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The role of mTOR and oral intervention of combined Zingiber officinale-Terminalia chebula extract in type 2 diabetes rat models.
Journal of Food Biochemistry ( IF 3.5 ) Pub Date : 2020-05-27 , DOI: 10.1111/jfbc.13250
Jayasindu Mathiyazhagan 1 , Gothandam Kodiveri Muthukaliannan 1
Affiliation  

The present study examined the potential of Zingiber officinale‐Terminalia chebula extract alone (ZO and TC) and in combination (ZOTC) against type 2 diabetes via downregulation of mechanistic target of rapamycin (mTOR). The 1:4 (ZOTC) ratio showed high cell survival percentage against the rat insulinoma cell line (RIN‐5F) when compared to other possible ratios of ZOTC. Oral administration of ZO alone, TC alone, combined ZOTC (1:4), and the positive control metformin (Met) in fructose‐streptozotocin (STZ) ‐induced diabetic rats showed reduced blood glucose levels, reduced insulin resistance (HOMA‐IR), increased insulin levels, and increased pancreatic beta cell function (HOMA‐β). ZOTC treatment in diabetic rats ameliorated the antioxidant status without affecting liver and serum parameters. Histological evaluation of the pancreas was performed to find pathological changes; the transcriptional and immunohistochemistry results showed reduced mTOR expression in the pancreas during ZOTC treatment. Conclusively, the results obtained suggest that ZOTC treatment against fructose‐STZ‐induced type 2 diabetes rat models can help regulate blood glucose, insulin levels, and normalize pancreatic β cell damage.

中文翻译:


mTOR 的作用以及姜-榄仁提取物联合口服干预在 2 型糖尿病大鼠模型中的作用。



本研究探讨了生姜-榄仁提取物单独(ZO 和 TC)和组合(ZOTC)通过下调雷帕霉素(mTOR)机制靶点对抗 2 型糖尿病的潜力。与其他可能的 ZOTC 比例相比,1:4 (ZOTC) 比例对大鼠胰岛素瘤细胞系 (RIN-5F) 显示出较高的细胞存活率。在果糖链脲佐菌素 (STZ) 诱导的糖尿病大鼠中口服单独 ZO、单独 TC、联合 ZOTC (1:4) 和阳性对照二甲双胍 (Met) 表现出血糖水平降低、胰岛素抵抗降低 (HOMA-IR) ,胰岛素水平增加,胰腺β细胞功能(HOMA-β)增强。 ZOTC 治疗糖尿病大鼠可改善抗氧化状态,而不影响肝脏和血清参数。对胰腺进行组织学评估以发现病理变化;转录和免疫组织化学结果显示 ZOTC 治疗期间胰腺中 mTOR 表达减少。总之,获得的结果表明 ZOTC 治疗果糖 STZ 诱导的 2 型糖尿病大鼠模型可以帮助调节血糖、胰岛素水平并使胰腺 β 细胞损伤正常化。
更新日期:2020-05-27
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