MT-RNR2 and neoplasm: While we did not indicate significant changes in the serum level of humanin protein within the pathological stage of ACC, we revealed that glucose level (R = 0.46, p = 0.017) and patient age (R = 0.06; p = 0.0009) were positively correlated whereas LDL level (R = −0.44; p = 0.065) and tumor size (R = −0.36; p = 0.06) were negatively correlated with humanin serum level.