1
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Yogo K, Sando M, Kobayashi R, Yano G, Ohara N, Kawai K, Takagi K, Kawai S, Kamiya S. Jejunogastric intussusception after pancreaticoduodenectomy: a case report. Surg Case Rep 2022; 8:91. [PMID: 35534691 PMCID: PMC9086021 DOI: 10.1186/s40792-022-01424-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/06/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Jejunogastric intussusception (JGI) is a rare, but potentially fatal complication that can occur following gastric surgery, and the reported incidence of JGI is as low as 0.1%. Early diagnosis and treatment are critical for JGI to prevent major complications such as bowel necrosis and death. Although emergency surgery is the standard treatment, endoscopic reduction has also been reported to be effective in JGI patients without bowel necrosis. Several early recurrent cases treated with surgical or endoscopic reduction have been reported. We report an extremely rare case of JGI after pancreaticoduodenectomy (PD) using Child’s procedure that was successfully treated with surgical reduction and fixation.
Case presentation
An 81-year-old man who had undergone PD using Child’s procedure 3 years ago presented to our hospital with epigastric pain and nausea. His vital signs were stable, and abdominal examination revealed mild tenderness with a palpable mass in the mid-epigastrium. Abdominal computed tomography (CT) and gastroscopy revealed a JGI of the efferent loop, and exploratory laparotomy was immediately performed. During the operation, the efferent loop showed no adhesions and was intussuscepted through the gastrojejunostomy into the gastric lumen. An incision in the anterior wall of the stomach revealed no evidence of ischemia of the intussusceptum. The efferent loop was reduced using Hutchinson’s maneuver and fixed to the afferent loop to prevent a recurrence. The postoperative course was uneventful, and there was no sign of recurrence 12 months postoperatively.
Conclusions
JGI after PD is an extremely rare, but has severe complications. Surgery might be the optimal treatment for JGI in terms of preventing recurrence, even in cases without bowel necrosis.
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2
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Kobayashi R, Ogura A, Kawai S, Takagi K, Kawai K, Maeda T, Sando M, Yogo K, Nagano N, Kamiya S. Laparoscopic surgery for sigmoid colon cancer with complicated communication between the superior and inferior mesenteric arteries. Asian J Endosc Surg 2021; 14:267-270. [PMID: 32790053 DOI: 10.1111/ases.12844] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/24/2020] [Accepted: 07/02/2020] [Indexed: 11/29/2022]
Abstract
To perform complete mesocolic excision with central vessel ligation, it is important to recognize the vessel anomaly and the location of the tumor. For left-sided colon cancer, the variations in the course of the left colic artery and accessary middle colic artery must be recognized preoperatively. Here, we describe our experience with a 57-year-old man who was diagnosed with sigmoid colon cancer with complicated inter-mesenteric connections between the inferior mesenteric artery (IMA) and superior mesenteric artery (SMA), possibly due to median arcuate ligament syndrome. We performed laparoscopic sigmoidectomy with low ligation of the IMA to preserve the extremely enlarged left colic artery. The total operative time was 155 minutes, and the estimated total blood loss was 10 mL. The patient was discharged on postoperative day 9 without any postoperative complications. For patients with vascular anomalies in the left-sided mesocolon, preoperatively ruling out SMA stenosis by using angiography and 3-D CT might be important.
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Affiliation(s)
| | - Atsushi Ogura
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan.,Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoru Kawai
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Kenji Takagi
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Kiyotaka Kawai
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Takashi Maeda
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Masanori Sando
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Konosuke Yogo
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Natsuki Nagano
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
| | - Satoaki Kamiya
- Department of Surgery, Tsushima City Hospital, Tsushima, Japan
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3
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D''Ignazio A, Fujia K, Marrelli D, Marano L, Kamiya S, Hikage M, Tanizawa Y, Bando E, Roviello F, Terashima M. Risk factors for para-aortic nodes metastasis: Preliminary analysis from far Eastern and Western centers. Eur J Surg Oncol 2020. [DOI: 10.1016/j.ejso.2020.06.079] [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] Open
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4
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Kobayashi R, Ogura A, Kawai S, Takagi K, Kawai K, Maeda T, Aritake T, Nagano N, Kamiya S. Cranial-first approach for safe laparoscopic surgery in right-sided colon cancer. Tech Coloproctol 2020; 24:489-490. [PMID: 32040780 DOI: 10.1007/s10151-020-02158-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 02/05/2020] [Indexed: 10/25/2022]
Affiliation(s)
- Ryutaro Kobayashi
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Atsushi Ogura
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan. .,Division of Gastrointestinal Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Satoru Kawai
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Kenji Takagi
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Kiyotaka Kawai
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Takashi Maeda
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Tsukasa Aritake
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Natsuki Nagano
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
| | - Satoaki Kamiya
- Department of Surgery, Tsushima City Hospital, Tsushima City, Aichi, Japan
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5
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Ogura A, Kobayashi R, Kawai S, Takagi K, Kawai K, Maeda T, Aritake T, Nagano N, Kamiya S. Cranial-first approach of laparoscopic left colectomy for T4 descending colon cancer invading the Gerota's fascia. Surg Case Rep 2019; 5:159. [PMID: 31659502 PMCID: PMC6816766 DOI: 10.1186/s40792-019-0720-8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 09/27/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The safety and feasibility of laparoscopic colectomy for T4 colorectal cancer remain controversial. We believe that setting a "Goal" that will guide the surgeons in returning from the deep layer could be the key to safe en bloc resection of neighboring organs. For descending colon cancer, the cranial-first approach makes it possible to clearly visualize the pancreas and origin of the transverse mesocolon, leading to safe splenic flexure mobilization and complete mesocolic excision, which is the strongest advantage of this approach. CASE PRESENTATION A 75-year-old woman was diagnosed with T4 descending colon cancer invading the Gerota's fascia. We performed laparoscopic left colectomy using the cranial-first approach to set a "Goal" at the inferior border of the pancreas for safe resection of the Gerota's fascia. The total operative time was 233 min, and the estimated blood loss was 98 ml. She was discharged after surgery without postoperative complications. Pathological findings revealed the invasion into the Gerota's fascia, and the resection margin was negative for cancer. CONCLUSIONS The cranial-first approach of laparoscopic left colectomy appears to be safe and feasible and could be a promising method for selected patients with T4 descending colon cancer invading the Gerota's fascia.
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Affiliation(s)
- Atsushi Ogura
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan.
| | - Ryutaro Kobayashi
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Satoru Kawai
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Kenji Takagi
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Kiyotaka Kawai
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Takashi Maeda
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Tsukasa Aritake
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Natsuki Nagano
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - Satoaki Kamiya
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
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Klevebro F, Elliott JA, Slaman A, Vermeulen BD, Kamiya S, Rosman C, Gisbertz SS, Boshier PR, Reynolds JV, Rouvelas I, Hanna GB, van Berge Henegouwen MI, Markar SR. Cardiorespiratory Comorbidity and Postoperative Complications following Esophagectomy: a European Multicenter Cohort Study. Ann Surg Oncol 2019; 26:2864-2873. [PMID: 31183640 PMCID: PMC6682565 DOI: 10.1245/s10434-019-07478-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND The impact of cardiorespiratory comorbidity on operative outcomes after esophagectomy remains controversial. This study investigated the effect of cardiorespiratory comorbidity on postoperative complications for patients treated for esophageal or gastroesophageal junction cancer. PATIENTS AND METHODS A European multicenter cohort study from five high-volume esophageal cancer centers including patients treated between 2010 and 2017 was conducted. The effect of cardiorespiratory comorbidity and respiratory function upon postoperative outcomes was assessed. RESULTS In total 1590 patients from five centers were included; 274 (17.2%) had respiratory comorbidity, and 468 (29.4%) had cardiac comorbidity. Respiratory comorbidity was associated with increased risk of overall postoperative complications, anastomotic leak, pulmonary complications, pneumonia, increased Clavien-Dindo score, and critical care and hospital length of stay. After neoadjuvant chemoradiotherapy, respiratory comorbidity was associated with increased risk of anastomotic leak [odds ratio (OR) 1.83, 95% confidence interval (CI) 1.11-3.04], pneumonia (OR 1.65, 95% CI 1.10-2.47), and any pulmonary complication (OR 1.52, 95% CI 1.04-2.22), an effect which was not observed following neoadjuvant chemotherapy or surgery alone. Cardiac comorbidity was associated with increased risk of cardiovascular and pulmonary complications, respiratory failure, and Clavien-Dindo score ≥ IIIa. Among all patients, forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) ratio > 70% was associated with reduced risk of overall postoperative complications, cardiovascular complications, atrial fibrillation, pulmonary complications, and pneumonia. CONCLUSIONS The results of this study suggest that cardiorespiratory comorbidity and impaired pulmonary function are associated with increased risk of postoperative complications after esophagectomy performed in high-volume European centers. Given the observed interaction with neoadjuvant approach, these data indicate a potentially modifiable index of perioperative risk.
