Ketanserin stabilizes blood pressure in conscious spontaneously hypertensive rats.

abstract：:Excessive activation of the sympatho-adrenomedullary system plays a pathogenic role in triggering and sustaining essential hypertension. We previously reported that, in normotensive rats, intracerebroventricularly (i.c.v.) administered neuropeptides, corticotropin-releasing factor and bombesin induced activation of th...

journal_title：Clinical and experimental pharmacology & physiology

authors： Shimizu T,Yamamoto M,Zou S,Shimizu S,Higashi Y,Saito M

更新日期：2020-07-01 00:00:00

abstract：:1. The effects of cold saline (25 mL) injected over the fetal skin on fetal heart rate (HR) and HR variability (HRV), measured as the coefficient of variation (CV) in pulse interval (PI) and by power spectral analysis (PSA), were measured in 10 chronically catheterized fetal sheep aged 140-144 days. To determine the e...

journal_title：Clinical and experimental pharmacology & physiology

authors： Yu ZY,Lumbers ER

更新日期：2000-08-01 00:00:00

abstract：:1. Neurotensin is released from the intestine into the portal circulation and to exert a systemic effect it must traverse the liver intact. 2. The role of the liver in neurotensin clearance was examined using the isolated perfused rat liver preparation. Two concentrations of neurotensin were used to determine the extr...

journal_title：Clinical and experimental pharmacology & physiology

authors： Brook CW,Shulkes A,Sewell RB,Smallwood RA

更新日期：1987-10-01 00:00:00

abstract：:The possibility that serotonin (5HT) nerve endings in the dorsomedial medulla oblongata participate in the control of blood pressure was investigated in stroke-prone hypertensive rats and in normotensive rats. 5HT nerves were destroyed by injecting 5,7-dihydroxytryptamine bilaterally into the solitary tract nucleus. I...

journal_title：Clinical and experimental pharmacology & physiology

authors： Howe PR,Rogers PF,King RA,Smith RM

更新日期：1983-05-01 00:00:00

abstract：:1. The alpha-adrenoceptor antagonist, phentolamine, was administered intravenously, to conscious or anaesthetized rats, before or after the beta-adrenoceptor antagonist, propanolol. 2. The bradycardia which followed the combined administration of propranolol and phentolamine exceeded that induced by propranolol alone,...

journal_title：Clinical and experimental pharmacology & physiology

authors： Oates HF,Stoker LM

更新日期：1980-03-01 00:00:00

abstract：:1. Oxidative stress plays a role in senescence-associated organ deterioration. This is supported by the beneficial effects of anti-oxidants against ageing-related organ damage, although their role in cardiac ageing has not been elucidated. 2. The aim of the present study was to examine the impact of cardiac-specific o...

journal_title：Clinical and experimental pharmacology & physiology

authors： Wu S,Li Q,Du M,Li SY,Ren J

更新日期：2007-01-01 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

authors： Seim I,Amorim L,Walpole C,Carter S,Chopin LK,Herington AC

更新日期：2010-01-01 00:00:00

abstract：:1. The turnover rate of inositol(1,4,5)trisphosphate (Ins(1,4,5)P3) in noradrenaline-stimulated adult rat left atria was calculated from changes in specific activity and was found to equal 110 ct/min per mg tissue. In contrast, the isomers of inositol mono- and bisphosphates accumulated at a rate of 508 ct/min per mg....

journal_title：Clinical and experimental pharmacology & physiology

authors： Anderson KE,Myers D,Woodcock EA

更新日期：1993-05-01 00:00:00

abstract：:1. Two patients with angiotensin-responsive aldosterone-producing adenoma (APA) and one with adrenal cortical carcinoma demonstrated autonomous secretion of cortisol as well as of aldosterone. 2. The response of cortisol and of aldosterone to ACTH did not differentiate between the two APA which secreted cortisol and t...

journal_title：Clinical and experimental pharmacology & physiology

authors： Tunny TJ,Klemm SA,Gordon RD

更新日期：1990-03-01 00:00:00

abstract：:1. Treatment with angiotensin-converting enzyme (ACE) inhibitors slows the rate of progression of nephropathy in the spontaneously hypertensive rat (SHR) with streptozotocin-induced diabetes. Paradoxically, however, chronic ACE inhibitor therapy has been reported to be associated with induction of ACE in the plasma. W...

journal_title：Clinical and experimental pharmacology & physiology

authors： Hodge G,Makarious MM,Charlesworth JA,Duggan KA

更新日期：1997-06-01 00:00:00

abstract：:In guinea-pig isolated atria, angiotensin I and angiotensin II produced concentration dependent increases in the rate of spontaneous beating and in the release of noradrenaline produced by field stimulation of sympathetic nerves. In rat isolated caudal artery preparations, both angiotensin I and angiotensin II had dir...

