The toxicity of crystalline silica results from the ability of crystalline silica surfaces to interact with aqueous media, to generate oxygen radicals, and to injure target pulmonary cells such as alveolar macrophages. Generation of inflammatory cytokines (eg, interleukin-1 and tumor necrosis factor beta) by target cells results in cytokine networking between inflammatory cells and resident pulmonary cells, which in turn leads to inflammation and fibrosis.
Silicosis pathophysiology
Silicosis causes
Silicosis risk factors
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Pneumoconiosis pathophysiology
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