“3 In the absence of extracellular Ca2+, the application of 10−7 M BK induced transient elevations of [Ca2+]i and force, both of which thereafter declined to the levels observed before the application of BK.”
“6 In α‐toxin‐permeabilized preparations … RSV, application of 10−7 M BK after a steady state contraction had been induced by a mixture of 5 × 10−7 M Ca2+, 10−6 M GTP and 10−6 M captopril caused an additional force development at a constant [Ca2+]i.”