(A) Representative TUNEL-labeled liver micrographs from Sham (SH) WT or KO mice without (WT, KO) or with GH treatment (WTGH and KOGH); and Bile duct ligation (BDL) WT or KO mice without (WTBDL, KOBDL) or with GH treatment (GHWTBDL and GHKOBDL) (n = 8–10/group). The arrows identify TUNEL + hepatocytes. (B) Bar graph of % TUNEL (+) hepatocytes/100x high power field from WT or KO SH or BDL liver treated with PBS (□) or GH (■) and significant p value. (C-E) Caspase-3 (C), -8 (D) and -9 (E) in WT or KO liver treated with PBS (□) or GH (■) and significant p values. Gene levels were calculated relative to SH WT liver. (F) Representative western blots of Procaspase-8, -9, -3, cleaved proteins and b-Actin in SH or BDL WT and KO liver and the corresponding bar graphs of caspase staining intensity in BDL samples with significant p values.