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Neurocognitive impairment in type 2 diabetes mellitus

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Abstract

There is emerging evidence that cognitive impairment could be a diabetes mellitus-related complication. It has been suggested that diabetic people are at increased risk of cognitive decline, since the metabolic and vascular disturbances of the disease affect brain function. Additionally, prolonged exposure to olther potential detrimental factors leads to irreversible cognitive decrements over time due to the aging process. Neurocognitive impairment signifies decreased performance in cognitive domains such as verbal and nonverbal memory, both immediate and delayed memory, executive function, attention, visuospatial and psychomotor performance, information processing speed, semantic knowledge, and language abilities. The aim of the present article is to review the existing literature on the issue of the neurocognitive decline in type 2 diabetes. A literature search of databases was performed, using as keywords “diabetes” and “cognitive impairment,” and the reference list of papers so identified were examined, with only English language papers being used. Understanding and preventing diabetes-associated cognitive deficits remains a key priority for future research. It is important to ascertain whether interventions to delay diabetes onset or better control of established disease could prevent some of its adverse effects on cognitive skills.

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Authors and Affiliations

  1. Department of Physiology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece

    Marianna Karvani

  2. Department of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Herakleion, Crete, Greece

    P. Simos

  3. Department of Italian Language and Literature, School of Philosophy, Aristotle University of Thessaloniki, Thessaloniki, Greece

    S. Stavrakaki

  4. Department of Physiology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece

    D. Kapoukranidou

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  1. Marianna Karvani
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Karvani, M., Simos, P., Stavrakaki, S. et al. Neurocognitive impairment in type 2 diabetes mellitus. Hormones 18, 523–534 (2019). https://doi.org/10.1007/s42000-019-00128-2

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