Concentrations of ascorbic acid in the plasma of pregnant smokers and nonsmokers and their newborns

Auteur(s) :
De Oliveira AM., Rondo PHD., Barros SBD.
Date :
Mai, 2004
Source(s) :
NUTRITION RESEARCH. #74:3 p193-198
Adresse :
Reprints: DE OLIVEIRA AM;AV DR ARNOLDO 715;BR-01246901 SAO PAULO, BRAZIL. andmo@usp.br Research Institutions: Univ Sao Paulo, Sch Publ Hlth, Dept Nutr, BR-01246904 Sao Paulo, Brazil. Univ Sao Paulo, Dept Clin & Toxicol Anal & Pharmaceut Sci, BR-05508900 Sao Paulo, Brazil. Discipline: ENDOCRINOLOGY, NUTRITION & METABOLISM FOOD SCIENCE/NUTRITION

Sommaire de l'article

Abstract: A cross-sectional study was carried out to determine the differences in vitamin C status of Brazilian pregnant women smokers and nonsmokers and their respective newborn babies, and to assess the prevalence of hypovitaminosis C among these two groups of women. The study involved 127 pregnant women, 40 pregnant smokers and 87 pregnant nonsmokers, admitted to a maternity hospital in Sao Paulo, Brazil. Data concerning the pregnant women’s socioeconomic, demographic, obstetric, and nutritional characteristics were collected, as well as data concerning the newborns’ anthropometry and Apgar scores. A strongly significant correlation (p < 0.001) was found between the concentrations of ascorbic acid (AA) in both pregnant smokers (r = 0.77) and pregnant nonsmokers (r = 0.61) and their respective umbilical cords. The mean umbilical AA concentration was sianificantly higher than the mean AA concentration in pregnant women (92.05 +/- 41.1.3 vs. 33.39 +/- 18.25 gmol/L, p < 0.001). It was observed that the mean AA was significantly lower for the newborns (p = 0.03) and pregnant women (p = 0.02) from the smoking group. Forty percent (40%) of the smokers and 27% of the nonsmokers presented hypovitaminosis C.
We suggest an increase in the consumption of fruits and vegetables by pregnant women, especially the smokers.

Source : Pubmed
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