Researchers at McGill University and the Douglas Institute have identified two specific types of brain cells—excitatory neurons involved in mood and stress regulation, and microglia cells that manage inflammation—that show altered gene activity in people with depression. The findings provide concrete evidence that depression involves measurable biological changes in the brain, challenging misconceptions that it is purely emotional. Using single-cell genomic techniques on post-mortem brain tissue from 59 people with depression and 41 without, the team analyzed RNA and DNA from thousands of brain cells to pinpoint which cells functioned differently and identify the DNA sequences responsible for these differences. This study, published in Nature Genetics, represents the first time scientists have mapped gene activity together with DNA regulatory mechanisms to identify specific brain cell types affected by depression. All in all, this research opens pathways for developing new treatments that target these specific cell types and may lead to better therapies for a disorder affecting over 264 million people worldwide.
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Depression Linked to Two Specific Brain Cells
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The ideas expressed here are solely the opinions of the author and are not researched or verified by AGEIST LLC, or anyone associated with AGEIST LLC. This material should not be construed as medical advice or recommendation, it is for informational use only. We encourage all readers to discuss with your qualified practitioners the relevance of the application of any of these ideas to your life. The recommendations contained herein are not intended to diagnose, treat, cure or prevent any disease. You should always consult your physician or other qualified health provider before starting any new treatment or stopping any treatment that has been prescribed for you by your physician or other qualified health provider. Please call your doctor or 911 immediately if you think you may have a medical or psychiatric emergency.