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Endocrinol Metab : Endocrinology and Metabolism


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Jahei Ihm  (Ihm J) 1 Article
Effects of S-allylcysteine on Oxidative Stress in Streptozotocin-Induced Diabetic Rats.
Chul Ho Shin, Jahei Ihm
J Korean Endocr Soc. 2008;23(2):129-136.   Published online April 1, 2008
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AbstractAbstract PDF
An increase in oxidative stress is postulated to contribute to the development of diabetic complications and the use of antioxidant therapy could be protective against these processes. This study was performed to investigate the role of the antioxidant S-allylcysteine (SAC), a water-soluble component of aged garlic, for reducing levels of oxidative stress that occurs in diabetic rats. METHODS: SAC (100 mg/head/day) was administered orally to streptozotocin-induced diabetic rats for eight weeks. The effects of SAC on the levels of markers of oxidative stress (malondialdehyde and glutathione) and mRNA expression of antioxidant enzymes were measured in the liver and kidney. RESULTS: SAC-fed rats showed lower cholesterol and triacylglyceride levels than untreated diabetic rats. Malondialdehyde levels were increased in the liver and kidney of diabetic rats and SAC administration lowered the levels in both organs. Glutathione levels were lower in the liver and kidney of diabetic rats, and SAC administration restored the glutathione to a level similar in non-diabetic rats. In the liver and kidney of untreated diabetic rats, mRNA expression of catalase, superoxide dismutase and glutathione reductase were down regulated, and administration of SAC increased expression of these enzymes. CONCLUSION: Our results have shown that administration of SAC to diabetic rats can lower blood lipid levels and alleviate oxidative stress in the diabetic tissues, suggesting that SAC might have beneficial effects in a prevention trial for diabetic complications.


Citations to this article as recorded by  
  • Effect of Garlic and Aged Black Garlic on Hyperglycemia and Dyslipidemia in Animal Model of Type 2 Diabetes Mellitus
    Yeong-Ju Seo, Oh-Cheon Gweon, Ji-Eun Im, Young-Min Lee, Min-Jung Kang, Jung-In Kim
    Preventive Nutrition and Food Science.2009; 14(1): 1.     CrossRef
  • Antioxidant effect of garlic and aged black garlic in animal model of type 2 diabetes mellitus
    Young-Min Lee, Oh-Cheon Gweon, Yeong-Ju Seo, Jieun Im, Min-Jung Kang, Myo-Jeong Kim, Jung-In Kim
    Nutrition Research and Practice.2009; 3(2): 156.     CrossRef
  • Effects of Adenophora triphylla Ethylacetate Extract on mRNA Levels of Antioxidant Enzymes in Human HepG2 Cells
    Hyun-Jin Choi, Soo-Hyun Kim, Hyun-Taek Oh, Mi-Ja Chung, Cheng-Bi Cui, Seung-Shi Ham
    Journal of the Korean Society of Food Science and Nutrition.2008; 37(10): 1238.     CrossRef
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