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Grapefruit juice increases the oral availability of a variety of CYP3A4 substrates. It has been shown that recurrent grapefruit juice ingestion results in a loss of CYP3A4 from the small bowel(More)
The human colon carcinoma cell line, Caco-2, is widely used as a model for oral absorption of xenobiotics. The usefulness of Caco-2 cells has been limited, however, because they do not express(More)
Under certain culture conditions, exposure of the human colon adenocarcinoma cell line Caco-2 to 1,25-(OH)(2)-D(3) induces expression of CYP3A4 to levels comparable to that in human small intestinal(More)