Evidence mapPaperPMID 41999501Full record

ReviewCurrent microbiology2026

The Gut-Reproduction-Oral-Immune Axis: Microbial Dysbiosis as a Shared Driver in Polycystic Ovary Syndrome and Endometriosis.

Tiantian Li, Hongying Kuang, Jianing Zhang, Yushan Meng, Xiaoling Feng, Xin Mao, Zimeng Pan, Miao Sun

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In one paragraph

Review in Current microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing 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

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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

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No citing paper in PubMed yet.

4 · The record

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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.

Tiantian Li *Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China.
Hongying Kuang *Department of Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China.
Jianing ZhangGraduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China.
Yushan MengGraduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China.
Xiaoling FengDepartment of Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China.
Xin MaoTCM Department, Infectious Disease Hospital of Heilongjiang Province, Harbin, Heilongjiang, P. R. China.
Zimeng PanDepartment of Obstetrics and Gynecology, Shunyi Hospital, Beijing Hospital of Chinese Medicine, Beijing, P. R. China.
Miao SunDepartment of Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, P. R. China. sunmiao82@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polycystic ovary syndrome (PCOS) and Endometriosis (EMs) are common reproductive endocrine disorders in women of reproductive age, characterized by the co-occurrence of infertility, chronic low-grade inflammation, and chronic pelvic pain. In this review, the “Gut-Reproduction-Oral-Immune Axis” (GROI axis) is introduced as a shared upstream pathophysiological mechanism for PCOS and EMs, with microbial dysbiosis playing a crucial role in its dysregulation. Despite distinct core pathologies, with PCOS characterized by metabolic/endocrine dysfunction and EMs by inflammatory/estrogen-dependent lesion formation, similar microbial dysbiosis patterns may drive disease pathogenesis via host-specific factors. Research indicates that patients with PCOS and EMs have common microbiota dysbiosis characteristics, such as lower alpha diversity (α-diversity), increased levels of Prevotella, decreased levels of Lactobacillus, although the specific patterns may vary by location (e.g., gut, reproductive tract, oral cavity) due to site-specific physiological niches. This type of dysbiosis participates in the disease process through the dysbiosis-brain axis mechanism in three aspects: disrupting the hypothalamic-pituitary-adrenal/ovarian (HPA/O) axis to cause neuroendocrine imbalance; activating the immune inflammatory pathway to lead to chronic low-grade inflammation; and inducing peripheral and central neural sensitization through pro-inflammatory factors and neuroactive substances. These mechanisms are interwoven, forming a self-reinforcing vicious cycle: microbial dysbiosis triggers the neuroendocrine-immune-pain cascade reaction, and the subsequent hormone disorders, inflammatory state and chronic stress further feedback to aggravate the microbial ecological imbalance. This article systematically expounds the common mechanism of the GROI axis in PCOS and EMs, providing a new perspective for understanding their shared pathological basis and developing intervention strategies targeting the microecology.

Indexed as

DysbiosisEndometriosisGastrointestinal MicrobiomeMouthPolycystic Ovary SyndromeAnimalsFemaleHumansReproduction

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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 Socratic graph.