Specialized imaging reveals hormone-driven brain changes
A new study from the University of Delaware shows that fluctuations in estrogen influence the brain, helping reshape connections between neurons. Researchers showed that a specialized imaging technique called magnetic resonance elastography (MRE) can detect estrogen-dependent mechanical changes in the hippocampus, a brain region involved in memory and learning, across the reproductive cycle.
A University of Delaware study has discovered that estrogen fluctuations impact brain mechanics, specifically within the hippocampus region linked to memory and learning. By utilizing magnetic resonance elastography (MRE), researchers observed estrogen-related mechanical changes in the hippocampus throughout the reproductive cycle of rats.
The findings, published in Brain Communications, suggest that this method could potentially be employed to track these hormonal-induced changes in both rats and humans, according to first author Katrina Milbocker, a postdoctoral researcher. While the study establishes a link between hormone fluctuations and hippocampal mechanics, the connection between these changes and brain function remains unclear.
Future research will explore whether these mechanical alterations influence cognitive processes such as memory and learning. Additionally, the team aims to extend the study to menopause models in rats, examining potential mechanical "stuck states" that could contribute to cognitive disruptions like brain fog. The collaborative efforts between UD's human and animal imaging facilities will facilitate this transition.
Ultimately, the researchers hope to integrate MRE technology into routine MRI exams, potentially adding only a minute to a standard scan, to better understand and support brain health during various life stages.
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