有沉淀形成,应再次离心。

人血管内皮生长因子 ELISA 试剂盒说明书

人血管内皮生长因子 ELISA 试剂盒说明书

产品说明书人血管内皮生长因子ELISA试剂盒(Human VEGF ELISA KIT)产品货号:H6139S, H6139M, H6139L产品规格:24T, 48T, 96T产品内容:注:终止液和显色剂具有腐蚀性,一旦接触到液体,请尽快用大量清水冲洗。

储存条件4℃避光保存,有效期见外包装。

开封后,保存温度详见说明书。

产品介绍Human VEGF ELISA Kit (Human Vascular Endothelial Cell Growth Factor Enzyme-Linked ImmunoSorbent Assay Kit) ,即人血管内皮生长因子ELISA试剂盒,可以定量检测人血清、血浆或细胞培养上清液等样本中的天然和重组VEGF浓度。

人VEGF是由两个相同亚基以二硫键交联组成的二聚体糖蛋白,基因定位于第6号染色体长臂,由8个外显子和7个内含子交替构成,约14 kb。

由于mRNA剪接方式不同,产生了单链分别含121,145,165,183,189和206个氨基酸的不同变异体。

VEGF 121分子量约为34-46 kDa,是可溶性分泌型蛋白质,以游离状态存在,不能与肝素结合;VEGF 165分子量为45 kDa,30-50%以可溶性形式分泌于细胞外基质,其余部分与细胞膜、基底膜或细胞外基质含有肝素的糖蛋白结合。

VEGF 145存在于胎盘细胞和女性生殖道肿瘤细胞。

VEGF 189及VEGF 206分泌后完全结合于细胞膜或基底膜含有肝素的糖蛋白上。

骨骼肌,心肌,肝细胞,成骨细胞,中性粒细胞,巨噬细胞,角质形成细胞,血小板,褐色脂肪组织,CD34+细胞,星形细胞,神经元和内皮细胞等多种细胞和组织均可产生VEGF。

血清和血浆样本均可检测到VEGF,由于血小板可释放VEGF,因此血清中VEGF含量较高。

VEGF是一种特异作用于血管内皮细胞的多功能细胞因子,可增加血管通透性、促进血管形成、引起细胞外基质成分改变等。

人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒

人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒

人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒供应商:上海乔羽生物有限公司上海乔羽有限公司,有elisa试剂盒,抗体,培养基人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒,猪促生长激素释放激素(GHRH)ELISA试剂盒,促生长激素释放激素elisakit,猪elisa试剂盒,GHRHelisakit上海乔羽生物供应!人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Kit performance1 sensitivity: the minimum detection concentration is less than 1 standard. Linearity of dilution. Sample linear regression and the expected concentration correlation coefficient R value is 0.990.2 specificity: no reaction with other cytokines.3 repeatability: the variation coefficient of the plate and the plate are all less than 10%.Result judgment and analysis1, the instrument value: Yu Bo 450nm ELISA od read the hole on the instrument2, to the OD value for the longitudinal axis (y), corresponding HLA-B27 standard concentration as the abscissa (x), do the corresponding curve, HLA-B27 content in the sample can be according to its OD value by standard curve conversion out corresponding concentration.3, the detection value range: 0-8.0IU/ml4, sensitivity: 0.01 IU/ml人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Elisa kit test rules:1, to ensure the accuracy of the gun, the error can not be more than 2%. Available water and electronic balances are determined. But it's better to have professional personnel to correct it.2, to be equipped with 20ul, 50ul, 100ul, 1000ul and a volley. Draw different liquids, to replace the gun head. Even when the standard is drawn.1, 3 hours before the experiment to remove the kit from the refrigerator, so that a variety of reagents are restored to room temperature, in order to make the results more stable.4, the experiment, to make the substrate to avoid light storage.5, with the gun to draw the liquid speed can not be too fast, so as not to produce bubbles and to absorb the amount is not accurate.6, when the liquid, to use the range and the need to close the gun to suck, reduce the error.7, when the liquid is added to the enzyme standard hole, the liquid contact of the liquid drop and the hole wall of the gun head can be avoided by avoiding the contact of the liquid drop and the hole wall in the gun head.8, after all the liquid added, the enzyme labeled plate on the table in parallel to gently shake 30 seconds, mixed with liquid. Can also use the shaking function of the enzyme standard instrument.9, should try to do two experiments, so as to ensure the accuracy of the data. 10, the results have questions about the sample to be confirmed by other methods.人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Operation steps1 before use, all reagents fully mixed. Do not allow liquid to produce a large number of bubbles, so as to avoid adding a large number of bubbles, resulting in the addition of the error.2 according to the number of samples to be measured and the number of standard products to determine the number of required. Each standard and blank hole is recommended to do the hole. Each sample can be made according to its own quantity, and can be used as a hole in the hole.3 to join the dilution of the standard 50ul in the reaction hole, to add the sample to be measured in the reaction hole 50ul. The biotin labeled antibody was immediately added to the 50ul. Cover the membrane plate, gently oscillating mixing, 37 degrees Celsius incubation 1 hours.4 left hole liquid, each hole filled with washing liquid, oscillating 30 seconds off the washing liquid, pat dry with absorbent paper. Repeat this operation 3 times. If the washing machine with washing, washing times increased once.5 each hole to join 80ul affinity chain enzyme -HRP, gently oscillating mixing, 37 degrees Celsius incubation 30 minutes.6 left hole liquid, each hole filled with washing liquid, oscillating 30 seconds off the washing liquid, pat dry with absorbent paper. Repeat this operation 3 times. If the washing machine with washing, washing times increased once.7 each hole to join the substrate A, B each 50ul, gently oscillating mixing, 37 degrees Celsius incubation 10 minutes. Avoid light.8 remove the enzyme labeled plate, quickly join the 50ul terminator, add the end of the liquid should be measured immediately after the results.9 OD value at the wavelength of 450nm was measured by hole.limitThe result of the above 6 standard is nonlinear, and the result can not be obtained accurately according to the standard curve.人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒注意事项:1.试剂盒从冷藏环境中取出应在室温平衡15-30分钟后方可使用,酶标包被板开封后如未用完,板条应装入密封袋中保存。

酶联免疫分析试剂盒说明书

酶联免疫分析试剂盒说明书

人chemerin酶联免疫分析试剂盒使用说明书本试剂盒仅供研究使用预期应用ELISA法定量测定人血清、血浆或其它相关液体中chemerin含量。

实验原理本试剂盒应用双抗体夹心酶标免疫分析法测定标本中chemerin水平。

用纯化的抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入chemerin抗原、生物素化的抗人chemerin抗体、HRP标记的亲和素,经过彻底洗涤后用底物TMB显色。

TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。

颜色的深浅和样品中的chemerin呈正相关。

用酶标仪在450nm波长下测定吸光度(OD值),计算样品浓度。

试剂盒组成及试剂配制1.酶联板:一块(96孔)2.标准品(冻干品):2瓶,每瓶临用前以样品稀释液稀释至1ml,盖好后静置10分钟以上,然后反复颠倒/搓动以助溶解,其浓度为20,000pg/ml,做系列倍比稀释后,分别稀释10,000pg/ml,5,000pg/ml,2,500pg/ml,1,250pg/ml,625pg/ml,312.5pg/ml,156pg/ml,样品稀释液直接作为标准浓度0pg/ml,临用前15分钟内配制。

