Certain oral antibiotics are associated with increased risk for colon cancer, while others are linked with reduced rectal cancer risk, according to study results published in Gut.
Cynthia L. Sears, MD, of the Bloomberg-Kimmel Institute for Cancer Immunotherapy at Johns Hopkins University School of Medicine, and colleagues wrote that several previous studies have shown an association between antibiotics and cancer, but they have not explored how that effect is impacted by antibiotic type or tumor location.
“Use of antibiotics, even narrow-spectrum antibiotics, exerts strong, persistent

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