1.16.3.1 ascites fluid - 438007 1.16.3.1 astrocyte of cortex 689209 1.16.3.1 blood - 437996, 438003, 438006, 438007, 438009, 438011, 438017, 438021, 438022, 438024, 438025, 438032 1.16.3.1 blood retroplacental blood 438008 1.16.3.1 blood venous blood 8 438029 1.16.3.1 blood plasma - -, 696112, 763223 1.16.3.1 blood serum - -, 744016, 744470 1.16.3.1 cell lysate - -, 763203 1.16.3.1 cerebral cortex - 689209 1.16.3.1 cerebrospinal fluid in fluid from patients with Parkinson's disease, Alzheimer's disease, Huntington's disease, a significantly decreased ferroxidase activity is found agreeing with findings of iron deposition in these entities, while free copper is found to be increased in cerebrospinal fluid and appears to be a good biomarker of Parkinson's disease. The sum of nitrites and nitrates as end products of nitric oxide are increased in the degenerative diseases Parkinson's disease, Alzheimer's disease, Huntington's disease and lateral amyotrophic sclerosis and fluorescent lipoperoxidation products in three of them, excepting lateral amyotrophic sclerosis 689179