GRINA and gastric cancer: The correlation analysis between GRINA expression and clinicopathological parameters in gastric cancer demonstrated that GRINA expression was significantly correlated with histological differentiation (P = 0.04), T stage (P = 0.027), N stage (P = 0.03), distant metastasis (P = 0.032), blood vessel invasion (P = 0.04) and perineuronal invasion (P = 0.005), but not with age and gender (Table 1).