Of all patients we evaluated, 200 (22%) had normal serum levels of all blood tests, while 695 (78%) exhibited at least one altered serum levels when compared to the reference values of each test - as born out by 35% of the GLU, 21% of ALT, 16% of the COL, 13% of the GGT, 12% of the TGC, 10% of the TB, 9% of the PROT, 9% of the AST, 2% of the AF and 1% of the ALB blood tests. The gene discussed is GPT; the disease is atrial fibrillation.