Maternal depression may alter stress and immune markers in children

New research suggests that depression in women may affect their children’s stress and physical well-being throughout life.

For the Depression & Anxiety study, researchers followed 125 children from birth to 10 years. At 10 years, mothers’ and children’s cortisol (CT) and secretory immunoglobulin (s-IgA)—markers of stress and the immune system—were measured, mother-child interaction were observed, mothers and children underwent psychiatric diagnoses, and children’s externalizing and internalizing symptoms were reported.

Depressed mothers had higher CT and s-IgA levels and displayed more negative parenting, characterized by negative affect, intrusion, and criticism. Children of depressed mothers tended to exhibit certain psychiatric disorders, have higher s-IgA levels, and display greater social withdrawal.

“Following mothers and children across the first decade of life, we found that exposure to maternal depression impairs functioning of the child’s immune system and stress response. Such disruptions to the child’s stress and immune system, in turn, led to greater child psychopathology,” said senior author Dr. Ruth Feldman, of the Interdisciplinary Center Herzliya, in Israel.

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