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Hayama M, Maeda Y, Obata S, Tsuda T, Takeda K, Nishida T, Inohara H. Understanding hereditary hemorrhagic telangiectasia: From genetic anomalies to systemic manifestations, quality of life, and epistaxis management-Exploring the otolaryngologist's integral role. Auris Nasus Larynx 2024; 51:305-312. [PMID: 38008660 DOI: 10.1016/j.anl.2023.11.002] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/19/2023] [Accepted: 11/07/2023] [Indexed: 11/28/2023]
Abstract
Hereditary hemorrhagic telangiectasia (HHT), also known as Osler-Rendu-Weber syndrome, is a rare autosomal dominant disorder characterized by vascular malformations. This comprehensive review aimed to provide an overview and summarize various aspects of HHT, including the genetic abnormalities, complications associated with visceral arteriovenous malformations (AVMs), prognosis of HHT, quality of life (QOL), and treatment of epistaxis. In addition, this review highlights the challenges in diagnosing HHT and emphasizes the critical role of otolaryngologists in the early detection of HHT. Otolaryngologists can refer patients with refractory epistaxis for AVM screening to expedite intervention. Mutation of the genes involved in the transforming growth factor-β signaling pathway leads to the incidence of HHT, resulting in the formation of abnormal blood vessel formation. These vascular malformations commonly manifest as telangiectasia on the skin and mucous membranes; however, epistaxis remains the hallmark symptom of HHT. The impact of HHT goes beyond the visible symptoms and often includes the formation of life-threatening visceral AVMs in the lungs, liver, and brain. The prognosis of patients with HHT is closely related to the development of these complications, necessitating timely diagnosis and intervention. Refractory epistaxis diminishes the QOL of patients with HHT. The management of epistaxis ranges from conservative measures to advanced interventions such as prevention, conservative treatments, ablation, surgical procedures, and the administration of anti-angiogenic agents. However, effective management requires a multidisciplinary approach. The diagnosis of HHT remains challenging due to its variable presentation and lack of awareness among physicians. This review highlights the importance of reducing the duration between symptom onset and diagnosis. Otolaryngologists who are experienced in the management of refractory epistaxis can aid in identifying potential cases of HHT. They can facilitate the initiation of screening for visceral AVMs via prompt recognition of the signs and symptoms of HHT, contributing to improved patient outcomes. Early detection and intervention through screening can extend the life expectancy of patients with HHT to levels comparable with that of the general population. In conclusion, this review provides insight into various aspects of HHT and emphasizes the importance of timely diagnosis and intervention in the mitigation of the potentially life-threatening complications associated with this disorder. Otolaryngologists play a critical role in this process, serving as gatekeepers to the identification of cases of HHT and implementation of appropriate screening and management pathways, thereby improving the life expectancy and QOL of patients.
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Affiliation(s)
- Masaki Hayama
- Department of Otorhinolaryngology, Hyogo Prefectural Nishinomiya Hospital, Nishinomiya City, Hyogo, Japan; Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Department of Otorhinolaryngology, Japan Community Healthcare Organization Osaka Hospital, Osaka City, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takeo Nishida
- Department of Neurosurgery, Hyogo Prefectural Nishinomiya Hospital, Nishinomiya City, Hyogo, Japan; Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
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Tamura K, Tsuda T, Takeda K, Obata S, Kurashige M, Morii E, Inohara H. A Rare Case of Pseudo-Malignant Paranasal Extranodal Rosai-Dorfman Disease. Ear Nose Throat J 2023:1455613231195422. [PMID: 37632336 DOI: 10.1177/01455613231195422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2023] Open
Abstract
Rosai-Dorfman disease is a very rare disease characterized by histiocytic accumulation in the head and neck region and lymph node enlargement. We report a rare pseudo-malignant paranasal extranodal Rosai-Dorfman disease. A 69-year-old-man presented nasal bleeding and nasal obstruction. Paranasal mass was detected in the left nasal cavity and computed tomography (CT) findings are the sphenoid sinus, maxillary sinus, and ethmoid sinus were involved with inconstant bone thickening, however, no bone destruction was detected. Magnetic resonance imaging scans show iso-intensity signal in T1-weighed image and T2-weighed image. Positron emission tomography/CT fluorodeoxyglucose (FDG) uptake in posterior ethmoid sinus and sphenoid sinus, bilateral cervical lymph node, clavicle, and sternum. Based on the above results, we considered malignant lymphoma and performed a biopsy. After pathological examination, a diagnosis of Rosai-Dorfman disease was established.
