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Increased levels of cyclooxygenase-2 and prostaglandin E2 (PGE2) have been observed in tobacco-related malignancies of the upper aerodigestive tract. Moreover, exposure to tobacco smoke can stimulate the synthesis of PGE2. Recent evidence suggests that urinary PGE metabolite (PGE-M) can be used as an index of systemic PGE2 production. In this study, we investigated whether levels of urinary PGE-M were increased in smokers and in patients with head and neck squamous cell carcinoma (HNSCC).

Levels of Prostaglandin E Metabolite, the Major Urinary Metabolite of Prostaglandin E2, Are Increased in Smokers