Nephro-protective effects of alpha-lipoic acid in type I diabetes

J Biochem Mol Toxicol. 2024 Apr;38(4):e23712. doi: 10.1002/jbt.23712.

Abstract

Type 1 diabetes (T1D) is an insulin-dependent autoimmune condition. Short chain fatty acids (SCFAs) are volatile fatty acids with 1-6 carbon atoms that influence glucose storage in the body and can reduce appetite, potentially decreasing T1D risk. Alpha-lipoic acid (α-LA), a type of SCFA, has previously been used to treat diabetic neuropathy and inflammation due to its antioxidant properties. This study aims to assess α-LA's protective effects against T1D and associated kidney damage in rats induced with streptozotocin. Diabetic rats were treated with α-LA orally for 15 days, resulting in improved blood glucose (56% decrease) and kidney function markers like blood urea nitrogen, creatinine and uric acid. α-LA also showed significant antioxidant effects by decreasing LPO as well as improving activities of antioxidant enzymes like superoxide dismutase, catalase and glutathione-S transferase and alleviated kidney damage caused by diabetes. Docking experiments suggest that α-LA may regulate diabetes-related changes at the epigenetic level through interactions with the SIRT1 protein, indicating its potential as a target for future antidiabetic drug development.

Keywords: SCFA; catalase; histopathology; lipid peroxidation; lipoid acid; type 1 diabetes.

MeSH terms

  • Animals
  • Antioxidants / metabolism
  • Blood Glucose / metabolism
  • Catalase / metabolism
  • Diabetes Mellitus, Experimental* / metabolism
  • Diabetes Mellitus, Type 1* / drug therapy
  • Kidney Diseases*
  • Lipid Peroxidation
  • Oxidative Stress
  • Rats
  • Rats, Wistar
  • Superoxide Dismutase / metabolism
  • Thioctic Acid* / pharmacology
  • Thioctic Acid* / therapeutic use

Substances

  • Thioctic Acid
  • Antioxidants
  • Catalase
  • Blood Glucose
  • Superoxide Dismutase