نتایج جستجو برای: hydroxylamine hydrochloride

تعداد نتایج: 46174  

Journal: :The Journal of pharmacology and experimental therapeutics 2004
Joseph R Kurian Sunil U Bajad Jackie L Miller Nathaniel A Chin Lauren A Trepanier

Hydroxylamine metabolites, implicated in dose-dependent and idiosyncratic toxicity from arylamine drugs, and amidoximes, used as pro-drugs, are metabolized by an as yet incompletely characterized NADH-dependent microsomal reductase system. We hypothesized that NADH cytochrome b5 reductase and cytochrome b5 were responsible for this enzymatic activity in humans. Purified human soluble NADH cytoc...

Journal: :General physiology and biophysics 1990
I Kucera P Skládal

Three sites of inhibitory action of hydroxylamine were identified in the respiratory chain of anaerobically grown bacterium Paracoccus denitrificans. Terminal oxidases were blocked at concentrations of 10(-4) to 10(-3) mol.l-1, and the inhibitor competed with artificial donor of electrons N, N, N', N'-tetramethyl-l, 4-phenylenediamine. In the anaerobic part of the respiratory chain inhibition o...

Journal: :Occupational medicine 2009
Steven Tran Helen Francis Jennifer Hoyle Robert Niven

BACKGROUND Occupational disease linked to the paper recycling industry has not been well documented. No previously confirmed formal diagnosis of occupational asthma (OA) caused by hydroxylamine has been made. METHODS We have assessed and performed occupational assessment of eight workers involved in this industry. Two of these were later diagnosed with OA and are reported here. RESULTS Both...

2005
CHUNYANG WEI Michael B. Hall David M. Ford Mahmoud El-Halwagi Chunyang Wei Sam Mannan Wei Chang Kaylee Chang

Thermal Runaway Reaction Hazard and Decomposition Mechanism of the Hydroxylamine System. (August 2005) Chunyang Wei, B.E., Dalian University of Technology; M.S., University of Tulsa Chair of Advisory Committee: Dr. M. Sam Mannan Chemical reactivity hazards have posed a significant challenge for industries that manufacture, store, and handle reactive chemicals. Without proper management and cont...

Journal: :Biochemical Society transactions 2002
M Rudolf O Einsle F Neese P M H Kroneck

The pentahaem enzyme cytochrome c nitrite reductase catalyses the reduction of nitrite to ammonia, a key reaction in the biological nitrogen cycle. The enzyme can also transform nitrogen monoxide and hydroxylamine, two potential bound reaction intermediates, into ammonia. Structural and mechanistic aspects of the multihaem enzyme are discussed in comparison with hydroxylamine oxidoreductase, a ...

Journal: :The Journal of General Physiology 1942
Hans Gaffron

1. The effect of poisons upon the photoreduction with hydrogen in Scenedesmus and similar algae has been studied. The poisons used were cyanide, hydroxylamine, dinitrophenol, and carbon monoxide, substances known to inhibit more or less specifically certain enzymatic reactions. 2. It was found that quite generally one has to distinguish between the action of poisons upon the photoreduction in t...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2013
Joanna E Barbara Faraz Kazmi Andrew Parkinson David B Buckley

Metabolism-dependent inhibition (MDI) of cytochrome P450 (P450) enzymes has the potential to cause clinically relevant drug-drug interactions. In the case of several alkylamine drugs, MDI of P450 involves formation of a metabolite that binds quasi-irreversibly to the ferrous heme iron to form a metabolic intermediate (MI) complex. The specific metabolites coordinately bound to ferrous iron and ...

Journal: :FEMS Microbiology Letters 1995

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