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Nakao S, Hirata H, Yoshihara T, Kobayashi T, Tsukamoto M, Egashira Y, Mawatari M, Morimoto T. Conservative management of spontaneous spinal epidural hematoma: A case report with favorable prognosis. Clin Case Rep 2024; 12:e8760. [PMID: 38686020 PMCID: PMC11056786 DOI: 10.1002/ccr3.8760] [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: 01/28/2024] [Revised: 03/11/2024] [Accepted: 03/16/2024] [Indexed: 05/02/2024] Open
Abstract
Sudden spinal epidural hematoma (SSEH) is relatively rare. Sudden pain from the neck to the back and subsequent extremity paralysis necessitate immediate head and cervical magnetic resonance imaging or computed tomography, keeping SSEH in mind. Although surgery is recommended for progressive paralysis, conservative treatment is indicated for mildly symptomatic cases.
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Affiliation(s)
- Satoshi Nakao
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Hirohito Hirata
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Tomohito Yoshihara
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Takaomi Kobayashi
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Masatsugu Tsukamoto
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of MedicineSaga UniversitySagaJapan
| | - Masaaki Mawatari
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Tadatsugu Morimoto
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
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2
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Ito H, Hirata H, Yoshihara T, Tsukamoto M, Watanabe K, Egashira Y, Mawatari M, Morimoto T. Spinal subdural hematoma with sudden onset of paraplegia in a patient on oral anticoagulant therapy. Clin Case Rep 2024; 12:e8895. [PMID: 38756616 PMCID: PMC11096278 DOI: 10.1002/ccr3.8895] [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: 01/25/2024] [Revised: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 05/18/2024] Open
Abstract
Spinal subdural hematoma is uncommon but may become more prevalent with increasing anticoagulant use. Early diagnosis from symptoms like lower back pain and leg paralysis is crucial for timely intervention.
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Affiliation(s)
- Hayato Ito
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Hirohito Hirata
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Tomohito Yoshihara
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Masatsugu Tsukamoto
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Kazuyuki Watanabe
- Department of Orthopaedic SurgeryFukushima Medical UniversityFukushimaJapan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of MedicineSaga UniversitySagaJapan
| | - Masaaki Mawatari
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
| | - Tadatsugu Morimoto
- Department of Orthopedic Surgery, Faculty of MedicineSaga UniversitySagaJapan
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3
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Kakinoki H, Yamaguchi Y, Yukimoto M, Kakinoki Y, Udo K, Tobu S, Takeshita G, Egashira Y, Yamaguchi K, Noguchi M. A case of bleeding shock induced by injury of the intercostal artery following percutaneous nephrolithotripsy. IJU Case Rep 2024; 7:18-21. [PMID: 38173459 PMCID: PMC10758889 DOI: 10.1002/iju5.12657] [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: 06/29/2023] [Accepted: 10/06/2023] [Indexed: 01/05/2024] Open
Abstract
Introduction The risk of postoperative bleeding complications should be concerned to perform percutaneous nephrolithotripsy. Most of the vascular injuries occurred at the peripheral renal artery in the previous reports. We experienced a case of bleeding shock induced by the injury of the intercostal artery in the abdominal wall following percutaneous nephrolithotripsy. Case presentation A 56-year-old woman had been in the bleeding shock status on the 2nd day after percutaneous nephrolithotoripsy. Emergently, contrast-enhanced computed tomography was performed and extravasation of contrast agents was seen in the abdominal wall. Injuries of the intercostal artery were identified in the angiography and controlled by transcatheter arterial embolization. Conclusion The intercostal arteries could be injured in the anterolateral zone of the abdominal wall over the end of the ribs. Contrast-enhanced computed tomography was useful to detect the bleeding point. Transcatheter arterial embolization was an effective and safe method to control bleedings from them.
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Affiliation(s)
- Hiroaki Kakinoki
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Yukako Yamaguchi
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Minika Yukimoto
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Yuka Kakinoki
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Kazuma Udo
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Shohei Tobu
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
| | - Go Takeshita
- Department of Radiology, Faculty of MedicineSaga UniversitySagaJapan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of MedicineSaga UniversitySagaJapan
| | - Ken Yamaguchi
- Department of Radiology, Faculty of MedicineSaga UniversitySagaJapan
| | - Mitsuru Noguchi
- Department of Urology, Faculty of MedicineSaga UniversitySagaJapan
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4
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Egashira Y, Azama S, Nojiri J, Takeshita G, Irie H. Embolization of renal arteriovenous malformation using double-balloon catheter. J Vasc Interv Radiol 2022; 33:1006-1008. [PMID: 35490931 DOI: 10.1016/j.jvir.2022.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/30/2022] [Accepted: 04/21/2022] [Indexed: 11/19/2022] Open
Affiliation(s)
- Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Shinya Azama
- Department of Radiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Junichi Nojiri
- Department of Radiology, Medical Corporation Kouhoukai, Takagi Hospital, Fukuoka, Japan
| | - Go Takeshita
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Hiroyuki Irie
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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Kawata N, Takahashi H, Iwane S, Inoue K, Kojima M, Kohno M, Tanaka K, Mori H, Isoda H, Oeda S, Matsuda Y, Egashira Y, Nojiri J, Irie H, Eguchi Y, Anzai K. FIB-4 index-based surveillance for advanced liver fibrosis in diabetes patients. Diabetol Int 2021; 12:118-125. [PMID: 33479587 DOI: 10.1007/s13340-020-00453-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 03/18/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022]
Abstract
Liver fibrosis is associated with lifestyle-related diseases, including diabetes. The identification of diabetic patients with severe liver fibrosis is important, but a simple and reliable diagnostic procedure remains to be determined. We conducted an observational study to evaluate the performance of a FIB-4 index-based screening strategy for the diagnosis of advanced liver fibrosis in patients with diabetes or prediabetes. Two hundred and forty-two patients underwent abdominal imaging in our Study. According to the abdominal imaging findings, fatty liver, liver cirrhosis, and hepatocellular carcinoma were defined, and their association with FIB-4 index evaluated. The prevalences of liver cirrhosis and hepatocellular carcinoma in patients with a high (≥ 2.67; liver cirrhosis: 42.9%, hepatocellular carcinoma: 14.3%) FIB-4 index were significantly higher than in those with an intermediate (1.3 ≤ FIB-4 < 2.67; liver cirrhosis: 1.6%, hepatocellular carcinoma: 0.8%) or low FIB-4 index (< 1.3; liver cirrhosis: 1.2%, hepatocellular carcinoma: 0%). The diagnostic accuracy, specificity, and sensitivity of the FIB-4 index for the diagnosis of liver cirrhosis or hepatocellular carcinoma were 84.3%, 85.5%, and 89.3%, respectively, with an optimized cut-off value of 2.96 (sensitivity = 0.86, specificity = 0.98). Using an optimized cut-off value, FIB-4 index might be useful to identify liver cirrhosis or hepatocellular carcinoma in diabetes patients with high diagnostic accuracy.
