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  • sperm
  • The site of storage is variable among different animal taxa and ranges from structures that appear to function solely for sperm retention, such as insect spermatheca and bird sperm storage tubules (bird anatomy), to more general regions of the reproductive tract enriched with receptors to which sperm associate before fertilization, such as the caudal portion of the cow oviduct containing sperm-associating annexins. (wikipedia.org)
  • structure of the oviduct
  • The structure of the oviduct basal body has been reconstructed from serial, oblique, and tangential sections This composite information has been used to construct a three-dimensional scale model of the organelle The walls are composed of nine equally spaced sets of three tubules, which run from base to apex pitched to the left at a 10 degrees -15 degrees angle to the longitudinal axis. (biomedsearch.com)
  • Although the structure of the oviduct has been analysed in several reptilian species using light microscopy, little ultrastructural information is available, particularly folloWing hormonal manipulation. (otago.ac.nz)
  • explants
  • Therefore, we established a culture system for equine oviduct explants that maintained epithelial morphology during 6 days of culture, as revealed by light microscopy and transmission electron microscopy. (ugent.be)
  • Signaling
  • These data demonstrate a major role for IL-1 signaling, but a limited role for the inflammasome pathway, in IL-1β secretion and development of oviduct pathology during genital chlamydial infection. (jimmunol.org)
  • We previously showed that IL-1β knockout (KO) mice develop significantly less oviduct pathology during C. muridarum infection ( 3 ), suggesting that downstream signaling by IL-1β during chlamydial infection could be the mechanistic basis for this phenotype. (jimmunol.org)
  • oviductal
  • Equine embryos remain for 6 days in the oviduct and thus there is a need for an in vitro model to study embryo-oviductal interactions in the horse, since this subtle way of communication is very difficult to analyse in vivo. (ugent.be)
  • Here we show that the oviduct regresses rapidly `from the top down' as soon as the more proximal regions have completed their function but while the distal regions still retain an oviductal egg. (biologists.org)
  • In support of this idea, Vézina and Williams ( 2003 ) found that total oviduct mass decreased by 47% immediately following ovulation of the last ovarian follicle even though an oviductal egg was still present at this point (though they did not identify which component(s) of the oviduct accounted for this decrease in mass). (biologists.org)
  • localization
  • Kang, Y.-H., West, W. L. and George, M. (1983), Ultracytochemical localization of guanylate cyclase in the oviduct of estrogen-stimulated rat. (wiley.com)
  • secretory
  • Contrary to expectation, oviducts in ovariectomised H. maculatus were fully differentiated and secretory, resembling those of naturally vitellogenic females. (otago.ac.nz)
  • proteins
  • Nuclear high-mobility-group (HMG) proteins were isolated from hen oviduct. (biochemj.org)
  • Hen oviduct proteins HMG-1 and −2 were individually isolated by HCIO4.extraction and CM-Sephadex chromatographic separation. (biochemj.org)
  • The association of proteins HMG-1 and −2 with the genome of hen oviduct nuclei was probed by a limited digestion with nucleases. (biochemj.org)
  • gene-expression
  • Oviducts were retrieved for gene-expression analyses via microarray immediately post-mortem (chicken) or at surgery (pig), 24 h after mating or genital infusion. (diva-portal.org)
  • thus
  • Thus, the avian oviduct has a highly regulated size-function relationship consistent with a high maintenance energy cost for this organ. (biologists.org)
  • infection
  • Despite increased infection, IL-1R-deficient mice had significantly reduced oviduct pathology, which was associated with decreased numbers of neutrophils, but more macrophages, in the genital tract. (jimmunol.org)
  • To investigate the role of inflammasome components during in vivo genital infection, mice lacking NLRP3, NLRC4, and ASC were tested and found to display no reduction in oviduct pathology compared with control mice. (jimmunol.org)
  • Using this model, it was shown that inflammatory cytokines induced following TLR2 stimulation are major players in development of oviduct pathology during genital C. muridarum infection ( 2 ). (jimmunol.org)
  • It involves inserting the scope into the abdomen and cutting away scar tissue which blocks the tubes and is a result of infection and/or endometriosis, primary causes for oviduct blockages. (targetwoman.com)
  • found
  • Biology Corner states that similar structures called vestigial oviducts are found in some male frogs, but they no longer provide the same function. (reference.com)
  • The oviducts found in amphibians, such as frogs, are simple tubes lined with glands that produce mucus and jelly. (reference.com)
  • The University of Virginia found the oviducts in frogs are located along the sides of the body cavity, and they appear as coiled, yellowish tubes. (reference.com)
  • function
  • We suggest that oviduct function is a significant contributor to the physiological costs of egg production and might mediate individual variation in maternal effects associated with non-yolk components of egg quality (e.g. immunoglobulins, lysozyme). (biologists.org)
  • Here, in zebra finches Taeniopygia guttata , we demonstrate that the oviduct does have a highly regulated size-function relationship. (biologists.org)
  • mouse
  • Oviduct - Atrophy in a female B6C3F1/N mouse from a chronic study. (nih.gov)
  • Oviduct - Normal in a female B6C3F1/N mouse from a subchronic study. (nih.gov)
  • Caspase-1 KO mice infected with C. muridarum exhibit less pathology in the mouse oviducts in comparison with wild-type (WT) controls ( 8 ), suggesting that activation of the cysteine protease caspase-1 is important for the development of host pathology. (jimmunol.org)
  • model
  • Aether and the University of South Australia are developing a bioprinted oviduct model to enable researchers to identify male-specific contraceptive targets that prevent the spermatozoa capacitation process from occurring. (3dmednet.com)
  • mass
  • The yolk prepared by the latter is conducted by one or more specialized ducts to the oviduct and the point of union is distinguished by the opening of a " shell-gland " which secretes a membrane around the conjoined mass of ovum and yolk. (yourdictionary.com)
  • see also Nilsson and Raberg, 2001 ), and oviduct mass was the only organ that explained variation in RMR among laying females ( Vézina and Williams, 2003 ). (biologists.org)