Fig. 6.
Fig. 6. Inhibition of low-density cell formation by calcium. / (A) To determine the effect of calcium on light cell formation, 7 experiments were performed. During oxy/deoxy cycling, calcium decreased low-density cell formation compared with the concurrent, calcium-free control by 38%. Calcium did not have an effect on the oxy-incubated cells (P > .65). (B) To determine the effect of Ca++ plus 1 μM charybdotoxin, a KCa inhibitor, 6 experiments were performed. During oxy/deoxy cycling, ChTX increased low-density cell formation by 46% compared with its concurrent Ca++ control, but had no effect on oxy incubation (P > .08).

Inhibition of low-density cell formation by calcium.

(A) To determine the effect of calcium on light cell formation, 7 experiments were performed. During oxy/deoxy cycling, calcium decreased low-density cell formation compared with the concurrent, calcium-free control by 38%. Calcium did not have an effect on the oxy-incubated cells (P > .65). (B) To determine the effect of Ca++ plus 1 μM charybdotoxin, a KCa inhibitor, 6 experiments were performed. During oxy/deoxy cycling, ChTX increased low-density cell formation by 46% compared with its concurrent Ca++ control, but had no effect on oxy incubation (P > .08).

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