Showing 1-30 of 40 results for "

d-011

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Magnus Petersson et al.
Clinical physiology and functional imaging, 28(4), 229-234 (2008-04-04)
Patients with chronic heart failure (CHF) often require higher doses of nitroglycerin (glyceryl trinitrate, GTN) than patients with normal cardiac function to achieve a given haemodynamic goal. Two pathways leading to biotransformation of GTN have been characterized; a high-affinity pathway...
N Higo et al.
Pharmaceutical research, 9(2), 187-190 (1992-02-01)
The metabolism of nitroglycerin (GTN) to 1,2- and 1,3-glyceryl dinitrate (GDN) by hairless mouse skin in vitro has been measured. In the first set of experiments, GTN was incubated with the 9000g supernatant of fresh, homogenized tissue in the presence...
B Auclair et al.
Pharmaceutical research, 15(4), 614-619 (1998-05-20)
To construct a pharmacokinetic (PK) model and to determine population PK parameters of nitroglycerin (GTN), 1,2-dinitroglycerin (1,2-GDN), and 1,3-dinitroglycerin (1,3-GDN). Data were obtained in thirty healthy volunteers following a single dose of a GTN reservoir transdermal patch. Blood samples were...
A Santoro et al.
Arzneimittel-Forschung, 50(9), 779-785 (2000-10-29)
The pharmacokinetics and bioavailability of glyceryl trinitrate (GTN, CAS 55-63-0) and of its main metabolites, i.e. 1,2-glyceryl dinitrate (1,2-GDN, CAS 621-65-8) and 1,3-glyceryl dinitrate (1,3-GDN, CAS 623-87-0), were compared during a single 24-h application of a new GTN transdermal patch...
B P Booth et al.
Anesthesia and analgesia, 78(5), 848-856 (1994-05-01)
Glyceryl trinitrate (GTN) is used to control arterial blood pressure during cardiopulmonary bypass (CPB) procedures, but its effects are often decreased during the period of extracorporeal support. The plasma and urine concentrations of GTN and glyceryl-1,2-dinitrate (1,2-GDN) and glyceryl-1,3-dinitrate (1,3-GDN)...
V Hutt et al.
Arzneimittel-Forschung, 44(12), 1317-1321 (1994-12-01)
In the course of this study both the bioavailability and main pharmacokinetic parameters of the glyceryl trinitrate (GTN, CAS 55-63-0) metabolites 1,2 and 1,3-glyceryl dinitrate (1,2-GDN and 1,3-GDN) were to be determined following transdermal application of a glyceryl trinitrate test...
K M Jensen et al.
Arzneimittel-Forschung, 44(8), 951-953 (1994-08-01)
The plasma profiles of nitroglycerin (glyceryl trinitrate, GTN, CAS 55-63-0) and its dinitrate metabolites (1,2-GDN and 1,3-GDN) were estimated after sublingual administration of GTN tablets 0.5 mg (Nitromex) given in single doses to 20 volunteers. Blood samples (totally 20) were...
B P Booth et al.
Canadian journal of physiology and pharmacology, 71(8), 629-632 (1993-08-01)
It has previously been shown that the vasodilatory response to glyceryl trinitrate (GTN) was decreased during hypothermic cardiopulmonary bypass. The purpose of these experiments was to determine the effect of temperature on GTN-induced relaxation and on GTN biotransformation in rabbit...
T Kikkoji et al.
Pharmaceutical research, 8(10), 1231-1237 (1991-10-01)
The percutaneous penetration kinetics of the antianginal, nitroglycerin (GTN), and its primary metabolites, 1,2- and 1,3-glyceryl dinitrate (1,2- and 1,3-GDN), were evaluated in vitro, using full-thickness hairless mouse skin. GTN and the 1,2- and 1,3-GDNs were applied (a) in aqueous...
D Salvemini et al.
British journal of pharmacology, 110(3), 937-942 (1993-11-01)
1. The aim of this study was to investigate whether two metabolites of glyceryl trinitrate (GTN), 1,2 and 1,3-glyceryl dinitrate (1,2-GDN and 1,3-GDN) could account for the pharmacological effects of GTN. To this end the formation of nitric oxide (NO)...
W E Haefeli et al.
