Gender Differences in Diabetes’ Impact on the Brain and Cognition

Published on June 28, 2022

Just like how a recipe might affect different ingredients in different ways, diabetes appears to have sex-specific effects on the brain. Recent research explored how diabetes influences brain structure and cognitive function in a group of elderly patients. The findings revealed that women with diabetes were at a higher risk for brain-related abnormalities, such as cerebral lacunes and brain atrophy, compared to men with diabetes. Additionally, women with diabetes experienced impairments in executive function, processing speed, and language skills, whereas men did not show these associations. This suggests that diabetes may have unique effects on the brain and cognition depending on gender. While this study sheds light on the topic, further investigation is needed to fully understand the underlying mechanisms and develop targeted preventive measures for both men and women. If you’re curious to learn more about this fascinating research, dive into the full article!

IntroductionGlobally, women with dementia have a higher disease burden than men with dementia. In addition, women with diabetes especially are at higher risk for cognitive impairment and dementia compared to men with diabetes. Differences in the influence of diabetes on the cerebral vasculature and brain structure may contribute to these sex-specific differences. We examined sex-specific patterns in the relationship between diabetes and brain structure, as well as diabetes and cognitive function.MethodsIn total, 893 patients [age 79 ± 6.6 years, 446 (50%) women] from the Amsterdam Ageing Cohort with available data on brain structures (assessed by an MRI or CT scan) and cognitive function were included. All patients underwent a thorough standardized clinical and neuropsychological assessment (including tests on memory, executive functioning, processing speed, language). Brain structure abnormalities were quantified using visual scales.ResultsCross-sectional multivariable regression analyses showed that diabetes was associated with increased incidence of cerebral lacunes and brain atrophy in women (OR 2.18 (1.00–4.72) but not in men. Furthermore, diabetes was associated with decreased executive function, processing speed and language in women [B −0.07 (0.00–0.13), −0.06 (0.02–0.10) and −0.07 (0.01–0.12) resp.] but not in men.ConclusionsDiabetes is related to increased risk of having lacunes, brain atrophy and impaired cognitive function in women but not in men. Further research is required to understand the time trajectory leading up to these changes and to understand the mechanisms behind them in order to improve preventive health care for both sexes.

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