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Tominaga T, Nonaka T, Oyama S, Takamura Y, Hashimoto S, Shiraishi T, Sawai T, Nagayasu T. Efficacy of Neutrophil-to-Lymphocyte Ratio for Cancer-Specific Survival in Elderly Patients with Localized Colon Cancer: A Single Center Propensity Score-Matched Analysis. Clin Exp Gastroenterol 2023; 16:1-9. [PMID: 36636228 PMCID: PMC9830562 DOI: 10.2147/ceg.s385207] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/22/2022] [Indexed: 01/06/2023] Open
Abstract
Purpose The prognostic value of neutrophil-to-lymphocyte ratio (NLR) has been studied for colorectal cancer. Elderly patients in general tend to have comorbidities and decreased organ function that potentially influence the NLR score. The aim of this study was to investigate the relationship between NLR and cancer-specific survival in elderly patients with colon cancer, using a propensity score-matched analysis. Patients and Methods A total of 203 patients aged over 75 years who underwent curative resection for colon cancer and were diagnosed pathologically with stage II/III disease were eligible for entry to the study. Patients were divided into two groups according to NLR score: NLR-High (NLR≥4.5) group (NLR-H, n=60) and NLR-Low (NLR<4.5) group (NLR-L, n=143). After propensity score matching, 57 patients in each group were matched. Results Before matching, Charlson comorbidity index was significantly higher in the NLR-H group (4 vs 2, p<0.001). After matching, all factors were similar between the groups. The median follow-up period was 43 months (range, 1-160 months). Five-year relapse-free-survival (69.8% vs 87.3%, p=0.030) and cancer-specific survival (83.0% vs 96.0%, p=0.042) were significantly lower in the NLR-H group. Conclusion NLR appears to be a cancer-specific prognostic marker in elderly patients with colon cancer.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan,Correspondence: Tetsuro Tominaga, Department of Surgical Oncology, Nagasaki University Graduate School of Biological Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan, Tel +81-95-819-7304, Fax +81-95-819-7306, Email
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Yuma Takamura
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shintaro Hashimoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Toshio Shiraishi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
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Oyama S, Tanaka K, Moriyama M, Nonaka T, Tominaga T, Sawai T, Kinoshita N, Nagayasu T. Laparoscopic resection of an intra-abdominal esophageal duplication cyst in the ileum: a case report. Surg Case Rep 2022; 8:219. [PMID: 36484876 PMCID: PMC9733750 DOI: 10.1186/s40792-022-01576-6] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Esophageal duplication cyst (EDC) is a type of gastrointestinal duplication cyst that involves congenital malformations of the gastrointestinal tract. EDCs are frequently found in the mediastinum and thoracoabdominal region, but rarely occur in the abdominal cavity. However, intra-abdominal EDCs are frequently found in the upper abdomen near the abdominal esophagus. Here, we report, for the first time, a case of intra-abdominal EDC that occurred in the ileum. CASE PRESENTATION A 14-year-old female patient presented to our hospital with complaints of epigastric pain and vomiting. Abdominal computed tomography (CT) revealed a cystic tumor in the pelvis, suspected of ovarian origin. She was admitted to our gynecology department and underwent emergency surgery. The laparoscopic examination revealed that both ovaries were intact and that a primary tumor had developed from the ileal mesentery. Since the patient's condition was not urgent at the time of the gynecological surgery, the procedure was completed by only performing exploratory laparotomy; the patient was admitted to our department after the surgery. Pelvic magnetic resonance imaging performed on the next day revealed a cystic mass measuring 90 × 65 mm with a smooth margin and homogeneous signal intensity, arising posterior to the uterus. The mass was suspected as an intestinal duplication cyst. On another day, after the examinations were completed, we resected the portion of the small intestine containing the tumor by laparoscopy. The patient had a successful postoperative course and was discharged on the 5th postoperative day. Histological examination showed that the cyst was lined by stratified squamous epithelium, contained esophageal glands, and had a two-layer muscularis propria. Therefore, a diagnosis of intra-abdominal EDC was performed. CONCLUSIONS An intra-abdominal EDC cyst is relatively rare; this is the first case reported at the distal ileum.
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Affiliation(s)
- Shosaburo Oyama
- Department of Surgery, Saiseikai Nagasaki Hospital, 2-5-1 Katafuchi, Nagasaki, 850-0003 Japan ,grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Kenji Tanaka
- Department of Surgery, Saiseikai Nagasaki Hospital, 2-5-1 Katafuchi, Nagasaki, 850-0003 Japan
| | - Masaaki Moriyama
- Department of Surgery, Saiseikai Nagasaki Hospital, 2-5-1 Katafuchi, Nagasaki, 850-0003 Japan ,grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Takashi Nonaka
- grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Tetsuro Tominaga
- grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Terumitsu Sawai
- grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Naoe Kinoshita
- Department of Diagnostic Pathology, Saiseikai Nagasaki Hospital, 2-5-1 Katafuchi, Nagasaki, 850-0003 Japan
| | - Takeshi Nagayasu
- grid.174567.60000 0000 8902 2273Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
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3
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Ishii M, Tominaga T, Nonaka T, Oyama S, Moriyama M, Maruyama K, Sawai T, Nagayasu T. Colon inflammatory index as a useful prognostic marker after R0 resection in patients with colorectal cancer liver metastasis. PLoS One 2022; 17:e0273167. [PMID: 36194563 PMCID: PMC9531835 DOI: 10.1371/journal.pone.0273167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/03/2022] [Indexed: 11/06/2022] Open
Abstract
Background Although R0 resection for colorectal cancer liver metastasis (CRLM) is a promising treatment with improved prognosis, the recurrence rate is still high. No prognostic markers have been reported after resection of CRLM. In this study, we investigated the association between inflammation-based score and prognosis after R0 resection in patients with CRLM. Methods We retrospectively investigated 90 patients who underwent R0 resection for CRLM between 2008 and 2018. We calculated colon inflammatory index (CII) (CII0, low risk; CII1, intermediate risk; and CII2, high risk), modified Glasgow prognostic score, prognostic nutritional index, and CRP-to-albumin ratio; and retrospectively assessed the relationship between these scores, the clinicopathological features, and prognosis. Results The median follow-up period was 44 months (range, 2–101 months). Five-year relapse-free survival (RFS) (CII2; 12.5%, CII1; 14.5%, CII0; 42.9%) and 5-year overall survival (OS) (CII2; 32.4%, CII1; 25.4%, CII0; 57.7%) were significantly lower in the high CII groups (CII1–2) compared with the low CII group (CII0) (p = 0.021 and p = 0.006, respectively). CEA level was significantly higher in the high CII group than the low CII group (12.4 vs 7.3, p = 0.004). Multivariate analysis showed CII score as an independent predictor of RFS (hazard ratio 2.128, 95%CI 1.147–3.430, p = 0.015) and OS (hazard ratio 2.639, 95%CI 1.331–5.323, p = 0.005). Conclusion CII shows promise as a prognostic marker after R0 liver resection in patients with CRLM.
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Affiliation(s)
- Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
- Department of Surgery, Isahaya General Hospital, Isahaya, Nagasaki, Japan
| | - Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
- * E-mail:
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Keizaburo Maruyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
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Baba M, Matsumoto K, Shindo H, Matsumoto M, Otsubo R, Tanaka A, Oyama S, Zhu R, Yamamoto I, Nagayasu T. Development and evaluation of an original phantom model of ultrasonography-guided thyroid gland biopsy for the training of surgical residents and students. Surg Today 2022; 53:443-450. [PMID: 36181567 DOI: 10.1007/s00595-022-02582-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022]
Abstract
PURPOSES Fine-needle aspiration cytology (FNAC) is a specific and important test used for the diagnosis of thyroid gland cancer. We developed a thyroid gland phantom using original manufacturing techniques and direct three-dimensional (3D) printing. The aim of this study was to confirm the effectiveness of this phantom by collecting data to evaluate puncture training. METHODS Data from 45 ultrasonography-guided thyroid nodule FNAC procedures performed on our thyroid phantom were evaluated in our department. The first group comprised qualified physicians who specialized in thyroid gland treatment (group A; n = 10). The second and third groups comprised senior and junior residents (group B; n = 8 and group C; n = 12; respectively). The fourth group comprised students (group D; n = 15). We measured the times taken by these groups to complete each task. RESULTS The skills of all participants in groups B, C, and D improved after using this phantom involving the major (parallel)- (0.47 ± 0.07) and short (orthogonal)-axes (0.52 ± 0.07) methods (P < 0.001). The number of erroneous punctures decreased from 53 to 3. CONCLUSIONS Our original phantom improved the puncture skills of students and junior doctors and was suitable as a tailored training model for practicing thyroid gland transfixion.
