Serum creatine kinase is elevated in patients with Parkinson's disease: a case controlled study

We report serum creatine kinase (CK) activity level in patients with Parkinson's disease and controls matched with gender and age. The clinical subjects consist of 84 patients with Parkinson's disease and 257 control subjects. Serum CK level was significantly elevated in parkinsonian patients (117.3+/-65.0 units/l) compared to that of the controls (85.1+/-33.2 units/l) (p