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  • Title: Serum copper and zinc levels in mothers and cord blood of their newborn infants with neural tube defects: a case-control study.
    Author: Zeyrek D, Soran M, Cakmak A, Kocyigit A, Iscan A.
    Journal: Indian Pediatr; 2009 Aug; 46(8):675-80. PubMed ID: 19430086.
    Abstract:
    OBJECTIVES: To measure the cord blood and maternal serum levels of folic acid, vitamin B12, zinc, copper, selenium and lead in infants born with neural tube defect (NTD), and to examine a possible relationship between the nutriture of these micronutrients and occurrence of neural tube defect. DESIGN: Case-control study. METHODS: Maternal serum and cord blood samples were obtained at delivery from 70 healthy mothers and 74 mothers who had a newborn with NTD. RESULTS: The mean (+/- SD) maternal serum zinc level in the NTD group was significantly lower than that of the control group (835.6 microg/L (+/- 333.8 /L vs. 1035.7 microg/L (+/- 299.8 g/ L, P=0.004, respectively). The mean maternal and cord serum copper levels in the NTD group were significantly higher when compared to the control group (2831.1 microg/L (+/- 1017 g/L vs. 2402 microg/L (+/- 744.2 microg/L; P=0.03; and 789.8 microg/L vs 517.2 microg/L, P < 0.001, respectively). There was a negative correlation between the cord levels of folic acid and copper in the NTD group with the respective maternal serum levels (r=-0.289; P=0.018). CONCLUSIONS: High maternal serum levels of copper and lower level of zinc during pregnancy associated with NTD in newborn.
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