journal_title：Clinical and experimental pharmacology & physiology

authors： Ziogas J,Story DF,Rand MJ

更新日期：1984-07-01 00:00:00

abstract：:The kidney has a unique environment that results in relatively low tissue oxygen tension (Po2). However, recent studies have shown that renal hypoxia is more severe during hypertension and may reflect changes in the way O2 is used. The present review summarizes studies that explore the relationship between renal oxyge...

journal_title：Clinical and experimental pharmacology & physiology

authors： Welch WJ

更新日期：2006-10-01 00:00:00

abstract：:1. The acute effects of captopril on blood pressure, renin, angiotensin, bradykinin and catecholamines were examined in patients with essential (n = 10, Group 1), accelerated (n = 6, Group 2) and renal hypertension (n = 14, Group 3). 2. Blood pressure showed little change in Group 1, fell significantly in Group 2, wit...

journal_title：Clinical and experimental pharmacology & physiology

authors： McGrath BP,Matthews PG,Johnston CI

更新日期：1980-09-01 00:00:00

abstract：:1. (-)[125I]-Cyanopindolol (CYP) binding to non-beta-adrenoceptor sites in dog kidney was characterized in homogenate preparations and their distribution in sections determined using autoradiography. 2. In homogenate studies, (-)[125I]-CYP bound to a single population of non-interacting sites (Bmax = 5.45, s.e.m. = 1....

journal_title：Clinical and experimental pharmacology & physiology

authors： Lew R,Summers RJ

更新日期：1987-09-01 00:00:00

abstract：:1. The possibility that the anticonvulsant activity of the benzodiazepines, diazepam and clobazam, is related to changes in EEG parameters, particularly beta activity, was investigated in amygdaloid kindled rats. 2. The effects of diazepam (1, 2, 4, 8 and 16 mumols/kg), administered intraperitoneally (i.p.), clobazam ...

journal_title：Clinical and experimental pharmacology & physiology

authors： Harris QL,Lewis SJ,Young NA,Vajda FJ,Jarrott B

更新日期：1988-10-01 00:00:00

abstract：:1. There has been considerable recent interest in the possibility that increased intake of dietary anti-oxidants may protect against cardiovascular disease. This is partly due to the knowledge that oxidative events in vivo may play a role in the pathogenesis of atherosclerosis. 2. While dietary anti-oxidants, such as ...

journal_title：Clinical and experimental pharmacology & physiology

authors： Morton LW,Abu-Amsha Caccetta R,Puddey IB,Croft KD

更新日期：2000-03-01 00:00:00

abstract：:Both opiates and dopamine play important roles in learning and memory. Although synergistic action between these two neurotransmitters has been found, their functional roles remain unclear. Here, low dose morphine (2.5 mg/kg) and low dose dopamine receptor agonists (apomorphine 0.05 mg/kg; SKF38393 0.01 mg/kg; bromocr...

journal_title：Clinical and experimental pharmacology & physiology

authors： Chen Y,Fu Y,An Y,Cao J,Wang J,Zhang J

更新日期：2018-04-01 00:00:00

abstract：:1. Mast cells cultured from human peripheral blood have been used as a cell model for functional studies of human mast cells, particularly human lung mast cells. However, the beta-adrenoceptor subtype expressed by these cultured cells has not been identified. The aim of the present study was to characterize pharmacolo...

journal_title：Clinical and experimental pharmacology & physiology

authors： Wang XS,Lau HY

更新日期：2006-08-01 00:00:00

abstract：:Nucleocytoplasmic protein shuttling is integral to the transmission of signals between the nucleus and the cytoplasm. The nuclear/cytoplasmic distribution of proteins of interest can be determined via fluorescence microscopy, following labelling of the target protein with fluorophore-conjugated antibodies (immunofluor...

journal_title：Clinical and experimental pharmacology & physiology

authors： Molenaar C,Weeks KL

更新日期：2018-10-01 00:00:00

abstract：:1. Hypoxia arises in solid tumour because of inefficient blood supply. While hypoxic cells are resistant to radiotherapy and probably to many chemotherapeutic drugs they can, in principle, be turned to advantage through the development of hypoxia-activated cytotoxic drugs (bioreductive drugs). 2. Three general approac...

journal_title：Clinical and experimental pharmacology & physiology

authors： Wilson WR,Pruijn FB

更新日期：1995-11-01 00:00:00

abstract：:1. Although measuring the rate of firing of multi-unit muscle sympathetic nerve activity (MSNA) has provided important information in many aspects of cardiovascular medicine, measuring single-unit vasoconstrictor activity provides a better understanding of the possible mechanisms underlying disturbed sympathetic nervo...

