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Utsumi S, Tanaka S, Maruyama K, Hatakeyama N, Itoh K, Koike J, Horikawa A, Iriyama H, Kanamaru H, Amako Y, Iiyama T, Futamura R, Kiyanagi R, Nakao A, Moriyama K, Ishikawa Y, Momozawa N. Flux Growth and Magnetic Properties of Helimagnetic Hexagonal Ferrite Ba(Fe 1-x Sc x ) 12O 19 Single Crystals. ACS Omega 2020; 5:24890-24897. [PMID: 33015508 PMCID: PMC7528311 DOI: 10.1021/acsomega.0c03671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
Fabricating large, high-crystalline-quality single-crystal samples of hexagonal ferrite Ba(Fe1-x Sc x )12O19 is the first important step to elucidating its helimagnetic structure and developing it for further applications. In this study, single crystals of Ba(Fe1-x Sc x )12O19 of various Sc concentrations x were successfully grown by the spontaneous crystallization method using Na2O-Fe2O3 flux. We determined the optimal starting composition of reagents for Ba(Fe1-x Sc x )12O19 growth as a function of x. In situ monitoring of the crystal nucleus generation accelerated the success of crystal growth. The obtained crystals comprised black and lamellate structures with a size of 13 mm × 8 mm × 2 mm and a surface of {001} orientation. X-ray diffraction and elemental analysis revealed that the obtained crystals were composed of single-phase Ba(Fe1-x Sc x )12O19 of high crystalline quality. The lattice constants a and c increased linearly with increasing x, thereby following Vegard's law. The temperature dependence of magnetization and the magnetization curves at 77 K of the x = 0.128 crystal exhibited behavior characteristics of helimagnetism. Neutron diffraction measurements of the x = 0.128 crystal exhibited magnetic satellite reflection peaks below 211 K, providing evidence that Ba(Fe1-x Sc x )12O19 behaves as a helimagnetic material.
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Affiliation(s)
- Shigenori Utsumi
- Graduate
School of Engineering and Management, Suwa
University of Science, Chino, Nagano 391-0292, Japan
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Seiya Tanaka
- Graduate
School of Engineering and Management, Suwa
University of Science, Chino, Nagano 391-0292, Japan
| | - Kenichi Maruyama
- Graduate
School of Engineering and Management, Suwa
University of Science, Chino, Nagano 391-0292, Japan
| | - Nao Hatakeyama
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Kenichi Itoh
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Jun Koike
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Akihiro Horikawa
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Hiroki Iriyama
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Hajime Kanamaru
- Faculty
of Engineering, Suwa University of Science, Chino, Nagano 391-0292, Japan
| | - Yasushi Amako
- Faculty
of Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Taku Iiyama
- Faculty
of Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Ryusuke Futamura
- Faculty
of Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Ryoji Kiyanagi
- J-PARC
Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Akiko Nakao
- Neutron
Science and Technology Center, Comprehensive
Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - Kentaro Moriyama
- Neutron
Science and Technology Center, Comprehensive
Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - Yoshihisa Ishikawa
- Neutron
Science and Technology Center, Comprehensive
Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - Nobuyuki Momozawa
- Faculty of
Science and Technology, Tokyo University
of Science, Noda, Chiba 278-8510, Japan
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2
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Morimachi M, Nakahara F, Kaneko M, Mizukami H, Nakamura J, Uchida T, Koike J, Suzuki T, Matsushima M, Mine T. A Case of Mesentero-axial Type of Acute Gastric Volvulus Successfully Reduced by a Balloon-assisted Endoscopy. Tokai J Exp Clin Med 2019; 44:5-8. [PMID: 30963522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/14/2018] [Indexed: 06/09/2023]
Abstract
A 95-year-old man was admitted to the hospital due to a sudden onset of nausea and abdominal pain. Physical examination revealed abdominal distension with mild epigastric tenderness. Computed tomography showed a grossly distended stomach with displacement of the antrum above the esophago-gastric junction, and he was diagnosed with acute mesentero-axial gastric volvulus. We attempted urgent reduction using conventional endoscopy, but failed. He and his family did not want surgery because of his extreme advanced age, and a nasogastric tube was inserted to his stomach for decompression expecting a natural reduction. On the next day, however, it was not improved, so endoscopic reduction was tried again by a balloon-assisted endoscope without an overtube under X-ray fluoroscopy. When the scope reached the descending portion of the duodenum, the balloon on the scope tip was inflated, and the stomach position was reduced by pulling back the scope with twisting to the right. He was discharged from the hospital without any complication, and no recurrence has been observed for 12 months thereafter. We suggest a balloon-assisted endoscope as a useful tool for reduction of gastric volvulus especially in cases of reduction failure by a conventional one.
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Affiliation(s)
- Masashi Morimachi
- Department of Gastroenterology and Hepatology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Uchida T, Matsushima M, Orihashi Y, Dekiden-Monma M, Mizukami H, Nakahara F, Nakamura J, Fujisawa M, Koike J, Suzuki T, Mine T. A Case-control Study on the Risk Factors for Ischemic Colitis. Tokai J Exp Clin Med 2018; 43:111-116. [PMID: 30191546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/05/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE Ischemic colitis (IC) is a relatively common acute inflammation disorder of the intestine. It was considered to be a disorder of elderly people with risk factors for arteriosclerosis; however, a considerable number of young people with IC have been reported recently. We performed a case-control study to determine the risk factors for IC and compare the risk factors between elderly and non-elderly people. METHODS The study included 209 consecutive patients diagnosed with IC between December 2004 and March 2017 at Tokai University Hospital. The study also included 209 randomly selected controls in the same calendar year so as to match age and sex. Possible risk factors for IC were identified and compared between age groups. RESULTS The mean age of IC group was 64.9 with 60 males and 115 elderly patients aged 65 or more in each group. On multivariable conditional logistic regression analysis, drinking, abdominal surgery, hypertension, and malignant diseases were risk factors for IC in all ages. In non-elderly patients, only hypertension and laxative/enema use were significant factors, while in elderly, abdominal surgery, hypertension, COPD, malignant disease and antiplatelet drugs were significant. CONCLUSION The risk factors in elderly people might be quite different from younger ones, while hypertension seemed to be a common risk in all ages.
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Affiliation(s)
| | - Masashi Matsushima
- Department of Internal Medicine (gastroenterology), Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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4
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Tsuda S, Matsushima M, Suzuki T, Kawanishi A, Carreras J, Nakamura J, Tsukune Y, Uchida T, Koike J, Igarashi M, Mine T, Imai Y. A Case of Pedunculated Esophageal Leiomyoma Successfully Treated by Endoscopic Mucosal Resection. Tokai J Exp Clin Med 2017; 42:121-125. [PMID: 28871579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
Leiomyoma is one of the most commonly observed esophageal submucosal tumors, often appearing as a smooth-surfaced and semicircular protruded lesion. It sometimes grows toward the esophageal lumen and may be pedunculated in rare cases. We encountered a case of a pedunculated esophageal submucosal tumor diagnosed before treatment as a leiomyoma originating in the muscularis mucosae of a 68-year-old man. As the tumor arose in the muscularis mucosae, it could be safely resected via an endoscopic procedure. Only one case of pedunculated leiomyoma has been reported to date, and we herein report the second case, which was successfully treated by a minimally invasive endoscopic technique.
