首页> 外文期刊>Journal of biochemical and molecular toxicology >Effect of histidine on autotaxin activity in experimentally induced liver fibrosis.
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Effect of histidine on autotaxin activity in experimentally induced liver fibrosis.

机译:组氨酸对实验性肝纤维化中自分泌运动活性的影响。

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The aim of this study was to explain whether serum autotaxin (ATX) activity might be a target for regulation of liver fibrosis and to evaluate the hepatoprotective and antifibrotic effects of histidine in thioacetamide (TAA)-induced liver fibrosis in rats. This study was carried out on 100 Wistar Albino rats, classified into five groups, each containing 20 rats: Group I (control group), Group II: rats were given histidine intraperitoneally, Group III: rats were injected intraperitoneally with TAA, Group IV: rats were injected with L-histidine together with TAA, and Group V: rats were injected with TAA for 1 month then treated with intraperitoneal injection of L-histidine for another month. At the end of experiment, blood and liver were collected for determination of some liver enzymes, plasma total antioxidant capacity (TAC), serum ATX activity, and liver tissue hydroxyproline. Thioacetamide treatment caused significant increases in liver enzymes, ATX activities, and liver hydroxyproline, but a significant decrease in plasma's TAC. Upon treatment with histidine, a significant decrease in liver enzymes, ATX activities, and liver hydroxyproline was observed with a significant increase in plasma TAC in Group IV and a significant decrease in Group V. Histidine as an antioxidant has a protective effect on TAA-induced liver fibrosis; it is beneficial in rats not only by inhibition of collagen synthesis and increasing TAC but also by inhibition of ATX activities thus reducing its capacity to produce lysophosphatidic acid, which has a role in liver fibrosis.
机译:这项研究的目的是解释血清自分泌运动素(ATX)活性是否可能是调节肝纤维化的靶标,并评估组氨酸在硫代乙酰胺(TAA)诱导的大鼠肝纤维化中的保肝和抗纤维化作用。这项研究是针对100只Wistar Albino大鼠进行的,分为5组,每组包含20只大鼠:I组(对照组),II组:腹膜内给予组氨酸,III组:腹膜内注射TAA,IV组:给大鼠注射L-组氨酸和TAA,和第V组:给大鼠注射TAA 1个月,然后再腹膜内注射L-组氨酸再治疗1个月。在实验结束时,收集血液和肝脏以测定一些肝脏酶,血浆总抗氧化能力(TAC),血清ATX活性和肝脏组织羟脯氨酸。硫代乙酰胺治疗引起肝酶,ATX活性和肝羟脯氨酸的显着增加,但血浆TAC显着下降。用组氨酸治疗后,观察到肝酶,ATX活性和肝羟脯氨酸显着下降,第IV组血浆TAC显着增加,而第V组显着下降。组氨酸作为抗氧化剂对TAA诱导的有保护作用肝纤维化它不仅通过抑制胶原蛋白合成和增加TAC而对大鼠有益,而且还通过抑制ATX活性从而降低其产生溶血磷脂酸的能力,而溶血磷脂酸在肝纤维化中起作用。

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