the cells were cryopreserved and stored under liquid nitrogen for intervals of 2 , 4 , 6 , 8 , or 12 wk , then assayed for viability ( using the trypan dye exclusion method as well as the nadh-dependent cytochrome c reductase ( cytochrome c ) assay ) and cellular function ( as documented by the measurement of in vitro aryl hydrocarbon hydroxylase ( ahh ) induction by benzanthracene ( ba ) and by quantitation of pam particulate phagocytosis ) .
C0007634
cells
C0007613
cellular function