Up-regulation of MUC5AC and MUC5B mucin genes in chronic rhinosinusitis.


BACKGROUND Excess mucus production and hypersecretion characterize upper airway diseases. The primary mechanisms leading to mucus hypersecretion in chronic rhinosinus inflammation are not well understood. Mucus hypersecretion is commonly accompanied by goblet cell and submucosal gland cell hyperplasia. It is important to identify which mucin gene messenger… (More)


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