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Affiliation(s)
- Masayuki Baba
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Keitaro Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan. .,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
| | - Hisakazu Shindo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Megumi Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Ryota Otsubo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Aya Tanaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Rui Zhu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ikuo Yamamoto
- Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Division of Mechanical Science, Nagasaki University Graduate School, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Medical Engineering, Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Nishimuta M, Arai J, Hamasaki K, Hashimoto Y, Nonaka T, Tominaga T, Oyama S, Yasutake T, Sawai T, Nagayasu T. Number of Examined Lymph Nodes as a Risk Factor for Recurrence in pT1N+ or pT2-3N0 Gastric Cancer. Cancer Diagn Progn 2022; 2:558-563. [PMID: 36060028 PMCID: PMC9425580 DOI: 10.21873/cdp.10142] [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] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND/AIM Japanese Gastric Cancer Treatment Guidelines do not recommend adjuvant chemotherapy after radical gastrectomy for pathological stage (p) T1N+ or pT2~3N0 gastric cancer. However, some patients experience disease recurrence. This study aimed to identify the risk factors for recurrence in pT1N+ or pT2-3N0 gastric cancer. PATIENTS AND METHODS The study included 157 patients with diagnosed pT1N+ or pT2-3N0 gastric cancer who underwent radical gastrectomy at our institution between January 2001 and December 2020. Clinicopathological data and surgical data were obtained. Independent prognostic factors were analyzed using a Cox proportional hazards regression model. RESULTS Thirteen patients (8.3%) experienced disease recurrence. Multivariate analysis revealed that the number of examined lymph nodes was an independent prognostic factor for recurrence-free survival (hazard ratio=10.90; 95% confidence interval=1.39-85.86; p=0.023). The group with ≤35 examined lymph nodes had significantly worse recurrence-free survival compared with the group with ≥36 examined lymph nodes (80.7% versus 98.7%; p=0.0005). CONCLUSION The number of examined lymph nodes (≤35) was an independent risk factor for recurrence after radical gastrectomy with pT1N+ or pT2-3N0 gastric cancer.
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Affiliation(s)
- Masato Nishimuta
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Junichi Arai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Keiko Hamasaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Yasumasa Hashimoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Toru Yasutake
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
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Maruyama K, Tominaga T, Nonaka T, Moriyama M, Oyama S, Ishii M, Sawai T, Nagayasu T. Efficacy of risk-stratified indicators for adjuvant chemotherapy with fluorouracil and oxaliplatin after hepatectomy for colorectal cancer liver metastasis. Int J Colorectal Dis 2022; 37:1545-1552. [PMID: 35624174 DOI: 10.1007/s00384-022-04189-5] [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] [Accepted: 05/21/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND The recurrence rate after hepatectomy for colorectal cancer liver metastasis (CRLM) is high, and there is no consensus regarding the effect of adjuvant chemotherapy (AC) using oxaliplatin (doublet AC) in these patients. METHODS The present study included 91 patients who underwent hepatectomy for complete resection at our hospitals between 2008 and 2018. Based on whether or not they had undergone doublet AC, patients were divided into AC (n = 35) and non-AC (n = 56) groups. The recurrent risk was evaluated by the Memorial Sloan Kettering Cancer Center clinical risk score (MSKCC-CRS). RESULTS The number of females and median age were higher in the AC group (51.4% vs 25.0%, p = 0.010 and 67 vs 61 years, p = 0.012, respectively). The median follow-up period was 45 months (range, 6-101 months). Doublet AC was an independent prognostic factor for 5-year relapse-free survival (hazard ratio, 0.225; 95%CI, 0.097-0.522; p < 0.001) and for 5-year overall survival (hazard ratio, 0.165; 95%CI, 0.057-0.476; p < 0.001) in multivariate analysis. In patients with a high risk of recurrence (MSKCC-CRS 3-5), 5-year relapse-free survival and 5-year overall survival was higher in the doublet AC group than in the non-AC group (p < 0.01). In low-risk patients (MSKCC-CRS 0-2), 5-year relapse-free survival and 5-year overall survival were similar between the groups. CONCLUSIONS Doublet AC could have a positive effect on prognosis after curative resection of CRLM, especially in high-risk patients. The selection of patients and AC regimen should take into consideration the risk of recurrence.
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Affiliation(s)
- Keizaburo Maruyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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Tominaga T, Nonaka T, Oyama S, Takamura Y, Hashimoto S, Shiraishi T, Sawai T, Nagayasu T. Utility of Drain Fluid Culture and Gram Stain in Early Intervention for Occult Anastomotic Leakage in Colorectal Cancer. Anticancer Res 2022; 42:3091-3098. [PMID: 35641294 DOI: 10.21873/anticanres.15797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Although occult leakage after colorectal surgery does not usually cause critical illness, it can cause long-term complications that decrease the quality of life of patients. There is currently no established diagnostic, treatment, or follow-up method for occult leakage. We assessed the risk factors of occult leakage and examined the efficacy of drain fluid culture and Gram staining for its early detection and appropriate treatment intervention. PATIENTS AND METHODS Data from 243 consecutive colorectal cancer patients who underwent resection with reconstruction by the double stapling technique between 2016 and 2020 were reviewed. RESULTS Sixteen (6.6%) patients had postoperative occult leakage. Multivariate analysis revealed that preoperative treatment was significantly associated with occult leakage (odds ratio=12.423; 95% confidence interval=4.095 to 17.680; p<0.001). Among the 16 patients, 1 experienced stenosis, and none experienced a fistula or chronic sinus. Drain fluid samples of 34 patients (14.0%) were Gram stainpositive, and those of 76 patients (31.3%) were culturepositive. The positive and negative predictive values of drain fluid culture were 18.4% and 98.7%, respectively, and those of Gram staining were 38.2% and 98.6%, respectively, for occult leakage. Among cases with occult leakage, more than two bacterial species were detected in 71.5% of the cultures. Antibiograms indicated that the three major species tended to be resistant to cephem antibiotics, which are used for prophylaxis, but susceptible to carbapenem antibiotics, which are used for empiric therapy. CONCLUSION Drain fluid culture and Gram staining may enable early detection and appropriate treatment intervention for occult leakage.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Yuma Takamura
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shintaro Hashimoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Toshio Shiraishi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
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Tominaga T, Nonaka T, Oyama S, Shiraishi T, Takeshita H, Hisanaga M, Fukuoka H, Fukuda A, Sumida Y, Hashimoto S, To K, Tanaka K, Sawai T, Nagayasu T. Effect of oxaliplatin in elderly colon cancer patients with pathological T4 and/or N2 disease: a multicenter, propensity score-matched analysis. Int J Colorectal Dis 2022; 37:1181-1188. [PMID: 35478036 DOI: 10.1007/s00384-022-04159-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Accepted: 04/17/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE Although adjuvant chemotherapy (AC) using fluoro-pyrimidine and oxaliplatin (FU + oxaliplatin) is recommended after curative resection for locally advanced colon cancer patients, several randomized controlled trials have shown no additional effect of oxaliplatin in patients aged ≥ 70 years. Here, we examined the effectiveness of FU + oxaliplatin on the long-term outcome of old patients with a high risk of recurrence. METHODS This multicenter, retrospective study included 346 colon cancer patients diagnosed with pathological T4 and/or N2 disease from 2016 to 2020. They were divided into an old group (≥ 70 years, n = 197) and a young group (< 70 years, n = 167). Propensity score matching was used to minimize selection bias, and 126 patients per group were matched. RESULTS Before matching, the rates of poor performance status (p < 0.001) and the presence of comorbidities (76.1% vs. 47.9%, p < 0.001) were higher in the old group. Although all baseline factors were similar between groups, after matching, the AC rate was lower in the old group (45.2% vs. 65.1%, p = 0.002). In the old group, relapse-free (82.2% vs. 55.6% and 69.6%, p < 0.05) and overall survival (83.1% vs. 80.0% and 44.4%, p < 0.05) rates were significantly higher in the AC patients with FU + oxaliplatin than in the AC patients with only FU and the non-AC patients. CONCLUSION The selected old colon cancer patients with a high risk of recurrence gained an additional benefit with respect to prognosis from FU + oxaliplatin as AC.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan
| | - Toshio Shiraishi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan
| | - Hiroaki Takeshita
- Department of Surgery, National Hospital Organization Nagasaki Medical Center, Ohmura, Nagasaki, Japan
| | - Makoto Hisanaga
- Department of Surgery, Isahaya General Hospital, Isahaya, Nagasaki, Japan
| | - Hidetoshi Fukuoka
- Department of Surgery, Isahaya General Hospital, Isahaya, Nagasaki, Japan
| | - Akiko Fukuda
- Department of Surgery, National Hospital Organization Ureshino Medical Center, Ureshino, Saga, Japan
| | - Yorihisa Sumida
- Department of Surgery, National Hospital Organization Ureshino Medical Center, Ureshino, Saga, Japan
| | - Shintaro Hashimoto
- Department of Surgery, Sasebo City General Hospital, Sasebo, Nagasaki, Japan
| | - Kazuo To
- Department of Surgery, Sasebo City General Hospital, Sasebo, Nagasaki, Japan
| | - Kenji Tanaka
- Department of Surgery, Saiseikai Nagasaki Hospital, Nagasaki, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan
