{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T20:12:43Z","timestamp":1790799163483,"version":"4.1.0"},"reference-count":45,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2022,12,2]],"date-time":"2022-12-02T00:00:00Z","timestamp":1669939200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>There is great controversy as to whether women with Diminished Ovarian Reserve (DOR) exhibit only a quantitative decrease in ovarian reserve or also impaired oocyte and embryo quality. In this retrospective study, we aimed to evaluate the impact of DOR on embryo morphokinetic parameters with a time-lapse system. 1314 embryos were obtained from 256 couples undergoing IVF or ICSI cycles, with 242 embryos in the DOR group as classified by the Bologna and POSEIDON criteria and 1072 embryos derived from the Normal Ovarian Reserve (NOR) group. For each morphokinetic parameter (t2, t3, t4, t5, t8, tB, ECC2, cc2a, ECC3, s2, s3), a generalized linear mixed model was created to control for female age, BMI, smoking status, method of insemination and correlation between oocytes from a same cohort. No significant association was found between DOR and any of the morphokinetic parameters studied. In a secondary analysis, we evaluated the influence of maternal aging, comparing morphokinetic characteristics between two age groups (&lt;37 and \u226537 years). In the univariate analysis, we found that embryos from older women displayed a slower embryo development (in particular for t3, t4, t5, tB, and ECC2), although without statistical significance in the multivariate analysis. In conclusion, our study did not reveal any substantial impact of ovarian aging on early morphokinetic parameters and suggested potential biases that may be a source of controversy in the literature.<\/jats:p>","DOI":"10.3390\/jcm11237173","type":"journal-article","created":{"date-parts":[[2022,12,2]],"date-time":"2022-12-02T03:55:37Z","timestamp":1669953337000},"page":"7173","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Influence of Diminished Ovarian Reserve on Early Embryo Morphokinetics during In Vitro Fertilization: A Time-Lapse Study"],"prefix":"10.3390","volume":"11","author":[{"given":"Lisa","family":"Boucret","sequence":"first","affiliation":[{"name":"Reproductive Biology Unit, Angers University Hospital, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L\u00e9a","family":"Tramon","sequence":"additional","affiliation":[{"name":"Reproductive Biology Unit, Angers University Hospital, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7056-9257","authenticated-orcid":false,"given":"J\u00e9r\u00e9mie","family":"Riou","sequence":"additional","affiliation":[{"name":"Delegation for Clinical Research and Innovation, Angers University Hospital, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V\u00e9ronique","family":"Ferr\u00e9-L\u2019H\u00f4tellier","sequence":"additional","affiliation":[{"name":"Reproductive Biology Unit, Angers University Hospital, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre-Emmanuel","family":"Bouet","sequence":"additional","affiliation":[{"name":"Department of Reproductive Medicine, Angers University Hospital, 49000 Angers, France"},{"name":"MITOVASC, INSERM 1083, CNRS 6015, Angers University, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7609-7265","authenticated-orcid":false,"given":"Pascale","family":"May-Panloup","sequence":"additional","affiliation":[{"name":"Reproductive Biology Unit, Angers University Hospital, 49000 Angers, France"},{"name":"MITOVASC, INSERM 1083, CNRS 6015, Angers University, 49000 Angers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,2]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Mean Age of Mother, 1970\u20132000","volume":"51","author":"Mathews","year":"2002","journal-title":"Natl. 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