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Affiliation(s)
- Koichi Tamura
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Masako Kurashige
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
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Saito M, Tsuda T, Takeda K, Obata S, Umeda D, Hayama M, Morii E, Inohara H. Paranasal Schwannomas: A Comprehensive Study of 2 Cases. Ear Nose Throat J 2023:1455613231195421. [PMID: 37632333 DOI: 10.1177/01455613231195421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2023] Open
Abstract
Paranasal sinus tumors are a heterogeneous group of neoplasms (with paranasal schwannomas being a rare subtype) that are often present with non-specific symptoms, such as nasal obstruction and epistaxis. Thus, early diagnosis is crucial for optimal management. This study presents 2 cases of paranasal schwannomas, detailing their clinical presentation, diagnostic methods, and treatment approaches. Both patients underwent endoscopic sinus surgery with successful tumor excision and had no significant complications or recurrences during follow-up. Diagnosis was based on a combination of clinical examination, radiological imaging (computed tomography and magnetic resonance imaging), and histopathological confirmation with immunohistochemical staining. Treatment consisted primarily of endonasal resection, with consideration of frontal craniotomy if necessary. This study aims to contribute to the understanding of paranasal schwannomas and emphasizes the importance of early detection and treatment to improve patient outcomes.
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Affiliation(s)
- Miyu Saito
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Daisuke Umeda
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
- Department of Otorhinolaryngology, Hyogo Prefectural Nishinomiya Hospital, Nishinomiya City, Hyogo, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
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Lelliott PM, Hobro AJ, Pavillon N, Nishide M, Okita Y, Mizuno Y, Obata S, Nameki S, Yoshimura H, Kumanogoh A, Smith NI. Single-cell Raman microscopy with machine learning highlights distinct biochemical features of neutrophil extracellular traps and necrosis. Sci Rep 2023; 13:10093. [PMID: 37344494 DOI: 10.1038/s41598-023-36667-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/07/2023] [Indexed: 06/23/2023] Open
Abstract
The defining biology that distinguishes neutrophil extracellular traps (NETs) from other forms of cell death is unresolved, and techniques which unambiguously identify NETs remain elusive. Raman scattering measurement provides a holistic overview of cell molecular composition based on characteristic bond vibrations in components such as lipids and proteins. We collected Raman spectra from NETs and freeze/thaw necrotic cells using a custom built high-throughput platform which is able to rapidly measure spectra from single cells. Principal component analysis of Raman spectra from NETs clearly distinguished them from necrotic cells despite their similar morphology, demonstrating their fundamental molecular differences. In contrast, classical techniques used for NET analysis, immunofluorescence microscopy, extracellular DNA, and ELISA, could not differentiate these cells. Additionally, machine learning analysis of Raman spectra indicated subtle differences in lipopolysaccharide (LPS)-induced as opposed to phorbol myristate acetate (PMA)-induced NETs, demonstrating the molecular composition of NETs varies depending on the stimulant used. This study demonstrates the benefits of Raman microscopy in discriminating NETs from other types of cell death and by their pathway of induction.
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Affiliation(s)
- Patrick Michael Lelliott
- Laboratory of Biophotonics, Immunology Frontier Research Center, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan.
| | - Alison Jane Hobro
- Laboratory of Biophotonics, Immunology Frontier Research Center, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan
| | - Nicolas Pavillon
- Laboratory of Biophotonics, Immunology Frontier Research Center, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan
| | - Masayuki Nishide
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasutaka Okita
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yumiko Mizuno
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sho Obata
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinichiro Nameki
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hanako Yoshimura
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
- Laboratory of Immunopathology, Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Open and Transdisciplinary Research Institute (OTRI), Osaka University, Osaka, Japan
| | - Nicholas Isaac Smith
- Laboratory of Biophotonics, Immunology Frontier Research Center, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan.
- Open and Transdisciplinary Research Institute (OTRI), Osaka University, Osaka, Japan.
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Nakatani A, Tsuda T, Maeda Y, Hayama M, Okuzaki D, Obata S, Kishikawa T, Takeda K, Inohara H. S100A8 enhances IL-1β production from nasal epithelial cells in eosinophilic chronic rhinosinusitis. Allergol Int 2023; 72:143-150. [PMID: 36117020 DOI: 10.1016/j.alit.2022.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 01/26/2022] [Revised: 07/03/2022] [Accepted: 08/08/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Chronic rhinosinusitis is classified into eosinophilic chronic rhinosinusitis (ECRS) and non-eosinophilic chronic rhinosinusitis (NECRS). ECRS is a refractory allergic disease involving a variety of immune and epithelial cells. S100A8 is a damage-associated molecular pattern that is closely related to allergic inflammation. However, the pathological implications of S100A8 in ECRS have not been clarified. METHODS We evaluated the role of S100A8 in the pathogenesis of ECRS. Gene expression profiles of nasal polyps obtained from patients with ECRS or NECRS were evaluated using RNA sequencing. RESULTS S100A8 was identified as a significantly upregulated gene in nasal polyps associated with ECRS. Immunohistochemistry consistently revealed intense S100A8 staining in nasal polyps from patients with ECRS. Human nasal epithelial cells expressed the receptor for advanced glycation end products and Toll-like receptor 4. Recombinant S100A8 protein induced interleukin-1β secretion in human nasal epithelial cells. CONCLUSIONS Our data demonstrate that S100A8 results in production of interleukin-1β in the nasal epithelium, which may be involved in the pathogenesis of ECRS.
