Figure 3: Photomicrographs of liver from C57BL/6 neonates in the group exposed to cigarette smoke during pregnancy (21 days). The color used was periodic acid-Schiff (PAS) which stains glycogen in purple fabric, this way it is possible to identify the deposition of liver glycogen. A) Liver CG with vast storehouse of glycogen. B) Liver ICS21 with decreased glycogen in hepatocytes (head arrows). Arrow: inflammatory cells; Star: central vein; Bar: 20 μm.