Results 61 to 70 of about 290,530 (261)

Technologies for the Production of Fertilizable Mammalian Oocytes

open access: yesApplied Sciences, 2019
Women affected by ovarian pathologies or with cancer can usually preserve fertility by egg/embryo freezing. When oocyte retrieval is not feasible, the only option available is ovarian tissue cryopreservation and transplantation.
Gianna Rossi   +6 more
doaj   +1 more source

Effect of single versus grouped culture of human cumulus–oocyte complexes in PCOS women treated with biphasic in vitro maturation: A sibling oocyte pilot study

open access: yesReproductive Medicine and Biology
Purpose This study investigated the differences in the maturation rate of single versus grouped cumulus–oocyte complexes (COCs) culture methods for capacitation in vitro maturation (CAPA‐IVM) in women with polycystic ovary syndrome (PCOS).
Huy H. Pham   +11 more
doaj   +1 more source

Gastric LTi cells promote lymphoid follicle formation but are limited by IRAK-M and do not alter microbial growth. [PDF]

open access: yes, 2015
Lymphoid tissue inducer (LTi) cells are activated by accessory cell IL-23, and promote lymphoid tissue genesis and antibacterial peptide production by the mucosal epithelium.
Banerjee, A   +9 more
core   +2 more sources

Disordered follicle development [PDF]

open access: yesMolecular and Cellular Endocrinology, 2013
Alterations of ovarian follicle morphology and function have been well documented in women with PCOS. These include increased numbers of growing preantral follicles, failure of follicle growth beyond the mid-antral stage, evidence of granulosa call degeneration, and theca cell hyperplasia.
R. Jeffrey Chang, Heidi Cook-Andersen
openaire   +3 more sources

The effect of salinity on transovarial transmission of a microsporidian infecting Gammarus duebeni [PDF]

open access: yes, 1997
This is an investigation of the impact of salinity on transovarial transmission and burden of a microsporidian sex ratio distorter in the inter-tidal crustacean Gammarus duebeni.
Dunn, A.M., Hatcher, M.J.
core   +1 more source

Função ovariana de novilhas Nelore alimentadas com dieta suplementada com gordura protegida ruminal Ovarian function of Nelore heifers fed a diet supplemented with rumen-protected fat

open access: yesPesquisa Agropecuária Brasileira, 2010
O objetivo deste trabalho foi avaliar o efeito da suplementação alimentar com gordura protegida ruminal sobre as estruturas ovarianas e sobre a concentração sérica de progesterona, em novilhas Nelore mantidas em pasto.
Monique Mendes Guardieiro   +6 more
doaj   +1 more source

Regulation of the G2/M Transition in Rodent Oocytes [PDF]

open access: yes, 2010
Regulation of maturation in meiotically competent mammalian oocytes is a complex process involving the carefully coordinated exchange of signals between the somatic and germ cell compartments of the ovarian follicle via paracrine and cell–cell coupling ...
Downs, Stephen
core   +2 more sources

A Phosphotyrosine Switch in Estrogen Receptor β Is Required for Mouse Ovarian Function

open access: yesFrontiers in Cell and Developmental Biology, 2021
The two homologous estrogen receptors ERα and ERβ exert distinct effects on their cognate tissues. Previous work from our laboratory identified an ERβ-specific phosphotyrosine residue that regulates ERβ transcriptional activity and antitumor function in ...
Bin Yuan   +4 more
doaj   +1 more source

Role of androgen and gonadotrophins in the development and function of the Sertoli cells and Leydig cells: data from mutant and genetically modified mice [PDF]

open access: yes, 2009
Development and maintenance of the male phenotype and establishment of fertility are all dependent upon the activity of the Sertoli cells and Leydig cells of the testis.
Abel, M.H.   +4 more
core   +1 more source

Effect of negative energy balance on plasma metabolites, minerals, hormones, cytokines and ovarian follicular growth rate in Holstein dairy cows

open access: yesJournal of Veterinary Research, 2021
The aim of this study was to evaluate the effect of negative energy balance (NEB) on the final growth of the dominant ovarian follicle in Holstein cows.
Song Yuxi   +5 more
doaj   +1 more source

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