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Affiliation(s)
- Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan; Department of Otorhinolaryngology, Osaka National Hospital, Osaka, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Toshihiro Kishikawa
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan; Department of Otolaryngology, Kindai University, Faculty of Medicine, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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Kawasaki H, Masuda K, Isayama J, Aoto Y, Obata S, Fukushima-Nomura A, Ito Y, Tanase K, Kawakami E, Amagai M. 077 The thirteen bacterial species inversely correlated with disease activities of atopic dermatitis in human showed a biotherapeutic potential based on their suppressive effects in mice. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.087] [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: 11/19/2022]
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Sudo T, Tsuda T, Hayama M, Takeda K, Obata S, Nakatani A, Amano Y, Fujii S, Fukata H, Inohara H. Co-Treatment with Steroid and Dupilumab for Eosinophilic Chronic Rhinosinusitis after Eosinophilic Pneumonitis Caused by Dupilumab. Ear Nose Throat J 2022:1455613221115043. [PMID: 35822843 DOI: 10.1177/01455613221115043] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Eosinophilic chronic rhinosinusitis (ECRS) is a Type 2 inflammatory disease that manifests as chronic inflammation of the paranasal sinus. IL-4/IL-13 receptor monoclonal antibodies (dupilumab) to suppress Type 2 inflammation have become a good treatment option for patients who are refractory to surgery. Most patients respond normally, although significant side effects such as eosinophilic pneumonia may occur, requiring discontinuation of dupilumab. Here, we present a case in which dupilumab administration caused a side-effect of eosinophilic pneumonia. A 65-year-old woman presented with nasal obstruction and olfactory dysfunction due to a nasal polyp. Her symptoms temporarily improved with dupilumab; however, dupilumab was discontinued due to eosinophilic pneumonia. Discontinuation of dupilumab resulted in the rapid resolution of eosinophilic pneumonia and reappearance of nasal polyps. We, therefore, resumed dupilumab treatment in combination with low-dose steroids; eosinophilic pneumonia did not flare up, and the nasal polyps shrank steadily. There is no established treatment strategy in cases where a side effect of eosinophilic pneumonia arises while treating ECRS with dupilumab. Based on the described case, we recommend that a combination of a low-dose steroids and dupilumab be considered as a treatment option to counter the side-effect of eosinophilic pneumonia induced by dupilumab alone.
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Affiliation(s)
- Takato Sudo
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
- Department of Otorhinolaryngology, Hyogo Prefectural Nishinomiya Hospital, Nishinomiya City, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Yuta Amano
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Soichiro Fujii
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Hiroko Fukata
- Department of Respiratory Medicine, Takatsuki Red Cross Hospital, Takatsuki City, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
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Tanida M, Hayama M, Maeda Y, Obata S, Nakatani A, Amano Y, Inohara H. Organized Hematoma after Intra-Arterial Chemoradiotherapy for Maxillary Sinus Cancer: A Case Report. Ear Nose Throat J 2022:1455613221091099. [PMID: 35392701 DOI: 10.1177/01455613221091099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An organized hematoma (OH) is a relatively rare benign lesion of the paranasal sinuses. Traditionally, it has been reported to occur following trauma, surgery, and sinus hemorrhagic lesions and in various bleeding predispositions. OHs are sometimes difficult to differentiate from malignancy because of the similar clinical symptoms and bone destruction. It is especially difficult when OHs occur in the same location as the primary tumor after treatment of a malignant tumor. In this paper, we report two cases of OH that occurred after intra-arterial chemoradiotherapy (IACRT) for maxillary sinus cancer. In one case, FDG accumulation was found in PET/CT and suspected to be a cancer recurrence. However, the postoperative pathology showed no malignant findings. This suggests that OH may show accumulation on 18 F-fluorodeoxyglucose positron emission tomography (FDG-PET). In both cases, bleeding from the maxillary sinus continued after surgery. In one case, recurrence was observed, and in the other, nasal irrigation prevented the pooling of blood in the maxillary sinus, and no recurrence was observed. These cases suggest that OH after IACRT may easily recur because the bleeding continues even after surgery. In such cases, nasal irrigation or preoperative embolization may be helpful to avoid recurrence.