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Affiliation(s)
- Nozomi Kawata
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | | | - Kanako Inoue
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Motoyasu Kojima
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Michiko Kohno
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Kenichi Tanaka
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | - Hitoe Mori
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
| | | | | | - Yayoi Matsuda
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan.,Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Jyunichi Nojiri
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Hiroyuki Irie
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | | | - Keizo Anzai
- Division of Metabolism and Endocrinology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga Japan
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6
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Hirakawa H, Komiya K, Nakashima C, Ogusu S, Nakamura T, Tanaka M, Takahashi K, Egashira Y, Kai K, Kimura S, Sueoka-Aragane N. A case of osimertinib-resistant lung adenocarcinoma responded effectively to alternating therapy. Ann Transl Med 2018; 6:464. [PMID: 30603652 DOI: 10.21037/atm.2018.11.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report a case of initial lung adenocarcinoma in which transformation to small cell lung carcinoma (SCLC) was observed after acquired resistance to the 3rd generation epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) osimertinib and alternating treatment between chemotherapy and osimertinib was effective. A 61-year-old woman with EGFR mutation positive stage IV lung adenocarcinoma was administered 1st generation EGFR-TKI for 8 months as the first line therapy, then chemotherapy and 2nd generation EGFR-TKI after progressive disease (PD). Four years after initial diagnosis, EGFR T790M was detected in a metastatic lesion of the right thoracic wall and osimertinib was prescribed. Although partial response (PR) was achieved, a new metastatic lesion appeared in the right pleurum near the diaphragm, in which SCLC characteristics were observed with elevation of pro-gastrin-releasing peptide (pro-GRP) at the time of PD under osimertinib. Osimertinib was discontinued and carboplatin plus irinotecan chemotherapy was chosen as the next treatment, leading to PR after 2 cycles. Subsequently, the right thoracic wall tumor harboring T790M and the right pleural tumor near the diaphragm showing transformation to SCLC exhibited opposite responses to therapy alternating between osimertinib and chemotherapy. It is concluded that extended disease control can be achieved by combining appropriate treatments according to the mechanisms of resistance inferred from precise genetic and pathological examination in real time.
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Affiliation(s)
- Haruki Hirakawa
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Kazutoshi Komiya
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Chiho Nakashima
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Shinske Ogusu
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Tomomi Nakamura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Masahide Tanaka
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Koichiro Takahashi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Keita Kai
- Department of Pathology, Saga University Hospital, Saga, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
| | - Naoko Sueoka-Aragane
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Saga University, Saga, Japan
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7
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Kidoguchi K, Yoshimura M, Kojima K, Ureshino H, Egashira R, Yokoo M, Kai K, Egashira Y, Ohshima K, Ando T, Kimura S. Oral ulceration: an unusual manifestation of lymphomatoid granulomatosis. Ann Hematol 2018; 98:1305-1307. [PMID: 30284019 DOI: 10.1007/s00277-018-3506-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/30/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Keisuke Kidoguchi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Mariko Yoshimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Kensuke Kojima
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
| | - Hiroshi Ureshino
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Ryoko Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Masako Yokoo
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Keita Kai
- Department of Pathology, Saga University Hospital, Saga, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichi Ohshima
- Department of Pathology, School of Medicine, Kurume University, Kurume, Japan
| | - Toshihiko Ando
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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8
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Komiya K, Nakashima C, Nakamura T, Hirakawa H, Abe T, Ogusu S, Takahashi K, Takeda Y, Egashira Y, Kimura S, Sueoka-Aragane N. Current Status and Problems of T790M Detection, a Molecular Biomarker of Acquired Resistance to EGFR Tyrosine Kinase Inhibitors, with Liquid Biopsy and Re-biopsy. Anticancer Res 2018; 38:3559-3566. [PMID: 29848710 DOI: 10.21873/anticanres.12628] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 04/29/2018] [Accepted: 05/07/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The purpose of this study was to consider appropriate application of liquid and re-biopsy through analysis of current status in practice. PATIENTS AND METHODS We performed a retrospective analysis of 22 patients with epidermal growth factor receptor (EGFR) mutation-positive non-small cell lung cancer who exhibited 1st/2nd generation EGFR-tyrosine kinase inhibitors resistance. The cobas® method was used to detect T790M with re-biopsy and the mutation-biased PCR and quenched probe method was used with liquid biopsy. RESULTS T790M detection rate was 52% with re-biopsy and 58% with liquid biopsy. The concordance between tissue and plasma was 58%. One patient who was T790M-positive with liquid biopsy showed heterogeneity among metastatic lesions in terms of osimertinib efficacy, as revealed by T790M detection with re-biopsy. CONCLUSION Liquid biopsy reflects the whole body, whereas re-biopsy is useful for spatial diagnosis. Considering these characteristics, a combination of liquid and re-biopsy contribute to enhanced treatment.
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Affiliation(s)
- Kazutoshi Komiya
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Chiho Nakashima
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Tomomi Nakamura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Haruki Hirakawa
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Tomonori Abe
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Shinsuke Ogusu
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichiro Takahashi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuji Takeda
- Department of Thoracic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Naoko Sueoka-Aragane
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
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9
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Egashira Y, Singh S, Bandula S, Illing R. Percutaneous High-Energy Microwave Ablation for the Treatment of Pulmonary Tumors: A Retrospective Single-Center Experience. J Vasc Interv Radiol 2016; 27:474-9. [PMID: 26944360 DOI: 10.1016/j.jvir.2016.01.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 12/28/2015] [Accepted: 01/01/2016] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To evaluate the safety and efficacy of percutaneous high-energy microwave ablation (MWA) for the treatment for pulmonary tumors. MATERIALS AND METHODS A retrospective review was undertaken of 44 patients (21 men, 23 women; median age, 66 y; range, 17-89 y) who underwent 62 sessions of high-energy MWA for 87 pulmonary tumors at a single tertiary referral center between June 2012 and June 2014. Primary tumor origin was sarcoma (n = 23), colorectal (n = 16), lung (n = 2), esophageal (n = 1), breast (n = 1), and bladder (n = 1). Median tumor size was 12 mm (range, 6-45 mm). Technical success was recorded contemporaneously, complication rate at 30 days was recorded prospectively, and technique effectiveness was assessed by longitudinal follow-up CT scan. RESULTS Primary technical success was achieved in 94% of ablation sessions. The median follow-up interval was 15 months (range, 6.2-29.5 mo) during which time local tumor progression was observed in two of 87 tumors (technique effectiveness 98%). Pneumothorax requiring chest tube insertion occurred in 19%; delayed pneumothorax occurred in four patients. No hemoptysis, infection, or other complications were recorded. CONCLUSIONS High-energy MWA is safe and effective for the destruction of lung tumors.
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Affiliation(s)
- Yoshiaki Egashira
- Interventional Oncology Service, University College London Hospital, London, United Kingdom; Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan.
| | - Saurabh Singh
- Centre for Medical Imaging, University College London, London, United Kingdom
| | - Steve Bandula
- Centre for Medical Imaging, University College London, London, United Kingdom
| | - Rowland Illing
- Interventional Oncology Service, University College London Hospital, London, United Kingdom
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10
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Noguchi T, Nishihara M, Egashira Y, Azama S, Hirai T, Kitano I, Yakushiji Y, Kawashima M, Irie H. Arterial spin-labeling MR imaging of cerebral hemorrhages. Neuroradiology 2015; 57:1135-44. [PMID: 26280515 DOI: 10.1007/s00234-015-1574-9] [Citation(s) in RCA: 11] [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: 03/06/2015] [Accepted: 08/05/2015] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The purpose of this study is to identify the characteristics of brain perfusion measured by arterial spin-labeling magnetic resonance imaging (ASL-MRI) in cerebral hemorrhages. METHODS Brain blood flow values (CBF-ASL values) for cerebral and cerebellar hemispheres and segmented cerebral regions were measured by ASL-MRI in 19 putaminal hemorrhage patients and 20 thalamic hemorrhage patients in acute or subacute stages. We assessed the lateralities of CBF-ASL values and the relationships between CBF-ASL values and other imaging findings and clinical manifestations. RESULTS Both the 19 putaminal hemorrhage patients and the 20 thalamic hemorrhage patients had significantly low CBF-ASL values of the contralateral cerebellum in subacute stage, suggesting that ASL-MRI might delineate crossed cerebellar diaschisis (CCD). Ipsilateral low CBF-ASL values were observed in frontal lobes and thalami with a putaminal hemorrhage and lentiform nuclei, temporal lobes, and parietal lobes with a thalamic hemorrhage, suggesting that ASL-MRI showed the ipsilateral cerebral diaschisis (ICD). In the putaminal hemorrhage patients, the hematoma volume negatively affected both the bilateral cerebellar and cerebral hemispheric CBF-ASL values. In the thalamic hemorrhage patients, a concomitant intraventricular hemorrhage caused low cerebral hemispheric CBF-ASL values. CONCLUSION The use of ASL-MRI is sensitive to the perfusion abnormalities and could thus be helpful to estimate functional abnormalities in cerebral hemorrhage patients.
