Fig. 1. Induction of adipocyte differentiation in primary human preadipocyte cells. Phase-contrast images (20x) of human preadipocyte cells (A) and matured adipocyte cells (2 weeks after differentiation) (B). (C) A preadipocyte at metaphase in which the DNA has been hybridized with human whole chromosome painting probes for chromosomes 12 (green) and 16 (red).