Maternal depression and inflammation during pregnancy.

Area of Science:

• Reproductive Health
• Perinatal Psychiatry
• Immunology

Background:

• Maternal depression during pregnancy poses risks for adverse child developmental outcomes.
• The biological mechanisms linking maternal depression to these risks are not fully understood.
• Inflammation is a potential biological pathway requiring investigation.

Purpose of the Study:

• To investigate the association between maternal depression and inflammatory markers during pregnancy.
• To determine if early pregnancy overweight/obesity or pregnancy disorders mediate these associations.
• To examine if depression exacerbates inflammation in women with these conditions.

Main Methods:

• Analysis of plasma high-sensitivity C-reactive protein (hsCRP) and glycoprotein acetyls at three pregnancy stages.
• Assessment of depression history via healthcare records and self-reports.
• Measurement of depressive symptoms using the Center for Epidemiological Studies Depression Scale.
• Inclusion of data on early pregnancy body mass index (BMI) and pregnancy disorders from medical records.

Main Results:

• History of depression and higher depressive symptoms predicted elevated hsCRP levels.
• History of depression also predicted higher glycoprotein acetyls.
• These associations were mediated by early pregnancy BMI, not explained by diabetes/hypertensive disorders.
• In obese women, depressive symptoms during pregnancy intensified hsCRP levels.

Conclusions:

• Maternal depression is associated with a proinflammatory state during pregnancy.
• Early pregnancy BMI mediates the link between depression and inflammation.
• Depressive symptoms during pregnancy exacerbate obesity-related inflammation.