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Affiliation(s)
- Shingo Tsuda
- Departments of Internal Medicine (Gastroenterology), Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Hasegawa H, Okabayashi K, Tsuruta M, Koike J, Funahashi K, Yokomizo H, Yoshimatsu K, Kan H, Yamada T, Ishida H, Ishibashi K, Saida Y, Enomoto T, Katsumata K, Koda K, Ochiai T, Sakamoto K, Ogawa S, Itabashi M, Kameoka S. Updated survival results of FACT trial: Multicenter phase II trial of neoadjuvant chemotherapy with mFOLFOX6 for stage II/III rectal cancer with a T3/T4 tumor. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Objective: To evaluate the effectiveness of home-visit rehabilitation. Design: Before/after trial. Setting: Home-visit rehabilitation in Yokohama city. Subjects: Four hundred and seventy-five of 601 cases that received services during 1992, and 141 of 186 cases that received sequential visits. Interventions: Comprehensive home-visit rehabilitation. Main outcome measures: (1) Carer's response on change in care burden; (2) improvement in personal care performance. Results: Care burden decreased in 40.8% of 475 subjects. All of the 141 cases that received sequential visits gained proficiency in personal care. Conclusion: Improved performance of daily activities and reduction of care burden were found for most subjects after the rehabilitation visits.
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Affiliation(s)
- A. Hakuno
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center — 'Rainbow Kawasaki', Center for the Severely Physically Handicapped People in Kawasaki, 5-8-10 Higashi-Arima, Miyamaeku Kawasaki, Japan 216
| | - T. Ito
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center
| | - J. Koike
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center
| | - T. Matsuba
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
| | - S. Watanabe
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
| | - S. Fujii
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
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Shindo S, Sutou Y, Koike J, Saito Y, Song YH. Effect of surface cleaning on contact resistivity of amorphous GeCu2Te3 to a W electrode. ACTA ACUST UNITED AC 2016. [DOI: 10.1557/adv.2016.310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Imai J, Suzuki T, Yoshikawa M, Dekiden M, Nakae H, Nakahara F, Tsuda S, Mizukami H, Koike J, Igarashi M, Yabe H, Mine T. Fatal Hemorrhagic Gastrointestinal Angioectasia after Bone Marrow Transplantation for Dyskeratosis Congenita. Intern Med 2016; 55:3441-3444. [PMID: 27904106 PMCID: PMC5216140 DOI: 10.2169/internalmedicine.55.7462] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Dyskeratosis congenita (DC) is a rare inherited disease in which the telomere complex cannot be maintained. Shortened telomeres can cause a number of clinical conditions. We herein report a case of unrelated bone marrow transplantation due to aplastic anemia associated with DC. The patient died of uncontrollable refractory intestinal bleeding. Three cases of DC with life-threatening hemorrhaging after transplantation have been reported; however, the bleeding origin could not be determined. Our case is the only patient in which a gastrointestinal bleeding point, jejunal multiple angioectasia, was determined.
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Affiliation(s)
- Jin Imai
- Department of Gastroenterology, Tokai University School of Medicine, Japan
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9
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Suzuki T, Matsushima M, Masui A, Tsuda S, Imai J, Nakamura J, Tsukune Y, Uchida T, Yuhara H, Igarashi M, Koike J, Mine T. Irsogladine maleate and rabeprazole in non-erosive reflux disease: A double-blind, placebo-controlled study. World J Gastroenterol 2015; 21:5023-5031. [PMID: 25945018 PMCID: PMC4408477 DOI: 10.3748/wjg.v21.i16.5023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 12/09/2014] [Accepted: 02/12/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the efficacy of adding irsogladine maleate (IM) to proton-pump inhibitor (PPI) therapy in non-erosive reflux disease (NERD) treatment.
METHODS: One hundred patients with NERD were recruited and randomized to receive rabeprazole plus IM (group I) or rabeprazole plus placebo (group P). The efficacy of the treatment was assessed using the Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease (FSSG) and the short form (SF)-36 quality of life questionnaires after four weeks of treatment. We also assessed whether patients with NERD with minimal changes (grade M) had different responses to the therapies compared with patients who did not have minimal changes (grade N).
RESULTS: Group I and group P showed significant improvements in their FSSG scores after the treatment (from 17.9 ± 7.9 to 9.0 ± 7.6, and from 17.7 ± 7.3 to 11.2 ± 7.9, respectively, P = 0.0001), but there was no statistically significant difference between the FSSG scores in group I and those in group P. Subgroup analysis showed that significant improvements in the FSSG scores occurred in the patients in group I who had NERD grade N (modified Los Angeles classification) (7.8 ± 7.4 vs 12.5 ± 9.8, P = 0.041). The SF-36 scores for patients with NERD grade N who had received IM and rabeprazole were significantly improved in relation to their vitality and mental health scores.
CONCLUSION: The addition of IM to rabeprazole significantly improves gastroesophageal reflux disease symptoms and the quality of the lives of patients with NERD grade N.
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Yokomizo H, Yoshimatsu K, Koike J, Funahashi K, Kan H, Yamada T, Ishida H, Ishibashi K, Saida Y, Enomoto T, Katsumata K, Hasegawa H, Koda K, Ochiai T, Sakamoto K, Nakayama M, Naritaka Y, Ogawa S, Itabashi M, Kameoka S. Multicenter Phase Ii Trial of Neoadjuvant Chemotherapy with Mfolfox6 for Stage Ii/Iii Rectal Cancer with a T3/T4 Tumor Fact Trial. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
PURPOSE We outline the development of a reliable model of obstructive uropathy in fetal lambs highlighting our understanding of the critical time points for interventions and the variability of any such model. We identify some discoveries that may have clinical implications. METHODS The model requires 60-day-gestation fetal lambs. In lambs, glomerulogenesis is complete by 90 days gestation. (Term is 145 days.) The ability to develop a reliable method of creating bladder outlet obstruction in females, ligating both the urethra and urachus was critical. The lambs are bred to an accuracy of ±24 h. RESULTS Creating the model at 50-60 days gestation, produces different expressions of renal dysplasia in groups of lambs undergoing identical interventions at the same stage of gestation. Early complete urethral obstruction can produce the Potter phenotype. An appropriately timed vesico-amniotic shunt preserves renal development, producing a shrunken, non-compliant bladder. Shunting the normal fetal bladder at 80 days gestation produces a similar bladder. Provision of a low-pressure valve in the shunt preserves bladder development and compliance. Using a high-pressure shunt produces results similar to non-shunted lambs. DISCUSSION We developed a reliable animal model for obstructive uropathy. Being alert to peripheral results can lead to new findings.
