Results 201 to 210 of about 124,435 (251)
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Critical Reviews in Clinical Laboratory Sciences, 1999
Homocysteine is a sulfur-containing amino acid generated through the demethylation of methionine. It is largely catabolized by trans-sulfuration to cysteine, but it may also be remethylated to methionine. Regulation of homocysteine is dependent on nutrient intake, especially folate, vitamins B6 and B12.
L J, Langman, D E, Cole
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Homocysteine is a sulfur-containing amino acid generated through the demethylation of methionine. It is largely catabolized by trans-sulfuration to cysteine, but it may also be remethylated to methionine. Regulation of homocysteine is dependent on nutrient intake, especially folate, vitamins B6 and B12.
L J, Langman, D E, Cole
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Homocysteine measurement by Vitros® Microtip homocysteine assay
Clinical Chemical Laboratory Medicine, 2008Elevated circulating total homocysteine is an independent vascular risk factor. Enzymatic homocysteine measurements represent an alternative to HPLC- or immunochemistry-based assays, suitable for automation. Here, we report on analytical performance of a commercial cystathionine beta-synthase-based assay, for use on Vitros automated analyzers.Linear ...
Geert A, Martens +5 more
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Neurotoxicity Research, 2021
Homocysteine is a sulfur amino acid that does not occur in the diet, but it is an essential intermediate in normal mammalian metabolism of methionine. Hyperhomocysteinemia results from dietary intakes of Met, folate, and vitamin B12 and lifestyle or from the deficiency of specific enzymes, leading to tissue accumulation of this amino acid and/or its ...
Angela T. S. Wyse +3 more
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Homocysteine is a sulfur amino acid that does not occur in the diet, but it is an essential intermediate in normal mammalian metabolism of methionine. Hyperhomocysteinemia results from dietary intakes of Met, folate, and vitamin B12 and lifestyle or from the deficiency of specific enzymes, leading to tissue accumulation of this amino acid and/or its ...
Angela T. S. Wyse +3 more
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Annual Review of Nutrition, 1999
▪ Abstract Homocysteine is a sulfur amino acid whose metabolism stands at the intersection of two pathways: remethylation to methionine, which requires folate and vitamin B12 (or betaine in an alternative reaction); and transsulfuration to cystathionine, which requires pyridoxal-5′-phosphate.
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▪ Abstract Homocysteine is a sulfur amino acid whose metabolism stands at the intersection of two pathways: remethylation to methionine, which requires folate and vitamin B12 (or betaine in an alternative reaction); and transsulfuration to cystathionine, which requires pyridoxal-5′-phosphate.
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Homocysteine and atherothrombosis
Lipids, 2001AbstractAtherosclerosis with or without thrombosis superimposed is the most frequent cause of ischemic heart disease (IHD), peripheral arterial disease, and a main cause of stroke. Conflicting results have been reported in genetic, observational, and experimental studies on the relationship between homocysteine and these atherothrombotic diseases ...
Falk, E., Zhou, J., Møller, Jan
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American Journal of Kidney Diseases, 2003
Hyperhomocysteinemia is an independent cardiovascular risk factor that possibly accounts for about one of 5 cardiovascular deaths. It is conceivable that the importance of hyperhomocysteinemia will increase when other risk factors, such as hypertension or hypercholesterolemia, will become less prevalent in the general population.
PERNA, Alessandra +6 more
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Hyperhomocysteinemia is an independent cardiovascular risk factor that possibly accounts for about one of 5 cardiovascular deaths. It is conceivable that the importance of hyperhomocysteinemia will increase when other risk factors, such as hypertension or hypercholesterolemia, will become less prevalent in the general population.
PERNA, Alessandra +6 more
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Homocysteine and Hyperhomocysteinaemia
Current Medicinal Chemistry, 2019Homocysteine (Hcy) is a thiol group containing the amino acid, which naturally occurs in all humans. Hcy is degraded in the body through two metabolic pathways, while a minor part is excreted through kidneys. The chemical reactions that are necessary for degradation of Hcy require the presence of folic acid, vitamins B6 and B12. Consequently, the level
Zarić, Božidarka +5 more
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2000
Chronic alcohol consumption can induce alterations in the function and morphology of most if not all brain systems and structures. However, the exact mechanism of brain damage in alcoholics remains unknown. Partial recovery of brain function with abstinence suggests that a proportion of the deficits must be functional in origin (i.e. plastic changes of
S, Bleich +4 more
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Chronic alcohol consumption can induce alterations in the function and morphology of most if not all brain systems and structures. However, the exact mechanism of brain damage in alcoholics remains unknown. Partial recovery of brain function with abstinence suggests that a proportion of the deficits must be functional in origin (i.e. plastic changes of
S, Bleich +4 more
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Current Opinion in Clinical Nutrition and Metabolic Care, 2000
Hyperhomocysteinaemia has been identified from epidemiological studies as an independent risk factor for cardiovascular disease. Plasma total homocysteine is elevated in renal impairment, which may be a consequence of cardiovascular disease. However, it is also likely that plasma total homocysteine promotes cardiovascular disease, particularly through ...
Woodside, Jayne, Young, Ian
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Hyperhomocysteinaemia has been identified from epidemiological studies as an independent risk factor for cardiovascular disease. Plasma total homocysteine is elevated in renal impairment, which may be a consequence of cardiovascular disease. However, it is also likely that plasma total homocysteine promotes cardiovascular disease, particularly through ...
Woodside, Jayne, Young, Ian
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