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Written By: Agencies | Published : May 19, 2014 5:44 PM IST
Researchers have suggested that supplemental vitamin C taken by pregnant smokers improved measures of lung function for newborns and decreased the incidence of wheezing for infants through 1 year. Cindy T. McEvoy, M.D., M.C.R., of Oregon Health and Science University, Portland, and colleagues randomly assigned pregnant smokers to receive vitamin C (500 mg/d) (n = 89) or placebo (n = 90). One hundred fifty-nine newborns of pregnant smokers (76 vitamin C treated and 83 placebo treated) and 76 newborns (reference group) of pregnant nonsmokers were studied with newborn PFTs (performed within 72 hours of age). (Read: Smoking during pregnancy can put your baby at risk of respiratory and other infections)
The researchers found that newborns of women randomized to vitamin C, compared with those randomized to placebo, had improved measures of pulmonary function. Offspring of women randomized to vitamin C had significantly decreased wheezing through age 1 year (15/70 [21 percent] vs 31/77 [40 percent]. There were no significant differences in the 1-year PFT results between the vitamin C and placebo groups. 'Although smoking cessation is the foremost goal, most pregnant smokers continue to smoke, supporting the need for a pharmacologic intervention,' the authors write. Other studies have demonstrated that reduced pulmonary function in offspring of smokers continues into childhood and up to age 21 years. 'This emphasizes the important opportunity of in-utero intervention.Individuals who begin life with decreased PFT measures may be at increased risk for chronic obstructive pulmonary disease.' (Read: Five ways smoking during pregnancy can harm your baby)
'Vitamin C supplementation in pregnant smokers may be an inexpensive and simple approach (with continued smoking cessation counseling) to decrease some of the effects of smoking in pregnancy on newborn pulmonary function and ultimately infant respiratory morbidities, but further study is required,' the researchers conclude. (Read: Smoking during pregnancy could give your child a heart defect)
The study has been published in JAMA.
Source: ANI
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