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Affiliation(s)
- K C Pringle
- Department of Obstetrics and Gynaecology, School of Medicine and Health Sciences, University of Otago, Wellington, P.O. Box 7343, Wellington South, 6242, Wellington, New Zealand,
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Tsuruya K, Matsushima M, Nakajima T, Fujisawa M, Shirakura K, Igarashi M, Koike J, Suzuki T, Mine T. Malignant peritoneal mesothelioma presenting umbilical hernia and Sister Mary Joseph’s nodule. World J Gastrointest Endosc 2013; 5:407-411. [PMID: 23951397 PMCID: PMC3742707 DOI: 10.4253/wjge.v5.i8.407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/11/2013] [Accepted: 07/19/2013] [Indexed: 02/05/2023] Open
Abstract
Malignant peritoneal mesothelioma is a rare aggressive tumor of the peritoneum. An increasing number of malignant mesothelioma cases have been reported in recent years. We report here a very rare case of malignant peritoneal mesothelioma with both umbilical hernia and umbilical metastasis which is also called Sister Mary Joseph’s nodule. We performed laparoscopy which showed specific laparoscopic findings, and the pathological findings of the biopsy specimen led to the diagnosis. This case was associated with umbilical hernia which could be induced by massive ascites. A newly developed abdominal hernia should be noted as a primary symptom of malignant peritoneal mesothelioma, as shown in the present case.
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Yuhara H, Steinmaus C, Corley D, Koike J, Igarashi M, Suzuki T, Mine T. Meta-analysis: the risk of venous thromboembolism in patients with inflammatory bowel disease. Aliment Pharmacol Ther 2013; 37:953-62. [PMID: 23550660 DOI: 10.1111/apt.12294] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 01/26/2013] [Accepted: 03/11/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), is a systemic disorder that predominantly affects the bowels but is also associated with venous thromboembolism (VTE). AIM To provide a quantitative assessment of the association of IBD with venous thromboembolism risk and to explore the possible sources of heterogeneity in the current literature, a meta-analysis of case-control and cohort studies was conducted. METHODS Studies were identified by a literature search of the PubMed and Scopus databases (from inception inclusive 31 December 2012) for English language studies. Summary relative risks (RRs) with 95% confidence intervals (CIs) were calculated with fixed- and random-effects models. Several subgroup analyses were performed to explore potential study heterogeneity and bias. RESULTS Eleven studies met our inclusion criteria. The summary RR for deep venous thromboembolism (DVT) and pulmonary embolism (PE) comparing subjects both with and without IBD was 2.20 (95% CI 1.83-2.65). After adjusting for obesity and smoking, summary relative risks near 2.0 were seen for venous thromboembolism in both UC and CD patients. CONCLUSION This meta-analysis showed that inflammatory bowel disease is associated with an approximately two-fold increase in the risk of venous thromboembolism.
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Affiliation(s)
- H Yuhara
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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14
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Suzuki T, Matsushima M, Arase Y, Fujisawa M, Okita I, Igarashi M, Koike J, Mine T. Double-balloon endoscopy-diagnosed multiple small intestinal ulcers in a Churg-Strauss syndrome patient. World J Gastrointest Endosc 2012; 4:194-6. [PMID: 22624072 PMCID: PMC3355243 DOI: 10.4253/wjge.v4.i5.194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 09/12/2011] [Accepted: 03/30/2012] [Indexed: 02/05/2023] Open
Abstract
Churg-Strauss syndrome (CSS) is a systemic vascular disorder characterized by severe bronchial asthma, hypereosinophilia, and allergic rhinitis. Small intestinal ulcers associated with CSS are a relatively rare manifestation that causes gastrointestinal bleeding. Multiple deep ulcers with an irregular shape are characteristic of small intestinal involvement of CSS. Video-capsule-endoscopy (VCE), double-balloon endoscopy (DBE) and Spirus assisted enteroscopy have been developed recently and enabled observation of the small intestine. In this case report, we have described a patient with CSS who had multiple deep ulcers in the jejunum detected by oral DBE. Since severe gastrointestinal (GI) involvement has been identified as an independent factor associated with poor outcome, the careful investigation of GI tract must be needed for CSS patients with GI symptoms. We describe the usefulness of DBE for diagnosis of small intestinal ulcers in patient with CSS.
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Affiliation(s)
- Takayoshi Suzuki
- Takayoshi Suzuki, Masashi Matsushima, Yoshitaka Arase, Mia Fujisawa, Ichiro Okita, Muneki Igarashi, Jun Koike, Tetsuya Mine, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
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15
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Deguchi R, Nakaminami H, Rimbara E, Noguchi N, Sasatsu M, Suzuki T, Matsushima M, Koike J, Igarashi M, Ozawa H, Fukuda R, Takagi A. Effect of pretreatment with Lactobacillus gasseri OLL2716 on first-line Helicobacter pylori eradication therapy. J Gastroenterol Hepatol 2012; 27:888-92. [PMID: 22098133 PMCID: PMC3504346 DOI: 10.1111/j.1440-1746.2011.06985.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM Helicobacter pylori eradication clearly decreases peptic ulcer recurrence rates. H. pylori eradication is achieved in 70-90% of cases, but treatment failures due to poor patient compliance and resistant organisms do occur. Lactobacillus gasseri can suppress both clarithromycin-susceptible and -resistant strains of H. pylori in vitro. The aim of this study was to determine the effect of pretreatment with L. gasseri- containing yogurt on H. pylori eradication. We conducted a randomized, controlled clinical trial in patients with H. pylori infection. METHODS A total of 229 patients were randomized into either a 1-week triple therapy of rabeprazole (10 mg bid), amoxicillin (750 mg bid), and clarithromycin (200 mg bid) or triple therapy plus L. gasseri-containing yogurt. In the yogurt-plus-triple therapy groups, yogurt containing L. gasseri OLL2716 (112 g) was given twice daily for 4 weeks (3 weeks pretreatment and also 1 week during eradication therapy). Clarithromycin resistance was determined by the detection of a mutation in 23S rRNA using nested polymerase chain reaction and the direct sequencing of DNA from pretreatment feces. H. pylori eradication was diagnosed based on the urea breath test and a stool antigen test after 8 weeks of eradication. RESULTS The status of H. pylori susceptibility to clarithromycin was successively determined in 188 out of 229 samples. The rate of infection with clarithromycin-resistant strains of H. pylori was 27.1%. Overall eradication (intention to treat/per protocol) was 69.3/74.5% for the triple-only group, and 82.6/85.6% for the yogurt-plus-triple group (P = 0.018/P = 0.041). Eradication of primary clarithromycin-resistant strains tended to be higher for yogurt-plus-triple therapy than triple-only therapy (38.5 vs 28.0%, respectively, P = 0.458). CONCLUSION This study confirmed that the major cause of treatment failure is resistance to clarithromycin. A 4-week treatment with L. gasseri-containing yogurt improves the efficacy of triple therapy in patients with H. pylori infection.
