l-Methionine Placental Uptake
نویسندگان
چکیده
منابع مشابه
Tumor uptake studies of S-adenosyl-L-[methyl-11C]methionine and L-[methyl-11C]methionine.
Tumor accumulation of S-adenosyl-L-[methyl-11C]methionine ([11C]SAM) was investigated in mice bearing mammary carcinoma (FM3A) and in rats bearing ascitic hepatoma (AH109A). After injection of [11C]SAM the blood clearance of 11C radioactivity was rapid. The 11C level was relatively high in both tumors. The uptake ratios of tumor to organ increased with time in several organs, especially in brai...
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In the chicken intestine,l-methionine is transported by systems that are specific for neutral amino acids (L- and B-like) and by systems that can also transport cationic amino acids (y+m and b0,+-like). These four uptake pathways have been investigated in brush-border membrane vesicles from the jejunum of chickens fed a diet enriched with 0.4%l-methionine. Methionine supplementation from the 1s...
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Two inbred strains of rats were compared as to their ability to incorporate methionine into surviving liver slices. The strains differed significantly in body weight and their reciprocal cross offspring showed marked heterosis. The J strain was built up from four females and two males of a single litter of the Wayne University Fisher line No. 344, with a pedigree of forty-five generations of si...
متن کاملQuantitative evaluation of L-[methyl-C-11] methionine uptake in tumor using positron emission tomography.
Tumor uptake of L-[methyl-11C]methionine ([11C]Met) was assessed in six patients with brain tumors and three patients with lung cancer using positron emission tomography (PET). In arterial plasma samples taken at 5, 15, 30, and 60 min after injection, a fraction of [11C]Met was measured using high performance liquid chromatography in individual patients. Employing curve fitting, a history of [1...
متن کاملEffect of hyperglycemia on in vitro tumor uptake of tritiated FDG, thymidine, L-methionine and L-leucine.
UNLABELLED We have previously demonstrated in vitro and in vivo that tumor uptake of FDG is markedly diminished by acute hyperglycemia. This in vitro study was designed to determine if tumor uptake of PET tracers (FDG, thymidine, L-methionine and L-leucine) is affected by acute or chronic hyperglycemia. METHODS Human ovarian adenocarcinoma (HTB 77 IP3) cells were grown in media containing 100...
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ژورنال
عنوان ژورنال: Reproductive Sciences
سال: 2013
ISSN: 1933-7191,1933-7205
DOI: 10.1177/1933719113488442