如配制10,000pg/ml标准品:取0.5ml20,000pg/ml的上述标准品加入含有0.5ml样品稀释液的Eppendorf管中,混匀即可,其余浓度以此类推。

3.样品稀释液:1×20ml/瓶。

4.检测稀释液A:1×10ml/瓶。

5.检测稀释液B:1×10ml/瓶。

6.检测溶液A:1×120ul/瓶(1:100)临用前以检测稀释液A1:100稀释,稀释前根据预先计算好的每次实验所需的总量配制(每孔100ul),实际配制时应多配制0.1-0.2ml。

如1ul检测溶液A加99ul检测稀释液A的比例配制,轻轻混匀,在使用前一小时内配制。

7.检测溶液B:1×120ul/瓶(1:100)临用前以检测稀释液B1:100稀释。

promega 实时荧光 mt 细胞活力检测试剂盒说明书

promega 实时荧光 mt 细胞活力检测试剂盒说明书

G9711, G9712 and G97132021版 CTM645原英文技术手册TM645中文说明书适用产品目录号: W6010, W6011 和 W6012Lumit™ Human IL-1βImmunoassay普洛麦格(北京)生物技术有限公司Promega (Beijing) Biotech Co., Ltd 地址:北京市东城区北三环东路36号环球贸易中心B座907-909电话:************网址:技术支持电话:400 810 8133(手机拨打)技术支持邮箱:*************************CTM6452021制作1所有技术文献的英文原版均可在/ protocols 获得。

请访问该网址以确定您使用的说明书是否为最新版本。

如果您在使用该试剂盒时有任何问题,请与Promega 北京技术服务部联系。

电子邮箱:*************************1. 产品描述 (2)2. 产品组分和储存条件 (4)3. 开始实验前 (5)4. 培养细胞的直接(无转移)方案 (7)4. A. 细胞铺板和处理 (7)4. B. 制备人IL-1β标准品稀释液 (8)4. C. 将5X抗hIL-1β抗体混合物添加至检测孔 (9)4. D. 将 Lumit™检测试剂B添加至检测孔 (10)5. 可选样品转移方案 (11)5. A. 细胞铺板和处理 (11)5. B. 制备人IL-1β标准品稀释液 (12)5. C. 将2X抗hIL-1β抗体混合物添加至样品孔 (13)5. D. 将 Lumit™检测试剂B添加至样品孔 (14)6. 结果计算 (15)7. 代表性数据 (15)8. 疑难解答 (20)9. 附录 (21)9. A. 加工后的人IL-1β选择性的示例数据 (21)9. B. 炎症小体抑制多重检测的示例数据 (22)9. C. 参考文献 (23)9. D. 相关产品 (24)Lumit™ Human IL-1β Immunoassay普洛麦格(北京)生物技术有限公司Promega (Beijing) Biotech Co., Ltd 地址:北京市东城区北三环东路36号环球贸易中心B座907-909电话:************网址:技术支持电话:400 810 8133(手机拨打)技术支持邮箱:*************************CTM6452021制作21. 产品描述Lumit™ Human IL-1β Immunoassay(a,b)是可用于检测从细胞中释放的白介素1β(IL-1β)的均质生物发光检测试剂盒,操作过程中无需样品转移或洗涤。

人 BMP-2 ELISA试剂盒说明书

人 BMP-2 ELISA试剂盒说明书

人BMP-2ELISA试剂盒Human BMP-2ELISA kitCat#:EHC172尊敬的客户,感谢您选用本公司QuantiCyto®ELISA系列产品。

本产品选用世界著名生产厂家的原料,采用专业体外诊断试剂生产技术制造,仅供科研使用。

本产品可检测血清、血浆、细胞培养上清液、灌洗液、尿液、羊水、腹水、脑脊液、胸腔积液、组织匀浆液等多种类型样本中天然和重组人BMP-2浓度,具体适用样本请咨询。

使用前请仔细阅读说明书并检查试剂组分。

如有疑问,请联系欣博盛生物科技有限公司。

Email:**********************,全国服务热线: 4006800892。

QuantiCyto ®EHC172Human BMP-22试剂盒组成:名称48T 96T 抗体预包被酶标板8×68×12冻干标准品5ng /支×2支5ng /支×3支标准品&标本通用稀释液12ml×1瓶20ml×1瓶浓缩生物素化抗体1支(规格见标签)1支(规格见标签)生物素化抗体稀释液10ml×1瓶16ml×1瓶浓缩酶结合物1支(规格见标签)1支(规格见标签)酶结合物稀释液10ml×1瓶16ml×1瓶浓缩洗涤液20×25ml×1瓶50ml×1瓶显色底物(TMB )6ml×1瓶12ml×1瓶反应终止液具腐蚀性6ml×1瓶12ml×1瓶封板胶纸3张6张产品说明书1份1份储存条件:未开封完整试剂盒4℃保存,请在保质期内使用。

已开封试剂盒抗体包被板条未用完的板条放回带拉链铝箔袋,封好口。

4℃条件下可储存1个月左右。

标准品冻干粉-20℃可储存6个月左右。

稀释后的标准品使用后请丢弃。

浓缩生物素化抗体浓缩液4℃可储存1个月左右,稀释后即用即弃。

浓缩酶结合物(避光)标准品&标本通用稀释液4℃条件下,可储存1个月左右。

Elabscience 人中性粒细胞明胶酶相关脂质运载蛋白(NGAL)酶联免疫吸附测定试剂盒使用说明

Elabscience 人中性粒细胞明胶酶相关脂质运载蛋白(NGAL)酶联免疫吸附测定试剂盒使用说明

(本试剂盒仅供体外研究使用,不用于临床诊断!)产品货号:E-EL-H6127产品规格:96T/48T/24T/96T*5Elabscience®人中性粒细胞明胶酶相关脂质运载蛋白(NGAL)酶联免疫吸附测定试剂盒使用说明书Human NGAL(Neutrophil Gelatinase Associated Lipocalin) ELISA Kit使用前请仔细阅读说明书。

如果有任何问题,请通过以下方式联系我们:销售部电话************,************技术部电话************具体保质期请见试剂盒外包装标签。

请在保质期内使用试剂盒。

联系时请提供产品批号(见试剂盒标签),以便我们更高效地为您服务。

用途该试剂盒用于体外定量检测人血清、血浆或其它相关生物液体中NGAL浓度。

检测原理本试剂盒采用双抗体夹心ELISA法。

用抗人NGAL抗体包被于酶标板上,实验时样品(或标准品)中的人NGAL会与包被抗体结合。

后依次加入生物素化的抗人NGAL抗体和辣根过氧化物酶标记的亲和素,抗人NGAL抗体与结合在包被抗体上的人NGAL结合,生物素与亲和素特异性结合而形成免疫复合物,游离的成分被洗去。

