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The role of the yeast as probiotic in protection against liver injury

机译:酵母作为益生菌在预防肝损伤中的作用

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Saccharomyces cerevisiae?is a well known yeast used safely from ancient times in many biotechnological applications. Nowadays, there is an increasing interest in using yeast as probiotic. Dimethyl nitrosamine (DMN) has been used to induce liver fibrosis in rats. Yeast has been used side by side with the DMN to evaluate the role of its use as a probiotic in the protection against liver fibrosis. Six groups of rats have been used to represent negative and positive controls and other four groups which have been treated by DMN for two weeks and killed after 35 or 60 days. Two of the DMN treatment groups have been fed by yeast from the first 35 to 60 days, respectively. The results show that yeast has no side effect on each of glutamate-oxaloacetate-transaminase (GOT), glutamate-pyruvate-transaminase (GPT) and?alkaline phosphatase?(ALP) enzyme activities. DMN showed a significant effect on those enzymes. Feeding with yeast for 35 days showed a minor improvement, while feeding them for 60 days showed a significant improvement. Moreover, the expressions of interleukin 1-alpha (IL-1ɑ) and interleukin-7 receptor (IL-7r) have been evaluated usingreverse transcription polymerase chain reaction?(RT-PCR). The study includes also the analysis of liver histopathology. This study shows the importance of using yeasts as probiotics in the protection against liver injury.
机译:酿酒酵母(Saccharomyces cerevisiae)是一种众所周知的酵母,自古以来就在许多生物技术应用中安全使用。如今,人们越来越关注使用酵母作为益生菌。二甲基亚硝胺(DMN)已用于诱导大鼠肝纤维化。酵母已与DMN一起使用,以评估其作为益生菌在预防肝纤维化中的作用。已经使用六组大鼠来代表阴性和阳性对照,而其他四组已经通过DMN治疗了两周,并在35天或60天后被杀死。在开始的35到60天中,分别用酵母喂养了两个DMN治疗组。结果表明,酵母对谷氨酸-草酰乙酸-转氨酶(GOT),谷氨酸-丙酮酸-转氨酶(GPT)和“碱性磷酸酶”(ALP)的酶活性均无副作用。 DMN对那些酶显示出显著作用。饲喂酵母35天显示轻微改善,而饲喂60天则显示明显改善。此外,已经使用逆转录聚合酶链反应(RT-PCR)评估了白介素1-α(IL-1α)和白介素-7受体(IL-7r)的表达。该研究还包括肝组织病理学分析。这项研究表明了使用酵母作为益生菌来预防肝损伤的重要性。

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