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Affiliation(s)
- Ryuzo Deguchi
- Gastroenterology, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Hidemasa Nakaminami
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life ScienceHorinouchi, Hachioji, Tokyo, Japan
| | - Emiko Rimbara
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life ScienceHorinouchi, Hachioji, Tokyo, Japan
| | - Norihisa Noguchi
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life ScienceHorinouchi, Hachioji, Tokyo, Japan
| | - Masanori Sasatsu
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life ScienceHorinouchi, Hachioji, Tokyo, Japan
| | - Takayoshi Suzuki
- Gastroenterology, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Masashi Matsushima
- Gastroenterology, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Jun Koike
- Gastroenterology, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Muneki Igarashi
- Gastroenterology, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Hideki Ozawa
- General Internal Medicine, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Ryuki Fukuda
- General Internal Medicine, Tokai University School of MedicineIsehara, Kanagawa, Japan
| | - Atsushi Takagi
- General Internal Medicine, Tokai University School of MedicineIsehara, Kanagawa, Japan
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Suzuki T, Matsushima M, Tsukune Y, Fujisawa M, Yazaki T, Uchida T, Gocyo S, Okita I, Shirakura K, Sasao K, Saito T, Sakamoto I, Igarashi M, Koike J, Takagi A, Mine T. Double-balloon endoscopy versus magnet-imaging enhanced colonoscopy for difficult colonoscopies, a randomized study. Endoscopy 2012; 44:38-42. [PMID: 22143991 DOI: 10.1055/s-0030-1256875] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND STUDY AIMS Studies have estimated that failure of cecal intubation occurs with conventional colonoscopy in up to 10 % of cases. Double-balloon endoscopy (DBE) systems, magnetic endoscope imaging (MEI), and transparent cap have been shown to improve success rates for colonoscopy. This study evaluated the utility of DBE for complete examination of the colon compared with MEI plus cap (MEI-Cap) after incomplete or technically difficult colonoscopy in a randomized comparative manner. PATIENTS AND METHODS A total of 94 patients with incomplete or technically difficult colonoscopy were randomly assigned to receive either DBE (n = 47) or colonoscopy with MEI-Cap (n = 47). The primary end point was cecal intubation rate within 30 minutes. Secondary end points included intubation time, pain score using a visual analog scale, abdominal pressure attempts, doses of sedative medication, and changes in patient position during colonoscopy. RESULTS Patient characteristics were comparable in both groups. Cecal intubation rate within 30 minutes was significantly higher for DBE (45 /47, 95.7 %) than for MEI-Cap (34 /47, 72.3 %) (P = 0.0049). Mean time to reach the cecum was significantly lower in the DBE group (13.0 ± 5.3 minutes) than in the MEI-Cap group (16.4 ± 4.8 minutes; P = 0.0003). No complications were encountered in either group. CONCLUSION DBE is more useful for complete examination of the colon than MEI-Cap in patients with incomplete or technically difficult colonoscopy.
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Affiliation(s)
- T Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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Matsushima M, Suzuki T, Nakajima T, Arase Y, Tsukune Y, Fujisawa M, Uchida T, Shirakura K, Igarashi M, Koike J, Mine T, Kanari Y, Aoki H. Emergency upper gastrointestinal endoscopy in the Emergency Room of Tokai University Hospital. Tokai J Exp Clin Med 2011; 36:47-52. [PMID: 21769773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 06/06/2011] [Indexed: 05/31/2023]
Abstract
The Tokai University Hospital is the only tertiary emergency hospital in the western region of Kanagawa prefecture and treats many patients; for example, more than 7,000 cases (including 297 helicopter-transfer cases) were transferred to the Emergency Room (ER) of the hospital in 2008. In cases where an emergency endoscopy is necessary, such as suspected upper gastrointestinal (UGI) tract bleeding, the gastroenterologists and the ER staff collaborate on patient care, diagnosis and treatment. The purpose of this study was to summarize such cases in the hospital and to elucidate the possible problems that such collaboration may cause, by means of a questionnaire completed by both the gastroenterology and the ER staff. There were 366 emergency upper GI endoscopies performed in the ER from April 2007 to October 2009, which included 163 hemostasis, 8 foreign body retrievals and 195 observation-only cases. After arrival of the patients, first the ER staff took care of them, then the gastroenterologist was called and both collaborated on the procedures to be implemented. The questionnaires revealed that, generally speaking, the collaboration worked well, but there were several problems that needed to be solved including maintenance, equipment supply and assistance of therapeutic endoscopy.
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Affiliation(s)
- Masashi Matsushima
- Department of Internal Medicine (Gastroenterology), Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193 Japan.
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18
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Bracero LA, Seybold DJ, Koike J. Prenatal Diagnosis of Spontaneous Bladder Rupture in a Female Fetus. Urology 2011; 77:1474-6. [DOI: 10.1016/j.urology.2010.07.500] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 07/27/2010] [Accepted: 07/29/2010] [Indexed: 11/17/2022]
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19
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Koike J, Oluzzi DE, Meshii M, Okamoto PR. Temperature Dependence of Amorphization above 10K in the CuTi Intermetallic Compound Under Electron Irradiation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-74-425] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe critical dose required to amorphize the crystalline compound CuTi during irradiation with 1 MeV electrons has been investigated from 10 to 288 K. The results show that above a critical temperature (Tc) of about 185 K, CuTi remains crystalline and only defect clusters are formed. Below Tc, amorphization occurs with no observable cluster formation. The critical dose for amorphization was found to be temperature dependent below Tc: as the irradiation temperature increases, a higher dose is required to induce amorphization. This observation supports the concept that Tc corresponds to the vacancy migration temperature. Below Tc, interstitial migration may contribute to the observed reduction in the amorphization rate with increasing temperature.
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Koike J, Okamoto PR, Rehn LE, Bhadra R, Grimsditch MH, Meshh M. Irradiation-Induced Amorphization and Elastic Shear Instability in Intermetallic Compounds. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-157-777] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTPreviously we reported a substantial (∼ 50 %) decrease in shear modulus prior to amorphization in Kr irradiated Zr3Al, and proposed that amorphization is triggered when the crystalline lattice becomes unstable against shear stress. In the present work, the relation between amorphization and shear elastic instability has been investigated in two additional compounds (FeTi and NiAl) during room temperature irradiation with 1.7-MeV Kr+. A shear modulus was measured using Brillouin scattering; structural information was obtained in situ in a high voltage electron microscope interfaced to a tandem accelerator.During irradiation of FeTi, chemical disordering and a large (∼40 %) decrease of shear modulus were observed, and an amorphous phase developed subsequently. In contrast, NiAl remained crystalline and chemically ordered during irradiation, and exhibited only a ∼ 10 % decrease in shear modulus. Hence, these two results provide further support that a shear instability triggers irradiation-induced amorphization. The shear instability mechanism may also apply to other solid-state amorphization techniques, e.g. hydrogen charging and mechanical deformation.
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Abstract
ABSTRACTThermal cycling was performed in Al-lmo%Si thin films deposited on Si wafers. After a given number of cycling between room temperature and 723 K, residual stress was measured at room temperure. Residual stress was found to increase with increasing the cycling number up to the 4th cycle, followed by further a continuous decrease by further cycling. The intial increase was found to be related to the increase of lattice dislcocations and their tangling. The following decrease was caused by crack formation along grain boundaties or by film delamination in some cases.
