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Maeda K, Kusano M, Jinno R, Hoshino M, Inokawa H, Komizu Y, Tomoshige R, Matsushita T, Ishida S. Research on the induction of cellular differentiation of osteoblast-like cells using bioceramic culture carriers. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00495-1] [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: 10/20/2022]
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Okazaki T, Kusano M, Shimada K. P2.09-25 Tumor Spread Through Air Spaces (STAS) Was Correlated with Multiple Advanced Clinicopathological Factors. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1674] [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: 10/25/2022]
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Tominaga K, Sakata Y, Kusunoki H, Odaka T, Sakurai K, Kawamura O, Nagahara A, Takeuchi T, Fujikawa Y, Oshima T, Kato M, Furuta T, Murakami K, Chiba T, Miwa H, Kinoshita Y, Higuchi K, Kusano M, Iwakiri R, Fujimoto K, Tack JF, Arakawa T. Rikkunshito simultaneously improves dyspepsia correlated with anxiety in patients with functional dyspepsia: A randomized clinical trial (the DREAM study). Neurogastroenterol Motil 2018; 30:e13319. [PMID: 29498457 DOI: 10.1111/nmo.13319] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Functional dyspepsia (FD), a heterogeneous disorder, involves multiple pathogenetic mechanisms. Developing treatments for FD has been challenging. We performed a randomized, placebo-controlled, double-blind clinical trial to determine the efficacy of rikkunshito, a Japanese herbal medicine, in FD patients. METHODS FD patients (n = 192) who met the Rome III criteria without Helicobacter pylori infection, predominant heartburn, and depression were enrolled at 56 hospitals in Japan. After 2 weeks of single-blind placebo treatment, 128 patients with continuous symptoms were randomly assigned to 8 weeks of rikkunshito (n = 64) or placebo (n = 61). The primary efficacy endpoint was global assessment of overall treatment efficacy (OTE). The secondary efficacy endpoints were improvements in upper gastrointestinal symptoms evaluated by the Patient Assessment of Upper Gastrointestinal Disorders-Symptom Severity Index (PAGI-SYM), the Global Overall Symptom scale (GOS), and the modified Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease (m-FSSG), and psychological symptoms evaluated by the Hospital Anxiety and Depression Scale (HADS). KEY RESULTS Rikkunshito increased OTE compared to placebo at 8 weeks (P = .019). Rikkunshito improved upper gastrointestinal symptoms (PAGI-SYM, GOS, and m-FSSG) at 8 weeks, especially postprandial fullness/early satiety (P = .015 and P = .001) and bloating (P = .007 and P = .002) of the PAGI-SYM subscales at 4 weeks and 8 weeks. Improvement of HADS at 8 weeks (P = .027) correlated with those of PAGI-SYM (r = .302, P = .001), GOS (r = .186, P = .044), and m-FSSG (r = .462, P < .001), postprandial fullness/early satiety (r = .226, P = .014), dyspepsia (r = .215, P = .019), and PDS (r = .221, P = .016). CONCLUSION & INFERENCES Rikkunshito may be beneficial for FD patients to simultaneously treat gastrointestinal and psychological symptoms.
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Affiliation(s)
- K Tominaga
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Y Sakata
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - H Kusunoki
- Department of General Medicine, Kawasaki Medical School, Kurashiki-city, Okayama, Japan
| | - T Odaka
- Odaka Medical and Gastrointestinal Clinic, Chiba, Japan
| | | | - O Kawamura
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - A Nagahara
- Department of Gastroenterology, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - T Takeuchi
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
| | - Y Fujikawa
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - T Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - M Kato
- National Hospital Organization Hakodate Hospital, Hakodate, Japan
| | - T Furuta
- Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Murakami
- Department of Gastroenterology, Oita University Faculty of Medicine, Oita, Japan
| | - T Chiba
- Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Y Kinoshita
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Japan
| | - K Higuchi
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - R Iwakiri
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - K Fujimoto
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - J F Tack
- University Hospitals Leuven, Leuven, Belgium
| | - T Arakawa
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Sagawa T, Kakizaki S, Tomizawa T, Nakayama T, Tanaka H, Tojima H, Sato K, Kusano M, Okamura S, Yamada M. Faecal lactoferrin is a useful biomarker for mucosal healing in patients with ulcerative colitis during granulocyte and monocyte adsorptive apheresis therapy. Colorectal Dis 2016; 18:696-702. [PMID: 26748553 DOI: 10.1111/codi.13258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 11/07/2015] [Indexed: 12/13/2022]
Abstract
AIM The study investigated the value of faecal lactoferrin as a follow-up biomarker for mucosal healing of ulcerative colitis during granulocyte and monocyte adsorptive apheresis (GMA) therapy. METHOD Patients with ulcerative colitis exhibiting a moderate or severe disease activity with a partial Mayo Score (pMS) of over 4 were enrolled in this study. The patients received 10 courses of GMA therapy. The pMS value and faecal lactoferrin level were monitored and compared with the findings of endoscopy until 12 months after the last dose of GMA therapy. RESULTS Twenty patients (male:female 11:9) were enrolled in this study. Twelve had total colitis, while six had left-sided involvement and two had distal proctitis. Thirteen (65.0%) responded to GMA therapy. The faecal lactoferrin levels were significantly decreased in patients who responded to GMA therapy (P < 0.05), whereas the levels did not change in non-responders. Moreover, the faecal lactoferrin levels correlated with the endoscopic findings (r = 0.792, P < 0.01) and pMS scores (r = 0.529, P < 0.01). The correlation coefficients between the faecal lactoferrin levels and mucosal findings were higher than those observed between the pMS score and mucosal findings. CONCLUSION The faecal lactoferrin level is a useful biomarker of the mucosal findings in ulcerative colitis. Although endoscopy is the gold standard, the faecal lactoferrin level can be used as a biomarker during GMA therapy in patients with ulcerative colitis.
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Affiliation(s)
- T Sagawa
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - S Kakizaki
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Tomizawa
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Nakayama
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - H Tanaka
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - H Tojima
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - K Sato
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Japan
| | - S Okamura
- Department of Health and Nutritional Science, Takasaki University of Health and Welfare, Takasaki, Japan
| | - M Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
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Kusano M, Kubouchi M, Bulgarevich DS, Shiwa M. Non-destructive evaluation by terahertz spectroscopy for penetration of acid solutions into epoxy resin. EXPRESS POLYM LETT 2016. [DOI: 10.3144/expresspolymlett.2016.87] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Kuribayashi S, Iwakiri K, Kawada A, Kawami N, Hoshino S, Takenouchi N, Hosaka H, Shimoyama Y, Kawamura O, Yamada M, Kusano M. Variant parameter values-as defined by the Chicago Criteria-produced by ManoScan and a new system with Unisensor catheter. Neurogastroenterol Motil 2015; 27:188-94. [PMID: 25271562 DOI: 10.1111/nmo.12446] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 08/26/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Recently reported normal values for esophageal motility obtained by high-resolution manometry (HRM) using a system with a Unisensor catheter were significantly different from those obtained by the ManoScan(®) , which could result in a wrong diagnosis. To clarify whether these differences were due to system or subject differences, we compared the manometric parameter values between ManoScan and a new system with a Unisensor catheter (Starlet) in the same subjects. METHODS A total of 103 volunteers without any symptoms related to esophageal motility disorders were recruited. Esophageal HRM was performed using both the ManoScan and the Starlet in all subjects. Data from the ManoScan were analyzed using ManoView, and data from the Starlet were analyzed by a program with e-sleeve function. Integrated relaxation pressure, distal contractile integral, contractile front velocity (CFV), intrabolus pressure, and distal latency were calculated by both analyzing programs, and the values of these parameters were compared between the two systems by a signed rank test. KEY RESULTS Data from a total of 97 participants were analyzed. The values of all parameters, except CFV, measured by the Starlet were significantly higher than those obtained by the ManoScan (p < 0.01). CONCLUSIONS & INFERENCES Both systems can measure esophageal motility appropriately; nevertheless, we confirmed that the two systems showed different values of the parameters defined by the Chicago criteria. These differences should be recognized to evaluate esophageal motility precisely.
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Affiliation(s)
- S Kuribayashi
- Department of Gastroenterology, Gunma University Hospital, Gunma, Japan; Department of Gastroenterology and Hepatology, National Hospital Organization Numata National Hospital, Gunma, Japan
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Kusano M, Caldwell CB. Dose equivalent rate constants and barrier transmission data for nuclear medicine facility dose calculations and shielding design. Health Phys 2014; 107:60-72. [PMID: 24849904 DOI: 10.1097/hp.0000000000000051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A primary goal of nuclear medicine facility design is to keep public and worker radiation doses As Low As Reasonably Achievable (ALARA). To estimate dose and shielding requirements, one needs to know both the dose equivalent rate constants for soft tissue and barrier transmission factors (TFs) for all radionuclides of interest. Dose equivalent rate constants are most commonly calculated using published air kerma or exposure rate constants, while transmission factors are most commonly calculated using published tenth-value layers (TVLs). Values can be calculated more accurately using the radionuclide's photon emission spectrum and the physical properties of lead, concrete, and/or tissue at these energies. These calculations may be non-trivial due to the polyenergetic nature of the radionuclides used in nuclear medicine. In this paper, the effects of dose equivalent rate constant and transmission factor on nuclear medicine dose and shielding calculations are investigated, and new values based on up-to-date nuclear data and thresholds specific to nuclear medicine are proposed. To facilitate practical use, transmission curves were fitted to the three-parameter Archer equation. Finally, the results of this work were applied to the design of a sample nuclear medicine facility and compared to doses calculated using common methods to investigate the effects of these values on dose estimates and shielding decisions. Dose equivalent rate constants generally agreed well with those derived from the literature with the exception of those from NCRP 124. Depending on the situation, Archer fit TFs could be significantly more accurate than TVL-based TFs. These results were reflected in the sample shielding problem, with unshielded dose estimates agreeing well, with the exception of those based on NCRP 124, and Archer fit TFs providing a more accurate alternative to TVL TFs and a simpler alternative to full spectral-based calculations. The data provided by this paper should assist in improving the accuracy and tractability of dose and shielding calculations for nuclear medicine facility design.