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Affiliation(s)
- Tomoyuki Noguchi
- Department of Radiology, National Center for Global Health and Medicine, 1-21-1, Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. .,Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan.
| | - Masashi Nishihara
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Shinya Azama
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Tetsuyoshi Hirai
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Isao Kitano
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Yusuke Yakushiji
- Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Masatou Kawashima
- Department of Neurosurgery, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
| | - Hiroyuki Irie
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, Saga, Japan
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11
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Miyamoto N, Takao S, Matsuura T, Matsuzaki Y, Yamada T, Fujii Y, Matsuo Y, Kidani T, Egashira Y, Umekawa T, Shimizu S, Shirato H, Umegaki K. WE-EF-303-05: Development and Commissioning of Real-Time Imaging Function for Respiratory-Gated Spot-Scanning Proton Beam Therapy. Med Phys 2015. [DOI: 10.1118/1.4925996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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12
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Noguchi T, Kawashima M, Nishihara M, Egashira Y, Azama S, Irie H. Noninvasive method for mapping CVR in moyamoya disease using ASL-MRI. Eur J Radiol 2015; 84:1137-43. [PMID: 25816991 DOI: 10.1016/j.ejrad.2015.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 12/04/2014] [Revised: 03/02/2015] [Accepted: 03/10/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE To project a noninvasive method for mapping cerebrovascular reserve (CVR) in moyamoya disease (MMD) using ASL-MRI. METHODS 16 MMD patients underwent cerebral blood flow (CBF) examinations by standard ASL-MRI, pulse-wave-synchronized ASL-MRI (pulsy ASL-MRI) which tagged the arterial blood coincident with a peak of a pulse wave, and single photon emission computed tomography (SPECT) imagings with iodine-123-N-isopropyl-p-iodoamphetamine in the resting (rest-IMP) and after acetazolamide challenge (ACZ-IMP). Hemispheric 32-sided cerebral blood flow (CBF) values were measured with normalized CBF maps created from standard ASL-MRI (standard-ASL value), pulsy ASL-MRI (pulsy-ASL value), rest-IMP (rest-IMP value), and ACZ-IMP (ACZ-IMP value). CVR based on rest-IMP and ACZ-IMP values (IMP-CVR) was calculated. ASL-CVR was also calculated on the basis of corrected standard-ASL values and pulsy-ASL values, which were adjusted to the ACZ-IMP values and rest-IMP values, respectively, by the least-squares method. We assessed the relationships between rest-IMP values and pulsy-ASL values, ACZ-IMP values and standard-ASL values, and IMP-CVR and ASL-CVR. RESULTS Significant relationships were observed between rest-IMP values and pulsy-ASL values (correlation coefficient (r=0.557, p<0.01)), ACZ-IMP values and standard-ASL values (r=0.825, p<0.01), and IMP-CVR and ASL-CVR (r=0.736, p<0.01). CONCLUSIONS ASL-MRI is equivalent to SPECT and that it might serve as a noninvasive method for mapping CVR in MMD.
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Affiliation(s)
- Tomoyuki Noguchi
- Department of Radiology, National center for Global Health and Medicine, 1-21-1, Toyama, Shinjuku-ku, Tokyo 162-8655, Japan; Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
| | - Masatou Kawashima
- Department of Neurosugery, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
| | - Masashi Nishihara
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
| | - Shinya Azama
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
| | - Hiroyuki Irie
- Department of Radiology, Faculty of Medicine and Graduate School of Medicine, Saga University, 5-1-1, Nabeshima, Saga 849-8501, Japan(1).
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Noguchi T, Nishihara M, Hara Y, Hirai T, Egashira Y, Azama S, Irie H. A technical perspective for understanding quantitative arterial spin-labeling MR imaging using Q2TIPS. Magn Reson Med Sci 2014; 14:1-12. [PMID: 25500774 DOI: 10.2463/mrms.2013-0064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
We illustrate the fundamental theoretical principles of arterial spin-labeling (ASL) magnetic resonance imaging (MRI) and show a system that employs the second version of quantitative imaging of perfusion using a single subtraction (Q2TIPS) to quantify cerebral blood flow (CBF). We also discuss the effects of the parameters used in Q2TIPS on CBF values as measured with ASL-MRI.
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Affiliation(s)
- Tomoyuki Noguchi
- Department of Radiology, National Center for Global Health and Medicine (NCGM) 1-21-1, Toyama, Shinjuku-Ku, Tokyo 162-8655, Japan; Faculty of Medicine, Saga University.
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Egashira Y, Nishio T, Hotta K, Kohno R, Uesaka M. Application of the pencil-beam redefinition algorithm in heterogeneous media for proton beam therapy. Phys Med Biol 2013; 58:1169-84. [PMID: 23370731 DOI: 10.1088/0031-9155/58/4/1169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In proton beam therapy, changes in the proton range due to lateral heterogeneity may cause serious errors in the dose distribution. In the present study, the pencilbeam redefinition algorithm (PBRA) was applied to proton beam therapy to address the problem of lateral density heterogeneity. In the calculation, the phase-space parameters were characterized for multiple range (i.e. proton energy) bins for given pencil beams. The particles that were included in each pencil beam were transported and redefined periodically until they had stopped. The redefined beams formed a detouring path that was different from that of the non-redefined pencil beams, and the path of each redefined beam was straight. The results calculated by the PBRA were compared with measured proton dose distributions in a heterogeneous slab phantom and an anthropomorphic phantom. Through the beam redefinition process, the PBRA was able to predict the measured proton-detouring effects. Therefore, the PBRA may allow improved calculation accuracy when dealing with lateral heterogeneities in proton therapy applications.
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Affiliation(s)
- Y Egashira
- Department of Bioengineering, Graduate School of Engineering, University of Tokyo, 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan.
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Kuwabara H, Goto M, Yuki M, Egashira Y. Education and Imaging. Gastrointestinal: brain metastasis of alpha-fetoprotein producing gastric adenocarcinoma. J Gastroenterol Hepatol 2013; 28:203. [PMID: 23278155 DOI: 10.1111/jgh.12008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- H Kuwabara
- Department of Pathology, Osaka Medical College, Osaka, Japan
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Ishiguro M, Kawasaki K, Suzuki Y, Ishizuka F, Mishiro K, Egashira Y, Ikegaki I, Tsuruma K, Shimazawa M, Yoshimura S, Iwama T, Hara H. A Rho kinase (ROCK) inhibitor, fasudil, prevents matrix metalloproteinase-9-related hemorrhagic transformation in mice treated with tissue plasminogen activator. Neuroscience 2012; 220:302-12. [PMID: 22710066 DOI: 10.1016/j.neuroscience.2012.06.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Revised: 06/01/2012] [Accepted: 06/07/2012] [Indexed: 01/13/2023]
Abstract
Thrombolysis with tissue plasminogen activator (tPA) is the only FDA-approved therapy for acute ischemic stroke. However, hemorrhagic transformation, neurotoxicity, and a short treatment time window comprise major limitations for thrombolytic therapy. The purpose of the present study was to investigate whether fasudil, a Rho kinase (ROCK) inhibitor, would prevent tPA-associated hemorrhagic transformation and extend the reperfusion window in an experimental stroke model in mice. Mice subjected to 6-h middle cerebral artery occlusion were treated with delayed tPA alone, with combined tPA plus fasudil, or with a vehicle. We used histological and neurobehavioral measures to assess the effects of the treatment at 18 h and 7 days after the reperfusion. To investigate the mechanism of fasudil's beneficial effects further, we also performed an in vitro study with tPA and fasudil in human brain microvascular endothelial cells. Combination therapy with tPA plus fasudil prevented the development of hemorrhagic transformation, but did not reduce the infarct volumes. These changes significantly reduced mortality and increased locomotor activity at 7 days after the reperfusion. Furthermore, the administration of both drugs prevented injury to the human brain endothelial cells via the reduction of matrix metalloproteinase-9 (MMP-9) activity. These findings indicate that fasudil prevents the hemorrhagic transformation induced by focal cerebral ischemia in mice treated with tPA, at least in part, by inhibiting the increased activity of MMP-9 in endothelial cells.
