著者
坂本 快郎 市村 隆也 水流添 周 中尾 光善
出版者
一般社団法人 日本老年医学会
雑誌
日本老年医学会雑誌 (ISSN:03009173)
巻号頁・発行日
vol.42, no.2, pp.137-143, 2005-03-25 (Released:2011-03-02)
参考文献数
46
被引用文献数
1 1

老化はヒトを含む全ての生物に共通した生命現象であるとともに, 多くの疾患や病態の発生と関わっている. 近年, DNAメチル化とクロマチンをはじめとするエピジェネティクスの研究が進展して,細胞の老化現象とも密接に関わることが明らかになってきた. 加齢とともにDNAメチル化パターンが徐々に変化する事実からも, 癌や自己免疫疾患, 代謝病, 神経疾患等の発症機序との相関性が注目されている. DNAメチル化検査は技術的に確立されており, 癌の早期診断, 治療薬剤の選択や予後因子に適用されている. さらに, エピジェネティクスを標的とする薬剤開発 (エピジェネティック治療) が提唱されており, 疾患の予防や治療に貢献できる可能性が高まりつつある.
著者
松本 悠 都築 義和 芦谷 啓吾 大庫 秀樹 市村 隆也 佐々木 淳 中元 秀友 今枝 博之
出版者
一般社団法人 日本消化器内視鏡学会 関東支部
雑誌
Progress of Digestive Endoscopy (ISSN:13489844)
巻号頁・発行日
vol.96, no.1, pp.151-153, 2020-06-26 (Released:2020-07-07)
参考文献数
5

Olmesartan has recently been reported as a cause of drug-induced enteropathy characterized by chronic diarrhoea and duodenal mucosal atrophy demonstrating sprue-like enteropathy. 82-year-old, male presented to our hospital because of chronic severe watery diarrhea without abdominal pain or fever. Blood examination showed mild anemia (Hb 11.2 mg/dl). Abdominal contrast-enhanced computed tomography showed mucosal edema in the large intestine. Esophagogastroduodenoscopy showed no villous atrophy in the duodenum with the possibility of pyloric gastrectomy, however, colonoscopy showed villous flattering in the terminal ileum and edematous changes in sigmoid colon. Histopathologic examination in biopsy samples from the terminal ileum and sigmoid colon showed interstitial lymphocytic infiltration. He was treated with olmesartan for hypertension at least two years before the onset of symptoms. In addition, watery diarrhea improved soon after discontinuation of olmesartan. Therefore, he was diagnosed as olmesartan-induced enteropathy. Its pathogenesis remains unclear; however, olmesartan-induced enteropathy must be included in the differential diagnosis for patients with chronic diarrhea after the intake of olmesartan.
著者
大崎 篤史 芦谷 啓吾 大庫 秀樹 山岡 稔 市村 隆也 李 治平 永田 耕治 茅野 秀一 宮川 義隆 山本 啓二 中元 秀友 今枝 博之
出版者
一般社団法人 日本消化器内視鏡学会 関東支部
雑誌
Progress of Digestive Endoscopy (ISSN:13489844)
巻号頁・発行日
vol.87, no.1, pp.160-161, 2015-12-12 (Released:2016-01-06)
参考文献数
10

A 60-oyear-oold male visited a clinic because of gastric discomfort. This symptom was temporarily improved by a proton pump inhibitor, but it was worsened by discontinuation of the drug. He was referred to our hospital. Esophagogastroduodenoscopy showed an elevated lesion with multiple whitish small granular protrusions in the duodenal second portion, occupying two thirds of the circumference. The lesion was diagnosed to be a follicular lymphoma by histopathological examination including immunostaining of the biopsy specimens. He was admitted to our hospital. Abdominal CT scan showed no lymph node metastasis. Capsule endoscopy of the small intestine showed lymphoid follicles in the distal ileum in addition to the duodenal lesion. Bone marrow aspiration showed no invasion of lymphoma cells. This case was diagnosed as stage I according to the Lugano international conference classification. He underwent monotherapy using rituximab four times. However, the lesion did not respond. Therefore, radiotherapy was added which induced regression of the duodenal lesion. Follow-oup capsule endoscopy did not show any lesion in the distal ileum. As long-term outcome after treatment for duodenal follicular lymphoma is not known, strict observation is considered to be necessary.