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Affiliation(s)
- Maggie Kusano
- *Sunnybrook Research Institute, Toronto, Ontario, Canada; †Department of Medical Imaging, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; †Departments of Medical Imaging and Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
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Shimizu Y, Shimoyama Y, Kawada A, Kusano M, Hosomi Y, Sekiguchi M, Kawata T, Horie T, Ishii Y, Yamada M, Dobashi K, Takise A. Gastrointestinal symptoms in idiopathic pulmonary fibrosis patients treated with pirfenidone and herbal medicine. J BIOL REG HOMEOS AG 2014; 28:433-442. [PMID: 25316130] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Pirfenidone is an antifibrotic agent for patients with pulmonary fibrosis, but this drug has adverse gastrointestinal (GI) effects. The first aim of this study was to assess GI symptoms due to pirfenidone by using a new questionnaire for reflux symptoms and dismotility symptoms. Whether adding herbal medicine of rikkunshi-to improved GI symptoms due to pirfenidone therapy was also investigated. This was a randomized controlled trial performed on 17 IPF patients. The patients were assigned to two groups, and the study period was 8 weeks. The pirfenidone group received pirfenidone therapy for 8 weeks with add-on rikkunshi-to from 4 weeks, while the control group did not receive either of these agents. To assess the effects of RK, plasma levels of acyl-ghrelin and des-acyl-ghrelin, serum KL-6 and surfactant protein-D, and pulmonary function tests were monitored. GI symptoms were most severe during the initial 2 weeks of pirfenidone therapy at a dose of 600 mg/day. Both reflux symptoms and dismotility symptoms deteriorated. Rikkunshi-to improved GI symptoms to the level prior to pirfenidone therapy. Plasma levels of des-acyl-ghrelin and acyl-/des-acyl-ghrelin ratio changed significantly at 8 weeks compared to 2 weeks. GI adverse events due to PFD were most severe in the first 2 weeks of treatment at a dose of 600 mg/day, and both reflux and dismotility symptoms deteriorated, but the drug was well tolerated at 1200 mg/day. Rikkunshi-to contributed to improvement of GI symptoms, but plasma ghrelin levels did not reflect the improvement of GI symptoms.
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Affiliation(s)
- Y Shimizu
- Department of Respiratory Medicine, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - Y Shimoyama
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - A Kawada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital Gastroenterology, Maebashi, Gunma, Japan
| | - Y Hosomi
- Clinical laboratory Center, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - M Sekiguchi
- Clinical laboratory Center, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - T Kawata
- Department of Respiratory Medicine, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - T Horie
- Department of Respiratory Medicine, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - Y Ishii
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Mibu, Tochigi, Japan
| | - M Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - K Dobashi
- Gunma University School of Health Sciences, Maebashi, Gunma, Japan
| | - A Takise
- Department of Respiratory Medicine, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
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Shimada A, Kusano M, Matsumoto K, Nishibe M, Kawano T, Kimurab Y. Pollen Growth Regulator, Fusanolide A, and a Related Metabolite from Fusarium sp. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-2002-0216] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fusanolides A (1) and B (2) were isolated from cultures of the fungus Fusarium sp. as pollen growth regulators and their structures were established by spectroscopic evidence. 1 completely inhibited pine pollen germination and tea pollen tube growth at a concentration of 300 mg/l, but 2 showed no inhibitory effect on them at the same concentration.
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Affiliation(s)
- A. Shimada
- Department of Environmental Chemistry, Faculty of Engineering, Kyushu Kyoritsu University, 1-8 Jiyugaoka, Yahatanishi, Kitakyushu 807-8585, Japan
| | - M. Kusano
- Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan
| | - K. Matsumoto
- Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan
| | - M. Nishibe
- Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan
| | - T. Kawano
- Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan
| | - Y. Kimurab
- Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan
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Sattarivand M, Borel S, Armstrong J, Kusano M, Poon I, Caldwell C. Uncertainty in measurements of ¹⁸F blood concentration and its effect on simplified dynamic PET analysis. J Nucl Med Technol 2014; 42:21-7. [PMID: 24480919 DOI: 10.2967/jnmt.113.131789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED The purpose of this study was to assess the accuracy and practicality of well counter- and thyroid probe-based methods, commonly available in nuclear medicine facilities, for measuring the concentration of (18)F-FDG in blood samples. The degree to which the accuracy of such methods influences quantitative analysis of dynamic PET scans was also assessed. METHODS Thirty-five patients with cancer of the head and neck underwent dynamic PET imaging as part of a study intended to evaluate the utility of quantitative, image-based metrics for assessment of early treatment response. The activity in blood samples from the patients, necessary to provide an estimate of the input function for quantitative analysis, was measured both using a thyroid probe and using a well counter. Three calibration techniques were compared: single-point calibration using a standard solution for the thyroid probe (ProbePoint technique), single-point calibration using a standard solution for the well counter (WellPoint technique), and multiple-point calibration over the full range of expected blood activities for the well counter (WellCurve technique). The WellCurve method was assumed to provide the most accurate estimate of blood activity. The precision of measuring blood volume using a micropipette was also evaluated by obtaining multiple blood samples. Simplified-kinetic-analysis multiple-time-point (SKA-M) uptake rates for the primary tumor were calculated for all 35 patients using PET images and each of the 3 methods for assessing blood concentration. RESULTS Errors in blood activity measurements ranging from -9.5% to 7.6% were found using the ProbePoint method, whereas the error range was much less (from -1.3% to 0.9%) for the WellPoint method. The precision in blood volume measurements ranged from -6% to 12% in the 10 patients assessed. The errors in blood activity and volume measurements were reflected in the SKA-M measurements in the same range. CONCLUSION The WellPoint method provides a compromise between accuracy and clinical practicality. Random errors in both blood activity and volume measurements accumulate and may compromise parameters--such as the SKA-M estimate of tumor uptake rate--that depend not only on images but also on blood concentration data.
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Affiliation(s)
- Mike Sattarivand
- Department of Medical Biophysics, University of Toronto, Odette Cancer Centre at Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Iwakiri R, Tominaga K, Furuta K, Inamori M, Furuta T, Masuyama H, Kanke K, Nagahara A, Haruma K, Kinoshita Y, Higuchi K, Takahashi S, Kusano M, Iwakiri K, Kato M, Hongo M, Hiraishi H, Watanabe S, Miwa H, Naito Y, Fujimoto K, Arakawa T. Randomised clinical trial: rabeprazole improves symptoms in patients with functional dyspepsia in Japan. Aliment Pharmacol Ther 2013; 38:729-40. [PMID: 23957383 DOI: 10.1111/apt.12444] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [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: 04/22/2013] [Revised: 04/26/2013] [Accepted: 07/18/2013] [Indexed: 12/19/2022]
Abstract
BACKGROUND The efficacy of proton pump inhibitors (PPIs) for treating functional dyspepsia (FD) is not well established. AIM This study, named the SAMURAI study, aimed to assess the efficacy and dose-response relationship of rabeprazole in Japanese patients with FD in a multicentre, double-blinded, randomised, placebo-controlled trial. METHODS Investigated FD was diagnosed using the Rome III criteria. Subjects who did not respond to 1 week of single-blind placebo treatment in a run-in period were randomly assigned to 8 weeks of double-blind treatment with rabeprazole 10 mg, 20 mg, 40 mg or placebo, once daily. Dyspeptic symptoms were assessed by a dyspepsia symptom questionnaire (7-point Likert scale) and symptom diary. RESULTS Of 392 subjects entered into the run-in period, 338 were randomly assigned. Although there was no significant difference between placebo and rabeprazole groups in complete symptom relief for four major dyspeptic symptoms, the satisfactory symptom relief of rabeprazole 20 mg was significantly higher than placebo according to the dyspepsia symptom questionnaire (45.3% vs. 28.2%, P = 0.027) and the symptom diary assessment (48.7% vs. 30.0%, P = 0.016). The efficacy was not influenced by syndrome type or Helicobacter pylori status. No statistically significant differences in the incidence of adverse events were seen among treatment groups. CONCLUSIONS Rabeprazole 20 mg once daily but not 10 or 40 mg significantly provides satisfactory symptom relief for functional dyspepsia (ClinicalTrials.gov, Number NCT01089543).
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Affiliation(s)
- R Iwakiri
- Department of Internal Medicine & Gastrointestinal Endoscopy, Saga Medical School, Saga, Japan.