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Affiliation(s)
- M Ishiguro
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
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Nakata B, Amano R, Matsuoka J, Sugimori S, Ohsawa M, Wakasa K, Egashira Y, Kimura K, Yamada N, Hirakawa K. Spontaneously complete regression of pseudolymphoma of the remnant pancreas after pancreaticoduodenectomy. Pancreatology 2012; 12:215-8. [PMID: 22687376 DOI: 10.1016/j.pan.2012.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Revised: 01/19/2012] [Accepted: 02/17/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreatic pseudolymphoma is extremely rare. METHOD We present multiple pseudolymphomas in the head and body of the pancreas. The hypoechoic lesions observed by endoscopic ultrasound were enhanced in late-phase angio-computed tomography and homogeneously hypointensive in T1-weighted magnetic resonance imaging (MRI). (18)F-fluorodeoxyglucose positron emission tomography showed strong accumulation in the lesions. The lesions were suspected to be non-functioning islet cell carcinoma. The intraoperative pathological diagnosis for the specimen obtained by a pylorus-preserving pancreaticoduodenectomy was non-neoplastic lymphoid cells. The remnant lesion in the pancreatic body was preserved. RESULTS Macroscopically, the mass was well-circumscribed gray-white colored lesion. The pathological diagnosis was pancreatic pseudolymphoma. The lesion in the remnant pancreas spontaneously disappeared within one year after the operation. CONCLUSION The differential diagnosis of pancreatic pseudolymphoma from malignant tumor is very difficult, however, the image findings demonstrated here may be informative. The spontaneous disappearance of pancreatic pseudolymphoma was firstly observed in the present case.
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Affiliation(s)
- B Nakata
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
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18
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Yoshimura S, Kawasaki M, Yamada K, Enomoto Y, Egashira Y, Hattori A, Nishigaki K, Minatoguchi S, Iwama T. Visualization of internal carotid artery atherosclerotic plaques in symptomatic and asymptomatic patients: a comparison of optical coherence tomography and intravascular ultrasound. AJNR Am J Neuroradiol 2011; 33:308-13. [PMID: 22051806 DOI: 10.3174/ajnr.a2740] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE OCT has been reported as a high-resolution imaging tool for characterizing plaque in the coronary arteries. The present study aimed to evaluate the ability of OCT to visualize carotid artery plaques compared with that of IVUS in asymptomatic and symptomatic patients. MATERIALS AND METHODS OCT was performed for 34 plaques (17 symptomatic, 17 asymptomatic) in 30 patients during CAS under a proximal cerebral protection method. OCT was performed before balloon angioplasty and after stent placement. IVUS was also performed just after OCT. RESULTS No technical or neurologic complications were encountered by using OCT. An inner catheter was used in 12 of 34 procedures (35.3%) for advancing the OCT image wire beyond the site of stenosis. OCT clearly visualized intraluminal thrombus in 15 of 34 plaques (44.1%), whereas IVUS detected a thrombus in 1 plaque (2.9%, P < .001). Neovascularization was demonstrated in 13 of 34 plaques (38.2%) by OCT, but not by IVUS (0%, P < .001). Intraluminal thrombus was more frequently observed in symptomatic plaques (13 of 17, 76.5%) than in asymptomatic plaques (2 of 17, 11.8%; P < .001). Interobserver and intraobserver variability with OCT diagnosis was excellent for thrombus, ulceration, neovascularization, and lipid pool. CONCLUSIONS The present findings suggest that OCT can safely and precisely visualize human carotid plaques during CAS and that intraluminal thrombus and neovascularization are more frequently detected in symptomatic plaques.
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Affiliation(s)
- S Yoshimura
- Department of Neurosurgery, Graduate School of Medicine, Gifu University, Gifu, Japan.
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Egashira Y, Nishio T, Matsuura T, Kameoka S, Uesaka M. SU-E-T-721: Spatial Re-Sampling of Pencil Beams to Improve the Dose-Calculation Accuracy in Proton Therapy. Med Phys 2011. [DOI: 10.1118/1.3612683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Irie H, Kamochi N, Nojiri J, Egashira Y, Sasaguri K, Kudo S. High b-value diffusion-weighted MRI in differentiation between benign and malignant polypoid gallbladder lesions. Acta Radiol 2011; 52:236-40. [PMID: 21498356 DOI: 10.1258/ar.2010.100234] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Several studies have reported the effectiveness of high b-value diffusion-weighted MR imaging (DWI) in the abdominal region, and have found that various malignant tumors may show high signal intensity on DWI, reflecting their high cellularity and/or their long relaxation time. The value of ADC measurement has also been documented for the diagnosis of several abdominal malignancies. PURPOSE To retrospectively evaluate the usefulness of high b-value DWI in differentiating between benign and malignant polypoid gallbladder lesions. MATERIAL AND METHODS The study population consisted of 10 benign (three hyperplastic polyps and seven adenomas) and 13 malignant (all adenocarcinomas) polypoid gallbladder lesions. DWI was evaluated by two observers. Qualitatively, the signal intensity of the lesions on DWI was visually evaluated and categorized as iso, high, or very high. Quantitatively, the ADC values of the lesions were measured from ADC maps. Statistical analysis was performed using a two-tailed Fisher's exact test and the Mann-Whitney test, respectively. RESULTS Qualitative analysis revealed a statistical difference (P = 0.0041). Six of 10 benign lesions were categorized as iso, and the remaining four were categorized as high. In the 13 malignant lesions, one was categorized as iso, five as high, and seven as very high. The ADC values of the malignant lesions (1.34 ± 0.50 × 10(-3) mm(2)/sec) were significantly lower than those of the benign lesions (2.26 ± 0.44 × 10(-3) mm(2)/sec) (P = 0.00016). CONCLUSION High b-value DWI may be useful for differentiating between benign and malignant polypoid gallbladder lesions by the visual assessment of DWI and ADC measurement.