加入显色底物(TMB),TMB在辣根过氧化物酶的催化下呈现蓝色,加终止液后变成黄色。

用酶标仪在450 nm波长处测OD值,NGAL浓度与OD450值之间呈正比,通过绘制标准曲线计算出样品中NGAL 的浓度。

试剂盒组成及保存未拆封的试剂盒可在2-8℃保存一周;如果一周以后才使用试剂盒,请拆开试剂盒并按照下表中的条件分别保存各组分。

试剂体积以实际发货版说明书为准。

相关试剂在分装时会比标签上试验所需自备物品1.酶标仪(450 nm波长滤光片)2.高精度移液器,EP管及一次性吸头:0.5-10μL, 2-20μL, 20-200μL, 200-1000μL3.37℃恒温箱,4.双蒸水或去离子水5.吸水纸6.加样槽样品收集方法(具体处理方法可参考官网:/List-detail-241.html) 1.血清:全血样品于室温放置1小时或2-8℃过夜后于2-8℃,1000×g离心20分钟,取上清即可检测。

大鼠胃动素ELISA试剂盒说明书

大鼠胃动素ELISA试剂盒说明书

大鼠胃动素(Motilin)ELISA试剂盒(用于血清、血浆、细胞培养上清液和其它生物体液内)原理本实验采用双抗体夹心ABC-ELISA法。

用抗大鼠Motilin单抗包被于酶标板上,标准品和样品中的Motilin与单抗结合,加入生物素化的抗大鼠Motilin,形成免疫复合物连接在板上,辣根过氧化物酶标记的Streptavidin与生物素结合,加入底物工作液显蓝色,最后加终止液硫酸,在450nm处测OD值,Motilin 浓度与OD值成正比,可通过绘制标准曲线求出标本中Motilin浓度。

试剂盒组成(2-8℃保存)酶标板(Coated Wells)96孔酶标抗体工作液(Enzyme Conjugate)12ml10×标本稀释液(Sample Buffer)12ml20×浓缩洗涤液(Wash Buffer)50ml标准品(Standards):40ng/瓶2瓶底物工作液(TMB Solution)12ml第一抗体工作液(Biotinylated Antibody)12ml终止液(Stop Solution)12ml 准备试剂与收集血样1. 收集标本:血清、血浆(EDTA、柠檬酸盐、肝素抗凝)、细胞培养上清液、组织匀浆等尽早检测,2-8℃保存48小时;更长时间须冷冻(-20℃或-70℃)保存,避免反复冻融。

2. 标准品液配制:使用前加入1ml蒸馏水混匀,配成40ng/ml的溶液。

设标准管8管,第一管加标本稀释液900ul,第二至第八管加入标本稀释液500ul。

在第一管中加入40ng/ml的标准品溶液100ul混匀后用加样器吸出500ul,移至第二管。

如此反复作对倍稀释,从第七管中吸出500ul弃去。

第八管为空白对照。

3. 10×标本稀释液用蒸馏水作1:10倍稀释(示例:1ml浓稀释液+9ml蒸馏水)。

4. 洗涤液:用重蒸水1:20稀释(示例:1ml浓缩洗涤液加入19ml的重蒸水)检测程序1. 加样:每孔各加入标准品或待测样品100ul,将反应板充分混匀后置37℃120分钟。

ELISA 检测试剂盒 说明书

ELISA 检测试剂盒 说明书

本试剂盒只能用于科学研究,不得用于医学诊断小鼠小鼠((MouseMouse))肿瘤坏死因子可溶性受体肿瘤坏死因子可溶性受体ⅠⅠ(TNFsR-TNFsR-ⅠⅠ)ELISA检测试剂盒使用说明书检测原理试剂盒采用双抗体一步夹心法酶联免疫吸附试验(ELISA)。

往预先包被肿瘤坏死因子可溶性受体Ⅰ(TNFsR-Ⅰ)抗体的包被微孔中,依次加入标本、标准品、HRP标记的检测抗体,经过温育并彻底洗涤。

用底物TMB显色,TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。

颜色的深浅和样品中的肿瘤坏死因子可溶性受体Ⅰ(TNFsR-Ⅰ)呈正相关。

用酶标仪在450nm波长下测定吸光度(OD值),计算样品浓度。

样品收集、处理及保存方法1.血清:使用不含热原和内毒素的试管,操作过程中避免任何细胞刺激,收集血液后,3000转离心10分钟将血清和红细胞迅速小心地分离。

2.血浆:EDTA、柠檬酸盐或肝素抗凝。

3000转离心30分钟取上清。

3.细胞上清液:3000转离心10分钟去除颗粒和聚合物。

4.组织匀浆:将组织加入适量生理盐水捣碎。

3000转离心10分钟取上清。

5.保存:如果样本收集后不及时检测,请按一次用量分装,冻存于-20℃,避免反复冻融,在室温下解冻并确保样品均匀地充分解冻。

自备物品1.酶标仪(450nm)2.高精度加样器及枪头:0.5-10uL、2-20uL、20-200uL、200-1000uL3.37℃恒温箱操作注意事项1.试剂盒保存在2-8℃,使用前室温平衡20分钟。

从冰箱取出的浓缩洗涤液会有结晶,这属于正常现象,水浴加热使结晶完全溶解后再使用。

2.实验中不用的板条应立即放回自封袋中,密封(低温干燥)保存。

3.浓度为0的S0号标准品即可视为阴性对照或者空白;按照说明书操作时样本已经稀释5倍,最终结果乘以5才是样本实际浓度。

4.严格按照说明书中标明的时间、加液量及顺序进行温育操作。

5.所有液体组分使用前充分摇匀。

人runt相关转录因子2 (runx2)elisa试剂盒说明书

人runt相关转录因子2 (runx2)elisa试剂盒说明书

人Runt相关转录因子2 (RUNX2)酶联免疫吸附测定试剂盒使用说明书产品编号:E-EL-H0925(本试剂盒仅供体外研究使用、不用于临床诊断!)声明:尊敬的客户,感谢您选用本公司的产品。

