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Depression during pregnancy affects mental health of children
Saturday October 1, 2016 5:24 PM, IANS

London: Depression during pregnancy increases the risk of behavioural and emotional problems in children, suggests a new finding.

Depression is thought to affect at least one in five women globally in the later stages of pregnancy and shortly after birth, and is characterised by low mood and feelings of hopelessness, and is also brought on by a number of other factors that can include life events such as bereavement, and changes in brain chemistry.

Previous work from the researchers suggested that depression during pregnancy may affect the development of the baby while in the womb, as well as affecting bonding between mother and child after birth.

Now, the same team has shown that depression or anxiety can reduce the enzyme in the placenta that breaks down the "stress hormone" cortisol, possibly causing more foetal exposure to the hormone.

The foetus may also undergo epigenetic changes under stress, where underlying DNA stays the same but expression of that DNA is altered, perhaps affecting mental health during childhood.

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