journal_title：Clinical and experimental pharmacology & physiology

authors： Lambert E,Dawood T,Schlaich M,Straznicky N,Esler M,Lambert G

更新日期：2008-04-01 00:00:00

abstract：:1. Piretanide is a new loop diuretic resembling furosemide. The effects of this diuretic on various parameters of renal function and on the excretion of the major ions were studied on anaesthetized, hydrated rats. 2. Piretanide induced a marked diuresis and increased sodium, potassium, chloride and calcium excretion. ...

journal_title：Clinical and experimental pharmacology & physiology

authors： Nguyen-Simonnet H,Gauthier C,Pellet M

更新日期：1981-07-01 00:00:00

abstract：:1. It has been suggested that Na+/K(+)-ATPase and Na(+)-dependent glutamate transport (GluT) are tightly linked in brain tissue. In the present study, we have investigated Na+/K(+)-ATPase activity using Rb+ uptake by 'minislices' (prisms) of the cerebral cortex. This preparation preserves the morphology of neurons, sy...

journal_title：Clinical and experimental pharmacology & physiology

authors： Nanitsos EK,Acosta GB,Saihara Y,Stanton D,Liao LP,Shin JW,Rae C,Balcar VJ

更新日期：2004-11-01 00:00:00

abstract：:1. Responses of splenic diameter measured by sonomicrometry to alpha- and beta-adrenoceptor stimulants were estimated together with simultaneously measured systemic arterial and splenic venous concentrations of red blood cells (RBC), white blood cells (WBC) and platelets (PLT) in anaesthetized dogs. 2. Intravenous and...

journal_title：Clinical and experimental pharmacology & physiology

authors： Ojiri Y,Noguchi K,Shiroma N,Matsuzaki T,Sakanashi M,Sakanashi M

更新日期：2002-01-01 00:00:00

abstract：:1. Telomeres (ends of chromosomes) undergo constant remodelling during cell development, proliferation and differentiation, as well as in neoplastic cell immortalization and transformation. How the cellular microenvironment influences telomere remodelling (lengthening or shortening) remains largely unknown. 2. Recentl...

journal_title：Clinical and experimental pharmacology & physiology

authors： Liu JP,Nicholls C,Chen SM,Li H,Tao ZZ

更新日期：2010-01-01 00:00:00

abstract：:1. Adrenaline can enhance the stimulation-induced release of transmitter noradrenaline in sympathetically innervated tissues by activating prejunctional beta-adrenoceptors. 2. Adrenaline incorporated into sympathetic transmitter stores by neuronal uptake can be subsequently released as a co-transmitter and can then ac...

journal_title：Clinical and experimental pharmacology & physiology

authors： Majewski H,Tung LH,Rand MJ

更新日期：1981-09-01 00:00:00

abstract：:This study explored the effects and mechanisms of dopamine D1 receptors (DR1) activation on the apoptosis of osteosarcoma cells (OS732).The DR1 agonist SKF-38393 decreased the viability of OS732 cells and increased their rate of apoptosis, whereas the DR1 antagonist SCH-23390 abolished the effects of SKF-38393. In OS7...

journal_title：Clinical and experimental pharmacology & physiology

authors： Gao J,Gao F

更新日期：2017-11-01 00:00:00

abstract：:A high-salt diet in rats has been shown to result in enhanced vasoconstrictor and/or reduced vasodilator responses of isolated arteries to agonists. The present experiments were designed to investigate the effects of dietary salt on the responses of the pressurized mesenteric resistance artery of the dog to constricto...

journal_title：Clinical and experimental pharmacology & physiology

authors： Sofola O,Knill A,Myers D,Hainsworth R,Drinkhill M

更新日期：2004-10-01 00:00:00

abstract：:1. Cardiovascular events and outcome in septic shock may be predicted by monitoring the fall in intramural pH (pHi), as an index of splanchnic perfusion and mucosal ischaemia. In the present study, a small animal model for monitoring the changes of gastric pHi or intramucosal [H+] following challenge with the endotoxi...

journal_title：Clinical and experimental pharmacology & physiology

authors： Lamarque D,Whittle BJ

更新日期：2001-03-01 00:00:00

abstract：:Simultaneous measurements of smooth muscle membrane potential and tension were made from isolated pieces of rat tail artery. A single electrical stimulus to the perivascular nerves produced a transient contraction of the smooth muscle. The amplitude of the contraction was increased after removal of the endothelium. Th...

journal_title：Clinical and experimental pharmacology & physiology

authors： Kotecha N,Neild TO

更新日期：1986-03-01 00:00:00