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Sekiguchi T, Nishioka T, Kusano M, Matsuzaki T, Sugiyama T, Horikoshi T. Clinical Effects of Roxatidine Acetate Hydrochloride, Once or Twice Daily in the Treatment of Reflux Oesophagitis. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/bf03259194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hosaka H, Kusano M, Zai H, Kawada A, Kuribayashi S, Shimoyama Y, Nagoshi A, Maeda M, Kawamura O, Mori M. Monosodium glutamate stimulates secretion of glucagon-like peptide-1 and reduces postprandial glucose after a lipid-containing meal. Aliment Pharmacol Ther 2012; 36:895-903. [PMID: 22978669 DOI: 10.1111/apt.12050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [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: 06/08/2012] [Revised: 06/29/2012] [Accepted: 08/28/2012] [Indexed: 12/25/2022]
Abstract
BACKGROUND Monosodium l-glutamate (MSG) is known to influence the endocrine system and gastrointestinal (GI) motility. The mechanism of postprandial glycemic control by food in the GI tract is mostly unknown and of great interest. AIM To investigate the effect of MSG on glucose homeostasis, incretin secretion and gastric emptying in humans after a lipid-containing meal. METHODS Thirteen healthy male volunteers (mean age, 25.5 years) and with no Helicobcter pylori infection were enrolled. A 400 mL (520 kcal) liquid meal with MSG (2 g, 0.5% wt:vol) or NaCl (control) was ingested in a single-blind placebo-controlled cross-over study. Blood glucose, serum insulin, plasma glucagon, plasma glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide were measured. Gastric emptying was monitored by a 13C acetate breath test. Postprandial symptoms were assessed on a visual analogue scale. RESULTS The 30-min postprandial glucose concentration was significantly reduced by adding MSG to the test meal. The area under the glucose concentration vs. time curve (0-60 min) was also significantly reduced by adding MSG (40.6 ± 3.51 mg·1 hr/dL with MSG vs. 49.2 ± 3.86 mg·1 hr/dL with NaCl, P = 0.047), whereas, the 30-min postprandial plasma GLP-1 level was significantly increased (58.1 ± 15.8 pmol/L with MSG vs. 13.4 ± 15.8 pmol/L with NaCl, P = 0.035). MSG did not affect the half gastric emptying time or postprandial symptoms. CONCLUSIONS Monosodium l-glutamate improved early postprandial glycaemia after a lipid-containing liquid meal. This effect was not associated with a change in gastric emptying, but was possibly related to stimulation of glucagon-like peptide-1 secretion.
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Affiliation(s)
- H Hosaka
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Japan
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Sattarivand M, Kusano M, Poon I, Caldwell C. Symmetric geometric transfer matrix partial volume correction for PET imaging: principle, validation and robustness. Phys Med Biol 2012; 57:7101-16. [DOI: 10.1088/0031-9155/57/21/7101] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [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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Kumagai Y, Yagi M, Aida J, Ishida H, Suzuki S, Hashimoto T, Amanuma Y, Kusano M, Mukai S, Yamazaki S, Iida M, Ochiai T, Matsuura M, Iwakiri K, Kawano T, Hoshihara Y, Takubo K. Detailed features of palisade vessels as a marker of the esophageal mucosa revealed by magnifying endoscopy with narrow band imaging. Dis Esophagus 2012; 25:484-90. [PMID: 22098187 DOI: 10.1111/j.1442-2050.2011.01283.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 12/11/2022]
Abstract
The palisade vessels present at the distal end of the esophagus are considered to be a landmark of the esophagogastric junction and indispensable for diagnosis of columnar-lined esophagus on the basis of the Japanese criteria. Here we clarified the features of normal palisade vessels at the esophagogastric junction using magnifying endoscopy. We prospectively studied palisade vessels in 15 patients undergoing upper gastrointestinal endoscopy using a GIF-H260Z instrument (Olympus Medical Systems Co., Tokyo, Japan). All views of the palisade vessels were obtained at the maximum magnification power in the narrow band imaging mode. We divided the area in which palisade vessels were present into three sections: the area from the squamocolumnar junction (SCJ) to about 1 cm orad within the esophagus (Section 1); the area between sections 1 and 3 (Section 2); and the area from the upper limit of the palisade vessels to about 1 cm distal within the esophagus (Section 3). In each section, we analyzed the vessel density, caliber of the palisade vessels, and their branching pattern. The vessel density in Sections 1, 2, and 3 was 9.1 ± 2.1, 8.0 ± 2.6, and 3.3 ± 1.3 per high-power field (mean ± standard deviation [SD]), respectively, and the differences were significant between Sections 1 and 2 (P= 0.0086) and between Sections 2 and 3 (P < 0.0001). The palisade vessel caliber in Sections 1, 2, and 3 was 127.6 ± 52.4 µm, 149.6 ± 58.6 µm, and 199.5 ± 75.1 µm (mean ± SD), respectively, and the differences between Sections 1 and 2, and between Sections 2 and 3, were significant (P < 0.0001). With regard to branching form, the frequency of branching was highest in Section 1, and the 'normal Y' shape was observed more frequently than in Sections 2 and 3. Toward the oral side, the frequency of branching diminished, and the frequency of the 'upside down Y' shape increased. The differences in branching form were significant among the three sections (P < 0.0001). These results indicate that the density of palisade vessels is highest near the SCJ, and that towards their upper limit they gradually become more confluent and show an increase of thickness. Within a limited area near the SCJ, observations of branching form suggest that palisade vessels merge abruptly on the distal side. We have demonstrated that palisade vessels are a useful marker for endoscopic recognition of the lower esophagus.
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Affiliation(s)
- Y Kumagai
- Department of Surgery, Ohta Nishinouchi Hospital, Fukushima, Japan.
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Sattarivand M, Kusano M, Poon I, Caldwell C. Sci-Fri AM: Imaging - 07: Symmetric geometric transfer matrix partial volume correction technique for emission tomography: Principle, validation, and robustness. Med Phys 2012; 39:4641. [DOI: 10.1118/1.4740193] [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: 11/07/2022] Open
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17
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Kusano M, Hosaka H, Moki H, Shimoyama Y, Kawamura O, Kuribayashi S, Mori M, Akuzawa M. Cascade stomach is associated with upper gastrointestinal symptoms: a population-based study. Neurogastroenterol Motil 2012; 24:451-5, e214. [PMID: 22288935 DOI: 10.1111/j.1365-2982.2012.01876.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [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: 12/11/2022]
Abstract
BACKGROUND Cascade stomach (CS) is recognized by characteristic findings on barium studies. We prospectively investigated the relationship between CS and upper gastrointestinal (GI) symptoms. METHODS In subjects undergoing health screening, CS was diagnosed by barium studies. Consecutive persons (500 men and 127 women) with CS were identified and the same number of age-matched subjects without CS were selected as controls. Upper GI symptoms were classified as reflux symptoms, dyspepsia symptoms, or epigastralgia symptoms. Then, we prospectively analyzed barium studies to classify the gastric morphology and also assessed upper GI symptoms in consecutive 5008 men and 2736 women. KEY RESULTS BMI was significantly higher in men with CS than in controls, and also in women with CS than in controls. Upper GI symptoms were significantly more frequent in the CS group than the controls among both men and women, especially reflux symptoms. In men, logistic regression analysis identified CS as an independent risk factor for upper GI symptoms (odds ratio = 1.771, P = 0.005) and for reflux symptoms (odds ratio = 2.07, P = 0.009). In women, CS was also significantly related to upper GI symptoms (odds ratio = 2.544, P = 0.020). The prevalence of CS was significantly higher (P < 0.0001) among symptomatic men than among those with no symptoms. CONCLUSIONS & INFERENCES Gastric morphology is related to upper GI symptoms in both men and women. Cascade stomach should be reconsidered as a pathophysiological factor associated with upper GI symptoms.
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Affiliation(s)
- M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan.
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18
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Kawamura O, Shimoyama Y, Hosaka H, Kuribayashi S, Maeda M, Nagoshi A, Zai H, Kusano M. Increase of weakly acidic gas esophagopharyngeal reflux (EPR) and swallowing-induced acidic/weakly acidic EPR in patients with chronic cough responding to proton pump inhibitors. Neurogastroenterol Motil 2011; 23:411-8, e172. [PMID: 21210893 DOI: 10.1111/j.1365-2982.2010.01658.x] [Citation(s) in RCA: 20] [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] [Indexed: 02/08/2023]
Abstract
BACKGROUND Gastro-esophageal reflux disease (GERD)-related chronic cough (CC) may have multifactorial causes. To clarify the characteristics of esophagopharyngeal reflux (EPR) events in CC patients whose cough was apparently influenced by gastro-esophageal reflux (GER), we studied patients with CC clearly responding to full-dose proton pump inhibitor (PPI) therapy (CC patients). METHODS Ten CC patients, 10 GERD patients, and 10 healthy controls underwent 24-h ambulatory pharyngo-esophageal impedance and pH monitoring. Weakly acidic reflux was defined as a decrease of pH by >1 unit with a nadir pH >4. In six CC patients, monitoring was repeated after 8 weeks of PPI therapy. The number of each EPR event and the symptom association probability (SAP) were calculated. Symptoms were evaluated by a validated GERD symptom questionnaire. KEY RESULTS Weakly acidic gas EPR and swallowing-induced acidic/weakly acidic EPR only occurred in CC patients, and the numbers of such events was significantly higher in the CC group than in the other two groups (P < 0.05, respectively). Symptom association probability analysis revealed a positive association between GER and cough in three CC patients. Proton pump inhibitor therapy abolished swallowing-induced acidic/weakly acidic EPR, reduced weakly acidic gas EPR, and improved symptoms (all P < 0.05). CONCLUSIONS & INFERENCES Most patients with CC responding to PPI therapy had weakly acidic gas EPR and swallowing-induced acidic/weakly acidic EPR. A direct effect of acidic mist or liquid refluxing into the pharynx may contribute to chronic cough, while cough may also arise indirectly from reflux via a vago-vagal reflex in some patients.
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Affiliation(s)
- O Kawamura
- Department of Gastroenterology, Gunma University Hospital, Maebashi, Gunma, Japan.
