Blood samples were drawn every hour during each course for determining plasma total ascorbic acid(TAA),ratio of dehydroascorbic acid(DHAA) to TAA(DHAA/TAA),vitamin E(Vit E),malondialdehyde(MDA) in both plasma and erythrocytes.

• 每小时取血标本测定血浆总抗坏血酸(TAA)、脱氢型抗坏血酸/总抗坏血酸(DHAA/TAA)、维生素E(VitE)、血浆与红细胞丙二醛(MDA)。