July 30, 2008
New Study Links Diabetes to Birth Defects
By THE ASSOCIATED PRESS
ATLANTA - Diabetic women who get pregnant are three to four times more likely to have a child with birth defects than other women, according to new government research.
The study lists nearly 40 types of birth defects found to be significantly more common in the infants of diabetic mothers than in those who weren't diabetic or who were diagnosed with diabetes after they became pregnant.
The study's list of diabetes-associated birth defects is surprising - it's much longer than was previously understood, said Janis Biermann, senior vice president for education and health promotion at the March of Dimes.
"It adds more information about the specific types of birth defects associated with pregestational diabetes and gestational diabetes," said Biermann, who was not involved in the research.
Researchers from the Centers for Disease Control and Prevention led the study, which is being published in the American Journal of Obstetrics and Gynecology. CDC officials released the study Wednesday.
Birth defects affect one in 33 babies born in the United States, and cause about one in five infant deaths.
The cause of most birth defects isn't known but some risk factors include obesity, alcohol, smoking and infections.
Doctors have known for decades about the threat diabetes poses to pregnancies. Past research has focused on dangers to the infant by the extra amounts of glucose - sugar - circulating in the womb of a diabetic mother.
Studies with rats and mice clearly show excess sugar harms fetal tissue development, said Dr. E. Albert Reece, a study co-author, who directs birth defects research at the University of Maryland School of Medicine.
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