Kyoungrai Cho

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Diagnosis and treatment of vocal fold lesions has been a long-evolving science for the otolaryngologist. Contemporary practice requires biopsy of a glottal lesion in the operating room under general anesthesia for diagnosis. Current in-office technology is limited to visualizing the surface of the vocal folds with fiber-optic or rigid endoscopy and using(More)
In this study, the effects of oleanolic acid and ursolic acid on MUC5AC mucin production and gene expression induced by epidermal growth factor (EGF) and phorbol 12-myristate 13-acetate (PMA) from human airway epithelial cells were investigated. Confluent NCI-H292 cells were pretreated with each agent for 30 min and then stimulated with EGF and PMA for 24(More)
pharmacological means to inhibit mucin secretion and/or production has become an important approach to regulate the hypersecretion of airway mucus (Mutschler and Derendorf, 1995). Secretion of airway mucin is generally stimulated by various agents. Whereas glucocorticoids inhibit the hypersecretion of airway mucins (Mutschler and Derendorf, 1995; Lee et(More)
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