AKBA but no U-73122 causes sustained depression of [Ca2+]i
MM6 cells in PGC buffer were preincubated with vehicle (DMSO), AKBA, AβBA, or U-73122 for 20 s or 20 min, and [Ca2+]i was determined, given as mean ± S.E.. n = 4 to 6, p < 0.01 (**).