title: [On decreasing carcinogenic activity of calcified chrysotile fibers].
abstract: When chrysotile fibers treated with Portland cement, Mg was partially substituted by Ca, therefore monolayer of Ca(OH)2 was formed as a cover, and that changed acidity force, number of active centers and biological activity (absent mutageneity, generation of active oxygen forms by macrophages was characterized by lower maximum and longer time to background level vs. native chrysotile).
authors.forename: L N
authors.initials: LN
authors.lastname: Pylev
authors.forename: L A
authors.initials: LA
authors.lastname: Vasil'eva
authors.forename: O V
authors.initials: OV
authors.lastname: Smirnova
authors.forename: M V
authors.initials: MV
authors.lastname: Agafonova
authors.forename: A I
authors.initials: AI
authors.lastname: Vezentsev
authors.forename: E A
authors.initials: EA
authors.lastname: Gudkova
mesh_terms: D006801:Humans; D006861:Hydrogen Peroxide / Q000009:adverse effects*; D008175:Lung Neoplasms / Q000139:chemically induced / Q000453:epidemiology* / Q000517:prevention & control; D009017:Morbidity / Q000639:trends; D009784:Occupational Diseases / Q000139:chemically induced / Q000453:epidemiology* / Q000517:prevention & control; D016273:Occupational Exposure / Q000009:adverse effects*; D012307:Risk Factors; D012426:Russia / Q000453:epidemiology
chemical_list: C475179:Crystacide; D006861:Hydrogen Peroxide