Activity of 3β-hydroxysteroid dehydrogenase associated with progesterone production in bovine granulosa cells cultured under different concentrations of serum, insulin-like growth factor I, and gonadotropin [PDF]
, 2014 Three-β-hydroxysteroid dehydrogenase (3β-HSD) is the enzyme responsible for progesterone production. This study aimed to determine whether 3β-HSD activity can be shown to reflect progesterone production by granulosa cells cultured under different serum
Mihm Carmichael, Monika, Şimsek, Özkan
core +1 more source
Mechanical isolation of caprine preantral follicles at different reproductive stages and ovarian situation [PDF]
, 1998 O presente trabalho descreve os efeitos do estágio reprodutivo (animais impúberes, adultos não-gestantes e gestantes), posição anatômica do ovário (direito e esquerdo) presença de corpo lúteo funcional, peso do ovário e número de folículos antrais ...
Amorim, Christiani Andrade +5 more
core +1 more source
Follicular size affects the meiotic competence of in vitro matured prepubertal and adult oocytes in sheep [PDF]
, 1999 Non-atretic follicles dissected from prepubertal and adult ovaries were allocated in three groups: a) < 1 mm; b) 1-2 mm; c) > 2 mm. After 24 h of maturation, a lower percentage of adult oocytes from group a (P < 0.01) reached metaphase II than ...
Bogliolo, Luisa +3 more
core +2 more sources
Effect of Phoenix dactylifera pollen grain on maturation of preantral follicles in NMRI mice [PDF]
, 2015 Introduction: Optimizing an ideal culture system that is comparable to follicle environment to obtain mature oocytes is one of the important criteria in in vitro maturation (IVM). Phoenix dactylifera L. commonly known as date palm is an important herb in
Amini, Elaheh. +4 more
core +1 more source
Morphological and ultrastructural analysis of sheep primordial follicles preserved in 0.9% saline solution and TCM 199 [PDF]
, 2004 The objective was to determine the morphological and ultrastructural features of sheep primordial follicles preserved in either 0.9% saline solution or TCM 199 at different temperatures.
Andrade, Evelyn Rabelo +9 more
core +1 more source
The art of oocyte meiotic arrest regulation
Reproductive Biology and Endocrinology, 2019 A central dogma of mammalian reproductive biology is that the size of the primordial follicle pool represents reproductive capacity in females. The assembly of the primordial follicle starts after the primordial germ cells (PGCs)-derived oocyte releases ...
Bo Pan, Julang Li
doaj +1 more source
RFRP3 influences basal lamina degradation, cellular death, and progesterone secretion in cultured preantral ovarian follicles from the domestic cat. [PDF]
, 2019 The hypothalamic neuropeptide RFRP3 can suppress hypothalamic GnRH neuron activation and inhibit gonadotropin release from the anterior pituitary. RFRP3 is also produced locally in the ovary and can inhibit steroidogenesis and follicle development in ...
Bentley, George +2 more
core +1 more source
Effects of GnRH agonist treatment on steroidogenesis and folliculogenesis in the ovary of cyclic mice [PDF]
, 2010 Background GnRH analogs (both agonist and antagonist) have been extensively used for clinical applications, following the discovery of its direct effects on ovary. With regard to the direct actions of GnRH agonist on ovary, conflicting data are reported.
Padmasana Singh, Amitabh Krishna
core +1 more source
Italian Journal of Animal Science, 2011 In the last decade some isolation procedures were developed to obtain an increase in the number of progeny born per dam from a high number of oocytes manipulated in vitro (Telfer, 1996).
A. Giorgetti +4 more
doaj +1 more source
HeliyonBackground: Cyclophosphamide (CPA) have significant effects on ovarian follicles which lead to ovarian toxicity and impair the normal female reproductive function.
Narges Elahi +3 more
doaj +1 more source