Results 11 to 20 of about 3,729,717 (272)

Discrepancies Between Nitroglycerin and NO-Releasing Drugs on Mitochondrial Oxygen Consumption, Vasoactivity, and the Release of NO [PDF]

open access: bronzeCirculation Research, 2005
It has been generally acknowledged that the actions of glyceryl trinitrate (GTN) are a result of its bioconversion into NO. However, recent observations have thrown this idea into doubt, with many studies demonstrating that NO is present only when there ...
Alvarez Barrientos, Alberto   +6 more
core   +9 more sources

Head-up tilt testing potentiated with oral nitroglycerin: a randomized trial of the contribution of a drug-free phase and a nitroglycerin phase in the diagnosis of neurally mediated syncope. [PDF]

open access: bronzeEuropace, 1999
BACKGROUND Since the pharmacological challenge with nitroglycerin (NTG) follows the initial drug-free phase in current tilt testing protocols, the effects of nitroglycerin alone and the appropriate duration of the basal phase are unknown.
A. Bartoletti   +9 more
semanticscholar   +5 more sources

Nitroglycerin as a Hypotensive Drug during General Anesthesia [PDF]

open access: bronzeSurvey of Anesthesiology, 1978
Circulatory variables and arterial partial pressure for oxygen (PaO2) were compared in 91 anesthetized patients who received infusions of either nitroglycerin (TNG) or nitroprusside (SNP) to induce hypotension for the purpose of decreasing intraoperative blood loss.
N. Fahmy
semanticscholar   +6 more sources

The auditory function in migraine model rats induced by postauricular nitroglycerin injection

open access: yesFrontiers in Neurology, 2023
ObjectiveThe mechanism by which migraines produce inner ear-related symptoms is not well understood. Previous studies have found that the latency of auditory brainstem response (ABR) in animal models of migraine has changed, but the threshold has not ...
Rongxiang Qi   +3 more
doaj   +2 more sources

Recent Advancement of Medical Patch for Transdermal Drug Delivery

open access: yesMedicina, 2023
Transdermal patches are a non-invasive method of drug administration. It is an adhesive patch designed to deliver a specific dose of medication through the skin and into the bloodstream throughout the body.
Won Fen Wong   +3 more
doaj   +2 more sources

Effects of nitroglycerin versus labetalol on peripheral perfusion during deliberate hypotension for sinus endoscopic surgery: a randomized, controlled, double-blinded trial

open access: yesBMC Anesthesiology, 2020
Background Deliberate hypotension is used to provide a bloodless field during functional endoscopic sinus surgery; however, the impact of controlled hypotension during anesthesia on peripheral tissue perfusion has not been extensively evaluated.
Marwa Zayed   +11 more
doaj   +2 more sources

Hydralazine prevents nitroglycerin tolerance by inhibiting activation of a membrane-bound NADH oxidase. A new action for an old drug. [PDF]

open access: bronzeJournal of Clinical Investigation, 1996
Hydralazine has been shown to reduce mortality in patients with congestive heart failure when given concomitantly with isosorbide dinitrate. Recently, we demonstrated that nitrate tolerance is in part due to enhanced vascular superoxide .O2- production ...
T. Münzel   +7 more
semanticscholar   +2 more sources

Platelets, vasoconstriction, and nitroglycerin during arterial wall injury. A new antithrombotic role for an old drug.

open access: bronzeCirculation, 1988
Endothelial injury in vivo is associated with platelet deposition and a localized platelet-dependent vasoconstrictive response. To assess the influence of nitroglycerin on platelets and vasoconstriction, quantitative 111In-labeled platelet deposition (no
J. Lam, J. Chesebro, V. Fuster
semanticscholar   +3 more sources

The Mechanisms of Nitroglycerin Action: Stenosis Vasodilatation as a Major Component of the Drug Response [PDF]

open access: closedCirculation, 1981
The effect of sublingual or intracoronary nitroglycerin (NTG) on luminal caliber in normal and diseased portions of epicardial coronary arteries was determined in 85 lesions from 57 typical patients with ischemic heart disease. Measurements were made from coronary angiograms, using a computer-assisted method and a carefully blinded protocol for ...
B. Brown   +5 more
semanticscholar   +5 more sources

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