Clinical pharmacology and therapeutics, 52(6), 590-596 (1992-12-01)
Independent of the route of nitroglycerin administration, substantial amounts of 1,2-glyceryl dinitrate (1,2-GDN) and 1,3-glyceryl dinitrate (1,3-GDN) metabolites accumulate in humans. Thus far their pharmacologic activity in comparison to nitroglycerin in humans is unknown. To compare the venodilatory potency of...
M V Wenzl et al.
British journal of pharmacology, 156(8), 1248-1255 (2009-03-04)
Vascular tolerance to nitroglycerin (GTN) may be caused by impaired GTN bioactivation due to inactivation of mitochondrial aldehyde dehydrogenase (ALDH2). As relaxation to GTN is reduced but still sensitive to ALDH2 inhibitors in ascorbate deficiency, we compared the contribution of...
F W Lee et al.
Journal of pharmacokinetics and biopharmaceutics, 21(5), 533-550 (1993-10-01)
Intravenous infusions of nitroglycerin (GTN), 1,2-glyceryl dinitrate (1,2-GDN), and 1,3-glyceryl dinitrate (1,3-GDN) were given to four conscious dogs at 10 micrograms/min, 30 micrograms/min, 50 micrograms/min, and 70 micrograms/min of GTN and 20 micrograms/min and 100 micrograms/min of GDNs. The steady...
R C Jewell et al.
Pharmaceutical research, 9(10), 1284-1289 (1992-10-01)
The FDA Cooperative Efficacy Study of transdermal nitroglycerin utilized a combination of marketed products over a wide dose range. Unfortunately, plasma nitroglycerin concentrations were not determined. The current study was conducted to assess plasma nitrate concentrations after transdermal doses of...
A Santoro et al.
Arzneimittel-Forschung, 50(9), 786-794 (2000-10-29)
The pharmacokinetic characteristics and the bioavailability of glyceryl trinitrate (GTN, CAS 55-63-0) and of its main metabolities 1,2-glyceryl dinitrate (1,2-GDN, CAS 621-65-8) and 1,3-glyceryl dinitrate (1,3-GDN, CAS 623-87-0) during a single 24-h application of three strengths of a newly developed...
F W Lee et al.
Journal of pharmacokinetics and biopharmaceutics, 21(2), 163-173 (1993-04-01)
Studies were carried out in conscious dogs to determine the effects of 1,2-glyceryl dinitrate (1,2-GDN) and 1,3-glyceryl dinitrate (1,3-GDN) on nitroglycerin (GTN) pharmacokinetics and pharmacodynamics. In the first set of experiments, steady state plasma levels (Css) of either 1,2-GDN or...
H R Kwon et al.
Biopharmaceutics & drug disposition, 13(2), 141-152 (1992-03-01)
Nitroglycerin was administered to eight healthy volunteers in the form of sublingual tablets, oral sustained-release tablets, and an oral solution. Blood samples were collected for measurement of nitroglycerin and its two isomeric glyceryl dinitrate metabolites. Blood pressure and pulse rate...
K E Torfgård et al.
Drug metabolism and disposition: the biological fate of chemicals, 20(4), 553-558 (1992-07-01)
The tissue distribution of glyceryl trinitrate (GTN) and its two dinitrate metabolites 1,2-glyceryl dinitrate (1,2-GDN) and 1,3-glyceryl trinitrate (1,3-GDN), was studied in GTN-tolerant and nontolerant male Sprague-Dawley rats. The concentrations of GTN, 1,2-GDN, and 1,3-GDN were measured in plasma, heart...
B Auclair et al.
Therapeutic drug monitoring, 20(6), 607-611 (1998-12-16)
The purpose of this study was to assess the ability of our previously constructed pharmacokinetic (PK) model to describe nitroglycerin (GTN), 1,2-dinitroglycerin (1,2-GDN), and 1,3-dinitroglycerin (1,3-GDN) plasma concentrations after a single-dose application of a GTN transdermal matrix delivery system. GTN...
M Gumbleton et al.
Journal of pharmacokinetics and biopharmaceutics, 21(5), 515-532 (1993-10-01)
The organic nitrate 1,3-glyceryl dinitrate (1,3-GDN) is one of the primary dinitrate metabolites of the antianginal agent nitroglycerin (GTN). Investigational New Drug Approval was sought to administer oral solution doses of 1,3-GDN to a small number (n = 3) of...
