Cited by 538Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMemory and Neural Mechanisms

Memory improvement following induced hyperinsulinemia in Alzheimer’s disease

Craft, Suzanne, Newcomer, John, Kanne, Stephen, Dagogo-Jack, Samuel, Cryer, Philip, Sheline, Yvette, Luby, Joan, Dagogo-Jack, Agbani +1 more·1996·Neurobiology of Aging

Abstract

Dementia of the Alzheimer type (DAT) is accompanied by disruption in glucose regulation and utilization that may contribute to its characteristic memory impairment. Increasing glucose availability by raising plasma glucose improves memory in patients with DAT. Such memory improvement is associated with a secondary elevation in plasma insulin levels, raising the question of whether improvement is due to changes in insulin levels, independent of hyperglycemia. Distributions of insulin receptors in the hippocampus and insulin-mediated increases in glucose utilization in entorhinal cortex provide potential mechanisms for such improvement. We show that raising plasma insulin through intravenous infusion while keeping plasma glucose at a fasting baseline level produces striking memory enhancement for patients with DAT. Previous findings of hyperglycemic memory enhancement were also replicated. Patients with DAT also showed abnormal plasma levels of glucoregulatory hormones and metabolites at baseline and during metabolic manipulations. Our findings suggest that neuroendocrine factors play an important role in the pathophysiology of DAT.

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Crossref · 10.1016/0197-4580(95)02002-0

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42 of 42 references verified0 citation errors · 0 not checkable

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  • Neuronal insulin receptors are involved in diverse brain functions including synapse plasticity, learning and memory.

    “Neuronal IRs are involved in diverse brain functions including synapse plasticity, learning and memory (Chiu et al., 2008; Craft et al., 1996; Kern et al., 2001; Lee et al., 2005; Park et al., 2000).”

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Authors
Craft, S., Newcomer, J., Kanne, S., Dagogo-Jack, S., Cryer, P., Sheline, Y., Luby, J., Dagogo-Jack, A., & Alderson, A.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Craft, Suzanne
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
1996-01
Volume
17
Issue
1
Pages
123-130
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2101048381
Cited by
538
References
41
Citations by year
2026: 9 · 2025: 32 · 2024: 45 · 2023: 28 · 2022: 21 · 2021: 29 · 2020: 42 · 2019: 25 · 2018: 17 · 2017: 8 · 2016: 8 · 2015: 10 · 2014: 6 · 2013: 17 · 2012: 17
FWCI
12.30
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1k20mh001045-01)
  • National Institute on Aging (R01-AG-10880, R01AG010880)
  • National Institute of Mental Health (MH-01045)
  • National Center for Research Resources (MO1RR00036, M01RR000036)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
Alzheimer's disease, hyperinsulinemia, memory impairment, insulin, glucose regulation, hyperglycemia, hippocampus, insulin receptor, entorhinal cortex, glucoregulatory hormones, neuroendocrine factors
MeSH terms
Aged, Alzheimer Disease, Fatty Acids, Glucagon, Humans, Hyperglycemia, Hyperinsulinism, Lactates, Memory, Norepinephrine, Psychiatric Status Rating Scales

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