RBP4 and spindle cell hemangioma: Moreover, the expression levels of PiC and RBP4 were significantly lower than those at P35 (PiC: OH: t=24.836, p<0.001; SCH: t=18.203, p<0.001; CON: t=9.344, p<0.001; RBP4: OH: t=30.335, p<0.001; SCH: t=16.621, p<0.001; CON: t=9.161, p<0.001) among the groups at different time points.