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  • Title: Antioxidant vitamin status during pregnancy in relation to cognitive development in the first two years of life.
    Author: Chen K, Zhang X, Wei XP, Qu P, Liu YX, Li TY.
    Journal: Early Hum Dev; 2009 Jul; 85(7):421-7. PubMed ID: 19286336.
    Abstract:
    OBJECTIVE: To investigate the correlation of the antioxidant vitamins status (vitamins A, E and C) during pregnancy and the intellectual development of early childhood. METHOD: A total of 150 paired maternal-neonatal subjects were recruited into the present study. The serum concentrations of antioxidant vitamins (vitamins A, E and C) in maternal blood and cord blood after delivery were determined by high performance liquid chromatography and the intellectual development was evaluated by Gesell Development Schedules (GDS) at two-years-old. RESULT: Children with higher cord serum vitamin E level showed higher scores of motor, adaptive domain and average compared to children with lower cord serum vitamin E level (p<0.01 or 0.05), respectively. Cord serum vitamin A level had significant positive correlation with effect on motor DQs (beta=4.227, p<0.05), and vitamin E level in cord blood showed a positive relation with motor DQ and average DQ (beta=0.329 and 0.1875, respectively, p<0.05) in multiple linear regression model. The language and social DQs were influenced by placental vitamin E transport rate (beta=3.1968 and 3.0194, respectively, p<0.05). The placental transport rate of vitamin E also was a protective factor for the prevalence of motor behavior developmental delay [OR: 0.118, 95% confident interval (95% CI), 0.018-0.765, p=0.0251], personal and social behavior developmental delay (OR: 0.052, 95% CI: 0.004-0.610, p=0.0185) and average developmental delay (OR: 0.041, 95% CI: 0.003-0.642, p=0.0229) in logistic multiple regression model. CONCLUSION: Data suggested that vitamin A, E status and vitamin E transfer rate at delivery had beneficial influence on children's cognitive and behavior development quotients.
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