In the T2DM group, significant correlations were observed between NSE and attention (p = 0.011, r = 0.30); MDA and MoCA total score (p = 0.050, r = −0.234), attention (p = 0.012, r = −0.297); IL‐6 and memory (p = 0.024, r = −0.271); TNF‐α and memory (p = 0.041, r = −0.246) (Table 4). Here, IL6 is linked to type 2 diabetes mellitus.