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Igarashi M, Tei Y, Akino F, Tajima H, Ushiyama A, Watanabe S, Koike J, Kurumada T, Mine T. A patient with obstructive jaundice due to bleeding in the common bile duct after ultrasound-guided liver biopsy. Tokai J Exp Clin Med 2010; 35:107-111. [PMID: 21319037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 07/05/2010] [Indexed: 05/30/2023]
Abstract
A-63-year-old man was referred to our hospital for interferon therapy to treat chronic hepatitis C. The patient complained of right upper abdominal pain 1 hour after the ultrasound-guided liver biopsy. Bleeding in the gallbladder and the common bile duct were found on emergency CT. Obstructive jaundice due to the common bile duct hematoma was diagnosed, and endoscopic retrograde cholangiopancreatography(ERCP) was performed, and a filling defect thought to be a hematoma was seen in the bile duct on cholangiography. The hematoma in the bile duct was extracted after endoscopic sphincteroyomy.
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Affiliation(s)
- Muneki Igarashi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Tokai School of Medicine, Bouseidai, Isehara, Kanagawa 259-1193, Japan.
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23
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Koike J, Matsushima M, Teraoka H, Igarashi M, Deguchi R, Suzuki T, Shirai T, Mine T. A case of submucosal hematoma of the esophagus and stomach, possibly caused by fish bone ingestion. Tokai J Exp Clin Med 2010; 35:46-56. [PMID: 21319026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Accepted: 02/02/2010] [Indexed: 05/30/2023]
Abstract
Submucosal hematoma of the esophagus is a rare disorder. We encountered a 70-year-old woman with an extremely large submucosal hematoma of the esophagus that extended from the cervical esophagus to the gastric angle. It was likely that her hematoma was caused by accidental ingestion of a fish bone, and her condition improved with conservative treatment alone. In this article, we summarize the reported cases of submucosal hematoma of the esophagus in Japan, and discuss the case with a review of the literature.
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Affiliation(s)
- Jun Koike
- Division of Gastroenterology, Department of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193 Japan.
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Deguchi R, Sakuma T, Ogasawara F, Takashimizu S, Koike J, Mine T, Iwata Y. Endoscopic examination for duodenal ulcer bleeding during transcatheter arterial embolization: analysis of two cases. Tokai J Exp Clin Med 2009; 34:156-163. [PMID: 21319017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Accepted: 11/13/2009] [Indexed: 05/30/2023]
Abstract
Endoscopy is usually effective in treating duodenal ulcer bleeding, but depending on the lesion site and overall patient condition, hemostasis may be difficult to achieve with endoscopy alone. We described two patients with duodenal ulcer bleeding in whom endoscopic hemostasis was difficult. Immediately after transcatheter arterial embolization, endoscopic examination was used to confirm hemostasis and completing of the angiographic procedures.
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Affiliation(s)
- Ryuzo Deguchi
- Department of Gastroenterology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Ariga K, Vinu A, Ji Q, Ohmori O, Hill J, Acharya S, Koike J, Shiratori S. A Layered Mesoporous Carbon Sensor Based on Nanopore-Filling Cooperative Adsorption in the Liquid Phase. Angew Chem Int Ed Engl 2008; 47:7254-7. [DOI: 10.1002/anie.200802820] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ariga K, Vinu A, Ji Q, Ohmori O, Hill J, Acharya S, Koike J, Shiratori S. A Layered Mesoporous Carbon Sensor Based on Nanopore-Filling Cooperative Adsorption in the Liquid Phase. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802820] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lao M, Koike J, Chauhan S, Schiano M, Plata M. Struma Ovarii with a focus of follicular variant of papillary thyroid cancer: a case report. W V Med J 2008; 104:12-14. [PMID: 18646677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Struma Ovarii is a mature ovarian teratoma that consists mainly of thyroid tissue. Mature cystic teratomas may contain small amounts of thyroid tissue. Carcinomatous change in Struma Ovarii is extremely rare. No guidelines exist regarding the staging and treatment of malignant Struma Ovarii. OBJECTIVES To report a case of Struma Ovarii with a focus follicular variant papillary thyroid cancer. CASE A 36 year old nulligravid patient presented with a pelvic mass palpated on her routine annual exam. Struma Ovarii with a focus of follicular variant of papillary thyroid cancer was diagnosed during the subsequent laparoscopy and ovarian cystectomy. INTERVENTION She then underwent a staging laparotomy, total hysterectomy, bilateral salpingoophorectomy, and infracolic omentecomy. FOLLOW-UP Tumor markers, thyroid studies, thyroid scan, and whole body scans were normal. CONCLUSION Optimal treatment and surveillance of malignant struma ovarii has yet to be determined.
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Affiliation(s)
- Michael Lao
- Department of Obstetrics and Gynecology, West Virginia University/ Women and Children's Hospital Charleston Area Medical Center, USA
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28
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Suzuki T, Matsushima M, Shirakura K, Koike J, Masui A, Takagi A, Shirasugi Y, Ogawa Y, Shirai T, Mine T. Association of inflammatory cytokine gene polymorphisms with platelet recovery in idiopathic thrombocytopenic purpura patients after the eradication of Helicobacter pylori. Digestion 2008; 77:73-8. [PMID: 18354254 DOI: 10.1159/000121392] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2007] [Accepted: 12/26/2007] [Indexed: 02/04/2023]
Abstract
BACKGROUND Idiopathic thrombocytopenic purpura (ITP) is associated with the cytokine response and dysregulation of the cytokine network. Gene polymorphisms of proinflammatory cytokines are associated with several diseases including ITP. Recently, the successful eradication of Helicobacter pylori has been reported to improve the platelet counts in some patients with ITP. The aim of this study was to elucidate the relationship between cytokine gene polymorphisms and platelet recovery in ITP patients after the eradication of H. pylori. MATERIALS AND METHODS Gastric H. pylori infection was confirmed using a culture method or specific IgG antibodies against H. pylori in the serum. Thirty-six adult H. pylori-positive ITP patients received antibiotic therapy for H. pylori. The response to treatment was defined as complete response (CR) if the platelet count was above 150 x 10(3)/microl and partial response (PR) if the platelet count increased by more than 50 x 10(3)/mul above the pretreatment count. Genomic DNA was extracted from peripheral blood and polymorphisms in IL-1B (-31, -511), IL-1RN (long or short), TNFA (-308) and TNFB (+252) were analyzed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS Of the 36 ITP patients, twenty patients (responders) exhibited a platelet response after successful H. pylori eradication therapy, but the other patients (nonresponders) did not. There were no statistical differences in the frequencies of polymorphisms in IL-1B, IL-1RN and TNFA genes between responders and nonresponders. In contrast, the frequency of responders in ITP patients with the TNFB G/G or G/A genotype was significantly higher (69.6%) than that with the TNFB A/A genotype (30.8%). CONCLUSION The TNFB (+252) G/G or G/A genotype may therefore be a good predictor of platelet recovery in ITP patients after the eradication of H. pylori.
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Affiliation(s)
- Takayoshi Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan.
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Nagata N, Asai S, Gocho S, Shirakura K, Koike J, Suzuki T, Watanabe N, Shirai T, Minemura T, Mine T, Miyachi H. Ultrasonographic diagnosis of adult intussusception caused by pedunculated colon carcinoma. Tokai J Exp Clin Med 2008; 33:39-41. [PMID: 21318963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/20/2007] [Accepted: 02/01/2008] [Indexed: 05/30/2023]
Abstract
Adult intussusception is clinically rare. We report a case with colon intussusception caused by a pedunculated polyp of the sigmoid colon in a 54-year-old male. Abdominal ultrasonographic screening for hematochezia showed intussusception in the sigmoid colon, demonstrating a multiple concentric ring sign and a mobile leading colon polyp. Histological examination of a biopsy specimen of the polyp revealed adenoma. This report suggests that ultrasound imaging is a modality of choice for differential diagnosis of intestinal intussusception with hematochezia in adults.
