First trimester smoking linked to oral clefts

Smoking during the first trimester of pregnancy is clearly linked with an increased risk of cleft lip in newborns. Genes that play a role in detoxification of cigarette smoke do not appear to be involved. This is shown in a new study published in the journal Epidemiology.

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<p><a href="http://www.physorg.com/news148816410.html">First trimester smoking linked to oral clefts</a></p> <p>Smoking during the first trimester of pregnancy is clearly linked with an increased risk of cleft lip in newborns. Genes that play a role in detoxification of cigarette smoke do not appear to be involved. This is shown in a new study published in the journal <I>Epidemiology</I>.</p>