PMID- 35286963 OWN - NLM STAT- MEDLINE DCOM- 20220427 LR - 20220427 IS - 1950-6007 (Electronic) IS - 0753-3322 (Linking) VI - 149 DP - 2022 May TI - Supplementation of conventional anti-diabetic therapy with alpha-lipoic acid prevents early development and progression of diabetic nephropathy. PG - 112818 LID - S0753-3322(22)00206-2 [pii] LID - 10.1016/j.biopha.2022.112818 [doi] AB - BACKGROUND: Diabetic nephropathy (DN) is the leading cause of end-stage renal disease. Current pharmacological interventions only retard DN progression. Alpha-lipoic acid (ALA) is a potent antioxidant with beneficial effect in other diabetic complications. This study investigates whether ALA supplementation prevents early development and progression of DN. METHOD: Fifty-eight male Sprague-Dawley rats were randomly assigned to healthy control and diabetic groups and subjected to overnight fasting. Type 2 diabetes mellitus (T2DM) was induced in diabetic group by intraperitoneal administration of nicotinamide (110 mg/kg) and streptozotocin (55 mg/kg). On day 3 after T2DM induction, diabetic rats received oral daily administration of ALA (60 mg/kg), gliclazide (15 mg/kg), ramipril (10 mg/kg) or drug combinations for 6 weeks. Untreated diabetic rats served as diabetic control. Blood, kidneys and pancreas were harvested for biochemical and histological analyses. RESULT: Induction of T2DM resulted in hypoinsulinemia, hyperglycemia and renal pathology. ALA supplementation maintained beta-cell function, normoinsulinemia and normoglycemia in diabetic rats, and prevented renal pathology (PAS, KIM-1, plasma creatinine, total protein, blood urea nitrogen, uric acid and urine albumin/creatinine ratio) and triglycerides level compared to diabetic control (p < 0.001). Additionally, ALA supplementation significantly prevented elevated serum and tissue malondialdehyde, collagen deposition, alpha-SMA expression, apoptosis and serum IL-1beta and IL-6 levels while it markedly increased renal glutathione content and plasma HDL-C compared to diabetic control group (p < 0.001). CONCLUSION: ALA supplementation prevents early development and progression of DN by exerting anti-hyperglycemic, antioxidant, anti-inflammatory, anti-fibrotic and anti-apoptotic effects. Our findings provide additional option for clinical treatment of DN in T2DM patients. CI - Copyright (c) 2022 The Authors. Published by Elsevier Masson SAS.. All rights reserved. FAU - Dugbartey, George J AU - Dugbartey GJ AD - Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. Electronic address: gjdugbartey@ug.edu.gh. FAU - Alornyo, Karl K AU - Alornyo KK AD - Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. FAU - N'guessan, Benoit B AU - N'guessan BB AD - Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. FAU - Atule, Stephen AU - Atule S AD - Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. FAU - Mensah, Samuel D AU - Mensah SD AD - Department of Pathology, University of Ghana Dental School, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. FAU - Adjei, Samuel AU - Adjei S AD - Department of Animal Experimentation, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra, Ghana. LA - eng PT - Journal Article DEP - 20220311 PL - France TA - Biomed Pharmacother JT - Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie JID - 8213295 RN - 0 (Antioxidants) RN - 73Y7P0K73Y (Thioctic Acid) RN - AYI8EX34EU (Creatinine) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Creatinine MH - *Diabetes Mellitus, Experimental/complications/drug therapy/metabolism MH - *Diabetes Mellitus, Type 2/complications/drug therapy/metabolism MH - *Diabetic Nephropathies/drug therapy/metabolism/prevention & control MH - Dietary Supplements MH - Female MH - Humans MH - Kidney MH - Male MH - Rats MH - Rats, Sprague-Dawley MH - *Thioctic Acid/pharmacology/therapeutic use OTO - NOTNLM OT - Alpha-lipoic acid (ALA) OT - Conventional anti-diabetic therapy OT - Diabetic nephropathy (DN) OT - Triple combination therapy OT - Type 2 diabetes mellitus (T2DM) EDAT- 2022/03/15 06:00 MHDA- 2022/04/28 06:00 CRDT- 2022/03/14 20:11 PHST- 2022/01/08 00:00 [received] PHST- 2022/03/07 00:00 [revised] PHST- 2022/03/09 00:00 [accepted] PHST- 2022/03/15 06:00 [pubmed] PHST- 2022/04/28 06:00 [medline] PHST- 2022/03/14 20:11 [entrez] AID - S0753-3322(22)00206-2 [pii] AID - 10.1016/j.biopha.2022.112818 [doi] PST - ppublish SO - Biomed Pharmacother. 2022 May;149:112818. doi: 10.1016/j.biopha.2022.112818. Epub 2022 Mar 11.