Abstract:
:Chronic uremia and metabolic acidosis impair vascular responses to norepinephrine (NE) and also cause multiple metabolic defects in skeletal muscle. These studies were conducted to determine whether decreased vascular responsiveness resulted from putative second messenger metabolism. Tail arteries were used from rats with metabolic acidosis or nonacidotic uremia and from normal controls. In normal arteries, the maximal responses were the same for arginine vasopressin (AVP), NE, and mixtures of the two agonists, suggesting that the two receptor types use the same transduction mechanism. Nonetheless, qualitative differences exist between AVP- and NE-induced responses: (a) Concentration-response curves are steeper for AVP than for NE, (b) EC50 values are similar for AVP between inositol phosphates (IP assays) and contraction, but not for NE, and (c) arteries from rats with metabolic acidosis or uremia show selective blunting of biochemical and contractile responses to NE but not to AVP. We conclude that these metabolic derangements selectively affect alpha-adrenergic receptors, but not AVP receptors or the transduction mechanism leading to contraction.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Fox AW,May RE,Mitch WEdoi
10.1097/00005344-199208000-00014subject
Has Abstractpub_date
1992-08-01 00:00:00pages
282-9issue
2eissn
0160-2446issn
1533-4023journal_volume
20pub_type
杂志文章abstract::The relative efficacies of 240 mg/day diltiazem and 20 mg/day nitrendipine were compared in a placebo-controlled, randomized, crossover study of 48 patients who had both moderate systemic hypertension and stable angina pectoris. Hemodynamic indices were measured by impedance cardiography and echocardiography and bicyc...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
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abstract::The selectivity of single oral doses of xamoterol, 200 mg, prenalterol, 50 mg, and salbutamol, 8 mg, was compared in eight healthy male volunteers by measuring their effects on sleeping heart rate, supine heart rate, blood pressure, forearm blood flow, finger tremor, and exercise heart rate in the presence and absence...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
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doi:10.1097/00005344-198902000-00018
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
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doi:10.1097/00005344-198303000-00016
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
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journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-198509000-00015
更新日期:1985-09-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199202000-00009
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198409000-00007
更新日期:1984-09-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-199600001-00007
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1991-04-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-198914003-00006
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198608003-00008
更新日期:1986-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1990-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-199627003-00008
更新日期:1996-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e3181953e0f
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
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更新日期:1997-04-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章
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abstract::The antiischemic and antiarrhythmic effects of alinidine and a number of novel alinidine analogs were examined by using perfused rat-heart models. In the isolated working rat heart, the alinidine analog TH91:21 (10 microM; a butyl derivative) significantly increased the postischemic recovery of the heart in terms of b...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
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