1 mmol/l amiloride ( but not 0.1 mmol/l amiloride ) in the bath depolarizes the basolateral cell membrane from -63 +/- 1 mv ( n = 24 ) by +16 +/- 1 mv ( n = 16 ) , decreases the apparent potassium transference number from 0.69 +/- 0.02 ( n = 5 ) to 0.36 +/- 0.05 ( n = 5 ) , and significantly impairs volume regulatory decrease without appreciably modifying cell volume in isotonic solutions .
C0002502
amiloride
C0032821
potassium