“…In humans, the HP locus is polymorphic, with two codominant alleles (HP1 and HP2) that yield three distinct genotypes/phenotypes (Hp1-1, Hp2-1 and Hp2-2) (Sadrzadeh and Bozorgmehr, 2004). Elevated levels of haptoglobin have been demonstrated in lung cancer (Beckman et al, 1986), bladder cancer (Benkmann et al, 1987), leukemia (Mitchell et al, 1988), breast cancer (Awadallah and Atoum, 2004), malignant lymphoma (Epelbaum et al, 1998), urogenital tumors (Dunzendorfer et al, 1980), esophageal squamous cell carcinoma , ovarian cancer (Zhao et al, 2007) and gliomas (Kumar et al, 2010).…”