TGFB1 and psychotic disorder: 2022). Although several studies have found elevated plasma levels of TGF‐β in patients with SSD, including those with acute relapses and first‐episode psychosis (Kim et al. 2004; KÖŞger et al. 2020; Miller et al. 2011), these results are contradictory with a recent study of Raschick and colleagues. It was found that elevated levels of TGF‐β1 contribute to better preservation of hippocampal structures, particularly the dentate gyrus, which may be involved in cognitive functions (Raschick et al. 2023).