This study is the first investigation in Iraq dealing with genotyping of IL-4 -590 (C>T) gene, especially in Iraqi patients with asthma. We studied forty-eight blood samples collected from patients with asthma and compared with age-matched 25 healthy individuals as controls. The polymorphism results of IL-4 -590 (C>T) gene by using amplification refractory mutation system (ARMS-PCR) showed the ...