Effect of nutritional substrate on sulfolipids metabolic turnover in isolated renal tubules from rat
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概要
- 論文の詳細を見る
Effects of a glycolytic (glucose) and a gluconeogenic renal nutritional substrate (glutamine) on metabolic turnover of sulfolipids, determined as [35S]sulfate incorporation, were compared in renal tubules prepared from well-fed rats. The results showed that the effects of glucose and glutamine, at nearly physiological serum concentration, are quite contrary to each other. Glucose increased the turnover rates of relatively long chain ganglio-series sulfoglycolipids (Gg3Cer II3-sulfate and Gg4Cer II3,IV3-bis-sulfate) (1.7 to 2.4-fold), but not of cholesterol 3-sulfate (0.9-fold). In contrast, glutamine accelerated the turnover rates of relatively short chain sulfoglycolipids (glucosyl sulfatide, galactosyl sulfatide and lactosyl sulfatide) (1.3 to 2.7-fold), as well as cholesterol 3-sulfate (2.4-fold). The possible mechanism which causes these marked differences is also discussed.(Communicated by Tamio YAMAKAWA, M.J.A.)
著者
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Nagai Ken-ichi
Department Of Biochemistry Teikyo University School Of Medicine
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NIIMURA Yukio
Research Center of Biomedical Analysis and Radioisotope, Faculty of Medicine, Teikyo University
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Ishizuka Ineo
Department Of Biochemistry Teikyo University Medical School
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Niimura Yukio
Research Center Of Biomedical Analysis And Radioisotope Faculty Of Medicine Teikyo University
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Tadano-aritomi Keiko
Department Of Biochemistry Teikyo University School Of Medicine
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Tadano‐aritomi K
帝京大学 医学部 生化学
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TADANO-ARITOMI Keiko
Department of Biochemistry, Faculty of Medicine, Teikyo University
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