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肝细胞功能

肝细胞功能的相关文献在1989年到2021年内共计105篇,主要集中在内科学、药学、预防医学、卫生学 等领域,其中期刊论文93篇、会议论文5篇、专利文献1131975篇;相关期刊68种,包括父母必读、肝脏、中西医结合肝病杂志等; 相关会议5种,包括华东地区第13届实验动物科学学术交流会、第二十三届全国中西医结合消化系统疾病学术会议、中华中医药学会脾胃病分会第二十三次全国脾胃病学术交流会等;肝细胞功能的相关文献由230位作者贡献,包括潘志恒、程木华、张峰等。

肝细胞功能—发文量

期刊论文>

论文:93 占比:0.01%

会议论文>

论文:5 占比:0.00%

专利文献>

论文:1131975 占比:99.99%

总计:1132073篇

肝细胞功能—发文趋势图

肝细胞功能

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  • 潘志恒
  • 程木华
  • 张峰
  • 陈维真
  • 凌云彪
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  • J·拉希瑞
  • O·G·维克斯
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    • 摘要: 肝脏功能强大,是人体再生与代偿能力最强的器官,因此肝细胞即便受到了损伤,只要30%的肝细胞功能是正常的,它就能正常运转。这样病人容易放松警惕,认为肝功能是正常的。
    • 卢贤欢; 赵华琛; 王雪; 黄芝瑛; 淡墨
    • 摘要: This study was conducted to establish an in vitro 3D liver model and apply it to the drug liver toxicity evaluation.The 3D multicellular sphere model of HepaRG cells was established by hanging-drop technique for evaluation of liver function.The 3D liver model was used to test the hepatotoxicity of isoniazid and amiodarone hydrochloride compared to the 2D cell culture model.Our results showed that HepaRG cells formed a compact spheriod,and the level of cell albumin,urea and the CYP3A4 activity were significantly higher than that of 2D model.With the treatment of amiodarone hydrochloride in 2D and 3D model,the IC50 were 50 and 100 μmol·L-1,respectively.When the dose was less than 1 000 μmol·L-1,isoniazid had no hepatocyte toxicity in 2D model,while the IC50 in 3D model was 700 μmol·L-1.The LDH activities of both drugs in 3D model showed time-and dose-dependent correlation.The results suggest that this in vitro 3D hanging-drop liver model is good for testing liver functions with a high hepatic drug-metabolizing enzyme activity.Compared with the 2D model,the 3D liver model can accurately evaluate the liver toxicity of drugs.Our results demonstrated the importance of in vitro cell culture models for detection of in vivo-relevant adverse effects of drugs.%建立及评价体外肝脏3D模型在药物肝毒性评价中的优势.本研究利用悬滴技术构建HepaRG3D多细胞聚球体模型,并检测其肝功能水平,最后用该模型评价2个肝毒性阳性药重复给药毒性,并与2D模型下单次给药毒性进行比较.HepaRG细胞聚集生长形成微组织体,该模型的细胞白蛋白表达水平、尿素分泌水平和CYP3A4活性诱导水平均显著高于2D模型.盐酸胺碘酮在2D和3D培养模型下IC50分别为50和100 μmol·L-1;异烟肼在2D模型下IC50>1 mmol·L-1,3D模型下IC50为700 μmol·L-1.两个药物在3D模型下LDH活性均呈现明显的时间/给药次数依赖性和剂量正相关性.结果提示成功建立体外肝脏3D悬滴培养模型,与2D模型比较,该模型可用于准确评价肝毒性阳性药,并为将来体外准确、高通量和多次长期给药评价药物肝脏毒性提供可能.
    • 孟培霞; 李立阳; 邓干臻
    • 摘要: 猫脂肪肝(Fatty liver syndrome,FLS)又称为猫脂质沉积综合征(Feline hepatic lipidosis,FHL),是由于多种原因引起的脂质(主要是三酰甘油)蓄积于肝细胞而引起的肝脏肿大,从而引起胆红素代谢障碍、胆汁淤积、肝细胞功能下降的一类疾病。猫脂肪肝是宠物猫临床上比较常见的致命性疾病之一。
    • 骆源; 张春晓; 王玲; 张冬玲; 霍振华; 宋凯
