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Minerva Ginecologica 2010 April;62(2):91-6


language: English

Vitamin D at term of pregnancy and during lactation in white and black women living in Northern Italy

Gaggero M. 1, Mariani L. 2, Guarino R. 3, Patrucco G. 4, Ballardini G. 1, Boscardini L. 1, Barbaglia M. 1, Bello L. 2, Guala A. 1

1 Department of Pediatrics, Castelli Hospital, Verbania, Italy; 2 Obstetrics and Gynecology Department, Castelli Hospital, Verbania, Italy; 3 Department of Pediatrics, Hospital of Taormina, Messina, Italy; 4 Laboratory of Medical Biochemistry and Clinical Analysis, S. Andrea Hospital, Vercelli, Italy


AIM: Evaluate the vitamin D serum status in a population of white and black mothers who live in the same geographic area of northern Italy (45° 8’ N of latitude) and its correlation with vitamin D serum concentrations of the respective newborns at birth, at 2 and 12 months.
METHODS: Twelve white woman-infant pairs and 12 black woman-infant pairs were recruited from January through March 2006. The study population had no pre-existing disease and delivered at term of pregnancy (37-41 weeks of gestational age). Only black infants were given vitamin D supplementation from birth to 1 year of age.
RESULTS: Eleven black and 12 white women had low vitamin D serum levels at term of pregnancy. Similarly, black and white newborns were both vitamin D deficient at birth. After 12 months white women re-gained phisiological vitamin D serum levels, whereas black women maintained a status of vitamin D deficiency. Black newborns who were given supplementation showed lower vitamin D serum concentrations as compared with white newborns at 1 year of age.
CONCLUSION: These data showed that all the women living in the same region of northern Italy without any supplementation are equally vitamin D deficient at term of pregnancy regardless of their skin pigmentation. Conse-quently, every woman should be supplied with additional vitamin D during pregnancy and lactation, though such supplementation seems to exert the most beneficial effects in black women.

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