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Affiliation(s)
- Naruhiko Nagata
- Department of Internal Medicine, Division of Gastroenterology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Funahashi K, Koike J, Okamoto K, Kurihara A, Saito N, Ushigome M, Shirasaka K, Arai K, Teramoto T. 384 POSTER Peranal rectal dissection (PARD)-technique to avoid incomplete TME at total laparoscopic low anterior resection. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70819-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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31
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Okuse C, Yotsuyanagi H, Yamada N, Ikeda H, Takahashi H, Suzuki M, Kondo S, Kimura K, Koike J, Itoh F. Successful treatment of hepatitis B virus-associated membranous nephropathy with lamivudine. Clin Nephrol 2006; 65:53-6. [PMID: 16429843 DOI: 10.5414/cnp65053] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We present a case of chronic hepatitis B with membranous nephropathy, that was improved by lamivudine treatment. A 37-year-old man was admitted to our hospital for the evaluation of proteinuria. He was diagnosed as having chronic glomerulonephritis associated with chronic hepatitis B. Histopathological findings of the renal biopsy specimen indicated membranous nephropathy. He suffered from nephrotic syndrome associated with leg edema, which was parallel to the exacerbation of hepatitis. Lamivudine was started for the treatment of hepatitis, which caused the disappearance of serum hepatitis B virus DNA and the normalization of ALT level in 4 weeks. Additionally, proteinuria disappeared 120 weeks after the treatment was started. Lamivudine treatment may remit HBV-associated nephropathy.
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Affiliation(s)
- C Okuse
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan.
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Nakagawa M, Seki M, Koike J, Kanai T. Gastric tube-to-pleural fistula seventeen months after esophagectomy: successful endoscopic treatment of an unusual complication. Jpn J Thorac Cardiovasc Surg 2005; 53:569-72. [PMID: 16279590 DOI: 10.1007/s11748-005-0070-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A gastric tube-to-pleural fistula is an uncommon late complication of esophagectomy. In this report, a 71-year-old man who developed gastric tube-to-pleural fistula 17 months after esophagectomy with intrathoracic reconstruction using a gastric tube is presented. Chest radiograph on admission showed massive right pleural effusion, which demonstrated empyema on chest drainage. Further imaging studies confirmed a gastric tube-to-pleural fistula that had no connection to the airway. We chose endoscopic intervention as a less invasive procedure and successfully treated the patient by plugging fibrin glue into the fistula under endoscopy. Review of the literature and discussion of the clinical features, differential causes, and treatment options of this rare and severe condition are presented.
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Ushiyama A, Teraoka H, Shiba T, Saito T, Nagata J, Koike J, Mine T. [Protein-losing gastroenteropathy associated with Sjögren syndrome-case report and review of the Japanese literature]. Nihon Shokakibyo Gakkai Zasshi 2004; 101:1314-9. [PMID: 15651394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Affiliation(s)
- Atsushi Ushiyama
- Department of Gastroenterology, University of Tokai School of Medicine
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Sakamoto I, Watanabe S, Sakuma T, Igarashi M, Koike J, Shirai T, Sadahiro S, Nakamura M, Mine T. Intramucosal adenocarcinoma of the appendix: how to find and how to treat. Endoscopy 2003; 35:785-7. [PMID: 12929032 DOI: 10.1055/s-2003-41577] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
A colonoscopic examination of a 58-year-old man revealed a small elevated lesion inside the orifice of the appendix. Using a polypectomy snare, a nodular polypoid lesion with a diameter of ca. 20 mm was removed from the lumen of the appendix. Histopathology showed that it was a well-differentiated adenocarcinoma. This is the first report of an intramucosal adenocarcinoma of the appendix diagnosed preoperatively; laparoscopy-assisted colectomy with a D2 lymph-node dissection was carried out. Endoscopists should consider an appendiceal tumor when an erosion, elevation, or deformity is seen in the head of the cecum.
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Affiliation(s)
- I Sakamoto
- Division of Gastroenterology and Hepatology, Dept. of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Hasebe A, Koike J, Katou H. Strong Retardation in the Transport of Burkholderia cepacia during Infiltration into a Volcanic Ash Soil. Microbes Environ 2003. [DOI: 10.1264/jsme2.18.32] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Akira Hasebe
- Department of Environmental Chemistry, National Institute for Agro-Environmental Sciences
| | - Jun Koike
- Toyama Agricultural Experimental Station
| | - Hidetaka Katou
- Department of Environmental Chemistry, National Institute for Agro-Environmental Sciences
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Tsukada H, Koike J, Osada H. [Clinical outcome of epithelial tumors of the thymus]. Kyobu Geka 2002; 55:936-41. [PMID: 12391689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE AND METHODS We retrospectively reviewed treatment and clinical outcome of thymic epithelial tumors of 64 patients over a 20-year period. Clinical staging of the tumor was done by according to Masaoka classification. Histological diagnosis of the tumors was done by according to the second edition of the WHO histologic classification system for thymic epithelial tumors. Survival rate was calculated after Kaplan-Meire method. RESULTS Median age of patients was 53.7 years (ranged from 16 to 81). There were 30 men and 34 women. Eighteen patients had auto-immuno diseases. Sixty-two patients underwent surgery. In 57 patients resection was complete (extended thymo-thymectomy), but in the other five incomplete. The operative approach was median sternotomy in 51 patients and video-assisted thoracoscopic surgery in 6. Stage II to IV patients had postoperative mediastinal irradiation. Stage III to IV patients had postoperative cisplatin (CDDP) based chemotherapy. Inoperable patients were treated by chemo-radiotherapy. There were 42 stage I, 7 stage II, 11 stage III, 3 stage IV a, 1 stage IV b. The 5-year/10-year survival rates were 93%/89%, 71%/71%, 68.5%/--in patients with stage I, II and III. There were 5 type A tumors, 8 type AB tumors, 11 type B1 tumors, 11 type B2 tumors, 9 type B3 tumors, 11 type C tumors, the respect 5-year survival rates were 100%, 100%, 87.5%, 60%, 85.7% and 90%. Masaoka stage II to IV patients classified in B2, B3 and C type except one case. CONCLUSION Histologic type B2, B3 and C tumors may reflect the invasive nature. Masaoka staging system and the WHO histologic classification may help the assessment and treatment of patients with thymic epithelial tumor.
