...
首页> 外文期刊>Journal of Agricultural and Food Chemistry >Morus alba Leaf Bioactives Modulate Peroxisome Proliferator Activated Receptor gamma in the Kidney of Diabetic Rat and Impart Beneficial Effect
【24h】

Morus alba Leaf Bioactives Modulate Peroxisome Proliferator Activated Receptor gamma in the Kidney of Diabetic Rat and Impart Beneficial Effect

机译:Morus Alba叶生物术后调节过氧化物酶组血型增生剂活化受体γ在糖尿病大鼠的肾脏中,并赋予有益效果

获取原文
获取原文并翻译 | 示例
           

摘要

Peroxisome proliferator activated receptor gamma (PPAR gamma) is a ligand-activated nuclear receptor that can be activated or repressed by several exogenous and endogenous ligands and acts by modulating genes that regulate lipid, glucose, and insulin homeostasis. In kidney, PPAR gamma is involved in normal kidney development and other physiological functions. In our earlier report, we showed that feeding Morus alba leaves to experimental diabetic rats ameliorated diabetic nephropathy and significantly decreased microalbuminuria. In this paper, we have attempted to look into the molecular mechanism involving PPAR gamma modulation by mulberry leaf bioactive compounds by in vitro and in vivo methods and its impact on key inflammatory markers. In vitro assay by TR-FRET suggested that mulberry leaf extracts can serve as a putative modulator of PPAR gamma. High glucose conditions in vitro and in vivo increased PPAR gamma levels, which were ameliorated by mulberry leaves or their extracts. Interestingly, PPAR gamma was significantly phosphorylated at Ser112 by upstream kinases ERK42/44 in kidney of diabetic animals on feeding mulberry leaves. In vitro studies using MDCK cell line revealed that increased Ser112 phosphorylation was observed when cells were treated with bound phenolic acid rich extract but not with free phenolic acid rich extracts. HPLC analysis and bioassay-guided activity revealed that coumaric acid was the bioactive molecule within bound phenolic acid rich extract that was responsible for increased ERK42/44-mediated phosphorylation at Ser112. Furthermore, mulberry leaf bioactive compounds showed beneficial effect on the tested inflammatory markers.
机译:过氧化物体增殖剂活化受体γ(PPARγ)是一种配体活化的核受体,其可以通过几种外源和内源性配体激活或压制,并通过调节脂质,葡萄糖和胰岛素稳态的调节基因作用。在肾脏中,PPARγ参与正常的肾脏发展和其他生理功能。在我们之前的报告中,我们表明,饲喂Morus Alba叶子到实验性糖尿病大鼠改善糖尿病肾病和显着降低的微蛋白尿。在本文中,我们试图研究涉及桑椹叶生物活性化合物的PPARγ调节的分子机制,体内叶片生物活性化合物及其对关键炎症标志物的影响。通过TR-FRET的体外测定表明,桑叶提取物可以作为PPARγ的推定调节剂。高葡萄糖条件在体外和体内增加了PPARγ水平,其被桑叶或其提取物改善。有趣的是,PPARγ在Ser112通过上游激酶ERK42 / 44在糖尿病动物的肾脏患者喂食桑叶的肾脏中显着磷酸化。使用MDCK细胞系的体外研究表明,当用结合的酚醛酸富萃取物处理细胞但不含游离酚酸富萃取物时,观察到增加的Ser112磷酸化。 HPLC分析和生物测定引导的活性显示香豆酸是富含酚醛酸的富含提取物中的生物活性分子,其负责在Ser112的ERK42 / 44介导的磷酸化增加。此外,桑椹叶生物活性化合物对测试的炎性标志物显示有益效果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号