Although Zvara’s research reported the over-expression of DRD2 mRNA in PBLs of 13 drug-naive/drug-free schizophrenia patients [3], Yao’s research also found that the difference of DRD2 mRNA levels in PBLs was not statistically significant between 30 first-time hospitalized schizophrenia patients and 26 healthy controls [32], which is similar to our finding. The gene discussed is DRD2; the disease is schizophrenia.