Georgeson George D, Szony Barnabás J, Streitman Károly, Varga Ilona Sz, Kovács Attila, Kovács László, László Aranka
Mullikin Medical Center, Artesia, CA 90701, USA.
Eur J Obstet Gynecol Reprod Biol. 2002 Jul 10;103(2):136-9. doi: 10.1016/s0301-2115(02)00050-7.
To investigate the antioxidant defense potential of human neonates according to gestational age and mode of delivery.
Four study groups were established, full-term normal spontaneous vaginal delivery (FT-NSVD, n=24), full-term caesarean section (FT-CS, n=19), preterm normal spontaneous vaginal delivery (PT-NSVD, n=15) preterm caesarean section (PT-CS, n=21). The activity of catalase (CAT), glutathion peroxidase (GPX), Cu/Zn superoxide dismutase (Cu/Zn-SOD) were determined from cord blood. Statistical analysis was made by ANOVA.
CAT activity was significantly higher in full-term than in preterm newborns. In both the categories, neonates born via caesarean section had significantly lower CAT activities. GPX activity was significantly higher in the FT-NSVD group than in any other group. Cu/Zn-SOD activity was significantly higher in full-term neonates than in preterms and no difference was found related to the mode of delivery.
Prematurity and caesarean section may cause a deficiency of antioxidant defense in human newborn.
根据胎龄和分娩方式研究人类新生儿的抗氧化防御潜力。
设立四个研究组,足月正常自然阴道分娩(FT - NSVD,n = 24)、足月剖宫产(FT - CS,n = 19)、早产正常自然阴道分娩(PT - NSVD,n = 15)、早产剖宫产(PT - CS,n = 21)。从脐血中测定过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GPX)、铜/锌超氧化物歧化酶(Cu/Zn - SOD)的活性。采用方差分析进行统计分析。
足月新生儿的CAT活性显著高于早产新生儿。在这两类中,剖宫产出生的新生儿CAT活性均显著较低。FT - NSVD组的GPX活性显著高于其他任何组。足月新生儿的Cu/Zn - SOD活性显著高于早产新生儿,且未发现与分娩方式有关的差异。
早产和剖宫产可能导致人类新生儿抗氧化防御功能不足。