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Betel quid (BQ) chewing is popular in Taiwan, India, and many southeast-Asian countries. BQ chewing has strong association with the risk of oral leukoplakia (OL), oral submucous fibrosis (OSF), and oral cancer (OC). BQ components exhibit genotoxicity and may alter the structure of DNA, proteins and lipids, resulting in production of antigenicity. BQ ingredients are also shown to induce keratinocyte...
Previous studies have shown that the local and systemic upregulation of inflammatory and fibrogenic cytokines and downregulation of antifibrotic cytokines are central to the pathogenesis of oral submucous fibrosis (OSF). The immunocompetent cells, especially the macrophages and lymphocytes, are likely the main source of cytokine synthesis. Therefore, this study used an immunohistochemical method to...
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