本产品选用世界著名生产厂家的原料,采用专业ELISA kit生产技术制造。

适用于体外定量检测人血清、血浆、组织匀浆或细胞培养上清液中天然和重组RUNX2浓度。

使用前请仔细阅读说明书并检查试剂组分!如有疑问,请及时联系伊莱瑞特生物科技有限公司。

*: [96T/48T](打开包装后请及时检查所有物品是否齐全完整)检测原理:本试剂盒采用双抗体夹心ELISA法。

用抗人RUNX2抗体包被于酶标板上,实验时标本或标准品中的RUNX2会与包被抗体结合,游离的成分被洗去。

依次加入生物素化的抗人RUNX2抗体和辣根过氧化物酶标记的亲和素。

抗人RUNX2抗体与结合在包被抗体上的人RUNX2结合、生物素与亲和素特异性结合而形成免疫复合物,游离的成分被洗去。

加入显色底物(TMB),TMB在辣根过氧化物酶的催化下现蓝色,加终止液后变黄。

用酶标仪在450nm波长处测OD值,RUNX2浓度与OD450值之间呈正比,通过绘制标准曲线求出标本中RUNX2的浓度。

标本收集:1.血清:全血标本于室温放置2小时或4℃过夜后于1000×g离心20分钟,取上清即可检测,收集血液的试管应为一次性的无热原,无内毒素试管。

2.血浆:抗凝剂推荐使用EDTA.Na2,标本采集后30分钟内于1000×g离心15分钟,取上清即可检测。

避免使用溶血,高血脂标本。

3.组织匀浆:用预冷的PBS (0.01M, pH=7.4)冲洗组织,以去除残留血液(匀浆中裂解的红细胞会影响测量结果),称重后将组织剪碎。

将剪碎的组织与对应体积的PBS(一般按1:9的重量体积比,比如1g的组织样本对应9mL的PBS,具体体积可根据实验需要适当调整,并做好记录。

推荐在PBS中加入蛋白酶抑制剂)加入玻璃匀浆器中,于冰上充分研磨。

人饥饿素ghrelinELISA试剂盒使用说明书

人饥饿素ghrelinELISA试剂盒使用说明书

人饥饿素 (ghrelin)ELISA试剂盒使用说明书我司ELISA试剂盒品质保证,质量优,价格实惠,是您生物实验的首选,如有需要可与我司销售人员联系。

本试剂仅供研究使用目的:本试剂盒用于测定人血清,血浆及相关液体样本中人饥饿素(ghrelin)含量。

实验原理:本试剂盒应用双抗体夹心法测定标本中人饥饿素(ghrelin)水平。

用纯化的人饥饿素(ghrelin)抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入饥饿素(ghrelin),再与HRP标记的饥饿素(ghrelin)抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。

TMB在HRP酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。

颜色的深浅和样品中的饥饿素(ghrelin)呈正相关。

用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人饥饿素(ghrelin)浓度。

试剂盒组成:1.血清:室温血液自然凝固10-20分钟,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如出现沉淀,应再次离心。

2.血浆:应根据标本的要求选择EDTA、者柠檬酸钠或肝素作为抗凝剂,混合10-20分钟后,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如有沉淀形成,应该再次离心。

3.尿液:用无菌管收集,离心20分钟左右(2000-3000转/分)。

仔细收集上清,保存过程中如有沉淀形成,应再次离心。

胸腹水、脑脊液参照实行。

4.细胞培养上清:检测分泌性的成份时,用无菌管收集。

离心20分钟左右(2000-3000转/分)。

仔细收集上清。

检测细胞内的成份时,用PBS(PH7.2-7.4)稀释细胞悬液,细胞浓度达到100万/ml左右。

通过反复冻融,以使细胞破坏并放出细胞内成份。

离心20分钟左右(2000-3000转/分)。

仔细收集上清。

保存过程中如有沉淀形成,应再次离心。

5.组织标本:切割标本后,称取重量。

人血栓调节蛋白(TM)ELISA试剂盒操作步骤

人血栓调节蛋白(TM)ELISA试剂盒操作步骤

人血栓调整蛋白(TM)ELISA试剂盒操作步骤产品名称:人血栓调整蛋白(TM)ELISA试剂盒英文名称:Human leukocyte antigen G,HLAG ELISA kit试验原理本试剂盒是固相夹心法酶联免疫吸附试验(ELISA).已知待测物质浓度的标准品、未知浓度的样品加入微孔酶标板内进行检测。

先将待测物质和生物素标记的抗体同时温育。

洗涤后,加入亲和素标记过的HRP。

再经过温育和洗涤,去除未结合的酶结合物,然后加入底物A、B,和酶结合物同时作用。

产生颜色。

颜色的深浅和样品中指标的浓度呈比例关系。

试剂盒内容及其配制:试剂盒成份96孔配置48孔配置96/48人份酶标板1块板(96T)半块(48T)塑料膜板盖1块半块标准品:1瓶(1.0ml)1瓶(0.5ml)空白对比1瓶(1.0ml)1瓶(0.5ml)标准品稀释缓冲液1瓶(8.0ml)1瓶(4.0ml)生物素标记抗体1瓶(8.0ml)1瓶(4.0ml)亲和链酶素HRP 1瓶(12ml)1瓶(6.0ml)洗涤缓冲液1瓶(20ml)1瓶(10ml)底物A1瓶(6.0ml)1瓶(3.0ml)底物B1瓶(6.0ml)1瓶(3.0ml)停止液1瓶(6.0ml)1瓶(3.0ml)自备料子:1.蒸馏水。

2.加样器:5ul、10ul、50ul、100ul、200、500ul、1000ul。

3.振荡器及磁力搅拌器等。

样品收集、处置及保管方法:1、血清操作过程中躲避任何细胞刺激。

使用不含热原和内毒素的试管。

收集血液后,1000×g离心10分钟将血清和红细胞快速当心地分别。

2、血浆EDTA、柠檬酸盐、肝素血浆可用于检测。

1000×g离心30分钟去除颗粒。

3、细胞上清液1000×g离心10分钟除颗粒和聚合物。

4、组织匀浆将组织加入适量生理盐水捣碎。

1000×g离心10分钟,取上清液5、保管假如样品不立刻使用,应将其分成小部分70 ℃保管,躲避反复冷冻。

ELISA_kit使用说明书

ELISA_kit使用说明书

微囊藻毒素ELISA检测试剂盒使用说明书Microcystin Plate Kit一、基本原理酶联免疫(ELISA)是免疫酶技术的一种,是将抗原抗体反应的特异性与酶反应的敏感性相结合而建立的一种新技术。

ELISA的技术原理是:将酶分子与抗体(或抗原)结合,形成稳定的酶标抗体(或抗原)结合物,当酶标抗体(或抗原)与固相载体上的相应抗原(或抗体)结合时,即可在底物溶液参与下,产生肉眼可见的颜色反应,颜色的深浅与抗原或抗体的量成比例关系,使用ELISA 检测仪,即酶标仪,测定其吸收值可做出定量分析。

此技术具有特异、敏感、结果判断客观、简便和安全等优点,日益受到重视,不仅在微生物学中应用广,而且也被其他学科领域广为采用。

本试剂盒工作原理如下图所示。

二、已配试剂ELISA试剂盒中配备以下条目:1、96孔已包被好的酶标板2、1只阴性对照即0孔溶液3、标准1:0.1ng/mL的MC-LR标准溶液4、标准2:0.2ng/mL的MC-LR标准溶液5、标准3:0.5ng/mL的MC-LR标准溶液6、标准4:1ng/mL的MC-LR标准溶液7、标准5:2.5ng/mL的MC-LR标准溶液8、1瓶溶液1 (单抗)9、1只溶液2(二抗稀释液)10、一只二抗(小管乘装)11、1瓶溶液3(底物溶液)12、1瓶溶液4 (终止液)13、1袋固体PBS(配置洗涤液用)三、需配器材及试剂除试剂盒内的物品外,还需配备以下器材和试剂:1、酶标仪(若可能,可配有洗板机)2、微量移液器(100 L)(若可能,可配8道或12道微量移液器)3、吸管、橡皮吸头(洗板时用,若有洗板机,无需准备此项)4、纯水(用于配置洗涤液)5、玻璃瓶(盛装洗涤液)6、记时器(准确控制每步操作时间)7、封口膜(防止孔内液体挥发)四、酶标二抗的配置将小管中二抗用溶液2按1:3000稀释,充分溶解混匀,现用现配。

