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Study suggests pain signals are processed differently in men and women

ANI | Updated: Mar 23, 2022 22:10 IST


Washington [US], March 23 (ANI): A new study shows for the first time that neurons in the spinal cord process pain signals differently in women compared to men.
The finding, published in the journal BRAIN, could lead to better and more personalized treatments for chronic pain, which are desperately needed, especially in light of the opioid epidemic.

Although it has long been known that women and men experience pain differently, most pain research uses male rodents. The new study is unique because it used female and male spinal cord tissue from both rats and humans (generously donated by deceased individuals and their families).
By examining the spinal cord tissue in the laboratory, the researchers were able to show that a neuronal growth factor called BDNF plays a major role in amplifying spinal cord pain signalling in male humans and male rats, but not in female humans or female rats. When female rats had their ovaries removed, the difference disappeared, pointing to a hormonal connection.
"Developing new pain drugs requires a detailed understanding of how pain is processed at the biological level. This new discovery lays the foundation for the development of new treatments to help those suffering from chronic pain," said Dr Annemarie Dedek, lead author of the study and now a MITACS- and Eli Lilly-funded industrial research fellow at Carleton University and The Ottawa Hospital. (ANI)

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