C-F Partial (2/3rd) hepatectomy was performed in 45-day-old PR-SET7ΔHepA mice and control littermates (WT). Two weeks later, at postnatal day 60 (P60) liver sections were stained with hematoxylin and eosin (C) or γH2AX (D) or H4K20Me1 (E) or HNF4 and F4/80 (F) antibodies. 