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Affiliation(s)
- Masashi Tanida
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
- Otorhinolaryngology-Head & Neck Surgery, 13798Osaka General Medical Center, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Yuta Amano
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Japan
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Lelliott PM, Nishide M, Pavillon N, Okita Y, Shibahara T, Mizuno Y, Yoshimura H, Obata S, Kumanogoh A, Smith NI. Cellular Adhesion Is a Controlling Factor in Neutrophil Extracellular Trap Formation Induced by Anti-Neutrophil Cytoplasmic Antibodies. Immunohorizons 2022; 6:170-183. [DOI: 10.4049/immunohorizons.2200012] [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] [Received: 01/31/2022] [Accepted: 01/31/2022] [Indexed: 11/19/2022] Open
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Hayama M, Maeda Y, Shikina T, Tatehara S, Inokuchi G, Hoag JB, Sato T, Obata S, Nakatani A, Amano Y, Hida E, Nibu KI, Inohara H. Validation of epistaxis severity score for hereditary hemorrhagic telangiectasia in Japan. Auris Nasus Larynx 2021; 49:415-420. [PMID: 34857410 DOI: 10.1016/j.anl.2021.11.005] [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: 09/21/2021] [Revised: 10/21/2021] [Accepted: 11/10/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE This study aimed to assess the health-related QoL (HR-QoL) of patients with hereditary hemorrhagic telangiectasia (HHT), with emphasis on the role/social aspects, and validate the Japanese version of the epistaxis severity score (ESS) in these patients. METHODS The Japanese version of the ESS was created through forward and reverse translation, and consultation with the original author. A validation analysis was performed by comparing ESS severity with the invasiveness of previous treatments for epistaxis and assessing the correlation between the ESS and HR-QoL. Medical history forms, ESS questionnaires, and the Medical Outcomes Study Short Form 36 (SF-36) were distributed to participants with HHT in August 2020. The relation between the ESS and summary scores of SF-36 was assessed by performing analysis of variance and Spearman's correlation. RESULTS In total, 73 participants were included in this study. The average ESS was 5.02; there were mild (32.9%), moderate (45.2%), and severe (21.9%) epistaxis groups. Patients with higher ESS received a significantly more invasive treatment (Fisher's exact test, p < 0.05). The ESS was also negatively correlated with the physical component score (PCS) (r = -0.489, p < 0.001). Comorbid liver and gastrointestinal arteriovenous malformations significantly reduced the PCS (p < 0.05). Multiple regression analysis revealed that the ESS was a significant variable (p < 0.01). The role/social component score was significantly lower in the severe ESS group than in the mild or moderate group. CONCLUSION The Japanese version of the ESS was considered valid and may be useful as an outcome measure of future HHT-associated epistaxis trials in Japan.
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Affiliation(s)
- Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan.
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | | | - Shun Tatehara
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe city, Hyogo, Japan
| | - Go Inokuchi
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe city, Hyogo, Japan
| | - Jeffrey B Hoag
- Department of Pulmonary, Allergy and Critical Care Medicine, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, U.S.A
| | - Tomoharu Sato
- Department of Biostatistics and Data Science, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | - Yuta Amano
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | - Eisuke Hida
- Department of Biostatistics and Data Science, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | - Ken-Ichi Nibu
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe city, Hyogo, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
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Hayama M, Maeda Y, Tsuda T, Akazawa H, Nakatani A, Obata S, Takeda K, Inohara H. Epistaxis limits the performed activities of daily living in proportion to its severity: a cross-sectional survey among patients with hereditary haemorrhagic telangiectasia. RHINOL 2021. [DOI: 10.4193/rhinol/21.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background: We examined the severity of epistaxis in patients with hereditary haemorrhagic telangiectasia (HHT) and its relationship with the performed activities of daily living. Methodology: This cross-sectional survey included 36 patients with HHT in Japan. An anonymous questionnaire survey was conducted regarding the severity of epistaxis, the measures adopted to prevent epistaxis, and the limitations in the performed activities of daily living. The latter was assessed using a visual analogue scale (VAS). The correlation between epistaxis severity and the VAS score was analysed using Spearman’s rank correlation coefficient. Results: Of the 36 participants surveyed, 94.4% had >1 episode of epistaxis/week. The mean epistaxis severity score (ESS) was 4.3 (range, 0.9–8.4). Limitations in daily life, going out (within a day), meeting with others, eating with others, and going on overnight trips were positively correlated with the ESS. To prevent nosebleeds, 44.4% and 41.7% of the participants used medications and avoided drying their nasal cavities, respectively. Conclusions: Epistaxis impacted the daily life of patients with HHT in proportion to its severity. Nonetheless, less than half of the patients used medications or took precautions. Hence, further educational activities should be considered for medical professionals and patients.
