2014 Fiscal Year Annual Research Report
小腸疾患のpHに関する検討(pHカプセルを用いて)
Project/Area Number |
25860506
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Research Institution | Yokohama City University |
Principal Investigator |
飯田 洋 横浜市立大学, 医学部, 助教 (80600204)
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Project Period (FY) |
2013-04-01 – 2015-03-31
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Keywords | 消化管 / 小腸 / pH |
Outline of Annual Research Achievements |
本研究のpilot studyは横浜市立大学附属病院の臨床研究倫理委員会において平成21年に「無線式pHモニタリングとカプセル内視鏡を用いたボランティアに対する小腸のpHの観察と検討」の題名で承認され、健常ボランティアにおける小腸の画像とpHを同時に測定できることを証明した(Iida H, Endo H, Sekino Y et al. A New Non-Invasive Modality for Recording Sequential Images and the pH of the Small Bowel. Hepatogastroenterology. 59:413-414.2012)。また、このmodalityは国内特許を出願している(特願2009-234745)。昨年度までに15例を施行しており、これを20例に増やし、健常人の消化管の部位ごとのpH測定と検討を行った。 1988年にEvansraが、「pH sensitive radiotelemetry capsule」を用いて、X線を用いて右下腹部に到達した時点を盲腸と定義し、小腸と大腸のpHを測定し、回腸末端から大腸に入るとpHは下降するとGUTに発表した(D F Evans, G Pye, R Bramley, et al. Measurement of gastrointestinal pH profiles in normal ambulant human subjects. Gut. 1988;29:1035-41)。しかしEvansらの測定では、視覚的に小腸と大腸の境界は明らかでない。そこで、我々の開発した画像とpHを同時に測定できる「pHカプセル」を用いて、回腸末端から大腸にかけてpHが下降することを新たな知見として確認した。
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Research Products
(15 results)
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[Journal Article] Early effects of oral administration of esomeprazole and omeprazole on the intragastric pH.2015
Author(s)
Iida H, Inamori M, Okuno K, Sekino Y, Sakai E, Okubo H, Higurashi T, Endo H, Hosono K, Yoneda M, Koide T, Takahashi H, Goto A, Kubota K, Saito S, Maeda S, Nakajima A, Gotoh E.
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Journal Title
Hepatogastroenterology
Volume: 138
Pages: 493-6
Peer Reviewed / Open Access
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[Journal Article] Ischemic gastritis.2014
Author(s)
Oshima A, Hosono K, Ito S, Sekino Y, Iida H, Nonaka T, Yamanaka S, Nakajima A, Maeda S, Gotoh E, Inamori M.
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Journal Title
Turk J Gastroenterol
Volume: 25
Pages: S289-90
DOI
Peer Reviewed
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[Journal Article] A metastatic melanoma of the small intestine diagnosed by single-balloon enteroscopy.2014
Author(s)
Suzuki K, Akimoto K, Fujisawa N, Koyama S, Tsunemi A, Tanaka M, Sekino Y, Iida H, Nonaka T, Nakajima A, Maeda S, Gotoh E, Inamori M.
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Journal Title
Turk J Gastroenterol
Volume: 25
Pages: S262-3
DOI
Peer Reviewed
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[Journal Article] Percutaneus endoscopic gastrostomy in a patient with hemophilia A.2014
Author(s)
Koide T, Iinuma M, Sakai E, Yamada E, Higurashi T, Ohkubo H, Iida H, Hosono K, Endo H, Nonaka T, Fujita K, Takahashi H, Yoneda M, Goto A, Ida T, Kusakabe A, Nakajima A, Maeda S, Gotoh E, Inamori M.
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Journal Title
Turk J Gastroenterol
Volume: 25
Pages: S241
DOI
Peer Reviewed
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[Journal Article] Low-dose ramosetron accelerates gastric emptying in the early phase: A crossover study in healthy volunteers using a continuous real-time 13C breath test (BreathID System).2014
Author(s)
Inoue S, Sakamoto Y, Sekino Y, Nonaka T, Iida H, Endo H, Koide T, Takahashi H, Maeda S, Nakajima A, Gotoh E, Inamori M.
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Journal Title
Turk J Gastroenterol
Volume: 26
Pages: 123-7
DOI
Peer Reviewed
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[Journal Article] Correlation between gastric transit time measured by video capsule endoscopy and gastric emptying determined by the continuous real-time 13C breath test (BreathID system).2014
Author(s)
Nonaka T, Inamori M, Endo H, Matsuura M, Uchiyama S, Yamada E, Sekino Y, Sakai E, Higurashi T, Ohkubo H, Akimoto K, Iida H, Takahashi H, Koide T, Shibata W, Ida T, Kusakabe A, Gotoh E, Nakajima A, Maeda S.
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Journal Title
Hepatogastroenterology
Volume: 135
Pages: 2159-62
Peer Reviewed / Open Access
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[Journal Article] Effects of ramosetron oral disintegrating tablets on gastric emptying: crossover study using the 13C-acetic acid breath test.2014
Author(s)
Kusakabe A, Nonaka T, Sekino Y, Iida H, Endo H, Koide T, Takahashi H, Fujita K, Yoneda M, Goto A, Gotoh E, Maeda S, Nakajima A, Nosaka C, Inamori M.
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Journal Title
Hepatogastroenterology
Volume: 133
Pages: 1279-82
Peer Reviewed / Open Access
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