五、洗涤液的配置将固体PBS以纯水配置成1L溶液,加1mL Tween 20(PBS-T, pH7.4-7.6),室温保存。

重症监护室患儿血清胃泌素和胃动素指标的变化及意义研究

重症监护室患儿血清胃泌素和胃动素指标的变化及意义研究

·4094··论著·重症监护室患儿血清胃泌素和胃动素指标的变化及意义研究彭昊*,龙博文,肖晨,邓敏,张翼【摘要】 背景 血清胃泌素(GAS)、胃动素(MTL)对胃肠运动功能具有重要的调节作用。

危重症患儿发生胃肠功能障碍或胃肠功能衰竭是应激后多脏器功能衰竭的诱因,因而监测血清GAS、MTL 的水平具有重要意义。

目的 探讨重症监护室患儿血清GAS、MTL 的变化及其临床监测意义。

方法 选取2018年1月至2019年9月萍乡市妇幼保健院儿童重症监护室300例住院患儿。

采用放射免疫法测定患儿血清GAS、MTL 水平。

比较治疗前后不同病情严重程度、治疗前不同疾病类型、治疗前不同胃肠功能状态患儿血清GAS、MTL 水平。

结果 治疗前及治疗后极危重患儿血清GAS、MTL 水平高于非危重、危重患儿(P<0.05);治疗后非危重、危重、极危重患儿血清GAS、MTL 水平与其治疗前比较,差异均有统计学意义(P<0.05)。

不同疾病类型患儿血清GAS、MTL 水平比较,差异无统计学意义(P>0.05)。

胃肠功能障碍、胃肠功能衰竭患儿血清GAS 水平高于无胃肠功能障碍患儿(P<0.05),胃肠功能衰竭患儿血清GAS 水平高于胃肠功能障碍患儿(P<0.05);胃肠功能障碍患儿血清MTL 水平高于无胃肠功能障碍、胃肠功能衰竭患儿(P<0.05),无胃肠功能障碍患儿血清MTL 水平高于胃肠功能衰竭患儿(P<0.05)。

结论 不同病情严重程度、胃肠功能状态的患儿血清GAS、MTL 变化是不同的,临床可通过监测患儿血清GAS、MTL 变化来评估患儿病情严重程度、胃肠功能状态及临床治疗的效果。

【关键词】 胃肠疾病;重症监护病房,儿科;胃泌素类;胃动素;儿童,住院;病人病情;胃肠功能【中图分类号】 R 57 【文献标识码】 A DOI:10.12114/j.issn.1007-9572.2021.01.025彭昊,龙博文,肖晨,等.重症监护室患儿血清胃泌素和胃动素指标的变化及意义研究[J]. 中国全科医学,2021,24(32):4094-4098,4109. []PENG H,LONG B W,XIAO C,et al. Changes and significance of serum Gastrin and Motilin in the blood of children in pediatric intensive care unit[J]. Chinese General Practice,2021,24(32):4094-4098,4109.Changes and Significance of Serum Gastrin and Motilin in the Blood of Children in Pediatric Intensive Care Unit PENG Hao *,LONG Bowen ,XIAO Chen ,DENG Min ,ZHANG YiPediatric Intensive Care Unit ,Pingxiang Maternal and Child Care Hospital ,Pingxiang 337000,China*Corresponding author :PENG Hao ,Associate chief physician ;E-mail :【Abstract 】 Background Serum gastrin(GAS) and motilin(MTL) play important roles in regulatinggastrointestinal motor function. Gastrointestinal dysfunction or gastrointestinal failure in critical illness is considered to be the inducement of multiple organ failure(MOF) after stress,so it is of great significance to monitor the levels of GAS and MTL. Objective To analyze the concentration changes of GAS and MTL in the blood of different children in pediatric intensive care unit(PICU) and their clinical monitoring significance. Methods Three hundred hospitalized children in Pediatric Intensive Care Unit of Pingxiang Maternal and Child Care Hospital from January 2018 to September 2019 were enrolled. The levels of GAS and MTL in the blood of children were measured by radioimmunoassay. The levels of GAS and MTL in blood of children with different disease severity(before and after treatment),different disease types and different gastrointestinal function states were compared. Results The levels of GAS and MTL of extremely critically ill children before and after treatment were higher than those of non-critically ill and critically ill children (P<0.05);after treatment,the GAS and MTL levels of non-critical,critically ill,and extremely critically ill children were compared with those before treatment,and the differences were statistically significant (P<0.05). There was no significant difference in the levels of GAS and MTL in children with different disease types (P>0.05). The level of GAS in children with gastrointestinal dysfunction and gastrointestinal failure was higher than that of children without gastrointestinal dysfunction,and the level of GAS in children with gastrointestinal failure was higher than that337000 江西省萍乡市妇幼保健院儿童重症监护室*本文数字出版日期:2021-09-16扫描二维码查看原文+培训视频·4095·E-mail:******************.cn 血清胃泌素(gastrin,GAS)、胃动素(motilin,MTL)是胃肠道正常分泌的激素,其对胃肠运动功能具有重要的调节作用。

1、ELISA 试剂盒使用说明书(5 孔板格式)

1、ELISA 试剂盒使用说明书(5 孔板格式)