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12
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Ashida N, Maeda Y, Kitamura T, Hayama M, Tsuda T, Nakatani A, Obata S, Takeda K, Akazawa H, Inaba F, Hosomi N, Uno A, Inohara H. Isolated sphenoid sinus opacification is often asymptomatic and is not referred for otolaryngology consultation. Sci Rep 2021; 11:11902. [PMID: 34099744 PMCID: PMC8184879 DOI: 10.1038/s41598-021-89995-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 04/27/2021] [Indexed: 12/01/2022] Open
Abstract
Isolated sphenoid sinus opacifications (ISSOs) are clinically important because they can lead to serious complications. However, some patients with ISSOs are asymptomatic, and not all patients are properly referred to the otolaryngology department. Because past studies of ISSOs focused only on patients who received treatment, in this study we selected ISSO cases based on radiology reports, then determined whether these patients had symptoms and were appropriately referred for specialty care. We conducted a retrospective analysis of data collected from patients who underwent computed tomography or magnetic resonance imaging from January 2007 to March 2017 at Osaka General Medical Center. We searched for the terms “sphenoid” or “sphenoidal” using F-REPORT to identify patients who had a sphenoid disease. We checked all selected images and diagnosed ISSOs. Examination of 1115 cases revealed 223 cases of ISSOs, of whom 167 (74.9%) were asymptomatic. We categorized patients with ISSOs into four groups: inflammation, mucocele, fungal diseases, and unclassifiable; the final category was used when edges were irregular or complete opacity was encountered. In the unclassifiable group, the majority of cases required otolaryngology consultation, but 37 of 47 unclassifiable patients did not have an otolaryngology visit. ISSOs are often identified by chance on imaging tests performed by non-otolaryngologists. However, our study revealed that many patients with ISSOs who should be treated by otolaryngologists were not referred to the otolaryngology department. Accordingly, it is important to promote awareness of the disease among other types of clinicians.
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Affiliation(s)
- Naoki Ashida
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.,Department of Otolaryngology-Head and Neck Surgery, Osaka Rosai Hospital, Sakai, Osaka, Japan.,Department of Otolaryngology-Head and Neck Surgery, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - Takahiro Kitamura
- Department of Otolaryngology-Head and Neck Surgery, Osaka General Medical Center, Osaka, Osaka, Japan.,Department of Otolaryngology, Yao Municipal Hospital, Yao, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Hitoshi Akazawa
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Fumitaka Inaba
- Department of Diagnostic Imaging, Osaka General Medical Center, Osaka, Osaka, Japan.,Department of Radiology, Rinku General Medical Center, Izumisano, Osaka, Japan
| | - Naohiro Hosomi
- Department of Diagnostic Imaging, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Atsuhiko Uno
- Department of Otolaryngology-Head and Neck Surgery, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
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13
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Obata S, Hayama M, Maeda Y, Nakatani A, Inohara H. A slowly progressive lesion of frontal sinus with bone destruction. J Stomatol Oral Maxillofac Surg 2021; 123:266-268. [PMID: 33845187 DOI: 10.1016/j.jormas.2021.04.002] [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] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
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14
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Adachi K, Maeda Y, Hayama M, Kitaguchi Y, Nojima S, Nitta K, Obata S, Nakatani A, Tsuda T, Takeda K, Morii E, Inohara H. Skull Base Metastasis of Breast Cancer With Oculomotor and Trochlear Nerve Palsy. Ear Nose Throat J 2020; 101:NP270-NP272. [PMID: 33035131 DOI: 10.1177/0145561320963676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Skull base metastatic tumors are rare. Breast cancer in particular can cause bone metastases after a long period of time. A 70-year-old woman presented with multiple cranial nerve palsy. Magnetic resonance imaging revealed a lesion that extended from the orbit to the base of the skull, and the patient was referred to our department. Ophthalmological evaluation showed left visual acuity impairment, left oculomotor nerve palsy, and left trochlear nerve palsy. Endoscopic biopsy performed 5 years after the completion of breast cancer treatment revealed skull base metastases. In unilateral multiple cranial nerve palsy, the possibility of skull base metastases should be considered.
