自1992年11月23日至12月28日,本文测定了30例正常产妇母血、母乳及其相应30例正常新生儿脐血中自由基捕捉剂SOD、V_E、V_c含量与活性,以及能够反映预防性抗氧化剂活性水平的指标“抗氧化活性”(简称AOA),结果表明:新生儿脐血无论是预防性抗氧化剂水平还是自由基捕捉剂水平均较低下,母乳则具较高水平。提示:母乳作为新生儿营养的重要来源,可能提供新生儿较多的抗氧物质,对于改善新生儿低下的抗氧状态有非常重要的意义。 From November 23, 1992 to December 28, 1992, the content and activity of free radical scavenger SOD, V_E and V_c in 30 normal maternal blood, breast milk and their corresponding normal neonates were determined, Antioxidant activity (AOA), a measure of the level of prophylactic anti-oxidant activity, showed that neonatal umbilical cord blood had a high level of either low levels of both prophylactic antioxidants and free-radical scavengers, . Tip: Breast milk, as an important source of newborn nutrition, may provide more newborn anti-oxidants, to improve the low neonatal oxygen status is of great significance.