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Tominaga T, Nonaka T, Fukuda A, Moriyama M, Oyama S, Ishii M, Takamura K, Tsurumoto T, Sawai T, Nagayasu T. Usefulness of structured-cadaveric training for trans-anal pelvic exenteration. Asian J Endosc Surg 2022; 15:299-305. [PMID: 34617393 DOI: 10.1111/ases.12998] [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: 07/27/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Structured training using cadaveric simulation is useful for trans-anal surgery; however, no studies have examined the effectiveness of cadaveric training for advanced trans-anal surgery including pelvic exenteration (PE). METHODS Twelve colorectal surgeons attended a total of 10 cadaveric simulation training courses between 2016 and 2021 and completed a questionnaire at the end of the program. We divided 14 consecutive patients who underwent trans-anal PE between 2015 and 2021 into two groups: pre-training group and post-training group, and compared the clinico-pathological features between the groups. RESULTS The median length of clinical experience of the surgeons was 12 years. There was high score agreement among the surgeons that the course was useful for recognition of anatomical and layer structure, training for trans-anal total mesorectal excision and trans-anal PE, and reducing complications specific to the trans-anal approach. Compared with the pre-training group, patients in the post-training group had a higher rate of two-team surgery (77.8% vs 0%, P = .021), and shorter time to specimen removal (273 vs 423 min, P = .045). CONCLUSIONS Structured-cadaveric training has potential use as a technical step-up in advanced trans-anal surgery that might contribute to better short-term outcomes in the clinical setting.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Akiko Fukuda
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Keiko Takamura
- Center of Cadaver Surgical Training, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Toshiyuki Tsurumoto
- Center of Cadaver Surgical Training, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Terumitsu Sawai
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
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10
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Tominaga T, Nonaka T, Fukuda A, Moriyama M, Oyama S, Ishii M, Sawai T, Okano S, Nagayasu T. Pathological complete response to pembrolizumab in patients with metastatic ascending colon cancer with microsatellite instability. Clin J Gastroenterol 2021; 15:134-139. [PMID: 34708305 DOI: 10.1007/s12328-021-01543-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 10/20/2021] [Indexed: 12/24/2022]
Abstract
Pembrolizumab is a novel immune-checkpoint inhibitor used for treatment of microsatellite instability-high (MSI-H) colorectal cancer. Several studies have reported clinical complete response (CR) after treatment with pembrolizumab, but none has confirmed pathological CR. Here we provide the first description of pathological CR with R0 resection after immune-checkpoint therapy. A 45-year-old man presented at our hospital with abdominal distention and highly elevated tumor markers. Contrast-enhanced abdominal CT showed a 110 × 75 mm bulky mass with markedly swollen lymph nodes and an isolated peritoneal metastasis in the pelvic space. Biopsy revealed poorly differentiated adenocarcinoma. We diagnosed ascending colon cancer cT4aN2bM1c Stage IVc. A biopsy specimen obtained during systemic chemotherapy (FOLFOXIRI) was confirmed pathologically as MSI-H, after which the treatment was changed to pembrolizumab. The tumor markers rapidly decreased to within normal ranges after three courses of treatment. After twenty courses, CT revealed shrinkage of the main tumor, lymph node metastases, and the peritoneal metastasis, and we performed extended right hemi-colectomy with dissection of the peritoneal metastasis. No residual tumor cells were found histologically. The patient achieved pathological CR and the postoperative course was uneventful. An accurate diagnosis and appropriate follow up are crucial for obtaining sufficient therapeutic effect of pembrolizumab.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Akiko Fukuda
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Terumitsu Sawai
- Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shinji Okano
- Department of Pathology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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11
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Oyama S, Arslanian KJ, Fidow UT, Naseri T, Soti-Ulberg C, Hawley NL. Factorial validation analysis of the Baby and Children's Eating Behavior Questionnaires in Samoa. Eat Behav 2021; 42:101530. [PMID: 34051664 PMCID: PMC8380697 DOI: 10.1016/j.eatbeh.2021.101530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/09/2021] [Revised: 04/19/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
Survey instruments for assessing eating behaviors in infancy and early childhood have yet to be validated among Pacific Islanders, among whom the prevalence of pediatric obesity is steadily increasing. This study aimed to evaluate Baby Eating Behavior Questionnaire (BEBQ) and Children's Eating Behavior Questionnaire (CEBQ) factor structures against data collected from mother-infant dyads in Samoa. The BEBQ was administered across two time points: approximately 2 months (mean = 2.37 [SD = 0.34]; N = 105) and 4 months postpartum (mean = 4.22 [SD = 0.44]; N = 117). The CEBQ was administered at approximately 21 months postpartum (mean = 21.45 [SD = 1.72]; N = 113). Both the original four-factor BEBQ and seven-factor CEBQ models failed to replicate in confirmatory factor analyses. BEBQ data from 2 and 4 months demonstrated acceptable fit to a nine-item, two factor model, generated by elimination of factors with low internal reliability. A series of exploratory factor analyses on CEBQ data from 21 months postpartum ultimately revealed 16-item, three-factor structure. There was little correlation between BEBQ and CEBQ scores, suggesting either that infant feeding behaviors before and after weaning are not strongly associated, or that the BEBQ and CEBQ function better in cross-sectional, rather than longitudinal analyses. Newly derived CEBQ factors raise concerns regarding whether original CEBQ items and factors were sufficiently theoretically distinct. Study results suggest that demographic and cultural differences may impact both BEBQ and CEBQ factor structure. Further qualitative research is necessary to address these issues.
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Affiliation(s)
- S Oyama
- Department of Anthropology, Yale University, New Haven, CT,Yale School of Medicine, Yale University, New Haven, CT
| | - KJ Arslanian
- Department of Anthropology, Yale University, New Haven, CT,Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT
| | - UT Fidow
- Obstetrics & Gynecology, Tupua Tamasese Meaole Hospital, Samoa National Health Services, Apia, Samoa
| | | | | | - NL Hawley
- Department of Anthropology, Yale University, New Haven, CT,Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT
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12
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Tominaga T, Nonaka T, Fukuda A, Moriyama M, Oyama S, Ishii M, Nishimuta M, Fujise Y, Sawai T, Nagayasu T. Complete closure of a colo-duodenal fistula in a patient with advanced ascending colon cancer after pembrolizumab combined with radiation therapy: a case report. Surg Case Rep 2021; 7:168. [PMID: 34269952 PMCID: PMC8285456 DOI: 10.1186/s40792-021-01248-x] [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: 06/10/2021] [Accepted: 07/06/2021] [Indexed: 11/25/2022] Open
Abstract
Background A colo-duodenal fistula is a very rare complication of colon cancer that presents with not only severe clinical symptoms, but a poor prognosis due to locally advanced cancer. A novel immune checkpoint inhibitor for colon cancer patients provides a high objective response rate. Recently, radiation therapy combined with immune checkpoint inhibitor therapy has been reported to have a synergistic antitumor effect. A case of complete closure of a colo-duodenal fistula in a patient with locally advanced colon cancer after combined pembrolizumab and radiation therapy is reported. Case presentation A 66-year-old man presented with abdominal distention. Abdominal contrast-enhanced computed tomography (CT) showed a 80-mm bulky mass in the right upper quadrant. The tumor created a fistula to the second portion of the duodenum. Upper gastrointestinal endoscopy showed a colo-duodenal fistula. Gastro-jejunal bypass and ileostomy were performed to prevent bowel obstruction, followed by systemic chemotherapy. MSI-high was diagnosed on examination of the biopsy specimen. Treatment was then changed to immunotherapy using pembrolizumab; after six courses, the tumor markers were decreased to within normal ranges, but the main tumor increased. Radiation therapy was then given for local control of the main tumor, after which CT showed that all of the tumor, including the main tumor, lymph node metastases, and the colo-duodenal fistula, had gradually shrunk. Follow-up upper gastrointestinal endoscopy showed that the colo-duodenal fistula had closed completely. PET–CT showed no abnormal uptake in all tumors, and clinical complete response was diagnosed. Now, 21 months after diagnosis, the tumor is well controlled without evidence of regrowth. Conclusions Pembrolizumab combined with radiation therapy has a potentially dramatic therapeutic effect for advanced colon cancer.
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Affiliation(s)
- Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Akiko Fukuda
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masato Nishimuta
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Yuta Fujise
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Terumitsu Sawai
- Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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13
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Ishimaru K, Tominaga T, Nonaka T, Fukuda A, Moriyama M, Oyama S, Ishii M, Sawai T, Nagayasu T. Colorectal cancer in Crohn's disease: a series of 6 cases. Surg Case Rep 2021; 7:152. [PMID: 34181132 PMCID: PMC8239094 DOI: 10.1186/s40792-021-01237-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/14/2021] [Indexed: 12/12/2022] Open
Abstract
Background Colorectal cancer (CRC) is the most malignant complication in patients with Crohn’s disease (CD). We report 6 cases of CD-related CRC treated surgically at our hospital. Case presentation From 2010 to 2016, six CD patients were diagnosed with CRC. All patients were diagnosed with CD at < 25 years old, and the interval from onset of CD to diagnosis of CRC was > 10 years (range, 15–42 years) in all patients. The histological type of cancer was mucinous carcinoma in two cases, well-differentiated tubular adenocarcinoma in two cases, and moderately differentiated tubular adenocarcinoma in two cases. CRC was detected by screening colonoscopy in three cases (50%), and from clinical symptoms in the remaining three cases (50%). Two cases underwent colonoscopy within 2 months after symptom onset, detecting CRC in the relatively early stage. However, one case was diagnosed with advanced-stage CRC by endoscopy 1 year after symptom onset, and experienced poor prognosis. Conclusions Regular surveillance colonoscopy is needed to detect early-stage CRC in CD patients. Clear surveillance methods need to be established based on evidence.