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Affiliation(s)
- F Klevebro
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden.
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.
| | - J A Elliott
- Department of Surgery, Trinity College Dublin, Dublin, Ireland
- The National Esophageal and Gastric Center, St. James's Hospital, Dublin, Ireland
| | - A Slaman
- Department of Surgery, Amsterdam University Medical Centers, Cancer Center Amsterdam, University of Amsterdam, Amsterdam, The Netherlands
| | - B D Vermeulen
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - S Kamiya
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - C Rosman
- Radboud University, Nijmegen, The Netherlands
| | - S S Gisbertz
- Department of Surgery, Amsterdam University Medical Centers, Cancer Center Amsterdam, University of Amsterdam, Amsterdam, The Netherlands
| | - P R Boshier
- Department Surgery and Cancer, Imperial College London, London, UK
| | - J V Reynolds
- Department of Surgery, Trinity College Dublin, Dublin, Ireland
- The National Esophageal and Gastric Center, St. James's Hospital, Dublin, Ireland
| | - I Rouvelas
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - G B Hanna
- Department Surgery and Cancer, Imperial College London, London, UK
| | - M I van Berge Henegouwen
- Department of Surgery, Amsterdam University Medical Centers, Cancer Center Amsterdam, University of Amsterdam, Amsterdam, The Netherlands
| | - S R Markar
- Department Surgery and Cancer, Imperial College London, London, UK
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7
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Ogura A, Kobayashi R, Aritake T, Maeda T, Kawai K, Takagi K, Kawai S, Kamiya S. Cranial-first approach for laparoscopic surgery with splenic flexure mobilization. Tech Coloproctol 2019; 23:693-694. [PMID: 31144083 DOI: 10.1007/s10151-019-02010-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 05/18/2019] [Indexed: 11/24/2022]
Affiliation(s)
- A Ogura
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan.
| | - R Kobayashi
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - T Aritake
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - T Maeda
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - K Kawai
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - K Takagi
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - S Kawai
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
| | - S Kamiya
- Department of Surgery, Tsushima City Hospital, 3-73, Tachibana Town, Tsushima City, Aichi, 496-8537, Japan
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8
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Ericson J, Lundell L, Klevebro F, Kamiya S, Nilsson M, Rouvelas I. Long-term weight development after esophagectomy for cancer-comparison between open Ivor-Lewis and minimally invasive surgical approaches. Dis Esophagus 2019; 32:5142515. [PMID: 30351390 DOI: 10.1093/dote/doy075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Indexed: 12/11/2022]
Abstract
Esophagectomy is an extensive procedure with severe postoperative effects. It can be assumed that the greater the trauma, the longer the nutritional recovery. This retrospective observational single-center cohort study compared weight development after esophagectomy with open and minimally invasive techniques. Three groups were compared in this study, one representing the first 41 patients who underwent the minimally invasive McKeown esophagectomy (MIMK). The second group included the first 84 consecutive patients operated with the minimally invasive Ivor-Lewis esophagectomy (MIIL). The third group comprised 100 consecutive patients operated with open thoracoabdominal Ivor-Lewis esophagectomy (IL). Virtually all patients submitted to a minimally invasive esophagectomy (MIE) and the majority with an IL had a jejunal catheter inserted during operation for postoperative enteral feeding. All together 225 patients were included in this study. The mean weight loss during the first year was 13.1% (±4.1), 11.2% (±6.1), and 9.6% (±7.5) in the IL, MIIL, and MIMK group, respectively (P = 0.85 and P = 0.95, respectively). The median duration of postoperative enteral nutrition support varied substantially within the groups and was 23.5 days in the IL group (range: 0-2033 days), 54.5 days in those having an MIIL (range: 0-308 days; P ≤ 0.001) and 57.0 days among patients in the MIMK group (range: 0-538 days; P ≤ 0.022). There was no difference in the risk of losing at least 10% of the preoperative weight at 3 or 6 months postoperatively between the groups. However, in patients who suffered severe complications (Clavien-Dindo score ≥ IIIb) after MIIL, there was a nonsignificant trend toward a lower risk of a 10% or greater weight loss, 3 months postoperatively. In conclusion, the greater surgical trauma associated with the traditional open esophagectomy was not followed by more severe weight loss, or other signs of poorer nutritional recovery, when compared to minimal invasive surgical techniques.
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Affiliation(s)
- J Ericson
- Division of Surgery, Department of Clinical Science, Technology and Intervention (CLINTEC), Karolinska Institutet.,Function area Clinical Nutrition
| | - L Lundell
- Division of Surgery, Department of Clinical Science, Technology and Intervention (CLINTEC), Karolinska Institutet.,Department of Surgery, Centre of Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - F Klevebro
- Division of Surgery, Department of Clinical Science, Technology and Intervention (CLINTEC), Karolinska Institutet.,Department of Surgery, Centre of Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - S Kamiya
- Department of Surgery, Centre of Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - M Nilsson
- Division of Surgery, Department of Clinical Science, Technology and Intervention (CLINTEC), Karolinska Institutet.,Department of Surgery, Centre of Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - I Rouvelas
- Division of Surgery, Department of Clinical Science, Technology and Intervention (CLINTEC), Karolinska Institutet.,Department of Surgery, Centre of Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
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9
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Affiliation(s)
- M Nilsson
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Upper Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - I Rouvelas
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Upper Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - T Irino
- Department of Surgery, Keio University, Tokyo, Japan
| | - S Kamiya
- Division of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - M Hayami
- Department of Upper Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - M Lindblad
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Upper Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
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10
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Klevebro F, Scandavini CM, Kamiya S, Nilsson M, Lundell L, Rouvelas I. Single center consecutive series cohort study of minimally invasive versus open resection for cancer in the esophagus or gastroesophageal junction. Dis Esophagus 2018; 31:4980436. [PMID: 29897443 DOI: 10.1093/dote/doy027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Minimally invasive esophagectomy (MIE) has been introduced at many centers worldwide as evidence is accumulating that it reduces the risk of postoperative morbidity and mortality and decreases the length of hospital stay compared to conventional open esophagectomy. The study is a single institution cohort study of 366 consecutive patients treated with curative intent for cancer in the esophagus or gastroesophageal junction, comparing MIE to open surgery. The outcomes studied were peroperative bleeding, operation time, lymph node yield, complications, length of stay and overall survival. The results showed that MIE was associated with reduced peroperative bleeding and operation time. The patients in the MIE group had a statistically significant reduced risk of postoperative complications, 60.2% compared to 78.8% in the open group. In the MIE group 28.4% of the patients had postoperative complications classified according to the Clavien-Dindo classification system as grade IIIb-V compared to 38.2% in the open group, P = 0.046. Median hospital stay was reduced with 10 days comparing MIE to open surgery, P < 0.001. Mean number of resected lymph nodes was 31 in the MIE group and 22 in the open group (P < 0.001), while the R0 resections were 91.5% versus 85% (P = 0.057). Overall long-term survival was higher in the MIE group, a difference that however did not reach statistical significance (adjusted hazard ratio for three-year survival 0.76, 95% CI 0.54-1.08). In conclusion, MIE at a high volume center with a devoted specialist team reduces the risk of peroperative bleeding, operation time, and severe postoperative complications compared to open surgery for esophageal or junctional cancer. The number of resected lymph nodes was increased and the R0 resections were similar between the groups indicating a good oncological quality of the surgery.
