Yutaka Hirayama

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Nonsteroidal anti-inflammatory drugs (NSAIDs) are known to cause gastric mucosal damage as a side effect. Acetaminophen, widely used as an analgesic and antipyretic drug, has gastroprotective effects against gastric lesions induced by absolute ethanol and certain NSAIDs. However, the mechanisms that underlie the gastroprotective effects of acetaminophen(More)
A young woman with Li-Fraumeni syndrome (LFS) was referred to our hospital. On examination, multiple flat neoplasms were detected in addition to semi-pedunculated polyps. Restorative proctocolectomy was performed; one submucosal invasive cancer, two mucosal cancers, and several adenomas with high-grade dysplasia were detected. On immunohistochemical(More)
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