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Affiliation(s)
- Kazuhide Ishimaru
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tetsuro Tominaga
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Akiko Fukuda
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaaki Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Mitsutoshi Ishii
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Terumitu Sawai
- Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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14
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Tominaga T, Nonaka T, Fukuda A, Moriyama M, Oyama S, Ishii M, Sawai T, Ueki N, Nagayasu T. Epidermoid cyst of the cecum resected by single-incision laparoscopic colectomy: a case report. Surg Case Rep 2021; 7:57. [PMID: 33630182 PMCID: PMC7907325 DOI: 10.1186/s40792-021-01138-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/11/2021] [Indexed: 12/11/2022] Open
Abstract
Background Epidermoid cyst arising from the cecum is extremely rare. Single-incision laparoscopic surgery is the latest innovation in minimally invasive surgery, and shortens incisions, improves cosmesis, and reduces postoperative pain. We report here the first description of a patient with epidermoid cyst of the cecum treated by ileocecal resection by single-incision laparoscopic surgery. Case presentation A 20-year-old woman presented to our hospital with abdominal pain in the right lower quadrant. Abdominal contrast-enhanced computed tomography showed a 56 × 35-mm cystic mass in the ileocecal area. Magnetic resonance imaging revealed a 56 × 43-mm, T1-hypointense, T2-hyperintense mass attached to the cecum. Gastrointestinal tumor or duplication cyst was suspected, and ileocecal resection was performed using single-incision laparoscopic surgery. Intraoperative examination showed the tumor as a round, whitish mass arising from the cecum. Operation time was 162 min, and intraoperative blood loss was 10 ml. Macroscopic examination showed a 56 × 45-mm elastic-hard, whitish, round mass arising from the cecal wall. Microscopic examination revealed the cyst wall lined by keratinized stratified squamous epithelium. No malignant findings were identified. The final diagnosis was epidermoid cyst of the cecum. The postoperative course was uneventful and she was discharged on postoperative day 5. Conclusions A rare case of cecal epidermoid cyst is reported. Single-incision laparoscopic colectomy using an organ retractor represents a promising option for treating cecal epidermoid cyst.
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Affiliation(s)
- Tetsuro Tominaga
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Takashi Nonaka
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Akiko Fukuda
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaaki Moriyama
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shosaburo Oyama
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Mitsuhisa Ishii
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Terumitsu Sawai
- Departments of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Nozomi Ueki
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Takeshi Nagayasu
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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15
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Niinomi I, Hosohata K, Oyama S, Inada A, Wakabayashi T, Iwanaga K. Evaluation of adverse events associated with filgrastim originator and biosimilar using a spontaneous reporting system database. Pharmazie 2020; 75:151-153. [PMID: 32295692 DOI: 10.1691/ph.2020.9189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biosimilar products of filgrastim have become available for improved sustainability of cancer care; however, the real-world safety profile remains unknown. The purpose of this study was to clarify the adverse events associated with filgrastim originator and its biosimilar using the Japanese Adverse Drug Event Report (JADER) database. Adverse event reports submitted to the Pharmaceuticals and Medical Devices Agency between 2014-2018 were extracted. We calculated the reporting odds ratio and 95% confidence interval for each adverse event. We obtained 584 reports of adverse events associated with filgrastim originator and 102 reports with its biosimilar. Signals were detected for bone marrow failure and febrile neutropenia with both filgrastim originator and its biosimilar; whereas those for drug resistance and hypoxia only involved filgrastim originator, and those for interstitial lung disease only involved its biosimilar. The safety profiles of filgrastim originator and its biosimilar were partly different. Further studies are needed to confirm these findings.
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Affiliation(s)
- I Niinomi
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - K Hosohata
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan;,
| | - S Oyama
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - A Inada
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - T Wakabayashi
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - K Iwanaga
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
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16
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Taniguchi D, Matsumoto K, Machino R, Takeoka Y, Elgalad A, Taura Y, Oyama S, Tetsuo T, Moriyama M, Takagi K, Kunizaki M, Tsuchiya T, Miyazaki T, Hatachi G, Matsuo N, Nakayama K, Nagayasu T. Human lung microvascular endothelial cells as potential alternatives to human umbilical vein endothelial cells in bio-3D-printed trachea-like structures. Tissue Cell 2019; 63:101321. [PMID: 32223949 DOI: 10.1016/j.tice.2019.101321] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 08/27/2019] [Revised: 11/29/2019] [Accepted: 12/02/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND We have been trying to produce scaffold-free structures for airway regeneration using a bio-3D-printer with spheroids, to avoid scaffold-associated risks such as infection. Previous studies have shown that human umbilical vein endothelial cells (HUVECs) play an important role in such structures, but HUVECs cannot be isolated from adult humans. The aim of this study was to identify alternatives to HUVECs for use in scaffold-free structures. METHODS Three types of structure were compared, made of chondrocytes and mesenchymal stem cells with HUVECs, human lung microvascular endothelial cells (HMVEC-Ls), and induced pluripotent stem cell (iPSC)-derived endothelial cells. RESULTS No significant difference in tensile strength was observed between the three groups. Histologically, some small capillary-like tube formations comprising CD31-positive cells were observed in all groups. The number and diameters of such formations were significantly lower in the iPSC-derived endothelial cell group than in other groups. Glycosaminoglycan content was significantly lower in the iPSC-derived endothelial cell group than in the HUVEC group, while no significant difference was observed between the HUVEC and HMVEC-L groups. CONCLUSIONS HMVEC-Ls can replace HUVECs as a cell source for scaffold-free trachea-like structures. However, some limitations were associated with iPSC-derived endothelial cells.
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Affiliation(s)
- D Taniguchi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - R Machino
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Y Takeoka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - A Elgalad
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Y Taura
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - S Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Tetsuo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - M Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Takagi
- Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - M Kunizaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Tsuchiya
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Miyazaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - G Hatachi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - N Matsuo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, 1 Honjocho, Saga, 840-8502, Japan
| | - T Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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17
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Takeoka Y, Matsumoto K, Taniguchi D, Tsuchiya T, Machino R, Moriyama M, Oyama S, Tetsuo T, Taura Y, Takagi K, Yoshida T, Elgalad A, Matsuo N, Kunizaki M, Tobinaga S, Nonaka T, Hidaka S, Yamasaki N, Nakayama K, Nagayasu T. Correction: Regeneration of esophagus using a scaffold-free biomimetic structure created with bio-three-dimensional printing. PLoS One 2019; 14:e0216174. [PMID: 31013326 PMCID: PMC6478333 DOI: 10.1371/journal.pone.0216174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0211339.].
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18
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Machino R, Matsumoto K, Taniguchi D, Tsuchiya T, Takeoka Y, Taura Y, Moriyama M, Tetsuo T, Oyama S, Takagi K, Miyazaki T, Hatachi G, Doi R, Shimoyama K, Matsuo N, Yamasaki N, Nakayama K, Nagayasu T. Replacement of Rat Tracheas by Layered, Trachea-Like, Scaffold-Free Structures of Human Cells Using a Bio-3D Printing System. Adv Healthc Mater 2019; 8:e1800983. [PMID: 30632706 DOI: 10.1002/adhm.201800983] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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: 08/12/2018] [Revised: 10/17/2018] [Indexed: 01/23/2023]
Abstract
Current scaffold-based tissue engineering approaches are subject to several limitations, such as design inflexibility, poor cytocompatibility, toxicity, and post-transplant degradation. Thus, scaffold-free tissue-engineered structures can be a promising solution to overcome the issues associated with classical scaffold-based materials in clinical transplantation. The present study seeks to optimize the culture conditions and cell combinations used to generate scaffold-free structures using a Bio-3D printing system. Human cartilage cells, human fibroblasts, human umbilical vein endothelial cells, and human mesenchymal stem cells from bone marrow are aggregated into spheroids and placed into a Bio-3D printing system with dedicated needles positioned according to 3D configuration data, to develop scaffold-free trachea-like tubes. Culturing the Bio-3D-printed structures with proper flow of specific medium in a bioreactor facilitates the rearrangement and self-organization of cells, improving physical strength and tissue function. The Bio-3D-printed tissue forms small-diameter trachea-like tubes that are implanted into rats with the support of catheters. It is confirmed that the tubes are viable in vivo and that the tracheal epithelium and capillaries proliferate. This tissue-engineered, scaffold-free, tubular structure can represent a significant step toward clinical application of bioengineered organs.