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19
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Shimoyama Y, Kusano M, Uchiyama Y, Mori M. Education and Imaging. Gastrointestinal: rectal sarcoidosis due to paralytic ileus resembling adult-onset Hirschsprung disease. J Gastroenterol Hepatol 2010; 25:1464. [PMID: 20659240 DOI: 10.1111/j.1440-1746.2010.06423.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Y Shimoyama
- Medicine and Molecular Science, Gunma University Graduate School of Medicine. Japan
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Tsunoda A, Nakao K, Watanabe M, Matsui N, Ooyama A, Kusano M. Associations of various gene polymorphisms with toxicity in colorectal cancer patients receiving oral uracil and tegafur plus leucovorin: a prospective study. Ann Oncol 2010; 22:355-61. [PMID: 20647221 DOI: 10.1093/annonc/mdq358] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND To assess the predictive value of polymorphism in nine genes, primarily thymidylate synthase (TS) and orotate phosphoribosyltransferase (OPRT), which relates to 5-fluorouracil (5-FU) metabolism, for toxicity in patients treated with oral uracil/tegafur (UFT) plus leucovorin (LV). PATIENTS AND METHODS We treated 99 patients with stage II or III colorectal carcinoma with oral UFT + LV. Germline DNA from patients was genotyped for 5-FU and folate metabolism-relating genes. CYP2A6, tegafur-activating enzyme, and uridine diphosphate-glucuronosyltransferase 1A1 genetic variation were also assessed. Toxicity was graded by the National Cancer Institute Common Toxicity Criteria, version 2.0. RESULTS The multivariate logistic regression revealed that OPRT 638G>C polymorphism was associated with grade 3 diarrhea [odds ratio (OR) 19.84 for patients with the C/C homozygous type compared with patients with wild type, P = 0.014] and polymorphisms of UGT1A1 were associated with hyperbilirubinemia (OR 38.76 for homozygotes and double heterozygotes of *6 or *28 compared with wild type, P = 0.0008). No relationships were observed between TS polymorphisms and any toxicity. CONCLUSIONS OPRT polymorphism predicts toxicity, especially grade 3 or greater diarrhea to oral UFT + LV adjuvant chemotherapy, whereas TS does not, in our study cohort. UGT1A1 polymorphism seems to be a risk factor for hyperbilirubinemia due to UFT+LV.
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Affiliation(s)
- A Tsunoda
- Department of Surgery, Kameda Medical Center, Chiba.
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21
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Kuribayashi S, Kusano M, Kawamura O, Shimoyama Y, Maeda M, Hisada T, Ishizuka T, Dobashi K, Mori M. Mechanism of gastroesophageal reflux in patients with obstructive sleep apnea syndrome. Neurogastroenterol Motil 2010; 22:611-e172. [PMID: 20236246 DOI: 10.1111/j.1365-2982.2010.01485.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [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: 12/13/2022]
Abstract
BACKGROUND It has been reported that the prevalence of gastroesophageal reflux (GER) disease is high in patients with obstructive sleep apnea (OSA). End-inspiratory intra-esophageal pressure decreases progressively during OSA, which has been thought to facilitate GER in OSA patients. The aim of our study was to clarify the mechanisms of GER during sleep (sleep-GER) in OSA patients. METHODS Eight OSA patients with reflux esophagitis (RE), nine OSA patients without RE, and eight healthy controls were studied. Polysomnography with concurrent esophageal manometry and pH recording were performed. KEY RESULTS Significantly more sleep-GER occurred in OSA patients with RE than without RE or in controls (P < 0.05). The severity of OSA did not differ between OSA patients with RE and without RE. Sleep-GER was mainly caused by transient lower esophageal sphincter relaxation (TLESR), but not by negative intra-esophageal pressure during OSA. During OSA gastroesophageal junction pressure progressively increased synchronous to intra-esophageal pressure decrease. OSA patients had significantly more TLESR events during sleep related to preceding arousals and shallow sleep, but the number of TLESR events was not related to RE. CONCLUSIONS & INFERENCES In OSA patients, sleep-GER was mainly caused by TLESR, but not by negative intra-esophageal pressure due to OSA.
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Affiliation(s)
- S Kuribayashi
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Gunma, Japan
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Vena D, Poon I, Kusano M, Banihashemi B, Balogh J, MacKenzie R, Davidson J, Higgins K, Enepekides D, Caldwell C. A Preliminary Analysis to Assess Intra-treatment FDG-PET Parameters that Predict for Locoregional Control in Advanced Head and Neck Cancer Treated with Chemoradiation. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Vena D, Poon I, Yu H, Kusano M, MacKenzie R, Balogh J, Banihashemi B, Higgins K, Enepekides D, Davidson J, Caldwell C. 89 THE USE OF AN AUTOMATED SEGMENTATION ALGORITHM AS A METHOD FOR WHOLE TUMOUR ROI DEFINITION TO IMPROVE THE ACCURACY AND STABILITY OF INTRA-TREATMENT FDG ASSESSMENT IN HEAD AND NECK CANCER. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72476-3] [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: 10/27/2022]
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24
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Tsunoda A, Yasuda N, Nakao K, Narita K, Watanabe M, Matsui N, Kusano M. Phase II Study of S-1 Combined with Irinotecan (CPT-11) in Patients with Advanced Colorectal Cancer. Oncology 2009; 77:192-6. [DOI: 10.1159/000236017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 06/12/2009] [Indexed: 11/19/2022]
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Kusano M, Yasukawa K, Inouye K. Insights into the Catalytic Roles of the Polypeptide Regions in the Active Site of Thermolysin and Generation of the Thermolysin Variants with High Activity and Stability. J Biochem 2008; 145:103-13. [DOI: 10.1093/jb/mvn140] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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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Dahele M, Hwang D, Peressotti C, Sun L, Kusano M, Okhai S, Darling G, Yaffe M, Caldwell C, Mah K, Hornby J, Ehrlich L, Raphael S, Tsao M, Behzadi A, Weigensberg C, Ung Y. Developing a methodology for three-dimensional correlation of PET-CT images and whole-mount histopathology in non-small-cell lung cancer. Curr Oncol 2008; 15:62-9. [PMID: 19008992 PMCID: PMC2582510 DOI: 10.3747/co.v15i5.349] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Understanding the three-dimensional (3D) volumetric relationship between imaging and functional or histopathologic heterogeneity of tumours is a key concept in the development of image-guided radiotherapy. Our aim was to develop a methodologic framework to enable the reconstruction of resected lung specimens containing non-small-cell lung cancer (NSCLC), to register the result in 3D with diagnostic imaging, and to import the reconstruction into a radiation treatment planning system. METHODS AND RESULTS We recruited 12 patients for an investigation of radiology-pathology correlation (RPC) in nsclc. Before resection, imaging by positron emission tomography (PET) or computed tomography (CT) was obtained. Resected specimens were formalin-fixed for 1-24 hours before sectioning at 3-mm to 10-mm intervals. To try to retain the original shape, we embedded the specimens in agar before sectioning. Consecutive sections were laid out for photography and manually adjusted to maintain shape. Following embedding, the tissue blocks underwent whole-mount sectioning (4-mum sections) and staining with hematoxylin and eosin. Large histopathology slides were used to whole-mount entire sections for digitization. The correct sequence was maintained to assist in subsequent reconstruction. Using Photoshop (Adobe Systems Incorporated, San Jose, CA, U.S.A.), contours were placed on the photographic images to represent the external borders of the section and the extent of macroscopic disease. Sections were stacked in sequence and manually oriented in Photoshop. The macroscopic tumour contours were then transferred to MATLAB (The Mathworks, Natick, MA, U.S.A.) and stacked, producing 3D surface renderings of the resected specimen and embedded gross tumour. To evaluate the microscopic extent of disease, customized "tile-based" and commercial confocal panoramic laser scanning (TISSUEscope: Biomedical Photometrics, Waterloo, ON) systems were used to generate digital images of whole-mount histopathology sections. Using the digital whole-mount images and imaging software, we contoured the gross and microscopic extent of disease. Two methods of registering pathology and imaging were used. First, selected pet and ct images were transferred into Photoshop, where they were contoured, stacked, and reconstructed. After importing the pathology and the imaging contours to MATLAB, the contours were reconstructed, manually rotated, and rigidly registered. In the second method, MATLAB tumour renderings were exported to a software platform for manual registration with the original pet and ct images in multiple planes. Data from this software platform were then exported to the Pinnacle radiation treatment planning system in DICOM (Digital Imaging and Communications in Medicine) format. CONCLUSIONS There is no one definitive method for 3D volumetric RPC in nsclc. An innovative approach to the 3D reconstruction of resected nsclc specimens incorporates agar embedding of the specimen and whole-mount digital histopathology. The reconstructions can be rigidly and manually registered to imaging modalities such as ct and pet and exported to a radiation treatment planning system.
