nearly significantp = 0.07
However, when causative mutations were grouped by the involved exon of MYH9 , mutations of exon 25 (T1155I, T1155A, and R1162T) were associated with a higher prevalence of elevation of both aminotrasferases (p = 0.04) and with a higher level of increase of ALT (p = 0.02); a nearly significant association was observed also for a higher elevation of AST (p = 0.07).