Corticosterone Hormone
Mostrando 13-24 de 87 artigos, teses e dissertações.
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13. Social condition affects hormone secretion and exploratory behavior in rats
Studies of behavior, endocrinology and physiology have described experiments in which animals housed in groups or in isolation were normally tested individually. The isolation of the animal from its group for testing is perhaps the most common situation used today in experimental procedures, i.e., there is no consideration of the acute stress which occurs wh
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-06
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14. Biosynthesis and metabolism of steroid hormones by human adrenal carcinomas
Over a 15-year period, our university-based laboratory obtained 125 adrenal tumors, of which 15 (12%) were adrenal cortical carcinomas. Of these, 6 (40% of the carcinomas) occurred in patients with clear clinical manifestations of steroid hormone excess. Adrenal cortical carcinoma cells derived from the surgically resected tumors in 4 of these patients were
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-10
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15. Resposta imune em ratos com encefalomielite alergica experimental aguda tratados com a substancia P
Substance P centrally injected (ICV) in rats acts on the autonomic nervous system and the hypotha1amic-pituitary-adrenal axis (HPA) to moduJate innate llmnune function and iDf1ammatory response in autoimmune diseases. The effects of modulation in migration and in natural killer cell activity of splenocytes in these systems were studied in experimental allerg
Publicado em: 2000
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16. Influencia da lesão da area septal do cerebro de ratos sobre os linfocitos T (CD4+ e CD8+) do baço e efeitos sistemicos induzidos pelo tumor Walker 256
Some studies have shown the influence of limbie-hypothalamie areas on the immune response modulation. Concerning the septal nueleus, the whole lesion of this limbie area impaired the humoral immune response of rats immunized with sheep red blood eells, while lesions of the medial septal nueleus produced a long lasting inhibition of T Iymphoeyt proliferation
Publicado em: 2000
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17. Influencia do ciclo estral sobre as respostas hormonais de ratas submetidas a estresse
Right atria isolated from female rats submitted to three footshoek or swimming sessions showed changes on sensitivity to eateeholamines, when the stress sessions were applied during estrus, metestrus and diestrus (Diestrus Group), without changes when they were applied at diestrus, proestrus and estrus (Estrus Group). The aim of this work was to analyse the
Publicado em: 1998
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18. Abnormal regulation of adenosine 3′,5′-monophosphate and corticosterone formation in an adrenocortical carcinoma
A spontaneously occurring rat adrenocortical carcinoma which produces corticosterone was maintained by transplantation. The carcinoma appeared to utilize corticosterone biosynthetic steps similar to those of the normal adrenal, but the tumor produced only about 1-10% as much corticosterone per unit tissue weight as nontumorous adrenal glands. The tumor demon
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19. Corticosterone differentially regulates the expression of Gs alpha and Gi alpha messenger RNA and protein in rat cerebral cortex.
The possibility that glucocorticoids regulate specific guanine nucleotide binding regulatory proteins (G proteins) was investigated in rat cerebral cortex. Corticosterone was administered to normal and bilaterally adrenalectomized rats, and hormone regulation of individual G-protein subunits was investigated in cerebral cortex in three ways: (i) immunoblot a
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20. Prenatal onset and maternal modifications of the circadian rhythm of plasma corticosterone in blind infantile rats.
1. In order to clarify the manner in which maternal nursing modifies the circadian rhythm of plasma corticosterone in blind pups, specified schedules of maternal nursing were imposed on blind pups and the hormone rhythm was followed individually. 2. Two groups of blinded pups were continuously nursed, alternately by two mother rats having different circadian
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21. TREATMENT OF ADDISON'S DISEASE WITH DESOXY-CORTICOSTERONE ACETATE, A SYNTHETIC ADRENAL CORTICAL HORMONE (PRELIMINARY REPORT) 1
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22. Studies on the role of protein synthesis in the regulation of corticosterone production by adrenocorticotropic hormone in vivo.
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23. A Facilitative Role for Corticosterone in the Acquisition of a Spatial Task Under Moderate Stress
Emotionally charged experiences alter memory storage via the activation of hormonal systems. Previously, we have shown that compared with rats trained for a massed spatial learning task in the water maze in warm water (25°C), animals that were trained in cold water (19°C) performed better and showed higher levels of the stress hormone corticosterone. Here,
Cold Spring Harbor Laboratory Press.
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24. Disengaging insulin from corticosterone: roles of each on energy intake and disposition
Corticosterone and insulin play complex roles in the amount and composition of calories ingested, and the utilization and deposition of this energy. Understanding the interplay of these two hormones is complicated because increasing concentrations of corticosterone dose-dependently increase circulating insulin levels. We addressed individual contributions of
American Physiological Society.