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Affiliation(s)
- Ryusuke Machino
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Keitaro Matsumoto
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Daisuke Taniguchi
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Tomoshi Tsuchiya
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Yosuke Takeoka
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Yasuaki Taura
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Masaaki Moriyama
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Tomoyuki Tetsuo
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Shosaburo Oyama
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Katsunori Takagi
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Takuro Miyazaki
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Go Hatachi
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Ryoichiro Doi
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Koichiro Shimoyama
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Naoto Matsuo
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Naoya Yamasaki
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
| | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of MedicineSaga University Saga 840‐8502 Japan
| | - Takeshi Nagayasu
- Department of Surgical OncologyNagasaki University Graduate School of Biomedical Sciences Nagasaki 852‐8501 Japan
- Medical‐Engineering Hybrid Professional Development CenterNagasaki University Graduate School of Biomedical Sciences Nagasaki 8528501 Japan
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19
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Wassinger C, Myers J, Oyama S, Sell T, Lephart S. Kayak stroke technique and musculoskeletal traits in shoulder injured whitewater kayakers. J Sci Med Sport 2010. [DOI: 10.1016/j.jsams.2009.10.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Nielsen U, Huhalov A, Harms B, Paragas V, Adams S, Gu J, Nguyen S, Luus L, Oyama S, Razlog M, Overland R, Wallace M, Kohli N, Feldhaus M, Schoeberl B, McDonagh C. MM-111: a novel bispecific antibody targeting ErbB3 with potent anti-tumor activity in ErbB2 over-expressing malignancies. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-4166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #4166
ErbB3 has been identified as a preferred dimerization partner of ErbB2, critical for driving the proliferation of ErbB2 over-expressing breast tumors. We have designed a bispecific antibody, MM-111, which inhibits ligand-induced phosphorylation of ErbB3 with sub-nanomolar potency by exploiting the abundant expression of its dimerization partner, ErbB2, for specific targeting to cancer cells that express both receptors. We employed computational physicochemical modeling to guide the kinetic optimization of the monovalent binding affinities to the ErbB2 and ErbB3 receptors to increase the potency and specificity of MM-111 for tumor cells. We have demonstrated that MM-111 inhibits activation of the phosphatidylinositol 3-kinase pathway in vitro and in vivo, resulting in attenuation of tumor proliferation. Inhibition of growth by MM-111 has been observed in several murine xenograft models including BT474 and MDA-MB-361 breast tumors. While the antitumor activity of MM-111 is positively correlated with ErbB2 expression levels, MM-111's potent inhibition of ErbB3 phosphorylation and signaling downstream from this receptor differs markedly from currently available therapies targeting ErbB2 over-expressing breast tumors and thus provides a novel approach to treatment for these malignancies. In conclusion, our data demonstrate that the combination of computational biology with antibody engineering has resulted in the development of a promising, novel therapeutic, MM-111, that has potent antitumor activity in malignancies driven by the ErbB2/3 oncogenic unit.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 4166.
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Affiliation(s)
- U Nielsen
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - A Huhalov
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - B Harms
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - V Paragas
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - S Adams
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - J Gu
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - S Nguyen
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - L Luus
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - S Oyama
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - M Razlog
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - R Overland
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - M Wallace
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - N Kohli
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | - M Feldhaus
- 1 Merrimack Pharmaceuticals, Cambridge, MA
| | | | - C McDonagh
- 1 Merrimack Pharmaceuticals, Cambridge, MA
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Fukuda T, Seto Y, Yamada K, Hiki N, Fukunaga T, Oyama S, Yamaguchi T. Can immune-enhancing nutrients reduce postoperative complications in patients undergoing esophageal surgery? Dis Esophagus 2008; 21:708-11. [PMID: 18847452 DOI: 10.1111/j.1442-2050.2008.00861.x] [Citation(s) in RCA: 28] [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
Postoperative infection of esophageal neoplasm surgery is the major cause of prolonged postoperative hospitalization, as well as morbidity. The clinical benefits of administering immune-enhancing nutrients (IEN) to critically ill patients and those undergoing elective surgery were clarified. However, the benefits of preoperative administration of IEN for patients with esophageal cancer remain unclear. The present study was designed to clarify the clinical efficacy of administration of IEN prior to esophageal surgery. A total of 123 patients undergoing esophagectomy in single institute were retrospectively investigated. All patients received postoperative enteral nutrition by use of ordinal nutrients. Preoperative IEN were also given to 84 patients (IEN group), while the other 39 received an ordinary diet (control). Postoperative courses and laboratory data were compared between the two groups. The incidences of infectious complications in the IEN and control groups were 18% and 38%, respectively (P < 0.05). Pneumonia developed in 5 (6%) IEN and 7 (18%) control patients (P < 0.05). Postoperative hospitalization was shorter in the IEN group (P < 0.01). Prealbumin levels, retinal binding protein levels and the lymphocyte count were significantly higher in the IEN group on postoperative day 3. These results suggest that preoperative administration of IEN in patients undergoing esophagectomy reduces infectious complications, mainly pneumonia, and shortens postoperative hospitalization.
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Affiliation(s)
- T Fukuda
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Tokyo, Japan.
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22
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Koeda S, Oyama S, Kawamura H. P.261 Orthognathic surgery in a patient with Rieger's syndrome. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)72049-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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23
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Seto Y, Fukuda T, Yamada K, Matsubara T, Hiki N, Fukunaga T, Oyama S, Yamaguchi T, Nakajima T, Kato Y. Celiac lymph nodes: distant or regional for thoracic esophageal carcinoma? Dis Esophagus 2008; 21:704-7. [PMID: 18522635 DOI: 10.1111/j.1442-2050.2008.00842.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Involvement of celiac nodes is defined as distant metastasis in the TNM classification for thoracic esophageal carcinoma. Some textbooks, however, describe dissection of these nodes as a standard technique. The present study was, therefore, undertaken to clarify which celiac nodes are regional for thoracic esophageal carcinoma and whether or not celiac node dissection would provide a survival benefit. Eight hundred and five patients who underwent R0 resection (no residual tumor) with systematic lymphadenectomy including the celiac axis area for thoracic esophageal carcinoma were retrospectively investigated. The frequency of metastasis and the therapeutic value of dissecting celiac nodes were compared to those associated with the left gastric artery area. The frequencies of left gastric and celiac nodal involvement were 15.4% and 9.6%, respectively, for thoracic esophageal carcinoma. As for tumor location, the incidences of metastasis around left gastric artery and celiac axis from the upper, middle and lower portion were 6.7% and 1.0%; 12.3% and 7.7%; and 25.7% and 17.4%, respectively. The 5-year survivals of patients with celiac but not left gastric metastasis were 36.3% and 41.8% for the middle and lower portions, respectively, while the corresponding values with left gastric involvement but no celiac metastasis were 24.1% and 27.9%. These differences were not significant. The frequency of celiac node involvement was not low. And, their dissection has equivalent therapeutic value to that of left gastric nodes. Revision of the TNM classification to account for celiac node involvement in thoracic esophageal carcinoma, especially of the middle and lower portions, is needed.
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Affiliation(s)
- Y Seto
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Tokyo, Japan.
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24
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Inouye K, Oneda H, Muta Y, Oyama S, Shiihara M. ID: 004 Inhibitory Effects of Green Tea Catechins and Lignans on the Activity of Human Matrix Metalloproteinase 7 (MMP-7) and Insights into Their Structure-Activity Relationship. J Thromb Haemost 2006. [DOI: 10.1111/j.1538-7836.2006.00004.x] [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: 12/01/2022]
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25
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Ota A, Kusano M, Ishii H, Hoshino M, Nakamura A, Koike Y, Enosawa T, Oyama S. A new reconstructive procedure after segmental pancreatectomy: an experimental study of pancreatic end-to-end (duct-to-duct) anastomosis. J Hepatobiliary Pancreat Surg 2002; 8:342-8. [PMID: 11521179 DOI: 10.1007/s005340170006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2000] [Accepted: 02/15/2001] [Indexed: 11/24/2022]
Abstract
We produced experimental models of pancreatic end-to-end anastomosis, including ductal end-to-end anastomosis (with or without stent) and pancreaticojejunostomy, using mongrel dogs, with a view to evaluating reconstructive procedures after segmental pancreatectomy. We examined macroscopic findings, pancreatograms, and microangiographic and histopathological findings to determine whether pancreatic end-to-end anastomosis was as practicable as pancreaticojejunostomy. Macroscopic findings showed no suture failure in any animal in the end-to-end anastomosis group. Pancreatography revealed obstruction of the stent tube in the stent subgroup, but good patency in the no-stent subgroup. On the imaging of the microvasculature in the end-to-end anastomosis group, proliferation of neovascular vessels and formation of communicating vessels were detected. Histopathologically, no suture failure was detected, and the viability of the pancreatic end-to-end anastomosis was confirmed. From this experiment, we concluded it that it was possible to employ pancreatic end-to-end anastomosis after segmental pancreatectomy in the clinical situation.
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Affiliation(s)
- A Ota
- Department of Surgery, Division of General and Gastroenterological Surgery, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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26
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Ota A, Kusano M, Ishii H, Hoshino M, Nakamura A, Koike Y, Enosawa T, Oyama S. A new reconstructive procedure after segmental pancreatectomy: an experimental study of pancreatic end-to-end (duct-to-duct) anastomosis. J Hepatobiliary Pancreat Surg 2001. [PMID: 11521179 DOI: 10.1007/s0053410080342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
We produced experimental models of pancreatic end-to-end anastomosis, including ductal end-to-end anastomosis (with or without stent) and pancreaticojejunostomy, using mongrel dogs, with a view to evaluating reconstructive procedures after segmental pancreatectomy. We examined macroscopic findings, pancreatograms, and microangiographic and histopathological findings to determine whether pancreatic end-to-end anastomosis was as practicable as pancreaticojejunostomy. Macroscopic findings showed no suture failure in any animal in the end-to-end anastomosis group. Pancreatography revealed obstruction of the stent tube in the stent subgroup, but good patency in the no-stent subgroup. On the imaging of the microvasculature in the end-to-end anastomosis group, proliferation of neovascular vessels and formation of communicating vessels were detected. Histopathologically, no suture failure was detected, and the viability of the pancreatic end-to-end anastomosis was confirmed. From this experiment, we concluded it that it was possible to employ pancreatic end-to-end anastomosis after segmental pancreatectomy in the clinical situation.
