RANKL Gene Expression. Samples were normalized to GAPD MFI (MedianFluorescence Intensity). Error bars represent the standard deviations of the average responses. Values were expressed as mean ± SEM; p < 0.05 is considered significant. a indicates significant difference compared to the Sham group. Sham (water vehicle), OVXC (water vehicle), LPva (Labisia pumila var. Alata 17.5 mg/kg/day), ERT (Premarin 64.5 μg/kg/day).