Related Experiment Videos
Five cysteine-containing compounds have antioxidative activity in Balb/cA mice
Cheng-chin Hsu1, Chien-ning Huang, Yu-chuan Hung
1Department of Nutritional Science, Chungshan Medical University, Taichung City, Taiwan.
The Journal of Nutrition
|January 6, 2004
Summary
Garlic-derived cysteine compounds boost antioxidant enzymes and reduce harmful lipids in mice. These compounds show potential for cardiovascular disease prevention and therapy.
Area of Science:
- Biochemistry
- Pharmacology
- Nutritional Science
Background:
- Garlic contains cysteine derivatives with potential health benefits.
- Oxidative stress and dyslipidemia are key factors in cardiovascular disease.
- Antioxidant enzymes like glutathione (GSH), catalase, and glutathione peroxidase (GPX) play crucial roles in cellular protection.
Purpose of the Study:
- To investigate the in vivo effects of five garlic-derived cysteine compounds on antioxidant status and lipid profiles in mice.
- To compare the effects of these compounds with cysteine alone.
- To evaluate their potential for cardiovascular disease prevention.
Main Methods:
- Balb/cA mice were administered cysteine or five garlic-derived cysteine compounds (N-acetyl cysteine, S-allyl cysteine, S-ethyl cysteine, S-methyl cysteine, S-propyl cysteine) in drinking water for 4 weeks.
- Measurements included plasma, kidney, and liver concentrations of GSH, activities of catalase and GPX, and levels of fibronectin, triglyceride (TG), cholesterol, and alpha-tocopherol.
- Lipid oxidation was assessed using Fe2+- and glucose-induced assays.
Main Results:
- Garlic-derived cysteine compounds significantly increased GSH levels and enhanced catalase and GPX activities in the kidney and liver compared to controls.
- These compounds reduced Fe2+- and glucose-induced lipid oxidation in plasma, kidney, and liver.
- Fibronectin, TG, and cholesterol concentrations were reduced, while alpha-tocopherol levels increased in plasma and liver following treatment with the garlic compounds.
Conclusions:
- Garlic-derived cysteine compounds exhibit significant antioxidant properties by modulating antioxidant enzymes and sparing alpha-tocopherol.
- These compounds effectively reduce key cardiovascular risk factors, including dyslipidemia and fibronectin levels.
- The findings suggest that these garlic-derived compounds hold promise for cardiovascular disease prevention and therapeutic strategies.