    • 摘要: 本研究以斜带石斑鱼肝细胞为实验对象,在不同培养条件下进行原代培养,旨在探讨稳定可靠的斜带石斑鱼肝细胞分离及原代培养方法.采用组织块分离法和胰蛋白酶(含EDTA)消化法分离肝细胞,并通过密度梯度离心法分离纯化肝细胞,细胞悬液于DMEM/F-12、M199和L-15培养液中培养;细胞活力及数量采用血球计数板计数,并通过MTT法测定细胞增殖率;同时,测定不同时间培养上清液中乳酸脱氢酶(LDH)活性、白蛋白(ALB)和尿素氮(BUN)的含量,以分析肝细胞生长状态.结果表明,组织块方法不适于斜带石斑鱼肝细胞的培养,未见细胞从组织块中迁出,而胰蛋白酶消化法获得良好稳定的培养效果,细胞产量达到1.6×108个/g肝重,活细胞数达到95%;L-15培养基细胞生长明显优于DMEM/F-12和M199培养基;启动原代培养的48~72h阶段肝细胞生长代谢旺盛,培养上清液中LDH活性显著降低,ALB和BUN含量显著升高.结果显示,0.25%的胰蛋白酶常温消化法适合斜带石斑鱼肝细胞的分离,斜带石斑鱼肝细胞原代培养的最适培养基为L-15培养基,肝细胞在启动原代培养的48~72h生长代谢旺盛.
    • 杨艳; 周勇; 马玲
    • 摘要: 目的:探讨尿酸对人肝细胞功能及氧化应激的影响及其对肝细胞损伤作用。方法体外培养人肝细胞(HL-7702),分别加入0(对照组)、5、10、20、30 mg/dL 的尿酸进行干预,于24、48、72、96 h 后收集细胞。MTT法检测细胞活力。化学比色法检测肝细胞谷草转氨酶(AST)、谷丙转氨酶(ALT)、丙二醛(MDA)、谷胱甘肽过氧化物酶(GSH-Px)及超氧化物歧化酶(SOD)的水平。结果5、10、20、30 mg/dL 尿酸组细胞活力(MTT)、ALT、AST 均高于对照组(P <0.05),作用48、72、96 h 均高于24 h (P <0.05)。5、10、20 mg/dL 尿酸组 SOD 均较对照组减小(P <0.05);作用48、72、96 h 与24 h 比较均减小(P <0.05)。培养96 h 后 GSH-Px 较24 h 减小(P <0.05),30 mg/dL 尿酸组 GSH-Px 对照组增大(P <0.05);作用96 h 时 MDA 与24、48、72 h 比较均增大(P <0.05)。结论尿酸可以促进肝细胞增殖,并可能通过诱导氧化应激加强对肝细胞的损伤作用。%Objective To observe the effects of uric acid on human hepatocyte function and oxidative stress. Methods Human hepatocyte (HL-7702)cell were cultured in vitro,stimulated by 0,5,10,20,30 mg/dL UA,then collected the cells after 24,48,72,96 h.The cell viability was measured by MTT as say.The glutamic-oxalacetic transamina-se (AST )、glutamic-pyruvic transaminase (ALT )、 malon-dialdehyde (MDA)、glutathione peroxidase(GSH-Px)、superoxide dismutase (SOD)levels were detected by enzyme mark instrument.Results The cell viability,ALT and AST in 5,10,20,30 mg/dL group were higher than those in the control group (P <0.05),which were also higher in 48,72,96 h than 24h (P <0.05). SOD were decreased in 5,10,20mg/dL UA group compared with the control group,SOD decreased in 48,72,96 h compared with 24 h (P <0.05).GSH-Px decreased in 96 h than 24 h (P <0.05).MDA in the 30 mg/dL group were increased as compared with control group (P <0.05);in 96 h were increased as compared with 24,48,72h (P <0.05).Conclusion Uric acid can promote the human hepatocyte viability, and promote its injury via the oxidative stress response.
    • 薛冉; 孟庆华
    • 摘要: 正在肝脏的恶性肿瘤中,原发性肝癌(hepatocellular carcinoma,HCC,下文简称肝癌)约占90%以上,位居全世界恶性肿瘤发病率的第五位,病死率的第三位,每年近100万人死于该病,新增患者也接近100万。其中,约45%的新增病例集中在我国大陆,成为我国恶性肿瘤的第二位致死病因[1]。尽管恶性肿瘤的发病原因尚未阐明,但是,越来越多的证据提示:恶性肿瘤是一种代谢相关
    • 李宗芳; 王志东
    • 摘要: 肝癌是全球常见的恶性肿瘤之一,我国肝癌的发病人数及死亡人数均居全球首位,约占全球发病人数的55%和死亡人数的45%[1]。手术是治疗肝癌的主要手段之一,但我国80%的肝癌患者继发于不同程度的肝硬化,肝脏体积缩小,肝功能不同程度受损,而且相当一部分患者被确诊时肿瘤体积较大,
    • 张鹏春; 陈丽君; 范瑞威; 郭苗苗; 郭志侯; 张伟倩; 张志刚
    • 摘要: 为研究亚硒酸钠对游离脂肪酸(free fatty acid,FFA)致体外培养大鼠肝细胞凋亡和线粒体膜电位降低的保护作用,本试验通过胶原酶两步灌流法分离培养肝细胞,在细胞培养液中添加FFA和亚硒酸钠(0.1 μmol/L)测定细胞的凋亡情况、细胞功能和线粒体膜电位.结果表明,随着培养液中FFA浓度的升高,细胞凋亡加重,肝细胞功能受到影响,线粒体膜电位降低且FFA的这种作用呈剂量依赖性;亚硒酸钠能抑制由FFA引起的肝细胞的上述变化.