ELISA kitInstruction Manual5-plate formatJuly, 2006For research use only.Not for use in diagnostic or therapeutic procedures.ContentsAbbreviations 2 Introduction 3 Contents of the kit 4 Hazard information 4 Materials and reagents required but not provided 4 Working solutions 4 General procedure 5 Coating antibodies 5 Blocking 5 Test samples and standards 5 Biotinylated detector antibodies 5 SPP conjugate 5 Substrate 5 Cytokine standards 6 Storage kit reagents 6 Directions for washing 7 Trouble shooting 7 References 8AbbreviationsAPC Antigen presenting cellsBSA Bovine serum albuminCD Cluster of differentiationCSB Cytokine stabilization bufferDMSO Dimethyl sulfoxideELISA Enzyme linked immunosorbent assayGM-CSF Granulocyte-Macrophage Colony Stimulating Factor IFN InterferonIL InterleukinMHC Major histocompatibility complexOD Optical densityPB Phosphate bufferPBS Phosphate buffered salinePBST PBS containing 0.05% Tween-20PBST-B PBST containing 0.5% bovine serum albuminSPP Streptavidin-HRP polymerT h T helper subsetTMB TetramethylbenzidineTNF Tumor necrosis factorIntroductionCytokines are a group of regulatory proteins critically involved in many physiological processes such as immune recognition, cell differentiation and cell proliferation. They have been identified in many vertebrate species and are produced by a variety of different cell types. Cytokines are usually produced transiently and locally, acting in a paracrine or autocrine manner. They interact with high affinity cell surface receptors specific for each cytokine or cytokine group and are active at very low concentrations mostly in the picogram range.It is well known now that the type of an antigen-specific immune response largely depends on the selection or preferential activation of defined CD4+T cell subsets (i.e. T h1 and T h2). Activation of these subsets is characterized by the secretion of distinct patterns of cytokines. T h1, but not T h2 cells, primarily secrete IL-2 and IFN-γ while T h2, but not T h1 cells, produceIL-4, IL-5, IL-6, IL-10 and IL-13. Other cytokines, such as TNF-α and GM-CSF are produced by both T h subsets. In addition, the production of IL-12 and IL-10, produced by antigen presenting cells (APC) such as macrophages and dendritic cells, critically contributes to the preferential expansion of T h1- or T h2-type of cells. For instance, early production of IL-12 is considered essential for the development of T h1 cells. On the other hand, the absence or low concentrations of IL-12 and IFN-γ in the early phase of an immune response and concomitant production of IL-4 by cells of the mastcell/basophil lineage or T cells themselves is known to favor the development of T h2 cells. In addition to their regulatory effects on T h subset differentiation, the cytokines released by the two types of T h cells also produce distinct effector functions. For instance, IL-4 and IFN-γhave differential or antagonistic activities on immunoglobulin isotype selection or MHC class II expression. Therefore, the properties of an immune response can be best studied by determining the amounts of cytokines produced by the responding T cells and APC.Contents of the kitItemsQuantity(5-plate format)StorageconditionsCoating antibodies 1 vial 4ºC (39ºF)Cytokine standard 5 vials 4ºC (39ºF)Biotinylated detector antibodies 1 vial 4ºC (39ºF)SPP conjugate (Streptavidin-HRP polymer) 1 vial ≤ -20ºC (-4°F)TMB substrate tablets 5 4ºC (39ºF)Substrate buffer capsules 5 Rt*BSA stock solution (10%) 2 vials (24 ml) 4ºC (39ºF)Cytokine stabilization buffer (CSB)** 1 vial (5 ml) 4ºC (39ºF)Tween-20 1 vial (5 ml) Rt*ELISA plates8 Rt*Adhesive cover slips 10 Rt** Room temperature** For serum and plasma samples only; see under “Test samples and standards”Materials and reagents required but not provided•PB stock: dissolve 96.0 g Na2HPO4.2H2O plus 17.5 g KH2PO4in 1.0 L distilled water and adjust pH to 7.4•Sterile distilled water•H2SO4•Dimethyl sulfoxide (DMSO)•Pipetting devices for the accurate delivery of volume required for the assay performance •Plate washer: automated or manual (squirt bottle, manifold dispenser, etc)•Reading device for microtiter-plate set to 370, 450 and/or 655 nmWorking solutions•PBS: add 10 ml PB stock and 8.8 g NaCl to 1 L distilled water. Adjust pH to 7.4.Alternatively, use commercially available liquid PBS from Invitrogen or other suppliers.Do not use commercially available PBS tablets for the preparation of the coating solution (the filler in the tablets interferes with the coating process).•PBST: 0.5 ml Tween-20 dissolved in 1 L PBS.•PBST-B: 2 ml BSA stock solution (10%) added to 38 ml PBST.•Blocking buffer: 2 ml BSA stock solution (10%) added to 18 ml PBS (for 1 ELISA plate). •Substrate buffer: the contents of one capsule is dissolved in 100 ml distilled water (takes approximately 5 minutes). For optimal performance, the buffer solution should be used within60 minutes.•Stopping solution: 2 M H2SO4TMB (tetramethylbenzidine) and sodium perborate (in substrate buffer)General procedureCoating antibodies•Reconstitute the lyophilized antibodies by injecting 250 µl of sterile distilled water into the vial. Mix the solution gently for approximately 15 seconds and allow it to stand for 2 minutes at room temperature. Avoid vigorous shaking. To coat 96 wells of an ELISA plate 50 µl is pipetted out of the vial (or use a frozen aliquot of 50 µl; see "Storage kit reagents") and added to 5 ml PBS. Mix gently.•Add 50 µl of diluted antibody solution to each well of the ELISA plate and fill up to 100 µl with PBS.•Seal the plate to prevent evaporation.Incubate overnight at 4ºC or alternatively 1 to 2 hours at 37ºC.Blocking•Remove the coating antibody solution and wash the wells at least six times with PBST. •Add 200 µl of blocking buffer.•Seal the plate and incubate at 37ºC for 1 hour.Test samples and standards•Remove the blocking buffer but do not wash.•Add 1/20 volume of CSB to serum or plasma samples but not to other samples such as cell culture supernatants; CSB inhibits the degradation of cytokines in pure serum or plasma. •Dilute standards and test samples in an appropriate diluent (see “Cytokine standards”). •Add 100 µl to each well.•Seal the plate and incubate at 37ºC for 2 hours or overnight at 4ºC.Biotinylated detector antibodies•Remove test samples/standards and wash the wells at least six times with PBST. •Reconstitute the lyophilized antibodies by injecting 0.5 ml of sterile distilled water into the vial. Mix the solution gently for approximately 15 seconds and allow it to stand for 2 minutes at room temperature. Avoid vigorous shaking. Hundred microliter is pipetted out of the vial (or use a frozen aliquot of 100 µl; see "Storage kit reagents") and added to 10 ml PBST-B.Mix gently.•Add 100 µl of diluted antibody solution to each well.•Seal the plate and incubate at 37ºC for 1 hour.SPP conjugate•Remove detector antibody solution and wash the wells at least six times with PBST. •Reconstitute the contents of the vial by injecting 0.5 ml of sterile distilled water into the vial.Mix the solution gently for approximately 15 seconds and allow it to stand for 1 minute at room temperature. Avoid vigorous shaking. Hundred microliter is pipetted out of the vial (or use a frozen aliquot of 100 µl; see "Storage kit reagents") and added to 10 ml PBST-B. Mix gently.•Add 100 µl to each well.•Seal the plate and incubate at 37ºC for 1 hour.Substrate•Remove SPP conjugate and wash the wells at least six times with PBST.•Dissolve one TMB tablet in 1.0 ml DMSO (vortex at high speed for 5 minutes for complete dissolution)and than add 10 ml substrate buffer.•Mix thoroughly and immediately dispense 100 µl into each well. Leave the plate on the laboratory bench at room temperature (color development between 10 and 30 minutes).The substrate produces a soluble end-product that is blue in color and can be read spectrophotometrically at 370 or 655 nm. The reaction can be stopped by adding 50 µl of2 M H2SO4 (resulting in a yellow solution which can be read at 450 nm).Cytokine standardsFor maximum recovery, the vial with lyophilized cytokine standard should be reconstituted in 0.5 ml distilled water and allowed to stand for 1 minute at room temperature. Thereafter, the reconstituted cytokine standard (stock solution) is placed on melting ice and is immediately diluted as indicated below (preferentially within one hour). Use vials with cytokine standards only once.Please note that temperature of buffers and standard solution(s) should now be kept at 0-4ºC until use in the ELISA.The total amount of cytokine standard is indicated on the label of the vial (ng/vial). After reconstitution in 0.5 ml water, the concentration (ng/ml) will become twice the amount on the label [e.g. amount on label is 4.8 ng/vial; after reconstitution, the concentration becomes9.6 ng/ml = 9600 pg/ml].The standard stock solution is diluted to 320 pg/ml in PBST-B (highest concentration cytokine to be used in the standard range).The linear region of the cytokine standard curve is now obtainable in a series of two-fold dilutions in PBST-B ranging from 320 to 5 pg/ml. Always include a blank control (PBST-B only) in the standard range.Before establishing the standard curve, the OD value of the blank control (OD.bl) is subtracted from the measured OD values of the different standard solutions. The standard curve is now plotted as the standard cytokine concentration versus the corresponding (measured) OD value minus OD.bl. In addition, the actual OD values of the test samples are determined by subtracting OD.bl from the measured OD values.The concentration of the cytokine in the test sample can then be interpolated from the standard curve. It is useful to prepare a series of dilutions of the unknown test sample to assure that the OD will fall in the linear portion of the standard curve.Note 1: The OD value measured for the blank control (OD.bl) must be below 0.2.Note 2: for measuring cytokines in cell culture supernatant, samples should be diluted inPBST-B. However, when measuring cytokines in pure serum or plasma, the diluent for the standard and blank control should preferentially be control serum or plasma originating from the same species.Storage kit reagentsThe vials with lyophilized coating antibodies and biotinylated detector antibodies can be safely stored in a refrigerator for a defined length of time (expiry date indicated on the vial). After reconstitution, the antibodies remain fully active for minimal 6 months at 4ºC (39ºF) when kept sterile. However, it is strongly recommended to divide the reconstituted antibody solutions into small aliquots for single use. These aliquots should be stored at ≤-20ºC. Under these conditions the antibodies are stable for at least one year.Upon arrival, the vial with lyophilized SPP conjugate should be stored at ≤ -20°C. Storage of the vial at room temperature or at 4ºC for several months may lead to lower OD readings in the ELISA. After reconstitution, the SPP solution is stable for 2 months at 4°C but rapidly looses activity when stored at room temperature. It is strongly recommended that after reconstitution, the solution is immediately divided into small aliquots for single use and stored at ≤-20°C. Under these conditions SPP is stable for minimal 12 months.Directions for washing•Incomplete washing will adversely affect the assay. All washing must be performed with wash buffer (PBST).•Washing can be performed manually as follows: completely aspirate the liquid from all wells by gently lowering an aspiration tip (aspiration device) into each well. After aspiration, fill the wells with at least 300 µl wash buffer. Let soak for 10 to 20 seconds, then aspirate the liquid. Repeat as directed under "General procedure". After washing, the plate is inverted and tapped dry on absorbent paper.•Alternatively, the wash buffer may be put into a squirt bottle. If a squirt bottle is used, flood the plate with wash buffer, completely filling all wells. After washing, the plate is inverted and tapped dry on absorbent paper.•If using an automated washing device, the operating instructions should carefully be followed.Trouble shooting•Poor consistency of replicates can be overcome by increasing the stringency of washes particularly after the incubation step with detector antibody.•High values of the blank control (optical density > 0.2) can be overcome by shortening the incubation time with the substrate solution or is caused by improper washing procedures. •Inconsistent replicates may be due to cross-contamination of wells by improper pipetting procedures.•If no signal is observed in the wells with the standards•try a new vial with cytokine standard•check the pH of the substrate solution (between 5.0 and 5.5)•verify whether the antibody, SPP conjugate and standardpreparations were properly diluted•Avoid sodium azide in wash buffers and diluents, as this is an inhibitor of peroxidase activity.•Storage of reconstituted SPP at room temperature for several days can lead to a significant loss of SPP activity and consequently low OD readings.ReferencesBooks:•Practice and theory of enzyme immunoassays 1985In: Laboratory techniques in biochemistry and molecular biology, Vol.15 (eds R.H.Burdon and P.H. van Knippenberg)Science Publishers bv, Amsterdam, The Netherlands•ELISA and other Solid Phase Immunoassays.Theoretical and Practical Aspects 1988(eds D.M.Kemeny and S.J.Challacombe)John Wiley & Sons Ltd, Chichester, UK• A practical guide to ELISA 1991(ed D.M.Kemeny) Pergamon Press, Oxford, UKReview of U-CyTech ELISA references:Human cytokines:•Arend, S.M. et al. 2000 J. Infect. Diseases 181: 1850-1854 •Demirkiran, A. et al. 2006 Liver Transpl. 12: 277-284 •Hoogendoorn, M. et al. 2005 Clin. Cancer Res. 11: 5310-5318 •Tang, Y-M. et al. 2006 World J. Gastroenterol. 11: 4575-4578•de Waal, L. et al. 2004 J. Virol. 78: 1775-1781Monkey cytokines:•Fallon, P.G. et al. 2003 J. Infect. Dis. 187: 939-945•Hartman, G. et al. 2005 Vaccine 23: 3310-3317•Kornfeld, C. et al. 2005 J. Clin. Invest. 115: 1082-1091 •Mascarell, L. et al. 2006 Vaccine 24: 3490-3499•Polakos, N.K. et al. 2001 J. Immunol. 166: 3589-3598•de Swart, R.L. et al. 2002 J. Virol. 76: 11561-11569Mouse cytokines:•Eijkelkamp, N. et al. 2004 J. Neuroimmun. 150: 3-9•Kavelaars, A. et al. 2005 J. Neuroimmun. 161: 162-168•Vroon, A. et al. 2005 J. Immunol. 174: 4400-4406Rat cytokines:•Dieleman, J.M. et al. 2006 Life Sci. 79: 551-558•Pacheco-López, G. et al. 2005 J. Neurosci. 25: 2330-2337•Sajti, E. et al. 2004 Brain Behav. Immun. 18: 505-514•Teunis, M.A.T. et al. 2002 J. Neuroimmun. 13: 30-38。

