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Immunoblots showing the expression of p-ATMser1981, p53ser15, p-γH2AX, cyclin D1, and DNA polymerase δ human cyrus ginguli Parkinson samples and matched controls. Band intensities were calculated as percentages of the control. Columns and bars represent the mean ± SEM of four control samples and three PD brain samples. Statistical significance was determined by Student’s t test: *p < 0.05, **p < 0.01 versus control
