Prediabetes is associated with structural brain abnormalities: the Maastricht study

Marnix J.M. van Agtmaal (Corresponding author), Alfons J.H.M. Houben, Vera de Wit, Ronald M.A. Henry, Nicolaas C. Schaper, Pieter C. Dagnelie, Carla J. van der Kallen, Annemarie Koster, Simone J. Sep, Abraham A. Kroon, Jacobus F.A. Jansen, Paul A. Hofman, Walter H. Backes, Miranda T. Schram, Coen D.A. Stehouwer

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Abstract

OBJECTIVE Structural brain abnormalities are key risk factors for brain diseases, such as dementia, stroke, and depression, in type 2 diabetes. It is unknown whether structural brain abnormalities already occur in prediabetes. Therefore, we investigated whether both prediabetes and type 2 diabetes are associated with lacunar infarcts (LIs), white matter hyperintensities (WMHs), cerebral microbleeds (CMBs), and brain atrophy. RESEARCH DESIGN and METHODS We used data from 2,228 participants (1,373 with normal glucose metabolism [NGM], 347 with prediabetes, and 508 with type 2 diabetes (oversampled); mean age 59.2 6 8.2 years; 48.3% women) of the Maastricht Study, a population-based cohort study. Diabetes status was determined with an oral glucose tolerance test. Brain imaging was performed with 3 Tesla MRI. Results were analyzed with multivariable logistic and linear regression analyses. RESULTS Prediabetes and type 2 diabetes were associated with the presence of LIs (odds ratio 1.61 [95% CI 0.98-2.63] and 1.67 [1.04-2.68], respectively; P trend = 0.027), larger WMH (b 0.07 log10-transformed mL [log-mL] [95% CI 0.00-0.15] and 0.21 log-mL [0.14-0.28], respectively; P trend <0.001), and smaller white matter volumes (b 24.0 mL [27.3 to 20.6] and 27.2 mL [210.4 to 24.0], respectively; P trend <0.001) compared with NGM. Prediabetes was not associated with gray matter volumes or the presence of CMBs. CONCLUSIONS Prediabetes is associated with structural brain abnormalities, with further deterioration in type 2 diabetes. These results indicate that, in middle-aged populations, structural brain abnormalities already occur in prediabetes, which may suggest that the treatment of early dysglycemia may contribute to the prevention of brain diseases.

Original languageEnglish
Pages (from-to)2535-2543
Number of pages9
JournalDiabetes Care
Volume41
Issue number12
DOIs
Publication statusPublished - 1 Dec 2018

Funding

Acknowledgments. The researchers are in debted to the participants for their willingness to participate in the study. Funding. This study was supported in part by the European Regional Development Fund via OP-Zuid, the Province of Limburg, the Dutch Ministry of Economic Affairs and Climate Policy (grant 31O.041), Stichting De Weijerhorst (Maas-tricht, the Netherlands), the Pearl String Initiative Diabetes (Amsterdam, the Netherlands), the Cardiovascular Center (Maastricht, the Netherlands), the School for Cardiovascular Diseases (CARIM), the Care and Public Health Research Institute, the School for Nutrition and Translational Research in Metabolism (Maastricht, the Netherlands), Stichting Annadal (Maastricht, the Netherlands), and Health Foundation Lim-burg (Maastricht, the Netherlands). Duality of Interest. This study was also supported by unrestricted grants from Janssen-Cilag B.V. (Tilburg, the Netherlands), Novo Nordisk Farma B.V. (Alphen aan den Rijn, the Netherlands), and Sanofi Netherlands B.V. (Gouda, the Netherlands). No other potential conflicts of interest relevant to this article were reported. Author Contributions. M.J.M.v.A., A.J.H.M.H., V.d.W., R.M.A.H., N.C.S., P.C.D., C.J.v.d.K., A.K., S.J.S., A.A.K., J.F.A.J., P.A.H., W.H.B., M.T.S., and C.D.A.S. were involved in the design or conduct of the study, the preparation of the manuscript, and the decision to submit it for publication and all verify the accuracy and completeness of the data and analyses. M.J.M.v.A., A.J.H.M.H., M.T.S., and C.D.A.S. analyzed data and drafted the manuscript. A.J.H.M.H., R.M.A.H., N.C.S., P.C.D., C.J.v.d.K., A.K., S.J.S., A.A.K., J.F.A.J., P.A.H., W.H.B., M.T.S., and C.D.A.S. commented on the drafts and contributed to writing. V.d.W. analyzed data. M.J.M.v.A., A.J.H.M.H., V.d.W., R.M.A.H., N.C.S., P.C.D., C.J.v.d.K., A.K., S.J.S., A.A.K., J.F.A.J., P.A.H., W.H.B., M.T.S., and C.D.A.S. approved the final version. M.J.M.v.A. is the guarantor of this work and, as such, had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.

Keywords

  • Adult
  • Aged
  • Atrophy/diagnosis
  • Brain/diagnostic imaging
  • Brain Diseases/diagnosis
  • Cohort Studies
  • Diabetes Mellitus, Type 2/complications
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Netherlands/epidemiology
  • Prediabetic State/complications
  • Risk Factors
  • Stroke/diagnosis

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