TNF and acute lymphoblastic leukemia: Although the frequencies of TNF-α-GA and AA genotypes in ALL patients was less than from Takeuchi et al (12) but here, we could find a statistically significant relationship of TNF-α -308 polymorphism was found between ALL patients and control group (P-value= 0.005); Oppositely, Takeuchi et al (12) and Kidas et al (13) did not find any statistically significant relationship between TNF-α -308 polymorphism and ALL patients.