---------- Forwarded message ---------- Date: 25 Nov 98 From: [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Fertility - Exposure to Cigarette Smoke May Affect Fertility Exposure to Cigarette Smoke May Affect Fertility 3.17 p.m. ET (2017 GMT) November 24, 1998 Reuters NEW YORK — Women who smoke may have more trouble conceiving a child than nonsmoking women, Danish researchers report. Their study also suggests that exposure to tobacco smoke before birth impairs fertility in both sexes. Current smoking in males was not found to correlate with reduced fertility, however. "Data from the present study provide evidence that cigarette smoking is a reproductive hazard even prior to pregnancy," conclude Dr. Tina Kold Jensen of Copenhagen University Hospital, Denmark, and colleagues. According to the report, animal studies have shown that compounds in tobacco may interfere with fertilization, implantation, and even early fetal development. However, the mechanism by which smoking can impair the future reproductive potential of a fetus remains uncertain. "A possible effect of exposure in fetal life could be due to a toxic exposure or a result of inference with organ growth of critical stages," the team suggests. Their finding that women exposed in utero but who did not smoke as adults still experienced impaired fertility supports this idea. The study, published in the American Journal of Epidemiology, included 430 Danish couples who lived together and had no children. Couples were followed for six menstrual cycles or until a pregnancy, after discontinuing birth control. Smoking, alcohol consumption and caffeine intake was evaluated with a questionnaire that couples completed once a month. A statistical model was used to assess the effect of current smoking and exposure to smoke in utero. The researchers recommend that women stop smoking when they are trying to conceive as well as during pregnancy. However, they add that their results in regard to the effects of prenatal exposure to tobacco smoke on fertility need further study. ----------------------------------------------------------------- NPG Population-News Listserve http://www.npg.org To unsubscribe: send e-mail to [EMAIL PROTECTED] with the message text: unsubscribe population-news ----------------------------------------------------------------- --------------------------------------------------------------------- "Milis Bagi Orangtua Yang Menyayangi Balitanya" To subscribe, e-mail: [EMAIL PROTECTED] To unsubscribe, e-mail: [EMAIL PROTECTED] HI-Reliability low cost web hosting service - http://www.IndoGlobal.com
