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肝缺血

肝缺血的相关文献在1988年到2022年内共计194篇,主要集中在外科学、内科学、中国医学 等领域,其中期刊论文187篇、会议论文3篇、专利文献13311篇;相关期刊103种,包括中国中西医结合外科杂志、中华肝胆外科杂志、中华实验外科杂志等; 相关会议3种,包括2012重庆国际肝胆外科论坛暨第十八届中国普外基础与临床进展学术大会、首届国际医学影像学暨介入医学学术会议、全国微生态调节剂第六届学术研讨会等;肝缺血的相关文献由491位作者贡献,包括林丽娜、王万铁、何三光等。

肝缺血—发文量

期刊论文>

论文:187 占比:1.39%

会议论文>

论文:3 占比:0.02%

专利文献>

论文:13311 占比:98.59%

总计:13501篇

肝缺血—发文趋势图

肝缺血

-研究学者

  • 林丽娜
  • 王万铁
  • 何三光
  • 刘永锋
  • 卢绮萍
  • 吴在德
  • 吴孟超
  • 孙经建
  • 李东
  • 李正中
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 高杨; 张升宁; 李来邦; 冉江华
    • 摘要: 目的探究花生四烯酸12-脂氧化酶(ALOX12)–12-氢基二十碳四烯酸(HETE)–GPR31轴在肝脏再灌注肝缺血损伤中的作用机制。方法采用8周龄雄性B6.Cg-Tg(MX1-cre)Cgn/J小鼠为研究对象,采用随机数字表法分为三组:空白对照组(n=12)、实验对照组(n=12)和实验组(n=12)。实验组小鼠进行基于胚胎干细胞的基因打靶技术制备基因敲除手术;进行肝血流阻断。肝血流阻断45 min后发送移走血管夹,以恢复血液供应。实验对照组进行肝血流阻断。空白对照组同样进行开腹但并不进行肝血流阻断。采用蛋白质印迹法(Western blotting)检测ALOX12–12-HETE–GPR31轴中基因表达水平。采用酶联免疫吸附测定(ELISA)法分别检测肝脏血清中白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)和肿瘤坏死因子-α(TNF-α)三项炎性因子水平和12-HETE含量。采用原位细胞凋亡检测试剂盒检测细胞凋亡情况。采用日立7180全自动生化分析仪检测小鼠肝脏血清中丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、AST/ALT。结果肝脏再灌注肝缺血损伤小鼠的ALOX12–12-HETE-GPR31轴中基因转录水平均高于空白对照组(P0.05)。实验对照组小鼠肝脏中IL-1β[(20.53±1.32)ng/L比(10.61±0.83)ng/L]、IL-6[(322.1±11.41)ng/L比(107.34±9.02)ng/L]、TNF-α水平[(31.78±2.42)ng/L比(11.41±0.98)ng/L]、12-HETE含量、肝脏组织细胞凋亡率、ALT[(47.94±1.48)U/L比(24.85±1.50)U/L]、AST[(54.45±3.17)U/L比(30.69±2.08)U/L]和AST/ALT[(1.23±0.04)比(0.69±0.03)]均高于空白对照组(P0.05)。结论ALOX12表达量的上调会促进12-HETE的积累,特异性敲除ALOX12基因,阻断12-HETE的积累能够有效抑制肝脏再灌注肝缺血损伤。
    • 郭成伟; 郝永; 张小燕; 金正印; 崔现成; 王红素; 张宝华; 吴清华; 颜林军
    • 摘要: 目的观察兔肝缺血再灌注损伤(IRI)晚期阶段弥散张量成像(DTI)参数平均扩散系数(DCavg)和各向异性系数(FA)变化情况及与天冬氨酸转氨酶(AST)、丙氨酸转氨酶(ALT)、血清肿瘤坏死因子-α(TNF-α)、镜下病理组织学积分的相关性。方法24只实验兔,将其中18只制成IRI模型,随机分为IRI 12 h、IRI 24 h和IRI 48 h组,每组6只,假手术组6只。各组分别行磁共振DTI(b=100、300、600 s/mm^(2))检查,检测AST、ALT及TNF-α水平,评估病理形态学积分。采用多元线性相关分析血清AST、ALT、TNF-α水平及病理形态学积分与DCavg、FA间相关性。结果4组AST、ALT、TNF-α水平及病理形态学积分比较差异有统计学意义(P<0.05)。b=100 s/mm^(2)时,IRI 24 h组DCavg低于假手术组(P<0.05);b=100、300、600 s/mm^(2)时,IRI 48 h组DCavg高于IRI 24 h组(P<0.05)。b=300、600 s/mm^(2)时,IRI 24 h组FA低于假手术组,IRI 48 h组FA低于假手术组及IRI 12 h、24 h组(P<0.05)。DCavg(b=300 s/mm^(2))及FA(b=100、300、600 s/mm^(2))与AST、ALT、TNF-α水平及病理学积分存在较好的相关性(P<0.01)。结论FA与AST、ALT、TNF-α水平及病理学积分为兔肝IRI实验研究和临床治疗评估提供了一种可行性方法。
    • 刘符生; 郝星源; 王海涛; 何跃明; 张中林; 袁玉峰
