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  • Title: Taurocholate uptake by adult rat hepatocytes in primary culture.
    Author: Schwarz LR, Barth CA.
    Journal: Hoppe Seylers Z Physiol Chem; 1979 Aug; 360(8):1117-20. PubMed ID: 511109.
    Abstract:
    Adult rat hepatocytes were cultured on Petri dishes for 25--30 h prior to measuring their ability to transport taurocholate. A rapid uptake of the bile acid (25 muM) was observed: about 20% was accumulated in the cells within 15 min. The taurocholate transport was saturable with an apparent Km of 28 +/- 10 muM and a maximal velocity V of 0.07 +/- 0.02 nmol/(micrograms DNA x min). Uptake was shown to be energy dependent as it was inhibited about 65% by antimycin A (20 micrograms/ml). The monohydroxylated bile acid taurolithocholate and the dihydroxylated taurochenodeoxycholate inhibited taurocholate transport to about 30 and 40% resp. of the control. The transport process was strongly dependent on sodium ions. It is concluded that the characteristics of taurocholate uptake into adult rat hepatocytes are very similar either in freshly prepared cells or in hepatocytes which are cultured on Petri dishes for 25--30 h.
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