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Affiliation(s)
- H Tsukada
- Division of Chest Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
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Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Nihei H. Clinical and pathological assessment of acute vascular rejection in the transplant kidney. Clin Transplant 2002; 15 Suppl 5:41-4. [PMID: 11791794 DOI: 10.1034/j.1399-0012.2001.0150s5041.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Acute vascular rejection (AVR) in kidney transplantation is the most important factor influencing graft prognosis. We focus on patients whose grafts were lost because of AVR, and assessed their clinical characteristics and histological findings of biopsied renal grafts. Biopsied specimens exhibited AVR in 43 patients who underwent kidney transplantation in the Kidney Center of Tokyo Women's Medical University from 1995 to 1999. In the follow-up from 1 to 5 yr (median: 2.5 yr) we classified these patients into three groups: favourable prognosis group (FPG), relatively poor prognosis group (RPPG) and poor prognosis group (PPG). Light microscopic study for histological grading of acute rejection according to the Banff scheme and detection of the C4d complement deposition on peritubular capillaries by the immunofluorescence method were performed. Based on the results, the donors of RPPG and PPG were significantly older than those of FPG, and all factors of acute rejection according to the Banff scheme were not statistically significantly different among the three groups. However, an acute tubular injury mimicking acute tubular necrosis (ATN) was observed in the biopsy specimens from PPG. In conclusion, an older donor is a risk factor of poor prognosis of the graft with AVR, and acute tubular injury mimicking ATN is one of the important features that enables the prediction of graft failure originating from AVR in kidney transplantation.
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Affiliation(s)
- J Koike
- Department of Pathology, St Marianna University, School of Medicine, Kawasaki, Kanagawa, Japan
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Abstract
We report a rare case of cytomegalovirus (CMV) enterocolitis in a healthy 57-year-old woman. In March 1999, she developed hematochezia, diarrhea, and abdominal pain. Total colonoscopy on March 17th showed multiple aphthoid lesions and friable mucosa from the terminal ileum to the rectum and a shallow ulcer on the ileocecal valve. Repeat total colonoscopy on April 19th showed faded aphthoid lesions in the terminal ileum, and biopsy specimen revealed CMV inclusion bodies. Symptoms and endoscopic findings improved without any specific medication. In previous reports, the definition of "immunocompetent individual" varied. Here, we define immunocompetent individual as one who has no associated diseases, is not under immunosuppressive therapy, has no recent history of operation, is negative for human immunodeficiency virus antibody, is not pregnant, has no obvious infectious course, and is less than 70 years of age. This is the ninth report of CMV enterocolitis in an immunocompetent individual in the world literature.
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Affiliation(s)
- Ichiko Sakamoto
- Gastroenterology 2, Department of Internal Medicine, Tokai University School of Medicine, Kanagawa, Japan.
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39
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40
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Abstract
PURPOSE The cause of cyst production in renal dysplasia is uncertain. The authors hypothesized that different patterns of renal dysplasia result from variations in the timing and site of the urinary tract obstruction. METHODS The authors operated on fetal lambs at 50 and 60 days' gestation. Male lambs underwent urethral and urachal ligation and female lambs unilateral ureteric ligation. They were delivered by cesarean section at 145 days' gestation and killed. RESULTS Of 12 lambs operated on at 50 days' gestation, 4 survived. Of 26 lambs operated on at 60 days, 21 survived. The authors identified 3 types of dysplastic kidneys. Type A, fibrotic kidneys (2.2 g) with no cysts and interstitial fibrosis. There were reduced numbers of proximal tubules, but distal tubules and collecting ducts persisted. (50-day obstruction, n = 5 kidneys); type B, Sponge-like kidneys (37g): these had large cysts with minimal interstitial fibrosis. (87% of 60-day uretheral and urachal ligation model n = 12 kidneys); Type C, Small kidneys (4.8 g) with no large cysts (60-day Ureteric ligation model n = 7 kidneys). CONCLUSION The authors produced 3 different types of renal dysplasia by creating urinary tract obstruction at different sites and gestational ages.
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Affiliation(s)
- H Kitagawa
- St Marianna University School of Medicine, Division of Pediatric Surgery, 2-16-1, Sugao, Miyamae-ku, Kawasaki-shi, 216-8511, Japan
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41
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Koike J. [The view on the education of space science from Young Astronauts Club (YAC)]. Biol Sci Space 2001; 15:212-5. [PMID: 11997610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology, Yokohama, Japan
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42
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Koike J. [The ecology of microorganisms in closed environments--existing state and problems]. Biol Sci Space 2001; 15:238. [PMID: 11997621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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43
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Abstract
A 41-year-old female presented with a meningioma of the craniocervical junction manifesting as tetraparesis and vesicourethral dysfunction. Neuroradiological examinations showed a homogeneous enhanced mass lesion extending from the foramen magnum to the upper aspect of the second vertebral body. The tumor was totally removed via the transcondylar fossa approach, which is one type of the lateral approach. She was discharged without neurological deficits. The transcondylar approach is often utilized for lesions that occupy the ventral portion around the foramen magnum. The transcondylar fossa approach, a variation of the transcondylar approach, is a refined technique which obtains a closely similar surgical working field. Use of the transcondylar fossa approach remains controversial when treating patients with little brain stem dislocation, a small condylar fossa, and a protruding occipital condyle, but the approach can easily be converted to the transcondylar approach. The transcondylar fossa approach could become a standard method to access the craniocervical junction.
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Affiliation(s)
- Y Tange
- Department of Neurosurgery, Tokyo Metropolitan Health and Medical Treatment Corporation, Tamananbu Regional Hospital, Tama, Tokyo, Japan
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44
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Miyano S, Maeyama S, Iwaba A, Ogata S, Koike J, Kishi M, Uchikoshi T. A clinicopathological study of acute hepatitis in heavy drinkers, unrelated to hepatitis A, B, or C viruses. Alcohol Clin Exp Res 2001. [PMID: 11410746 DOI: 10.1111/j.1530-0277.2001.tb02422.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND There are six histological classifications of alcoholic liver disease (ALD) in Japan. However, it is unclear whether all cases of the disease conform to these criteria. This study investigated the clinicopathological features of eight histologically unusual cases of ALD. METHODS The characteristic features of alcohol drinking behavior, subjective and objective symptoms, laboratory data on admission, and progress after admission were analyzed for eight patients with acute-onset hepatitis. RESULT The eight patients showed histologically acute hepatitis, with much spotty necrosis that contained granular ceroid pigment by Kupffer cells, which indicated acute parenchymal damage of the liver, but with no Mallory bodies and unremarkable intrasinusoidal neutrophilic infiltration. The only etiological factor for all the cases was habitual alcohol consumption, with increased consumption just before the onset of symptoms. In five cases that were tested, the patients were negative for hepatic viral markers, which included hepatitis G virus RNA and TT virus DNA. CONCLUSION Some cases of ALD may not conform to the current histological classifications in either Japan or Western countries. It seems natural to consider that these cases are developed by other, unknown causes that overlap with ALD rather than as a result of damage from alcoholic overload.
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Affiliation(s)
- S Miyano
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
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45
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Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Agishi T. Super long-term surviving two renal grafts with severe arteriolosclerosis and glomerulosclerosis. Clin Transplant 2001; 14 Suppl 3:37-41. [PMID: 11092352 DOI: 10.1034/j.1399-0012.2000.0140s3037.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two long-term renal transplant survivors, for about 20 yr, with unusual histological features in the allograft kidney are reported. In both cases, marked hyalinosis was observed in the arterioles of the transplanted kidney, despite never having been administered cyclosporine or tacrolimus. The cause remains unknown at the present time, but we think that the changes could be multifactorial in origin, including due to aging of the graft, hypertension, hyperlipidemia and chronic rejection. We conclude that histological analysis of the allograft kidney must be performed in long-term renal transplant survivors, in order to understand the histological changes in the chronic phase after kidney transplantation and to predict the prognosis of the graft.