    • 摘要: 目的 探索肝脏术后严重肝缺血或淤血对病人生存预后的影响,探讨病情恢复过程中面临的问题和规律,以及临床治疗的关键措施.方法 回顾8例肝脏术后发生严重缺血、淤血性并发症病人,归纳该类并发症的临床病程及治疗要点;通过倾向性评分匹配方法匹配常规手术对照组,分析研究组(8例)和对照组(30例)术后肝功能、术后住院时间和住院费用的差异.结果 与对照组比较,研究组术后肝功能明显下降,术后住院时间和住院费用均明显增高,差异具有统计学意义(P<0.05).经关键性引流、补充血浆制品和白蛋白等治疗,8例病人全部存活,无死亡病例,随访至今未发现严重后遗症.结论 肝缺血、淤血性并发症病人因其一系列病理生理变化导致术后肝功能下降,术后住院时间和住院费用升高,但病人基本可获得较好预后.术前和术中应积极预防该类并发症发生,治疗过程中需注意动态监测病人病情并对病情变化做出及时干预,关键性引流、补充血浆制品和白蛋白可能是治疗中的重要环节.
    • 南格利; 阮欣宇; 王柳; 刘洁; 段麦叶; 王莉; 王欢
    • 摘要: 目的 探讨超声造影定量分析大鼠肝缺血再灌注损伤(HIRI)的可行性.方法 49只SD大鼠因造模死亡7只,余42只随机分为假手术组和HIRI组,HIRI组根据不同再灌注时间分为0.5 h、3 h、6 h、12 h、24 h、48 h共6个亚组,每组各6只.建立大鼠HIRI模型,应用超声造影观察各组肝灌注情况,获得超声造影定量参数,包括峰值强度(PI)、曲线下面积(AUC)、达峰时间(TP)、平均渡越时间(MTT).抽取大鼠下腔静脉血,检测其谷丙转氨酶(ALT)和天冬氨酸转氨酶(AST)水平.分析超声造影定量参数与血清ALT、AST水平间的相关性.结果 HIRI 0.5 h、3 h、6 h、12 h、24 h、48 h组PI、AUC均低于假手术组,TP、MTT均高于假手术组,差异均有统计学意义(均P<0.05).HIRI 0.5 h、3 h、6 h、12 h、24 h、48 h组ALT、AST水平均高于假手术组,差异均有统计学意义(均P<0.05).相关性分析显示,AUC与血清ALT、AST水平均呈负相关(r=-0.754、-0.808,均P<0.001);TP与血清ALT、AST水平均呈正相关(r=0.731、0.709,均P<0.001);MTT与血清AST水平呈正相关(r=0.718,P<0.001);PI与血清ALT、AST水平无相关性.结论 超声造影能准确反映大鼠HIRI微循环的变化,对评估HIRI的病情具有一定价值.
    • 吴鹏俐; 钟坪杉; 阳德飞; 肖莉
    • 摘要: 肝缺血再灌注损伤(HIRI)是肝手术、肝移植中常见的病理生理现象,是由于进行手术时肝血管被阻断,在阻断移除后,肝血供恢复,然而肝并没有因此恢复正常生理功能,反而造成并加重损伤的现象.现有关于HIRI的研究,主要可以归纳为3种损伤原因:氧化应激,白细胞的聚集,钙超载.这几个方面可以同时发生,相互影响,互相作用.然而关于信号通路方面的研究较少.研究具体的信号通路可以更好地解释HIRI在分子层面的损伤机制,有利于形成预防HIRI的措施,减轻HIRI,促进新药的研发.因此,本文着重信号转导和分子学机制方面的作用,就最新的研究进行描述.
    • 秦红波; 费建国; 宋政炜
    • 摘要: Objective To investigate the role of hydrogen sulfide in fatty liver ischemia-reperfusion injury in rats.Methods Eighteen healthy male Sprague-Dawley (SD) rats were fed on high fat diet for 4 weeks,and then divided into three groups according to the method of random number table,sham operation group (S group),ischemia-reperfusion group (IR group) and sodium hydrosulfide group (NaHS group).In S group hepatic portal was only exposed but not ligated.In IR group hepatic portal vein and hepatic artery of the left and middle lobes were clamped for 1 h and then reperfused.NaHS group received intravenous injection of NaHS (28 μmol/kg) 5 min before reper-fusion.Blood samples were collected for measuring the level of alanine transaminase (ALT) and tumor necrosis factor-t (TNF-α) in serum at 6 h after reperfusion.Liver tissue samples were collected for pathologic examination.Results The serum ALT levels in S group,IR group and NaHS group were (64 ± 8),(1 393 ± 69) and (823 ± 42) U/L,and the serum TNF-α levels in S group,IR group and NaHS group were (55.62 ± 7.24),(288.97 ±41.42) and (203.65 ± 37.36) ng/L respectively.As compared with S group,the