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   Articles with "oocyte" as a keyword



A biophotonic approach to measure pH in small volumes in vitro: quantifiable differences in metabolic flux around the cumulus-oocyte-complex (COC).

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recommendations! Published in 2019 at "Journal of biophotonics"

DOI: 10.1002/jbio.201960038

Abstract: Unfertilised eggs (oocytes) release chemical biomarkers into the medium surrounding them. This provides an opportunity to monitor cell health and development during assisted reproductive processes if detected in a non-invasive manner. Here we report the… read more here.

Keywords: coc; biophotonic approach; approach measure; oocyte ... See more keywords

Improvement of oocyte in vitro maturation from mice with polycystic ovary syndrome by human mesenchymal stromal cell–conditioned media

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recommendations! Published in 2018 at "Journal of Cellular Biochemistry"

DOI: 10.1002/jcb.27380

Abstract: The outcome of in vitro maturation (IVM) in the patients with polycystic ovary syndrome (PCOS) is poor. Abnormal intraovarian paracrine interplay alters microenvironment for oocyte development through folliculogenesis and decreases developmental competence of oocytes in… read more here.

Keywords: pcos; oocyte; vitro maturation; maturation ... See more keywords

Fibroblast growth factor 10 markedly improves in vitro maturation of porcine cumulus‐oocyte complexes

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recommendations! Published in 2017 at "Molecular Reproduction and Development"

DOI: 10.1002/mrd.22756

Abstract: Growth factors synthesized by ovarian somatic cells affect cumulus cell expansion and oocyte maturation in vitro. Fibroblast growth factor 10 (FGF10), for example, is a known regulator of mammalian cumulus‐oocyte complex maturation. In this study,… read more here.

Keywords: cell; cumulus; oocyte; treated group ... See more keywords

Oxidative stress as a damage mechanism in porcine cumulus‐oocyte complexes exposed to malathion during in vitro maturation

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recommendations! Published in 2017 at "Environmental Toxicology"

DOI: 10.1002/tox.22384

Abstract: Malathion is one of the most commonly used insecticides. Recent findings have demonstrated that it induces oxidative stress in somatic cells, but there are not enough studies that have demonstrated this effect in germ cells.… read more here.

Keywords: oocyte; malathion; damage; maturation ... See more keywords

Modulation of P2Y2 receptors in bovine cumulus oocyte complexes: effects on intracellular calcium, zona hardening and developmental competence

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recommendations! Published in 2020 at "Purinergic Signalling"

DOI: 10.1007/s11302-020-09690-6

Abstract: The improvement of cryopreserved oocyte survival is imperative for the preservation of female fertility. In this study, we investigate whether P2Y2 receptors (P2Y2R) can be directly implicated in calcium (Ca 2+ ) homeostasis misbalances observed… read more here.

Keywords: competence; p2y2 receptors; oocyte; p2y2r ... See more keywords

Intrinsic fertility of human oocytes.

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recommendations! Published in 2017 at "Fertility and sterility"

DOI: 10.1016/j.fertnstert.2017.03.014

Abstract: OBJECTIVE To study the intrinsic fertility of the human oocyte. DESIGN A large retrospective study of natural cycle single embryo transfer (ET) IVF cycles. SETTING Private IVF clinic, university, and private hospital. PATIENT(S) Patients were… read more here.

Keywords: age; natural cycle; oocyte; fertility human ... See more keywords

Appraisal of clinical complications after 23,827 oocyte retrievals in a large assisted reproductive technology program.

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recommendations! Published in 2018 at "Fertility and sterility"

DOI: 10.1016/j.fertnstert.2018.02.002

Abstract: OBJECTIVE To assess complications encountered after transvaginal oocyte retrieval procedures. DESIGN Retrospective analysis. SETTING University hospital, fertility center. PATIENT(S) A total of 23,827 consecutive transvaginal oocyte retrieval procedures in 12,615 patients. INTERVENTION(S) Oocyte retrieval procedures… read more here.

Keywords: clinical complications; retrieval procedures; retrieval; oocyte ... See more keywords

Final oocyte maturation with a dual trigger compared to human chorionic gonadotropin trigger in antagonist co-treated cycles: A randomized clinical trial

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recommendations! Published in 2018 at "Middle East Fertility Society Journal"

DOI: 10.1016/j.mefs.2018.01.001

Abstract: Abstract Objective This clinical trial compared the effect of a dual trigger treatment (combination of gonadotropin-releasing hormone (GnRH) agonist and human chorionic gonadotropin (hCG) and hCG alone on oocyte quality and metaphase II oocytes’ number.… read more here.

Keywords: clinical trial; dual trigger; gonadotropin; oocyte ... See more keywords
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Ovarian and Oocyte morphology during the spring-summer and fall-winter in queens (Felis catus) kept in a tropical climate.

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recommendations! Published in 2021 at "Topics in companion animal medicine"

DOI: 10.1016/j.tcam.2021.100510

Abstract: The objective of this study was to investigate the effects of seasonality and phase of the estrous cycle on ovarian and oocyte morphology in domestic cats kept in a tropical region. The ovaries from 23… read more here.

Keywords: spring summer; oocyte; morphology; ovarian oocyte ... See more keywords

Roles of progesterone receptor membrane component 1 and membrane progestin receptor alpha in regulation of zebrafish oocyte maturation.

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recommendations! Published in 2018 at "General and comparative endocrinology"

DOI: 10.1016/j.ygcen.2018.04.009

Abstract: Although previous studies suggest membrane progesterone receptor alpha (mPRα/Paqr7) mediates 17, 20β-dihydroxy-4-pregnen-3-one (DHP) induction of oocyte maturation (OM) in zebrafish, critical information needed to establish mPRα as the receptor mediating OM is lacking. The relative… read more here.

Keywords: progesterone receptor; oocyte; mpr; induction ... See more keywords

Vitellogenin receptor mediates heat adaptability of oocyte development in mud crabs and zebrafish

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recommendations! Published in 2025 at "Nature Communications"

DOI: 10.1038/s41467-025-59035-3

Abstract: Climate-driven warming affects the reproduction of oviparous ectotherms. However, whether oviparous ectotherms possess a protection mechanism against heat stress for oocyte development, which is essential for maintaining the continuity of animal populations, is largely unknown.… read more here.

Keywords: oocyte development; oocyte; mud crabs; heat ... See more keywords