Abstract:
:1. We attempted to collect information on the metabolism and production of angiotensins (ANG) in different vascular beds in humans by constant i.v. infusion of mono-iodinated [125I]-ANG I into subjects with essential hypertension, at the time of renal vein catheterization as part of the diagnostic work-up for renovascular hypertension. 2. Blood samples were taken from the aorta and the renal, antecubital, femoral and hepatic veins. ANG I, ANG II, [125I]-ANG I and [125I]-ANG II were extracted from plasma, separated by h.p.l.c. and quantitated by radio-immunoassay or gamma counting. 3. Our studies so far are restricted to subjects on captopril 50 mg twice daily. Under ACE inhibition (4-6 h after dosing of captopril) no differences in elimination half-life and regional extraction were found between infused [125I]-ANG and unlabelled ANG I. Extraction of arterially delivered [125I]-ANG I was 80% in the kidney, 45% in the forearm, 58% in the leg and 95% in the hepato-mesenteric vascular bed. 4. Measurements of arterial and venous [125I]-ANG II levels indicated that [125I]-ANG I-II conversion had occurred in the cardio-pulmonary vascular bed. 5. ANG I production in the hepato-mesenteric region could be largely accounted for by the renin activity of circulating plasma, but in kidney and limbs only 20-30% of regionally produced ANG I could be accounted for by plasma renin activity. 6. Thus, a major fraction of regionally produced ANG I appears to be formed locally, i.e. not in circulating plasma.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Schalekamp MA,Admiraal PJ,Derkx FHdoi
10.1111/j.1365-2125.1989.tb03586.xsubject
Has Abstractpub_date
1989-01-01 00:00:00pages
105S-112S; discussion 112S-113Seissn
0306-5251issn
1365-2125journal_volume
28 Suppl 2pub_type
杂志文章abstract:AIMS:Reduced nitric oxide (NO) availability may adversely affect renal perfusion and glomerular filtration. The aim of the present study was to characterize in detail the pharmacological effects of VAS203, an inhibitor of NO synthase, on renal haemodynamics in humans. METHODS:This double-blind, randomized, placebo-con...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1111/bcp.13870
更新日期:2019-05-01 00:00:00
abstract::The evolution of human immunodeficiency virus (HIV) treatment has improved our understanding and management of complex pharmacological issues that have driven improved outcomes and quality of life of the HIV-infected patient. These issues include adherence, long- and short-term toxicities, pharmacoenhancement, pharmac...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/bcp.12403
更新日期:2015-02-01 00:00:00
abstract::1 Theories linking 5-hydroxytryptamine (5-HT) with depression are briefly reviewed. The various experimental strategies adopted to investigate this relationship, examination of autopsy data, CSF metabolite data, 5-HT re-uptake patterns in human blood platelets and imipramine binding studies in human platelets, are dis...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1983.tb02130.x
更新日期:1983-01-01 00:00:00
abstract::1. A questionnaire examining the use of, and knowledge about over-the-counter (OTC) drugs was administered verbally to representatives from 200 urban and 200 rural households. Self-medication was common in both groups but there were more drugs present in rural (336 items) than urban homes (231 items) with the differen...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1989.tb03435.x
更新日期:1989-06-01 00:00:00
abstract::1 The relationship between serum theophylline concentration and daily dose was studied in 45 patients receiving aminophylline orally and in 36 patients receiving it by constant intravenous infusion. 2 Patients were categorized as uncomplicated chronic obstructive pulmonary disease (COPD) or COPD with cor pulmonale (...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1979.tb00893.x
更新日期:1979-01-01 00:00:00
abstract::The efficacy of calcitonin gene-related peptide (receptor) (CGRP-(R)) blocking therapeutics in the treatment of acute migraine headache provided proof-of-concept for the involvement of CGRP in the pathophysiology of this disorder. One of the major hurdles for the development of any class of drugs, including CGRP block...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/bcp.12704
更新日期:2015-11-01 00:00:00
abstract:AIMS:The aim of the present study was to investigate whether differences in total and peak drug exposure upon generic substitution are due to differences between formulations or to intrasubject pharmacokinetic variability of the active substance. METHODS:The study was designed as a retrospective reanalysis of existing...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12828
更新日期:2016-04-01 00:00:00