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Affiliation(s)
- M. Dahele
- Radiation Medicine Program, Princess Margaret Hospital, University Health Network, Toronto, ON
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
| | - D. Hwang
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Pathology (Hwang, Tsao) and Division of Thoracic Surgery (Darling, Hornby), Toronto General Hospital, University Health Network, Toronto, ON
| | - C. Peressotti
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - L. Sun
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - M. Kusano
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - S. Okhai
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - G. Darling
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Pathology (Hwang, Tsao) and Division of Thoracic Surgery (Darling, Hornby), Toronto General Hospital, University Health Network, Toronto, ON
| | - M. Yaffe
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - C. Caldwell
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - K. Mah
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - J. Hornby
- Department of Pathology (Hwang, Tsao) and Division of Thoracic Surgery (Darling, Hornby), Toronto General Hospital, University Health Network, Toronto, ON
| | - L. Ehrlich
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - S. Raphael
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Imaging Research, Sunnybrook Research Institute (Peressotti, Sun, Kusano, Okhai, Yaffe, Caldwell, Mah); Department of Medical Physics (Mah); Department of Medical Imaging (Ehrlich); and Department of Pathology (Raphael), Sunnybrook Health Sciences Centre, Toronto, ON
| | - M. Tsao
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Pathology (Hwang, Tsao) and Division of Thoracic Surgery (Darling, Hornby), Toronto General Hospital, University Health Network, Toronto, ON
| | - A. Behzadi
- Department of Surgery (Behzadi) and Department of Pathology (Weigensberg), The Scarborough Hospital, Toronto, ON
| | - C. Weigensberg
- Department of Surgery (Behzadi) and Department of Pathology (Weigensberg), The Scarborough Hospital, Toronto, ON
| | - Y.C. Ung
- Department of Radiation Oncology (Dahele, Ung), Department of Pathology (Hwang, Mah, Raphael, Tsao), Division of Thoracic Surgery (Darling), Department of Medical Imaging (Ehrlich, Yaffe, Caldwell), and Department of Medical Biophysics (Yaffe, Caldwell), University of Toronto, Toronto, ON
- Department of Radiation Oncology, Odette Cancer Centre, Toronto, ON
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Levy-Cooperman N, Burhan AM, Rafi-Tari S, Kusano M, Ramirez J, Caldwell C, Black SE. Frontal lobe hypoperfusion and depressive symptoms in Alzheimer disease. J Psychiatry Neurosci 2008; 33:218-26. [PMID: 18592038 PMCID: PMC2441884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND Depressive symptoms of varying severity are prevalent in up to 63% of Alzheimer disease (AD) patients and often result in greater cognitive decline and increased caregiver burden. The current study aimed to determine the neural correlates of depressive symptoms in a sample of AD patients. METHODS Using the Cornell Scale for Depression in Dementia, we assessed 56 patients who met criteria for probable AD. Data obtained from Technetium-99m ethyl cysteinate dimer single photon emission computed tomography (SPECT) were analyzed with the use of a magnetic resonance imaging-derived region of interest (ROI) anatomic template before and after atrophy correction and statistical parametric mapping (SPM). The following 4 frontal ROIs were investigated bilaterally: middle frontal gyrus (Brodmann's area [BA] 46), orbitofrontal cortex (BA 11), superior prefrontal (BA 8/9) and anterior cingulate (BA 24/25/32/33). RESULTS Depressive symptoms were present in 27 of the AD patients (48%). Patients with depressive symptoms showed less perfusion in the right superior and bilateral middle frontal gyri (p < 0.005), left superior frontal (p < 0.05) and anterior cingulate gyri (p < 0.005) before atrophy correction. SPM analyses revealed significantly lower perfusion in bilateral dorsolateral and superior prefrontal cortex of patients with depressive symptoms (right, p < 0.005; left, p < 0.05). SPECT ROI analyses with atrophy correction revealed trends similar to data without atrophy correction but did not reach statistical significance. CONCLUSION In this study, depressive symptoms in AD patients were associated with relative hypoperfusion in the prefrontal cortex when they were compared with AD patients without depressive symptoms. These findings are consistent with previous reports in studies of primary depression suggesting that these regions are involved in affect and emotional regulation.
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Affiliation(s)
- Naama Levy-Cooperman
- Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto, Ontario.
| | - Amer M. Burhan
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
| | - Shahryar Rafi-Tari
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
| | - Maggie Kusano
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
| | - Joel Ramirez
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
| | - Curtis Caldwell
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
| | - Sandra E. Black
- Levy-Cooperman, Rafi-Tari, Ramirez, Black — Linda C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto; Burhan — Division of Geriatric Psychiatry, Department of Psychiatry, University of Western Ontario, London; Kusano — Department of Imaging Research; Ramirez, Black — Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre; Black — Division of Neurology, Department of Medicine; Caldwell — Department of Medical Physics; Ramirez, Caldwell, Black — Institute of Medical Science, University of Toronto, Toronto, Ont.
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Tsunoda A, Yasuda N, Nakao K, Yokoyama N, Marumori T, Hashimoto H, Kusano M, West K. Validation of the Japanese version of EORTC QLQ-CR38. Qual Life Res 2007; 17:317-22. [DOI: 10.1007/s11136-007-9298-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 11/30/2007] [Indexed: 11/28/2022]
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29
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Tsunoda A, Yasuda N, Nakao K, Narita K, Yamazaki K, Watanabe M, Suzuki N, Kusano M. Phase I study of S-1 combined with irinotecan (CPT-11) in patients with advanced colorectal cancer. Oncology 2007; 72:58-63. [PMID: 17998791 DOI: 10.1159/000111095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Accepted: 06/20/2007] [Indexed: 11/19/2022]
Abstract
PURPOSE To determine the maximum tolerated dose, recommended dose and dose-limiting toxicities of irinotecan plus S-1 in advanced colorectal cancer. PATIENTS AND METHODS S-1 was administered orally at 80 mg/m2/day for 21 consecutive days followed by a 2-week rest. CPT-11 was given intravenously on days 1 and 15 of each course, at an initial dose of 60 mg/m2/day, stepping up to 80, 100, 120 or 140 mg/m2/day. Courses were repeated every 5 weeks, unless disease progression or severe toxicities were observed. RESULTS A total of 20 patients were entered in this study. The maximum tolerated dose of CPT-11 was considered to be 100 mg/m2, because 2 of 3 patients developed dose-limiting toxicities, such as anorexia, fatigue and diarrhea. Therefore, the recommended dose of CPT-11 was set at 80 mg/m2. Tumor responses were seen in 8 of 14 patients with measurable lesions. CONCLUSION A combination of S-1 with CPT-11 is safe and can be recommended for further phase II studies in patients with advanced colorectal cancer.
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Affiliation(s)
- A Tsunoda
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan.
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30
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Shimoyama Y, Kusano M, Kawamura O, Zai H, Kuribayashi S, Higuchi T, Nagoshi A, Maeda M, Mori M. High-viscosity liquid meal accelerates gastric emptying. Neurogastroenterol Motil 2007; 19:879-86. [PMID: 17973639 DOI: 10.1111/j.1365-2982.2007.00972.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [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: 01/24/2023]
Abstract
Adding pectin to an elemental formula increases its viscosity through gelatinization, thus presumably preventing gastro-oesophageal reflux and aspiration pneumonia. We investigated the influence of the viscosity of an elemental formula on gastric emptying. Eleven healthy volunteers underwent three tests at intervals of >1 week. After fasting for >8 h, each subject received a test meal (enteral nutrition solution, enteral solution plus pectin, or water). Then gastric emptying (continuous (13)C breath test), gastro-oesophageal intraluminal pressures, oesophageal pH, and blood levels of glucose, insulin and gastrin were all measured simultaneously. The gastric emptying coefficient was significantly increased by adding pectin to enteral nutrition (3.01 +/- 0.10 vs 2.78 +/- 0.10, mean +/- SE, P < 0.05). The antral motility index was also significantly higher with pectin than without at 45-60 min and 60-75 min after the test meal (526 +/- 237 vs 6.5 +/- 4.6 mmHg s(-1) and 448 +/- 173 vs 2.3 +/- 2.3 mmHg s(-1) respectively; P < 0.05). Plasma glucose was significantly higher with pectin than without it at 60 min after ingestion (141.5 +/- 6.03 vs 125.8 +/- 4.69 microM mL(-1), P < 0.05). In healthy individuals, pectin increased the viscosity of enteral nutrition and accelerated gastric emptying.
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Affiliation(s)
- Y Shimoyama
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Gunma, Japan
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31
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Moki F, Kusano M, Mizuide M, Shimoyama Y, Kawamura O, Takagi H, Imai T, Mori M. Association between reflux oesophagitis and features of the metabolic syndrome in Japan. Aliment Pharmacol Ther 2007; 26:1069-75. [PMID: 17877514 DOI: 10.1111/j.1365-2036.2007.03454.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [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: 12/13/2022]
Abstract
BACKGROUND There have been many reports about the relationship between reflux oesophagitis and obesity, but not the metabolic syndrome. AIM To review upper gastrointestinal endoscopic findings and screening data obtained in healthy subjects, and assess relations between reflux oesophagitis and features of the metabolic syndrome. METHODS In 3599 men and 1560 women, the prevalence of reflux oesophagitis was assessed in relation to the age, body mass index, blood pressure, triglycerides and fasting blood glucose. Logistic regression analysis was used to calculate odds ratio for risk factors. RESULTS The overall prevalence of reflux oesophagitis was 4%, and it increased with age in women. Prevalence of reflux oesophagitis increased significantly with an increase of body mass index, blood pressure, triglycerides and fasting blood glucose. On multivariate analysis, male sex (odds ratio: 2.5; 95% confidence interval: 1.6-3.8), obesity (1.9; 1.4-2.5), hyperglycaemia (1.7; 1.2-2.4) and hypertension (1.5; 1.1-2.1) were independent risk factors for reflux oesophagitis. Among both men and women, those with reflux oesophagitis were significantly more likely to have two or more of these risk factors than non-reflux oesophagitis subjects. CONCLUSIONS Components of the metabolic syndrome are associated with the occurrence of reflux oesophagitis. Therefore, some risk factors may be common to reflux oesophagitis and the metabolic syndrome.
