Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. C. Avenant"'
Publikováno v:
European Journal of Clinical Pharmacology. 41:517-519
We have used systolic time intervals (STI) to measure inotrophy and chronotropy as indirect measures of the actions of noradrenaline, in order to ascertain whether the depletion of cardiac noradrenaline stores which has been shown to occur in laborat
Publikováno v:
British Journal of Clinical Pharmacology. 29:254-256
The influence of autonomic blockers on the heart rate of ten Bushmen and eight White volunteers was studied. There were significant differences in heart rate response to atropine alone between the White's and Bushmen. However, after prior beta-adreno
Publikováno v:
Humanexperimental toxicology. 10(3)
1 This study has found no occurrence of poor metabolism of sparteine within a South African Venda populaton of 97 subjects. 2 On the basis of MR (metabolic ratio) the mean and distribution of the results are very similar to those found in Ghanaians.5
Publikováno v:
European journal of clinical pharmacology. 39(3)
The purpose of this controlled study was to study the effect of cimetidine and ranitidine on the myocardium of 8 healthy male volunteers using systolic time intervals. Ranitidine caused a significant decrease in the QS2I, as from 40 min indicating a
Publikováno v:
European Journal of Clinical Pharmacology. 40:317-318
The calcium antagonist falipamil, a chemical congener of verapamil, has anticholinergic properties. It was decided to study the interaction of verapamil with the anticholinergic drugs, atropine and pirenzepine, using healthy male volunteers. After at
Publikováno v:
Human Toxicology. 8:365-368
1 The metabolic 4-hydroxylation of debrisoquine has been studied in a group of 98 black African villagers in Vendaland. 2 The metabolic α-hydroxylation of metoprolol has been studied in 94 of the same black African villagers. 3 A 4% prevalence of po
Publikováno v:
Human toxicology. 7(3)
1 The metabolic oxidation of debrisoquine has been studied in a group of 96 San Bushmen. 2 The amounts of debrisoquine and 4-hydroxy-debrisoquine excreted in 0-8 h urine were measured and the metabolic ratio (% dose as debrisoquine/% dose as 4-hydrox
Publikováno v:
Human toxicology. 8(1)
1 The metabolic oxidation of metoprolol has been studied in a group of 98 San Bushmen. 2 The amounts of metoprolol and α-hydroxy metoprolol excreted in 0-8 h urine collection, after dosing with 100 mg metoprolol, were measured and the metabolic rati
Publikováno v:
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 64(15)
A baboon model was used to investigate the effects of atenolol, nadolol, sotalol and labetalol on renal function. The glomerular filtration rate (GFR) and renal blood flow (RBF) were measured, using radionuclides and a gamma camera, before and after
Publikováno v:
Human toxicology. 6(2)
1 The excretion of antipyrine metabolites over 48 h as percentage dose and the antipyrine kel and metabolite formation rate constants have been measured for 20 healthy Venda Africans. 2 To allow comparison with published data from inter-ethnic studie