Scientists find genetic mutation that causes cleft lip and p
The Centers for Disease Control and Prevention (CDC) report that approximately 2,650 babies are born with a cleft palate every year, and another 4,440 with a cleft lip.

Cleft lip and palate (CLP) occur when the tissue that forms the lip and the roof of the mouth does not join properly during pregnancy.

Many of the babies affected also have speech impediments and experience difficulties with feeding. Sometimes hearing and vision impairment, or even heart defects, can accompany CLP.

While these orofacial birth defects are common, their cause remains largely unknown. Genetic changes as a result of the mother's diet or medication are thought to play a role, but the exact genetic mechanism is not fully understood....

http://www.medicalnewstoday.com/articles/315211.php
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