Abstract:
:1. Subacute administration of dyflos to guinea-pigs (1.2 mg/kg, s.c., daily for 10 days) led to the development of subsensitivity to carbachol in the ileum but not in the electrically stimulated left atrium. 2. Atria from dyflos-pretreated animals became supersensitive to acetylcholine but the ileum became subsensitive to this agonist despite marked inhibition of cholinesterases. The degree of subsensitivity was less than that for carbachol. 3. Subsensitivity also developed to histamine and was of a similar order to that observed for carbachol supporting the suggestion that subsensitivity is a nonspecific post-receptor mechanism. 4. Other changes which occurred in the ileum, together with the increase in the EC50 value to agonists were an increase in tissue mass, an increase in the slope of the concentration-response curve to agonists and an increase in the maximal response to agonists.
journal_name
Clin Exp Pharmacol Physioljournal_title
Clinical and experimental pharmacology & physiologyauthors
Mitchelson F,O'Shea RAdoi
10.1111/j.1440-1681.1977.tb02683.xsubject
Has Abstractpub_date
1977-11-01 00:00:00pages
533-43issue
6eissn
0305-1870issn
1440-1681journal_volume
4pub_type
杂志文章abstract::This study investigated whether the specific alpha-antagonist, prazosin, stimulated basal plasma renin levels and heart rate. Furthermore the beta-adrenergic nervous system was also investigated to ascertain whether it was involved in this effect. Prazosin (0.1 or 1 mg/kg) was injected subcutaneously (s.c.) to conscio...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1986.tb00936.x
更新日期:1986-07-01 00:00:00
abstract::1. Conscious experimental hypertensive rats injected intraventricularly with 5,6-dihydroxytryptamine (50 microgram) responded with a rapid and long-lasting (4 days) fall in blood pressure and this was accompanied by a bradycardia of similar duration. 2. The acute actions of 5,6-dihydroxytryptamine on the cardiovascula...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1975.tb01855.x
更新日期:1975-11-01 00:00:00
abstract::1. The effect of endothelin on phosphatidylinositol turnover in rat atria was investigated by measuring the generation of inositol phosphates following [3H]-inositol labelling. 2. In the presence of 10 mmol/L LiCl, endothelin caused dose-dependent increases in the accumulation of inositol mono, bis and trisphosphates ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1990.tb01320.x
更新日期:1990-04-01 00:00:00
abstract::1. The present study was designed to compare and contrast the effects of 1 year's treatment with angiotensin-converting enzyme inhibition (captopril 25-100 mg daily) and beta-blockade (atenolol 50-100 mg daily) on hypertensive cardiac structure and function as well as the other established cardiovascular risk factors ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1440-1681.1998.t01-7-.x
更新日期:1998-03-01 00:00:00
abstract::1. The concentrations of gamma-amino butyric acid (GABA) and glutamate were measured in the brains of chickens which were treated with furazolidone (FZ) or nitrofurazone (NF) at oral doses of 12.5, 25 or 50 mg/kg for 5 days. 2. At the end of the treatment, the birds lost about 9% of their bodyweight when on the small ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1989.tb01572.x
更新日期:1989-05-01 00:00:00
abstract::The effects of naloxone on contractility and cardiac rhythm were studied in the rat isolated perfused heart during myocardial ischaemia and reperfusion. Pretreatment of the rat isolated perfused heart with naloxone abolished the reduction in left ventricular pressures and attenuated greatly the arrhythmias due to myoc...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1985.tb00885.x
更新日期:1985-07-01 00:00:00
abstract::1. There is mounting evidence that a wide range of antidepressants share the common feature of increasing hippocampal neurogenesis. The specificity of this association has suggested that an ability to increase neurogenesis might be a useful paradigm to screen for compounds with antidepressant activity. 2. The hope of ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2007.04608.x
更新日期:2007-05-01 00:00:00
abstract::1. Raised intracranial pressure (ICP) is a major factor associated with morbidity and mortality in patients with severe head injury. Identifying the mechanisms responsible for raised ICP may be difficult and, as a result, treatment prescribed may be non-specific and often ineffective. 2. Research aimed at obtaining mo...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.1998.tb02350.x
更新日期:1998-11-01 00:00:00
