Publications by authors named "Stephen Phoon"

Objective: To determine whether blood pressure (BP) responses to pressor stimuli during hormone replacement therapy are reduced by oral conjugated equine estrogens 0.625 mg/day (ERT) and ERT in combination with 5 mg/day continuous medroxyprogesterone (HRT) in women with and without type 2 diabetes.

Methods: Twenty type 2 diabetic and 20 non-diabetic women completed a three period, randomised, double bind crossover studying the effects of 1 month of therapy of ERT, HRT and placebo on BP responses to mental arithmetic and isometric stress and to intravenous infusions of noradrenaline and angiotensin II.

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The effects of angiotensin II (Ang II) and the Ang II type 2 (AT(2)) receptor antagonist, PD 123319, on forearm vascular resistance (FVR) were studied in elderly women during Ang II type 1 (AT(1)) receptor antagonist therapy. Eight women, aged 67 +/- 6 years, received the AT(1)-receptor antagonist, candesartan, 8-16 mg once-daily for three weeks. FVR responses to intra-brachial arterial infusions of Ang II (8-32 ng/minute) during the co-infusion of PD 123319 (8 microg/minute) or placebo were measured at the end of the second and third weeks in a randomised, double-blind, crossover study.

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