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1,25(OH)2D3 induction of candidate target gene RNAs in U937 cells. Shown are Northern blots of RNA from U937 cells treated with 1,25(OH)2D3 for 0, 4, and 12 h. Clone numbers correspond to the nomenclature in Table 1. Equal amounts of RNA were loaded in each lane, as indicated by the representative membrane stained with methylene blue and showing identical intensities of 28S and 18S rRNAs at each of three time points.
