... or without hematoxylin staining. In hypoxia experiments, 3T3-L1 cells were maintained in a hypoxia chamber (Invivo 400; Ruskinn Inc., Cincinnati,OH, USA) constantly maintained at 1% O2. Culturemedium ... lgÆmL)1insulin, 1 lm dexamethasone, and0.5 mm IDM). Cells were then maintained in DMEM con-taining 10% fetal bovine serum and 1 lgÆmL)1insulin. The medium was replaced every other day. ... cultured in DMEM containing 10% fetal bovineserum. OP9 cells were grown in aMEM containing 20%fetal bovine serum. C2C12 cells were maintained in DMEMcontaining 10% fetal bovine serum.Adipogenic...