Résumé
Serum zinc was estimated in the cord blood of 60 neonates of different gestational age and birth weight, and their mothers. Mean serum zinc levels in neonates FTGA, PTAGA and term SGA were 128.88 +/- 14.37, 94.32 +/- 17.79 and 111.8 +/- 9.2 ug/dl respectively. The maternal serum zinc levels in corresponding groups was 96.28 +/- 19.48, 115.44 +/- 15.41 and 93.8 +/- 7.62 ug/dl. Thus mean serum zinc level in cord blood of FT AGA newborns was significantly higher than that in PT AGA and FT SGA. Mean serum zinc level in mothers of FT AGA was significantly lower than that in mothers of PT AGA. However, there was no significant difference between the maternal serum zinc levels of FT AGA and FT SGAs. There was positive correlation between gestational age and serum zinc level in cord blood of AGAs while correlation was negative in case of their mothers. There was positive correlation between weight (keeping gestational age constant) and serum zinc level in case of neonates while corresponding maternal zinc levels did not vary. (FT AGA and FT SGA).