Effects of antioxidants on experimental silicosis.

Details

• Personal Author:
  Botoc M ; Gabor S
• Description:
  An investigation was conducted to gain some insight into the protective effects of antioxidant agents on experimentally induced silicosis in male rats. Selenium, vitamin-A and vitamin-E as well as their combinations acted mainly on the course of inflammatory events preceding fibrosis, by trapping the formed free radicals and thereby preventing lipid peroxidation. Zinc impaired mainly collagen synthesis and processing. These results confirmed previously reported protective effects of zinc with respect to induced effects of quartz (14808607) exposure. The results also supported the hypothesis that the peroxidative damage is important as an additional role in the fibrotic action of quartz dust. One of the most significant observations was that under antioxidant treatment, silicotic fibrosis diminished. The authors conclude, therefore, that given correct concentrations, these antioxidants appear to be beneficial as prophylactic and therapeutic agents in silicosis. The applicability of these methods to humans can only be speculative at this time.
• Subjects:
  Accidents, Occupational Education Hazardous Substances Manufacturing And Industrial Facilities Occupational Health Safety Staff Development
• Keywords:
  Body-burden Cell-damage Cell-function Coal-dust Dust-exposure Fibrous-bodies Laboratory-animals Lung-cells Protective-measures Respiratory-system-disorders Silica-dusts Tissue-distribution

  More +
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Conference/Symposia Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  582-591
• NIOSHTIC Number:
  nn:00198467
• Citation:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 90-108, 1990 Sep; (Part I):582-591
• CAS Registry Number:
  Quartz (SiO2) (CAS RN 14808-60-7)
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  False
• Part Number:
  I
• Source Full Name:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f0186ded36af436875b0a8b7c2058c106b3335985d5d13662479a5c9028d59942dc3ded2862d1072622dae3a7888a9660ad241fbad4dd8f003b04189648bcb0f
• Download URL:
  https://stacks.cdc.gov/view/cdc/180530/cdc_180530_DS1.pdf
• File Type:
  [PDF - 257.12 KB ]