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University of Louisville School of Dentistry researchers have found a bacterial species responsible for gum disease, Porphyromonas gingivalis, is present in 61 percent of patients with esophageal squamous cell carcinoma (ESCC). The findings, published recently in Infectious Agents and Cancer, only detected P. gingivalis in 12 percent of tissues adjacent to the cancerous cells, while this organism was undetected in normal esophageal tissue.
“These findings provide the first direct evidence that P. gingivalis infection could be a novel risk factor for ESCC, and may also serve as a prognostic biomarker for this type of cancer,” said Huizhi Wang, M.D., Ph.D., assistant professor of oral immunology and infectious diseases at the UofL School of Dentistry. “These data, if confirmed, indicate that eradication of a common oral pathogen may contribute to a reduction in the significant number of people suffering with ESCC.”
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