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Researchers identify brain pathway impairing postpartum social behavior following adolescent stress - Video

Published On 2023-06-26T09:30:55+05:30  |  Updated On 26 Jun 2023 9:30 AM IST
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Overview

In a Nature Communications study, the University of Alabama at Birmingham researchers used a mouse model and cutting-edge neurobiological techniques to show how psychological stress during adolescence alters neuronal functions in the brain, resulting in altered postpartum social behavior.

This research builds on their recent finding that mice exposed to social isolation in late adolescence, which alone causes no endocrine or behavioral changes, show long-lasting behavioral changes only when accompanied by pregnancy and delivery. They were able to use this behavioral model to probe for postpartum neural circuit differences between mouse dams that were stressed in late adolescence and a control group of mouse dams that remained unstressed in adolescence, due to normal social interactions with other mice.

The UAB researchers used optogenetics — where light signals can selectively activate or inhibit brain circuits — and in vivo calcium imaging, which allows researchers to examine the neuronal activity of specific neurons in a brain region. These approaches allow investigators to understand how nerve cells communicate in freely-behaving animals.

The UAB Department of Psychiatry and Behavioral Neurobiology researchers found that adolescent psychosocial stress, combined with pregnancy and delivery, caused hypofunction of the glutamatergic pathway that they mapped from the anterior insula region of the brain cortex to the prelimbic cortex. Glutamate is the main excitatory neurotransmitter in the central nervous systems of mammals.

Reference: Adolescent stress impairs postpartum social behavior via an anterior insula-prelimbic pathway in mice, Nature Communications, DOI 10.1038/s41467-023-38799-6

Speakers

Isra Zaman

B.Sc Life Sciences, M.Sc Biotechnology, B.Ed

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.

Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751
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