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Affiliation(s)
- A Ota
- Department of Surgery, Division of General and Gastroenterological Surgery, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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27
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Abstract
/ The Bemba people of northern Zambia practice citemene shifting cultivation. We utilized Landsat satellite images from 1984 and 1992 to map the distribution of citemene fields in those two years and to assess changes in the spatial sustainability of citemene cultivation in a miombo woodland study area. The citemene fields were concentrated within about 5-6 km of roads. Between 1984 and 1992, there was a decrease in the number of fields, and an increase in the average distance from the road. These changes may have been due to the introduction of semipermanent maize farming in the intervening years. The estimated cycle times for woodland utilization may have been long enough to maintain sustainability under traditional citemene cultivation practices. However, cycle times may be too short to maintain sustainability within the woodlands along roads.KEY WORDS: Shifting agriculture; GIS; Sustainability; Citemene; Miombo; Zambiahttp://link.springer-ny.com/link/service/journals/00267/bibs/24n2p273.html
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Affiliation(s)
- DS Sprague
- Center for African Area Studies, Kyoto University, Kyoto 606-8304, Japan
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28
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Oyama S, Masuko N, Tsuchiya S, Tajima M, Niiya H, Kashima H, Nakachi S, Honda T, Wakabayashi T, Yamanami S, Wakabayashi I, Ando T, Kamiya S, Shimojyo H. [Analysis of air pollution and prevalence rate of allergic diseases among elementary school children in Kawaguchi and Hatogaya city]. Arerugi 1998; 47:1190-7. [PMID: 9893336] [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: 02/09/2023]
Abstract
Kawaguchi and Hatogaya City are located on the northern edge of Tokyo. We analysed between air pollution and prevalence rate of allergic diseases among elementary school children in this area. A prevalence rate of allergic diseases in 1996 May and June was as follows; bronchial asthma 13.5%, atopic dermatitis 24.5%, allergic rhinitis and/or conjunctivitis 22.8%, urticaria 12.4%, food allergy 7.8% and drug allergy 2.2%, respectively. Air pollution of this area was analysed to check the levels of nitrogen dioxide (NO2), sulfur dioxide (SO2) and suspended particulate matters (SPM). NO2 pollution was relatively high in urban area, and SPM pollution was especially high around the highways. SO2 pollution was lower than the environmental standard. No relationship was found between the prevalence rate of bronchial asthma, atopic dermatitis, allergic rhinitis and/or conjunctivitis and air pollution, but it was found that these diseases are slightly related to population density (p < 0.1, p < 0.01, p < 0.1, respectively).
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Affiliation(s)
- S Oyama
- Kawaguchi Medical Association
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29
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Yagi M, Kato S, Kobayashi Y, Kubo K, Oyama S, Shimizu T, Nishitoba T, Isoe T, Nakamura K, Ohashi H, Kobayashi N, Iinuma N, Osawa T, Onose R, Osada H. Selective inhibition of platelet-derived growth factor (PDGF) receptor autophosphorylation and PDGF-mediated cellular events by a quinoline derivative. Exp Cell Res 1997; 234:285-92. [PMID: 9260896 DOI: 10.1006/excr.1997.3616] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This report describes the biological effects of our original compound, Ki6783 ((3,4-dimethoxy)-4-phenoxy-6,7-dimethoxyquinoline), a potent and selective inhibitor of platelet-derived growth factor (PDGF) receptor autophosphorylation. This compound strongly inhibited autophosphorylation of the PDGF beta-receptor in cultured rat glomerular mesangial cells (MC) bearing this receptor (IC50 0.1 microM), although it did not inhibit autophosphorylation of other growth factor receptors even at 100 microM. In a cell-free kinase experiment, it showed selective inhibition of PDGF beta-receptor tyrosine kinase. A kinetic study of the compound to this tyrosine kinase revealed a competitive mode of action to ATP. [3H]Thymidine incorporation and cell proliferation of MC were inhibited by Ki6783 in a dose-dependent manner after Ki6783 and PDGF-BB were added to the culture medium. Furthermore, this compound normalized the fibrotic cell shape of v-sis-transformed NIH3T3 cells, which grow in an autocrine manner via the PDGF receptor. These effects could be explained by the inhibition of intracellular signal transduction triggered by PDGF receptor autophosphorylation, in which activation of mitogen-activated protein kinase occurs. These results suggest that Ki6783 is one of the more potent and selective inhibitors of PDGF receptor autophosphorylation and that it may be useful in ameliorating cell abnormalities due to excess action of PDGF and its receptor systems in several diseases.
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Affiliation(s)
- M Yagi
- Pharmaceutical Research Laboratory, Kirin Brewery Company, Ltd., Takasaki-shi, Japan.
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30
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Shimazaki S, Kuremoto K, Oyama S. [Efficacy of rectal diazepam suppository in the prophylaxis of febrile seizures: comparison with rectal chloral hydrate suppository]. No To Hattatsu 1997; 29:278-84. [PMID: 9248286] [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: 02/04/2023]
Abstract
We evaluated the efficacy of diazepam and chloral hydrate given rectally for the prophylaxis of recurrence of febrile seizure. The dose were 0.4 mg/kg for diazepam and 250 mg (for children younger than 3 years old) or 500 mg (for over 3 years old) for chloral hydrate. Another dose was given after an interval of 8 hours if body temperature continued to exceed 38.0 degrees C. Among the 452 patients with febrile seizures who visited our hospital from Jan. 1993 to Jun. 1995, 113 were studied who had at least one febrile episode in the follow-up period that extended over 6 months. These patients were divided into two groups: Group D (72 patients given diazepam) and Group C (41 patients given chloral hydrate). In group D and C, the numbers of febrile episodes were 238 and 167, and those of recurrent seizures 8 (3.8%) and 29 (20.4%), respectively. The recurrences rate was significantly higher in the latter group (p < 0.005). There was no statistical difference as to the mean dosage of diazepam or chloral hydrate between the patients with and without recurrence. The numbers of patients with seizure recurrence were 8 (11.1%) in group D and 12 (29.3%) in group C, being significantly larger in the latter (p < 0.005). Diazepam produced more adverse effects than chloral hydrate did. Thus diazepam suppositories for the prevention of recurrence of febrile seizures were more effective than chloral hydrate suppositories.
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Affiliation(s)
- S Shimazaki
- Department of Pediatrics, Saiseikai Kawaguchi General Hospital Saitama
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31
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Yamamoto Y, Aiba H, Baba T, Hayashi K, Inada T, Isono K, Itoh T, Kimura S, Kitagawa M, Makino K, Miki T, Mitsuhashi N, Mizobuchi K, Mori H, Nakade S, Nakamura Y, Nashimoto H, Oshima T, Oyama S, Saito N, Sampei G, Satoh Y, Sivasundaram S, Tagami H, Horiuchi T. Construction of a contiguous 874-kb sequence of the Escherichia coli -K12 genome corresponding to 50.0-68.8 min on the linkage map and analysis of its sequence features. DNA Res 1997; 4:91-113. [PMID: 9205837 DOI: 10.1093/dnares/4.2.91] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The contiguous 874.423 base pair sequence corresponding to the 50.0-68.8 min region on the genetic map of the Escherichia coli K-12 (W3110) was constructed by the determination of DNA sequences in the 50.0-57.9 min region (360 kb) and two large (100 kb in all) and five short gaps in the 57.9-68.8 min region whose sequences had been registered in the DNA databases. We analyzed its sequence features and found that this region contained at least 894 potential open reading frames (ORFs), of which 346 (38.7%) were previously reported, 158 (17.7%) were homologous to other known genes, 232 (26.0%) were identical or similar to hypothetical genes registered in databases, and the remaining 158 (17.7%) showed no significant similarity to any other genes. A homology search of the ORFs also identified several new gene clusters. Those include two clusters of fimbrial genes, a gene cluster of three genes encoding homologues of the human long chain fatty acid degradation enzyme complex in the mitochondrial membrane, a cluster of at least nine genes involved in the utilization of ethanolamine, a cluster of the secondary set of 11 hyc genes participating in the formate hydrogenlyase reaction and a cluster of five genes coding for the homologues of degradation enzymes for aromatic hydrocarbons in Pseudomonas putida. We also noted a variety of novel genes, including two ORFs, which were homologous to the putative genes encoding xanthine dehydrogenase in the fly and a protein responsible for axonal guidance and outgrowth of the rat, mouse and nematode. An isoleucine tRNA gene, designated ileY, was also newly identified at 60.0 min.
