Observational studyGeroScience2022
Diabetic patients treated with metformin during early stages of Alzheimer's disease show a better integral performance: data from ADNI study.
Observational study in GeroScience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.
- The Role of Antidiabetic Therapies in Mild Cognitive Impairment and Alzheimer's Disease: A Systematic Review of Metformin, Pioglitazone, and GLP-1 Receptor Agonists.International journal of molecular sciences · 2026Pooled it
- Effect of antidiabetic drugs in Alzheimer´s disease: a systematic review of preclinical and clinical studies.Molecular neurodegeneration · 2025Pooled it
- Brain-derived neurotrophic factor in diabetes: A promising target for cognitive restoration.iScience · 2026Review
- Article
- Association of type 2 diabetes treatment status with in vivo biomarkers of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Impact of metformin use on neurocognitive functions in older people: a systematic review and meta-analysis.Dementia & neuropsychologia · 2026Review
- Restoring amyloid-β42 and γ-secretase function in Alzheimer's disease.Brain : a journal of neurology · 2025Review
- From Diabetes to Degenerative Diseases: The Multifaceted Action of Metformin.International journal of molecular sciences · 2025Review
- Metformin Improves Spatial Memory and Reduces Seizure Severity in a Rat Model of Epilepsy and Alzheimer's Disease comorbidity via PI3K/Akt Signaling Pathway.Molecular neurobiology · 2025Article
- Overview of Metformin and Neurodegeneration: A Comprehensive Review.Pharmaceuticals (Basel, Switzerland) · 2025Review
- The Role of Inflammation, Oxidative Stress, Neuronal Damage, and Endothelial Dysfunction in the Neuropathology of Cognitive Complications in Diabetes: A Moderation and Mediation Analysis.Brain and behavior · 2025Article
- Mechanisms underlying cognitive impairment and management strategies in type 2 diabetes.Frontiers in endocrinology · 2025Review
- Should We Consider Neurodegeneration by Itself or in a Triangulation with Neuroinflammation and Demyelination? The Example of Multiple Sclerosis and Beyond.International journal of molecular sciences · 2024Review
- Treatment with Blackberry Extract and Metformin in Sporadic Alzheimer's Disease Model: Impact on Memory, Inflammation, Redox Status, Phosphorylated Tau Protein and Insulin Signaling.Molecular neurobiology · 2024Article
- Diabetes accelerates Alzheimer's disease progression in the first year post mild cognitive impairment diagnosis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Metabolic Disorder Therapeutics and their Effects on Memory.CNS & neurological disorders drug targets · 2024Review
- The Alzheimer's Disease Neuroimaging Initiative in the era of Alzheimer's disease treatment: A review of ADNI studies from 2021 to 2022.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Review
- Dementia risk in patients with type 2 diabetes: Comparing metformin with no pharmacological treatment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023Article
- Optimal Weighting of Preclinical Alzheimer's Cognitive Composite (PACC) Scales to Improve their Performance as Outcome Measures for Alzheimer's Disease Clinical Trials.International journal of statistics in medical research · 2023Article
- Hypoglycemic medicines in the treatment of Alzheimer's disease: Pathophysiological links between AD and glucose metabolism.Frontiers in pharmacology · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We evaluated the effect of the antidiabetic drug metformin on patients enrolled in the ADNI study considering patients with mild cognitive impairment (MCI) due to Alzheimer's disease (AD). Employing data from this observational study, we performed a principal component analysis focusing on the cognitive sphere by evaluating data from neuropsychological tests included in a modified version of the Alzheimer's Disease Cooperative Study-Preclinical Alzheimer Cognitive Composite (ADCS-PACC). Second, we included the levels of amyloid-β, tau, and phosphorylated tau in CSF. We found that MCI metformin-treated patients were globally characterized as subjects with a better cognitive performance and CSF biomarkers profile than the mean population of MCI patients. On the other hand, control subjects and type 2 diabetes patients (T2D) were paired by age, gender, ApoE allele, and years of education, defining three groups: MCI, MCI + T2D, and MCI + T2D + metformin. We evaluated the effect of T2D and metformin treatment employing the PACC score and composites defined from standardized ADNI variables to evaluate the memory and learning function. We found that MCI + T2D patients had a worse cognitive performance than MCI patients, but this deleterious effect was not observed in MCI + T2D + metformin patients. These cognitive variations were associated with changes in cortical thickness and hippocampal volume. Finally, no differences were found in metabolic plasmatic parameters (glycemia, cholesterol, triglycerides). Our study-employing different strategies for data analysis from the global study ADNI-shows a beneficial effect of metformin treatment on cognitive performance, CSF biomarkers profile, and neuroanatomical measures in MCI due to AD patients.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.