Figure 1From: Increased betulinic acid induced cytotoxicity and radiosensitivity in glioma cells under hypoxic conditionsCytotoxicity in U251MG and U343MG cell lines after treatment with BA. Both glioma cell lines were treated with increasing doses of BA from 3 - 30 μM. The half maximal inhibitory concentration (IC50) with an incubation time of 24 h was 24 μM in U343MG cells and 23 μM in U251MG cells. Data represent mean values (± SD) of three independent experiments.Back to article page