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Affiliation(s)
- Hiroyuki Irie
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Noriyuki Kamochi
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Junichi Nojiri
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Yoshiaki Egashira
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Kohei Sasaguri
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
| | - Sho Kudo
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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Mizuguchi M, Irie H, Nanazono T, Kamochi N, Egashira Y, Nishihara M, Shimoda R, Tsunada S, Iwakiri R, Fujimoto K, Kudo S. Aneurismal type of colorectal cancer: imaging characteristics of gastrointestinal endoscopy, computed tomography and magnetic resonance imaging. Hepatogastroenterology 2011; 58:395-399. [PMID: 21661402] [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: 05/30/2023]
Abstract
BACKGROUND/AIMS Only a few studies have investigated aneurismal large-intestinal malignant diseases. The present study reported five cases of aneurismal colon cancer that were experienced over 20 years. The present study aims to define the pathological and diagnostic imaging characteristics of aneurismal colon cancer. METHODOLOGY A case series from a retrospective review of large-intestinal malignant tumors at Saga Medical School, Japan. Barium enema was performed in 876 patients with large-intestinal advanced cancer, which included five with aneurismal-type cancer. RESULTS The characteristics of the 5 cases were as follows: (i) pathological findings were poorly differentiated adenocarcinoma without desmoplastic change or mucinous adenocarcinoma; (ii) a typical aneurismal type revealed by barium enema had a low elevated tumor edge without stenosis upon endoscopic examination; (iii) computed tomography showed low attenuation without enhancement of contrast material; and (iv) magnetic resonance imaging indicated high intensity in the T2-weighted images of mucinous adenocarcinoma. CONCLUSION We revealed 5 cases of aneurismal colon cancer, which had characteristic pathological findings and diagnostic imaging, and poor prognosis.
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Kai K, Miyoshi A, Egashira Y, Kubo H, Kitahara K, Isoda H, Mizuta T, Irie H, Noshiro H, Tokunaga O. A case of pelioid type of hepatocellular carcinoma composed of the two different nodules. Kanzo 2011. [DOI: 10.2957/kanzo.52.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Noguchi T, Irie H, Takase Y, Kawashima M, Ootsuka T, Nishihara M, Egashira Y, Nojiri J, Matsushima T, Kudo S. Hemodynamic studies of intracranial dural arteriovenous fistulas using arterial spin-labeling MR imaging. Interv Neuroradiol 2010; 16:409-19. [PMID: 21162771 DOI: 10.1177/159101991001600407] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Accepted: 09/26/2010] [Indexed: 11/17/2022] Open
Abstract
Arterial spin-labeling (ASL) magnetic resonance imaging (MRI) enables non-invasive acquisition of the brain perfusion information in cerebrovascular disease. We investigated hemodynamic changes in intracranial dural arteriovenous fistulas (DAVFs) using ASL-MRI. ASL-MRI by a Q2TIPS sequence on a 3.0-Tesla MRI was performed for three patients with Cognard's IIa+b type of DAVFs before and after treatment. Perfusion images obtained by ASL-MRI (ASL images) before treatment were visually compared with those by single-photon emission computed tomography images (SPECT images). Increasing rates of temporal changes of regional perfusion values in ASL images (ASL values) before and after treatment were also calculated. In all three patients, ASL images before treatment demonstrated high perfusion in regions around the shunting areas, where normal or low perfusion were detected on SPECT images; thus, ASL images might have demonstrated the abundant arterial shunting flow via the fistulas. On days eight to 20 after treatment, ASL values around the shunt areas remained the same or decreased, and those in the regions other than the shunt areas increased in all three patients. This might have been due to a combination of the following: a decrease in shunt flow volume, an amelioration of venous congestion, and a sustained an upward shift in the autoregulation of the brain perfusion pressure. All regional ASL values decreased on days 112 and 120 after treatment in two patients, which possibly reflects a reduction in the upward shift in autoregulation. ASL-MRI might be useful for identifying the hemodynamic behavior of DAVFs before and after treatment.
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Affiliation(s)
- T Noguchi
- Department of Radiology, Faculty of Medicine, Saga University; Nabeshima, Saga, Japan.
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Furukawa K, Kamohara K, Nojiri J, Egashira Y, Okazaki Y, Kudo S, Morita S. Operative Strategy for Descending and Thoracoabdominal Aneurysm Repair With Preoperative Demonstration of the Adamkiewicz Artery. Ann Thorac Surg 2010; 90:1840-6. [DOI: 10.1016/j.athoracsur.2010.07.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 07/14/2010] [Accepted: 07/14/2010] [Indexed: 10/18/2022]
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Matsuura T, Egashira Y, Nishio T, Kohno R, Kameoka S, Ohta R, Matsumura K, Suzuki H, Taniyama T, Toda T, Shimoju T, Sakamoto A, Yamazaki K, Kawashima M, Ogino T, Matsumoto Y, Wada M, Furusawa Y. WE-A-BRA-05: Proton Ultra High Dose-Rate Effect on HSG Cell Survival Curve. Med Phys 2010. [DOI: 10.1118/1.3469326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Egashira Y, Nishio T, Kameoka S, Matsuura T, Uesaka M. SU-GG-T-590: Delta-Functional Multi Segmented Pencil Beam Algorithm for Highly Accurate Proton Dose Calculation in Heterogeneous Body. Med Phys 2010. [DOI: 10.1118/1.3468991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Osumi W, Fujita Y, Hiramatsu M, Kawai M, Sumiyoshi K, Umegaki E, Tokioka S, Yoda Y, Egashira Y, Abe S, Higuchi K, Tanigawa N. Endoscopic submucosal dissection allows less-invasive curative resection for gastric tube cancer after esophagectomy - a case series. Endoscopy 2009; 41:777-80. [PMID: 19746318 DOI: 10.1055/s-0029-1215024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Detection of early gastric tube cancers (GTCs) has increased with more detailed surveillance endoscopy using indigo carmine dye following esophagectomy. This retrospective study clarified the clinicopathological features and application of endoscopic submucosal dissection (ESD) for GTCs. Data collected for eight GTCs treated by ESD included clinical and pathological features and outcomes following ESD. Overall, eight GTCs were identified in seven (6.3 %) of 112 patients who underwent esophagectomy and gastric tube reconstruction. Almost all lesions were macroscopically type 0-IIa with mucosal to submucosal invasion, and seven GTCs were successfully resected en bloc by ESD. Submucosal invasion to > 500 microm was observed in one case with associated delayed perforation that was treated conservatively. No local recurrences of GTCs were observed. Detailed surveillance endoscopy using indigo carmine dye appears useful for diagnosing early-stage GTC. Furthermore ESD represents a feasible alternative to conventional endoscopic mucosal resection as a minimally invasive therapy for early-stage GTC.
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Affiliation(s)
- W Osumi
- Department of General and Gastroenterological Surgery, Osaka Medical College, Osaka 569-8686, Japan
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Irie H, Nojiri J, Kamochi N, Egashira Y, Nishihara M, Mizuguchi M, Kudo S. An Illustrative Review of Solid Pancreatic Masses: Differential Diagnostic Features of CT and MRI Findings. Curr Med Imaging 2009. [DOI: 10.2174/157340509789000660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Arimura H, Egashira Y, Shioyama Y, Nakamura K, Yoshidome S, Anai S, Nomoto S, Honda H, Toyofuku F, Higashida Y, Onizuka Y, Terashima H. Computerized method for estimation of the location of a lung tumor on EPID cine images without implanted markers in stereotactic body radiotherapy. Phys Med Biol 2009; 54:665-77. [DOI: 10.1088/0031-9155/54/3/013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Fujita Y, Hiramatsu M, Kawai M, Tashiro K, Umegaki E, Tokioka S, Egashira Y, Higuchi K, Tanigawa N. Successful treatment for hypopharyngeal cancer in a patient with superficial esophageal cancer by endoscopic submucosal dissection. Endoscopy 2008; 40 Suppl 2:E189-90. [PMID: 18709610 DOI: 10.1055/s-2007-995570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Y Fujita
- Department of General and Gastroenterological Surgery, Osaka Medical College, Osaka, Japan
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Arimura H, Egashira Y, Shioyama Y, Nakamura K, Yoshidome S, Shigeo A, Nomoto S, Honda H, Higashida Y, Onizuka Y, Terashima H. SU-GG-J-41: Automated Estimation of a Tumor Region and Its Displacement On EPID Cine Images Without Implanted Markers in Lung Stereotactic Body Radiotherapy. Med Phys 2008. [DOI: 10.1118/1.2961599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Maemura K, Yanagawa Y, Obata K, Dohi T, Egashira Y, Shibayama Y, Watanabe M. Antigen-presenting cells expressing glutamate decarboxylase 67 were identified as epithelial cells in glutamate decarboxylase 67-GFP knock-in mouse thymus. ACTA ACUST UNITED AC 2006; 67:198-206. [PMID: 16573556 DOI: 10.1111/j.1399-0039.2006.00548.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Glutamate decarboxylase (GAD), which has two isoforms, GAD65, and GAD67, is responsible for synthesis of the major inhibitory neurotransmitter, gamma-aminobutyric acid. GAD is expressed predominantly in the central nervous system; recent reports suggest that GAD is also expressed in non-neuronal organs including the pancreas. In the pancreatic islets, GAD serves as one of the autoantigens in type I diabetes mellitus. Recent flow cytometric analyses have shown that a variety of self-antigens, including GAD, are ectopically transcribed and expressed in particular cell populations of the thymus, although consensus concerning the cellular phenotype has not been obtained. The aim of this study was to clarify the localization and cellular phenotype of GAD67-expressing cells in the thymus at a cellular level with a novel approach using GAD67-green fluorescent protein (GFP) knock-in mice, in which GFP is expressed specifically in GAD67-positive cells. GFP-positive cells were detected in the thymic medulla and were identified as epithelial cells by immunohistochemistry. Almost all GFP-positive cells were positive for major histocompatibility complex (MHC) class II antigen staining and were positive for both cytokeratin and Ulex Europaeus Agglutinin I, markers of medullary thymic epithelial cells, but were negative for CD11c, Gr-1, and CD45, markers of dendritic cells, macrophages, and B-lymphocytes, respectively.
