大鼠脂肪供肝肝移植模型的建立解析
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万方数据
・2422・
主堡塞验处型苤查垫!i生!!旦箜!!鲞箜!!塑g地!』垦狸!!垡:Q!!!!竺!Q!!,!!!:!!:堕!:!Q
ly.There was significant difference of ALT level among the three groups(F=33.9,P<0.01).The level of serum TBIL on day 1 after operation was(27.0±3.7),(48.5.4-7.5)and(59.0±11.5)¨moL/L,re. speetively.Compare to the control group,the level of TBIL were significant higher in the MFL and SFL groups.Similar results were observed in the level of MDA and TNF—Ot in the liver tissue.There were 7
ter
6
and 10 weeks h Jigh—fat feeding.The level of serum ALT
on
day 1 after operation was f 614.5±
70.6),(1 177.5±150.9)and(1 476.5±211.5)U/L
in the control,MLF and SLF group,respective-
aminotransferase(ALT),total bilirubin(TBIL)and tIle contents of malondialdehyde(MDA), observed.The other 8 rats in each group were
kept for survival analysis.Experimental data were compared by ANOVA and followed by post hoc LSD tests.Overall survival rates were calculated using the Kaplan—Meier method,and comparisons were per— formed using the log—rank test.Results Moderate and severe degrees of liver steatosis were observed af-
can
of the three groups.Conclusion
be successfully estab.
1ished by high—fat diet feeding,which simulating the progression of nonalcoholic fatty liver in human be— ing,and provide
3.标本收集和检测指标:(1)3组大鼠术后1 d各 取4只大鼠,10%水合氯醛腹腔注射麻醉大鼠后,从肝 下下腔静脉取血,并取肝脏组织标本。3组各剩余的8 只大鼠观察术后生存情况。(2)血清指标:全自动化
学分析仪酶法测定各组大鼠肝移植术后血清谷丙转氨
供肝,对于这类边缘性供肝,用还是不用是很多移植外 科医生的两难选择。与正常的肝脏比较,脂肪肝对缺
Affiliated Hospital of Sun Yat—sen University,Guangzhou 510630, China(Zhang YC,Tang H,Yao J,Zeng KN,Yang Y,Chen GH);Department of General S“rge可,the Third Affiliated Hospital of Sun Yat—sen University,Guangzhou 510630,China(Xu SL);Bio—treatment Center,the Third Affiliated Hospital of Sun Yat—sen University,Guangzhou 510630,China(Cheng JT, Zhang Q) Corresponding author:№昭№ng,Email:yysysu@163.eom 【Abstract】 Objective We try to establish a novel nonalcoholic fatty liver model in rat,which was
a
novel rat model of liver transplantation with Hui,Xu Shilei,Cheng
nonaicoholic fatty liver graft Kaining,Zhang
Yingcai,死ng
Jintao,Yao胁,ze凡g
Qi,%昭№昭,
Chen Guihua Liver Transplantation Center,the Third
rats(7/8)survived for (1/8)in SLF group.There
rats
over
one
was
week in control group while only 3 rats(3/8)in MLF group and 1 rats significant difference in the cumulative survival rates after operation among The rat model of nonalcoholic fatty liver
City(158100076,201400000001—3)
临床肝移植发展历史已超过50年,但供肝短缺的
0.5)min,冷缺血时问为(70 4-13)min,无肝期时间为 (17±5)min。
难题一直无法解决。为了增加供肝来源,活体肝移植、 劈裂式肝移植、多米诺肝移植和边缘性供肝等策略被
广泛采用¨引。’脂肪供肝是临床最常见的一种边缘性
similar
to
the steatosis liver in huan,and
to
investigate
the graft function and survival after liver transplanta-
tion.Methods
rats,weighting from 40 to 50 g,were chose to establish fatty liver model by high— fat diet feeding.Lewis rats were fed normal rat chow in the control group.high—fat chow in moderate fatty
主堡塞堕2E型苤盛!!!!生!!旦筮!!鲞筮!!塑堡!也』垦翌!!垡:Q!堕!笪!!!鱼:!!!:!!:盟!:!!