T Fujii et al.
Biological & pharmaceutical bulletin, 19(8), 1093-1096 (1996-08-01)
Nitroglycerin (GTN) has been used as the drug of choice in the treatment of angina pectoris. It has been shown that some glutathione S-transferases (GSTs) catalyze the metabolic conversion from GTN to glyceryl dinitrates (GDNs). In this study, we examined...
D T Lau et al.
Biochemical pharmacology, 43(10), 2247-2254 (1992-05-28)
The effects of sulfobromophthalein (SBP) and ethacrynic acid (ECA), both inhibitors of glutathione S-transferase (GST), or glyceryl trinitrate (GTN)-induced vasorelaxation were investigated in rabbit aortic strips. The aortic strips were pre-contracted with phenylephrine, followed by relaxation with 0.5 microM GTN...
M Jørgensen et al.
Journal of chromatography, 577(1), 167-170 (1992-05-20)
A major problem in the analysis of nitroglycerin (propanetriol trinitrate, GTN) and its metabolites [propanetriol 1,2-dinitrate (1,2-GDN) and propanetriol 1,3-dinitrate (1,3-GDN)] has been the adsorption of the nitro compounds to glass apparatus during sample preparation or injection. In this paper...
G S Marks et al.
Canadian journal of physiology and pharmacology, 70(6), 935-937 (1992-06-01)
Incubation of glyceryl trinitrate (GTN) with 5% (w/v) rat brain homogenate (RBH) resulted in biotransformation of the organic nitrate vasodilator drug to a mixture of glyceryl-1,2-dinitrate (1,2-GDN) and glyceryl-1,3-dinitrate (1,3-GDN). Heating of the RBH at 100 degrees C for 5...
Ivan S de la Lande et al.
European journal of pharmacology, 486(2), 201-207 (2004-02-21)
The influence of the endothelium on glyceryl trinitrate metabolism and relaxation and the relationship to tolerance induced by transdermal glyceryl trinitrate was explored in rat aorta. Metabolism was assessed in artery segments incubated with glyceryl trinitrate (1.0 microM) for 2...
Merav Geva et al.
Journal of the American Chemical Society, 125(3), 696-704 (2003-01-16)
Monoclonal antibodies were selected after immunization with crystals of the tripeptide l-leucine-l-leucine-l-tyrosine. They interact with the tripeptide crystals, but do not interact with the tripeptide molecule, with other crystalline surfaces, or with adsorbed protein. The interactions of two antibodies with...
Lan He et al.
The Journal of chemical physics, 136(3), 034501-034501 (2012-01-28)
Molecular dynamics simulations of supported shock waves (shock pressure P(s) ∼ 15 GPa) propagating along the [110], [011], [101], and [111] directions in crystalline nitromethane initially at T = 200 K were performed using the nonreactive Sorescu-Rice-Thompson force field [D....
Colin L Noble et al.
Gastroenterology, 129(6), 1854-1864 (2005-12-14)
Recent data suggest that polymorphisms in the organic cation transporter (OCTN) genes OCTN1 (SLC22A4) and OCTN2 (SLC22A5) represent disease-causing mutations within the IBD5 locus (chromosome 5q31). We investigated associations with disease susceptibility, phenotype, and evidence for epistasis with CARD15 in...
Constanze Paulus et al.
Frontiers in microbiology, 9, 1959-1959 (2018-09-07)
The environment of Lake Baikal is a well-known source of microbial diversity. The strain Streptomyces sp. IB2014/011-12, isolated from samples collected at Lake Baikal, was found to exhibit potent activity against Gram-positive bacteria. Here, we report isolation and characterization of...
Andreas Alexandrou et al.
Journal of investigative surgery : the official journal of the Academy of Surgical Research, 28(1), 8-17 (2014-09-03)
To evaluate the association between the Bsm1 vitamin D receptor polymorphism and the calcium-vitamin D-parathormone axis following bariatric surgery. This cross-sectional study included 86 morbidly obese patients, who underwent either gastric bypass or sleeve gastrectomy, with a mean follow-up of...