Evidence map›Paper›PMID 42493728›Full record

ArticleInternal and emergency medicine2026

Impact of semaglutide on cognitive function in patients with type 2 diabetes and mild cognitive impairment: a 24-month observational study.

Giuliano Cassataro, Silvia Scriffignano, Giulio Geraci, Giuseppa Augello, Maria Angela Grasso, Maria Enza D'Ippolito, Maria Grazia Puleo, Marcello Cadelo, Maurizio Renda, Antonino Tuttolomondo

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In one paragraph

Article in Internal and emergency medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Giuliano CassataroMedicine and Pulmonology Ward, Fondazione Istituto "G. Giglio", Cefalù, Italy. giuliano.cassat@gmail.com.ORCID http://orcid.org/0000-0001-8511-3589
Silvia ScriffignanoMedicine and Pulmonology Ward, Fondazione Istituto "G. Giglio", Cefalù, Italy.
Giulio GeraciInternal Medicine Unit, Hospital Umberto I, Enna, Italy.
Giuseppa AugelloInstitute for Biomedical Research and Innovation, National Research Council (CNR), Palermo, Italy.
Maria Angela GrassoClinical Laboratory and Microbiology Unit, Fondazione Istituto "G. Giglio", Cefalù, Italy.
Maria Enza D'IppolitoClinical Laboratory and Microbiology Unit, Fondazione Istituto "G. Giglio", Cefalù, Italy.
Maria Grazia PuleoInternal Medicine and Stroke Care Ward, University Hospital, Policlinico "Paolo Giaccone", Palermo, Italy.
Marcello CadeloFondazione Istituto "G. Giglio", Cefalù, Italy.
Maurizio RendaMedicine and Pulmonology Ward, Fondazione Istituto "G. Giglio", Cefalù, Italy.
Antonino TuttolomondoDepartment of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, Palermo, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Type 2 diabetes mellitus (T2DM) is associated with an increased risk of mild cognitive impairment (MCI) and dementia. Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) provide cardiovascular and metabolic benefits, and emerging data suggest neurocognitive effects. We conducted a 24-month prospective observational study of 72 adults (≥ 50 years) with T2DM and MCI treated with semaglutide (subcutaneous [SC] or oral) and assessed at baseline (T0) and every 6 months (T1-T4). Outcomes included anthropometrics, fasting glucose, HbA1c, LDL-c, and neuropsychological tests (Montreal Cognitive Assessment [MoCA], Digit Symbol Substitution Test [DSST], Beck Depression Inventory [BDI]). A control cohort of 60 patients with T2DM and MCI not receiving semaglutide was evaluated with the same protocol. Semaglutide was associated with significant reductions in body weight, BMI, waist circumference, fasting glucose, and HbA1c (all p < 0.05). Cognitive performance improved, as shown by MoCA scores (median Δ≈ + 4 points, p < 0.001) at T4 compared with T0; at T4, semaglutide recipients also had higher MoCA scores than controls (+ 4.0 vs - 1.5, p < 0.001). DSST and BDI scores also improved (p = 0.001 and p = 0.044, respectively). MoCA improved similarly with both formulations, whereas DSST improvement reached significance only with SC semaglutide. In multivariable regression, semaglutide independently predicted MoCA improvement (+ 4.76 points, p < 0.001). No semaglutide-treated patient progressed to dementia versus 14 in controls (p = 0.002). In adults with T2DM and MCI, semaglutide was associated with improved cognition and a lower risk of progression to dementia. Differences between formulations may reflect distinct central nervous system engagement. Randomized trials are warranted.

Indexed as

CognitionGLP-1 receptor agonistMild cognitive impairmentSemaglutideType 2 diabetes mellitus

Identifiers

PMID42493728

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 Socratic graph.