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Affiliation(s)
- Y Yamamoto
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Japan
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32
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Yamamoto Y, Aiba H, Baba T, Hayashi K, Inada T, Isono K, Itoh T, Kimura S, Kitagawa M, Makino K, Miki T, Mitsuhashi N, Mizobuchi K, Mori H, Nakade S, Nakamura Y, Nashimoto H, Oshima T, Oyama S, Saito N, Sampei G, Satoh Y, Sivasundaram S, Tagami H, Horiuchi T. Construction of a contiguous 874-kb sequence of the Escherichia coli K-12 genome corresponding to the 50.0-68.8 min on the linkage map and analysis of its sequence features (supplement). DNA Res 1997; 4:169-78. [PMID: 9205845 DOI: 10.1093/dnares/4.2.169] [Citation(s) in RCA: 4] [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: 02/04/2023] Open
Affiliation(s)
- Y Yamamoto
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Japan
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33
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Nakajima T, Ota K, Ishihara S, Oyama S, Nishi M, Ohashi Y, Yanagisawa A. Combined intensive chemotherapy and radical surgery for incurable gastric cancer. Ann Surg Oncol 1997; 4:203-8. [PMID: 9142380 DOI: 10.1007/bf02306611] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [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: 02/04/2023]
Abstract
BACKGROUND To improve the poor prognosis of patients with advanced incurable gastric cancer, intensive chemotherapy combined with radical surgery was used. PATIENTS AND METHODS Thirty patients with incurable gastric cancer were treated with a combination of 5-fluorouracil (370 mg/m2) and leucovorin (30 mg/person), given intravenously for five consecutive days, followed by cisplatinum (70 mg/m2) and etoposide (70 mg/m2) on days 6 and 20, delivered through a catheter placed either in the aorta with its tip at the level of the ninth thoracic vertebra or in the celiac artery. This treatment (FLEP therapy) was repeated twice every 5 weeks. Radical or palliative surgery followed chemotherapy. RESULTS The overall response rate to the chemotherapy was 50.0% (15 of 30 patients, 95% confidence limit 0.305-0.671). Nineteen patients (15 with a partial response, three showing no change, and one with progressive disease) underwent surgery. Of these, nine underwent curative surgery and 10 palliative surgery. The median survival time was 6.5 months overall, 12.7 months for responders, and 4.7 months for nonresponders. Long-term survivors were exclusively found among patients with distant lymph node metastasis treated by curative surgery (55.6% at 5 years). CONCLUSIONS Favorable results of this small phase II study justify a phase III trial.
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Affiliation(s)
- T Nakajima
- Division of Gastrointestinal Surgery, Cancer Institute Hospital, Tokyo, Japan
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34
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Munakata T, Oyama S. Adaptation and linear-response theory. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1996; 54:4394-4398. [PMID: 9965591 DOI: 10.1103/physreve.54.4394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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35
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Oyama S, Miranda MT, Toma IN, Viviani W, Gambarini AG. Mitogenic activity of peptides related to the sequence of human fibroblast growth factor-1. Biochem Mol Biol Int 1996; 39:1237-44. [PMID: 8876978 DOI: 10.1080/15216549600201432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Linear synthetic peptides related to the human Fibroblast Growth Factor-1 (hFGF-1) segment [112-147] were tested for their capacity of mimicking FGF mitogenic activity, binding to heparin-Sepharose columns, stimulating DNA synthesis and competing with hFGF-1 for the cellular receptors. The results obtained indicated that the activity of these compounds is dependent on the presence of the sequence WFVGLK in their structures. The affinity for the cellular receptors increased when this sequence was elongated in order to incorporate amino acid residues that are important for FGF-heparin binding.
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Affiliation(s)
- S Oyama
- Departamento de Bioquímica, Universidade de São Paulo, Brasil
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36
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Takeichi Y, Kamei S, Oyama S, Baba S. Mobile tongue reconstruction with the free dorsalis pedis flap. Acta Otolaryngol Suppl 1996; 525:30-34. [PMID: 8908266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Reconstruction of the mobile tongue needs soft and thin tissue not to disturb tongue movement, and therefore a free forearm flap has usually been used for this kind of reconstruction. However, it entails a cosmetic problem, especially for young people. We have detained good results with tongue reconstructions using free dorsalis pedis flaps. The donor site of the dorsalis pedis flap is inconspicuous. The dorsalis pedis flap is thin (even among obese persons), has a long vessel pedicle, and stable blood supply. In cases of head and neck reconstruction, two teams can easily operate simultaneously. This flap is not as large as a forearm flap but it is large enough for hemitongue reconstruction. We measured the thickness of the soft tissue of both the dorsalis pedis and the forearm among obese volunteers. Dorsalis pedis was not as thick as the forearm.
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Affiliation(s)
- Y Takeichi
- Department of Otorhynolaryngology, Nagoya City University Medical School, Japan
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37
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Nakayama H, Ishihara S, Nakajima T, Ota K, Oyama S, Wakabayashi K, Nishi M, Yanagisawa A, Kato Y. [A case report of 16-year-old gastric cancer patient with a rapid recurrence after curative gastrectomy]. Gan To Kagaku Ryoho 1994; 21:1745-50. [PMID: 8080290] [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: 01/28/2023]
Abstract
A 16-year-old female patient with gastric cancer was recently treated at our institute. She had macroscopically curative surgery, but relapsed to die 7 months after surgery due to peritoneal dissemination. We experienced three teen-agers over past 45 years, who were 0.019% of all cases treated in our institute. Histological type of these cases was undifferentiated adenocarcinoma, exposing to serosa. Though they had suffered abdominal discomfort for long time, proper diagnosis was not done due to their young age. Even the teen-ager who has abdominal complaints should be subjected to a thorough examination of gastrointestinal tract. Oncogene analysis should be done for the familial strain of gastric cancer.
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Affiliation(s)
- H Nakayama
- Division of Gastrointestinal Surgery, Cancer Institute Hospital
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38
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Nakajima T, Ota K, Ishihara S, Oyama S, Nishi M, Hamashima N. [Meta-analysis of 10 postoperative adjuvant chemotherapies for gastric cancer in CIH]. Gan To Kagaku Ryoho 1994; 21:1800-5. [PMID: 8080299] [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: 01/28/2023]
Abstract
Six adjuvant chemotherapy protocols with 10 chemotherapy regimens were subjected to meta-analysis with an aim to clarify the survival benefits of adjuvant chemotherapy in gastric cancer. All adjuvant chemotherapies were compared with surgery alone, in cases from 1959 to 1982 in the Cancer Institute Hospital, Tokyo in the setting of controlled randomized study; and 1,177 gastric cancer patients with curative surgery were entered the studies. Pooled odds ratio and its 95% confidence interval was 0.63(0.51-0.78). The results suggested the survival benefits of adjuvant chemotherapy with mitomycin C and/or 5-fluorouracil in gastric cancer.
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Affiliation(s)
- T Nakajima
- Division of Surgeruy, Cancer Institute Hospital
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39
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Ishihara S, Nakajima T, Ota K, Oyama S, Nishi M. [The changes in the treatment of early gastric cancer--endoscopic mucosal resection and limited (nerve preserving) operation]. Gan To Kagaku Ryoho 1994; 21:1787-92. [PMID: 8080297] [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: 01/28/2023]
Abstract
We have been trying to perform endoscopic mucosal resection (ER) since 1987, and limited operation since 1985 (nerve preserving operation since 1991) for early gastric cancer. 205 patients were performed ER from 1978 to 1990, 78 patients were performed limited operation from 1985 to 1993. We perform ER according to the indication as follows: 1) differentiated IIa type, size approximately 2 cm, 2) differentiated IIc type, size approximately 1cm, Ul(-), 3) undifferentiated IIc type, size approximately 5mm, Ul(-). And the indication of limited operation is the patients with intramucosal cancer and tumor size approximately 2cm. Up to date, we have never experienced recurrence of these patients undergone ER or limited operation. As to QOL, these therapy will be expected to improve QOL of early gastric cancer patients, especially per os and body weight loss after surgery.
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Affiliation(s)
- S Ishihara
- Division of Surgery, Cancer Institute Hospital
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40
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Nakajima T, Ota K, Ishihara S, Oyama S, Nishi M. [Indication for the lymph node dissection of gastric cancer based on the pattern analysis small of lymphatic spread]. Gan To Kagaku Ryoho 1994; 21:1751-7. [PMID: 8080291] [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: 01/28/2023]
Abstract
A total of 8,230 cases of gastric cancer treated at CIH were subjected to the analysis of the pattern of lymphatic spread with an aim of getting indication for the lymph node dissection of Small gastric cancer. Modified dissection (D1-alpha) is indicated for the patients with following conditions: 1) every elevated or flat type mucosal cancer, 2) excavated (IIc) type mucosal cancer less than 10mm in diameter, 3) elevated or flat type submucosal cancer less than 10mm in diameter, 4) excavated submucosal cancer less than 5mm in diameter. Extended dissection (D2 + alpha) is indicated for small cancer which exposed to serosa. Cancer in the upper thirds needs total gastrectomy or cardiectomy according to the state of #5 and 6 nodes, with complete dissection of #1 to 11 nodes associated with sampling of #16 nodes. Total gastrectomy with complete dissection of #1 to 11 nodes and sampling of #16 nodes is indicated for the advanced small cancer in the middle thirds, and total gastrectomy with complete dissection of #1 to 13 nodes and sampling of #14, 16 nodes is indicated for cancer in the lower thirds.
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Affiliation(s)
- T Nakajima
- Division of Gastrointestinal Surgery, Cancer Institute Hospital
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41
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Ishihara S, Nakajima T, Ota K, Oyama S, Wakabayashi K, Nishi M. [The treatment and clinical issue of gastric cancer with infiltrating the adjacent organs]. Gan To Kagaku Ryoho 1994; 21:1793-9. [PMID: 8080298] [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: 01/28/2023]
Abstract
We discussed the advances and clinical issue including complications in the treatment of gastric cancer infiltrating the adjacent organs. Recent years, the proportion of the patients with gastric cancer infiltrating the adjacent organs are decreasing, but there isn't remarkable advances in the treatment result of them. That is due to the fact that about one half of them has distant metastasis, such as peritoneal dissemination or liver metastasis. Whatever the survival rate of the patients who was performed combined resection is better than unresected cases. The postoperative complications of the combined resection cases is two times as much as the uncombined resected cases. Therefore we should perform combined radical resection for the patients without distant metastasis, and for the patients with distant metastasis, we should perform palliative surgery for the purpose of improving QOL.