abstract:AIMS:The aim of this study was to perform an up-to-date meta-analysis on the risk of cardiac malformations associated with gestational exposure to paroxetine, taking into account indication, study design and reference category. METHOD:A systematic review of studies published between 1966 and November 2015 was conducte...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/bcp.12849
更新日期:2016-04-01 00:00:00
abstract::1 A system is described for screening new chemical entities in normal human subjects, which is designed to search for novel drug actions at an early stage of drug development. 2 In single (subject) blind experiments, doses are increased incrementally from one subject to next, with immediate feed-back of results from e...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1980.tb01060.x
更新日期:1980-04-01 00:00:00
abstract::The kinetics of clobazam taken 3 h before, during, and 3 h after a standard hospital meal were studied in six healthy volunteers. Peak plasma levels were significantly lower when the drug was taken with or after meals suggesting that the rate of absorption was reduced by food. The mean area under the concentration vs ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1983.tb02251.x
更新日期:1983-12-01 00:00:00
abstract::The effect of a high potency antacid and food on the bioavailability of famotidine was studied in 17 healthy volunteers in an open randomized three-way cross-over trial. After an overnight fast, famotidine was administered to each subject as follows: 40 mg famotidine orally alone; 40 mg orally with antacid; and 40 mg ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1987.tb03211.x
更新日期:1987-10-01 00:00:00
abstract:WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:Structured medication interviews improve the medication history upon hospitalization. Pharmacy records are valid lists of the prescribed medications available to individual patients. In Denmark, treating doctors now have access to their patients' pharmacy records through a real-...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2007.03017.x
更新日期:2008-02-01 00:00:00
abstract::The airway and cardiovascular effects of intravenous neurokinin A (NKA) and substance P (SP) were compared in six normal subjects. Both SP and NKA increased skin temperature (SkT) and heart rate (HR), but SP was more potent than NKA by factors of 6 and 20 respectively. No change in systolic blood pressure (BP) occurre...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1988.tb03302.x
更新日期:1988-02-01 00:00:00
abstract:AIM:To use non-linear mixed effects modelling and simulation techniques to predict whether PF-04878691, a toll-like receptor 7 (TLR7) agonist, would produce sufficient antiviral efficacy while maintaining an acceptable side effect profile in a 'proof of concept' (POC) study in chronic hepatitis C (HCV) patients. METHO...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2011.04047.x
更新日期:2012-01-01 00:00:00
abstract:AIMS:Canagliflozin is a recently approved drug for use in the treatment of type 2 diabetes. The potential for canagliflozin to cause clinical drug-drug interactions (DDIs) was assessed. METHODS:DDI potential of canagliflozin was investigated using in vitro test systems containing drug metabolizing enzymes or transport...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13186
更新日期:2017-05-01 00:00:00
abstract::Alpha 1-acid glycoprotein (AAG) concentrations and propranolol binding were investigated in the serum of elderly hospitalized patients with acute illness, and healthy elderly and young subjects. Significantly greater AAG concentrations and reduced unbound propranolol fraction were observed in the elderly with acute di...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1984.tb02548.x
更新日期:1984-11-01 00:00:00
abstract::1. In order to investigate accurately the biochemical effects of renin inhibition in man, we have developed a sensitive assay to measure angiotensin I (1-10) decapeptide. 2. Angiotensins were extracted from plasma by adsorption to phenylsilylsilica, and angiotensin I (Ang I) was quantified by radioimmunoassay. The det...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1992.tb04032.x
更新日期:1992-03-01 00:00:00
abstract::A free lignocaine index was developed on the basis of measurements of plasma lignocaine and its principle binding protein, alpha 1-acid glycoprotein (AAG) in 80 samples from 16 patients admitted to the coronary care unit and given prophylactic lignocaine therapy. The free drug fraction, fu, of lignocaine was determine...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1985.tb05132.x
更新日期:1985-12-01 00:00:00
abstract:AIMS:To establish whether the SCN1A IVS5-91 G > A polymorphism of the SCN1A gene, which encodes the neuronal sodium channel alpha subunit, affects responsiveness to the antiepileptic drugs (AEDS) carbamazepine and/or phenytoin. METHODS:SCN1A IVS5-91 G > A polymorphism was genotyped in 228 Japanese epileptic patients t...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2008.03203.x
