TCN1 and colorectal cancer: The TCN1 intronic SNP rs526934 was associated with gastric cancer risk (OR 2.09 [95% CI: 1.25–3.51]) [75] and the risk of colorectal cancer was increased in homozygote subjects with the TCN2 c.776C>G (OR 2.9 [95% CI: 1.1–7.6]) and the c.1026-394T>G (OR 3.1 [95% CI: 1.2–8.2]) variant alleles [95].