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Association between Type 2 Diabetes Mellitus and Brain Atrophy: A Meta-Analysis (Diabetes Metab J 2022;46:781-802)
Tianqi Zhang, Marnie Shaw, Nicolas Cherbuin
Diabetes Metab J. 2022;46(5):815-816.   Published online September 19, 2022
  • 2,823 View
  • 120 Download
  • 10 Web of Science
  • 2 Crossref
PDFPubReader   ePub   


Citations to this article as recorded by  
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Original Article
Association between Type 2 Diabetes Mellitus and Brain Atrophy: A Meta-Analysis
Tianqi Zhang, Marnie Shaw, Nicolas Cherbuin
Diabetes Metab J. 2022;46(5):781-802.   Published online March 8, 2022
  • 7,175 View
  • 305 Download
  • 15 Web of Science
  • 22 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Type 2 diabetes mellitus (T2DM) is known to be associated with cognitive decline and brain structural changes. This study systematically reviews and estimates human brain volumetric differences and atrophy associated with T2DM.
PubMed, PsycInfo and Cochrane Library were searched for brain imaging studies reporting on brain volume differences between individuals with T2DM and healthy controls. Data were examined using meta-analysis, and association between age, sex, diabetes characteristics and brain volumes were tested using meta-regression.
A total of 14,605 entries were identified; after title, abstract and full-text screening applying inclusion and exclusion criteria, 64 studies were included and 42 studies with compatible data contributed to the meta-analysis (n=31,630; mean age 71.0 years; 44.4% male; 26,942 control; 4,688 diabetes). Individuals with T2DM had significantly smaller total brain volume, total grey matter volume, total white matter volume and hippocampal volume (approximately 1% to 4%); meta-analyses of smaller samples focusing on other brain regions and brain atrophy rate in longitudinal investigations also indicated smaller brain volumes and greater brain atrophy associated with T2DM. Meta-regression suggests that diabetes-related brain volume differences start occurring in early adulthood, decreases with age and increases with diabetes duration.
T2DM is associated with smaller total and regional brain volume and greater atrophy over time. These effects are substantial and highlight an urgent need to develop interventions to reduce the risk of T2DM for brain health.


Citations to this article as recorded by  
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  • Association between Type 2 Diabetes Mellitus and Brain Atrophy: A Meta-Analysis (Diabetes Metab J 2022;46:781-802)
    Tianqi Zhang, Marnie Shaw, Nicolas Cherbuin
    Diabetes & Metabolism Journal.2022; 46(5): 815.     CrossRef
  • Association between Type 2 Diabetes Mellitus and Brain Atrophy: A Meta-Analysis (Diabetes Metab J 2022;46:781-802)
    Se Hee Min
    Diabetes & Metabolism Journal.2022; 46(5): 813.     CrossRef
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