Search Results - "Chowienczyk, P. J."

Do we need more vascular imaging for the screening of secondary hypertension? Mid-aortic syndrome in a young male adult by Morselli, F., Karunanithy, N., Chowienczyk, P. J., Faconti, L.

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Vasoactive Drugs Influence Aortic Augmentation Index Independently of Pulse-Wave Velocity in Healthy Men by Kelly, R P, Millasseau, S C, Ritter, J M, Chowienczyk, P J

“…Aortic augmentation index, a measure of central systolic blood pressure augmentation arising mainly from pressure-wave reflection, increases with vascular…”
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Determination of age-related increases in large artery stiffness by digital pulse contour analysis by Millasseau, S C, Kelly, R P, Ritter, J M, Chowienczyk, P J

“…The stiffness of the aorta can be determined by measuring carotid-femoral pulse wave velocity (PWV(cf)). PWV may also influence the contour of the peripheral…”
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Lack of effect of oral vitamin C on blood pressure, oxidative stress and endothelial function in Type II diabetes by Darko, D, Dornhorst, A, Kelly, F J, Ritter, J M, Chowienczyk, P J

“…Type II diabetes is characterized by increased oxidative stress, endothelial dysfunction and hypertension. We investigated whether short-term treatment with…”
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Nebivolol vasodilates human forearm vasculature: evidence for an L-arginine/NO-dependent mechanism by Cockcroft, J R, Chowienczyk, P J, Brett, S E, Chen, C P, Dupont, A G, Van Nueten, L, Wooding, S J, Ritter, J M

“…Nebivolol, a beta 1 selective adrenergic receptor antagonist with additional properties, is a racemic mixture of (S,R,R,R)- and (R,S,S,S)-enantiomers. We…”
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The phytoestrogen genistein produces acute nitric oxide-dependent dilation of human forearm vasculature with similar potency to 17β-estradiol by WALKER, H. A, DEAN, T. S, SANDERS, T. A. B, JACKSON, G, RITTER, J. M, CHOWIENCZYK, P. J

“…Background —Genistein, a phytoestrogen, may have estrogenic cardioprotective actions. We investigated whether genistein influences endothelium-dependent…”
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Effect of fat distribution on endothelial-dependent and endothelial-independent vasodilatation in healthy humans by Williams, I. L., Chowienczyk, P. J., Wheatcroft, S. B., Patel, A., Sherwood, R., Momin, A., Shah, A. M., Kearney, M. T.

“…Aim:  The present study aims to explore the relationship between inflammatory cytokines, plasma lipids, insulin, blood pressure (BP), total adiposity/markers…”
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Effects of inhibition of the L-arginine/nitric oxide pathway on vasodilation caused by β-adrenergic agonists in human forearm by DAWES, M, CHOWIENCZYK, P. J, RITTER, J. M

“…We examined whether vasodilator responses to beta-agonists in human forearm vasculature are mediated in part through the nitric oxide pathway. We measured…”
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Evidence for a Difference in Nitric Oxide Biosynthesis Between Healthy Women and Men by Forte, Pablo, Kneale, Barry J, Milne, Eric, Chowienczyk, Phil J, Johnston, Atholl, Benjamin, Nigel, Ritter, James M

“…There is indirect evidence for a gender difference in nitric oxide (NO) synthesis from vascular endothelium. The aim of the present study was to determine NO…”
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The vasodilator action of nebivolol in forearm vasculature of subjects with essential hypertension by DAWES, M, BRETT, S. E, CHOWIENCZYK, P. J, MANT, T. G. K, RITTER, J. M

“…Aims Brachial artery administration of nebivolol increases forearm blood flow in normotensive subjects through activation of the l‐arginine/NO pathway. The aim…”
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Diastolic blood pressure changes during exercise positively correlate with serum cholesterol and insulin resistance by BRETT, S. E, RITTER, J. M, CHOWIENCZYK, P. J

“…Metabolic factors, including plasma concentrations of cholesterol and insulin resistance, may influence blood pressure through effects on vascular reactivity…”
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Oral treatment with an antioxidant (raxofelast) reduces oxidative stress and improves endothelial function in men with Type II diabetes by CHOWIENCZYK, P. J, BRETT, S. E, GOPAUL, N. K, MEEKING, D, MARCHETTI, M, RUSSELL-JONES, D. L, ÄNGGARD, E. E, RITTER, J. M

“…To determine whether raxofelast, a new water soluble antioxidant decreases oxidative stress and improves endothelial function in men with Type II (non-insulin…”
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Preserved Endothelium-Dependent Vasodilatation in Patients with Essential Hypertension by Cockcroft, John R, Chowienczyk, Philip J, Benjamin, Nigel, Ritter, James M

“…Acetylcholine relaxes intact blood vessels by means of muscarinic receptors that stimulate the synthesis and release of an endothelium-derived relaxing factor…”
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Block of Inward Rectifying K+ Channels (KIR) Inhibits Bradykinin-Induced Vasodilatation in Human Forearm Resistance Vasculature by Dwivedi, R, Saha, S, Chowienczyk, P J, Ritter, J M

“…OBJECTIVE—To investigate the possible involvement of inward rectifying K channels (KIR) in the response of human resistance vessels to bradykinin in vivo…”
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Divergent effects of vitamin C on relaxations of rabbit aortic rings to acetylcholine and NO‐donors by Saram, K de, McNeill, K L, Khokher, S, Ritter, J M, Chowienczyk, P J

“…Vitamin C may influence NO‐dependent relaxation independently of effects on oxidant stress. We investigated effects of vitamin C (0.1 – 10 mmol l−1) on…”
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Assessment of forearm vasodilator responses to acetylcholine and albuterol by strain gauge plethysmography: reproducibility and influence of strain gauge placement by Walker, H. A., Jackson, G., Ritter, J. M., Chowienczyk, P. J.

“…Aims  To determine the within‐subject reproducibility of the forearm blood flow response to acetylcholine and the β2‐adrenoceptor agonist albuterol as measured…”
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Effects of vitamin C and of a cell permeable superoxide dismutase mimetic on acute lipoprotein induced endothelial dysfunction in rabbit aortic rings by Fontana, L, McNeill, K L, Ritter, J M, Chowienczyk, P J

“…Low density lipoprotein (LDL) inhibits endothelium‐dependent relaxation. The mechanism is uncertain, but increased production of superoxide anion O2− with…”
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Preserved Endothelial Function in Patients With Severe Hypertriglyceridemia and Low Functional Lipoprotein Lipase Activity by Chowienczyk, Philip J, Watts, Gerald F, Wierzbicki, Anthony S, Cockcroft, John R, Brett, Sally E, Ritter, James M

“…Objectives. We sought to determine whether hypertriglyceridemia in patients with lipoprotein lipase (LPL) dysfunction is associated with endothelial…”
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Photoplethysmographic assessment of pulse wave reflection: Blunted response to endothelium-dependent Beta2-Adrenergic vasodilation in type II diabetes mellitus by CHOWIENCZYK, P. J, KELLY, R. P, MACCALLUM, H, MILLASSEAU, S. C, ANDERSSON, T. L. G, GOSLING, R. G, RITTER, J. M, ÄNGGARD, E. E

“…We sought to determine whether a simple index of pressure wave reflection may be derived from the digital volume pulse (DVP) and used to examine…”
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Blood flow responses to intra-arterial acetylcholine in man: effects of basal flow and conduit vessel length by Chowienczyk, P J, Cockcroft, J R, Ritter, J M

“…1. Acetylcholine relaxes human resistance vessels and releases nitric oxide and other factors from the endothelium. Comparison of responses to acetylcholine…”
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