کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9921177 | 1559205 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phenolsulfonphthalein transport by potential-sensitive urate transport system
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The purpose of this study was to elucidate the transporter-mediated secretion systems for phenolsulfonphthalein in brush-border membranes. In human and rat renal brush-border membranes, a potential-sensitive transport system has been shown to be involved in the efflux of organic anions. The uptake of phenolsulfonphthalein into rat renal brush-border membrane vesicles was stimulated by an inside-positive membrane potential. This potential-sensitive uptake of phenolsulfonphthalein was inhibited by probenecid, pyrazinoate and urate. p-Aminohippurate had no effect on the potential-sensitive uptake of phenolsulfonphthalein. Moreover, urate competitively inhibited the uptake of phenolsulfonphthalein. On the other hand, the uptake of phenolsulfonphthalein was slightly increased in the presence of an outward Clâ gradient. These results suggest that phenolsulfonphthalein has high affinity for the potential-sensitive urate transport system but has low affinity for an anion exchanger.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmacology - Volume 518, Issues 2â3, 22 August 2005, Pages 83-89
Journal: European Journal of Pharmacology - Volume 518, Issues 2â3, 22 August 2005, Pages 83-89
نویسندگان
Shirou Itagaki, Soji Shimamoto, Mitsuru Sugawara, Michiya Kobayashi, Katsumi Miyazaki, Takeshi Hirano, Ken Iseki,