Results 41 to 50 of about 408,258 (430)
Transient activaton of β-catenin signalling in adult mouse epidermis is sufficient to induce new hair follicles but continuous activation is required to maintain hair follicle tumours [PDF]
, 2004 When β-catenin signalling is disturbed from mid-gestation onwards lineage commitment is profoundly altered in postnatal mouse epidermis. We have investigated whether adult epidermis has the capacity for β-catenin-induced lineage conversion without prior ...
Celso, Cristina Lo +2 more
core +1 more source
The physiology of follicle selection [PDF]
Reproductive Biology and Endocrinology, 2004 During the follicular phase of the primate menstrual cycle, a single follicle usually matures to the preovulatory stage and releases its oocyte for fertilization and the potential establishment of pregnancy. In assisted reproductive technology procedures, it is desirable to override the natural process of follicle selection to produce many oocytes that
openaire +4 more sources
Clinical and Experimental Reproductive Medicine, 2012 Empty follicle syndrome (EFS) is a condition in which no oocytes are retrieved after an apparently adequate ovarian response to stimulation and meticulous follicular aspiration. EFS can be classified into 'genuine' and 'false' types according to hCG levels. It is a rare condition of obscure etiology. The existence of genuine EFS has been questioned and
Jee Hyun Kim +2 more
openaire +3 more sources
Gonadotrophic control of follicle growth in the ewe.
Journal of reproduction and fertility. Supplement, 2019 Preovulatory follicle growth in the ewe is dependent on FSH although no precise relationship appears to exist between plasma concentrations of FSH and the number of preovulatory follicles which develop or ovulation rate. This may be related to a hitherto
A. S. McNeilly +3 more
semanticscholar +1 more source
Leptin receptor in the chicken ovary: potential involvement in ovarian dysfunction of ad libitum-fed broiler breeder hens [PDF]
, 2004 In hens, the ovarian follicles committed to ovulation are arranged in an ordered follicular hierarchy. In standard broiler breeders hens genetically selected for high growth rate the reproductive function is clearly dysfunctional.
Cassy, Sandrine +5 more
core +3 more sources
Prolactin delays hair regrowth in mice [PDF]
, 2006 Mammalian hair growth is cyclic, with hair-producing follicles alternating between active (anagen) and quiescent (telogen) phases. The timing of hair cycles is advanced in prolactin receptor (PRLR) knockout mice, suggesting that prolactin has a role in ...
Ashby, M.G. +6 more
core +2 more sources
Pesquisa 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
Bioengineering the Hair Follicle [PDF]
Organogenesis, 2007 The hair follicle develops from the primitive embryonic epidermis as a result of complex epithelial-mesenchymal interactions. The full follicle, consisting of epithelial cylinders under control of a proximal lying mesenchymal papilla, grows in cycles giving rise to a new hair shaft during each cycle.
T. Barrows +5 more
openaire +3 more sources
The Journal of Reproduction and Development, 2022 This study aimed to test the hypothesis that short-term supplementation with a high-energy diet promotes embryo production following ovum pick-up (OPU) in Japanese Black cows.
Kensuke TOMITA +3 more
doaj +1 more source
The Journal of Reproduction and Development, 2023 Insulin-like growth factor-1 (IGF-1) plays a crucial role in follicular growth and stimulates steroid hormone production in bovine follicles. Steroid hormones are synthesized through the actions of steroidogenic enzymes, specifically STAR, CYP11A1, HSD3B,
Ahmad Farid RAWAN +5 more
doaj +1 more source