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Affiliation(s)
- F Moki
- Gunma Health Foundation, Maebashi, Japan
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32
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Imada T, Zai H, Kusano M, Fujita S, Kawai M, Okiyama A, Shimoyama Y, Maeda M, Nagoshi A, Higuchi T, Kuribayashi S, Kawamura O, Mori M, Tanaka T, Uneyama H. Effect of dietary-free glutamate on gastric emptying rate and postprandial sensation for protein-rich liquid diet. Appetite 2007. [DOI: 10.1016/j.appet.2007.03.096] [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: 10/23/2022]
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33
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Waseda M, Murakami M, Kato T, Kusano M. Helium gas pneumoperitoneum can improve the recovery of gastrointestinal motility after a laparoscopic operation. MINIM INVASIV THER 2007; 14:14-8. [PMID: 16754148 DOI: 10.1080/13645700510010782] [Citation(s) in RCA: 3] [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: 10/25/2022]
Abstract
The use of laparoscopic surgery contributes to faster recovery of postoperative gastrointestinal motility. Several authors have demonstrated the benefits of laparoscopic surgery using carbon dioxide (CO2) pneumoperitoneum. However, there have been few investigations of the effects of other insufflation gases on gastrointestinal motility. The aim of this study was to investigate the effect of CO2 and helium pneumoperitoneum on the recovery of postoperative gastrointestinal motility. For this study, male Sprague-Dawley rats were divided into four groups: control, CO2 insufflation (10 mmHg), helium insufflation (10 mmHg) and open laparotomy for one hour. Arterial pH values and PaCO2 were measured after surgery. Gastrointestinal motility was evaluated by quantifying the distribution of markers placed into the stomach at the end of procedures until 24 hours after surgery. In the CO2 insufflation group, the arterial pH value was significantly lower than that of the helium insufflation group, and significant hypercapnia persisted until six hours after surgery. The gastric emptying and transit time was significantly prolonged in the CO2 group compared with the helium insufflation group. This study demonstrates that helium pneumoperitoneum can improve the recovery of postoperative gastrointestinal motility because of the reduction of hypercapnia and a tendency to suffer acidosis compared with CO2 pneumoperitoneum.
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Affiliation(s)
- M Waseda
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan.
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34
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Tajima Y, Yamazaki K, Makino R, Nishino N, Masuda Y, Aoki S, Kato M, Morohara K, Kusano M. Differences in the histological findings, phenotypic marker expressions and genetic alterations between adenocarcinoma of the gastric cardia and distal stomach. Br J Cancer 2007; 96:631-8. [PMID: 17262083 PMCID: PMC2360051 DOI: 10.1038/sj.bjc.6603583] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Adenocarcinoma of the gastric cardia (C-Ca) is possibly a specific subtype of gastric carcinoma. The purpose of this study was to clarify the differences in the clinicopathological characteristics between C-Ca and adenocarcinoma of the distal stomach (D-Ca), and also the differences in the expressions of gastric and intestinal phenotypic markers and genetic alterations between the two. The clinicopathological findings in 72 cases with C-Ca were examined and compared with those in 170 cases with D-Ca. The phenotypic marker expressions examined were those of human gastric mucin (HGM), MUC6, MUC2 and CD10. Furthermore, the presence of mutations in the APC, K-ras and p53 genes and the microsatellite instability status of the tumour were also determined. C-Ca was associated with a significantly higher incidence of differentiated-type tumours and lymphatic vessel invasion (LVI) as compared with D-Ca (72.2 vs 48.2%, P=0.0006 and 72.2 vs 55.3%, P=0.0232, respectively). Oesophageal invasion by the tumour beyond the oesophago-gastric junction (OGJ) was found in 56.9% of cases with C-Ca; LVI in the area of oesophageal invasion was demonstrated in 61% of these cases. Also, LVI was found more frequently in cases of C-Ca with oesophageal invasion than in those without oesophageal invasion (82.9 vs 58.1%, P=0.0197). The incidence of undifferentiated-type tumours was significantly higher in cases with advanced-stage C-Ca than in those with early-stage C-Ca (5 vs 36.5%, P=0.0076). A significantly greater frequency of HGM expression in early-stage C-Ca and significantly lower frequency of MUC2 expression in advanced-stage C-Ca was observed as compared with the corresponding values in cases of D-Ca (78.9 vs 52.2%, P=0.0402 and 51.5 vs 84.6%, P=0.0247, respectively). Mutation of the APC gene was found in only one of all cases of C-Ca, and the frequency of mutation of the APC gene was significantly lower in cases of C-Ca than in those of D-Ca (2.4 vs 20.0%, P=0.0108). The observations in this study suggest that C-Ca is a more aggressive tumour than D-Ca. The differences in biological behavior between C-Ca and D-Ca may result from the different histological findings in the wall of the OGJ and the different genetic pathways involved in the carcinogenesis.
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Affiliation(s)
- Y Tajima
- 1Division of General and Gastroenterological Surgery, Department of Surgery, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan.
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35
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Tsunoda A, Yasuda N, Nakao K, Yokoyama N, Kamiyama G, Marumori T, Yoshizawa Y, Kusano M, Hashimoto H. The Construction and Testing of the Japanese Version of EORTC Colorectal Cancer-specific Quality of Life Questionnaire Module (EORTC QLQ-CR38). ACTA ACUST UNITED AC 2007. [DOI: 10.3862/jcoloproctology.60.69] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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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36
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Konishi K, Takimoto M, Kaneko K, Makino R, Hirayama Y, Nozawa H, Kurahashi T, Kumekawa Y, Yamamoto T, Ito H, Yoshikawa N, Kusano M, Nakayama K, Rembacken BJ, Ota H, Imawari M. BRAF mutations and phosphorylation status of mitogen-activated protein kinases in the development of flat and depressed-type colorectal neoplasias. Br J Cancer 2006; 94:311-7. [PMID: 16404419 PMCID: PMC2361104 DOI: 10.1038/sj.bjc.6602911] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Although some molecular differences between flat-depressed neoplasias (FDNs) and protruding neoplasias (PNs) have been reported, it is uncertain if the BRAF mutations or the status of phosphorylated mitogen-activated protein kinase (p-MAPK) are different between theses two groups. We evaluated the incidence of BRAF and KRAS mutations, high-frequency microsatellite instability (MSI-H), and the immunohistochemical status of p-MAPK in the nonserrated neoplasias (46 FDNs and 57 PNs). BRAF mutations were detected in four FDNs (9%) and none of PNs (P=0.0369 by Fisher's exact test). KRAS mutations were observed in none of FDNs and in 14 PNs (25%; P=0.0002 by Fisher's exact test). MSI-H was detected in seven out of 44 FDNs (16%) and in one out of 52 of PNs (2%) (P=0.022 by Fisher's exact test). Type B and C immunostaining for p-MAPK was observed in 34 out of 46 FDNs (72%), compared with 24 out of 55 PNs (44%; P=0.0022 by χ2 test). There was no significant difference in the type B and C immunostaining of p-MAPK between FDNs with and without BRAF mutations. BRAF and KRAS mutations are mutually exclusive in the morphological characteristics of colorectal nonserrated neoplasia. Abnormal accumulation of p-MAPK protein is more likely to be implicated in the tumorigenesis of FDNs than of PNs. However, this abnormality in FDNs might occur via the genetic alteration other than BRAF or KRAS mutation.
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Affiliation(s)
- K Konishi
- Second Department of Internal Medicine, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan.
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37
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Hachiro Y, Kunimoto M, Abe T, Kusano M. A New Sclerosing Therapy for Internal Hemorrhoids: Experience in 200 Cases with Zione Injection. ACTA ACUST UNITED AC 2006. [DOI: 10.3862/jcoloproctology.59.317] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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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38
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Hua L, Aoki T, Jin Z, Nishino N, Yasuda D, Izumida Y, Morohara K, Koizumi T, Shimizu Y, Murai N, Kusano M. Elevation of serum albumin levels in nagase analbuminemic rats by allogeneic bone marrow cell transplantation. Eur Surg Res 2005; 37:111-4. [PMID: 15905617 DOI: 10.1159/000084542] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2004] [Accepted: 12/30/2004] [Indexed: 01/13/2023]
Abstract
We investigated the feasibility of correcting the congenital absence of albumin in Nagase analbuminemic rats (NARs) by allogeneic bone marrow cell transplantation (BMT). Seven-week-old male NARs were used as recipients, and 6- to 8-week-old male Sprague-Dawley (SD) rats were used as allograft donors. NARs were divided into three groups: a BMT group (n=10) in which bone marrow cells were infused into the liver; a hepatocyte transplantation (HCT) group (n=8) in which hepatocytes were transplanted into the liver, and a control group (n=8) in which PBS was injected into the portal vein. Serum albumin levels were measured as an indicator of the function of the grafted cells, and the phenotypic characteristics of the engrafted cells in the recipient's liver were assessed with immunohistochemical and immunofluorescence techniques. At 8 weeks after cell transplantation, the serum albumin levels of the BMT group and HCT group were significantly higher than in the control group. The hepatocyte-like cells derived from bone marrow cells expressed albumin in liver of the NARs. According to this result, bone marrow cells can differentiate into hepatocyte-like cells in vivo. The results show that BMT is an effective treatment for congenital analbuminemia in a rat model and suggest that allogeneic BMT can be used as an efficient therapy for hereditary metabolic diseases.
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Affiliation(s)
- L Hua
- Second Department of Surgery, School of Medicine, Showa University, Tokyo, Japan, China
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39
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Kusano M, Caldwell C, Ravi A. Sci-AM1 Sat - 05: Fractal and motion modeling of PET/CT tumours. Med Phys 2005. [DOI: 10.1118/1.2031046] [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: 11/07/2022] Open
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40
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Abstract
Gastro-oesophageal reflux disease (GERD) encompasses a wide range of disorders defined by either reflux-related symptoms or by complications of gastro-oesophageal reflux. The most characteristic GERD symptoms are heartburn and acid regurgitation. Patients with these symptoms are in most cases easily identifiable and diagnosis is made on the basis of symptoms alone. For patients with a decreased frequency of heartburn, diagnosis is more difficult, and endoscopy is the single best test for diagnosis of GERD. A major difference between the West and Asia is the frequency of endoscopic investigation. In Japan, the earlier high prevalence of stomach cancers resulted in the increased use of endoscopy as an investigational tool for dyspeptic symptoms and today endoscopy continues to be widely available as a diagnostic tool. However, the overall sensitivity of endoscopy for the diagnosis of GERD is less than 50% since not all patients will have oesophagitis at the time of endoscopy. Ambulatory pH monitoring is therefore a frequently used diagnostic tool as it allows correlation between reflux events and symptoms, and is especially useful in patients with atypical or extraoesophageal symptoms. Oesophageal manometry is also an excellent test to evaluate oesophageal function and to measure sphincter pressure and while it may not provide an unequivocal diagnosis of GERD it is a useful tool with which to evaluate oesophageal function.
