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Blood glucose, diet-based glycemic load and cognitive aging among dementia-free older adults
Department of Psychology. St. Petersburg College. St. Petersburg, Florida.
School of Aging Studies. University of South Florida. Tampa ; International Clinical Research Center, Brno, Czech Republic.
School of Aging Studies. University of South Florida. Tampa.
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden ; School of Health Sciences. Jönköping University, Sweden.ORCID iD: 0000-0002-6305-8993
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2015 (English)In: The journals of gerontology. Series A, Biological sciences and medical sciences, ISSN 1079-5006, E-ISSN 1758-535X, Vol. 70, no 4, p. 471-479Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Although evidence indicates that Type II Diabetes is related to abnormal brain aging, the influence of elevated blood glucose on long-term cognitive change is unclear. In addition, the relationship between diet-based glycemic load and cognitive aging has not been extensively studied. The focus of this study was to investigate the influence of diet-based glycemic load and blood glucose on cognitive aging in older adults followed for up to 16 years.

METHODS: Eight-hundred and thirty-eight cognitively healthy adults aged ≥50 years (M = 63.1, SD = 8.3) from the Swedish Adoption/Twin Study of Aging were studied. Mixed effects growth models were utilized to assess overall performance and change in general cognitive functioning, perceptual speed, memory, verbal ability, and spatial ability as a function of baseline blood glucose and diet-based glycemic load.

RESULTS: High blood glucose was related to poorer overall performance on perceptual speed as well as greater rates of decline in general cognitive ability, perceptual speed, verbal ability, and spatial ability. Diet-based glycemic load was related to poorer overall performance in perceptual speed and spatial ability.

CONCLUSION: Diet-based glycemic load and, in particular, elevated blood glucose appear important for cognitive performance/cognitive aging. Blood glucose control (perhaps through low glycemic load diets) may be an important target in the detection and prevention of age-related cognitive decline.

Place, publisher, year, edition, pages
Oxford University Press, 2015. Vol. 70, no 4, p. 471-479
Keywords [en]
cognition, diabetes, blood glucose
National Category
Public Health, Global Health, Social Medicine and Epidemiology Nutrition and Dietetics Endocrinology and Diabetes Psychology (excluding Applied Psychology) Applied Psychology
Identifiers
URN: urn:nbn:se:his:diva-21882DOI: 10.1093/gerona/glu135ISI: 000353896100009PubMedID: 25149688Scopus ID: 2-s2.0-84926645157OAI: oai:DiVA.org:his-21882DiVA, id: diva2:1700025
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 97:0147:1BSwedish Research Council, 825-2007-7460Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-0795Swedish Research Council, 825-2009-6141
Note

This study is supported by the National Institute of Aging (AG04563, AG10175), the MacArthur Foundation Research Network on Successful Aging, the Swedish Research Council for Health, Working Life and Welfare (FORTE) (97:0147:1B, 2009-0795), and the Swedish Research Council (825-2007-7460, 825-2009-6141) and by a Future Leaders of Aging Research in Europe (FLARE) postdoctoral grant (FORTE 2010-1852) to A.K.D.A.

Available from: 2015-10-27 Created: 2022-09-29 Last updated: 2022-10-04Bibliographically approved

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Dahl Aslan, Anna K.

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The journals of gerontology. Series A, Biological sciences and medical sciences
Public Health, Global Health, Social Medicine and EpidemiologyNutrition and DieteticsEndocrinology and DiabetesPsychology (excluding Applied Psychology)Applied Psychology

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