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Affiliation(s)
- Kana Adachi
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshiyuki Kitaguchi
- Department of Ophthalmology, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Satoshi Nojima
- Department of Pathology, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kanae Nitta
- Department of Surgery, Otemae Hospital, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Eiichi Morii
- Department of Pathology, 13013Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, 13013Osaka University Graduate School of Medicine, Osaka, Japan
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15
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Akita K, Hayama M, Tsuda T, Maeda Y, Akazawa H, Nakatani A, Obata S, Takeda K, Inohara H. Factors impacting postoperative haemorrhage after transnasal endoscopic surgery. RHINOL 2020. [DOI: 10.4193/rhinol/20.059] [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: 11/08/2022] Open
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16
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Tsuruta Y, Maeda Y, Kitaguchi Y, Hayama M, Nojima S, Tsuda T, Takeda K, Nakatani A, Obata S, Morii E, Inohara H. A Case of Endonasal Endoscopic Surgery for Intraorbital Metastasis of Gastric Ring Cell Carcinoma. Ear Nose Throat J 2020; 101:NP24-NP27. [PMID: 32697105 DOI: 10.1177/0145561320943372] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Gastric signet ring cell carcinoma has well-known metastatic features, including peritoneal dissemination and carcinomatous lymphangitis of the lung, but no intraorbital metastases were reported previously. A woman in her 60s developed left eye pain, sudden vision loss, and headache 12 years after gastric cancer treatment. Symptoms did not improve despite steroid pulses. Craniotomy showed no malignant findings. The patient was referred to our department for symptomatic relief and biopsy due to the lack of a definitive diagnosis and no improvement in her ocular pain. Endonasal endoscopic surgery was performed for diagnostic purposes and to relieve symptoms through orbital decompression. Preoperative computed tomography examination revealed a tumor at the left medial orbit, extending to the orbital apex. Orbital decompression through the open left medial orbital wall was performed with biopsy of the intraorbital tumor. Pathological findings were consistent with metastatic signet ring cell carcinoma. Pain and subjective improvement of visual acuity were noted the day after surgery. Twelve months postoperatively, diplopia remains, but there has been no worsening of symptoms.
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Affiliation(s)
- Yukinori Tsuruta
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.,Department of Otorhinolaryngology, Ikeda City Hospital, Ikeda City, Osaka, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Yoshiyuki Kitaguchi
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Satoshi Nojima
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
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17
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Tsuda T, Nishide M, Maeda Y, Hayama Y, Koyama S, Nojima S, Takamatsu H, Okuzaki D, Morita T, Nakatani T, Kato Y, Nakanishi Y, Futami Y, Suga Y, Naito Y, Konaka H, Satoh S, Naito M, Izumi M, Obata S, Nakatani A, Shikina T, Takeda K, Hayama M, Inohara H, Kumanogoh A. Pathological and therapeutic implications of eosinophil-derived semaphorin 4D in eosinophilic chronic rhinosinusitis. J Allergy Clin Immunol 2020; 145:843-854.e4. [PMID: 32035658 DOI: 10.1016/j.jaci.2019.12.893] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 07/04/2019] [Revised: 11/11/2019] [Accepted: 12/10/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND Eosinophilic chronic rhinosinusitis (ECRS) is a subtype of chronic rhinosinusitis. Clinical markers for ECRS disease activity and treatment strategies have not been sufficiently established. Although semaphorins are originally identified as neuronal guidance factors, it is becoming clear that they play key roles in immune regulation and inflammatory diseases. OBJECTIVE We sought to investigate the pathological functions and therapeutic potential of semaphorin 4D (SEMA4D) in ECRS. METHODS Serum soluble SEMA4D levels in patients with paranasal sinus diseases were measured by ELISA. The expression of SEMA4D in blood cells and nasal polyp tissues was assessed by flow cytometry and immunohistochemistry, respectively. Generation of soluble SEMA4D was evaluated in matrix metalloproteinase-treated eosinophils. Endothelial cells were stimulated with recombinant SEMA4D, followed by eosinophil transendothelial migration assays. Allergic chronic rhinosinusitis was induced in mice using Aspergillus protease with ovalbumin. The efficacy of treatment with anti-SEMA4D antibody was evaluated histologically and by nasal lavage fluid analysis. RESULTS Serum soluble SEMA4D levels were elevated in patients with ECRS and positively correlated with disease severity. Tissue-infiltrated eosinophils in nasal polyps from patients with ECRS stained strongly with anti-SEMA4D antibody. Cell surface expression of SEMA4D on eosinophils from patients with ECRS was reduced, which was due to matrix metalloproteinase-9-mediated cleavage of membrane SEMA4D. Soluble SEMA4D induced eosinophil transendothelial migration. Treatment with anti-SEMA4D antibody ameliorated eosinophilic infiltration in sinus tissues and nasal lavage fluid in the ECRS animal model. CONCLUSIONS Eosinophil-derived SEMA4D aggravates ECRS. Levels of serum SEMA4D reflect disease severity, and anti-SEMA4D antibody has therapeutic potential as a treatment for ECRS.
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Affiliation(s)
- Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Masayuki Nishide
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan.
