Infections during pregnancy linked to psychiatric disorders in baby - Hindustan Times
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Infections during pregnancy linked to psychiatric disorders in baby

Asian News International | ByAsian News International, Washington D.c.
Oct 31, 2019 03:29 PM IST

It has also been observed in both humans and animals that severe infections in the pregnant mother are a risk factor for developing psychiatric disorders such as schizophrenia and autism spectrum disorders later in the life of the offspring.

Mother’s good health is the key to the baby’s development. A recent study has found that infections in the mother can lead to psychiatric disorders in the baby.

Mother’s good health is the key to the baby’s development. A recent study has found that infections in the mother can lead to psychiatric disorders in the baby.(Shutterstock)
Mother’s good health is the key to the baby’s development. A recent study has found that infections in the mother can lead to psychiatric disorders in the baby.(Shutterstock)

It has also been observed in both humans and animals that severe infections in the pregnant mother are a risk factor for developing psychiatric disorders such as schizophrenia and autism spectrum disorders later in the life of the offspring.

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Researchers from Copenhagen have shown in mice how infections in the mother can cause the stem and precursor cells to neuronal cells in the brain to have their development impaired. The new study is published in the scientific journal - Molecular Psychiatry.

“The connection has been made in animal studies and clinical observation studies. However, this is the first time that we show how infections during pregnancy affect brain development and can lead to cognitive impairment.

“While many factors have been hypothesised or indicated, it is important that we show the steps of neuronal development that are actually affected,” said Konstantin Khodosevich, Associate Professor in the Biotech Research and Innovation Centre (BRIC).

The researchers studied the development of neurons in mice. The mother’s immune response to infection had an effect stretching from stem cells and precursor cells to neuronal cells leading to profound disruption in their development in the brain.

More specifically, the development of cortical GABAergic interneurons - the key neuronal class that provides inhibition in the brain - was impaired.

The effect was immediate and cascaded to dramatic long-lasting impairments, thus resulting in multiple “hits” during the process of neuronal development - from the time neurons are born to the time they mature.

Furthermore, the researchers also concluded that the newborn mice showed symptoms resembling those from human psychiatric disorders including decreased prepulse inhibition, altered social interactions and cognitive decline.

“There are big technological and ethical issues about studying this in humans because of the vulnerability of pregnant women. That is why we study how the mechanisms work in mice. Psychiatric disorders are really complex and for some of them, we are still only guessing how they arise,” said Konstantin Khodosevich.

“We really want to contribute to the scientific understanding of these diseases,” added Konstantin Khodosevich.

One of the major findings of the study was showing the effects of having infections at different times during pregnancy.

Depending on the time of infection, different precursor cells, and as a result different neurons, were affected.

This means that the timing of infection is very important and can lead to varying outcomes based on which stage of brain development is affected. This can potentially underlie the complexity of psychiatric disorders.

(This story has been published from a wire agency feed without modifications to the text.)

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