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The influence of thyroid hormones and adrenal glands on mental function
Augustinová, Jana ; Šivicová, Gabriela (advisor) ; Špinka, Marek (referee)
This thesis focuses on effects of thyroid and adrenal hormones on mental functions, especially on cognitive functions and emotions. In the case of adrenal hormones it will also focus on stress and burnout syndrome, which are not considered as mental functions, but are connected to both psyche and the above mentioned hormones. The text is divided into two parts. The first, theoretical part deals with the anatomy and histology of these two organs, hormones that they produce and their influence on overall physical condition and pathology. The main section of this theoretical part deals with the description of influence of thyroid hormones and adrenal glands on the above mentioned mental functions. This work is based on both earlier and contemporary research, but predominantly on foreign research. In the second, empirical part, a proposal for longitudinal study of cortisol and thyroxine levels during depression treatment is presented. Klíčová slova: Hormones, thyroid glang, adrenal gland, mental functions, cognitive functions, emotions, stress, cortisol, thyroxine
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The influence of thyroid hormones and adrenal glands on mental function
Augustinová, Jana ; Šivicová, Gabriela (advisor) ; Špinka, Marek (referee)
This thesis focuses on effects of thyroid and adrenal hormones on mental functions, especially on cognitive functions and emotions. In the case of adrenal hormones it will also focus on stress and burnout syndrome, which are not considered as mental functions, but are connected to both psyche and the above mentioned hormones. The text is divided into two parts. The first, theoretical part deals with the anatomy and histology of these two organs, hormones that they produce and their influence on overall physical condition and pathology. The main section of this theoretical part deals with the description of influence of thyroid hormones and adrenal glands on the above mentioned mental functions. This work is based on both earlier and contemporary research, but predominantly on foreign research. In the second, empirical part, a proposal for longitudinal study of cortisol and thyroxine levels during depression treatment is presented. Klíčová slova: Hormones, thyroid glang, adrenal gland, mental functions, cognitive functions, emotions, stress, cortisol, thyroxine
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The thyroid gland activity of sheep
DŘÍZHALOVÁ, Blanka
In the theoretical part of my thesis, I describe the thyroid, its importance, anatomy, creation of hormones and their regulation. There is also summarized the knowledge of external environment influences on the thyroid such as nutrition, climatic conditions or seasons and internal factors influences, mainly breed, efficiency and age. The practical part is focused on the evaluation of the thyroid activity of free-range ewes and lambs in the spring and autumn of 2013. The thesis also deals with the evaluation of possible relevance between the content of thyroid hormones in the blood serum and the physiological state of the sheep. Thanks to the correlation between TSH and thyroid hormones, the proper regulation of the thyroid of ewes and lambs was confirmed. The thyroid activity was higher in the spring than in the autumn. The hypothyroidism in the autumn was not proved because no referential values of TSH are set. In the autumn there was a lower level of glucose and cholesterol in the blood of the ewes determined which gives evidence of a lower energy income from the feed in the autumn. Also the urea level which is closely connected to the energy shortage, starvation, and high income of N substances in the feed dosage was in the autumn twice as high as in the spring. There was a positive correlation determined between the higher urea concentration and the higher thyroid activity. Owing to the change of the feed content, the TSH started to stimulate the thyroid to a higher thyroid hormones production and thus to its higher activity.
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Postnatal dynamics of thyroid hormones in lambs
BURLEOVÁ, Barbora
The aim of my work was to monitor and valorize of postnatal dynamics of thyroid hormones, thyroxine (TT4), triiodothyronine (TT3) and its free fractions (FT3 and FT4), in lambs up to 60 days of age. During the experiment 26 lambs were devided into two groups according to sex and were supplemented by iodine in concentration 0,7 ? 5 mg. Standard directed day ration for sheep is average 0,3 mg of iodine in 1 kilogram of dry mass (DM). One of the groups was also supplemented by selenium in concentration 0,2 ? 0,4 mg in 1 kilogram of DM.
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Concentrations of thyroid hormones in the blood plasma of sheep
DŘÍZHALOVÁ, Blanka
The theoretical part of the thesis is dealing with description of the thyroidal hormones thyroxine, triiodthironine and their active (unbound) variants in the blood plasma. Thyroid gland, where the hormones are produced, production of very hormones and their effect on whole organism is described here. The practical part tracks and analyzes mutual relations and dynamics of thyroid hormones of sheep in their plasma depending on upraised uptake of iodine and changing uptake of selenium. The results are processed statistically.
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