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Affiliation(s)
- F Klevebro
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital.,Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - C M Scandavini
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital.,General and Reconstructive Surgery, Department of Surgical Sciences, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - S Kamiya
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital
| | - M Nilsson
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital.,Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - L Lundell
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital.,Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - I Rouvelas
- Department of Upper Abdominal Surgery, Centre for Digestive Diseases, Karolinska University Hospital.,Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
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11
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Itatsu K, Yokoyama Y, Sugawara G, Kamiya S, Terasaki M, Morioka A, Iyomasa S, Shirai K, Ando M, Nagino M. The Benefits of a Wound Protector in Preventing Incisional Surgical Site Infection in Elective Open Digestive Surgery: A Large-Scale Cohort Study. World J Surg 2018; 41:2715-2722. [PMID: 28608019 DOI: 10.1007/s00268-017-4082-8] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The objective of this study was to evaluate the benefits of wound protectors (WPs) in preventing incisional surgical site infection (I-SSI) in open elective digestive surgery using data from a large-scale, multi-institutional cohort study. METHODS Patients who had elective digestive surgery for malignant neoplasms between November 2009 and February 2011 were included. The protective value of WPs against I-SSI was evaluated. RESULTS A total of 3201 patients were analyzed. A WP was used in 1022 patients (32%). The incident rate of I-SSI (not including organ/space SSI) was 9%. In the univariate and the multivariate analyses for perioperative risk factors for I-SSI, the use of WP was an independent favorable factor that reduced the incidence of I-SSI (odds ratio 0.73, 95% confidence interval 0.55-0.98. P = 0.038). The subgroup forest plot analyses revealed that WP reduced the risk of I-SSI only in patients aged 74 years or younger, males, non-obese patients (body mass index <25 kg/m2), patients with an American Society of Anesthesiologists score of 1/2, patients with a previous history of laparotomy, non-smokers, and patients who underwent colon and rectum operations. In patients who underwent colorectal surgery, the postoperative hospital stay was significantly shorter in patients with WP than those without WP (median 13 vs. 15 days, P = 0.040). In terms of the depth of SSI, WP only prevented superficial I-SSI and did not reduce the incidence of deep I-SSI. CONCLUSIONS WP is a useful device for preventing superficial I-SSI in open elective digestive surgery. TRIAL REGISTRATION NUMBER UMIN000004723.
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Affiliation(s)
- Keita Itatsu
- The Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.,Department of Surgery, Kamiiida Daiichi General Hospital, Nagoya, Japan
| | - Yukihiro Yokoyama
- The Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Gen Sugawara
- The Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Satoaki Kamiya
- Department of Surgery, Tsushima Municipal Hospital, Tsushima, Japan
| | - Masaki Terasaki
- Department of Surgery, Shizuoka Saiseikai General Hospital, Shizuoka, Japan
| | - Atsushi Morioka
- Department of Surgery, Kumiai Kosei Hospital, Takayama, Japan
| | | | - Kazuhisa Shirai
- Department of Surgery, Yamashita Hospital, Ichinomiya, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Masato Nagino
- The Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
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12
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Kato J, Hida T, Sugita S, Hasegawa T, Kamiya S, Horimoto K, Sato S, Sawada M, Uhara H. Cytokeratin 19 expression is a risk factor for metastasis in cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2018; 32:e299-e301. [DOI: 10.1111/jdv.14845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- J. Kato
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - T. Hida
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - S. Sugita
- Surgical Pathology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - T. Hasegawa
- Surgical Pathology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - S. Kamiya
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - K. Horimoto
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - S. Sato
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - M. Sawada
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - H. Uhara
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
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13
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Pepoyan AZ, Balayan MH, Manvelyan AM, Mamikonyan V, Isajanyan M, Tsaturyan VV, Kamiya S, Netrebov V, Chikindas ML. Lactobacillus acidophilus INMIA 9602 Er-2 strain 317/402 probiotic regulates growth of commensal Escherichia coli in gut microbiota of familial Mediterranean fever disease subjects. Lett Appl Microbiol 2017; 64:254-260. [PMID: 28140472 DOI: 10.1111/lam.12722] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 01/24/2017] [Accepted: 01/24/2017] [Indexed: 12/16/2022]
Abstract
Previously, we reported a positive effect the probiotic formulation, Lactobacillus acidophilus INMIA 9602 Er-2 strain 317/402 (Narine strain), had on the blood characteristics of patients with familial Mediterranean fever disease (FMF). The aim of this investigation was to evaluate the effect of the Narine probiotic on growth characteristics in the predominant commensal Escherichia coli isolates from the gut microbiota in FMF-positive study participants. Bacterial growth of 192 prevalent commensal E. coli isolates found in the volunteer participants' guts was evaluated using Verhulst's logistic function. This study showed that the duration of the preparatory growth phase for the E. coli isolates collected from FMF-positive volunteers was significantly shorter, whereas the duration of the logarithmic growth phase was significantly longer (P < 0·03) than that of the isolates collected from healthy participants. The Narine probiotic formulation caused a significant extension (P < 0·001) of the preparatory growth phase in the commensal E. coli isolated from FMF subjects a month after the Narine probiotic administration was terminated. The data suggest that the mathematical model characterizes the growth of commensal E. coli isolates from FMF-positive participants and it can be useful in a decision-making process on the practical use of probiotics during FMF. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first study to demonstrate the effects of Narine, containing the probiotic Lactobacillus acidophilus, on the growth of gut commensal Escherichia coli from study participants with familial Mediterranean fever disease (FMF). Verhulst's logistic function was demonstrated to act as a possible tool for the evaluation and quantification of effects produced by the probiotic formulation in FMF participants.
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Affiliation(s)
- A Z Pepoyan
- Food Safety and Biotechnology Department, Armenian National Agrarian University, Yerevan, Armenia.,International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - M H Balayan
- Food Safety and Biotechnology Department, Armenian National Agrarian University, Yerevan, Armenia.,International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - A M Manvelyan
- Food Safety and Biotechnology Department, Armenian National Agrarian University, Yerevan, Armenia.,International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - V Mamikonyan
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - M Isajanyan
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - V V Tsaturyan
- International Association for Human and Animals Health Improvement, Yerevan, Armenia.,Yerevan State Medical University, Yerevan, Armenia
| | - S Kamiya
- Kyorin University School of Medicine, Tokyo, Japan
| | - V Netrebov
- School of Environmental and Biological Sciences, Rutgers State University, New Brunswick, NJ, USA
| | - M L Chikindas
- School of Environmental and Biological Sciences, Rutgers State University, New Brunswick, NJ, USA.,Center for Digestive Health, New Jersey Institute for Food, Nutrition and Health, New Brunswick, NJ, USA
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14
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Isa K, Oka K, Beauchamp N, Sato M, Wada K, Ohtani K, Nakanishi S, McCartney E, Tanaka M, Shimizu T, Kamiya S, Kruger C, Takahashi M. Safety assessment of the Clostridium butyricum MIYAIRI 588® probiotic strain including evaluation of antimicrobial sensitivity and presence of Clostridium toxin genes in vitro and teratogenicity in vivo. Hum Exp Toxicol 2016; 35:818-32. [DOI: 10.1177/0960327115607372] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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
Probiotics are live microorganisms ingested for the purpose of conferring a health benefit on the host. Development of new probiotics includes the need for safety evaluations that should consider factors such as pathogenicity, infectivity, virulence factors, toxicity, and metabolic activity. Clostridium butyricum MIYAIRI 588® (CBM 588®), an anaerobic spore-forming bacterium, has been developed as a probiotic for use by humans and food animals. Safety studies of this probiotic strain have been conducted and include assessment of antimicrobial sensitivity, documentation of the lack of Clostridium toxin genes, and evaluation of CBM 588® on reproductive and developmental toxicity in a rodent model. With the exception of aminoglycosides, to which anaerobes are intrinsically resistant, CBM 588® showed sensitivity to all antibiotic classes important in human and animal therapeutics. In addition, analysis of the CBM 588® genome established the absence of genes for encoding for α, β, or ε toxins and botulin neurotoxins types A, B, E, or F. There were no deleterious reproductive and developmental effects observed in mice associated with the administration of CBM 588®. These data provide further support for the safety of CBM 588® for use as a probiotic in animals and humans.
