紀要論文 Several Amino Acids and Carnitine Transport Activities of the Epithelial Cells of Bovine Mammary Gland

Ochiai, Hideharu  ,  Sato, Reiichiro  ,  Onda, Ken

28pp.1 - 4 , 2017-03-31 , 麻布大学 , Azabu University
ISSN:1346-5880
NII書誌ID(NCID):AA11561468
内容記述
We investigated several amino acids and carnitine transport activities of bovine mammary gland epithelial cells. Gly, Ala, Gln, Glu, Arg, Leu, cystine and carnitine transport activities at 1 μmol/L substrate concentration were 24.0 ± 3.97, 90.9 ± 13.4, 32.5 ± 9.0, 14.2 ± 5.1, 48.9 ± 11.4, 48.8 ± 5.1, 22.7 ± 6.8 and 2.56 ± 0.96 nmol/mg protein/min, respectively. Na-dependency of transport was observed in Gly, Ala and Gln, but not in Arg, Leu and carnitine. Glu and Cys transport activity without Na condition were reduced to 36%, 63% in Na-free condition, respectively. Carnitine transport activities were low but detectable with or without Na condition. There was no correlation between amino acid transport activities and their concentrations in milk. The data clarified in this paper will be basic data for metabolic analysis of bovine mammary gland.
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