Results 71 to 80 of about 49,172 (278)
Regulation of reproduction via tight control of gonadotropin hormone levels. [PDF]
, 2018 Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH
Coss, Djurdjica
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Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Ovarian reserve and anti-Mullerian hormone (AMH) in mothers of dizygotic twins [PDF]
, 2013 This study aimed to explore if natural dizygotic (DZ) twinning is associated with earlier menopause and lower anti-Mullerian hormone (AMH) values. We investigated if advanced biological reproductive aging, which can be responsible for the multiple ...
Boomsma, Dorret I +4 more
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Oocyte–cumulus cell interaction: a key factor in early embryo development
Biological Reviews, EarlyView.ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido +2 more
wiley +1 more source
Intrauterine insemination outcome with and without ovulation induction treatment
مجله كليه طب الكندي, 2015 Background:: Infertility is a very common condition affecting approximately 13-14% of couples in the reproductive age. In general population; about 85% of couples have achieved conception within a year.
Adeela h H. Hussein +2 more
doaj
Oogenesis and germinal bed morphology of the brown anole (A. sagrei)
Developmental Dynamics, EarlyView.Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher +12 more
wiley +1 more source
Middle East Fertility Society Journal, 2014 Objective: To compare between gestagen versus oral contraceptive pills to induce withdrawal bleeding before induction of ovulation by clomiphene citrate in polycystic ovary syndrome. Design: Randomized controlled trial.
Yasser Ibrahim Orief +3 more
doaj +1 more source
Women with epilepsy: Evidence‐based counseling across the lifespan
Epilepsia, EarlyView.Abstract Women with epilepsy (WWE) encounter distinct and evolving challenges across the lifespan that require clinical management extending beyond seizure control alone. Although awareness of sex‐specific aspects of epilepsy has increased, important gaps remain in their integration into routine care.
Barbara Tettenborn +7 more
wiley +1 more source
Description of the sexual cycle related to the environment and set up of the artificial propagation in Pangasius bocourti (sauvage, 1880) and Pangasius hypophthalmus (Sauvage, 1878), reared in floating cages and in ponds in the Mekong Delta [PDF]
, 1998 First artificial propagation of Pangasius hypophthalmus was reported in Vietnam in 1980, but results did not allow extension for large scale production of fry. Otherwise, for P. bocourti, no reproduction was yet reported in 1994.
Cacot, Philippe
core
A hidden cause of infertility in hypothyroid patients [PDF]
, 2020 Methylene tetrahydrofolate reductase (MTHFR) gene mutations could be the cause of infertility in hypothyroid patients. Hence, it is worthy to screen for MTHFR gene mutations in infertile hypothyroid females and their partners if infertility persists ...
Ahmed, Soha Magdy +4 more
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