Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity

Abstract Purpose We evaluated factors affecting the development of endometrial receptivity according to age and changes in the endometrial microbiota. Methods We recruited patients with infertility who underwent transcriptomic analyses of endometrial receptivity and the endometrial microbiome prior...

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Main Authors: Shunsaku Fujii, Takaaki Oguchi
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Reproductive Medicine and Biology
Subjects:
Online Access:https://doi.org/10.1002/rmb2.12523
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author Shunsaku Fujii
Takaaki Oguchi
author_facet Shunsaku Fujii
Takaaki Oguchi
author_sort Shunsaku Fujii
collection DOAJ
description Abstract Purpose We evaluated factors affecting the development of endometrial receptivity according to age and changes in the endometrial microbiota. Methods We recruited patients with infertility who underwent transcriptomic analyses of endometrial receptivity and the endometrial microbiome prior to frozen embryo transfer. An endometrial biopsy was performed 108 h after initial progesterone administration. Results In 185 tests from 185 eligible patients, the results of endometrial receptivity analysis were receptive in 111 (60.0%) patients and pre‐receptive in 74 (40.0%) patients. Compared with receptive patients, pre‐receptive patients had significantly older ages (36.0 ± 0.5 vs. 38.2 ± 0.5, p = 0.0021), a smaller proportion of normal Lactobacillus‐dominant microbiota (27.9% vs. 12.2%), and a greater proportion of microbiota with ultralow biomass (22.5% vs. 41.9%) (p = 0.0074). Patient age (adjusted odds ratio: 1.08, 95% confidence interval: 1.01–1.16, p = 0.0351) and a microbiome with ultralow biomass (adjusted odds ratio: 3.82, 95% confidence interval: 1.49–9.82, p = 0.0039) were independent predictive factors for pre‐receptive endometrium. Conclusions Older age was accompanied by a decrease in Lactobacillus‐dominant microbiota; aging and endometrial microbiota with ultralow biomass were significantly associated with pre‐receptive endometrium. Our findings suggest that the quantity (rather than proportion) of Lactobacillus in the endometrium is important in the development of endometrial receptivity.
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spelling doaj.art-b96f1785125c4311b53061f723336dc22023-12-26T04:30:45ZengWileyReproductive Medicine and Biology1445-57811447-05782023-01-01221n/an/a10.1002/rmb2.12523Age‐ and endometrial microbiota‐related delay in development of endometrial receptivityShunsaku Fujii0Takaaki Oguchi1ef.clinic Aomori Japanef.clinic Aomori JapanAbstract Purpose We evaluated factors affecting the development of endometrial receptivity according to age and changes in the endometrial microbiota. Methods We recruited patients with infertility who underwent transcriptomic analyses of endometrial receptivity and the endometrial microbiome prior to frozen embryo transfer. An endometrial biopsy was performed 108 h after initial progesterone administration. Results In 185 tests from 185 eligible patients, the results of endometrial receptivity analysis were receptive in 111 (60.0%) patients and pre‐receptive in 74 (40.0%) patients. Compared with receptive patients, pre‐receptive patients had significantly older ages (36.0 ± 0.5 vs. 38.2 ± 0.5, p = 0.0021), a smaller proportion of normal Lactobacillus‐dominant microbiota (27.9% vs. 12.2%), and a greater proportion of microbiota with ultralow biomass (22.5% vs. 41.9%) (p = 0.0074). Patient age (adjusted odds ratio: 1.08, 95% confidence interval: 1.01–1.16, p = 0.0351) and a microbiome with ultralow biomass (adjusted odds ratio: 3.82, 95% confidence interval: 1.49–9.82, p = 0.0039) were independent predictive factors for pre‐receptive endometrium. Conclusions Older age was accompanied by a decrease in Lactobacillus‐dominant microbiota; aging and endometrial microbiota with ultralow biomass were significantly associated with pre‐receptive endometrium. Our findings suggest that the quantity (rather than proportion) of Lactobacillus in the endometrium is important in the development of endometrial receptivity.https://doi.org/10.1002/rmb2.12523agingassisted reproductive techniquesendometriuminfertilitymicrobiota
spellingShingle Shunsaku Fujii
Takaaki Oguchi
Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
Reproductive Medicine and Biology
aging
assisted reproductive techniques
endometrium
infertility
microbiota
title Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
title_full Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
title_fullStr Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
title_full_unstemmed Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
title_short Age‐ and endometrial microbiota‐related delay in development of endometrial receptivity
title_sort age and endometrial microbiota related delay in development of endometrial receptivity
topic aging
assisted reproductive techniques
endometrium
infertility
microbiota
url https://doi.org/10.1002/rmb2.12523
work_keys_str_mv AT shunsakufujii ageandendometrialmicrobiotarelateddelayindevelopmentofendometrialreceptivity
AT takaakioguchi ageandendometrialmicrobiotarelateddelayindevelopmentofendometrialreceptivity