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Hideki Mori,Hidekazu Suzuki 대한소화기 기능성질환∙운동학회 2019 Journal of Neurogastroenterology and Motility (JNM Vol.25 No.1
Proton pump inhibitors are commonly utilized for the treatment of gastric acid-related diseases, such as gastroesophageal reflux disease, peptic ulcer disease, and Helicobacter pylori infection, and for the prevention of low-dose aspirin or nonsteroidal anti-inflammatory drug-induced peptic ulcers. Vonoprazan is a first-in-class potassium-competitive acid blocker, which has distinct advantages compared to other conventional proton pump inhibitors in terms of the efficacy for acid suppression. Due to its strong gastric acid suppression capabilities, vonoprazan serves as an effective drug for the treatment of gastroesophageal reflux disease and H. pylori infection.
The Advantage of an Endoscopic Submucosal Tunneling Technique for Rectal Carcinoid Tumors
( Hideki Kobara ),( Hirohito Mori ),( Li Chei Shintaro Fujihara ),( Noriko Nishiyama ),( Tsutomu Masaki ) 대한간학회 2017 Gut and Liver Vol.11 No.5
Endoscopic treatment can be a curative option for small carcinoid tumors with an extremely low risk of metastasis. Since most carcinoid tumors are characterized by a specific growth pattern in the submucosal (SM) layer, specialized endoscopic techniques for deeper resection to achieve clear vertical margins are needed. The endoscopic submucosal dissection (ESD) method in the SM space is superior to con-ventional endoscopic mucosal resection. However, the stan-dard ESD technique sometimes fails to provide complete deep SM dissection due to insufficient SM lifting. Here, to resolve this problem, we describe our initial experience with an endoscopic SM tunneling technique that is effective for treating rectal carcinoid tumors. (Gut Liver 2017;11:735- 737)
Real-space Imaging of Ferroelectric and Structural Antiphase Domains in Hexagonal YMnO<sub>3</sub>
Keisuke Kobayashi,Hideki Kamo,Kosuke Kurushima,Yoichi Horibe,정상욱,Yoshihiko Togawa,Shigeo Mori 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.7
A high-angle annular-dark-field (HAADF) imaging technique was applied to the investigation of domain wall structures in the ferroelectric phase of hexagonal manganites, YMnO<sub>3</sub>, on an atomic scale. The displacements of the Y<sup>3+</sup> ions along the [001] direction can be clearly visualized. The ferroelectric dipole moments are revealed to be caused by the opposite and unequal displacements of Y<sup>3+</sup> ions. Two types of domain walls should be identified in the ferroelectric domain structures. One is charged longitudinal domain walls with head-to-head or tail-to-tail configurations and the other is non-charged transverse domain walls with head-to-tail configurations. In addition, the ferroelectric and the structural antiphase domains in YMnO<sub>3</sub> change into fragmentary domains because of substitution of Ti<sup>4+</sup> for Mn<sup>3+</sup>, and ferroelectric nanodomains with sizes of 10 - 20 nm are found in the x = 0.30 compound.