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Affiliation(s)
- S Ishihara
- Division of Surgery, Cancer Institute Hospital
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42
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Oyama S, Nakajima T, Ota K, Ishihara S, Wakabayashi K, Nishi M. [Left upper abdominal evisceration for advanced gastric cancer]. Gan To Kagaku Ryoho 1994; 21:1781-6. [PMID: 8080296] [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: 01/28/2023]
Abstract
To evaluate the clinical significance of the surgical procedure of left upper abdominal evisceration (LUAE), we analysed the prognosis of patients who received LUAE in the Cancer Institute Hospital from 1980 to 1990 using pair matching analysis. Survival benefits were observed in the patients with the tumor located in the upper or middle part of the stomach, and especially in those with Borrmann type 4 gastric cancer. Even in cases of peritoneal dissemination, patients who received LUAE survived longer than those with conventional total gastrectomy. These results indicated that LUAE should be a standard surgical approach for Bormann type 4 gastric cancer.
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Affiliation(s)
- S Oyama
- Division of Surgery, Cancer Institute Hospital
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43
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Nakajima T, Ota K, Ishihara S, Oyama S, Nishi M. [Progress of the treatment of gastric cancer in Cancer Institute Hospital, Tokyo]. Gan To Kagaku Ryoho 1994; 21:1734-44. [PMID: 8080289] [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: 01/28/2023]
Abstract
From 1946 to 1990, a total of 10,485 cases of gastric cancer patients were treated at the Cancer Institute Hospital (CIH), Tokyo. During the past 46 years, CIH contributed to various aspects of surgical treatment of gastric cancer; extensive radical surgery for advanced cancer, safe reconstruction methods after total gastrectomy, modified surgery for early stage cancer, and multimodality therapy for moderately advanced cancer. Five-year survival rate was 20% for all cases in 1940s, and 66.5% for 1980s. Improvement in the treatment results could be attributed to the relative increase in the number of early stage cancers, the increase in the rate of curative surgery (R0), and incorporation of multi-modality therapy before or after curative surgery. Stage-oriented therapy is mandatory for further improvement in the treatment results and the patient's quality of life after surgery.
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Affiliation(s)
- T Nakajima
- Division of Surgery, Cancer Institute Hospital
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44
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Ota K, Nakajima T, Ishihara S, Oyama S, Wakabayashi K, Nishi M. [Treatment of recurrent gastric cancer]. Gan To Kagaku Ryoho 1994; 21:1806-12. [PMID: 8080300] [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: 01/28/2023]
Abstract
The recurrence rate of resected gastric cancer was 31.9%. The rate was in creasingly higher in proportion to the lack of radicality. The most common type of recurrence was peritoneal dissemination, followed by hematogeneous metastasis, local recurrence, and distant lymph node metastasis. The treatments for recurrence were surgery (9.3%) and chemotherapy (16.1%). Systemic chemotherapy (intravenous iv) was common, and local chemotherapy (intraarterial ia, intraperitoneal ip) was rate. The efficacy of systemic chemotherapy (iv) for recurrent gastric cancer without local recurrence was suggested. The efficacy of local chemotherapy (ia) was suggested for peritoneal dissemination and local recurrence.
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Affiliation(s)
- K Ota
- Division of Surgery, Cancer Institute Hospital
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45
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Ishihara S, Nakajima T, Ota K, Oyama S, Wakabayashi K, Nishi M. [The analysis of prognosis of patients with gastric cancer with the nodal stage(N, n) and the number of involved lymph nodes]. Gan To Kagaku Ryoho 1994; 21:1758-61. [PMID: 8080292] [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: 01/28/2023]
Abstract
Now we use the nodal grade (N, n) as a prognostic indicator in patients with gastric cancer according to the general rules for the gastric cancer study. But there are both of patients with good and poor prognosis in the same nodal grade. Then we analyzed the survival of patients with gastric cancer based on the nodal grade and the number involved lymph nodes, and discussed the new prognostic indicator with both of them. We classified the three groups based on the number of involved nodes as follows: 0.1-4.5-. There is the differences in survival between each pair of groups statistically. The relationship between the nodal grade (N, n) and the number of lymph node metastasis is that the survival of patients with involved nodes more than five is equal to the survival of the patients with high nodal grade and involved nodes 1-4. Therefore it suggest that the new grading consisting of them will be more better prognostic indicator.
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Affiliation(s)
- S Ishihara
- Division of Surgery, Cancer Institute Hospital
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46
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Oyama S, Nakajima T, Ota K, Ishihara S, Wakabayashi K, Nishi M. [Prognostic factors of the gastric cancer patients without distant metastasis]. Gan To Kagaku Ryoho 1994; 21:1762-7. [PMID: 8080293] [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: 01/28/2023]
Abstract
From 1946 to 1990, 10,485 patients with gastric cancer were been surgically treated in the Cancer Institute Hospital, Tokyo. Retrospectively, we analyzed prognostic factors, especially in those without distant metastasis. Prognosis of the patients with tumors which invaded the proper muscle layer improved dramatically (from 70% to 90%). However, patients who had advanced tumors with serosal invasion did not show good survived (from 20% to 40%). To improve the prognosis of patients with serosal positive gastric cancer, a new and effective prophylactic therapy for peritoneal recurrence is needed.
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Affiliation(s)
- S Oyama
- Division of Surgery, Cancer Institute Hospital
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47
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Oyama S, Nagatomo C, Bonilla G, Matsuura M, Focesi Jr A. Bothrops alternatus hemoglobin components. Oxygen binding properties and globin chain hydrophobic analysis. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0305-0491(93)90228-w] [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: 10/27/2022]
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48
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Oyama S, Izutsu T. [Cell cycle analysis of endometrial cancer cells in vitro treated with growth factor and steroid hormone]. Hum Cell 1992; 5:363-71. [PMID: 1304800] [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: 12/26/2022]
Abstract
The aim of this study was to overtake the mechanism of the control system in endometrial cancer cell line in vitro. Ishikawa cell (IK cell) and HEC-1 cell (HEC cell) derived from endometrial cancers were cultured with serum free medium (SFM-101). IK cell possessed Estrogen receptor (ER), Progesterone receptor (PR), Epidermal growth factor (EGF) and its receptor (EGFR). HEC cell had PR, EGF, and EGFR, however HEC cell did not keep ER. EGF stimulated the growth of IK cell, but the growth of HEC cell was not stimulated by EGF. S phase cells were increased by EGF in IK cell, but were not increased by EGF in HEC cell. The growth of IK cell was stimulated significantly by EGF and Estradiol-17 beta (E2) +EGF than control. However, E2+EGF did not stimulate the growth of IK cell than EGF significantly. Danazol (D) and D+EGF inhibited the growth of IK cell significantly than control. S phase cells were decreased by the treatment of D and D+EGF. From our results, EGF stimulated the growth of ER positive endometrial cancer cell, but EGF did not stimulate ER negative endometrial cancer cell. E2+EGF and EGF stimulated the growth of IK cell as a same. However, D inhibited the growth of IK cell that was stimulated by EGF.
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Affiliation(s)
- S Oyama
- Department of Obstetrics and Gynecology, Iwate Medical University, Japan
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49
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Oyama S, Kinoshita K, Ninomiya I, Yonemura Y, Miyazaki I, Tanaka M, Sasaki T. [In vitro chemosensitivity test using collagen gel matrix for human gastric carcinomas]. Nihon Geka Gakkai Zasshi 1991; 92:1444-50. [PMID: 1961182] [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: 12/29/2022]
Abstract
The usefulness of an in vitro human tumor culture system using a specialized collagen gel matrix derived from pig skin was retrospectively evaluated as a chemosensitivity test for human gastric carcinomas. Seven xenograft tumors derived from human gastric cancers were examined by this system (CGM assay) and compared with the data obtained by a nude mice assay (NM assay) and a succinic dehydrogenase inhibition test (SDI test). Xenograft tumors had three-dimensional growth on the collagen gel matrix like that in vivo. There was increasing cell kill with rising cytotoxic drug concentration. When drug sensitivity was evaluated as effective based on an inhibition rate of 40% or more in the CGM assay, drug sensitivity as measured by the CGM assay corresponded with that measured by the NM assay for all xenograft tumors but not the SDI test. This system could be applied for chemosensitivity test of scirrhous gastric carcinomas. It was suggested that the CGM assay may be more like an in vivo like chemosensitivity test and clinically useful testing for the patients with gastric cancer, including scirrhous one.
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Affiliation(s)
- S Oyama
- Department of Surgery II, School of Medicine, Kanazawa University, Japan
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50
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Yamada A, Cao MS, Imanishi J, Oyama S, Abe A, Katagiri S. Antigenic analysis of recent H1N1 influenza viruses with monoclonal antibodies. Acta Virol 1991; 35:343-9. [PMID: 1724874] [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: 12/28/2022]
Abstract
Antigenic analysis of recently isolated H1 influenza viruses was performed using haemagglutination inhibition (HI) assay with monoclonal antibodies to the haemagglutinin (HA) subunit. Tests using monoclonal antibodies against the HA of the A/England/333/80 (H1N1) and A/Yamagata/120/86 (H1N1) viruses revealed that the major antigenic drift occurred in 1985 or 1986 and A/Dunedin/6/83-like virus became a major strain after 1986.
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Affiliation(s)
- A Yamada
- Department of Microbiology, Kyoto Prefectural University of Medicine, Japan
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