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Affiliation(s)
- K Isa
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
| | - K Oka
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
| | | | - M Sato
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
| | - K Wada
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
| | - K Ohtani
- Department of Bacteriology, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - S Nakanishi
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
- Deceased
| | | | - M Tanaka
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
| | - T Shimizu
- Department of Bacteriology, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
- Deceased
| | - S Kamiya
- Department of Infectious Diseases, Kyorin University School of Medicine, Tokyo, Japan
| | - C Kruger
- Spherix Consulting, Rockville, MD, USA
| | - M Takahashi
- Miyarisan Pharmaceutical Co., Ltd, Tokyo, Japan
- Department of Infectious Diseases, Kyorin University School of Medicine, Tokyo, Japan
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15
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Ohta Y, Yoshida K, Kamiya S, Kawate N, Takahashi M, Inaba T, Hatoya S, Morii H, Takahashi K, Ito M, Ogawa H, Tamada H. Feeding hydroalcoholic extract powder ofLepidium meyenii(maca) increases serum testosterone concentration and enhances steroidogenic ability of Leydig cells in male rats. Andrologia 2015; 48:347-54. [DOI: 10.1111/and.12453] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2015] [Indexed: 11/27/2022] Open
Affiliation(s)
- Y. Ohta
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - K. Yoshida
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - S. Kamiya
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - N. Kawate
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - M. Takahashi
- Cooperative Department of Veterinary Medicine; Faculty of Agriculture; Iwate University; Morioka Japan
| | - T. Inaba
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - S. Hatoya
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
| | - H. Morii
- Towa Corporation; Shinjuku-ku Tokyo Japan
| | | | - M. Ito
- Towa Corporation; Shinjuku-ku Tokyo Japan
| | - H. Ogawa
- Faculty of Human Sciences; Tezukayama Gakuin University; Harumidai; Sakai City Osaka Japan
| | - H. Tamada
- Department of Advanced Pathobiology; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Osaka Japan
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16
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Kamiya S, Yoshida T. The contribution made by gaze position to the integration between multisensory feedback and self-body sensations. J Vis 2014. [DOI: 10.1167/14.10.1101] [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: 11/24/2022] Open
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17
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Watanabe K, Nakashima Y, Kamiya S. Effects of Some L-Rhamnosyl Derivatives on the Adsorption of Phage PL-1 to the Host Lactobacillus casei. Biosci Biotechnol Biochem 2014; 56:346. [PMID: 1368309 DOI: 10.1271/bbb.56.346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- K Watanabe
- Faculty of Pharmaceutical Sciences, Fukuoka University, Japan
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18
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Kamiya S, Takeuchi H, Niihara M, Kaburagi T, Nakamura R, Oyama T, Takahashi T, Wada N, Saikawa Y, Kitagawa Y. Availability of sentinel node as predictive index of lymph node metastases to early-stage gastric cancer surgery. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10 Background: Recently, the less invasive surgery for the early gastric cancer attract considerable attention, in particular, sentinel node navigation surgery (SNNS) is expected to be a new strategy. We analyzed the feasibility of sentinel node (SN) biopsy and its accuracy in predicting the lymph node status in patients with early gastric cancer. Methods: Between 1999 and 2009, we have performed the gastrectomy with SN biopsy during an operation in over 500 cases. We focused attention on 115 patients with cT1N0, less or equal 40 mm in size, and isolated gastric cancer and they had undergone the individualized minimizing gastrectomy. Proximal, pylorus-preserving gastrectomy and wedge resections were performed in 51, 54 and 10 patients, respectively. We used a dual procedure with dye- and gamma probe-guided techniques for SN mapping and resected SN and non-SN as was conventionally done for the safety. Results: Subjects were 85 males and 30 females with a mean age of 63.4 years. 53 patients had undergone laparoscopy-assisted gastrectomy. The mean number of SNs was 4.3/case. Of the four patients were SN positive and false-negative was found in one case. The sensitivity of detecting metastases was 80.0% (4/5) and the accuracy was 99.1% (114/115). One case had a recurrence in the liver and no cases without SN metastasis were confirmed any recurrences and metastases. Conclusions: This study showed the diagnostic accuracy of metastasis based on SN was very high, and the minimized resection and lymphadenectomy could be performed safely. No significant financial relationships to disclose.
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Affiliation(s)
- S. Kamiya
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - H. Takeuchi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - M. Niihara
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Kaburagi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - R. Nakamura
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Oyama
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Takahashi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - N. Wada
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - Y. Saikawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - Y. Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
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19
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Niihara M, Takeuchi H, Kamiya S, Kaburagi T, Oyama T, Saikawa Y, Wada N, Takahashi T, Nakamura R, Kitagawa Y. Validation study of sentinel lymph node mapping using radio- and dye-guided methods in gastric cancer: 431 cases at a single institution. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
76 Background: Some papers have reported that sentinel lymph node (SLN) concept can be applied in patients with early gastric cancer, in particular clinically T1N0M0 or T2N0M0 with a tumor diameter of 4cm or less. Little is, however, available on the SLN study with the other criteria than listed above. The aim of the present work was to investigate the accuracy of the SLN biopsy of gastric cancer with various stages and evaluate the indication for SLN navigated gastrectomy. Methods: A total of 431 consecutive patients were diagnosed with operable gastric cancer during the period April 1999 through December 2007. Reasons for inclusion were, in principle, T1N0M0 or T2N0M0 gastric cancer. However, several patients diagnosed preoperatively with T3N0M0, T2N1M0, remnant gastric cancer, multiple gastric cancers and additional treatment after endoscopic therapy were also enrolled in this study according to their request. All patients underwent a radical gastrectomy with SLN mapping with an informed consent. The SLNs were identified using both radio-guided and dye-guided method. Results: Detection rate of hot and/or blue node was 95.8% (413/431). The accuracy of metastatic status based on SLN was 97.6% (403/413). In six of 10 false-negative cases, some clinical backgrounds and problems were present; scirrhous gastric cancer, the tumor penetration of serosa, multiple lesions, remnant gastric cancer after partial resection and the technical issue of tracer injection. Nine of these 10 false-negative cases had the metastatic lymph nodes within only the sentinel basins. Specifically, in the group of clinically T1N0M0 untreated gastric cancer with a tumor diameter of 4 cm or less, there were only 3 false- negative cases. In addition, all the metastatic lymph nodes of the 3 cases located within the sentinel basins. Conclusions: Our study suggested that SLN concept for untreated early gastric cancer could be validated. The sentinel basin dissection might be used to advantage to improve curativity for gastric cancer. No significant financial relationships to disclose.
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Affiliation(s)
- M. Niihara
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - H. Takeuchi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - S. Kamiya
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Kaburagi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Oyama
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - Y. Saikawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - N. Wada
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - T. Takahashi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - R. Nakamura
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
| | - Y. Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan; Keio University School of Medicine, Tokyo, Japan
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Hori Y, Akimoto R, Hori A, Kato K, Chino D, Matsumoto S, Kamiya S, Watanabe Y. Skin collagen reproduction increased by ascorbic acid derivative iontophoresis by frequent-reversal bipolar electric stimulation. Int J Cosmet Sci 2010. [DOI: 10.1111/j.1468-2494.2010.00577_3.x] [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: 12/01/2022]
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21
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Kamiya S, Sato T. Motion-defined checkerboard pattern reverses VEP's polarity. J Vis 2010. [DOI: 10.1167/3.9.788] [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: 11/24/2022] Open
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22
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Kamiya S, Sato T. Motion- and luminance- defined patterns elicit qualitatively same but quantitatively different VEPs. J Vis 2010. [DOI: 10.1167/1.3.245] [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: 11/24/2022] Open
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23
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Yamanaka H, Asamoto H, Ishizaka T, Kawai S, Matsunaga H, Kitoh Y, Kamiya S, Matsuzaki Y. A Case of Gastric Cancer with Autosomal Dominant Polycystic Kidney Disease. ACTA ACUST UNITED AC 2010. [DOI: 10.5833/jjgs.43.628] [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: 11/11/2022]
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24
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Abstract
AIMS We examined whether the presence of Helicobacter is related to that of Acanthamoeba in river and soil environments. METHODS AND RESULTS The samples (river n = 51, soil n = 75) were collected in Sapporo City, Japan. PCR with primers for Helicobacter genus-specific and standard culture techniques were used to detect helicobacter. Prevalence of acanthamoeba was also evaluated by genus-specific PCR. The prevalence of Helicobacter genus-specific DNA in river water samples and in soil samples was 88% and 0%, respectively. No successful culture of helicobacter was achieved. The prevalence of Acanthamoeba genus-specific DNA in river samples and in soil samples was 61% and 96%, respectively. No statistical correlation between the prevalence of helicobacter and either that of acanthamoeba or water quality parameters (pH, turbidity and coliform group) except for temperature was found. CONCLUSIONS We revealed the presence of helicobacter in river water and non-existence of helicobacter in soil. However, the distribution of helicobacter did not overlap with that of acanthamoeba in rivers. SIGNIFICANCE FOR IMPACT OF THE STUDY: The role of acanthamoeba on the survival of helicobacter might be limited as the both are coincidentally present in the environment.
