TY - JOUR T1 - EVALUATION OF THE OXIDATIVE STRESS IN SILICOSIS PATIENTS AU - Ünal, Kübranur AU - Çakır, Bağdagül AU - Demir Bal, Ceylan AU - Hınç Yılmaz, Ömer AU - Tutkun, Engin AU - Meriç Yılmaz, Fatma PY - 2018 DA - February JF - The Turkish Journal Of Occupational / Environmental Medicine and Safety JO - turjoem PB - Engin TUTKUN WT - DergiPark SN - 2149-4711 SP - 5 EP - 5 VL - 3 IS - 1 LA - en AB - ABSTRACTObjective. Silica particles are potent inducers of cellproliferation, cell injury, and inflammation, and oxidant release from alveolarmacrophages, thus providing a mechanistic framework for their increasedfibrogenicity. The Alveolar macrophages are viewed as a pivotal cell type infibrogenesis in both lung defense and elaboration of growth factors andoxidants. In this study, we aimed to investigate serum TAS(Total Antioxidant Status), TOS (Total Oxidant Status) and OSI (OxidativeStress Index) parameters in the individuals working in ceramic factory anddiagnosed as silicosis and discuss the possible effects of these parameters onthe etiopathogenesis of the disease. Methods.This study was performed on 33 male patients with silicosis (23-73 years)and 30 male healthy control (18-69 years) who were admitted to AnkaraOccupational Diseases Hospital. Silicosis patientswere diagnosed depending on their chest radiograms in accordance with the ILO2000 guidelines. TAS, TOS levels were measured in blood samples and OSIwas calculated according to formula (TOS/TAS).Results.Serum TOS levels of the silicosis subjects were higher than those of thecontrols whereas serum TAS levels of silicosis subjects was lower than those ofthe controls. But the differences between the parameters were not statisticallysignificant. The serum OSI levels were significantly higher (p<0.05) in thesilicosis subjects compared with the control group.Conclusion. Ourstudy showed elevated OSI in patients with silicosis. Increased oxidativestress is thougth to be related with the oxidative burst caused by alveolarmacrophage activation.Keywords.Silicosis, Total AntioxidantStatus, Total Oxidant Status, Oxidative StressConflictof interest: Authors do not have any conflict of interest KW - EVALUATION OF THE OXIDATIVE STRESS IN SILICOSIS PATIENTS CR - 1. American Thoracic Society. 1997. Adverse effects of cyrstalline silica exposure (ATS statement). Am. J. Respir. Crit. Care Med. 155:761– 765. 2. Calhoun, W. J., et al. "Elevated immunoglobulins in the lavage fluid of healthy granite workers." Thorax 41 (1986): 766-773. 3. Green GM, Jakab GJ, Low RB, Davis GS (1977) State of the art: defense mechanisms of the respiratory membrane. Am Rev Respir Dis 115:479-514. 4. Veblen, D. R., and A. G. Wylie. 1993. Mineralogy of amphiboles and 1:1 layer silicates. In G. D. Guthrie, Jr. and B. T. Mossman, editors. Health Effects of Mineral Dusts. Reviews in Mineralogy, Vol. 28. Mineralogical Society of America, Washington, DC. 61–138. 5. Hochella, M. D., Jr. 1993. Surface chemistry, structure, and reactivity of hazardous mineral dust. In G. D. Guthrie, Jr. and B. T. Mossman, editors. Health Effects of Mineral Dusts. Reviews in Mineralogy, Vol. 28. Mineralogical Society of America, Washington, DC. 275– 308. 6. Vallyathan, V., X. Shi, N. S. Dalal, W. Irr, and V. Castranova. 1988. Generation of free radicals from freshly fractured silica dust: potential role in acute silica-induced injury. Am. Rev. Respir. Dis. 138:1213– 1219. 7. Schuyler M, Zisking M, deSalvaggio J (1977) Cell-mediated immunity silicosis. Am Rev Respir Dis 116:147-151. 8. Gibbs, A. R., and J. C. Wagner. 1988. Diseases due to silica. In A. Churg and F. H. Y. Green, editors. Pathology of Occupational Lung Diseases. Igaku-Shoin Medical Publishers, New York. 155–176. UR - https://dergipark.org.tr/tr/pub/turjoem/issue//396602 L1 - https://dergipark.org.tr/tr/download/article-file/427713 ER -