Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"male reproductive tract"”.
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Estrogen Receptors and Estrogen-Regulated Genes in the Male Reproductive Tract
… receptor-alpha (ERalpha) is essential for male fertility. The bisexual role and importance of estrogen in reproduction was established by the previous studies. However, there is considerable variation, both within and between species, in reports of nuclear steroid receptor localizations in …
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A Functional Role of Estrogen in the Efferent Ductules of the Male Reproductive Tract
… of estrogen in the efferent ductules (ED) of the male mouse reproductive tract at various biological levels. In spite of knowing the presence of high concentrations of estrogen and the existence of estrogen receptor (ER), ERalpha and ERbeta, in the male reproductive tract, a role for estrogen in …
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Antiandrogens and Development of the Male Rat Reproductive Tract
… thesis were to investigate the development of male reproductive tract malformations secondary to in utero DBP exposure from the fetus to the adult, to characterize the effects of DBP on fetal testicular gene expression for the steroidogenic enzymes, and to further explore DBP's potential for …
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Function and evolution of seminal fluid components in Drosophila
… seminal fluid proteins (SFPs) secreted by the male reproductive tract are transferred to females during mating and induce profound female post-mating behavioral and physiological shifts. Many SFPs work in concert with female-derived molecules to promote fertility. However, reproductive fluids …
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Male Subfertility and Prostate Cancer Risk: Epidemiological and Genetic Studies
Androgen action plays a pivotal role in male reproductive tract physiology and pathology. The androgen receptor (AR) gene harbors two codon repeat tracts: the CAG and GGN repeats, encoding corresponding amino acid sequences of variable length; the polyglutamine and polyglycine stretches, …
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Genetic Regulation of Müllerian Duct Regression
… humans, develop progenitor tissues for both male and female reproductive tract organs before they fully differentiate into a male or female tract. The progenitor tissue for the male reproductive tract is known as the Wolffian duct (WD), and the progenitor tissue for the female reproductive …
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Identification of seminal proteins related to fertility of bulls
… likely are key players in protecting sperm and male reproductive tract tissues from enzymatic hydrolysis. The proteins identified in this dissertation represent novel additions to the previously described seminal heparin binding protein families. Clearly, these data indicate a growing complexity …
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Beta-Catenin and Development of the Urogenital System
… is composed of the kidneys, gonads, urinary and reproductive tracts. Components of the urogenital system play many important roles in the body; kidneys function by regulating the body's fluid volume, acidity and mineral composition, while the reproductive tract is necessary for propagation of our …
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Localization of P450 aromatase in sperm and estrogen receptors in the epididymal region of the rooster
… The presence of estrogen receptors (ER) in the male reproductive tract suggests that estrogen may be important for epididymal functions. This investigation was undertaken to test the hypothesis that estrogen has a role in the regulation of the male reproductive system of the rooster. Specific …
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Characterization of the Epididymal Region of the Rooster
… efferent ductules and epididymal duct) of the male reproductive tract is essential for the production of fertile sperm. Two diseases or dysfunctions of avian efferent ductules resulting in decreased fertility have been reported. Efferent ductules comprise the largest part of the epididymal …
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The roles of the retinoic acid receptors in growth, differentiation and development.
… due to expression of the mutant RAR in the male reproductive tract these mice were infertile. My data suggests that the infertility arises due to a block in vas deferens caused by excessive production of seminal fluids. In the last part of this thesis I analyzed a novel mechanism by which I …
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Estrogen Receptor-Mediated Gene Expression in Cultured Epithelial Cells of Rat Efferent Ductules
… However, knowledge of estrogen effects in the male reproductive tract is limited. In some species, concentrations of estrogens in testicular fluid are higher than in blood. A recent study in estrogen receptor knockout mice also showed an obvious morphological change in the efferent ductules. …
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MORPHOLOGICAL FEATURES OF THE REPRODUCTIVE ORGANS IN DOMESTIC SPECIES IN RELATION TO WATER MOVEMENT CONTROL, HYPONUTRITION AND ENVIRONMENTAL INFLUENCES IN FETAL AND PREPUBERTAL LIFE, AND METABOLISM REGULATOR FACTORS.
… the uterine environment is important in every reproductive moment of a female mammal life. Rapid transcellular water movements are facilitated by AQPs that increase plasma membrane permeability. The results from my research showed that AQP-mediated water movement between the intraluminal, …