a Representative Oil Red O stained pictures after differentiation (scale bar: 100 µm). b Triglyceride storage of adipocytes assessed via Oil Red O staining. c Real-time monitoring of cell differentiation (xCELLigence: normalised cell index) over a 17-day period. d Gene expression of leptin (LEP), adiponectin (ADIPOQ) and the transcription factors peroxisome proliferator-activated receptor gamma (PPARG). e Leptin and adiponectin levels in cell culture supernatant. Data are expressed as mean ± SEM of n = 3 experiments. Significant differences were derived by ANOVA with *P < 0.05 and **P < 0.01. Source data are provided as a Source Data file.