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Affiliation(s)
- K Kawaguchi
- Department of Medical Laboratory Sciences, Hokkaido University Graduate School of Health Sciences, Kita-ku, Sapporo, Hokkaido, Japan
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Fuji S, Kim SW, Mori S, Kamiya S, Yoshimura K, Yokoyama H, Kurosawa S, Saito B, Takahashi T, Kuwahara S, Heike Y, Tanosaki R, Takaue Y, Fukuda T. Intensive glucose control after allogeneic hematopoietic stem cell transplantation: a retrospective matched-cohort study. Bone Marrow Transplant 2009; 44:105-11. [PMID: 19151794 DOI: 10.1038/bmt.2008.431] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Some studies have shown that intensive glucose control (IGC) improves outcome in the intensive care unit setting. However, it is the benefit of IGC in hematopoietic SCT (HSCT) that is not well defined. Between June 2006 and May 2007, IGC was maintained prospectively after allogeneic HSCT and clinical outcomes were compared with a cohort matched for conditioning regimen, source of stem cells, age and relation to donor. A stratified Cox regression model was used. There were no significant differences in baseline clinical characteristics. The median age was 43.5 years in both groups. The primary diagnosis was a hematologic malignancy. Patients in the IGC group had a lower glucose level (least-square mean, 116.4 vs 146.8 mg per 100 ml, P<0.001) compared to the standard glucose control group. The incidences of documented infections and bacteremia were significantly lower in the IGC group (14 vs 46%, P=0.004, 9 vs 39%, P=0.002, respectively). IGC tended to reduce the incidence of renal dysfunction (19 vs 37%, P=0.36) and the elevation of C-reactive protein (18 vs 38%, P=0.13). This study suggests that IGC has may have a beneficial effect after HSCT. IGC should be evaluated further in a large prospective, randomized study.
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Affiliation(s)
- S Fuji
- Department of Hematology and Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
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26
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Fuji S, Kamiya S, Kim SW, Sugiyama M, Fukuda T, Mori SI, Kurosawa S, Yokoyama H, Saito B, Takahashi T, Heike Y, Tobinai K, Tanosaki R, Kuwahara S, Takaue Y. 262: Prospective Monitoring of Nutritional Status During the Early Phase after Allogeneic Hematopoietic Stem Cell Transplantation (HSCT). Biol Blood Marrow Transplant 2008. [DOI: 10.1016/j.bbmt.2007.12.271] [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: 10/22/2022]
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27
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Fuji S, Kim SW, Mori SI, Fukuda T, Kamiya S, Yamasaki S, Tanosaki R, Tobinai K, Takaue Y. 235: Hyperglycemia during neutropenia was associated with poor outcome in patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT). Biol Blood Marrow Transplant 2007. [DOI: 10.1016/j.bbmt.2006.12.240] [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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28
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Bii CC, Kose J, Taguchi H, Amukoye E, Ouko TT, Muita LC, Mugasia O, Wamae N, Kamiya S. Pneumocystis jirovecii and microbiological findings in children with severe pneumonia in Nairobi, Kenya. Int J Tuberc Lung Dis 2006; 10:1286-91. [PMID: 17131790] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
OBJECTIVE To determine the significance of Pneumocystis jirovecii infection in the Kenyan paediatric population. DESIGN Sixty samples of induced sputum from children aged < or =23 months, half of whom were human immunodeficiency virus (HIV) positive, admitted with severe pneumonia in Nairobi were subjected to immunofluorescent staining for detection of P. jirovecii and microbiological culture. RESULTS P. jirovecii was detected in 8/60 (13%) as a copathogen with other respiratory pathogens. Five of eight samples with >5 oocysts were from HIV-positive children aged < or =6 months, while equivocally scored samples (< or =5 oocysts) were from HIV-negative children aged >6 months. Klebsiella pneumoniae was significantly recovered in 26/ 60 (43%), followed by Escherichia coli 11/60 (18%) and Staphylococcus aureus 8/60 (13%). Streptococcus pneumoniae, Haemophilus influenzae and Pseudomonas aeruginosa were isolated infrequently. Candida albicans was recovered from 27/60 (45%), while the frequency of C. tropicalis, C. glabrata and C. parapsilosis was 7%, 5% and 3% respectively. Multidrug resistance among E. coli and K. pneumoniae were: sulphamethoxazoletrimethoprim 100% vs. 69%, chloramphenicol 55% vs. 73% and ampicillin 100% vs. 89%. CONCLUSION Paediatricians in Kenya should be aware of Pneumocystis pneumonia, irrespective of the patient's HIV status.
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Affiliation(s)
- C C Bii
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi
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Bii CC, Taguchi H, Ouko TT, Muita LW, Wamae N, Kamiya S. Detection of virulence-related genes by multiplex PCR in multidrug-resistant diarrhoeagenic Escherichia coli isolates from Kenya and Japan. Epidemiol Infect 2005; 133:627-33. [PMID: 16050507 PMCID: PMC2870289 DOI: 10.1017/s0950268805003870] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We compared serotypes, drug susceptibility and presence of virulence-related genes in diarrhoeagenic Escherichia coli isolates from children < 5 years from Kenya (n = 82) and Japan (n = 47). Multiplex PCR was used to detect genes coding for enteroaggregative adherence (aggR), heat-stable toxin (st), heat-labile toxin (It), verotoxin (vt), attaching and effacing mechanism (eaeA), enteroaggregative E. coli heat-stable enterotoxin 1 (astA) and enteroinvasive mechanism (invE). Kenyan E. coli O-serotypes were more diverse than those from Japan (29 vs. 12 serotypes) and exhibited high level multidrug resistance to World Health Organization (WHO) recommended antibiotics. Resistance rates to tetracycline, ampicillin and sulphamethoxazole-trimethoprim were 70.7, 65.9 and 68.3% respectively, but resistance to sulphamethoxazole-trimethoprim among the E. coli isolates from Japan was low (21%). Kenyan isolates harboured virulence-related genes in high frequency (82.9%) compared to those from Japan (25.5%) with aggR and astA being the most frequently detected genes. The presence of multiple virulence genes was associated with multidrug resistance and this merits further investigation.
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Affiliation(s)
- C C Bii
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
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30
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Abstract
An ultralubricated system is reported which confines a C60 monolayer between graphite plates. C60 molecules act as molecular bearings, assisted by the nanogears of six-membered carbon rings between C60 molecules and graphite, in which the mean dynamical frictional forces are zero up to a high load of 100 nanonewtons. A stick-slip rolling model with a step rotation of a C60 molecule is proposed. This ultralubricated system, very promising for the realization of nano- and micromachines, is expected to open a new field of molecular bearings.
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Affiliation(s)
- K Miura
- Department of Physics, Aichi University of Education, Hirosawa 1, Igaya -cho, Kariya 448-8542, Japan.
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31
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Aniya Y, Miyagi C, Nakandakari A, Kamiya S, Imaizumi N, Ichiba T. Free radical scavenging action of the medicinal herb Limonium wrightii from the Okinawa islands. Phytomedicine 2002; 9:239-244. [PMID: 12046865 DOI: 10.1078/0944-7113-00112] [Citation(s) in RCA: 31] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Free radical scavenging action of Limonium wrightii O. kunthe was examined in vitro and in vivo by using electron spin resonance spectrometer and chemiluminescence analyzer. A water extract of L. wrightii showed a strong scavenging action for the 1,1-diphenyl-2-picrylhydrazyl, or superoxide anion and moderate for hydroxyl radical. The extract also depressed production of reactive oxygen species from polymorphonuclear leukocytes stimulated by phorbor-12-mysistate acetate and inhibited lipid peroxidation in rat liver microsomes. When the extract was given intraperitoneally to mice prior to carbon tetrachloride (CCl4) treatment, CCl4-induced liver toxicity, as seen by an elevation of serum aspartate aminotransferase and alanine aminotransferase activities, was significantly reduced. Gallic acid was identified as the active component of L. wrightii with a strong free radical scavenging action. Our results demonstrate the free radical scavenging action of L. wrightii and that gallic acid contributes to these actions.
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Affiliation(s)
- Y Aniya
- Laboratory of Physiology and Pharmacology, School of Health Sciences, Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa, Japan.
