Search Results - "POWIS, D. A"

Time for a review of admission to medical school? by Rolfe, I E, Pearson, S, Powis, D A, Smith, A J

“…Appropriate selection of medical students is a fundamental prerequisite if medical schools are to produce competent and caring doctors. The selection criteria…”
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Selecting medical students by Powis, D A

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Lanthanum can be transported by the sodium-calcium exchange pathway and directly triggers catecholamine release from bovine chromaffin cells by Powis, D A, Clark, C L, O'Brien, K J

“…A comparison of the effectiveness of the trivalent cation, lanthanum (La3+) relative to Ca2+ in causing catecholamine release from bovine chromaffin cells has…”
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A difference in the cellular mechanisms of secretion of adrenaline and noradrenaline revealed with lanthanum in bovine chromaffin cells by Powis, D.A., Clark, C.L.

“…A comparison of the effectiveness of the trivalent cation, lanthanum (La 3+) relative to Ca 2+ in causing adrenaline and noradrenaline release from bovine…”
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Should medical students be selected only from recent school-leavers who have studied science? by Neame, R L, Powis, D A, Bristow, T

“…This study was undertaken to investigate the apparently widespread belief that in order to be successful at medical school, aspiring candidates must have a…”
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Top school marks don't necessarily make top medical students by Powis, David A, Bristow, Tracey

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Effect of Gd3+ on bradykinin‐induced catecholamine secretion from bovine adrenal chromaffin cells by Bales, Peter J R, Zerbes, Mariann, Powis, David A, Marley, Philip D

“…The effects of Gd3+ on bradykinin‐ (BK‐) induced catecholamine secretion, 45Ca2+ efflux and cytosolic [Ca2+] were studied using bovine adrenal chromaffin…”
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Depleted internal store-activated Ca2+ entry can trigger neurotransmitter release in bovine chromaffin cells by POWIS, D. A, CLARK, C. L, O'BRIEN, K. J

“…A potential role of the intracellular Ca2+ stores in modulating catecholamine release has been investigated in bovine chromaffin cells maintained in tissue…”
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The objective structured interview for medical student selection by Powis, D A, Neame, R L B, Bristow, T, Murphy, L B

“…An objective structured interview is an integral part of the process of selecting and admitting applicants to study medicine at this university. During the…”
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Involvement of pertussis toxin‐sensitive and ‐insensitive mechanisms in α‐adrenoceptor modulation of noradrenaline release from rat sympathetic neurones in tissue culture by Hill, C.E., Powis, D.A., Hendry, I.A.

“…1 Sympathetic neurones derived from superior cervical ganglia of neonatal rats and maintained in tissue culture were used to investigate the modulation of…”
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Acetylcholine receptor channels and their block by clonidine in cultured bovine chromaffin cells by Cull‐Candy, S G, Mathie, A, Powis, D A

“…1. Acetylcholine (10-50 microM) applied to bovine chromaffin cells under whole-cell voltage clamp produced an inward current and an increase in the noise level…”
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Histamine-stimulated phospholipase C activity in bovine adrenal medullary chromaffin cells : the effect of chloride-channel antagonists and low extracellular chloride concentrations by ROBERTS-THOMSON, E. L, PALMER, S. M, POWIS, D. A, BUNN, S. J

“…Histamine activates phospholipase C (PLC) in a number of cell-types including those of neuronal and neuroendocrine origin. We report here that Cl(-)-channel…”
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Angiotensin II increases catecholamine release from bovine adrenal medulla but does not enhance that evoked by K+ depolarization or by carbachol by Powis, D A, O'Brien, K J

“…The effect of angiotensin II on catecholamine release from bovine adrenal medulla has been investigated. In retrogradely perfused, isolated bovine adrenal…”
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Calcium export by sodium-calcium exchange in bovine chromaffin cells by Powis, D A, O'Brien, K J, Von Grafenstein, H R

“…Calcium efflux from bovine chromaffin cells in tissue culture has been examined after loading them with small amounts of Ca2+ by brief depolarization in media…”
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Components of transmembrane potassium (86Rb+) flux during evoked tension development in dog saphenous vein: contribution of the Na(+)-K+ pump by Powis, D A

“…The relationship between the concurrent increase in net K+ efflux and isometric tension development has been studied in perifused dog saphenous vein strips…”
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Alpha 2-adrenoceptors do not regulate catecholamine secretion by bovine adrenal medullary cells: a study with clonidine by Powis, D A, Baker, P F

“…Experiments have been performed with perfused bovine adrenal glands, with freshly isolated chromaffin cells, and with chromaffin cells maintained in tissue…”
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Tyrosine hydroxylase phosphorylation in bovine adrenal chromaffin cells: Clonidine stimulates basal but inhibits nicotinic receptor evoked phosphorylation by Dunkley, Peter R., Côté, Andre, Harrison, Steven M., Herd, Lynn, Hall, Amanda, Powis, David A.

“…Clonidine inhibited the uptake of calcium and the overall phosphorylation of tyrosine hydroxylase induced by nicotinic receptor activation in bovine adrenal…”
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Neurotransmitter release from bovine adrenal chromaffin cells is modulated by capacitative Ca(2+)entry driven by depleted internal Ca(2+)stores by Zerbes, M, Clark, C L, Powis, D A

“…Two potential mechanisms by which the intracellular Ca(2 stores might modulate catecholamine release from bovine adrenal chromaffin cells were investigated:…”
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Improving access to medical courses in Australia for students from geographically isolated areas by Powis, D A, Bristow, T

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Catecholamine release from bovine chromaffin cells: the role of sodium-calcium exchange in ouabain-evoked release by Török, T L, Powis, D A

“…Spontaneous catecholamine (CA) release from bovine chromaffin cells maintained in primary tissue culture has been measured after pre-loading the cells with…”
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