Figure 5. Patterns of change, from d0 to d5, of three characteristics of the voltage-insensitive Ca²⁺ channels in collagenase-isolated fibres.

A, examples of channel activity records. B, occurrence of voltage-insensitive Ca²⁺ channels, the number of fibres tested is given for each column. C, mean open probabilities of the same channels. D, integrated (over 120 s) amounts of charges carried through the channels. Open bars, normal fibres; filled bars, mdx fibres. Level of significance of the difference between normal and mdx fibres: * P ≥ 0.05, ** P ≥ 0.01. Fibres were obtained from seven normal and eight mdx mice.