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32
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Terasaki O, Ohsuna T, Liu Z, Kaneda M, Kamiya S, Carlsson A, Tsubakiyama T, Sakamoto Y, Inagaki S, Che S, Tatsumi T, Camblor M, Ryoo R, Zhao D, Stucky G, Shindo D, Hiraga K. Porous materials: Looking through the electron microscope. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-2991(02)80521-3] [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: 03/09/2023]
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33
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Che S, Kamiya S, Terasaki O, Tatsumi T. The formation of cubic Pm macro 3n mesostructure by an epitaxial phase transformation from hexagonal p6mm mesophase. J Am Chem Soc 2001; 123:12089-90. [PMID: 11724619 DOI: 10.1021/ja0118237] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Che
- Division of Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Yokohama 240-8501, Japan
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34
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Tatsuno I, Horie M, Abe H, Miki T, Makino K, Shinagawa H, Taguchi H, Kamiya S, Hayashi T, Sasakawa C. toxB gene on pO157 of enterohemorrhagic Escherichia coli O157:H7 is required for full epithelial cell adherence phenotype. Infect Immun 2001; 69:6660-9. [PMID: 11598035 PMCID: PMC100040 DOI: 10.1128/iai.69.11.6660-6669.2001] [Citation(s) in RCA: 140] [Impact Index Per Article: 6.1] [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: 11/20/2022] Open
Abstract
Adherence of enterohemorrhagic Escherichia coli (EHEC) to the intestinal epithelium is critical for initiation of a bacterial infection. An in vitro infection study previously indicated that EHEC bacteria initially adhere diffusely and then proliferate to develop MC, a process that is mediated by various secreted proteins, such as EspA, EspB, EspD, Tir, and intimin, as well as other putative adherence factors. In the present study, we investigated the role of a large 93-kb plasmid (pO157) in the adherence of O157:H7 (O157Sakai) and found the toxB gene to be involved in the full adherence phenotype. A pO157-cured strain of O157Sakai (O157Cu) developed microcolonies on Caco-2 cells; however, the number of microcolonies was lower than that of O157Sakai, as were the production and secretion levels of EspA, EspB, and Tir. Introduction of a mini-pO157 plasmid (pIC37) composed of the toxB and ori regions restored full adherence capacity to O157Cu, including production and secretion of the proteins. In contrast, introduction of a pO157 mutant possessing toxB::Km into O157Cu could not restore the full adherence phenotype. Expression of truncated versions of His-tagged ToxB also promoted EspB production and/or secretion by O157Cu. These results suggest that ToxB contributes to the adherence of EHEC to epithelial cells through promotion of the production and/or secretion of type III secreted proteins.
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Affiliation(s)
- I Tatsuno
- Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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35
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Futamura M, Kamiya S, Tsukamoto M, Hirano A, Monden Y, Arakawa H, Nishimura S. Malolactomycin D, a potent inhibitor of transcription controlled by the Ras responsive element, inhibits Ras-mediated transformation activity with suppression of MMP-1 and MMP-9 in NIH3T3 cells. Oncogene 2001; 20:6724-30. [PMID: 11709707 DOI: 10.1038/sj.onc.1204878] [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] [Received: 06/08/2001] [Revised: 07/24/2001] [Accepted: 08/01/2001] [Indexed: 01/01/2023]
Abstract
To search for anti-cancer agents, a screening system for Ras signal inhibitors was developed using a NIH3T3 cell line with an introduced reporter gene which is controlled by the Ras-responsive element (RRE). With this screening system, malolactomycin D was identified as a selective inhibitor of transcription from the RRE. This compound was found to preferentially inhibit the anchorage-independent growth rather than the anchorage-dependent growth of Ras-transformed NIH3T3 cells. The expression of matrix metalloproteinases MMP-1 and MMP-9, which have RRE in their promoters, were reduced by treatment with malolactomycin D at the translational and transcriptional levels. Analysis of the activity of mitogen-activated protein (MAP) kinases, which play important roles in transduction of the Ras signal, showed that malolactomycin D inhibits the activation of p38 MAP kinase and Jun N-terminal-kinase (JNK) but not extracellular signal-regulated kinase 1 or 2 (ERK1 or 2). These findings suggest that by inhibiting the pathway that leads to the activation of p38 MAP kinase and JNK, malolactomycin D suppresses the expression of MMPs. Since MMPs play important roles in metastasis and maintenance of the microenvironment of tumor cells, both of which facilitate tumor growth, the inhibition of MMPs by malolactomycin D is believed to contribute to its ability to inhibit Ras-mediated tumorigenesis.
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Affiliation(s)
- M Futamura
- Banyu Tsukuba Research Institute, Okubo 3, Tsukuba 300-2611, Japan
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36
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Kamiya S, Shirahase H, Nakamura S, Kanda M, Matsui H, Yoshimi A, Kasai M, Takahashi K, Kurahashi K. A novel series of thromboxane A2 synthetase inhibitors with free radical scavenging and anti-peroxidative activities. Chem Pharm Bull (Tokyo) 2001; 49:563-71. [PMID: 11383607 DOI: 10.1248/cpb.49.563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel series of indoline derivatives with imidazole and carboxyl moieties were synthesized and evaluated for their thromboxane A2 (TXA2) synthetase inhibiting, radical scavenging and anti-peroxidative activities. Among the compounds synthesized, 3-[5-substituted-3-[2-(imidazol-1-yl)ethyl]indolin-1-yl]propionic acids showed free radical scavenging activity and inhibitory effects on lipid-peroxidation of rat brain homogenate and on arachidonate-induced TXA2-dependent aggregation of rabbit platelets. The anti-platelet and anti-peroxidative activities were related to the lipophilicity of the 5-substituent. The 5-hexyloxy derivative (13) showed about 35-fold higher inhibitory activity on TXA2 synthesis than that of ozagrel and about 100-fold higher activity on lipid peroxidation than that of alpha-tocopherol. Compound 13 showed in vivo anti-thrombotic effect in mice and ex vivo anti-peroxidative activity in rats.
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Affiliation(s)
- S Kamiya
- Research Laboratories, Kyoto Pharmaceutical Industries, Ltd., Japan
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37
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Yamamoto T, Sashinami H, Takaya A, Tomoyasu T, Matsui H, Kikuchi Y, Hanawa T, Kamiya S, Nakane A. Disruption of the genes for ClpXP protease in Salmonella enterica serovar Typhimurium results in persistent infection in mice, and development of persistence requires endogenous gamma interferon and tumor necrosis factor alpha. Infect Immun 2001; 69:3164-74. [PMID: 11292737 PMCID: PMC98273 DOI: 10.1128/iai.69.5.3164-3174.2001] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The enteric pathogen Salmonella enterica serovar Typhimurium, similar to other facultative intracellular pathogens, has been shown to respond to the hostile conditions inside macrophages of the host organism by producing a set of stress proteins that are also induced by various environmental stresses. The stress-induced ClpXP protease is a member of the ATP-dependent proteases, which are known to be responsible for more than 90% of all proteolysis in Escherichia coli. To investigate the contribution of the ClpXP protease to the virulence of serovar Typhimurium we initially cloned the clpP and clpX operon from the pathogenic strain serovar Typhimurium chi3306 and then created insertional mutations in the clpP and/or clpX gene. The Delta clpP and Delta clpX mutants were used to inoculate BALB/c mice by either the intraperitoneal or the oral route and found to be limited in their ability to colonize organs of the lymphatic system and to cause systemic disease in the host. A variety of experiments were performed to determine the possible reasons for the loss of virulence. An oxygen-dependent killing assay using hydrogen peroxide and paraquat (a superoxide anion generator) and a serum killing assay using murine serum demonstrated that all of the serovar Typhimurium Delta clpP and Delta clpX mutants were as resistant to these killing mechanisms as the wild-type strain. On the other hand, the macrophage survival assay revealed that all these mutants were more sensitive to the intracellular environment than the wild-type strain and were unable to grow or survive within peritoneal macrophages of BALB/c mice. In addition, it was revealed that the serovar Typhimurium ClpXP-depleted mutant was not completely cleared but found to persist at low levels within spleens and livers of mice. Interferon gamma-deficient mice and tumor necrosis factor alpha-deficient mice failed to survive the attenuated serovar Typhimurium infections, suggesting that both endogenous cytokines are essential for regulation of persistent infection with serovar Typhimurium.
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Affiliation(s)
- T Yamamoto
- Division of Microbiology, Faculty of Pharmaceutical Sciences, Chiba University, Chiba 263-8522, Japan.