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Yoshitomo Hayama
- Department of Respiratory Medicine, Kinki Central Hospital, Itami City, Hyogo, Japan
| | - Shohei Koyama
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Satoshi Nojima
- Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan; Department of Pathology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hyota Takamatsu
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita City, Osaka, Japan
| | - Takayoshi Morita
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Takeshi Nakatani
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Yasuhiro Kato
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Yoshimitsu Nakanishi
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Yu Futami
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Yasuhiko Suga
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Yujiro Naito
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Hachiro Konaka
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Shingo Satoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Maiko Naito
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Mayuko Izumi
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Sho Obata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan
| | - Ayaka Nakatani
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takashi Shikina
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Department of Otolaryngology, Ikeda Municipal Hospital, Ikeda City, Osaka, Japan
| | - Kazuya Takeda
- Department of Otolaryngology, Osaka City General Hospital, Osaka City, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan; Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Suita City, Osaka, Japan; Institute for Open and Transdisciplinary Research Initiatives, Suita City, Osaka, Japan.
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18
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Tsuda T, Maeda Y, Nishide M, Koyama S, Hayama Y, Nojima S, Takamatsu H, Okuzaki D, Kinehara Y, Kato Y, Nakatani T, Obata S, Akazawa H, Shikina T, Takeda K, Hayama M, Inohara H, Kumanogoh A. Eosinophil-derived neurotoxin enhances airway remodeling in eosinophilic chronic rhinosinusitis and correlates with disease severity. Int Immunol 2019; 31:33-40. [PMID: 30239772 PMCID: PMC6364622 DOI: 10.1093/intimm/dxy061] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 09/12/2018] [Indexed: 11/14/2022] Open
Abstract
Eosinophilic chronic rhinosinusitis (ECRS) is a subtype of chronic rhinosinusitis (CRS) that is characterized by intractable nasal polyp formation. Eosinophil-derived neurotoxin (EDN) is an eosinophil granule protein that is closely related to allergic inflammation, but the pathological implications of EDN in ECRS remain unknown. In this study, we evaluated the function of EDN in ECRS pathogenesis and assessed its potential as a disease activity marker. Serum EDN levels were significantly higher in patients with ECRS than in those with other nasal and paranasal diseases, and were positively correlated with clinical disease activity. Production of EDN from isolated human eosinophils was induced by stimulation with IL-5 in vitro. Human nasal epithelial cells were stimulated with EDN, and the resultant changes in gene expression were detected by RNA sequencing. Pathway analysis revealed that the major canonical pathway affected by EDN stimulation was 'regulation of the epithelial-mesenchymal transition pathway'; the only gene in this pathway to be up-regulated was matrix metalloproteinase 9 (MMP-9). Consistent with this, immunostaining analysis revealed intense staining of both EDN and MMP-9 in nasal polyps from patients with ECRS. In conclusion, our data demonstrate that serum EDN level is a useful marker for the evaluation of ECRS severity. Furthermore, EDN induces production of MMP-9 from the nasal epithelium, which may be involved in the pathogenesis of ECRS.
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Affiliation(s)
- Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Yohei Maeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Masayuki Nishide
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Shohei Koyama
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Yoshitomo Hayama
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Satoshi Nojima
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan.,Department of Pathology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan
| | - Hyota Takamatsu
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Yuhei Kinehara
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Yasuhiro Kato
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Takeshi Nakatani
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan
| | - Sho Obata
- Department of Otolaryngology, Osaka Rosai Hospital, Nagasone-cho, Sakai, Osaka, Japan
| | - Hitoshi Akazawa
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan
| | - Takashi Shikina
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Department of Otolaryngology, Ikeda Municipal Hospital, Jyonan, Ikeda, Osaka, Japan
| | - Kazuya Takeda
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan
| | - Masaki Hayama
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Immunopathology, World Premier International Immunology Frontier Research Center, Yamadaoka, Suita, Osaka, Japan.,The Institute for Open and Transdisciplinary Research Initiatives (OTRI), 2-2 Yamadaoka, Suita, Osaka, Japan
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Kawasaki H, Kawakami E, Obata S, Fukushima A, Yasuda-Sekiguchi F, Sasaki T, Suda W, Honda K, Ebihara T, Amagai M. 979 Quantitative skin microbiome analysis identified new microbial species associated with atopic dermatitis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.991] [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: 11/30/2022]
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20
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Koreeda Y, Obata S, Nishio Y, Miura S, Kobayashi Y, Kawamura K, Souzaki R, Ieiri S, Hashizume M, Fujie MG. Development and testing of an endoscopic pseudo-viewpoint alternating system. Int J Comput Assist Radiol Surg 2014; 10:619-28. [PMID: 24950746 PMCID: PMC4411650 DOI: 10.1007/s11548-014-1083-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 05/27/2014] [Indexed: 11/28/2022]
Abstract
Purpose An endoscopic system is needed that presents informative images irrespective of the surgical situation and the number of degrees of freedom in endoscopic manipulation. This goal may be achieved with a virtual reality view for a region of interest from an arbitrary viewpoint. An endoscopic pseudo-viewpoint alternation system for this purpose was developed and tested. Method Surgical experts and trainees from an endoscopic surgery training course at the minimally invasive surgery training center of Kyushu University were enrolled in a trial of a virtual reality system. The initial viewpoint was positioned to approximate the horizontal view often seen in laparoscopic surgery, with \documentclass[12pt]{minimal}
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\begin{document}$$20^{\circ }$$\end{document}20∘ between the optical axis of the endoscope and the task surface. A right-to-left suturing task with right hand, based on a task from the endoscopic surgery training course, was selected for testing. We compared task outcomes with and without use of a new virtual reality-viewing system. Result There was a 0.37 mm reduction in total error (\documentclass[12pt]{minimal}
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\begin{document}$$p = 0.02$$\end{document}p=0.02) with use of the proposed system. Error reduction was composed of 0.1 mm reduction on the y-axis and 0.27 mm reduction on the x-axis. Experts benefited more than novices from use of the proposed system. Most subjects worked at a pseudo-viewpoint of around 34\documentclass[12pt]{minimal}
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\begin{document}$$^\circ $$\end{document}∘. Discussion Suturing performance improved with the new virtual reality endoscopic display system. Viewpoint alternation resulted in an overview that improved depth perception and allowed subjects to better aim the marker. This suggests the proposed method offers users better visualization and control in endoscopic surgery.