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Affiliation(s)
- K Maemura
- Department of Anatomy, Osaka Medical College, Japan
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33
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Egashira Y, Yoshida T, Hirata I, Hamamoto N, Akutagawa H, Takeshita A, Noda N, Kurisu Y, Shibayama Y. Analysis of pathological risk factors for lymph node metastasis of submucosal invasive colon cancer. Mod Pathol 2004; 17:503-11. [PMID: 15001992 DOI: 10.1038/modpathol.3800030] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
There are currently no universally accepted indications and criteria for additional surgical resection of the colorectum after endoscopic resection of the submucosal invasive cancer. The purpose of the present study is to establish accurate indications and criteria for additional surgical resection of the colorectum, based on the prediction of lymph node metastasis, after endoscopic resection of the submucosal invasive cancer. We investigated 140 submucosal invasive colorectal cancers and analyzed the pathologic factors of lymph node metastasis. The tumors were evaluated for pathologic factors in the invasive area of the submucosal carcinoma and were compared between the cases with lymph node metastasis and those without lymph node metastasis. Lymph node metastasis was observed in 13 cases (9%). Univariate logistic regression analysis showed that the depth of invasion, cribriform-type structural atypia, absence of lymphoid infiltration, lymphatic permeation, and venous permeation were statistically significant as risk factors for lymph node metastasis. Multivariate logistic regression analysis showed that the important risk factors included, in decreasing order, lymphatic permeation, absence of lymphoid infiltration, cribriform-type structural atypia, venous permeation, and depth of invasion. Submucosal invasion of 2 mm or more, and/or, depth of lymphatic permeation of 2 mm or more are risk factors for lymph node metastasis. The pathologic criteria based on our results for additional colectomy enables greater accuracy selection of patients who will undergo further surgical treatment after endoscopic resection.
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Affiliation(s)
- Y Egashira
- Department of Pathology, Osaka Medical College, Takatsuki city, Osaka, Japan.
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34
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Hashimoto K, Nakagawa Y, Morikawa H, Niki M, Egashira Y, Hirata I, Katsu K, Akao Y. Co-overexpression of DEAD box protein rck/p54 and c-myc protein in human colorectal adenomas and the relevance of their expression in cultured cell lines. Carcinogenesis 2001; 22:1965-70. [PMID: 11751426 DOI: 10.1093/carcin/22.12.1965] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The RCK gene was cloned through a study of the breakpoint of the t(11;14)(q23;q32) chromosomal translocation observed in a human B-cell lymphoma and overexpression of the protein (rck/p54) due to the translocation was shown to be associated with malignant transformation. The rck/p54 protein belongs to the DEAD box protein/RNA helicase family, which has a variety of functions such as translation initiation, pre-mRNA splicing and ribosome assembly. It is considered that rck/p54 protein may have significant effects on the mRNA structure of genes associated with cell proliferation, facilitating protein synthesis. Expression of rck/p54 in colorectal adenomas, which are a premalignant lesion of colorectal cancer, was examined by Western blot analysis and immunohistochemistry. The rck/p54 protein was found to be overexpressed in tumor tissues resected from 17 of 26 cases (65.4%) of colorectal adenomas and 13 of 14 c-myc-positive cases (92.8%) also co-overexpressed rck/p54 protein. Thus, a significant correlation between rck/p54 and c-myc co-overexpression was found (Spearman's rank correlation, P = 0.0018). We demonstrate that overexpression of rck/p54 in two different cell lines, COS 7 and human colorectal cancer cell line SW480, caused an increase in c-myc protein levels by enhancement of its translation efficiency and/or stabilization of its mRNA. These results suggest that rck/p54 of the DEAD box protein/RNA helicase family may contribute to cell proliferation and carcinogenesis in the development of human colorectal tumors at the translational level by increasing synthesis of c-myc protein.
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Affiliation(s)
- K Hashimoto
- Second Department of Internal Medicine, Osaka Medical College, Daigaku-cho, Takatuki, Osaka 569-8686, Japan
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35
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Nishiyama N, Miyamoto M, Egashira Y, Ueyama K. Zeolite membrane on catalyst particles for selective formation of p-xylene in the disproportionation of toluene. Chem Commun (Camb) 2001:1746-7. [PMID: 12240295 DOI: 10.1039/b105256j] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective formation of p-xylene is shown in toluene disproportionation using a new catalyst which is surrounded with a permselective membrane.
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Affiliation(s)
- N Nishiyama
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
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36
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Yamauchi H, Hirata I, Sasaki S, Egashira Y, Hamamoto N, Murano M, Toshina K, Ueda S, Maemura K, Katsu K. Ileal carcinoid tumor with a rose-shaped appearance by dye spraying: diagnosis at colonoscopy. Gastrointest Endosc 2001; 54:267-8. [PMID: 11474412 DOI: 10.1067/mge.2001.116325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- H Yamauchi
- Second Department of Internal Medicine, the First Department of Pathology, and the Second Department of Anatomy, Osaka Medical College, Takatsuki City, Osaka, Japan
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37
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Morikawa H, Nakagawa Y, Hashimoto K, Niki M, Egashira Y, Hirata I, Katsu K, Akao Y. Frequent altered expression of fragile histidine triad protein in human colorectal adenomas. Biochem Biophys Res Commun 2000; 278:205-10. [PMID: 11071873 DOI: 10.1006/bbrc.2000.3771] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fragile histidine triad (FHIT) gene is involved in deletions on the short arm of chromosome 3 in various human cancers. We found that 47% of colorectal adenomas, which is a higher frequency than that of K-ras, showed altered expression of the Fhit protein by Western blot analysis. The amount of Fhit protein was inversely correlated with the degree of dysplasia. Importantly, 27% of low-grade dysplastic adenomas showed altered expression of Fhit protein. Additionally, expression of human Fhit protein in human colon carcinoma cell line SW480 exhibited a marked inhibition of growth and rendered SW480 cells highly susceptible to undergo apoptosis compared with control cells. These findings suggest that altered expression of the FHIT gene is a quite early aberration in the development of colorectal tumors and that Fhit protein may act as a tumor suppressor.
