Anti-fatigue Function of Pine Pollen. Liu Xie (2004) Chinese Journal of Biochemical Pharmaceutics, CDC, Jiangsu Province, China.
This research was done to evaluate the influence of Pine Pollen on the swimming time of mice, a common method of accessing fatigue and stress in the laboratory. Researcher Liu fed Pine Pollen to the mice in dosages of 100, 500, and 1000mg/kg, and then tested the loaded swimming time of each group as well as the blood content of lactic acid, hepatic glycogen, and urea nitrogen, after 30 days feeding of each group.
The result demonstrate that Pine Pollen greatly extended the swimming time of the weight loaded mice (P <0.01) and greatly decreased the post exercise content of blood lactic acid and urea nitrogen (P<0.05,P<0.01). Furthermore, Pine Pollen showed to positively influence the content of hepatic glycogen (P<0.01). These tests conclude the anti-fatiguing effect of Pine Pollen.
Research has shown that an increase in skeletal muscle free radicals and other forms of reactive oxygen caused by exercises is one of the important factors resulting in skeletal muscle damage and fatigue.
Antioxidant supplements can effectively inhibit this change and improve exercise performance, which has propelled the significanceof antioxidants in exercise nutrition. Pine Pollen is rich in large amounts of the antioxidants vitamin E, beta carotene, the microelement selenium, and other various flavonoids which play an important role to eliminate the free radical caused by exercises. In particular, selenium helping the synthesis of glutathione peroxidase(GSH-Px) (an enzyme family with peroxidase activity whose main biological role is to protect the organism from oxidative damage). Vitamin E and selenium have a synergetic antioxidant effect to protect the body from free radical damage, reduce lipid peroxidation and maintain the structure and function of skeletal muscle, myocardium and other organs.
Beta carotene is currently known as the strongest single oxygen scavenger, which could alleviate the degree of lipid peroxide reaction. Pine Pollen contains rich antioxidant ingredients that can decrease the concentration of free radical after exercises and then alleviate the damage from free radicals, thus slowing down fatigue post exercise.
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