MTTP and hepatitis C virus infection: The role of the -493G/T SNP in the MTTP gene associated with hepatitis C has been thoroughly studied, but different results have been reported.24, 25, 26, 27, 28 Akgöllü and Akkız29 evaluated the relationship of the -493G/T SNP with hepatic steatosis in a Turkish population with HCV genotype 1 infection.