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 39 for “"THYROID FUNCTION"”.
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Prenatal and postnatal development of thyroid function in the bovine
Thesis (M.S.)--Michigan State University. Dept. of Physiology, 1971
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Changes in Thyroid Function Associated With Pregnancy in Golden Hamsters
… were calculated to determine the changes in thyroid function during pregnancy in the hamster, (Mesocricetus auratus). Turnover rates were calculated via the plasma disappearance technique using ¹²⁵I-labeled hormones. Serum T₄ and T₃ were measured by RIA. Measurements were made before …
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Central disorders of thyroid function: clinical, radiological and genetic phenotyping
… have been great advances in the field of central thyroid disorders. However, despite important developments, such as the introduction of ultrasensitive TSH assays and improvements in pituitary imaging studies, diagnosing and uncovering the aetiology of both central hyper- and hypo-thyroidism …
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Polychlorinated biphenyl effects on avian hepatic enzyme induction and thyroid function
Polychlorinated biphenyls (PCBs) decrease thyroid function in rats and mice by inducing activity of a liver enzyme, uridine diphosphate-glucuronosyltransferase (UDP-GT), thereby increasing thyroxine (T4) clearance. This loss of T4 can lead to hypothyroidism. In this study, an assay was validated …
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PITUITARY-THYROID FUNCTION IN THE C57 BL/KSJ DB/DB DIABETIC MOUSE.
… mellitus (NIDDM). This study reports a dysfunction in the pituitary-thyroid axis and apparent peripheral resistence to thyroid hormones due to a reduction in T3 receptor binding. Diabetic mice have subnormal serum T4 concentrations and supranormal T3 concentrations which are most pronounced …
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The Effects of Anesthesia and Surgery on Thyroid Function Tests in Dogs
Background: Many non-thyroidal factors affect thyroid function tests. Anesthesia and surgery have been documented to affect thyroid function tests in humans but have not been extensively studied in dogs. Hypothesis: Anesthesia alone and anesthesia combined with surgery will affect thyroid function …
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Comparative thyroid function in developing and adult precocial Japanese quail and altricial Ring doves
… development of thyrotropin (TSH) influence on thyroid hormone (TH) content in the thyroid gland (TG) and the serum, and on TG-cAMP content. In embryos, pituitary gland (PG)-TSH content was measured by an avian bioassay system. Adult quail and doves were studied for comparability of thyroid …
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The effects of different iodine availabilities on thyroid function during development in Japanese quail
… of different egg iodine (I) availabilities on thyroid function during development. Low (≤50 μgI/kg feed in the maternal diet) and high (1200 μgl/kg feed) I availability were compared to control levels (800 μgI/kg feed). Thyroid gland (TG) content of I, triiodothyronine (T3), and thyroxine (T4), …
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The laboratory assessment of thyroid function with special reference to the importance of thyroid abnormality in psychiatric disease
… the incidence and clinical importance of thyroid abnormalities in an acute psychiatric population and to use such information in the development of a laboratory diagnostic policy for the investigation of such groups. This involved the use of established in vitro assays for serum thyroxine …
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Effects of ammonium perchlorate exposure on the thyroid function and the expression of thyroid-responsive genes in Japanese quail embryos and post hatch chicks
Perchlorate ion interferes with thyroid function by competitively inhibiting the sodium-iodide symporter, thus blocking iodide uptake into the thyroid gland. In this study, the effect of perchlorate exposure on thyroid function and thyroid-responsive gene expression were examined in (1) embryos …
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Effects of Levothyroxine Adminstration and Withdrawal on the Hypothalamic-Pituitary-Thyroid Axis in Euthyroid Dogs
… of the vague clinical signs and limitations of thyroid function tests, misdiagnosis of hypothyroidism in dogs is common and leads to inappropriate treatment with levothyroxine. Chronic supplementation can suppress the hypothalamic-pituitary-thyroid axis (HPTA) and make it difficult to assess …
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The effects of induced hypothyroidism on the glucocorticoid stress response in Japanese quail (Coturnix japonica)
Many aspects of biological function are affected by hormones, from physiology to behavior, and the synthesis and release of hormones in vertebrates are regulated by the endocrine axes of control. A growing body of research shows that the mechanisms underlying the endocrine axes of control are …
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PCB Effects on Brain Type II 5'Deiodinase Activity in Developing Brids
PCBs are known to cause thyroid disruption in laboratory rats and are thought to be the causal agent in thyroid gland alterations in herring gulls in the Great Lakes. This study examined the regulation of thyroid hormone supply during development in (1) domestic chicken embryos (Gallus domesticus) …
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NICOTINE MODULATION OF THYROID HORMONE SIGNALING AND ITS CONTRIBUTION TO COGNITION
… on health, including disruptions to endocrine function. Thyroid hormones may specifically be affected by nicotine exposure through cigarette smoke. The present work begins with a thorough analysis of the literature on thyroid hormones, their contribution to cognition and synaptic plasticity as …
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The Relationship Between Thyroid Hormones and Essential minerals by Hair Mineral Analysis.
BACKGROUND: Thyroid disease is a common entity, for which a serological diagnosis is made at the present. A serological test is useful in making a diagnosis of thyroid disease in cases in which a disease is present, although it reveals the limitations in those in which only the symptoms are …
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Evaluation of the effects of clomipramine on the canine hypothalamic-pituitary-thyroid axis
… antidepressants have been shown to alter thyroid function in man and laboratory animals, but have not been evaluated in the dog. The effect of administration of clomipramine on canine thyroid function was studied in a prospective protocol in which 14 mature, healthy dogs were administered …
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