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The directions of laboratory and clinical studies oriented to experimental confirmation of the priority concept of `laser histochemical surgery' are presented. The goal of the studies is reproduction on experimental model of a number of pathologies (in vivo and in vitro) of the `sensitization to laser radiation by staining' effect. Testing of the histochemical stains as sensitizers to laser irradiation of their `address substrates', i.e. vitally stained intracellular structures which participate in the pathologic processes evolution is under planning. The processes include: (a) metabolic disorders in the brain cells, i.e. disseminated sclerosis; (b) generalized metabolic disorders- -mucopolysaccharidosis and collagenosises (periarteritis nodosa, rheumatism, rheumatoid arthritis, sclerodermia); (3) metabolic disorders in individual organs--vessel atherosclerosis, hypercholesterolemia, myocardial infarction, cardiosclerosis, caries and parodontosis. The conditions of the studies are detailed in the recommendations along the positions: (1) disease name; (2) disease characteristics: (a) pathomorphologic, (b) biochemical; (3) stains revealing the disease signs and recommended for testing; (4) `address substrates' of the stains that are targets for laser radiation; (5) lasers recommended for the testing after the cells staining in vivo in the corresponding pathology; (6) experimental models of the pathologies suggested for the testing; (7) criteria of the stain efficiency as target sensitizer to the laser light (criteria of the `laser sensitization by staining' efficiency). Possible perspectives for the experimental clinical medicine are indicated of common histochemical stains and lasers use and of practice introduction of the `laser histochemical surgery' in the case the described concept is confirmed in experiments and clinically.
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