Significant Increase of Prostaglandin E‐Major Urinary Metabolite in Male Smokers: A Screening Study of Age and Gender Differences Using a Simple Radioimmunoassay

PGE-MUM increases in smokers, as suggested by possible inflammatory injury of pulmonary tissue. This RIA method for PGE-MUM may be thus a sensitive and reliable biomarker for current inflammation, different from serum CRP.