serum levels of ALT and TNF-α were significantly increased in IR group (t =44.194,P=0.000;t =20.586,P =0.000).As compared with IR group,the serum levels of ALT and TNF-α were significantly decreased in NaHS group (t =-36.415,P =0.000;t =-4.556,P =0.006).The pathological damage degree was milder in NaHS group (Suzuki's score 2.33) than in IR group (Suzuki's score 3.67;t =6.325,P =0.001).Conclusion Hydrogen sulfide can reduce fatty liver ischemia-reperfusion injury in rats through the inhibition of TNF-α expression.%目的 探讨硫化氢减轻大鼠脂肪肝缺血再灌注损伤的作用机制.方法 健康雄性SD大鼠18只,高脂饮食4周后形成脂肪肝,将其按数字随机表法随机分为假手术组(S组)、缺血再灌注组(IR组)和硫氢化钠组(NaHS组).S组仅暴露肝门,不夹闭动、静脉;IR组采用夹闭左叶及中叶门静脉和肝动脉分支1h后恢复灌注的方法制备大鼠脂肪肝缺血再灌注模型;NaHS组于再灌注前5 min经股静脉注射28 μmol/kg NaHS,于再灌注6h时抽取下腔静脉血样并取左肝组织,测定血清丙氨酸转氨酶(ALT)及肿瘤坏死因子-α(TNF-α)水平,苏木素-伊红(HE)染色后观察肝组织病理学结果.结果 S组、IR组、NaHS组血清ALT水平分别为(64±8)、(1 393±69)、(823±42) U/L;S组、IR组、NaHS组血清TNF-α水平分别为(55.62 ±7.24)、(288.97 ±41.42)、(203.65±37.36) ng/L;IR组血清ALT及TNF-α水平均显著高于S组(t=44.194,P=0.000;t 20.586,P=0.000);NaHS组血清ALT及TNF-α水平均显著低于IR组(t=-36.415,P=0.000;t=-4.556,P=0.006);NaHS组(Suzuki's评分为2.33分)肝病理学损伤较IR组(Suzuki's评分为3.67分)明显减轻(t =6.325,P=0.001).结论 硫化氢可通过抑制TNF-α的表达而减轻大鼠脂肪肝缺血再灌注损伤.
    • 秦红波; 费建国; 宋政炜
    • 摘要: Objective To investigate whether intravenous injected sodium hydrosulfide (NaHiS) could alleviate the fatty liver ischemia-reperfusion injury in rats and the mechanism.Methods 30 healthy male Sprague-Dawley (SD) rats were fed with high fat diet for 4 weeks then divided into five groups randomly,sham operation group (S group),ischemia-reperfusion group (IR group) and different doses of sodium hydrosulfide groups (NaHS 1-3 groups).In S group hepatic portal was only exposed but not ligated.In IR group the left and middle lobes of hepatic portal vein and hepatic artery were clamped for 1 h and then reperfused.NaHS 1-3 groups received intravenous of NaHS 14,28,56 μmol/kg 5 min before reperfusion.Blood samples were collected for measuring the level of alanine transaminase (ALT) in serum at 6 h after reperfusion.Liver tissue samples were collected for measurement the content of malondialdehyde (MDA) and the activity of superoxide dismutase (SOD) and pathologic examination.Results The level of ALT in serum of S group,IR group and NaHS 1-3 group were (64 ± 8),(1 393 ± 69),(852 ±53),(823 ±42),(807 ±57) U/L respectively;The content of MDA in liver tissue of S group,IR group and NaHS 1-3 group were (2.15 ±0.24),(7.97 ±0.42),(5.26 ±0.34),(4.95 ±0.42),(4.77 ± 0.40) nmol/mg prot respectively;the activity of SOD in liver tissue were (421 ± 20),(201 ± 32),(517 ±27),(601 ±23),(607 ±30) U/mg prot respectively.Compared with S group,the level of ALT in serum and MDA content in liver tissue were increased in IR group (t =44.194,P =0.000;t =42.068,P =0.000),and the activity of SOD in liver tissue was decreased in IR group (t =-14.658,P =0.000).Compared with IR group,the level of ALT in serum were decreased in NaHS 1-3 group (t =-11.563,P=0.000;t=-36.415,P=0.000;t=-13.372,P=0.000),and the content MDA in liver tissue were decreased in NaHS 1-3 group (t =-10.375,P =0.000;t =-17.532,P =0.000;t =-12.402,P =0.000),the activity of SOD in liver tissue was increased in NaHS 1-3 group (t =24.087,P =0.000;t =30.451,P =0.000;t =42.542,P =0.000).The pathological damage degree was lighter in NaHS 1-3 group (Suzuki's score 2.50,2.33,2.17) than IR group (Suzuki's score 3.67) (t=3.873,P=0.012;t=6.325,P=0.001;t=11.608,P=0.000).Conclusion Intravenous injected sodium hydrosulfide can reduce fatty liver ischemia-reperfusion injury in rats through the inhibition of lipid peroxidation.%目的 探讨静脉注射硫氢化钠是否可减轻大鼠脂肪肝缺血再灌注损伤及机制.方法 健康雄性SD大鼠30只,高脂饮食4周后形成脂肪肝,将其随机分为假手术组(S组)、缺血再灌注组(IR组)和不同剂量硫氢化钠组(NaHS 1 ~3组).S组仅暴露肝门,不夹闭动、静脉;IR组采用夹闭左叶及中叶门静脉和肝动脉分支1h后恢复灌注的方法制备大鼠脂肪肝缺血再灌注模型;NaHS1~3组于再灌注前5 min分别经股静脉注射14、28、42 μmol/kg硫氢化钠,于再灌注6h时抽取下腔静脉血样并取左肝组织,测定血清丙氨酸转氨酶(ALT)水平,并测定肝组织中丙二醛(MDA)含量及超氧化物歧化酶(SOD)活力,苏木素-伊红(HE)染色后观察肝组织病理学结果.结果 S、IR、NaHS1~3组血清ALT水平分别为(64±8)、(1 393±69)、(852 ±53)、(823 ±42)、(807±57) U/L;S、IR、NaHS 1 ~3组肝组织MDA水平分别为(2.15±0.24)、(7.97±0.42)、(5.26±0.34)、(4.95±0.42)、(4.77 ±0.40) nmol/mg蛋白;S、IR、NaHS 1 ~3组肝组织SOD活性分别为(421±20)、(201±32)、(517 ±27)、(601±23)、(607 ±30) U/mg蛋白;IR组血清ALT水平及肝组织MDA含量均显著高于S组(t=44.194,P=0.000;t=42.068,P=0.000),SOD活力显著低于S组(t=-14.658,P=0.000);NaHS 1 ~3组ALT水平均显著低于IR组(t=-11.563,P=0.000;t-36.415,P=0.000;t=-13.372,P=0.000),NaHS 1 ~3组肝组织MDA含量均显著低于IR组(t=-10.375,P=0.000;t=-17.532,P=0.000;t-12.402,P=0.000),SOD活力显著高于IR组(t=24.087,P=0.000;=30.451,P=0.000;t =42.542,P=0.000);NaHS 1~3组(Suzuki's评分2.50、2.33、2.17分)肝病理学损伤较IR组(Suzuki's评分3.67分)明显减轻(t=3.873,P=0.012;t =6.325,P=0.001;t=11.608,P=0.000).结论 静脉注射硫氢化钠可通过抑制脂质过氧化而减轻大鼠脂肪肝缺血再灌注损伤.
    • 钟毓杰; 刘忠民; 黄勇平; 高峰
