Evidence map›Paper›PMID 40760825›Full record

ArticleBrain and behavior2025

Exploring 1400 Plasma Metabolites and Polycystic Ovary Syndrome: A Bidirectional Mendelian Randomization Study.

Xiaoli Lei, Xiaobei Liu, Yi Qu, Yanqin Huang

Abstract read
In one paragraph

Article in Brain and behavior, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

  1. Article
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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

4 authors.

Xiaoli LeiThe First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China.ORCID https://orcid.org/0009-0007-2093-1135
Xiaobei LiuDepartment of Reproductive Genetics, Taian Central Hospital, Taian, China.ORCID https://orcid.org/0000-0002-2618-8748
Yi QuThe First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China.ORCID https://orcid.org/0009-0000-8192-7120
Yanqin HuangDepartment of Endocrinology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.ORCID https://orcid.org/0000-0001-7249-9427

Funding

National Traditional Chinese Medicine Education Letter (2022)NO.75Taishan Scholar Foundation of Shandong Province tsqn202211354
6 · The paper itself

Abstract

backgroundEvidence concerning the causal effects of blood metabolites on polycystic ovary syndrome (PCOS) risk remains scarce. A two-sample Mendelian randomization (MR) analysis was performed among individuals of European ancestry to establish a causal relationship between plasma metabolites and the risk of PCOS.

objectiveTo determine causal associations between 1400 blood metabolites and PCOS.

methodsUtilizing data from a GWAS, which encompasses over 1400 blood metabolites, bidirectional MR was employed to explore the potential causal associations between PCOS and these metabolites. Causal inference methods included inverse variance weighting, MR-Egger regression, weighted median, weighted mode, and simple mode approaches. Sensitivity analyses were performed to validate the robustness of the results. Reverse MR analyzed 1400 blood metabolites as outcomes and PCOS as the exposure.

resultsFifteen plasma metabolites, including methionine sulfoxide, N-acetylserine, and glycine, exhibited positive causal effects on PCOS risk. In contrast, 13 metabolites, including threonate, 7-methylguanine, and theophylline, demonstrated protective effects. Leave-one-out analysis confirmed the stability of the results, with no influential instrumental variables, and eliminated the impacts of heterogeneity and horizontal pleiotropy. Reverse MR revealed no evidence of causal associations between PCOS and the metabolites.

conclusionThirteen plasma metabolites were identified as protective factors for PCOS. Targeted modulation of these metabolites may improve metabolic dysfunction in patients, alleviating symptoms and enhancing quality of life. Further exploration of metabolite dynamics could advance mechanistic insights into PCOS pathogenesis and inform therapeutic development.

Indexed as

MetabolomePolycystic Ovary SyndromeAdultFemaleGenome-Wide Association StudyHumansMendelian Randomization AnalysisPolymorphism, Single Nucleotide1400 plasma metabolitescausalityMendelian randomizationpolycystic ovary syndrome

Identifiers

PMID40760825
PMCPMC12321964

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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.