GLP-1 Evidence

Not medical advice. A record of published research and our assessments of it. The limits

The effects of GLP-1 receptor agonists on metabolic inflammatory markers in patients with type 2 diabetes mellitus: a systematic review and meta-analysis

Design
Meta-analysis · 1878 participants · Biomarker outcome
Match to healthy normal-weight adults aged 55–75
Different population[Auto] Synthesis of studies conducted predominantly in people with type 2 diabetes.
Could weight loss explain it?
Possibly[Auto] Participants had obesity and/or type 2 diabetes and the abstract does not separate direct drug effects from weight loss or glycaemic improvement.
Study tier
Study tier 3[Auto] Systematic review/meta-analysis including observational studies (auto-provisional).
Assessment
Version 1 · automatic, not yet reviewed by a person · Sep 13, 2026

Study facts come from the paper. Population match, weight-loss explanation and study tier are our judgments, made against the reference group of healthy normal-weight adults aged 55–75.

[Auto, unreviewed; quoted from abstract conclusions] GLP-1 RAs exhibit a certain degree of anti-inflammatory effect in patients with T2DM, effectively reducing CRP and TNF-α levels. The anti-inflammatory efficacy appears to be influenced by both the type of drug used and the duration of treatment, with more pronounced effects observed for specific drug classes and with longer treatment periods. These findings provide further evidence supporting the use of GLP-1 RAs in the anti-inflammatory management of T2DM.

01Findings

What the study reported

Drugs
Class unspecified
Primary outcome
Not extracted
Effect
Not extracted
95% confidence interval
Not extracted
Follow-up
36 weeks
Adverse events
Not extracted
Limitations
Auto-classified from abstract only; effect estimates, adverse events and limitations not extracted. Requires manual review.

Who was studied

Diabetes status
type 2 diabetes present (all or most)
Sample size
1878

Study quality details

Study design
Meta-analysis
Sample size
1878
Randomization
n/a
Blinding
not stated
Comparator
not stated
Follow up duration
36 weeks
Outcome type
biomarker
Replication
not assessed (auto)
Consistency with other evidence
not assessed (auto)
Population applicability
INDIRECT
Statistical precision
CI reported: 95% CI [-0
Risk of bias
not assessed (auto)
Funding conflicts
unclear
Peer review status
yes
02Funding

Funding and conflicts

Funding
not reported in abstract
Industry funded
Unclear
Manufacturer
None identified
Sponsor role
not reported in abstract
Author conflicts
The authors declare there are no competing interests.
Independent replication
unknown

Funding is shown on every study and never used to score it.

04Source

The source, as retrieved

Abstract

[OBJECTIVE] This study aimed to evaluate the impact of GLP-1 receptor agonists (GLP-1 RAs) on metabolic inflammatory markers in patients with type 2 diabetes mellitus (T2DM), providing evidence-based insights for their potential application in anti-inflammatory therapy. [METHODS] Research questions were developed using the PICOS framework, and the study strictly adhered to PRISMA guidelines. Comprehensive literature searches were conducted across PubMed, EBSCO, Embase, Web of Science, and the Cochrane Library. Data synthesis and subgroup analyses (focusing on GLP-1 RA subtypes, treatment duration, and administration frequency) were performed using RevMan 5.4 software. [RESULTS] Out of 1,347 articles retrieved, 25 studies were ultimately included, comprising a total sample of 1,878 participants (879 in the experimental groups and 999 in the control groups). Quality assessment indicated that most studies exhibited a low risk of bias, with only one study rated as high risk and three studies showing some concerns. Meta-analysis results demonstrated that 18 studies reported a significant reduction in CRP levels in T2DM patients treated with GLP-1 RAs (SMD = -0.39, 95% CI [-0.72 to -0.06], P = 0.02, I2 = 88%). Although the results from 13 studies indicated a decreasing trend in IL-6 levels (SMD = -0.52), this change was not statistically significant (95% CI [-1.34 to 0.29], P = 0.21, I2 = 96%). Additionally, 14 studies showed that GLP-1 RAs significantly reduced TNF-α levels (SMD = -0.51, 95% CI [-0.81 to -0.20], P = 0.001, I2 = 81%). Subgroup analyses revealed that both the type of GLP-1 RA and a longer treatment duration (≥36 weeks) were associated with more pronounced improvements in inflammatory markers. [CONCLUSION] GLP-1 RAs exhibit a certain degree of anti-inflammatory effect in patients with T2DM, effectively reducing CRP and TNF-α levels. The anti-inflammatory efficacy appears to be influenced by both the type of drug used and the duration of treatment, with more pronounced effects observed for specific drug classes and with longer treatment periods. These findings provide further evidence supporting the use of GLP-1 RAs in the anti-inflammatory management of T2DM.

Where this record came from

SourceRetrievedIdentifier
pubmedSep 13, 202641660088
first ingestion