    • 摘要: Objective To explore the efficacy of application of ulinastatin combined with tetrandrine for reperfusion of ischemic rat liver. Methods A total of 105 rats were randomly divided into observation group and control group 1 and control group 2,and 35 rats in each group. Rats in observation group were given with intravenous administration of 8 mg tetrandrine and 20 000 U ulinastatin before performance of ischemia and reperfusion. Rats in control group 1 were given with intravenous administration of tetrandrine 8 mg/ kg before the performance of ischemia and reperfusion. Rats in control group 2 were given with intravenous administration of ulinastatin 20 000 U/ kg before the performance of ischemia and reperfusion. Serum levels of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)were dynamically observed. Changes in con-tents of MDA and nitric oxide(NO)in liver tissue were compared,and the concentrations of tumor necrosis factor alpha(TNF - α)and free cal-cium ions[Ca2 + ]in hepatocytes were compared. Results The difference in levels of AST and ALT in rats of observation group and control group before ischemia had no statistical significance( P ﹥ 0. 05). After reperfusion for 10 min to 50 min,levels of AST and ALT in rats of observation group were significantly lower than those of rats in control group,and the difference was statistically significant( P ﹤ 0. 05). The concentrations of TNF - α and free calcium ions[Ca2 + ]in hepatocytes of rats in observation group were significantly lower than those of rats in control group, and the difference was statistically significant( P ﹤ 0. 05). Conclusion The application of ulinastatin combined with tetrandrine for reperfusion of ischemic hepatocytes can reduce the amount of released free oxygen radicals,improve microcirculation,reduce TNF - α and inhibit the overload of intracellular calcium ions,thus it has obviously protective function on ischemic liver and injury of reperfusion.%目的:探析乌司他丁联合粉防己碱在大鼠肝缺血再灌注中的应用效果。方法入选实验大鼠105只,随机分为观察组、对照1组和对照2组,每组35只。观察组在缺血前、再灌注前静脉注射8 mg/ kg 粉防己碱,20000 U/ kg乌司他丁,对照1组在缺血前、再灌注前静脉注射8 mg/ kg 粉防己碱;对照2组缺血前、再灌注前静脉注射20000 U/ kg乌司他丁,动态观测血清丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST);比较肝组织中丙二醛(MDA)、一氧化氮(NO)含量变化;比较肿瘤坏死因子-α(TNF -α)、肝细胞游离钙离子浓度([Ca2+]i)。结果观察组、对照1组、对照2组缺血前 AST、ALT 水平差异无统计学意义( P ﹥0.05);观察组再灌注10 min、再灌注50 minAST、ALT 水平显著低于对照1组、对照2组,差异有统计学意义( P ﹤0.05);而对照1组、对照2组再灌注后各时段 AST、ALT 水平差异无统计学意义( P ﹥0.05);观察组 MDA、NO 显著低于对照1组、对照2组,差异有统计学意义( P ﹤0.05),而对照1、对照2组之间比较差异无统计学意义( P ﹥0.05);观察组 TNF -α、[Ca2+]i 显著低于对照1、对照2组,差异具有统计学意义( P ﹤0.05),而对照1组、对照2组之间差异无统计学意义( P ﹥0.05)。结论肝缺血再灌注应用乌司他丁联合粉防己碱可降低氧自由基释放,改善微循环,降低 TNF -α水平,抑制细胞内钙离子超载,对大鼠肝缺血和再灌注损伤有显著的防护功能。
