臨牀消化器内科 Vol.26 No.1(1)


特集名 膵癌up-to-date
題名 疫学と危険因子
発刊年月 2011年 01月
著者 清水 京子 東京女子医科大学消化器内科
著者 白鳥 敬子 東京女子医科大学消化器内科
【 要旨 】 膵癌の5年生存率は約5%で,ほかの癌と比較しても予後の悪い疾患である.膵癌の危険因子には年齢,遺伝因子,環境因子がある.遺伝性膵癌症候群は膵癌発生リスクが高く,後者はDNA修復機構や細胞周期に関わる遺伝子の生殖細胞変異がその原因となっている.また,膵癌の家族歴,糖尿病,慢性膵炎,肥満,膵管内乳頭粘液性腫瘍,喫煙が膵癌の危険因子である.糖尿病発症2年以内での膵癌の発生リスクがとくに高く,インスリンアナログ,インスリン分泌促進薬による糖尿病治療も膵癌の発生リスクを増加する.
Theme Pancreatic Cancer : Up-to-date
Title Epidemiology and Risk Factors for Pancreatic Cancer
Author Kyoko Shimizu Department of Gastroenterology, Tokyo Womenʼs Medical University
Author Keiko Shiratori Department of Gastroenterology, Tokyo Womenʼs Medical University
[ Summary ] Pancreatic cancer presents one of the worst prognoses of any type of cancer. The 5-year survival rate is only 5%. Risk factors for pancreatic cancer can be classified into three categories:demographic, environmental, and genetic predisposition. Familial pancreatic cancer syndromes linked to germ-line mutation in genes that are responsible for DNA repair or cell-cycle control are associated with an increased risk of pancreatic cancer. A family history of pancreatic cancer, diabetes mellitus, chronic pancreatitis, obesity, intraductal papillary mucinous neoplasms, and smoking significantly increase the risk of developing pancreatitis. New-onset diabetes mellitus (less than 2 years since diagnosis) is often associated with pancreatic cancer. Diabetic patients who have been treated with insulin or insulin secretagogues have a significantly higher risk of pancreatic cancer than diabetic patients who have not been treated with these drugs.
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