・2421・
・动物模型・
大鼠脂肪供肝肝移植模型的建立
张英才 唐晖许世磊
程锦涛姚嘉
曾凯宁
张琪杨扬
陈规划
作者单位:510630广州,中山大学附属第三医院肝移植科(张英才、唐晖、姚嘉、
曾凯宁、杨扬、陈规划),普通外科(许世磊),生物治疗中心(程锦涛、张琪) 通信作者:杨扬,Email:yysysu@163.corn
LewБайду номын сангаасs
liver(MFL)group for 6 weeks,and high—fat chow in severe fatty liver(SFL)group for 10 tively.Brown Norway(BN)rats,8—10 weeks of age and weighing 250—350 g,were used
weeks respec-
as
recipients.
All animals were given free access to water.After liver transplantation,rats in all three groups were fed normal rat chow.Four rats from each group were put to death on day 1 after operation.The levels of serum alanine tumor necrosis factor(TNF)一d in grafted liver tissue were
DOI:10.3760/cma.j.issn.1001-9030.2016.10.053 【摘要】 目的建立一种模拟人脂肪供肝的大鼠模型,评估其行肝移植术后的效果。方法
通过高脂饲料饮食建立大鼠中重度脂肪肝模型,采用Lewis大鼠作为脂肪肝供体,36只Lewis大鼠, 体重为40—50 g,随机分为对照组、中度脂肪肝组和重度脂肪肝组,各12只。Brown Norway(BN)大 鼠做为受体,利用改良的“二袖套法”进行大鼠原位肝移植手术。各组于术后1 d均取4只大鼠,留 取血清和肝脏标本检测血清丙氨酸转氨酶(ALT)、总胆红素(TBIL)的水平,移植肝组织丙二醛 (MDA)、肿瘤坏死因子一a(TNF一仅)的水平,观察各组其余的8只大鼠术后生存情况。3组大鼠计数 资料的多重比较采用单向方差分析,大鼠生存分析的比较采用Kap|an-Meier法和Log-rank检验。结 果经过6周和10周的高脂饲料喂养后,Lewis大鼠肝细胞的脂肪变程度分别达到中度和重度脂肪 肝的水平。2对照组、中度脂肪肝组和重度脂肪肝组肝移植术后1 d的ALT分别为(614.5±70.6)、 (。1 177.5±150.9)、(1 476.5±211.5)U/L,3组间两两比较差异有统计学意义(F=33.9,P<0.01)。 TBIL分别为(27.0±3.7)、(48.5±7.5)、(59.0±11.5)¨moL/L,与对照组比较,中度和重度脂肪肝 组TBIL水平明显升高,3组间两两比较差异有统计学意义(F=15.7,P<0.01)。肝组织MDA和 TNF—Ot水平也观察到类似的结果。3组大鼠肝移植术后1周的生存率分别为87.5%(7/8)、37.5% (3/8)和12.5%(1/8)。结论高脂饲料喂养大鼠可较好地模拟人脂肪肝的发展过程,为临床脂肪 供肝肝移植提供一种较好的动物研究模型。
究离不开相应的动物模型实验,本研究旨在建立一种
湿肝,低温下制成10%肝匀浆,离心后取上清液
0.1
最大限度模拟人脂肪肝的大鼠模型,并评估其肝移植 术后的效果,为后期的临床脂肪供肝肝移植相关研究
血再灌注损伤更为敏感,移植术后原发性肝无功能和 胆道并发症的发生率明显升高。如何预防和减少脂肪
酶(ALT)和总胆红素(TBIL)的水平。(3)氧化损伤指 标:按试剂盒说明采用硫代巴比妥酸法测丙二醛
(MDA)含量。(4)肝组织细胞因子:每只大鼠取0.5
g
供肝移植术后的缺血再灌注损伤和免疫损伤,提高脂 肪供肝的利用率是肝移植的研究热点之一。而这些研
【关键词】非酒精性脂肪肝;大鼠;肝移植
基金项目:国家自然科学基金(81370575、81570593);广东省自然科学基金研究团队项目 (2015A030312013);广州市科技计划健康医疗协同创新重大专项(158100076、201400000001-3)
Establishment of
Zhang
an
【Key words】
ideal animal model for the research of clinical liver transplantation. Nonalcoholic fatty liver disease; Rat;Liver transplantation
Fund program:National Natural Science Foundation of China(81370575、81570593);Guangdong Natural Science Foundation(2015A0303 12013);Sci—tech Research Development Program of Guangzhou