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Supplementation of Abelmoschus manihot Ameliorates Diabetic Nephropathy and Hepatic Steatosis by Activating Autophagy in Mice

1
Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
2
Department of Convergence Medical Sciences, Institute of Health Sciences, Gyeongsang National University Graduate School, Jinju 52727, Korea
3
Department of Food Science, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
*
Author to whom correspondence should be addressed.
Nutrients 2018, 10(11), 1703; https://doi.org/10.3390/nu10111703
Received: 5 October 2018 / Revised: 28 October 2018 / Accepted: 6 November 2018 / Published: 7 November 2018
Diabetic nephropathy (DN) is a diabetic complication marked by albuminuria and a decline of the glomerular filtration rate. Diabetic kidneys are defective in the autophagy process and mitochondrial function and their enhancement of activity alleviates the pathology. In this paper, we developed a mouse model of DN by a combined treatment of a high-fat diet and streptozotocin after unilateral nephrectomy and supplementation with flower or leaf extracts of Abelmoschus manihot (AM) were tested. The preventive effects of the extracts on DN pathology and changes on autophagy and mitochondrial proteins were investigated. DN mice showed a significant increase in fasting blood glucose, plasma creatinine, blood urea nitrogen, and urinary albumin levels. Periodic acid–Schiff and Sirius red staining of the diabetic kidney presented a significant change in glomerular and tubular structures that was associated with podocyte loss and fibrotic protein accumulation. These changes were attenuated by AM extract treatment in DN mice. In addition, hepatic injury, proinflammatory cytokines, and lipid accumulation were decreased by AM extracts in DN mice. As a protective mechanism, AM extracts significantly increased the expression of proteins by regulating autophagy and mitochondrial dynamics, which potentially prevented the kidney and liver from accumulating pathogenic proteins and dysfunctional mitochondria, which alleviated the progression of DN. View Full-Text
Keywords: Abelmoschus manihot; autophagy; diabetic nephropathy; mitochondrial fission-fusion; steatosis Abelmoschus manihot; autophagy; diabetic nephropathy; mitochondrial fission-fusion; steatosis
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MDPI and ACS Style

Kim, H.; Dusabimana, T.; Kim, S.R.; Je, J.; Jeong, K.; Kang, M.C.; Cho, K.M.; Kim, H.J.; Park, S.W. Supplementation of Abelmoschus manihot Ameliorates Diabetic Nephropathy and Hepatic Steatosis by Activating Autophagy in Mice. Nutrients 2018, 10, 1703. https://doi.org/10.3390/nu10111703

AMA Style

Kim H, Dusabimana T, Kim SR, Je J, Jeong K, Kang MC, Cho KM, Kim HJ, Park SW. Supplementation of Abelmoschus manihot Ameliorates Diabetic Nephropathy and Hepatic Steatosis by Activating Autophagy in Mice. Nutrients. 2018; 10(11):1703. https://doi.org/10.3390/nu10111703

Chicago/Turabian Style

Kim, Hwajin, Theodomir Dusabimana, So R. Kim, Jihyun Je, Kyuho Jeong, Min C. Kang, Kye M. Cho, Hye J. Kim, and Sang W. Park. 2018. "Supplementation of Abelmoschus manihot Ameliorates Diabetic Nephropathy and Hepatic Steatosis by Activating Autophagy in Mice" Nutrients 10, no. 11: 1703. https://doi.org/10.3390/nu10111703

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