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38
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Kato R, Kamiya S, Ueki M, Yajima H, Ishii T, Nakamura H, Katayama T, Fukai F. The fibronectin-derived antiadhesive peptides suppress the myofibroblastic conversion of rat hepatic stellate cells. Exp Cell Res 2001; 265:54-63. [PMID: 11281643 DOI: 10.1006/excr.2001.5179] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We previously found that fibronectin (FN) had a functional site (YTIYVIAL sequence in the 14th type III module) suppressing the integrin-mediated cell adhesion to extracellular matrix. FN-derived peptides containing this antiadhesive site were also shown to regulate cellular processes such as proliferation, differentiation, and apoptosis. The present study shows that the FN-derived antiadhesive peptides suppress the myofibroblastic conversion of rat hepatic stellate cells (HSC). Freshly isolated HSC underwent myofibroblastic conversion during culture in the presence of FBS, as evaluated by indices representing the phenotypic activation of HSC, including increased proliferation, consumption of vitamin A-enriched lipid droplets, and expression of alpha-smooth muscle actin. However, appearance of these myofibroblastic characters was suppressed by coculturing HSC with the FN-derived antiadhesive peptides. On the other hand, the activated HSC, which had already acquired the myofibroblastic phenotype through repeated subculture, secreted FN and then stimulated matrix assembly of ED-A (+) cellular FN as well as plasma FN, while the FN-derived antiadhesive peptides inhibited them. Furthermore, the FN-derived antiadhesive peptides suppressed the integrin-mediated adhesion of the primary HSC to plasma FN and ED-A (+) cellular FN substrates. These results suggested that the FN-derived antiadhesive peptides down-regulated the myofibroblastic conversion of HSC in an indirect manner by inhibiting the integrin-mediated adhesive interaction of HSC with ED-A (+) cellular FN.
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Affiliation(s)
- R Kato
- Department of Patho-Physiology, and Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Science University of Tokyo, 12 Ichigaya Funagawara-machi, Shinjuku-ku, Tokyo, 162-0826, Japan
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39
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Ishihara K, Miura T, Ebihara Y, Hirayama T, Kamiya S, Okuda K. Shared antigenicity between Helicobacter pylori and periodontopathic Campylobacter rectus strains. FEMS Microbiol Lett 2001; 197:23-7. [PMID: 11287141 DOI: 10.1111/j.1574-6968.2001.tb10577.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Periodontopathic Campylobacter rectus strains possess 41- and 68-kDa proteinaceous antigens which share antigenicity with antigens of Helicobacter pylori strains. H. pylori strains have a 54-kDa antigen which reacts with C. rectus strains. We found that the salivary IgA levels against H. pylori were correlated with those against C. rectus. These cross-reactive antigens of C. rectus may affect the serological diagnosis of H. pylori infections, especially when saliva is used. It is possible that these cross-reacting antigens may relate to the induction of immunopathological responses against both microorganisms.
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Affiliation(s)
- K Ishihara
- Department of Microbiology, Oral Science Center, Tokyo Dental College, Chiba, Japan.
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40
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Kamiya S. [Genomic structure of Helicobacter pylori and its pathogenecity]. Nihon Saikingaku Zasshi 2001; 55:629-48. [PMID: 11155709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- S Kamiya
- Department of Infectious Diseases, Kyorin University School of Medicine
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41
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Kamiya S. [Analysis of virulence factors of Helicobacter pylori]. Rinsho Byori 2001; 49:116-20. [PMID: 11307301] [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: 02/19/2023]
Abstract
Many virulence factors of Helicobacter pylori have been reported. Analysis of such virulence factors in relation to the occurrence of gastroduodenal diseases is discussed. Several adhesins of H. pylori are involved in its adhesion to gastric epithelial cells, and urease activity is necessary for its colonization in acidic gastric mucosa. Vacuolation cytotoxin(VacA)-positive Type I strains are frequently isolated from the patients with peptic ulcer diseases in western countries, but not in east Asia. CagA has been reported to be transported into epithelial cells through type IV secretion machinery coded by genes in cag pathogenicity island(PAI) and phosphorylated by cellular tyrosine kinase. Heat shock protein is also considered to be a virulence factor to play a role of triggering autoimmune response, stimulating its adhesion and inducing several cytokines.
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Affiliation(s)
- S Kamiya
- Department of Infectious Diseases, Kyorin University School of Medicine, Mitaka 181-8611
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42
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Abstract
BACKGROUND Many investigations of the relationship between ulcerative colitis (UC) and heat-shock protein (Hsp) 60 have been reported. We have already established an animal model exhibiting UC-like lesions caused by administration of Escherichia coli expressing Yersinia enterocolitica Hsp60. In this study, we therefore attempted to induce mouse colitis by purified Y. enterocolitica Hsp60. METHODS Purified Y. enterocolitica Hsp60 was injected intraperitoneally into B10A/SgSn mice at a dose of 3 microg/0.2 ml once a week for 2 months, and morphological changes in the intestine were examined by light and electron microscopical analysis. Autoimmune responses were also examined. RESULTS The mice treated with Y. enterocolitica Hsp60 exhibited immune reaction between large intestine and autologous serum. Light and electron microscopically, degradation of glandular ducts, erosions, ulceration, crypt abscess-like formation, infiltration of inflammatory cells and absence of perivascular reticular fibers in lamina propria mucosae and subepithelial reticular layer were observed. CONCLUSIONS These findings indicate that administration of Y. enterocolitica Hsp60 induces UC-like lesions with autoimmune responses.
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Affiliation(s)
- Y Sukegawa
- Dept. of First Surgery, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
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43
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Machiki Y, Nimura U, Kanda H, Uematsu T, Kitagawa YU, Kamiya S, Watanabe T. Effects of prostaglandin E1 on hepatic blood flow in conscious dogs with chronic biliary obstruction. Eur Surg Res 2000; 30:115-24. [PMID: 9565745 DOI: 10.1159/000008566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To evaluate the effects of prostaglandin E1 (PGE1) on the hepatic circulation in cholestasis, hepatic arterial blood flow (HAP), portal venous blood flow (PVF), cardiac output, and heart rate during PGE1 infusions were investigated before and 2 weeks after biliary obstruction in conscious dogs by a transit-time ultrasonic flowmeter. In the control period, HAF and PVF increased dose dependently with the infusion of PGE1 from 0.05 to 0.5 micrograms/kg/min. During the biliary obstruction period, a lower dose of PGE1 increased HAF and PVF. The plasma concentration level of PGE1 during the infusion of PGE1 was significantly higher at each dose in the cholestatic animals. These results suggest that the metabolism of PGE1 is attenuated by cholestasis. Plasma PGE1 concentrations should be useful in deciding the optimal dose of PGE1.
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Affiliation(s)
- Y Machiki
- First Department of Surgery, Nagoya University School of Medicine, Japan
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44
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Kamiya S. [Helicobacter pylori and gastric pathology]. J NIPPON MED SCH 2000; 67:360-3. [PMID: 11031367 DOI: 10.1272/jnms.67.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- S Kamiya
- Department of Infectious Diseases, Kyorin University School of Medicine
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45
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Pak SC, Na CS, Kim JS, Chae WS, Kamiya S, Wakatsuki D, Morinaka Y, Wilson L. The effect of acupuncture on uterine contraction induced by oxytocin. Am J Chin Med 2000; 28:35-40. [PMID: 10794115 DOI: 10.1142/s0192415x00000064] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Preterm labor (PTL) is one of the main causes of fetal mortality and morbidity in obstetrical medicine. Current methods of treatment are not very effective and often have significant side effects. For this reason new methods of preventing PTL are currently being sought. In Western medicine the newest development is oxytocin antagonists. In Oriental medicine acupuncture and moxibustion are being utilized for the purpose of stopping PTL. The goals of this study were to determine if acupuncture in pregnant rats can suppress oxytocin induced uterine contractions and to compare these results with those inhibited by an oxytocin antagonist. Uterine contractions were induced by continuous infusion of exogenous oxytocin. The first fetus in one uterine horn near the ovarian end was removed and distilled water-filled catheter was inserted into that vacated amniotic sac to measure uterine contractions as intrauterine pressure changes. Two acupoints of Ho-Ku (LI-4) and San-Yin-Chiao (Sp-6) were selected for acupuncture and Kuan-Yüan (Co-4) was used for moxibustion. The oxytocin-induced uterine contractions were significantly suppressed by acupuncture on the LI-4 (p < 0.05), but not by Sp-6. Stimulation of Co-4 by moxibustion had no significant (p > 0.05) tocolytic effect. The administration of oxytocin antagonist eliminated all the uterine contractions induced by oxytocin. The application of acupuncture to re-stimulate the activity that was suppressed by the oxytocin antagonist did not produce any positive results. However, prostaglandins did cause the uterus to contract. In conclusion, acupuncture on LI-4 was found to suppress uterine contractions induced by oxytocin in the pregnant rat. If acupuncture is similarly effective in counteracting the effects of oxytocin in women, then this may an alternative medical treatment for women in preterm labor.
