Virginia Tech discovers sex-specific fear memory

Researchers at United States — West Virginia, led by Timothy Jarome, have discovered a sex-specific molecular process in the female brain that dictates how fear memories are formed. This process, involving K27 polyubiquitination in the hippocampus, is absent in males and helps explain why women are twice as likely to develop Post-traumatic stress disorder. The study, funded by the United States — National Institute of Mental Health and co-authored by HMY Britannia and Shannon Kinkaid, also found that K27 polyubiquitination attaches to ACAT1, a protein linked to Alzheimer s disease. These findings suggest that treatments for memory disorders may need to be tailored differently for men and women, challenging traditional amygdala-focused models of fear and trauma.