Methionine kinetics in adult men: effects of dietary betaine on L-[2H3-methyl-1-13C]methionine

• Published in: The American journal of clinical nutrition Vol. 54; no. 2; pp. 386 - 394
• Main Authors: Storch, K.J, Wagner, D.A, Young, V.R
• Format: Journal Article
• Language: English
• Published: Bethesda, MD American Society for Clinical Nutrition 01.08.1991
• Subjects: ACIDE AMINE; ADDITIF ALIMENTAIRE; ADITIVOS ALIMENTARIOS; administration & dosage; Adult; ADULTE; ADULTOS; ADULTS; AGE GROUPS; AMINES; amino acid metabolism; AMINO ACIDS; AMINOACIDOS; AMMONIUM COMPOUNDS; analogs & derivatives; ANIMALS; BASIC BIOLOGICAL SCIENCES; BETAINA; BETAINE; Betaine - administration & dosage; Betaine - pharmacology; Betaine - urine; BIOCHEMICAL REACTION KINETICS; Biological and medical sciences; blood; blood plasma; CARBON 13; CARBON ISOTOPES; CARBOXYLIC ACIDS; CHEMICAL REACTIONS; CISTINA; college students; CYSTINE; Cystine - administration & dosage; DEUTERIUM; diagnostic use; DIET; dietary supplements; DISULFIDES; DRUGS; ELEVE; ESTUDIANTES; EVEN-ODD NUCLEI; Fundamental and applied biological sciences. Psychology; HOMBRES; HOMME; Humans; HYDROGEN ISOTOPES; INJECTION; INTAKE; INTRAVENOUS INJECTION; ISOTOPE APPLICATIONS; ISOTOPES; KINETICS; LIGHT NUCLEI; LIPOTROPIC FACTORS; Male; MAMMALS; MAN; MASSACHUSETTS; men; METABOLISM; METABOLISME; METABOLISMO; Metabolisms and neurohumoral controls; METHIONINE; Methionine - administration & dosage; Methionine - analogs & derivatives; Methionine - blood; Methionine - metabolism; METHYLATION; METIONINA; Nitrogen metabolism. Proteins. Glycoproteins. Nucleic acids. Collagen; NUCLEI; NUTRITION; Nutritional Requirements; ODD-ODD NUCLEI; ORAL ADMINISTRATION; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; ORINA; pharmacology; PLASMA SANGUIN; PLASMA SANGUINEO; PRIMATES; QUATERNARY COMPOUNDS; REACTION KINETICS; STABLE ISOTOPES; TRACER TECHNIQUES; URINE; VERTEBRATES 550501 > Metabolism > Tracer Techniques; Vertebrates: anatomy and physiology, studies on body, several organs or systems; young adults; Massachusetts; Human; Diet; Betaine; Aminoacid; Methionine; Adult; Male; Kinetics; Metabolism

The effects of a daily 3-g supplement of betaine on kinetic aspects of L-[2H3-methyl-1-13C]methionine (MET) metabolism in healthy young adult men were explored. Four groups of four subjects each were given a control diet, based on an L-amino acid mixture supplying 29.5 and 21.9 mg.kg-1.d-1 of L-meth...