健康成年人的血浆胃动素、胃泌素、生长抑素水平的初步观察

健康成年人的血浆胃动素、胃泌素、生长抑素水平的初步观察

健康成年人的血浆胃动素、胃泌素、生长抑素水平的初步观察作者:区显维邹科文潘海珊李其信丁文陈彩霞来源:《中国医药导报》2008年第08期[摘要] 目的:探讨健康成年人空腹血清胃动素、胃泌素、生长抑素的正常值。

方法:将25例健康成年人(年龄18~60岁)用放射免疫分析法测定空腹血清胃动素、胃泌素、生长抑素。

结果:健康成年人空腹血清胃动素、胃泌素、生长抑素的平均水平分别为(264.32±61.27)、(156.56±47.52)、(72.62±28.13) pg/ml,且其在男女性别间无明显差异(P>0.05)。

结论:健康成年人空腹血清胃动素、胃泌素、生长抑素的水平与国内相关报道中的正常参考值接近,结果可靠,可作为正常参考值供临床科研工作者参考。

[关键词] 成年人;胃动素;胃泌素;生长抑素;正常值[中图分类号]R446[文献标识码]B [文章编号]1673-7210(2008)03(b)-为了探讨血浆胃动素(MTL)、胃泌素(GAS)、生长抑素(SS)的健康成年人水平,为今后更好地研究MTL、GAS、SS三种胃肠激素与慢性浅表性胃炎(CSG)的关系,提高对慢性浅表性胃炎(CSG)诊断的准确性和中医治疗慢性浅表性胃炎的疗效打下基础,近年来,我们对25例健康成年人血浆的MTL、GAS、SS水平进行了检测,现将检测情况报道如下:1对象与方法1.1研究对象为了更准确地检测正常成年人的MTL、GAS、SS水平,我们在健康的志愿者中,选择了25例作为研究对象,具体是:①年龄: 18~60岁,平均年龄为31.2岁。