更新日期:2008-08-01 00:00:00
abstract::1. The beta-adrenergic blocking potencies of practolol, ICI 66082, tolamolol, acebutolol, H 93/26, H 87/07, pindolol and Ro 3-4787 were compared with that of propranolol, on human and rat adipocytes. 2. A good correlation was found between the potencies on adipocytes of the two species but not between our results and ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1975.tb02776.x
更新日期:1975-08-01 00:00:00
abstract::The disposition and effect of orally administered prazosin have been studied in eight women with hypertension which was uncontrolled by beta-adrenoceptor blockade during the last trimester of pregnancy. Results were compared with healthy men of similar age. The median time to peak concentration was 165 min during preg...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1983.tb02213.x
更新日期:1983-11-01 00:00:00
abstract::1 Mianserin does not affect the uptake of biogenic amines into rat brain, in contrast to tricyclic antidepressants which block amine uptake. 2 Mianserin increases the turnover of noradrenaline (NA) in rat brain after acute or chronic administration, whereas tricyclic antidepressants reduce turnover of NA and 5-hydroxy...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::The thermogenic beta 3-adrenoceptor agonist BRL 26830A has been shown to increase weight loss in dieting subjects but tremor was a frequent adverse effect. We have investigated the magnitude and nature of this tremor after a single oral dose in 18 subjects. Two complementary techniques were used to attach the recordin...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1990.tb03821.x
更新日期:1990-10-01 00:00:00
abstract:AIMS:To evaluate the electroencephalographic (EEG) effects, blood concentrations, vehicle irritation and dose-effect relationships for diazepam administered nasally. METHODS:The study had a cross-over design with eight healthy volunteers (one drop out). It consisted of four legs with four different administrations: in...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.0306-5251.2001.01486.x
更新日期:2001-11-01 00:00:00
abstract::1. The pharmacokinetics, bioavailability and metabolism of nitrendipine were studied in six healthy volunteers (three females, three males) using [13C4]-nitrendipine as a biological internal standard. In the first study the drug was administered simultaneously by the i.v. [13C4] and p.o. (solution) routes and in a sec...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1987.tb03214.x
更新日期:1987-11-01 00:00:00
abstract::1 Analgesic nephropathy is part of the analgesic syndrome which has gastrointestinal, haematological, cardiovascular, psychological and psychiatric, and pregnancy and gonadal manifestations; premature ageing may also be a feature. 2 Analgesic nephropathy is a form of renal disease characterized by renal papillary necr...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2125.1980.tb01824.x
更新日期:1980-10-01 00:00:00
abstract::Eleven HIV-infected men participated in a randomized, two-treatment, two-period crossover study to determine the effect of a 25 g protein meal on zidovudine pharmacokinetics. On two separate occasions, 1 week apart, each patient received 200 mg zidovudine in a fasting state or immediately following the protein meal. A...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1992.tb04097.x
更新日期:1992-06-01 00:00:00
abstract::Little is known about the administration of direct-acting oral anticoagulants (DOACs) and the occurrence of alopecia. Our aim was to analyse the reports of alopecia following DOAC administration received until 2 May 2018 from VigiBase, the World Health Organization database. A descriptive analysis of age, sex, serious...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.14221
更新日期:2020-08-01 00:00:00
abstract::1. We have compared acute gastric bleeding caused by a new slow release preparation of indomethacin (indomethacin Continus) with that caused by aspirin and other indomethacin preparations. 2. In a randomized crossover study, blood loss into timed gastric aspirates was determined in 20 healthy volunteers after receivin...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1988.tb03382.x
更新日期:1988-08-01 00:00:00
abstract::1 Measurements have been made of steady state serum phenytoin concentration, serum half-life of (14)C-labelled phenytoin, and the urinary ratio of the major metabolite of phenytoin to the unchanged drug (p-HPPH: DPH ratio) in epileptic patients on and off sulthiame therapy. 2 Starting sulthiame treatment produced an i...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1974.tb00207.x
更新日期:1974-02-01 00:00:00