Non alkolik seatohepatitte PNPPLA 3/adiponutrin ile APOC3/apolipoprotein C3 gen polimorfizmi ve metabolik sendromla ilişkisi Pnpla3/adiponutrin and APOC3/apolipoprotein C 3 polymorphisms in nonalcoholic steatohepatitis and their relationship with metabolic syndrome