Results 11 to 20 of about 21,939 (215)

Pivotal role of High-Mobility Group Box 2 in ovarian folliculogenesis and fertility

open access: yesJournal of Ovarian Research, 2022
Background High-Mobility Group Box 1 (HMGB1) and HMGB2 are chromatin-associated proteins that belong to the HMG protein family, and are involved in the regulation of DNA transcription during cell differentiation, proliferation and regeneration in various
Shinichiro Shirouzu   +12 more
doaj   +1 more source

A Feasible Option before Cycle Cancellation for Poor Responders; STOP-START Protocol [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2021
Despite the advances in controlled ovarian stimulation (COS), management of a subgroup of poor ovarian responderpatients may still be challenging. We describe a feasible and simplified protocol, namely the STOP-START protocol,for poor responders defined ...
Cem Somer Atabekoğlu   +5 more
doaj   +1 more source

Disruption of Epidermal Growth Factor Receptor but Not EGF Blocks Follicle Activation in Zebrafish Ovary

open access: yesFrontiers in Cell and Developmental Biology, 2022
Folliculogenesis is controlled by intimate communications between oocytes and surrounding follicle cells. Epidermal growth factor (EGF/Egf) is an important paracrine/autocrine factor in vertebrate ovary, and it is well known for its stimulation of oocyte
Yanlong Song   +3 more
doaj   +1 more source

Neurotrophic factors in the porcine ovary: Their effects on follicular growth, oocyte maturation, and developmental competence

open access: yesFrontiers in Veterinary Science, 2022
Pigs are cost-effective industrial animals because they produce a large number of offspring and have shorter rebreeding intervals compared with other animals, such as non-human primates.
Mirae Kim   +4 more
doaj   +1 more source

The spatiotemporal expression pattern of the bone morphogenetic protein family in rat ovary cell types during the estrous cycle. [PDF]

open access: yes, 2003
In the mammalian ovary, great interest in the expression and function of the bone morphogenetic protein (BMP) family has been recently generated from evidence of their critical role in determining folliculogenesis and female fertility.
Erickson, Gregory F, Shimasaki, Shunichi
core   +3 more sources

Foliculogénesis Ovárica en la Raya Marmorada, Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes, Rajidae) [PDF]

open access: yes, 2011
Los Condrictios se han convertido en un recurso económico importante en las últimas décadas, siendo Argentina uno de los países que más explota tiburones y rayas, incluso a niveles que exceden los límites de varias especies.
Díaz Andrade, María Constanza   +3 more
core   +1 more source

Myrianthus arboreus P. Beauv (Cecropiaceae) Extracts Accelerates Sexual Maturation, and Increases Fertility Index and Gestational Rate in Female Wistar Rats

open access: yesMedicines, 2018
Background: Despite the wide use of leaves of Myrianthus arboreus (Cecropiaceae) in several African countries including Cameroon as food and against amenorrhea and female infertility, it has never been tested for this purpose.
Charline Florence Awounfack   +7 more
doaj   +1 more source

Apoptosis during folliculogenesis in pigs [PDF]

open access: yesBioscientifica Proceedings, 2020
The number of female germ cells in pig fetuses decreases by 70% between day 50 after mating and day 300 after birth. Approximately 55% of antral follicles undergo degeneration (atresia) except during the 3 days before oestrus, when only 15% of the follicles survive to ovulate.
H D, Guthrie, W M, Garrett
openaire   +2 more sources

hnRNPU Safeguards Oocyte Development and Female Fertility via Regulation of Alternative Splicing. [PDF]

open access: yesFASEB J
Heterogeneous nuclear ribonucleoprotein U (hnRNPU) is essential for oocyte development and female fertility. Oocyte‐specific deletion of Hnrnpu leads to follicular arrest, impaired meiotic maturation, mitochondrial dysfunction, and infertility.
Li J   +8 more
europepmc   +2 more sources

El sistema reproductor femenino de Zearaja chilensis (Guichenot, 1848) (Chondrichthyes, Rajidae): Gametogénesis y validación microscópica de los criterios de madurez [PDF]

open access: yes, 2015
Los condrictios son extremadamente susceptibles a la explotación pesquera debido, entre otras cosas, a sus adaptaciones reproductivas. Los conocimientos básicos de sus parámetros reproductivos son esenciales, ya sea desde el punto de vista ecológico como
Di Giacomo, Edgardo Ernesto   +2 more
core   +1 more source

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