Correction: Modulation of microglial phenotypes improves sepsis-induced hippocampus-dependent cognitive impairments and decreases brain inflammation in an animal model of sepsis

Sepsis was induced by cecal ligation and perforation (CLP), and immediately following surgery animals were treated with IL-4 or GdCl₃. Animals were killed at 24 h, 3 or 10 days after surgery and IBA-1 positive cells were determined in the hippocampus of Sham 24 h (A), 3 (B) and 10 days (C); CLP 24h (D), 3 (E) and 10 days (F); CLP + IL-4 24 h (G), 3 (H) and 10 days (I) and CLP + GdCl₃ 24 h (J), 3 (K) and 10 days (L) by immunohistochemistry. (M) IBA-1 positive cells quantification. Data were expressed as mean ± SD in pg/ml; n = 6 each group. * indicates significant difference from sham; # indicates significant difference from CLP, P <0.05. Original magnification ×40.