Results 251 to 260 of about 355,572 (286)
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Journal of Crystal Growth, 2005
Abstract From aqueous solutions containing l -arginine ( l -Arg) and oxalic acid (H2C2O4) with various mole ratios the following salts were prepared: 8 l -Arg·4H2C2O4·10H2O (or formally 2 l -Arg·H2C2O4·2.5H2O), and α , β , γ -forms of l -Arg·H2C2O4 and l -Arg·2H2C2O4.
A.M. Petrosyan +4 more
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Abstract From aqueous solutions containing l -arginine ( l -Arg) and oxalic acid (H2C2O4) with various mole ratios the following salts were prepared: 8 l -Arg·4H2C2O4·10H2O (or formally 2 l -Arg·H2C2O4·2.5H2O), and α , β , γ -forms of l -Arg·H2C2O4 and l -Arg·2H2C2O4.
A.M. Petrosyan +4 more
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Journal of Molecular Structure, 2004
Abstract In the l -Arg+HNO3+H2O system, where Arg stands for arginine (+(H2N)2CNH(CH2)3CH(NH2)COO−), crystals of 2( l -Arg·HNO3)·H2O (or formal l -Arg·HNO3·0.5H2O) (I) and l -Arg·2HNO3 (II) compounds have been produced. The structures of both compounds were solved by X-ray crystallography.
S.S. Terzyan +3 more
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Abstract In the l -Arg+HNO3+H2O system, where Arg stands for arginine (+(H2N)2CNH(CH2)3CH(NH2)COO−), crystals of 2( l -Arg·HNO3)·H2O (or formal l -Arg·HNO3·0.5H2O) (I) and l -Arg·2HNO3 (II) compounds have been produced. The structures of both compounds were solved by X-ray crystallography.
S.S. Terzyan +3 more
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Cardiovascular effect of L-arginine
Current Opinion in Nephrology and Hypertension, 1998Most of the known cardiovascular effects of L-arginine are exerted via its conversion to nitric oxide by nitric oxide synthase. Accumulating evidence indicates that supplemental administration of L-arginine is sufficient to restore endothelium-derived nitric oxide production in many disorders in which endothelium-derived nitric oxide production is ...
A J, Maxwell, J P, Cooke
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Mitochondrion, 2007
We investigated the endothelial function in MELAS patients and also evaluated the therapeutic effects of L-arginine. Concentrations of L-arginine during the acute phase of MELAS were significantly lower than in control subjects. L-arginine infusions significantly improved all symptoms suggesting stroke within 30 min, and oral administration ...
Yasutoshi, Koga +6 more
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We investigated the endothelial function in MELAS patients and also evaluated the therapeutic effects of L-arginine. Concentrations of L-arginine during the acute phase of MELAS were significantly lower than in control subjects. L-arginine infusions significantly improved all symptoms suggesting stroke within 30 min, and oral administration ...
Yasutoshi, Koga +6 more
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Bacterial electrode for l-arginine
Talanta, 1982Streptococcus lactis bacterial cells are employed for the conversion of L-arginine into ammonia. An ammonia gas-electrode is used as a detector. The combination of bacterial action and the gas electrode responds linearly to L-arginine over the concentration range 8.0 x 10(-6) - 1.0 x 10(-3)M, with a slope of 59.0 mV/decade and is selective with respect
S R, Grobler, N, Basson, C W, Van Wyk
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L-Arginine Transport in Disease
Current Medicinal Chemistry-Cardiovascular & Hematological Agents, 2004The importance of membrane transport in normal physiological cell function is unquestionable. However, to what extent alterations in the transport of amino acids are the cause and/or consequence of pathological changes observed in disease states is a question not yet completely clarified. Kinetic experiments with blood cells provide a simple and useful
Antônio Cláudio, Mendes Ribeiro +1 more
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Current Opinion in Nephrology and Hypertension, 1993
The L-arginine: nitric oxide pathway is widely recognized as an important regulator of cell function and communication in a variety of physiological and pathophysiological situations. Recent advances in the biochemistry and molecular biology of nitric oxide synthases have contributed significantly to our understanding of the regulation of nitric oxide ...
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The L-arginine: nitric oxide pathway is widely recognized as an important regulator of cell function and communication in a variety of physiological and pathophysiological situations. Recent advances in the biochemistry and molecular biology of nitric oxide synthases have contributed significantly to our understanding of the regulation of nitric oxide ...
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The l-arginine paradox: Importance of the l-arginine/asymmetrical dimethylarginine ratio
Pharmacology & Therapeutics, 2007Cardiovascular diseases (CVD) are still the most frequent cause of death in Western Europe. Pathophysiological experiments revealed in the last years that the vascular endothelium, as well as a result of the synthesis of nitric oxide (NO), is a crucial regulator of vascular function and homeostasis.
Stefanie M, Bode-Böger +2 more
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Journal of Molecular Structure, 2007
Abstract A new compound Nα-formyl- l -arginine +(H2N)2CNH(CH2)3CH(HN(HCO))COO− with zwitter-ionic structure has been found out in the system l -arginine + HCOOH + H2O. The title compound crystallizes in monoclinic system (space group P21) as monohydrate.
H.A. Karapetyan +3 more
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Abstract A new compound Nα-formyl- l -arginine +(H2N)2CNH(CH2)3CH(HN(HCO))COO− with zwitter-ionic structure has been found out in the system l -arginine + HCOOH + H2O. The title compound crystallizes in monoclinic system (space group P21) as monohydrate.
H.A. Karapetyan +3 more
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The Clinical Pharmacology of L-Arginine
Annual Review of Pharmacology and Toxicology, 2001L-Arginine (2-amino-5-guanidinovaleric acid) is the precursor of nitric oxide, an endogenous messenger molecule involved in a variety of endothelium-mediated physiological effects in the vascular system. Acute and chronic administration of L-arginine has been shown to improve endothelial function in animal models of hypercholesterolemia and ...
R H, Böger, S M, Bode-Böger
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