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 20 of 23 for “"sex steroid hormones."”.
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Effects of the Sex Steroid Hormones and Vitamin-D3 on Calcium-Binding Protein in the Duodenum and the Shell Gland of the Chick
Made available in DSpace on 2014-12-14T16:11:18Z (GMT). No. of bitstreams: 1 7913564.pdf: 7056781 bytes, checksum: 3257f993b4e74c6ab84b5155d67983ab (MD5) Previous issue date: 1978
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Genetic and Sex Steroid Hormone Contributions to the Sexual Dimorphism in Murine Experimental Allergic Encephalomyelitis
… with susceptibility to EAE. Further, the role of sex steroid hormones and parent-of-origin effects were studied through the use of reciprocal crosses of SJL/J and BI0.S/SgMcdJ mice. We found that adult gonadal hormones selectively regulate sexually dimorphic quantitative traits observed in EAE at …
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The immediate and long-term consequences of temporary exposure during adulthood to di(2-ethylhexyl) phthalate and diisononyl phthalate on female reproduction
… structure that produces a variety of sex steroid hormones and participates in several feedback loops within the hypothalamic-pituitary-ovary axis. Further, it is the site of storage and maturation of the female gamete: the oocyte. Females are born with a finite number of oocytes in the …
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Mechanism of Bisphenol A toxicity in adult mouse ovarian antral follicles
… processes such as ovarian follicle growth and steroidogenesis. Follicles are the functional units of the ovary, responsible for ovulating an oocyte and producing sex steroid hormones during steroidogenesis. Follicles grow and develop from primordial, primary, pre-antral, and finally, to antral …
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Mechanisms by which di(2-ethylhexyl) phthalate and mono(2-ethylhexyl) phthalate disrupt ovarian folliculogenesis and steroidogenesis
… function is required for reproductive health and steroid hormone controlled non-reproductive health. Two ovarian processes that are essential for normal ovarian function are folliculogenesis and steroidogenesis. Follicles are the functional units of the ovary containing the oocyte required for …
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Fetal Biometry and Early Behavioural Development
… In addition, the possible influence of fetal sex and several maternal conditions (polycystic ovary syndrome (PCOS), hirsutism and autism) on fetal growth measurements, are explored. The biometrics include anogenital distance (AGD), several brain measurements (transcerebellar diameter (TCD), …
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The effects of adult exposure to genistein on female reproductive outcomes
… health because genistein-induced effects on the steroidogenic pathway can result in adverse, long-term effects on female fertility, cardiovascular, bone, and overall health. The ovary is an estrogen receptor-rich tissue, and plays a key role in the regulation of female fertility. This is because …
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Markers of Circadian Disruption and Reproductive Risk Factors for Breast Cancer
… of melatonin, circulating reproductive hormones and precursor gonadotropins has been well documented in animal models, particularly those of seasonal breeders, yet elucidation of these complex hormonal relationships in humans has proven challenging. This work investigates the link …
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Hormonal modulation of sex steroid hormone receptors and oncogenes in human breast cancer cells
Since sex steroids modulate breast tumor growth, and high levels of the HER-2/neu protooncogene protein may contribute to breast cancer metastasis, the effects of estrogen, progestin and hormone antagonists on the levels of estrogen receptor (ER), progesterone receptor (PR) and HER-2/neu mRNA and …
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Understanding the effects of sex chromosomes and sex hormones on sex differences
Biological factors that determine sex and drive sexual differentiation have long been established in humans and other mammalian species. Yet there is a limited understanding of the mechanisms by which these factors give rise to sex-biased outcomes in health and disease. Growing evidence for sex …
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Impact of endotoxemia on ovarian signaling and function
… organ responsible for producing gametes and sex steroid hormones. There are many stages throughout the estrous cycle at which perturbations could affect quality of the oocyte. Heat stress (HS) is detrimental to fertility, and swine are inherently susceptible due to lack of functional sweat …
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Understanding female social dominance: comparative behavioral endocrinology in the Genus Eulemur
… female dominance in lemurs, I observed mixed‐sex pairs of related Eulemur species, and identified two key study groups ‐‐ one comprised of species expressing female dominance and, the other comprised of species (from a recently evolved clade) showing equal status between the sexes (hereafter …
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Effects of methoxychlor and its metabolites on mouse antral follicles
… production, follicle maturation and synthesis of sex steroid hormones including estrogens. Throughout the lifetime of a female, normal levels of estrogen are critical for the proper development and functioning of the ovaries. An alteration in the levels of estrogen can result in impaired …
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The transgenerational effects of Di(2-ethylhexyl) phthalate on female reproduction in mice
… The primary roles of the ovary are to produce sex steroid hormones and maintain a steady stream of growing follicles. Normal sex steroid hormone production by the mature follicles is essential for the maintenance of normal menstrual/estrous cyclicity, reproductive tract tissues, and …
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Sex Determination And Differentiation In The Common Snapping Turtle - A Reptile With Temperature-Dependent Sex Determination
<p>Temperature-dependent sex determination (TSD) was first discovered in an African lizard over 40 years ago. TSD has since been shown to be exhibited by many vertebrates including some fish and amphibians, numerous lizards, turtles, and all crocodilians studied to date. Although numerous questions …
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Obesity and Aggressive Prostate Cancer: Bias and Biology
… with altered circulating levels of metabolic and sex steroid hormones involved in prostate development as well as oncogenesis. However, the current observational evidence linking obesity to aggressive PC is inconsistent or conflicting, and there is growing concern that much of the heterogeneity …
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The Association Between Sex Hormone Binding Globulin And C-Reactive Protein Levels in Premenopausal Women
… remains regarding the effect of female sex hormones on the immune system and inflammation process. Sex Hormone Binding Globulin (SHBG) modulates the relative effects of estrogen and testosterone, specifically promoting estrogen effects systemically. Furthermore, estrogen enhances the …
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Sveikų reproduktyvaus amžiaus moterų reakcija į emocijas sukeliančius vaizdus: subjektyvaus vertinimo, centrinės ir autonominės nervų sistemos atsako tyrimai /
… images based on the levels of healthy women‘s sex steroid hormone and to compare the responses of central and autonomic nervous system. The present dissertation is based on carried out three studies. Based on the results of the first study, it concluded that International Affective Picture …
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Women's of healthy and reproductive age reaction to affective images: researches on subjective evaluations, central and autonomic nervous system /
… images based on the levels of healthy women‘s sex steroid hormone and to compare the responses of central and autonomic nervous system. The present dissertation is based on carried out three studies. Based on the results of the first study, it concluded that International Affective Picture …
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Natural Reproductive Cycle of Northern Largemouth Bass in the Upper Midwest, with Applications to Off-season Spawning
… using data loggers. Monthly trends in plasma sex steroid hormones [testosterone (T), 11-keto-testosterone (11-KT), and estradiol—17β (E2)] and vitellogenin (Vtg), in addition to gamete development and organosomatic indices, were related to temporal water temperature and photoperiod patterns. …
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