Supplementation of L-Arginine, L-Glutamine, Vitamin C, Vitamin E, Folic Acid, and Green Tea Extract Enhances Serum Nitric Oxide Content and Antifatigue Activity in Mice.
Yi-Ming ChenHuashuai LiYen-Shuo ChiuChi-Chang HuangWen-Chyuan ChenPublished in: Evidence-based complementary and alternative medicine : eCAM (2020)
It has been reported that abundant nitric oxide content in endothelial cells can increase exercise performance. The purpose of this study was to evaluate the potential beneficial effects of a combined extract comprising L-arginine, L-glutamine, vitamin C, vitamin E, folic acid, and green tea extract (LVFG) on nitric oxide content to decrease exercise fatigue. Male ICR (Institute of Cancer Research) mice were randomly divided into 4 groups and orally administered LVFG for 4 weeks. The 4-week LVFG supplementation significantly increased serum nitric oxide content in the LVFG-1X and LVFG-2X groups. Antifatigue activity and exercise performance were evaluated using forelimb grip strength, exhaustive swimming test, and levels of serum lactate, ammonia, glucose, and creatine kinase (CK) after an acute swimming exercise. LVFG supplementation dose-dependently improved exercise performance and nitric oxide content, and it dose-dependently decreased serum ammonia and CK activity after exhaustive swimming test. LVFG's antifatigue properties appear to manifest by preserving energy storage (as blood glucose) and increasing nitric oxide content. Taken together, our results show that LVFG could have the potential for alleviating physical fatigue due to its pharmacological effect of increasing serum nitric oxide content.
Keyphrases
- nitric oxide
- nitric oxide synthase
- high intensity
- blood glucose
- physical activity
- hydrogen peroxide
- endothelial cells
- oxidative stress
- squamous cell carcinoma
- type diabetes
- metabolic syndrome
- anti inflammatory
- adipose tissue
- clinical trial
- body composition
- depressive symptoms
- acute respiratory distress syndrome
- study protocol
- drug induced
- tyrosine kinase
- insulin resistance
- human health
- room temperature
- risk assessment
- weight loss
- anaerobic digestion
- extracorporeal membrane oxygenation
- aortic dissection
- high glucose