Menopausal hormone therapy (MHT) is often prescribed to alleviate menopausal symptoms, but its impact on brain health remains a topic of debate. A recent study published in eLife sheds light on this complex issue, suggesting that MHT’s effects on the brain are nuanced and depend on various factors.
MHT and Brain Health: A Complex Relationship
The study, conducted by researchers at the UK Biobank, analyzed data from nearly 20,000 women who underwent brain MRI scans. They examined the relationship between MHT use, brain age (the difference between chronological age and brain age), hippocampal volume (a brain region crucial for memory), and other brain health indicators.
The results were intriguing. Women who were current MHT users had a higher brain age gap and smaller hippocampal volumes compared to women who had never used MHT. This suggests that current MHT use might be associated with subtle but measurable changes in brain structure and age.
However, past MHT users did not show significant differences in brain age or hippocampal volume compared to those who had never used MHT. This indicates that the effects of MHT on the brain might be influenced by the duration and timing of use.
Further analysis revealed that women who stopped MHT later in life or used it for a longer duration had larger brain age gaps and smaller hippocampal volumes. This suggests that the age at last use and duration of MHT might play a significant role in its impact on brain health.
Personalized MHT Approaches are Key
The study’s findings highlight the importance of personalized approaches to MHT. Factors like age at initiation, duration of use, surgical history, and individual genetic predispositions influence how MHT might affect brain health. More research is needed to fully understand these complex interactions and to provide women with the most informed guidance regarding MHT use.
Want to learn more about the latest research on MHT and brain health? Visit the original research paper published in eLife.