“…Several recent studies have investigated the association between XRCC3 Thr241Met polymorphism and different types of cancers, but the results are contradictory. Some studies have found that XRCC3 Thr241Met polymorphism is associated with a high risk of cancer, such as glioma, hepatocellular carcinoma, colorectal cancer, breast cancer, head and neck cancer and gastric cancer (Duan et al, 2013;Luo et al, 2013;Kayani et al, 2014;Nissar et al, 2014;Qureshi et al, 2014). Duan and colleagues investigated the role of XRCC3 Thr241Met polymorphism in hepatocellular carcinoma, and reported that the Met/Met and Thr/Met+Met/Met genotypes were significantly associated with hepatocellular carcinoma in a Chinese population (Duan et al, 2013).…”