OT reduces the increase in [Ca2+]i in LPS-stimulated BV-2 cells. a Representative 340/380 nm ratio of BV-2 cells showing the change of [Ca2+]i in BV-2 cells as induced by LPS (500 ng/ml) in the absence or presence of OT (1 μM). b Summary data (F/F0) of LPS-induced [Ca2+]i elevation, where F0 is the average baseline fluorescence before the application of LPS or OT, and F represents the fluorescence after the application of LPS or OT. n = 20 for LPS group; n = 20 for LPS and OT-co-treated group, ###p < 0.001 LPS + OT VS LPS. All data were shown as mean ± S.D.