Catecholamines
Mostrando 13-24 de 546 artigos, teses e dissertações.
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13. Exercício aeróbico regular restaura os níveis de catecolaminas em glândulas supra-renais de ratos com hiperfenilalaninemia
Fenilcetonúria é caracterizada pela deficiência da enzima fenilalanina hidroxilase, causando acúmulo de fenilalanina, o que acaba por provocar distúrbios no sistema nervoso central. Diagnóstico precoce e subordinação à dieta hipoprotéica evita as alterações decorrentes. Porém, não aderir estritamente a essa dieta leva à diminuição da concent
Publicado em: 2011
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14. Glucocorticoids, master modulators of the thymic catecholaminergic system?
There is evidence that the major mediators of stress, i.e., catecholamines and glucocorticoids, play an important role in modulating thymopoiesis and consequently immune responses. Furthermore, there are data suggesting that glucocorticoids influence catecholamine action. Therefore, to assess the putative relevance of glucocorticoid-catecholamine interplay i
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-03
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15. Neurohumoral, immunoinflammatory and cardiovascular profile of patients with severe tetanus : a prospective study
Introduction: Autonomic disturbances in tetanus are traditionally associated with adrenergic variations and/or cardiac dysfunction, based on case report data. The objective of this study was to measure catecholamines, (TNF)-α and troponin T relative to and left ventricular ejection fraction (LVEF) in patients with severe tetanus. Methods: This prospective s
Publicado em: 2010
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16. Monoamines in the pedal plexus of the land snail Megalobulimus oblongus (Gastropoda, Pulmonata)
In molluscs, the number of peripheral neurons far exceeds those found in the central nervous system. Although previous studies on the morphology of the peripheral nervous system exist, details of its organization remain unknown. Moreover, the foot of the terrestrial species has been studied less than that of the aquatic species. As this knowledge is essentia
Publicado em: 2010
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17. Efeitos da atividade física sobre a atenção sustentada de crianças portadoras do Transtorno de Déficit de Atenção e Hiperatividade. / Physical activity and attenction in children with Attenction deficit disorder.
Attention deficit hyperactivity disorder (ADHD) is related to a deficiency of central catecholamines (CA) in cognitive, biochemical, and physical tests, and pharmaceutical intervention may have no effect if it is not accompanied by changes in the environment. The objective of our study was to test the hypothesis that central CA are responsible for the increa
Publicado em: 2010
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18. Ação modulatória do glutamato sobre o sistema catecolaminérgico em cultura de células do bulbo de ratos neonatos / Modulatory action of glutamate over the catecholaminergic system in cell culture of the medulla oblongata of newborn rats
Encontramos no bulbo diversos núcleos, assim como diversos neurotransmissores, relacionados com a manutenção da pressão arterial. Dentre os núcleos, o núcleo do trato solitário se destaca por ser um dos principais moduladores do sistema nervoso autônomo, sendo o primeiro a receber aferências dos barorreceptores e encaminhá-los para diversos outros
Publicado em: 2010
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19. Catechol-O-methyltransferase and TMD in women / Polimorfismo genetico da Catecolamina-0-Metiltransferase (Val 158Met) e disfunção temporomandibular em mulheres
Pain is a complex experience encompassing behavioral, environmental, and genetics factors. Temporomandibular Disorders (TMD) are a musculoskeletal condition considered to have multifactorial etiology comprising local, systemic and genetic factors, which makes individuals respond differently to the development and progression of the disease. Thus, intrinsic g
Publicado em: 2010
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20. Pheochromocytoma: a long-term follow-up of 24 patients undergoing laparoscopic adrenalectomy
Purpose: Pheochromocytomas are tumors derived from chromaffin cells that often secrete catecholamines and cause hypertension. The clinical diagnosis of pheochromocytoma depends on the presence of excessive production of catecholamines. Conventional imaging modalities that have been used in the preoperative evaluation include CT, MRI, and 131I-MIBG scintigrap
International braz j urol. Publicado em: 2009-02
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21. Polymorphism of the catechol-O-methyltransferase gene in Han Chinese patients with psoriasis vulgaris
Psoriasis vulgaris is defined by a series of linked cellular changes in the skin: hyperplasia of epidermal keratinocytes, vascular hyperplasia and ectasia, and infiltration of T lymphocytes, neutrophils and other types of leukocytes in the affected skin. Catechol-O-methyltransferase ( COMT ) 158 polymorphism can reduce the activity of the COMT enzyme that
Genetics and Molecular Biology. Publicado em: 10/01/2009
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22. The inhibitory role of sympathetic nervous system in the Ca2+-dependent proteolysis of skeletal muscle
Mammalian cells contain several proteolytic systems to carry out the degradative processes and complex regulatory mechanisms to prevent excessive protein breakdown. Among these systems, the Ca2+-activated proteolytic system involves the cysteine proteases denoted calpains, and their inhibitor, calpastatin. Despite the rapid progress in molecular research on
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-01
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23. Efeitos do estresse pré-natal sobre a atividade de linfócitos de uma prole de camundongos / Effects of prenatal stress on the lymphocytes mice litter activity
As a consequence of his fast development, the fetus is vulnerable to modifications from the hormonal maternal millieu. This is explained mainly by the permeability of the placentary barrier to several hormones and substances. Specifically, it is known that the maternal exposition to a stressor activates neuroendocrine systems (exponents, the hypothalamus-pit
Publicado em: 2009
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24. Regulation of the the rat pineal gland hormonal production by modulators of the inflammatory process / Regulação da produção hormonal da glândula pineal de ratos por moduladores do processo inflamatório
The melatonin, synthetized by the pineal gland, exihibits a number of regulatory activities on the internal dynamic homeostasis of mammals. These functions are related to the regulation of endogenous circadian and seasonal rhythms during healthy and physiopathological processes. This study evaluates the effects of the inflammatory modulators, corticosterone,
Publicado em: 2009