Evidence map›Paper›PMID 41158627›Full record

SynthesisFrontiers in endocrinology2025

The rs7799039 variant in the leptin gene promoter drives insulin resistance through reduced serum leptin levels.

Yongyan Song, Youjin Zhang, Xinyu Liu, Wang Gong, Yinquan Ai, Binger Shen, Jing Li, Chuan He

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Frontiers in endocrinology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Review
  2. Observational
  3. Article
  4. 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

8 authors.

Yongyan Song *Central Laboratory, Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China.
Youjin Zhang *Central Laboratory, Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China.
Xinyu LiuClinical Medical College of Chengdu University, Chengdu, Sichuan, China.
Wang GongClinical Medical College of Chengdu University, Chengdu, Sichuan, China.
Yinquan AiClinical Medical College of Chengdu University, Chengdu, Sichuan, China.
Binger ShenClinical Medical College of Chengdu University, Chengdu, Sichuan, China.
Jing LiClinical Medical College of Chengdu University, Chengdu, Sichuan, China.
Chuan HeDepartment of Cardiology, Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The associations between the rs7799039 variant in the promoter region of the leptin gene ( Methods: Eligible studies were identified through a search of PubMed, Google Scholar, Embase, Cochrane Library, Web of Science, CNKI, Wanfang, and VIP databases. A random-effects model was employed, and the standardized mean difference (SMD) with 95% confidence interval (95% CI) was calculated to assess the differences in leptin levels and glucose-lipid metabolism markers between subjects with different genotypes of the rs7799039, rs1137100, rs1137101, or rs1805094 variants. Heterogeneity among studies was evaluated using Cochran's Q-test, based on the χ² statistic. Publication bias was assessed using Begg's test. Results: A total of 33 studies (10,471 subjects) for the rs7799039 variant, 12 studies (6,595 subjects) for the rs1137100 variant, 48 studies (18,890 subjects) for the rs1137101 variant, and 20 studies (5,051 subjects) for the rs1805094 variant were included in the pooled analyses. A significant association was found for A-allele carriers of Conclusions: The meta-analysis suggests that the A allele of Systematic review registration: , identifier CRD42025373543.

Indexed as

Insulin ResistanceLeptinPolymorphism, Single NucleotidePromoter Regions, GeneticHumansReceptors, LeptinLEP protein, humanLEPR protein, humanLeptinReceptors, Leptinglucose-lipid metabolismleptinrs1137101rs1805094rs7799039variant

Identifiers

PMID41158627
PMCPMC12554595

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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.