abstract::1. To investigate the effect of an exercise training programme on antihypertensive drug requirements, 19 sedentary subjects (14 men and five women) with mild essential hypertension (systolic blood pressure greater than 140 mmHg but less than 180 mmHg), aged 29-55 years, were randomly assigned to 16 weeks of moderate i...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1440-1681.1991.tb01445.x
更新日期:1991-05-01 00:00:00
abstract::The aim of this study was to investigate whether enoxaparin (ENX) administration would increase seroma risk and worsen mesh tissue recovery in an experimental rat hernia repair model. Fifty-six adult male Wistar-Albino rats were included in the study. Rats were equally and randomly separated into seven groups: Group 1...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.12582
更新日期:2016-07-01 00:00:00
abstract::1. Iron overload contributes to the pathogenesis of various diseases and directly induces tissue injury. In the present study, we investigated the relationship between heart and liver injury induced by iron overload and cellular endoplasmic reticulum (ER) stress to explore the molecular mechanism of iron overload-indu...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2008.05114.x
更新日期:2009-07-01 00:00:00
abstract::In an attempt to study the effects of thyroid hormones, antithyroid drugs and iodide on the conversion of thyroxine (T4) to triiodothyronine (T3), the liver was obtained from normal, hypothyroid and hyperthyroid rats treated with T4 or T3 . T4 was incubated with liver homogenates and generated T3 was measured. 1. The ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1981.tb00154.x
更新日期:1981-05-01 00:00:00
abstract::1. Mammalian heart muscle is extremely sensitive to the external calcium concentration. It reacts to alterations of the external calcium concentration with an immediate adaptation of contractile force. 2. In mammalian heart there is a network of large transverse tubules throughout the cell. These structures are regula...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.1977.tb02377.x
更新日期:1977-01-01 00:00:00
abstract::Preeclampsia is a complication affecting pregnant women worldwide, which leads to maternal and fetal morbidity and mortality. In this study, we evaluated the efficacy of ferulic acid (FA) on an Nω -nitro-L-arginine methyl ester hydrochloride (L-NAME) induced rat model of preeclampsia. L-NAME was administered to pregna...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.12801
更新日期:2017-10-01 00:00:00
abstract::1. The effects of the Class I anti-arrhythmic drugs quinidine, procainamide, lidocaine, phenytoin and tocainide on mitochondrial lactate dehydrogenase activity were compared in guinea-pig heart preparations. 2. All the tested drugs inhibited the enzyme activity in a concentration-dependent fashion, exhibiting varying ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1993.tb01671.x
更新日期:1993-04-01 00:00:00
abstract::1. Ghrelin is a multifunctional peptide hormone that affects various processes, including growth hormone and insulin release, appetite regulation, gut motility, metabolism and cancer cell proliferation. Ghrelin is produced in the stomach and in other normal and pathological cell types. It may act as an endocrine or au...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2009.05241.x
更新日期:2010-01-01 00:00:00
abstract::1. It has been demonstrated that blood pressure variability (BPV) is increased in hypertension and related to organ damage. It will be important to lower BPV in the treatment of hypertension. The present study was designed to investigate the effect of ketanserin, a 5-HT2A receptor antagonist with a weak alpha1-adrenoc...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2003.03809.x
更新日期:2003-03-01 00:00:00
abstract::1. The study examines whether intracerebroventricular (ICV) infusion of atrial natriuretic peptide (human ANP,1-28) influences renal electrolyte and water excretion, vasopressin release, renal and femoral blood flows in conscious ewes. The blood flow was measured by chronically implanted ultrasonic flow probes. 2. ICV...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1994.tb02494.x
更新日期:1994-03-01 00:00:00
abstract::1. Visfatin (also known as nicotinamide phosphoribosyltransferase or Nampt) is a novel adipokine associated with metabolic abnormalities in obesity and diabetes. The aim of the present study was to determine whether visfatin levels in the circulation and visfatin expression in fat tissues are altered in Lyon hypertens...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2010.05402.x
更新日期:2010-09-01 00:00:00