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Affiliation(s)
- M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Gunma 371-8511, Japan.
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41
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Tajima Y, Yamazaki K, Nishino N, Morohara K, Yamazaki T, Kaetsu T, Suzuki S, Kawamura M, Kumagai K, Kusano M. Gastric and intestinal phenotypic marker expression in gastric carcinomas and recurrence pattern after surgery-immunohistochemical analysis of 213 lesions. Br J Cancer 2004; 91:1342-8. [PMID: 15354218 PMCID: PMC2409904 DOI: 10.1038/sj.bjc.6602147] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Both gastric and intestinal phenotypic markers are known to be expressed in gastric carcinomas, irrespective of their histologic type. In the present study, the relation between gastric and intestinal phenotypic marker expression in gastric carcinomas and the recurrence pattern after surgery was examined. The phenotypic marker expression of the tumour was determined by examining the expression of human gastric mucin (HGM), MUC6, MUC2 and CD10 in 213 advanced gastric carcinomas in 213 patients who had undergone a curative resection (97 died from recurrent gastric carcinoma and 116 were alive without recurrence at the end of the follow-up period). Tumours were classified into gastric (G), gastric and intestinal mixed (GI), intestinal (I) or unclassified (UC) phenotypes according to the immunopositivity of HGM, MUC6, MUC2 and CD10 stainings. The incidence of HGM-positive tumours and MUC2-negative tumours was significantly higher in tumours with peritoneal recurrence than in tumours without recurrence (73.3%, 44 out of 60 cases vs 54.3%, 63 out of 116 (P=0.022); and 70.0%, 42 out of 60 vs 38.8%, 45 out of 116 (P=0.0002), respectively). The incidence of G-phenotype tumours was also significantly higher in tumours with peritoneal recurrence than in tumours without recurrence (58.3%, 35 out of 60 cases vs 28.4%, 33 out of 116 (P=0.0002)). The incidence of MUC2-negative tumours and CD10-positive tumours was significantly higher in tumours with haematogenous recurrence than in tumours without recurrence (62.5%, 20 out of 32 cases vs 38.8%, 45 out of 116 (P=0.028); and 43.8%, 14 out of 32 vs 23.3%, 27 out of 116 (P=0.039); respectively). Our present findings show that the gastric and intestinal phenotypic marker expression of the tumour, determined by immunohistochemical staining for HGM, MUC6, MUC2 and CD10, can be used to predict the pattern of gastric carcinoma recurrence after curative resection.
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Affiliation(s)
- Y Tajima
- Department of Surgery, Division of General & Gastroenterological Surgery, Showa University, School of Medicine, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan.
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42
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Kaneko K, Kurahashi T, Makino R, Konishi K, Ito H, Katagiri A, Kumekawa Y, Hirayama Y, Yoneyama K, Kushima M, Kusano M, Tajiri H, Rembacken BJ, Mitamura K, Imawari M. Pathological features and genetic alterations in colorectal carcinomas with characteristics of nonpolypoid growth. Br J Cancer 2004; 91:312-8. [PMID: 15213719 PMCID: PMC2409809 DOI: 10.1038/sj.bjc.6601965] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We sought to clarify pathological features and genetic alterations in colorectal carcinomas with characteristics of nonpolypoid growth. Colorectal carcinomas resected at Showa University Hospital in Tokyo included 86 with characteristics of polypoid growth (PG) and 21 with those of nonpolypoid growth (NPG). Mutations of APC, Ki-ras, and p53 genes, as well as microsatellite instability (MSI), were analysed using fluorescence-based polymerase chain reaction–single-strand conformation polymorphism (PCR–SSCP). Carcinomas with an NPG pattern were smaller than PG tumours (P<0.0001). Carcinomas with a PG pattern were more likely to harbour Ki-ras mutations (36%) than NPG tumours (0%; P<0.0001). Mutation types in the APC gene differed significantly between PG and NPG carcinomas (P=0.0189), including frameshift mutations in 66% of PG carcinomas but no NPG carcinomas. Presence of a p53 mutation at a ‘hot spot’ also was more likely in PG carcinomas (37%) than in NPG carcinomas (0%; P=0.0124). No significant difference in presence of MSI was evident between carcinomas with PG and NPG patterns. In conclusion, significant genetic differences were evident between carcinomas with PG and NPG patterns. Genetic changes in NPG carcinomas differed from those of the conventional adenoma–carcinoma sequence. Assuming that some nonpolypoid growth lesions transform rapidly into advanced carcinomas, 20% of all colorectal carcinomas may progress in this manner.
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Affiliation(s)
- K Kaneko
- Second Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan.
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Satoh A, Toyota M, Itoh F, Kikuchi T, Obata T, Sasaki Y, Suzuki H, Yawata A, Kusano M, Fujita M, Hosokawa M, Yanagihara K, Tokino T, Imai K. DNA methylation and histone deacetylation associated with silencing DAP kinase gene expression in colorectal and gastric cancers. Br J Cancer 2002; 86:1817-23. [PMID: 12087472 PMCID: PMC2375414 DOI: 10.1038/sj.bjc.6600319] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [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] [Subscribe] [Scholar Register] [Received: 12/24/2001] [Revised: 03/20/2002] [Accepted: 03/21/2002] [Indexed: 12/30/2022] Open
Abstract
Death-associated protein kinase is a positive regulator of programmed cell death induced by interferon gamma. To investigate the role of epigenetic inactivation of death-associated protein kinase in gastrointestinal cancer, we examined the methylation status of the 5' CpG island of the death-associated protein kinase gene. Methylation of the 5' CpG island was detected in 3 of 9 colorectal and 3 of 17 gastric cancer cell lines, while among primary tumours, it was detected in 4 of 28 (14%) colorectal and 4 of 27 (15%) gastric cancers. By contrast, methylation of the edge of the CpG island was detected in virtually every sample examined. Death-associated protein kinase expression was diminished in four cell lines that showed dense methylation of the 5' CpG island, and treatment with 5-aza-2'-deoxycitidine, a methyltransferase inhibitor, restored gene expression. Acetylation of histones H3 and H4 in the 5' region of the gene was assessed by chromatin immunoprecipitation and was found to correlate directly with gene expression and inversely with DNA methylation. Thus, aberrant DNA methylation and histone deacetylation of the 5' CpG island, but not the edge of the CpG island, appears to play a key role in silencing death-associated protein kinase expression in gastrointestinal malignancies.
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Affiliation(s)
- A Satoh
- First Department of Internal Medicine, Sapporo Medical University, S-1, W-16, Chuo-ku, Sapporo 060-8543, Japan
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44
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Kusayanagi S, Kaneko K, Yamamura F, Hirakawa M, Miyasaka N, Konishi K, Kurahashi T, Yoshikawa N, Tsunoda A, Kusano M, Mitamura K. Histological findings after placement of a self-expanding stent in rectal carcinoma with complete obstruction--case report. Hepatogastroenterology 2002; 49:412-5. [PMID: 11995462] [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: 02/24/2023]
Abstract
Patients with acute obstruction due to colorectal carcinomas frequently require emergency surgery. However, such emergency procedures are associated with various complications, a high mortality rate and a poor prognosis. If the obstruction could be immediately relieved, the patient could later undergo an elective operation with a much better prognosis. Recently, expanding metallic stents have been used to treat obstruction due to colorectal carcinoma. In the case reported here, we initially inserted a colonoscopic retrograde bowel drainage tube per anus to achieve decompression. We then placed a self-expanding metallic stent, since we anticipated a prolonged preoperative period due to high fever, congestive heart failure, cerebral infarction, and persistent high blood sugar concentrations. The patient had no complications for 57 days after placement of the stent, and eventually underwent an elective operation. Histologically, the side of the cancerous lesion compressed by the stent was thin and consisted solely of a serosal layer. Implantation of a metallic stent is safe for the treatment of acute malignant obstruction. Stent placement is indicated not only as a palliative treatment for inoperable or recurrent cases, but also as a preoperative procedure before elective surgical resection.
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Affiliation(s)
- S Kusayanagi
- Second Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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45
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Tajima Y, Shimoda T, Nakanishi Y, Yokoyama N, Tanaka T, Shimizu K, Saito T, Kawamura M, Kusano M, Kumagai K. Gastric and intestinal phenotypic marker expression in gastric carcinomas and its prognostic significance: immunohistochemical analysis of 136 lesions. Oncology 2002; 61:212-20. [PMID: 11574777 DOI: 10.1159/000055377] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.1] [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: 12/17/2022]
Abstract
OBJECTIVE It is well known that both gastric and intestinal phenotypic cell markers are expressed in gastric carcinomas, irrespective of their histologic type. However, the clinicopathologic significance of these expressions has not yet been clarified. METHODS We analyzed the correlations among gastric and intestinal phenotypic marker expression patterns of the tumor, clinicopathologic findings and the patient's outcome in 136 advanced gastric carcinomas. RESULTS Phenotypic marker expression was immunohistochemically evaluated using the monoclonal antibodies 45M1 (anti-human gastric mucin; HGM), CLH5 (anti-MUC6), Ccp58 (anti-MUC2) and 56C6 (anti-CD10). All tumors were classified as gastric (G), gastric and intestinal mixed (GI), intestinal (I) or unclassified (UC) phenotype. Of the 136 gastric carcinomas, 50 (36.8%), 56 (41.2%), 21 (15.4%) and 9 (6.6%) were classified as G, GI, I and UC phenotype, respectively. The G-phenotype tumors were associated with a higher rate of undifferentiated-type and infiltrative histology as compared with the I-phenotype tumors (p < 0.05 and p < 0.001, respectively). Furthermore, both univariate and multivariate analysis of survival revealed the G-phenotype tumor to be associated with a significantly poorer outcome than the I-phenotype tumor (p < 0.05). CONCLUSION Our present results indicate that the gastric and intestinal phenotypic marker expression pattern of tumors, determined by the combination of HGM, MUC6, MUC2 and CD10 expression, is prognostically useful for patients with gastric carcinoma.
