dNLR was significantly different in WHO grade II IDH wild-type and IDH mutant gliomas (p-value = 0.0121; median 1.13 and 1.35, respectively) and WHO IV gliomas (p-value 0.0177, median 2.78 and 3.18, respectively) (Figure 5B). Here, IDH1 is linked to central nervous system cancer.