Cited by 29Metabolism, Diabetes, and CancerDiabetes Treatment and ManagementDementia and Cognitive Impairment Research

Metformin: Repurposing Opportunities for Cognitive and Mood Dysfunction

Ying, Melissa, Maruschak, Nadia, Mansur, Rodrigo, Carvalho, Andre, Cha, Danielle, McIntyre, Roger·2015·CNS & Neurological Disorders - Drug Targets

Abstract

BACKGROUND: Cognitive deficits differentially affect individuals with type 2 diabetes mellitus (T2DM) and mood disorders. Accumulating evidence implicates disturbances in metabolism as salient to cognitive function. Thus, the mitigation of metabolic disturbances may preserve or ameliorate cognitive function. This review aims to evaluate available evidence investigating the effects of metformin on cognitive function as well as summarize putative mechanistic properties related to these clinical effects. METHODS: A PubMed search was conducted using the search words including, but not limited to: metformin, Major Depressive Disorder, type 2 diabetes mellitus, and cognitive dysfunction. All English language articles published from 1990 to July 2014 were reviewed. RESULTS: Extant preclinical and clinical data have been mixed, wherein both cognitive disruption and pro-cognitive effects have been reported with the administration of metformin. Sound mechanistic evidence supports metformin as a treatment; however, the heterogeneity of study designs has contributed to an inability to arrive at an unequivocal conclusion regarding metformin effects upon cognition. CONCLUSION: Available evidence does not provide a robust signal for improvement in cognition in either mood disorder or T2DM samples. Notwithstanding, it is premature to label metformin as a "no-go" agent for further testing and development for cognitive dysfunction. A well designed, proof-of-concept trial of metformin investigating its possible cognitive effects in mood disorders is therefore warranted.

Integrity signals

Registry

Crossref · 10.2174/1871527313666141130205514

Cites

86 of 86 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Metformin holds promise as an agent capable of attenuating and/or reverting neurotoxic effects mediated by inflammatory mechanisms, metabolic and mitochondrial dysfunction, as well as increased oxidative stress.

    “Finally, the anti-diabetic drug metformin holds promise as an agent capable of attenuating and/or reverting neurotoxic effects mediated by inflammatory mechanisms, metabolic and mitochondrial dysfunction, as well as increased oxidative stress [121].”

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ying, M., Maruschak, N., Mansur, R., Carvalho, A., Cha, D., & McIntyre, R.
Affiliations
University Health Network (CA)
Corresponding author
McIntyre, Roger
Venue
CNS & Neurological Disorders - Drug Targets
Published
2015-01-22
Volume
13
Issue
10
Pages
1836-1845
ISSN
  • 1568-007X (ISSN-L)
  • 1871-5273
OpenAlex
W2149587643
Cited by
29
References
86
Citations by year
2025: 2 · 2024: 1 · 2023: 5 · 2022: 6 · 2021: 3 · 2020: 4 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 3
FWCI
0.72
Type
journal article
Language
en
Open access
closed
Locations
  • CNS & Neurological Disorders - Drug Targets (publishedVersion)
  • PubMed (publishedVersion)
  • UNIFESP Institutional Repository (Universidade Federal de São Paulo) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
metformin, drug repurposing, cognitive impairment, mood disorders, major depressive disorder, type 2 diabetes, metabolic disorders, antidepressant effects
MeSH terms
Cognition Disorders, Humans, Metformin, Nootropic Agents, Mood Disorders

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review