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Affiliation(s)
- Y Tajima
- Department of Surgery, Toyosu Hospital, Showa University, Tokyo, Japan
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46
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Ota A, Kusano M, Ishii H, Hoshino M, Nakamura A, Koike Y, Enosawa T, Oyama S. A new reconstructive procedure after segmental pancreatectomy: an experimental study of pancreatic end-to-end (duct-to-duct) anastomosis. J Hepatobiliary Pancreat Surg 2002; 8:342-8. [PMID: 11521179 DOI: 10.1007/s005340170006] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 10/12/2000] [Accepted: 02/15/2001] [Indexed: 11/24/2022]
Abstract
We produced experimental models of pancreatic end-to-end anastomosis, including ductal end-to-end anastomosis (with or without stent) and pancreaticojejunostomy, using mongrel dogs, with a view to evaluating reconstructive procedures after segmental pancreatectomy. We examined macroscopic findings, pancreatograms, and microangiographic and histopathological findings to determine whether pancreatic end-to-end anastomosis was as practicable as pancreaticojejunostomy. Macroscopic findings showed no suture failure in any animal in the end-to-end anastomosis group. Pancreatography revealed obstruction of the stent tube in the stent subgroup, but good patency in the no-stent subgroup. On the imaging of the microvasculature in the end-to-end anastomosis group, proliferation of neovascular vessels and formation of communicating vessels were detected. Histopathologically, no suture failure was detected, and the viability of the pancreatic end-to-end anastomosis was confirmed. From this experiment, we concluded it that it was possible to employ pancreatic end-to-end anastomosis after segmental pancreatectomy in the clinical situation.
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Affiliation(s)
- A Ota
- Department of Surgery, Division of General and Gastroenterological Surgery, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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47
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Ota A, Kusano M, Ishii H, Hoshino M, Nakamura A, Koike Y, Enosawa T, Oyama S. A new reconstructive procedure after segmental pancreatectomy: an experimental study of pancreatic end-to-end (duct-to-duct) anastomosis. J Hepatobiliary Pancreat Surg 2001. [PMID: 11521179 DOI: 10.1007/s0053410080342] [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] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
We produced experimental models of pancreatic end-to-end anastomosis, including ductal end-to-end anastomosis (with or without stent) and pancreaticojejunostomy, using mongrel dogs, with a view to evaluating reconstructive procedures after segmental pancreatectomy. We examined macroscopic findings, pancreatograms, and microangiographic and histopathological findings to determine whether pancreatic end-to-end anastomosis was as practicable as pancreaticojejunostomy. Macroscopic findings showed no suture failure in any animal in the end-to-end anastomosis group. Pancreatography revealed obstruction of the stent tube in the stent subgroup, but good patency in the no-stent subgroup. On the imaging of the microvasculature in the end-to-end anastomosis group, proliferation of neovascular vessels and formation of communicating vessels were detected. Histopathologically, no suture failure was detected, and the viability of the pancreatic end-to-end anastomosis was confirmed. From this experiment, we concluded it that it was possible to employ pancreatic end-to-end anastomosis after segmental pancreatectomy in the clinical situation.
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Affiliation(s)
- A Ota
- Department of Surgery, Division of General and Gastroenterological Surgery, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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48
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Enami Y, Kato H, Murakami M, Fujioka T, Aoki T, Niiya T, Murai N, Ohtsuka K, Kusano M. Anti-transforming growth factor-beta1 antibody transiently enhances DNA synthesis during liver regeneration after partial hepatectomy in rats. J Hepatobiliary Pancreat Surg 2001; 8:250-8. [PMID: 11455488 DOI: 10.1007/s005340170025] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2000] [Accepted: 02/15/2001] [Indexed: 12/14/2022]
Abstract
The regulation of liver regeneration after partial hepatectomy (PHx) is complex and involves many different cytokines. We investigated the role of one of these, transforming growth factor-beta1 (TGF-beta1), an inhibitor of liver regeneration, in a Wistar male rat model, in which anti-TGF-beta1 antibody was injected immediately or 24 h after 70% PHx. Livers from treated animals contained an increased number of cells in S phase, according to 5-bromo-2'-deoxyuridine (BrdU) labeling 36 h after PHx. Antibody administration 24 h after PHx resulted in the highest peak of proliferation; moreover, peak MIB-5 labeling was also observed at that time. However, neither residual liver-weight-to-body-weight ratios nor regeneration rates differed significantly between any of the animals. Therefore, we also measured levels of serum TGF-beta1 and hepatocyte growth factor (HGF; an activator). With antibody administration at 0 or 24 h, TGF-beta1 levels were diminished at 24 or 36 h as compared with levels in control rats, but then rebounded, reaching a delayed peak at 48 or 72 h after PHx, respectively. Interestingly, there were also similar trends in HGF levels. These results indicate that TGF-beta1 may inhibit the G1 checkpoint, and serum TGF-beta1 concentration may influence HGF to regulate liver regeneration and to maintain homeostasis of proliferation after PHx.
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Affiliation(s)
- Y Enami
- Second Department of Surgery, School of Medicine, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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Tajima Y, Nakanishi Y, Yoshino T, Kokawa A, Kusano M, Shimoda T. Clinicopathological study of early adenocarcinoma of the gastric cardia: comparison with early adenocarcinoma of the distal stomach and esophagus. Oncology 2001; 61:1-9. [PMID: 11474241 DOI: 10.1159/000055345] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [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: 11/19/2022]
Abstract
To clarify the clinicopathological characteristics of adenocarcinoma of the gastric cardia (AGC), including its association with Barrett's esophagus and intestinal metaplasia, 49 surgically resected early AGCs (EAGCs) were examined clinicopathologically, histopathologically, histochemically, and immunohistochemically. The clinicopathological characteristics of the patients with EAGC were compared with those of 293 patients with early adenocarcinoma of the distal stomach (EADS) and 7 patients with early adenocarcinoma of the esophagus (EAE). Histochemical staining with paradoxical concanavalin A (ConA) and immunohistochemical staining with monoclonal antibodies 45M1, Ccp58, and 56C6 were performed to investigate the differentiation phenotype of the tumor. ConA and 45M1 were used for markers of the gastric phenotype, and Ccp58 and 56C6 were used for markers of the intestinal phenotype. EAGC was associated with a higher mean age (p < 0.0001), a higher male-to-female ratio (p < 0.05), a higher incidence of elevated-type tumors (p < 0.0001), a higher incidence of differentiated-type tumors (p < 0.0001), and greater depth of invasion (p < 0.05) compared with EADS. EAE was associated with a higher incidence of elevated-type tumors (p < 0.001), a higher incidence of differentiated-type tumors (p < 0.05), and larger tumor size (p < 0.05) compared with EADS. The prevalence of Barrett's esophagus in patients with EAGC was significantly lower than in patients with EAE (10.2%, 5/49 patients vs. 100%, 7/7; p < 0.0001). The prevalence of intestinal (Barrett's) metaplasia in surrounding non-neoplastic mucosa in patients with EAGC was significantly lower than in patients with EADS or EAE (36.7%, 18/49 patients vs. 72.0%, 211/293 and 85.7%, 6/7; p < 0.0001 and p < 0.05, respectively). EAGC was associated with a higher incidence of tumors that reacted positively for gastric phenotype markers alone than EADS (32.7%, 16/49 cases vs. 17.1%, 50/293; p < 0.05) and a lower incidence of tumors that reacted positively for both gastric and intestinal markers than EADS or EAE (40.8%, 20/49 cases vs. 59.7%, 175/293 and 85.7%, 6/7; p < 0.05, respectively). Our findings indicate that AGC forms a specific category different from both adenocarcinoma of the distal stomach and esophagus in terms of association with Barrett's esophagus or intestinal metaplasia, and the differentiation phenotype of the tumor.
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Affiliation(s)
- Y Tajima
- Clinical Laboratory Division, National Cancer Center Hospital and Research Institute, Showa University, Tokyo, Japan
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50
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Ueda K, Nagayama H, Narita K, Kusano M, Aiba M, Yamada M, Takaba T, Shirasawa K. Extended surgery with en bloc resection of the right common iliac vessels for lymph node metastasis of mucinous colon carcinoma: report of a case. Surg Today 2001; 31:238-41. [PMID: 11318128 DOI: 10.1007/s005950170176] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We report herein the case of a 63-year-old woman who underwent surgery for recurrent mucinous carcinoma of the cecum. Recurrent metastatic lymph nodes had invaded the right common iliac vessels and right ureter, but she had no distant metastases and no peritoneal dissemination. Extended surgery with en bloc resection of the right iliac vessels and right ureter, and femorofemoral bypass were performed. Postoperatively, several complications developed which were successfully treated by further operations. By 1 year after surgery, she had no recurrent tumors on radiological examination, suggesting that our aggressive surgery with resection of the invaded regional vessels had effectively removed the recurrent tumors. This procedure may therefore significantly prolong the survival time and improve the quality of life of such patients.
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Affiliation(s)
- K Ueda
- Department of Surgery, Yamanashi Red Cross Hospital, Minamitsuru-gun, Japan
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