{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T17:02:13Z","timestamp":1792083733741,"version":"4.4.0"},"reference-count":52,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T00:00:00Z","timestamp":1768176000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Women of reproductive age, especially those with polycystic ovarian syndrome (PCOS), often use glucagon-like peptide-1 receptor agonists (GLP-1RAs) to improve their metabolic functions. A growing body of evidence suggests that GLP-1R signaling may directly affect ovarian physiology, influencing granulosa cell proliferation, survival pathways, and steroidogenic production, in addition to its systemic metabolic effects. Nonetheless, there is a limited comprehension of the molecular mechanisms that regulate these activities and their correlation with menstrual function, reproductive potential, and assisted reproduction. This comprehensive review focuses on ovarian biology, granulosa cell signaling networks, steroidogenesis, and translational fertility outcomes, integrating clinical, in vivo, and in vitro information to elucidate the effects of GLP-1 receptor agonists on reproductive health. We conducted a thorough search of PubMed, Scopus, and Web of Science for randomized trials, prospective studies, animal models, and cellular experiments evaluating the effects of GLP-1RA on reproductive or ovarian outcomes, in accordance with PRISMA criteria. The retrieved data included metabolic changes, androgen levels, monthly regularity, ovarian structure, granulosa cell growth and death, FOXO1 signaling, FSH-cAMP-BMP pathway activity, and fertility or IVF results. Clinical trials shown that GLP-1 receptor agonists improve menstrual regularity, decrease body weight and central adiposity, increase sex hormone-binding globulin levels, and lower free testosterone in overweight and obese women with PCOS. Liraglutide, when combined with metformin, significantly improved IVF pregnancy rates, whereas exenatide increased natural conception rates. Mechanistic studies demonstrate that GLP-1R activation affects FOXO1 phosphorylation, hence promoting granulosa cell proliferation and anti-apoptotic processes. Incretin signaling altered steroidogenesis by reducing the levels of StAR, P450scc, and 3\u03b2-HSD, so inhibiting FSH-induced progesterone synthesis, while simultaneously enhancing BMP-Smad signaling. Animal studies demonstrated both beneficial (enhanced follicular growth, anti-apoptotic effects) and detrimental results (oxidative stress, granulosa cell death, uterine inflammation), indicating a context- and dose-dependent response. GLP-1 receptor agonists influence female reproductive biology by altering overall physiological processes and specifically impacting the ovaries via FOXO1 regulation, steroidogenic enzyme expression, and BMP-mediated FSH signaling. Preliminary clinical data indicate improved reproductive function in PCOS, as seen by increased pregnancy rates in both natural and IVF cycles; nevertheless, animal studies reveal a potential risk of ovarian and endometrial damage. These results highlight the need for controlled human research to clarify reproductive safety, molecular pathways, and optimum therapy timing, particularly in non-PCOS patients and IVF settings.<\/jats:p>","DOI":"10.3390\/ijms27020759","type":"journal-article","created":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T12:44:44Z","timestamp":1768221884000},"page":"759","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["A Systematic Review on GLP-1 Receptor Agonists in Reproductive Health: Integrating IVF Data, Ovarian Physiology and Molecular Mechanisms"],"prefix":"10.3390","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9477-7619","authenticated-orcid":false,"given":"Charalampos","family":"Voros","sequence":"first","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fotios","family":"Chatzinikolaou","sequence":"additional","affiliation":[{"name":"Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9723-5054","authenticated-orcid":false,"given":"Ioannis","family":"Papapanagiotou","sequence":"additional","affiliation":[{"name":"Athens Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Spyridon","family":"Polykalas","sequence":"additional","affiliation":[{"name":"Athens Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1220-6594","authenticated-orcid":false,"given":"Despoina","family":"Mavrogianni","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aristotelis-Marios","family":"Koulakmanidis","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diamantis","family":"Athanasiou","sequence":"additional","affiliation":[{"name":"King\u2019s College Hospitals NHS Foundation Trust, London SE5 9RS, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vasiliki","family":"Kanaka","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7563-4305","authenticated-orcid":false,"given":"Kyriakos","family":"Bananis","sequence":"additional","affiliation":[{"name":"King\u2019s College Hospitals NHS Foundation Trust, London SE5 9RS, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonia","family":"Athanasiou","sequence":"additional","affiliation":[{"name":"IVF Athens Reproduction Center, 15123 Maroussi, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aikaterini","family":"Athanasiou","sequence":"additional","affiliation":[{"name":"IVF Athens Reproduction Center, 15123 Maroussi, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgios","family":"Papadimas","sequence":"additional","affiliation":[{"name":"Athens Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charalampos","family":"Tsimpoukelis","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitrios","family":"Vaitsis","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Athanasios","family":"Karpouzos","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Anastasia","family":"Daskalaki","sequence":"additional","affiliation":[{"name":"1st Department of Obstetrics and Gynecology, \u2018Alexandra\u2019 General Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sofias Avenue, 11528 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolaos","family":"Kanakas","sequence":"additional","affiliation":[{"name":"School of Medicine, European University Cyprus, Nicosia 2404, 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