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Effects of DL-palmitoylcarnitine (PC), an inhibitor of calciumactivated, phospholipid-dependent protein kinase (protein kinase C), on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced cell differentiation were investigated in human promyelocytic leukemia cells (HL-60). TPA caused HL-60 cell adhesion concomitant with morphological changes, and an increase(More)
  Conflicting results have been reported on segmental differences in expression of P-glycoprotein (P-gp) along the small intestine of animals and humans. In this study, we investigated P-gp mRNA and protein levels within each of nine segments of rat small intestine. In addition, P-gp activity in each segment was evaluated in terms of permeability of(More)
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