Figure 4.

Left column (A–D): Cell density (cells/mm³ × 10³) in CA4 (A), CA2/3 (B), CA1 (C), and subiculum (Sub, [D]) of Olig1-positive oligodendrocytes in SZ patients and controls. Columns represent mean cell density, and bars represent standard error of the mean. Light gray columns: left hemisphere; dark gray columns: right hemisphere. Middle column (E–H): Cell density (cells/mm³ × 10³) in CA4 (E), CA2/3 (F), CA1 (G), and Sub (H) of Olig2-positive oligodendrocytes in SZ and controls. Columns represent mean cell density, and bars represent standard error of the mean. Light gray columns: left hemisphere; dark gray columns: right hemisphere. Right column (I–L): Cell density (cells/mm³ × 10³) in CA4 (I), CA2/3 (J), CA1 (K), and Sub (L) of parvalbumin-positive interneurons in SZ and controls. Columns represent mean cell density, and bars represent standard error of the mean. Light gray columns: left hemisphere; dark gray columns: right hemisphere. Increased density of parvalbumin-stained cells in SZ compared to controls was observed in left CA1. *p < 0.05.