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Affiliation(s)
- H Morikawa
- Second Department of Internal Medicine, Osaka Medical College, Daigaku-cho, Takatsuki, Osaka 569-8686, Japan
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38
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Egashira Y. [Conception and evaluation method of QOL (quality of life) in allergic diseases--mainly on bronchial asthma]. Arerugi 2000; 49:553-7. [PMID: 10944820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Affiliation(s)
- Y Egashira
- Kyusyu University of Nursing and Social Welfare/Department of Nursing
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Takiuchi H, Hirata I, Kawabe S, Egashira Y, Katsu K. Immunohistochemical expression of vascular endothelial growth factor can predict response to 5-fluorouracil and cisplatin in patients with gastric adenocarcinoma. Oncol Rep 2000; 7:841-6. [PMID: 10854555 DOI: 10.3892/or.7.4.841] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The combination of 5-fluorouracil (5-FU) and cisplatin is used most commonly for gastric carcinoma. Recent studies have indicated that vascular endothelial growth factor (VEGF) is related to drug delivery through angiogenesis and vascular permeability. In this study, we evaluated the efficacy and toxicity of continuous infusion of 5-FU and low dose cisplatin infusion as first-line treatment in patients with unresectable gastric adenocarcinoma. We also examined the relationship between chemotherapy response and immunohistochemical expression of VEGF in the biopsy samples of gastric primary. All 30 patients enrolled in this study were assessable for response, adverse reactions, and VEGF expression. The regimen consisted of 5-FU (350 mg/m2/day every day by continuous venous infusion) and low dose cisplatin (7 mg/m2/day by drip infusion over 1 h on days 1-5 every week). This treatment was repeated weekly for 3 consecutive weeks. Four weeks after the second cycle, mesurable lesions were estimated for response. An overall response rate was 46.7% (14/30). Patients with intestinal histologic type (10/12) and good performance status ([PS], 13/18) showed good response rate (83.3%, and 72.2%, respectively) compared to patients with diffuse histologic type (4/18) and poor PS [(1/12) 22.2%, and 8. 3%, respectively]. The response rate of VEGF-positive cases and VEGF-negative cases was 75% (12/16), and 16.7% (2/14), respectively. Multivarite analysis revealed that VEGF-positive and good PS had a significant impact on chemotherapy response in this treatment. The most common garde 3 or higher toxicities were myelosuppression (30%) and diarrhea (13.3%). Continuous infusion of 5-FU and low dose cisplatin infusion is an effective treatment for patients with unresectable gastric carcinoma, and VEGF expression may be a useful predictor of chemotherapy response in this regimen.
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Affiliation(s)
- H Takiuchi
- Second Department of Internal Medicine, Osaka Medical College, Osaka 569-8686, Japan
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40
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Fukuoka S, Tanabe A, Egashira Y, Sanada H, Shin M, Shibata K. Identification of cDNAs encoding alpha-amino-beta-carboxymuconate-epsilon-semialdehyde decarboxylase (ACMSDase). Adv Exp Med Biol 2000; 467:615-8. [PMID: 10721108] [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: 02/15/2023]
Abstract
To elucidate the molecular basis underlying quinolinate metabolism, the cDNA encoding ACMSDase was cloned.
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Affiliation(s)
- S Fukuoka
- Research Institute for Food Science, Kyoto University, Japan.
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41
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Egashira Y, Isagawa A, Komine T, Yamada E, Ohta T, Shibata K, Sanada H. Tryptophan-niacin metabolism in liver cirrhosis rat caused by carbon tetrachloride. J Nutr Sci Vitaminol (Tokyo) 1999; 45:459-69. [PMID: 10575636 DOI: 10.3177/jnsv.45.459] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We investigated the change of tryptophan-niacin metabolism induced by carbon tetrachloride (CCl4) in rats with liver cirrhosis. The rats were injected with CCl4 (0.5 or 1 mL of 50% olive oil solution/kg body weight) twice a week for 1 or 2 mo and given phenobarbital water simultaneously. The urinary excretions of nicotinamide (Nam) and its metabolites were assayed. As the result, the urinary excretion of Nam, N1-methyl-4-pyridone-3-carboxamide (4-Py), Nam + N1-methylnicotinamide (MNA) + N1-methyl-2-pyridone-5-carboxamide (2-Py) + 4-Py was lower in the CCl4-treated groups than in the non-treated group (control) regardless of the experimental period (1 mo and 2 mo) or dosing amount of CCl4 (0.5 and 1 mL). Moreover, we investigated which pathway of tryptophan-niacin metabolism was affected in CCl4-treated rat. As the result, the possibility that the MNA-->4-Py reaction is inhibited by CCl4 treatment was suggested in this experiment.
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Affiliation(s)
- Y Egashira
- Department of Bioproduction Science, Faculty of Horticulture, Chiba University, Matsudo, Japan.
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42
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Fukunishi K, Kurokawa T, Takeshita A, Nariyama K, Egashira Y, Shibayama Y, Kamei K, Oue T, Hashimoto S, Fukuda Y, Min KY, Ohsawa N. [Acute myelocytic leukemia and plasmacytoma secondary to chemotherapy and radiotherapy in a long-term survivor of small cell lung cancer]. Nihon Kokyuki Gakkai Zasshi 1999; 37:415-9. [PMID: 10410546] [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: 04/13/2023]
Abstract
A 68-year-old man was given a diagnosis of lung cancer of the right upper lobe (small cell carcinoma, T 4 N 2 M 0, stage IIIB) in February 1991. The tumor diminished after chemotherapy and radiotherapy. In February 1992, a partial resection of the lower lobe of the right lung was performed because of the appearance of a metastatic tumor. In September 1994, squamous cell carcinoma developed in the lower part of the esophagus, but disappeared after radiotherapy. In February 1998, a diagnosis of myelodysplastic syndrome was made. Two months later, the patient had an attack of acute myelocytic leukemia and died of cardiac tamponade. An autopsy determined that both the lung cancer and esophageal cancer had disappeared. Acute myelocytic leukemia and plasmacytoma of lymph nodes in the irradiated area were confirmed. These were regarded as secondary malignancies induced by chemotherapy and radiotherapy.
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Affiliation(s)
- K Fukunishi
- Department of Pathology, Osaka Medical College, Japan
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43
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Gotoh M, Takiuchi H, Hirata I, Iyama M, Inoue R, Itabashi T, Egashira Y, Inoue T, Kurisu Y, Tanaka M, Shimamoto C, Katsu K. [A case of gastric carcinoma treated effectively with 5'-DFUR]. Gan To Kagaku Ryoho 1999; 26:837-9. [PMID: 10410155] [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: 02/13/2023]
Abstract
A 79-year-old male was admitted to our hospital for further examination on gastric carcinoma (1' type) in the cardia. The histology of biopsied tissue was moderately differentiated adenocarcinoma (tub2). The patient refused a gastrectomy and received three cycles of local injection therapy with OK-432 + Beriplast into the tumor. However, the tumor showed no decrease in size. Considering the quality of life, the patient was given out patient treatment with 5'-DFUR (Furtulon, 800 mg/day). Three months later, the patient showed a partial response (PR) on the basis of gastric X-ray and endoscopic findings. No adverse reactions to the drug were seen. The patient has been receiving the same drug since then, and has continued to show PR for 15 months. Biopsied tissues were checked immunohistochemically for expression of thymidine phosphorylase (TdRPase), and changes in tissue TdRPase level were examined by ELISA. The TdRPase level decreased with shrinking of the tumor. These results suggest that the shrinking of tumor following 5'-DFUR therapy is closely related to TdRPase.
