Sulfation of tracer [^{3}H]E_{1} in the cytosol fraction of zonal hepatocytes (n = 4) and zonal lysates (n = 4) in the presence of the cosubstrate PAPS (700 μM)

↵2-150 Statistically significant from periportal (ANOVA,P < 0.05).

↵2-160 Statistically significant from periportal (pairedt test, P < 0.05).