    • 慕宁; 江艺; 杨芳
    • 摘要: Objective To study the molecular mechanism of the effect of astilbin on the anti-inflammation signaling pathway in liver warm ischemia-reperfusion injury.Methods C57BL/6 mice were randomly divided into four groups (n =5):sham-operated group (Sham),model control group (I/R),low dosage of astilbin treatment group (10 mg/kg) and high dosage of astilbin (40 mg/kg) treatment group.Twenty-four h and one h before Ischemia,the mice in the treatment groups were intraperitoneally injected with 10 or 40 mg/kg astilbin.Then the hepatic ischemia-reperfusion model of 70 percent of liver,including the left and middle hepatic lobes,was established.The I/R model control group and the shamoperated group were administered with the same volume of normal saline.After 90 min ischemia and 6 h reperfusion of the partial hepatic lobe,liver tissue samples were collected from the experimental groups.The contents of supressors of cytokine signaling 1 (SOCS-1) and interleukin (IL)-10 in liver tissues were detected by using Western blotting.The mRNA expression of the same proteins was detected by using semiquantitative reverse transcriptase-polymerase chain reaction (SqRT-PCR).Results As compared with the I/R model control group,SOCS-1 and IL-10 protein levels were gradually increased in treatment groups,and higher in the high dosage group than in the low dosage group.The result of mRNA expression showed a same trend (P < 0.05 for low dosage group; P < 0.01 for high dosage group).Conclusion Intervention with astilbin can promote the expression of IL-10 protein and mRNA in IRI liver,thus inhibiting the inflammation; Intervention with astilbin can promote the expression of SOCS-1 protein and mRNA in IRI liver,showing its role of negative regulation by upregulating SOCS-1 pathway.%目的 观察落新妇甙对肝脏缺血再灌注损伤中对炎症信号通路的影响,探讨其缺血再灌注保护作用的分子机制.方法 C57BL/6小鼠随机分为4组:假手术组(Sham)、模型组(I/R)、落新妇甙小剂量(10 mg/kg)干预组和落新妇甙大剂量(40 mg/kg)干预组.缺血前24 h和1h干预组小鼠腹腔注射分别给予10 mg/kg或40 mg/kg落新妇甙,建立肝左、中叶70%部分肝缺血再灌注模型,模型组和假手术组给予同体积的生理盐水.小鼠肝脏左叶缺血90 min、再灌注6h后各实验组采集血液和肝脏组织样本.Western blot检测肝组织中细胞因子信号转导抑制分子1(SOCS-1)、白细胞介素(IL)-10蛋白含量,半定量逆转录-聚合酶链反应(SqRT-PCR)检测上述分子mRNA表达.结果 落新妇甙小、大剂量干预组肝组织中SOCS-1、IL-10蛋白表达与I/R模型对照组比较均逐渐升高,与SqRT-PCR结果相符(P<0.05).结论 落新妇甙干预能促进缺血再灌注损伤肝组织中IL-10蛋白及mRNA的高表达,从而起到抑制炎症的作用;落新妇甙干预能促进缺血再灌注损伤肝组织SOCS-1蛋白和mRNA的表达,显示其可能通过上调SOCS-1负调节通路,产生抑制炎症的作用.
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