Abstract
Summary
Net inward calcium flux occurs across isolated short-circuited frog skin in the absence of a calcium concentration gradient. Calcium influx and calcium outflux are inversely related to the intermittent open-circuit skin PD but are not a function of short-circuit current. The changes in calcium flux in the hour after PTE administration suggest that PTE increases influx and decreases outflux. PTE and PTH do not alter short-circuit current or skin PD.
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