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Dietary cysteine reduces the methionine requirement in men
amino acid requirement stable isotopes methionine
2016/6/14
Despite early evidence suggesting that dietary cysteine
has a sparing effect on methionine requirements, some recent
reports question the existence of a measurable sparing capacity.
Choline-related supplements improve abnormal plasma methionine-homocysteine metabolites and glutathione status in children with cystic fibrosis
Choline betaine phospholipids ratio of glutathione to glutathione disulfide GSH:GSSG cystic fibrosis
2008/12/12
Background: Liver triacylglycerol accumulation and oxidative stress are common in cystic fibrosis (CF) and also occur in choline deficiency. Previously, we showed an association between elevated plasm...
Daily methionine requirements of healthy Indian men, measured by a 24-h indicator amino acid oxidation and balance technique
Well-nourished Indian adults 24-h indicator amino acid balance requirement for sulfur-containing amino acids
2016/12/30
The 1985 FAO/WHO/UNU upper requirement for the sulfur-containing amino acids in healthy adults, which was set at 13 mg ?kg−1 ?d−1, is based on nitrogen balance studies in Western subjects....
The detailed study by Bosy-Westphal et al (1) in this issue of the Journal echoes and significantly extends observations that have been made in numerous laboratories during the past half century. Howe...
Effect of protein and methionine intakes on plasma homocysteine concentrations:a 6-mo randomized controlled trial in overweight subjects
Protein methionine homocysteine diet obesity cardiovascular disease
2016/12/20
Background: A high plasma homocysteine concentration is an independent risk factor for cardiovascular disease. Homocysteine concentrations are thought to be raised by high protein and methionine ...
Sex-related differences in methionine metabolism and plasma homocysteine concentrations
Homocysteine sex amino acids kinetics, sulfur amino acids methionine,
2016/6/7
Background: Elevated fasting homocysteine concentrations are
considered a risk factor for vascular disease. Homocysteine, which
is produced by the transmethylation of methionine, can be either
reme...
Cysteine kinetics and oxidation at different intakes of methionine and cystine in young adults
Cysteine oxidation cysteine kinetics sulfur amino acid metabolism obligatory oxidative losses obligatory nitrogen losses young adults methionine cystine
2016/6/3
Background: We previously studied methionine kinetics and
oxidation with the tracer L-[1-13C, methyl-2
H3]methionine.
Objectives: We sought to explore methionine-cysteine interrelations
in adults ...