2 Adrenal Gland
Mostrando 25-36 de 121 artigos, teses e dissertações.
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25. Regulation of cholesterol synthesis in rat adrenal gland through coordinate control of 3-hydroxy-3-methylglutaryl coenzyme A synthase and reductase activities.
The activities of cytosolic 3-hydroxy-3-methylglutaryl coenzyme A synthase [3-hydroxy-3-methylglutaryl-CoA acetoacetyl-CoA-lyase (CoA-acylating), EC 4.1.3.5] and microsomal 3-hydroxy-3-methylglutaryl coenzyme A reductase[mevalonate:NADP+ oxidoreductase (CoA-acylating), EC 1.1.1.34], two sequential enzymes in the cholesterol biosynthetic pathway, were shown t
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26. Adrenal responses to corticotrophin-releasing factor in conscious hypophysectomized calves.
1. Adrenal responses to intra-aortic infusions of pure synthetic ovine corticotrophin-releasing factor (CRF) have been investigated in functionally hypophysectomized calves previously fitted with an adrenal clamp. 2. CRF caused an increase in the output of cortisol from the adrenal gland, which was dose related over the range 4-8 pmol min-1 and maximal at th
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27. Sensory fibres modulate histamine-induced catecholamine secretion from the rat adrenal medulla and sympathetic nerves.
1. We have studied the mechanism of catecholamine secretion induced by histamine from the adrenal medulla and sympathetic noradrenergic neurones in the rat, and the role of capsaicin-sensitive sensory nerves in this secretion. 2. Histamine at a dose of 1 mg/kg induced adrenaline and noradrenaline secretion by a non-neurogenic mechanism. In contrast, at a dos
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28. Adrenal responses to splanchnic nerve stimulation in conscious calves given naloxone.
1. The effects of stimulating the peripheral end of the right splanchnic nerve in the presence of naloxone (2 mg kg-1) have been investigated in conscious 3 to 6-week-old calves. 2. Mean aortic blood pressure rose to significantly higher levels during splanchnic stimulation in bursts at 40 Hz for 1 s at 10 s intervals than it did during stimulation at the co
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29. Expression of the DBA/2J Ren-2 gene in the adrenal gland of transgenic mice
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30. The role of corticotrophin releasing factor in relation to the neural control of adrenal function in conscious calves.
1. Adrenal responses to intra-aortic infusions of pure synthetic ovine corticotrophin releasing factor (CRF), and to electrical stimulation of the preganglionic sympathetic innervation, have been investigated in functionally hypophysectomized conscious calves, in the presence and absence of a specific CRF antagonist. 2. CRF exerted a substantial steroidogeni
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31. Release of adrenocorticotrophin from the adrenal gland in the conscious calf.
1. The effect of stimulation of the splanchnic nerve on the output of ACTH-related peptides from the adrenal gland has been investigated in conscious, functionally hypophysectomized calves, previously fitted with an 'adrenal clamp'. 2. Stimulation of the splanchnic nerve elicited a small, but statistically significant, increase in the output of ACTH-like imm
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32. The adrenal contribution to the neuroendocrine responses to splanchnic nerve stimulation in conscious calves.
1. The extent to which the adrenal gland contributes to neuroendocrine responses to electrical stimulation of the peripheral end of the splanchnic nerve has been investigated in conscious calves in which the right nerve was stimulated either at 4 Hz continuously for 10 min or at 40 Hz in 1 s bursts at 10 s intervals for the same period. 2. It was confirmed t
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33. The adrenal gland of Euproctus (Urodela, Salamandridae): comparison of three species and phylogenetic inferences.
Adrenal glands of three species of Euproctus (E. asper, E. montanus and E. platycephalus) were compared. Differences were observed as regards: (1) the distribution of the adrenal tissue, which is more sparse in E. asper than in the other two species; (2) the amount and size of the adrenal islets: in E. asper, they are numerous and small, in E. platycephalus,
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34. Coexistence and gene expression of phenylethanolamine N-methyltransferase, tyrosine hydroxylase, and neuropeptide tyrosine in the rat and bovine adrenal gland: effects of reserpine.
Expression and regulation of the catecholamine-synthesizing enzymes phenylethanolamine N-methyltransferase (PNMTase; S-adenosyl-L-methionine:phenylethanolamine N-methyltransferase, EC 2.1.1.28) and tyrosine hydroxylase [TyrOHase; tyrosine 3-monooxygenase, L-tyrosine, tetrahydropteridine:oxygen oxidoreductase (3-hydroxylating), EC 1.14.16.2] and the coexistin
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35. Management of pheochromocytomas in patients with multiple endocrine neoplasia type 2 syndromes.
OBJECTIVE: The authors sought to determine the optimal surgical management of pheochromocytomas that develop in patients with multiple endocrine neoplasia (MEN) type 2 syndromes. SUMMARY BACKGROUND DATA: The performance of empirical bilateral adrenalectomy in patients with MEN 2A or MEN 2B, whether or not they have bilateral pheochromocytomas, is controversi
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36. Endocrine responses to intra-aortic infusions of acetylcholine in conscious calves.
1. Adrenal responses to intra-aortic infusions of acetylcholine (4.5 nmol min-1 kg-1 for 10 min) have been investigated in conscious, functionally hypophysectomized, 3- to 6-week-old calves, in the presence and absence of exogenous ACTH (2 ng min-1 kg-1, I.V.). 2. Acetylcholine produced a substantial fall in adrenal vascular resistance, which was significant