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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 125 for “"steroid hormones"”.
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The Effect of Steroid Hormones on Expression of the Leptin Receptors
… and women, suggesting a possible influence of steroid hormones on leptin expression and signaling pathways. Likewise, evidence suggests that leptin gene expression is regulated by steroid hormones in humans and mice. Leptin signals through a membrane receptor, <italic>Ob-R</italic>, and …
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Binding of Steroid Hormones In Vitro by Water-Insoluble Dietary Fiber
… work conducted in our laboratory has shown that steroid hormones bind to natural (e.g., brans, oat hulls) and purified (e.g., cellulose, lignin) fiber components. To explore this relationship further, we assessed the in vitro binding of estrone, estradiol-17β, and testosterone to a …
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Effect of ovarian steroid hormones on carbohydrate metabolism in skeletal muscle
Ovarian steroid hormones play an important role in the regulation of carbohydrate metabolism, particularly at the level of the skeletal muscle. This thesis examines the mechanisms involved, using the female mouse soleus muscle...
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The Regulation and Mechanism of Myelin Synthesis Involving Endogenous Steroid Hormones
… as a novel neuronal signal that may regulate steroid biosynthesis in Schwann cells and ultimately lead to the initiation of myelin synthesis.
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Effects of Certain Steroid Hormones on Growth and Feed Efficiency in Chickens
Made available in DSpace on 2014-12-05T17:47:30Z (GMT). No. of bitstreams: 1 0018130.pdf: 3603351 bytes, checksum: 2eb803fbedc78b7c6f7eff29d78682a1 (MD5) Previous issue date: 1956
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The Occurrence and Fate of Steroid Hormones from Manure Amended Agriculture Fields
Hormones are endocrine disrupting compounds, which have been shown to alter the sexual development of aquatic organisms. Animal manure applications to agricultural fields for nutrient management can be a source of environmental hormones. This dissertation investigates the occurrence of hormones in …
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The Role of Microglia in the Effects of Steroid Hormones on Brain Inflammation
… neuroprotective and anti-inflammatory effects of steroid hormones. However, our comprehension of the cellular targets and mechanisms of action of these hormones in the CNS is still unresolved. In view of these limitations, the main question addressed in this dissertation was the role that …
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Technetium-Labeled Receptor-Specific Radiopharmaceuticals: Synthesis of oxorhenium(V) Mimics of Steroid Hormones Based on the Integrated Approach
… the metal-chelate may be incorporated into a steroid-like structure. A novel amine amide thioether thiol (AATT) chelation paradigm was devised to replace the C and D rings of the steroid with a metal coordination sphere. A tetradentate oxorhenium(V) estradiol mimic was synthesized and …
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The role of thyroid and steroid hormones in maturation of the adreline-sensitive reabsorptive mechanism of the fetal lung
… of T₃ and hydrocortisone showed that these 2 hormones have a powerful synergistic effect on the absorption mechanism. Within a few hours of infusion of these 2 hormones to immature fetuses, a reabsorptive response to adrenaline similar to that normally seen in mature fetuses was observed. This …
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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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Isolation and Characterization of Novel Estrogen Binding Proteins: Physiological Implications
… estradiol and for testosterone, and these two steroid hormones modulate microtubule polymerization in an opposite manner. These findings add new information to our understanding of the non-genomic effects of steroid hormones mediated through those two novel estrogen/testosterone binding …
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The Possible Role of Extra-Gonadal Metabolism of Steroids in The Regulation of Plasma Steroid Levels (Cytochrome P-450, Liver)
The circulating level of steroid hormones is determined by both the rate of production by the steroidogenic tissue and by the rate of elimination from the circulation. The rate of metabolism of steroid hormones to more water soluble compounds can be influenced by a variety of factors including diet …
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In vivo steroid sensing using corona phase molecular recognition : design, synthesis, and applications
Steroid hormones dictate a number of underlying biochemical processes controlling human physiology and disease. Changes in steroid hormone concentration and activity are often either indicators or direct causes of disease. In the clinic, steroids are measured as biomarkers of health and have been …
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Innleiðing einnar mæliaðferðar á LC-MS/MS fyrir átján sterahormón
… the gonads and the placenta, produce and secrete steroid hormones. Cholesterol is the precursor for all steroid hormones. The human steroidogenesis can be separated into three major pathways, glucocorticoids, mineralocorticoids and finally sex steroids (adrenal androgens and estrogens). Steroid …
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Steroid Hormone and Growth Factor Regulation of Peripheral Myelination
In addition to steroid hormones, signaling by platelet-derived growth factor (PDGF)-A in peripheral myelination was investigated. Lower levels of P0 were found in the developing sciatic nerve of PDGF-A null transgenic mice, especially when active myelin synthesis occurs. Morphological deformities …
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Genetic and Sex Steroid Hormone Contributions to the Sexual Dimorphism in Murine Experimental Allergic Encephalomyelitis
… 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 the …
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Význam androgenů adrenálního původu u syndromu polycystických ovarií a hirsutismu
… adrenal cortex is the source of a wide range of steroid hormones. Mineralocorticoids, glucocorticoids and, last but not least, androgens are synthesized here. The most abundant adrenal androgen is dehydroepiandrosterone sulfate, whose androgenic potency is not high, but it forms a reservoir in …
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Development of a sample enrichment probe method for the gas chromatography-mass spectrometry analysis of hormones in water
… developed for the determination of endogenous steroid hormones (estrone, I 7P-estradiol and testosterone) in water using gas chromatography-mass spectrometry (GC-MS). SEPs constructed of thin stainless steel rods of inert material or sections of a polyimide coated megabore GC column provided at …
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Hormones and cooperative behaviours in the Damaraland mole-rat (Fukomys damarensis)
… such adjustments remain poorly understood. Steroid hormones are prominent candidates to regulate cooperative behaviours due to their ability to integrate internal physiological state and environmental stimuli to produce an adaptive behavioural response. In this thesis, I investigate the …
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Characterisation of the potentially diverse transcriptional regulatory mechanisms of human coagulation PZ gene.
… in PZ mRNA levels. Furthermore, the role of steroid hormones and inflammatory signals as potential modifiers of PZ transcription were also assessed in the HepG2 model system. This study has demonstrated, to varying degrees, the importance of tissue-specific factors (HNF4alpha), more …
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