Effect on antioxidant function of onion to reduce pesticides toxicity

It is well known the functional foods are very useful to prevent serious diseases and promote health. Therefore, they are often called as nutraceuticals, designer foods, and pharmafoods, etc. Most of foods have diverse functions because they provide nutrients, energies and fibrinoid materials. When foods are taken in the body, they promote the biological defense system against diseases through the supply of the essential or healthy materials to human being's organs. The mode of action and functional foods in human body have not been clarified yet. Antioxidant is known as one of the therapeutic aids which can be reduced pesticide poisoning. Onion has a strong antioxidant effect. This study was carried out to elucidate an antioxidant function of onion by determination of superoxide dismutase in liver, lung, serum of male rat administered by intraperitonial injection of 0, 2, $4\;mg\;kg^{-1}$ cblorpyrifos after administrated orally with onion for 6 weeks. Damage of liver and kidney was also investigated by biochemical analysis of serum(AST, ALT, BUN/Creatine ratio). SOD(superoxide dismutase) activity of onion-administrated group is higher than control group. In liver and lung, SOD activity of onion+cblorpyrifos administrated group is higher than only chlorpyrifos administrated group. BUN/Creatinine ratio of onion+chlorpyrifos administrated group was decreased compared with only chlorpyrifos-administrated group.

양파의 항산화기능을 이용한 농약 독성경감 효과

천연기능성물질을 함유한 농산물을 활용하여 국민건강을 보호할 수 있는 방안을 모색하기 위해 항산화 및 항암 효과가 있는 것으로 알려진 양파를 이용하여 수컷 rat에서 농약독성 경감효과를 시험하였다. 6주간 양파즙액을 투여한 후 chlorprifos 0, 2, $4\;mg\;kg^{-1}$을 복강내 투여하였다. 간, 폐, 혈청 중 항산화효소인 SOD의 변화를 조사한 결과 양파즙액 투여 후 chlorprifos를 투여한 군이 chlorpyrifos 단독 투여군에 비해 간과 폐의 SOD 활성이 높게 나타나는 것으로 나타나 항산화기능이 증가함을 볼 수 있었다. 혈청 중 BUN/Creatinine ratio를 조사한 결과 양파즙액 투여 후 chlorpyrifos를 투여한 군이 단독 투여군에 비해 수치가 낮게 나타나 신장독성을 감소시킬 수 있을 것으로 판단된다.