cyclic adenosine monophosphate
Cyclic Adenosine Monophosphate Mediation of Peptide Neurohormone Effects on the Lobster Cardiac Ganglion
... Four lines of evidence are presented that cyclic adenosine monophosphate cAMP mediates the effects of peptide on the ganglion, but does not play a significant role in 5-HT action: 1 exog[r] ...
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Effects of cyclic adenosine monophosphate modulators on maturation and quality of vitrified-warmed germinal vesicle stage mouse oocytes
... In order to overcome this disadvantage, studies to im- prove the maturation and developmental competence of GV oocytes that have been warmed after vitrification were carried out. Several studies on humans and animal ...
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EVALUATION OF CYCLIC ADENOSINE MONOPHOSPHATE AND NEUROTRANSMITTERS IN EXPERIMENTAL OBESITY: IMPACT OF BLACK PEPPER AND COFFEE AQUEOUS EXTRACTS
... Methods: Rats were divided into 10 groups including control, high-fat diet (HFD), triton, HFD+triton, black pepper+HFD, black pepper+HFD+triton, coffee+HFD, coffee+HFD+triton, mixture+HFD, and mixture+HFD+triton groups. ...
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QUANTUM ANALYSIS OF THE CYCLIC ADENOSINE MONOPHOSPHATE (AMPc) AND GUANOSINE MONOPHOSPHATE CYCLIC (GMPc) IN NEUROTRANSMITTERS
... 15. Dumaz, N., Hayward, R., Martin, J., Ogilvie, L., Hedley, D., Curtin, J. A., & Marais, R. In melanoma, RAS mutations are accompanied by switching signaling from BRAF to CRAF and disrupted cyclic AMP ...
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The Role of Cyclic Adenosine Monophosphate in Adrenergic Effects on Ventricular Vulnerability to Fibrillation in the Isolated Perfused Rat Heart
... tissue cyclic AMP (cAMP) and the vulnerability to ventricular fibrillation was assessed in the isolated perfused rat heart by measurement of ventricular fibrillation threshold (VFT) and vulnerable period duration ...
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Synergistic action of cyclic adenosine monophosphate and calcium mediated chloride secretion in a colonic epithelial cell line
... Vasoactive intestinal polypeptide (VIP) and the calcium ionophore A23187 caused dose- dependent changes in the potential difference and the short circuit current (Isc) across confluent T84 cell monolayers mounted in ...
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Evidence that parathyroid hormone mediated calcium transport in rat brain synaptosomes is independent of cyclic adenosine monophosphate
... To determine the mechanism of action of PTH on Ca++ transport in rat brain synaptosomes, we performed transport studies by the Na-Ca exchanger and also measured cAMP generation in synapt[r] ...
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Atrial natriuretic factor reduces cyclic adenosine monophosphate content of human fibroblasts by enhancing phosphodiesterase activity
... Radioligand binding studies disclosed one class of high affinity atrial natriuretic factor (ANF) receptors on human fibroblast membranes (Kd = 66 pM; maximum number of binding sites [Bmax] = 7,000 sites/cell). ANF ...
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Inhibition of bicarbonate absorption by peptide hormones and cyclic adenosine monophosphate in rat medullary thick ascending limb
... While these findings are consistent with an effect of peptide hormones on thick ascending limb bicarbonate transport, interpretation of the micropuncture experiments is complicated by th[r] ...
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Cyclic adenosine monophosphate prevents the glucocorticoid mediated inhibition of insulin gene expression in rodent islet cells
... We show here that dexamethasone decreases insulin mRNA levels in single islet cells, as in HIT-15 cells, but does not affect these levels in reaggregated islet cells and increases them i[r] ...
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Angiotensin II stimulates early proximal bicarbonate absorption in the rat by decreasing cyclic adenosine monophosphate
... added to the luminal perfusate and the second with continued luminal dibutyryl cGMP administration plus infusion of intravenous angiotensin II 20 ng/kg * min.. The first period was perfo[r] ...
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Effects of endothelin on peptide dependent cyclic adenosine monophosphate accumulation along the nephron segments of the rat
... The inhibitory effect of endothelin in peptide-dependent cAMP accumulation is considered to be specific to AVP and collecting ducts because endothelin had no effect on PTH-dependent cAMP[r] ...
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Defective insulin response of cyclic adenosine monophosphate dependent protein kinase in insulin resistant humans
... microM cyclic AMP in group ...microM cyclic AMP. The decrease in apparent affinity for cyclic AMP during insulin infusion was larger for group S compared with group ...
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Desensitization of adenosine receptor mediated inhibition of lipolysis The mechanism involves the development of enhanced cyclic adenosine monophosphate accumulation in tolerant adipocytes
... Adipocytes isolated from epididymal fat pads from PIA-infused rats have altered lipolytic responses. When lipolysis is stimulated with a relatively high concentration of isoproterenol (10(-7) M), PIA does not inhibit ...
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SITE OF ACTION OF 3',5'-CYCLIC ADENOSINE MONOPHOSPHATE IN PRODUCTION OF TRYPTOPHANASE IN ESCHERICHIA COLI
... If cAMP acts at the initiation of transcription, there should be no cAMP effect when cAMP is added after messenger RNA synthesis has been blocked by rif- ampicin.. If on the[r] ...
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Cyclic adenosine monophosphate acutely inhibits and chronically stimulates Na/H antiporter in OKP cells
... Parathyroid hormone, dopamine, alpha-adrenergic catecholamines, and angiotensin II regulate renal Na excretion, at least in part through modulation of acute cyclic (c)AMP- induced proximal tubule Na/H antiporter ...
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The effect of cyclic adenosine monophosphate (camp) modulators on the activity of selected antimalarial drugs
... the ste6 gene of saccharomyces cerevisiae with pfmdr1 gene of Plasmodium falciparum. and Geyer, J.A. Cyclin-dependent protein kinases as therapeutic drug targets for antimalarial drug de[r] ...
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Virus induced alterations in cyclic adenosine monophosphate generation in hamster islets of Langerhans
... Inoculation of golden Syrian hamsters with Venezuelan encephalitis (VE) virus results in a sustained diminution in glucose-stimulated insulin release that is correctable by cyclic (c) AMP analogs and ...
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Nephrogenous Cyclic Adenosine Monophosphate as a Parathyroid Function Test
... Nephrogenous cyclic AMP NcAMP, total cyclic AMP excretion UcAMP, and plasma immunoreactive parathyroid hormone iPTH, determined with a multivalent antiserum, were prospectively measured [r] ...
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Effects of atrial natriuretic factor on cyclic guanosine monophosphate and cyclic adenosine monophosphate accumulation in microdissected nephron segments from rats
... We could not demonstrate an effect of ANF on cAMP accumulation in any of several preparations studied including: a microdissected rat proximal convoluted tubules in the presence or absen[r] ...
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