(2) Change of some blood biochemistry indicators after leukapheresis: (a) Uric acid concentration reduced significantly (P<0, 01) (values before and after leukapheresis are: 402 and 342 µmol / L for males; 296 and 224 µmol / L for females); (b) LDH concentration reduced significantly (values before and after leukapheresis are 2876 and 1482 U / L) (P<0, 01).