    • 张鹏春; 陈丽君; 范瑞威; 郭苗苗; 郭志侯; 张志刚
    • 摘要: The experiment was conducted to study the effect of sodium selenite on liver function and the activity of Caspase 3 induced by free fatty acids (FFA).Primary rat hepatocytes were obtained by two-step collagenase perfusion method.Cell proliferation rates,liver function and the activity of Caspase 3 in FFA-treated group with or without sodium selenite (0.10μmol/L) were determined.The results showed that:FFA changed dose-dependently cell proliferation rates, liver function and the activity of Caspase 3,whereas the presence of sodium selenite reversed these alternations.%  为研究亚硒酸钠(Na2SeO3)对游离脂肪酸(FFA)诱导大鼠肝细胞功能和Caspase 3活性变化的作保护用,采用胶原酶两步灌流法分离培养肝细胞,在细胞培养液中添加FFA和Na2SeO3(0.10μmol/L),测定肝细胞上清液生化指标、细胞增殖率和Caspase 3活性。结果表明,培养液中添加FFA,细胞增殖率降低,肝细胞功能受到影响, Caspase 3活性升高,且FFA的这种作用呈剂量依赖性;Na2SeO3能抑制由FFA引起的肝细胞的上述变化。
    • 燕群; 李爱民; 邓丽娟; 林建华; 王泽楠; 罗晓蓓; 王亚东; 张亚历; 刘思德
    • 摘要: Objective To provide the evidence for hepatocellular adenoma as the ideal cell source of bioartificial liver by exploring the synthesis, metabolism and detoxification function of hepatocellular adenoma. Methods We collected three surgical resection specimens during past two years in Nanfang Hospital. The specimens were pathologically confirmed as hepatic adenoma. The functionally related genes were detected by immunohistochemistry and qRT-PCR. The results were compared with normal liver tissue. Results Necleolus of hepatocellular adenoma was similar to normal liver tissue in cell morphology. The expressions of ALB, P450 and CK18 were high in both hepatocellular adenoma and normal tissue, but AFP was not expressed in hepatocellular adenoma and normal tissue except one hepatocellular adenoma tissue. QRT-PCR showed that the functionally related genes were all high in hepatocellular adenoma, even higher than normal tissues, but the expressions of AFP in hepatocellular adenoma were lower than normal tissue except one. Conclusion Hepatocellular adenoma was close to normal liver tissue both in cell morphology and in a variety of functional proteins and enzymes, and was expected to become the ideal cell source for artificial liver biological materials.%目的 初步探索肝腺瘤组织细胞所具备的合成、代谢、解毒等肝脏功能活性水平,为其能否成为人工肝新型细胞材料来源提供依据.方法 收集近三年来南方医院手术切除并经病理证实为肝腺瘤的组织标本3例,HE染色后电子显微镜下观察其细胞形态及组织结构,并通过糖原染色、免疫组化及qRT-PCR等方法检测肝细胞合成、代谢和转化等功能相关基因的表达情况,同时与正常肝组织细胞的功能水平进行对比.结果 肝腺瘤细胞形态与正常肝细胞相似,细胞核无明显异型性,qRT-PCR检测发现肝腺瘤各肝功能相关基因的表达均与正常肝组织细胞相当,部分指标甚至高于正常肝组织细胞.免疫组化检测发现肝腺瘤和正常肝组织中ALB、P450和CK18均有较强表达,AFP除一例肝腺瘤组织有部分表达外余2例和全部正常组织均无表达.结论 肝腺瘤细胞有望在解决生物人工肝细胞来源缺乏问题上产生重大突破,有必要进一步开展肝腺瘤的建株研究.
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