TGFB1 and gingival overgrowth: The meta-analysis by Wang et al. [35] analyzed the association between transforming growth factor beta-1 (TGF-ß1) gene polymorphism and CsA induced gingival overgrowth; the authors suggested that the codon 10 polymorphism in TGF-ß1 is not associated with susceptibility to CsA-induced gingival enlargement.