Biomarker in pregnant women linked to depression, low fetal birth weight
Lower blood levels of a biomarker called brain-derived neurotrophic factor (BDNF) have been associated with depression in multiple studies, mainly in non-pregnant adults. Now, in a study published in the journal Psychoneuroendocrinology , research from The Ohio State University Wexner Medical Center found that BDNF levels change during pregnancy, and can cause depression in the mother and low birth weight in the baby. "Our research shows BDNF levels change considerably across pregnancy and provide predictive value for depressive symptoms in women, as well as poor fetal growth. It's notable that we observed a significant difference in BDNF in women of different races," said Lisa M. Christian, an associate professor of psychiatry in the Institute for Behavioral Medicine Research at Ohio State's Wexner Medical Center and principal investigator of the study. Researchers took blood serum samples during and after pregnancy from 139 women and observed that BDNF leve...