②性别:男女不限,其中,男性13例,女性12例。

③所有受检者均进行病史调查,经胃镜和病理检查证实,无消化系统疾病和其他胃肠道器质性病变;同时进行其他实验室检查,排除其他系统器质性疾病。

并且,不吸烟,不嗜酒,1个月内无服用制酸剂、抗生素及非类固醇等药物史。

排除标准:①18岁以下、61岁以上者,妊娠或哺乳期妇女。

胃泌素,胃动素测定在胃肠疾病中的意义

胃泌素,胃动素测定在胃肠疾病中的意义

胃泌素,胃动素测定在胃肠疾病中的意义
杨军;许立天
【期刊名称】《武汉职工医学院学报》
【年(卷),期】1998(026)002
【摘要】胃泌素和胃动素测定临床已经应用于消化疾病的诊断,但迄今为止,这两种激素在胃肠的一些疾病,特别是胃、十二指肠粘膜病变的疾病中,到底起何作用仍不为临床所认同,各家报道亦不一致。

我们测定了部分胃、十二指肠粘膜病变患者及正常人血中胃泌素(GAS)和胃动素(MTL)水平,以探讨GAS和MTL在胃肠疾病中的临床意义。

【总页数】2页(P9-10)
【作者】杨军;许立天
【作者单位】附属医院;附属医院
【正文语种】中文
【中图分类】R573.02
【相关文献】
1.胃泌素、胃动素测定在诊断胃肠疾病中的临床意义 [J], 杨军;许立天;吴友胜
2.血浆胃动素和血清胃泌素在原发性胆汁反流性胃炎发病中的作用 [J], 张太坤;张光奇
3.护理干预对胃肠道手术患者术后心理状态、胃肠功能、血浆胃动素及胃泌素的影响 [J], 黄凌云;王建平;姜益;李孝珍;戴文雅;韩子华;郑锦辉
4.腹腔镜直肠癌根治术对老年结直肠癌患者的胃肠功能、胃动素和胃泌素的影响研
究 [J], 石光锋;王晓霜
5.护理干预对胃肠道手术患者术后心理状态、胃肠功能、血浆胃动素及胃泌素的影响分析 [J], 于晓华
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人胃动素(MTL)Elisa试剂盒说明书
本试剂盒仅供研究使用。

检测范围:96T
20pg/ml-480pg/ml
使用目的:
本试剂盒用于测定人血清、血浆及相关液体样本中胃动素(MTL)含量。

实验原理
人胃动素(MTL)Elisa试剂盒说明书本试剂盒应用双抗体夹心法测定标本中人胃动素(MTL)水平。

用纯化的人胃动素(MTL)
抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入胃动素(MTL),再与HRP 标记的胃动素(MTL)抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB 显色。

TMB 在HRP 酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。

颜色的深浅和样品中的胃动素(MTL)呈正相关。

用酶标仪在450nm 波长下测定吸光度(OD 值),
通过标准曲线计算样品中人胃动素(MTL)浓度。

试剂盒组成
1 30 倍浓缩洗涤液20ml×1 瓶7 终止液6ml×1 瓶
2 酶标试剂6ml×1 瓶8 标准品(960pg/ml)0.5ml×1 瓶
3 酶标包被板12 孔×8 条9 标准品稀释液1.5ml×1 瓶
4 样品稀释液6ml×1 瓶10 说明书1 份
5 显色剂A 液6ml×1 瓶11 封板膜2 张
6 显色剂B 液6ml×1/瓶12 密封袋1 个
标本要求
1.标本采集后尽早进行提取,提取按相关文献进行,提取后应尽快进行实验。

若不能
马上进行试验,可将标本放于-20℃保存,但应避免反复冻融
2.不能检测含NaN3 的样品,因NaN3 抑制辣根过氧化物酶的(HRP)活性。

操作步骤
1. 标准品的稀释:本试剂盒提供原倍标准品一支,用户可按照下列图表在小试管中进行稀释。

480pg/ml 5 号标准品150μl 的原倍标准品加入150μl 标准品稀释液
240pg/ml 4 号标准品150μl 的5 号标准品加入150μl 标准品稀释液
120pg/ml 3 号标准品150μl 的4 号标准品加入150μl 标准品稀释液
60pg/ml 2 号标准品150μl 的3 号标准品加入150μl 标准品稀释液
30pg/ml 1 号标准品150μl 的2 号标准品加入150μl 标准品稀释液
2. 加样:分别设空白孔(空白对照孔不加样品及酶标试剂,其余各步操作相同)、标准孔、待测样品孔。

在酶标包被板上标准品准确加样50μl,待测样品孔中先加样品稀释液40μl,然后再加待测样品10μl(样品最终稀释度为5 倍)。

加样将样品加于酶标板孔底部,尽
量不触及孔壁,轻轻晃动混匀。

3. 温育:用封板膜封板后置37℃温育30 分钟。

4. 配液:将30 倍浓缩洗涤液用蒸馏水30 倍稀释后备用
5. 洗涤:小心揭掉封板膜,弃去液体,甩干,每孔加满洗涤液,静置30 秒后弃去,如此重复5 次,拍干。

6. 加酶:每孔加入酶标试剂50μl,空白孔除外。

7. 温育:操作同3。

8. 洗涤:操作同5。

9. 显色:每孔先加入显色剂A50μl,再加入显色剂B50μl,轻轻震荡混匀,37℃避光显色15 分钟.
10. 终止:每孔加终止液50μl,终止反应(此时蓝色立转黄色)。

11. 测定:以空白空调零,450nm 波长依序测量各孔的吸光度(OD 值)。

测定应在加终止液后15 分钟以内进行。

操作程序总结:
计算
以标准物的浓度为横坐标,OD 值为纵坐标,在坐标纸上绘出标准曲线,根据样品的
OD 值由标准曲线查出相应的浓度;再乘以稀释倍数;或用标准物的浓度与OD 值计算出标
准曲线的直线回归方程式,将样品的OD 值代入方程式,计算出样品浓度,再乘以稀释倍数,
即为样品的实际浓度。

注意事项
1.试剂盒从冷藏环境中取出应在室温平衡15-30 分钟后方可使用,酶标包被板开封后如未用完,板条应装入密封袋中保存。

2.浓洗涤液可能会有结晶析出,稀释时可在水浴中加温助溶,洗涤时不影响结果。

3.各步加样均应使用加样器,并经常校对其准确性,以避免试验误差。

一次加样时间最好控制在5 分钟内,如标本数量多,推荐使用排枪加样。

4.请每次测定的同时做标准曲线,最好做复孔。

如标本中待测物质含量过高(样本OD 值大于标准品孔第一孔的OD 值),请先用样品稀释液稀释一定倍数(n 倍)后再测定,计算时请最后乘以总稀释倍数(×n×5)。

5.封板膜只限一次性使用,以避免交叉污染。

6.底物请避光保存。

7.严格按照说明书的操作进行,试验结果判定必须以酶标仪读数为准.
8.所有样品,洗涤液和各种废弃物都应按传染物处理。

9.本试剂不同批号组分不得混用。

10. 如与英文说明书有异,以英文说明书为准。

保存条件及有效期
1.试剂盒保存:;2-8℃。

2.有效期:6 个月
--上海榕柏生物技术有限公司************。

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