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Coordinated regulation of miR-27 by insulin/CREB/Hippo contributes to insulin resistance.
In this study, we attempted to identify the mechanism by which miR-27 was regulated in the context of insulin resistance, a predisposed metabolic disorder in NAFLD. With cell culture experiments and animal studies, our results showed that miR-27 was coordinately regulated by insulin, CREB, and Hippo signalings. First, miR-27 was upregulated in palmitate-treated cells and high fat diet-fed mouse livers, both of which exhibited insulin resistance and increased CREB expression. Second, miR-27 was peaked in mouse liver at post-absorptive phase when CREB activity was increased. Also, miR-27 was increased rapidly in insulin-trea...
Source: Cellular Signalling - January 27, 2021 Category: Cytology Authors: Chen YJ, Chueh LY, Lee SY, Ma PF, Chen PC, Hsu SH Tags: Cell Signal Source Type: research

Tangshen Formula Alleviates Hepatic Steatosis by Inducing Autophagy Through the AMPK/SIRT1 Pathway
Conclusion In conclusion, the present study demonstrated that autophagy was involved in relieving the effects of TSF against NAFLD, which were mediated by the AMPK/SIRT1 pathway (Figure 7D). These findings may improve our current understanding of the role of TSF in treating hepatic steatosis and provide an experimental basis for the clinical application of TSF in NAFLD and its related metabolic syndrome. Ethics Statement This study was carried out in accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. The protocol was approved by the Ethics Co...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research