Results 41 to 50 of about 290,530 (261)

High-Definition Optical Coherence Tomography for the in vivo Detection of Demodex Mites [PDF]

open access: yes, 2012
Background: Demodex mites are involved in different skin diseases and are commonly detected by skin scrape tests or superficial biopsies. A new high-definition optical coherence tomography (HD-OCT) with high lateral and axial resolution in a horizontal ...
Askin U   +15 more
core   +1 more source

Bioengineering the Hair Follicle [PDF]

open access: yesOrganogenesis, 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

Effect of FSH on testicular morphology and spermatogenesis in gonadotrophin-deficient hypogonadal mice lacking androgen receptors [PDF]

open access: yes, 2010
Follicle stimulating hormone (FSH) and androgen act to stimulate and maintain spermatogenesis. FSH acts directly on the Sertoli cells to stimulate germ cell number and acts indirectly to increase androgen production by the Leydig cells.
Abel, M.H.   +4 more
core   +2 more sources

The effect of activated silicon dioxide and betaine supplementation on quails' growth and productivity [PDF]

open access: yesVeterinary World, 2021
Background and Aim: Silicon dioxide and betaine supplements are essential in the poultry diet to improve growth and laying performance. This study aimed to determine the effect of activated silicon dioxide (ASD) and betaine supplementation on quails ...
Adi Ratriyanto   +2 more
doaj   +1 more source

Steroid profile of porcine follicular fluid and blood serum: Relation with follicular development

open access: yesPhysiological Reports, 2019
The aim of this study was to identify follicular fluid (FF) steroids which reflect follicular development in the early stages of the follicular phase and to establish whether the levels of these FF steroids correspond to their levels in serum.
Natasja G. J. Costermans   +6 more
doaj   +1 more source

Effects of insulin-like growth factor-1 on the mRNA expression of estradiol receptors, steroidogenic enzymes, and steroid production in bovine follicles

open access: yesThe 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

Structure of the ovaries of the Nimba otter shrew, Micropotamogale lamottei, and the Madagascar hedgehog tenrec, Echinops telfairi [PDF]

open access: yes, 2005
The otter shrews are members of the subfamily Potamogalinae within the family Tenrecidae. No description of the ovaries of any member of this subfamily has been published previously.
A.C. Enders   +18 more
core   +1 more source

Stimulation of ZPC Production by Follicle-Stimulating Hormone in the Granulosa Cells of Japanese Quail (Coturnix Japonica)

open access: yesThe Journal of Poultry Science, 2003
Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. Previous studies have indicated that one of the components, a glycoprotein homologous to mammalian ZPC, is produced and ...
Jianzhi Pan   +2 more
doaj   +1 more source

Expression of Relaxin 3 in the Ovarian Follicle of Japanese Quail

open access: yesThe Journal of Poultry Science, 2023
The relaxin (RLN) gene is expressed in the reproductive tracts, such as the ovary and uterus, of mammalian species. Although RLN expression is detected in the chicken ovary, detailed clarification of the physiological role of RLN has not yet been ...
Khoi X. Hoang   +3 more
doaj   +1 more source

Age as A Predictor of Embryo Quality Regardless of The Quantitative Ovarian Response [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2017
Background One determining factor of a successful in vitro fertilization (IVF) cycle is embryo quality. The aim of the present study was to evaluate associations of embryo quality and reserve markers like age, FSH and AMH.
Juliano Brum. Scheffer   +5 more
doaj   +1 more source

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