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Affiliation(s)
- S C Pak
- Department of Acupuncture and Anatomy, Dongshin University, Naju, South Korea
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46
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Watanabe K, Takahashi H, Habu Y, Kamiya-Kubushiro N, Kamiya S, Nakamura H, Yajima H, Ishii T, Katayama T, Miyazaki K, Fukai F. Interaction with heparin and matrix metalloproteinase 2 cleavage expose a cryptic anti-adhesive site of fibronectin. Biochemistry 2000; 39:7138-44. [PMID: 10852711 DOI: 10.1021/bi992670r] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [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: 11/28/2022]
Abstract
We recently found that fibronectin (FN) had a functional site [YTIYVIAL sequence in the heparin-binding domain 2 (Hep 2)] that was capable of suppressing the integrin-mediated cell adhesion to extracellular matrix. However, our results also indicated that this anti-adhesive site seemed to be usually buried within the Hep 2 domain structure because of its hydrophobic nature, raising a question as to the physiological significance of the cryptic anti-adhesive activity of FN. The present study demonstrates that the cryptic anti-adhesive activity can be exposed through the physiological processes. A 30-kDa chymotryptic FN fragment derived from Hep 2 domain (Hep 2 fragment), which had no effect on adhesion of MSV-transformed nonproducer 3T3 cell line (KN(7)8) to FN, expressed the anti-adhesive activity after treatment with 6 M urea. Light scattering and circular dichroism measurements showed that the urea treatment induced the conformational change of the Hep 2 fragment from a more compact form to an unfolded one. Incubation of the Hep 2 fragment with heparin also induced similar conformational changes and expression of anti-adhesive activity. Additionally, both the urea and heparin treatments made the Hep 2 fragment and intact FN much more accessible to the polyclonal antibody (alphaIII14A), with a recognition site near the anti-adhesive site of FN. Specific cleavage of either the Hep 2 fragment or intact FN by matrix metalloproteinase 2 (MMP-2) released a 10-kDa fragment with the anti-adhesive activity, which was shown to have the exposed anti-adhesive site on the amino-terminal region. Thus, the cryptic anti-adhesive activity of FN can be expressed upon conformational change and proteolytic cleavage of Hep 2 domain.
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Affiliation(s)
- K Watanabe
- Nippi Research Institute of Biomatrix, Tokyo, Japan
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47
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Kamiya S, Shirahase H, Yoshimi A, Nakamura S, Kanda M, Matsui H, Kasai M, Takahashi K, Kurahashi K. Bioavailable acyl-CoA: cholesterol acyltransferase inhibitor with anti-peroxidative activity: synthesis and biological activity of novel indolinyl amide and urea derivatives. Chem Pharm Bull (Tokyo) 2000; 48:817-27. [PMID: 10866142 DOI: 10.1248/cpb.48.817] [Citation(s) in RCA: 14] [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: 11/22/2022]
Abstract
We synthesized a series of indoline derivatives with an amide or urea moiety and examined their inhibitory effects on acyl-CoA:cholesterol acyltransferase (ACAT) activity, lipid-peroxidation and serum cholesterol levels in experimental animals. Among the derivatives synthesized, a series of N-(1-alkyl-4,6-dimethylindolin-7-yl)-2,2-dimethylpropanamides++ + potently inhibited rabbit intestinal ACAT activity and lipid-peroxidation of rat brain homogenate. The effect on ACAT activity was related to the length of the alkyl chain at the 1-position of indoline. N-(4,6-Dimethyl-1-octylindolindolin-7-yl)-2,2-dimethylpropanami de hydrochloride (55) showed inhibitory effects on intestinal and hepatic ACAT activity slightly weaker than those of YM-750, and an inhibitory effect on low density lipoprotein (LDL)-peroxidation similar to that of probucol. Compound 55 also reduced serum cholesterol at 10 mg/kg/d in hyperlipidemic rats and 20 mg/kg/d in normolipidemic hamsters. The plasma concentration of 55 reached 716 ng/ml in dogs (10 mg/kg, p.o.), which is an effective concentration against hepatic ACAT activity and LDL-peroxidation. In conclusion, compound 55 is a novel bioavailable ACAT inhibitor with anti-peroxidative activity and is thus a promising anti-atherosclerotic and anti-hyperlipidemic drug. Indoline proved to be a useful pharmacophore for molecular design of new anti-peroxidative drugs.
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Affiliation(s)
- S Kamiya
- Research Laboratories, Kyoto Pharmaceutical Industries, Ltd., Japan
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48
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Abstract
The purpose of this study was to examine the relationship between personality traits and autobiographical memory. Ninety-one (91) undergraduates completed an autobiographical memory questionnaire, describing experiences of unpleasant emotional episodes, and then rating their qualities: Vividness, emotionality, influence, and so on. They also completed a number of personality inventories, including the Yatabe-Guilford Personality Inventory and Self-Acceptance Inventory. Results indicated that emotionally stable and high-activity subjects perceived past unpleasant episodes as more positive, although there was no qualitative difference. Compared with emotionally unstable and low-activity subjects, they also had a higher self-acceptance score, and acknowledged and accepted own shortcomings. People with adaptive personality appear to have positive views on many aspects of the self. These findings were interpreted from the self-schema perspective of memory.
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Affiliation(s)
- S Kamiya
- Faculty of Literature, Nanzan University, Nagoya
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49
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Yamaguchi H, Osaki T, Kai M, Taguchi H, Kamiya S. Immune response against a cross-reactive epitope on the heat shock protein 60 homologue of Helicobacter pylori. Infect Immun 2000; 68:3448-54. [PMID: 10816497 PMCID: PMC97622 DOI: 10.1128/iai.68.6.3448-3454.2000] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [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: 12/29/2022] Open
Abstract
We previously established a monoclonal antibody (MAb), designated H9, which reacts with the heat shock protein 60 (HSP60) homologue of Helicobacter pylori as well as with other bacterial and human HSP60s. To determine the importance of a cross-reactive epitope on H. pylori HSP60 in H. pylori immunopathogenesis, we performed (i) mapping of an epitope on H. pylori HSP60 recognized by the H9 MAb, (ii) analysis of immunoglobulin G responses of patients with or without H. pylori infection to its epitope region, and (iii) studies of the protective effect of immunization with its epitope region on H. pylori infection in mice. The epitope recognized by the H9 MAb was mapped to the sequence of amino acids 189 to 203 (VEGMQFDRGYLSPYF) on the H. pylori HSP60 molecule. It was confirmed that the synthesized peptide designated pH9 was recognized by the H9 MAb. Enzyme-linked immunosorbent assay analysis showed that patients with H. pylori infection (n = 349) had significantly lower titers of pH9 antibody than did uninfected patients (n = 200) (P < 0.001), but this was not the case with purified H. pylori HSP60 recombinant Escherichia coli GroEL, or recombinant human HSP60. In C57BL/6 mice immunized with the pH9 peptide with Freund's complete adjuvant (FCA), the number of H. pylori organisms colonizing the stomach was significantly lower than that in mice immunized with pCont plus FCA (P < 0.0001) or FCA only (P < 0.005). The results suggest that the immune response to the cross-reactive epitope (pH9 region) on H. pylori HSP60 is unique and might be associated with protection against H. pylori infection.
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Affiliation(s)
- H Yamaguchi
- Department of Microbiology, Kyorin University School of Medicine, Mitaka, Japan.
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Kobayashi S, Terasaki M, okamoto Y, Sakamoto E, Kamiya S, Shinohara T, Asaba Y. [A case of pancreatic pseudocyst penetrating into the spleen associated with primary hyperparathyroidism]. Nihon Shokakibyo Gakkai Zasshi 2000; 97:612-5. [PMID: 10846419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- S Kobayashi
- Department of Surgery, Shizuoka Saiseikai General Hospital
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