EGYPTIAN RHEUMATOLOGIST, cilt.38, sa.4, ss.313-317, 2016 (ESCI)
Introduction: Tumor necrosis factor-alpha (TNF-alpha) is an important proinflammatory cytokine playing a key role in the pathogenesis of psoriasis (Ps) and psoriatic arthritis (PsA). TNF alpha gene promoter region single nucleotide polymorphisms (SNPs) affect the clinical course, severity and the response to the treatment.