Effect of bamboo leaf extracts on cell viability of 3T3-L1 adipocytes. Differentiated 3T3-L1 adipocytes were treated with various concentrations (0, 50, 100, 200, and 400 μg/mL) of bamboo leaf extracts and incubated for 72 h at 37 °C in a humidified incubator containing 5% CO2. Each value is expressed as mean ± SD (n = 3). NS not significant, BE bamboo leaf ethanol extract, BW bamboo leaf water extract