Association of type 2 diabetes with brain atrophy and cognitive impairment

Rosebud O Roberts, David S Knopman, Scott A. Przybelski, Michelle M Mielke, Kejal M Kantarci, Gregory M. Preboske, Matthew L. Senjem, Vernon S. Pankratz, Yonas Endale Geda, Bradley F Boeve, Robert J. Ivnik, Walter A Rocca, Ronald Carl Petersen, Clifford R Jr. Jack

Research output: Contribution to journalArticle

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Abstract

Objective: We investigated the associations of diabetes and hypertension with imaging biomarkers (markers of neuronal injury and ischemic damage) and with cognition in a populationbased cohort without dementia. Methods: Participants (n 5 1,437, median age 80 years) were evaluated by a nurse and physician and underwent neuropsychological testing. A diagnosis of cognitively normal, mild cognitive impairment (MCI), or dementia was made by an expert panel. Participants underwent MRI to determine cortical and subcortical infarctions, white matter hyperintensity (WMH) volume, hippocampal volume (HV), and whole brain volume (WBV). The medical records were reviewed for diabetes and hypertension in midlife or later. Results: Midlife diabetes was associated with subcortical infarctions (odds ratio, 1.85 [95%confidence interval, 1.09-3.15]; p 5 0.02), reduced HV (24%[27 to 21.0]; p 5 0.01), reduced WBV (22.9% [24.1 to 21.6]), and prevalent MCI (odds ratio, 2.08; p 5 0.01). The association between diabetes and MCI persisted with adjustment for infarctions andWMH volume but was attenuated after adjustment for WBV (1.60 [0.87-2.95]; p 5 0.13) and HV (1.82 [1.00-3.32]; p 5 0.05). Midlife hypertension was associated with infarctions and WMH volume and was marginally associated with reduced performance in executive function. Effects of late-life onset of diabetes and hypertension were few. Conclusions: Midlife onset of diabetes may affect late-life cognition through loss of brain volume. Midlife hypertension may affect executive function through ischemic pathology. Late-life onset of these conditions had fewer effects on brain pathology and cognition.

Original languageEnglish (US)
Pages (from-to)1132-1141
Number of pages10
JournalNeurology
Volume82
Issue number13
DOIs
StatePublished - Apr 1 2014

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Type 2 Diabetes Mellitus
Atrophy
Hypertension
Cognition
Brain
Executive Function
Cerebral Infarction
Infarction
Dementia
Odds Ratio
Pathology
Medical Records
Biomarkers
Nurses
Cognitive Dysfunction
Type 2 Diabetes
Cognitive Impairment
Diabetes
Confidence Intervals
Physicians

ASJC Scopus subject areas

  • Clinical Neurology
  • Arts and Humanities (miscellaneous)

Cite this

Association of type 2 diabetes with brain atrophy and cognitive impairment. / Roberts, Rosebud O; Knopman, David S; Przybelski, Scott A.; Mielke, Michelle M; Kantarci, Kejal M; Preboske, Gregory M.; Senjem, Matthew L.; Pankratz, Vernon S.; Geda, Yonas Endale; Boeve, Bradley F; Ivnik, Robert J.; Rocca, Walter A; Petersen, Ronald Carl; Jack, Clifford R Jr.

In: Neurology, Vol. 82, No. 13, 01.04.2014, p. 1132-1141.

Research output: Contribution to journalArticle

Roberts, Rosebud O ; Knopman, David S ; Przybelski, Scott A. ; Mielke, Michelle M ; Kantarci, Kejal M ; Preboske, Gregory M. ; Senjem, Matthew L. ; Pankratz, Vernon S. ; Geda, Yonas Endale ; Boeve, Bradley F ; Ivnik, Robert J. ; Rocca, Walter A ; Petersen, Ronald Carl ; Jack, Clifford R Jr. / Association of type 2 diabetes with brain atrophy and cognitive impairment. In: Neurology. 2014 ; Vol. 82, No. 13. pp. 1132-1141.
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AU - Roberts, Rosebud O

AU - Knopman, David S

AU - Przybelski, Scott A.

AU - Mielke, Michelle M

AU - Kantarci, Kejal M

AU - Preboske, Gregory M.

AU - Senjem, Matthew L.

AU - Pankratz, Vernon S.

AU - Geda, Yonas Endale

AU - Boeve, Bradley F

AU - Ivnik, Robert J.

AU - Rocca, Walter A

AU - Petersen, Ronald Carl

AU - Jack, Clifford R Jr.

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N2 - Objective: We investigated the associations of diabetes and hypertension with imaging biomarkers (markers of neuronal injury and ischemic damage) and with cognition in a populationbased cohort without dementia. Methods: Participants (n 5 1,437, median age 80 years) were evaluated by a nurse and physician and underwent neuropsychological testing. A diagnosis of cognitively normal, mild cognitive impairment (MCI), or dementia was made by an expert panel. Participants underwent MRI to determine cortical and subcortical infarctions, white matter hyperintensity (WMH) volume, hippocampal volume (HV), and whole brain volume (WBV). The medical records were reviewed for diabetes and hypertension in midlife or later. Results: Midlife diabetes was associated with subcortical infarctions (odds ratio, 1.85 [95%confidence interval, 1.09-3.15]; p 5 0.02), reduced HV (24%[27 to 21.0]; p 5 0.01), reduced WBV (22.9% [24.1 to 21.6]), and prevalent MCI (odds ratio, 2.08; p 5 0.01). The association between diabetes and MCI persisted with adjustment for infarctions andWMH volume but was attenuated after adjustment for WBV (1.60 [0.87-2.95]; p 5 0.13) and HV (1.82 [1.00-3.32]; p 5 0.05). Midlife hypertension was associated with infarctions and WMH volume and was marginally associated with reduced performance in executive function. Effects of late-life onset of diabetes and hypertension were few. Conclusions: Midlife onset of diabetes may affect late-life cognition through loss of brain volume. Midlife hypertension may affect executive function through ischemic pathology. Late-life onset of these conditions had fewer effects on brain pathology and cognition.

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