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Affiliation(s)
- J Koike
- Department of Pathology, St. Marianna University School of Medicine, Japan
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46
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Miyano S, Maeyama S, Iwaba A, Ogata S, Koike J, Kishi M, Uchikoshi T. A clinicopathological study of acute hepatitis in heavy drinkers, unrelated to hepatitis A, B, or C viruses. Alcohol Clin Exp Res 2001; 25:69S-74S. [PMID: 11410746 DOI: 10.1097/00000374-200106001-00016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND There are six histological classifications of alcoholic liver disease (ALD) in Japan. However, it is unclear whether all cases of the disease conform to these criteria. This study investigated the clinicopathological features of eight histologically unusual cases of ALD. METHODS The characteristic features of alcohol drinking behavior, subjective and objective symptoms, laboratory data on admission, and progress after admission were analyzed for eight patients with acute-onset hepatitis. RESULT The eight patients showed histologically acute hepatitis, with much spotty necrosis that contained granular ceroid pigment by Kupffer cells, which indicated acute parenchymal damage of the liver, but with no Mallory bodies and unremarkable intrasinusoidal neutrophilic infiltration. The only etiological factor for all the cases was habitual alcohol consumption, with increased consumption just before the onset of symptoms. In five cases that were tested, the patients were negative for hepatic viral markers, which included hepatitis G virus RNA and TT virus DNA. CONCLUSION Some cases of ALD may not conform to the current histological classifications in either Japan or Western countries. It seems natural to consider that these cases are developed by other, unknown causes that overlap with ALD rather than as a result of damage from alcoholic overload.
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Affiliation(s)
- S Miyano
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
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47
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Saitoh T, Moriwaki J, Koike J, Takagi A, Miwa T, Shiokawa K, Katoh M. Molecular cloning and characterization of FRAT2, encoding a positive regulator of the WNT signaling pathway. Biochem Biophys Res Commun 2001; 281:815-20. [PMID: 11237732 DOI: 10.1006/bbrc.2001.4421] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
FRAT1 positively regulates the WNT signaling pathway by stabilizing beta-catenin through the association with glycogen synthase kinase-3beta. Here, we have cloned FRAT2 cDNAs, spanning the complete coding sequence, from a human fetal lung cDNA library. FRAT2 encoded 233 amino-acid protein, which showed 77.3% total amino-acid identity with FRAT1. FRAT2 and FRAT1 were more homologous in the acidic domain (96% identity), the proline-rich domain (92% identity), and the GSK-3beta binding domain (100% identity). The FRAT2 gene was mapped to human chromosome 10q24.1. The FRAT2 mRNA of 2.4-kb in size was relatively highly expressed in MKN45 (gastric cancer), HeLa S3 (cervical cancer), and K-562 (chronic myelogenous leukemia). Xenopus axis duplication assay revealed that the wild-type FRAT2 mRNA, but not the mutant FRAT2 mRNA lacking the acidic domain and the proline-rich domain, has the capacity to induce the secondary axis. These results indicate that FRAT2, just like FRAT1, functions as a positive regulator of the WNT signaling pathway. Thus, up-regulation of FRAT2 in human cancer might be implicated in carcinogenesis through activation of the WNT signaling pathway.
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Affiliation(s)
- T Saitoh
- Genetics and Cell Biology Section, Genetics Division, National Cancer Center Research Institute, Tsukiji 5-chome, Tokyo, Chuo-ku, 104-0045, Japan
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48
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Koike J. [The view on the education of space science from Young Astronauts Club]. Biol Sci Space 2001; 15:52-3. [PMID: 12101378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Yokohama, Japan.
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49
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Moriwaki J, Kajita E, Kirikoshi H, Koike J, Sagara N, Yasuhiko Y, Saitoh T, Hirai M, Katoh M, Shiokawa K. Isolation of Xenopus frizzled-10A and frizzled-10B genomic clones and their expression in adult tissues and embryos. Biochem Biophys Res Commun 2000; 278:377-84. [PMID: 11097845 DOI: 10.1006/bbrc.2000.3808] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Frizzled genes, encoding WNT receptors, play key roles in cell fate determination. Here, we isolated two Xenopus frizzled genes (Xfz10A and Xfz10B), probably reflecting pseudotetraploidy in Xenopus. Xfz10A (586 amino acids) and Xfz10B (580 amino acids) both encoded by a single exon, consisted of the N-terminal cysteine-rich domain, seven transmembrane domains, and the C-terminal Ser/Thr-X-Val motif. Xfz10A and Xfz10B were 97.0% identical at the amino acid level, and Xfz10B was 100% identical to previously reported Xfz9, yet Xfz10A was 85.3% and 62.4% identical to FZD10 and FZD9, respectively. Xfz10 mRNA appeared as 3.4 kb in adult tissues and embryos. RT-PCR analyses revealed the expression of more Xfz10A mRNA in stomach, kidney, eye, skeletal muscle, and skin, and more Xfz10B mRNA in heart and ovary, but in embryos, two mRNAs were equally expressed from the blastula stage with their peak expression at the late gastrula stage. The main site of Xfz10 mRNA expression was neural fold at the neurula stage and the dorsal region of midbrain, hindbrain, and spinal cord at the tadpole stage. These results suggest that Xfz10 has important roles in neural tissue formation.
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Affiliation(s)
- J Moriwaki
- Laboratory of Molecular Embryology, Department of Integrated Biosciences, Graduate School of Frontier Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
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50
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Abstract
BACKGROUND If creating an obstructive uropathy early in glomerulogenesis produces MCDK (Multicystic Dysplastic Kidney), then a very early obstruction may produce Potter's Syndrome (PS) with oligohydramnios. METHODS Fetal lambs at 50 days' gestation underwent urethral and urachal ligation using fine SILASTIC (Dow Corning, Midland, MI) tubing and were delivered by cesarean section at 145 days' gestation. At the time of death, kidney weight, length, and lung volumes were measured. These samples were examined histologically. Urinary sodium, chloride, potassium, and osmolarity also were measured. These were compared with normal-term fetuses. RESULTS One ewe miscarried. Two of 3 of 50-day obstructive uropathy lambs survived. The 2 survivors had dysplastic kidneys. One with large gastroschisis did not have PS but the other had renal, pulmonary, and chest wall hypoplasia. Both male lambs had undescended testes with a large bladder. Kidney weights were 2 g in the PS lamb and 16 g in controls. Lung volume was 84 mL in the PS lamb and 340 mL in controls. The lamb's face was compressed and the fetus was hydropic. Urine sodium, potassium, and osmolarity levels were higher than that of controls. CONCLUSIONS This is the first successful model ligating the penile urethra and urachus in a 50-day lamb. The authors' previous 60-day model did not have PS, but an earlier obstructive uropathy caused MCDK with PS.
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Affiliation(s)
- H Kitagawa
- Department of Pathology, St Marianna University School of Medicine, Kawasaki, Japan
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