Evidence map›Paper›PMID 41947971›Full record

ReviewFrontiers in clinical diabetes and healthcare2026

Linking inflammation, metabolic dysfunction, and neurodegeneration: a comprehensive review of TLR2 pathways in type 2 diabetes.

Juan Antonio Arreguín-Cano, Sandra Aidé Santana-Delgado, Carlos Esteban Villegas-Mercado, Grissel Guadalupe Orozco-Molina, Adolfo González-Acosta, Mercedes Bermúdez

Abstract readReview
In one paragraph

Review in Frontiers in clinical diabetes and healthcare, 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

6 authors.

Juan Antonio Arreguín-CanoFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.
Sandra Aidé Santana-DelgadoFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.
Carlos Esteban Villegas-MercadoFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.
Grissel Guadalupe Orozco-MolinaFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.
Adolfo González-AcostaFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.
Mercedes BermúdezFaculty of Dentistry, Autonomous University of Chihuahua, Chihuahua, Mexico.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder increasingly recognized as a systemic inflammatory condition with significant neurological effects. Growing evidence shows that chronic low-grade inflammation (CLGI), insulin resistance, and metabolic imbalance contribute to cognitive decline and the development of neurodegenerative diseases like Alzheimer's and Parkinson's. Toll-like receptor 2 (TLR2), a critical pattern-recognition receptor of the innate immune system, has emerged as an essential molecular link between metabolic dysfunction and neuroinflammation and neuronal damage. This review summarizes current experimental, clinical, and translational evidence on the role of TLR2 in T2DM-related inflammation, mitochondrial dysfunction, lipid imbalance, insulin resistance, and blood-brain barrier (BBB) issues. We explore how ongoing TLR2 activation by internal danger signals and metabolic stressors maintains systemic inflammation and fuels neuroimmune responses via microglial activation and cytokine release, thereby accelerating neurodegenerative processes. Additionally, we discuss new therapeutic strategies targeting TLR2 signaling, including drugs, dietary supplements, and the repurposing of antidiabetic medications with neuroprotective effects. By combining immunometabolic and neurodegenerative pathways, this review highlights TLR2 as a promising target for preventing or reducing diabetes-related cognitive decline neurodegeneration.

Indexed as

chronic low-grade inflammationimmunometabolisminsulin resistanceneurodegenerationneuroinflammationtoll-like receptor 2 (TLR2)type 2 diabetes mellitus (T2DM)

Identifiers

PMID41947971
PMCPMC13050753

What OpenQuestion holds

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Registered trials

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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.