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Affiliation(s)
- M Gotoh
- Division of Internal Medicine, Hokusetsu General Hospital
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44
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Wang B, Ishihara M, Egashira Y, Ohta T, Sanada H. Effects of various kinds of dietary amino acids on the hepatotoxic action of D-galactosamine in rats. Biosci Biotechnol Biochem 1999; 63:319-22. [PMID: 10192913 DOI: 10.1271/bbb.63.319] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The protective effects of various kinds of dietary amino acids against the hepatotoxic action of D-galactosamine (GalN) were examined. Male Wistar rats fed with 20% casein diets containing 10% or 5% amino acid for one week were injected with GalN (800 mg/kg body weight), and the serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH) activities, the hepatic glycogen concentration, and the serum glucose-level were examined 20 hours after the injection. In the groups with the 10% amino acid diets, activities of AST, ALT, and LDH in serum of 10% L-glutamine (Gln), 10% L-asparagine (Asn), and 10% L-serine (Ser) groups were significantly lower than those of the control group, and in the groups with the 5% amino acid diets, those activities of 5% L-histidine (His), 5% L-tyrosine (Tyr), 5% L-lysine (Lys), and 5% L-glycine (Gly) groups were also lower than those of the control group. The concentration of liver glycogen of 10% Gln-, 10% Asn-, and 10% Ser- groups and those levels of 5% His-, 5% Tyr-, 5% Lys-, and 5% Gly-groups were also significantly higher than that of the control group. As a result, it was found that some kinds of dietary amino acid such as L-Ser, L-Asn, L-His, L-Lys, L-Tyr, and L-Gly, in addition to L-Gln were effective to protect the rats from GalN-induced injury.
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Affiliation(s)
- B Wang
- Graduate School of Science and Technology, Chiba University, Japan
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45
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Abstract
Fifty-six surgically resected intramucosal differentiated adenocarcinomas (DA) of the stomach with a maximum diameter of less than 5 mm were analyzed by mucin histochemistry. Gastric type phenotypic expression was observed in 41.1% of cases, intestinal type in 28.6% and gastric-intestinal type in 28.6% of all cancers. Gastric type phenotypic expression was the most frequent. As the tumor diameter increased, the incidence of DA with gastric phenotype tended to decrease. Intestinal metaplasia of the cancer's surrounding mucosa was absent or slight in DA with gastric phenotype, but moderate to severe in DA with gastric-intestinal phenotype and intestinal phenotype. Morphologically and mucin histochemically, intestinal metaplasia surrounding DA with gastric phenotype was immature and incomplete compared with DA with gastric-intestinal phenotype or intestinal phenotype. It is suggested that a large amount of DA with gastric phenotype is histogenetically derived from the gastric gland proper without intestinal metaplasia. However, as the tumor grows and intestinal metaplasia progresses, intestinal type phenotypic expression appears and then DA with gastric phenotype changes into DA with gastric-intestinal phenotype or intestinal phenotype.
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Affiliation(s)
- Y Egashira
- First Department of Pathology, Osaka Medical College, Takatsuki City, Japan
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46
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Wang B, Egashira Y, Ohta T, Sanada H. Effect of indigestible oligosaccharides on the hepatotoxic action of D-galactosamine in rats. Biosci Biotechnol Biochem 1998; 62:1504-9. [PMID: 9757556 DOI: 10.1271/bbb.62.1504] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The effects of dietary oligosaccharides on the hepatotoxic action of D-galactosamine (GalN) were investigated in this study. Male Wistar rats fed with 20% casein diets containing 10% oligosaccharide or D-galactose (Gal) for 2 weeks were injected with GalN (1,900 mg/kg of body weight), and the plasma aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities and the hepatic glycogen concentration were examined 20 hours after the injection. The plasma AST and ALT activities in experiment 1 for the Gal + neomycin (NEO) group were significantly lower than those for the control (C), NEO, raffinose (RAF) + NEO and galacto-oligosaccharide (GA-LO) + NEO groups. In experiment 2, these activities were significantly lower in the Gal, Gal + NEO and RAF groups than in the RAF + NEO group when the groups were treated with GalN. On the other hand, in respect of the hepatic glycogen concentration in experiment 1, that of the Gal + NEO group was higher than that of the C, NEO, RAF + NEO or GALO + NEO groups. In experiment 2, this parameter was significantly higher in the Gal, Gal + NEO and RAF groups than in the RAF + NEO group after the GalN treatment. As a result, it is suggested that the GalN-hepatitis-suppressive effects of indigestible oligosaccharides such as RAF or GALO is mediated by the action of intestinal bacteria.
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Affiliation(s)
- B Wang
- Graduate School of Science and Technology, Chiba University, Japan
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47
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Sohda T, Iwata Y, Shijo H, Egashira Y, Egashira K, Okumura M. Increased expression of proliferating cell nuclear antigen in autoimmune hepatitis in a patient with raised serum concentration of CA19-9. J Clin Pathol 1998; 51:167-9. [PMID: 9602695 PMCID: PMC500516 DOI: 10.1136/jcp.51.2.167] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A 52 year old woman had autoimmune hepatitis and an increased concentration of serum carbohydrate antigen 19-9 (CA19-9). The origin of the raised CA19-9 was studied using immunohistochemistry. Liver biopsy section showed chronic active hepatitis with large numbers of proliferated bile ductules. Immunohistochemical analysis revealed that the proliferated bile ductule cells were positive for proliferating cell nuclear antigen (PCNA) and for CA19-9. It is speculated that the raised serum CA19-9 concentration was derived from proliferated bile ductule cells and these cells, which are positive for PCNA, may be able to produce high concentrations of CA19-9.
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Affiliation(s)
- T Sohda
- First Department of Internal Medicine, School of Medicine, Fukuoka University, Japan.
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48
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Egashira Y, Tanabe A, Ohta T, Sanada H. Dietary linoleic acid alters alpha-amino-beta-carboxymuconate-epsilon-semialdehyde decarboxylase (ACMSD), a key enzyme of niacin synthesis from tryptophan, in the process of protein expression in rat liver. J Nutr Sci Vitaminol (Tokyo) 1998; 44:129-34. [PMID: 9591240 DOI: 10.3177/jnsv.44.129] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
alpha-Amino-beta-carboxymuconate-epsilon-semialdehyde decarboxylase (ACMSD) [EC 4.1.1.45] is a key enzyme of niacin synthesis from tryptophan. In this study, we examined whether dietary linoleic acid alters the protein expression of ACMSD in rat liver. Antibody against rat liver ACMSD was prepared by injecting mice with the purified enzyme. With the use of this polyclonal antibody and analysis by two-dimensional electrophoresis, we studied the mechanism by which the level of liver ACMSD activity was varied in rats fed a linoleic acid diet. In the rats fed a dietary linoleic acid (L), ACMSD protein levels in the liver were strongly suppressed as compared with the rats fed a fat-free diet (FF). These results suggest that the expression level of ACMSD might be modulated by linoleic acid or their metabolites.
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Affiliation(s)
- Y Egashira
- Department of Bioproduction Science, Faculty of Horticulture, Chiba University, Matsudo, Japan
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49
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Abstract
Antioxidant activity of ferulic acid beta-glucuronide, which is prepared from the plasma of feruloyl arabinose fed rats, in the CuSO4- induced LDL autoxidation system was studied. It has been found that absorbed ferulic acid occurred as the beta-glucuronide and that the antioxidant activity of ferulic acid beta-glucuronide, which has not only the hydrophobic ferulic acid moiety but also a hydrophilic sugar moiety, is stronger than ferulic acid in the LDL oxidation system.
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Affiliation(s)
- T Ohta
- Department of Bioproduction Science, Faculty of Horticulture, Chiba University, Japan
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50
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Affiliation(s)
- K Ashida
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
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