abstract::Ventilation to one lobe of lung was reduced in anaesthetized open-chest cats and dogs to simulate the ventilation/perfusion (V/Q) mismatching of chronic lung disease. Blood flow to this lobe fell less than ventilation; thus lobar V/Q diminished. In seven cats almitrine (0.5 mg/kg + 10 micrograms/kg per min, i.v.) caus...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1986.tb00926.x
更新日期:1986-06-01 00:00:00
abstract::1. Emotional stress is one of the aetiologies of cardiac accidents, but the precise mechanisms remain to be elucidated. In the present study we used the immobilization stress model in rats to investigate electrocardiographic (ECG) changes. 2. A rapid elevation of the ST segment at the II, III, aVF and precordial leads...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2000.03249.x
更新日期:2000-05-01 00:00:00
abstract::1. Plasma concentrations of prorenin were determined in a transgenic animal model of nephropathy induced by overexpression of transforming growth factor (TGF)-beta1 in the juxtaglomerular apparatus. 2. In both female and male mice, plasma concentrations of prorenin were higher in transgenic than in non-transgenic anim...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2000.03330.x
更新日期:2000-09-01 00:00:00
abstract::The circulating miRNAs are dysregulated in non-small cell lung cancer (NSCLC) and have great promise for clinical diagnosis. The aim of this study was to screen and evaluate the reliability and diagnostic efficiency of candidate serum miRNAs for NSCLC diagnosis. We found that miR-21 and let-7a were significantly dysre...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 信件
doi:10.1111/1440-1681.12977
更新日期:2018-10-01 00:00:00
abstract::1. Atherosclerosis begins with the deposition of cholesterol in arterial tissue that is thought to be derived from circulating lipoproteins. There is considerable evidence implicating low density lipoprotein (LDL) as a primary source of plaque cholesterol and, consequently, there are many articles that deal with vario...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.1997.tb01822.x
更新日期:1997-03-01 00:00:00
abstract::The effects of inflammatory changes on the absorption of different-sized probes and their permeability ratios are poorly understood. The aim of the present study was to determine the effects of a pharmacological agent on the permeability of the gut mucosa to saccharidic probes of larger and smaller molecular weight. P...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,随机对照试验
doi:10.1111/1440-1681.12163
更新日期:2014-02-01 00:00:00
abstract::1. Deposition of β-amyloid (Aβ) peptide is a defining pathological hallmark of Alzheimer's disease (AD) and is involved in memory impairment. Evidence suggests that activation of an extracellular signal-regulated kinase (ERK) pathway is related to Aβ accumulation. Thus, the aim of the present study was to investigate ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2012.12000.x
更新日期:2012-10-01 00:00:00
abstract::1. Total fluid and saline intakes were greater in spontaneously hypertensive rats (SHR) than in normotensive rats (NTR). 2. Total fluid and saline intake were significantly elevated in prehypertensive SHR, 5 weeks old, compared with age-matched NTR, and the intakes fell with age in both strains but remained considerab...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1983.tb00172.x
更新日期:1983-01-01 00:00:00
abstract::1. Physical movement is accompanied by coordinated changes in respiratory and cardiovascular activity proportional to the metabolic demands of the locomotor task. Cardiorespiratory changes include increases in ventilation, blood pressure and heart rate, as well as altered regional sympathetic nerve activity and blood ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1046/j.1440-1681.2002.03610.x
更新日期:2002-01-01 00:00:00
abstract::Microglia are the resident immune cells within the brain and retina, commonly known as the macrophages of the central nervous system (CNS). Microglia survey the surrounding milieu to eliminate invading microbes, clear cellular debris and enforce programmed cell death by removing apoptotic cells. Complementary to their...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/1440-1681.12099
更新日期:2013-08-01 00:00:00
abstract::1. The functional innervation of autonomic target tissues occurs early during development, at a time when both the nerves and post-synaptic target tissues are still differentiating. 2. Physiological responses appear soon after the arrival of the first fibres when uptake and release mechanisms within the nerves are alr...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1046/j.1440-1681.1999.03092.x
更新日期:1999-08-01 00:00:00