human fibroblasts that have been serum deprived for 4 hours have a digitoxin-insensitive na influx of 9.5 +/- 1.0 ( n = 4 ) mumol/g prot/min which is not significantly different from the influx of 9.4 +/- 0.6 ( n = 3 ) mumol/g prot/min measured in cells arrested in the g1/g0 state by serum-deprivation for a period of four days .
C0007634
cells
C1517342
arrested