Results 311 to 320 of about 68,636 (335)
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Journal of Equine Veterinary Science, 2000
In past studies, University of California, Davis researchers found that the sperm population that reaches the oviducts has a signifcanfly greater percentage of structurally normal sperm than the sperm population in the semen. This finding suggests that selection for normal sperm occurs during sperm transport to the oviduct.
Irwin K. M. Liu, Mary A. Scott
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In past studies, University of California, Davis researchers found that the sperm population that reaches the oviducts has a signifcanfly greater percentage of structurally normal sperm than the sperm population in the semen. This finding suggests that selection for normal sperm occurs during sperm transport to the oviduct.
Irwin K. M. Liu, Mary A. Scott
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Identification of Telocytes in the Oviduct of the Mare
Theriogenology, 2023Telocytes (TCs), a recently discovered special type of stromal cells, have been identified in many organs of many species, including the female and male reproductive system, with proposed multiple potential bio-functions such as homeostasis, immunomodulation, tissue remodeling and regeneration, embryogenesis, angiogenesis and even tumorigenesis.
V, Etcharren +2 more
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Molecular Reproduction and Development, 2019
We have recently shown that the conditioned media from bovine oviductal epithelial cell culture suppress sperm phagocytosis by neutrophils, suggesting that the oviduct around oestrus supplies the anti‐inflammatory microenvironment.
M. Yousef +3 more
semanticscholar +1 more source
We have recently shown that the conditioned media from bovine oviductal epithelial cell culture suppress sperm phagocytosis by neutrophils, suggesting that the oviduct around oestrus supplies the anti‐inflammatory microenvironment.
M. Yousef +3 more
semanticscholar +1 more source
Boar spermatozoa in the oviduct
Theriogenology, 2005In the pig, a functional tubal sperm reservoir (SR) is established before ovulation to ensure availability of suitable numbers of viable spermatozoa for fertilization. The boar's large ejaculate is split: most spermatozoa are delivered in a sperm-rich fraction (SRF) followed by a post-SRF fraction containing increasing amounts of the spermadhesin PSP-I/
Emilio A. Martinez +9 more
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Regulation of egg formation in the oviduct of laying hen
Worlds Poultry Science Journal, 2018In the adult hen, the oviduct receives the ovum from the ovary and provides the biological environment for the formation and potential fertilisation of the egg.
Nirvay Sah, Birendra Mishra
semanticscholar +1 more source
Co‐culture, oviduct secretion and the function of oviduct‐specific glycoproteins.
Cell Biology International, 1994AbstractCo‐cultures of embryos with somatic cells, usually in the form of monolayers, or conditioned medium from these somatic cells, results in development past the early stage blocks and the formation of hatched blastocysts. Optimum rates of development are not achieved, however, and the task is to investigate components of the oviduct that are ...
C.D. Nancarrow, Julia L. Hill
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World's Poultry Science Journal, 2002
The unilateral avian oviduct is divisible into five functional regions which, moving distally, include the infundibulum, magnum, isthmus, tubular shell gland and shell gland pouch.
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The unilateral avian oviduct is divisible into five functional regions which, moving distally, include the infundibulum, magnum, isthmus, tubular shell gland and shell gland pouch.
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The mammalian oviduct: biochemistry and physiology
European Journal of Obstetrics & Gynecology and Reproductive Biology, 1997Oviduct fluid and oviduct epithelium seem able to modulate in-time maturation and transport of gametes and embryos. They probably allow selection of spermatozoa through too early activation. Subtle changes in the composition of tubal secretion permit fertilization and embryo development in the best conditions. The mechanisms of these changes of oviduct
Yves Menezo, P. Guérin, P. Guérin
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Modulation of The Oviductal Environment by Gametes
Journal of Proteome Research, 2007The notion of a gamete recognition system that alerts females to the presence of gametes in their reproductive tract profoundly influences our understanding of the physiology of events leading to conception and the bearing of offspring. Here, we show that the female responds to gametes within her tract by modulating the environment in which pregnancy ...
Georgiou AS +9 more
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CILIARY ACTIVITY IN THE HUMAN OVIDUCT
BJOG: An International Journal of Obstetrics & Gynaecology, 1977SummaryCiliary activity of the human oviduct was investigated using a cinematographic technique. Oviducts from preovulatory, postovulatory and puerperal subjects were analyzed and the fimbrial, ampullary and isthmic regions were compared. It was found that cilia beat more rapidly after ovulation, this difference being significant in both ampullary and ...
K. J. Dennis, Frances N. Critoph
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