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Affiliation(s)
- Y Koreeda
- Graduate School of Science and Engineering, Waseda University, 59-309, 3-4-1, Okubo, Shinjuku Ward, Tokyo, Japan,
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Obata S, Matsuo M, Ohta Y, Kan T, Kanegae S, Inoue Y, Kuroiwa A, Yamaguchi H. EP-1095: Salvage intensity-modulated radiation therapy for PSA failure after prostatectomy. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33401-0] [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: 11/16/2022]
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22
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Obata S, Ohta Y, Kan T, Kanegae S, Inoue Y, Matsuo M, Hakariya T. EP-1091 SIMULTANOUS INTEGRATED BOOST USING INTENSITY MODULATED RADIATION THERAPY FOR HORMONE RESISTANT PROSTATE CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71424-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Obata S, Takatsuki H, Ohta Y, Kan T, Kanegae S, Inoue Y, Matsuo M. 1025 poster INTENSITY MODULATED RADIATION THERAPY FOR PROSTATE CANCER. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71147-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Ozaki C, Obata S, Yamanaka H, Tominaga S, Suzuki ST. The extracellular domains of E- and N-cadherin determine the scattered punctate localization in epithelial cells and the cytoplasmic domains modulate the localization. J Biochem 2010. [DOI: 10.1093/jb/mvq046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Obata S, Goto H. Computational chemistry approach to polymorphism of aspirin. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809288x] [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: 11/10/2022] Open
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26
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Nakayama N, Obata S, Ohta K, Goto H. Development of polarizable force field for the prediction of molecular crystal structures. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308093355] [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: 11/10/2022] Open
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27
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Masuyama S, Komiya T, Tamura N, Sakaguchi G, Obata S, Kimura C, Kobayashi T, Nakamura H. [Coronary malperfusion of left main trunk due to localized dissection of the ascending aorta]. Kyobu Geka 2007; 60:433-7; discussion 437-40. [PMID: 17564056] [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: 05/15/2023]
Abstract
Case 1. Forty nine years woman was given a diagnosis of acute myocardial infarction. Coronary angiography and trans-esophageal echocardiography showed left main trunk dissection due to local aortic root dissection. We operated surgical repair at left main trunk by pericardium after percutaneous coronary intervention. Case 2. Forty nine years man was given a diagnosis of acute myocardial infarction caused by left main trunk dissection due to traumatic local aortic root dissection. We operated coronary artery bypass grafting after insertion of perfusion catheter to left main trunk for maintain coronary perfusion. Although local dissection of aortic aorta is relatively rare, it is potentially complicated with coronary malperfusion. We describe 2 success a cases of surgical treatment for local acute type A aortic dissection complicated with coronary malperfusion.
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Affiliation(s)
- Shinji Masuyama
- Department of Cardiovascular Surgery, Kurashiki Central Hospital, Kurashiki, Japan
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Matsuo S, Yamaguchi S, Miyamoto S, Ishii T, Tsuneoka N, Obata S, Hayashi T, Kanematsu T. Ruptured aneurysm of the visceral artery: report of two cases. Surg Today 2002; 31:660-4. [PMID: 11495164 DOI: 10.1007/s005950170103] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We present herein two cases of a ruptured aneurysm of the visceral artery. The first case involved a 74-year-old man with abdominal pain who was admitted to our hospital with a tentative diagnosis of intra-abdominal bleeding of unknown origin. Computed tomography revealed a hematoma in the greater curvature of the stomach. At surgery, a hematoma along the right gastroepiploic artery was found and totally removed. Histological examination showed a pseudo-aneurysm of unknown etiology. The second case involved a 68-year-old man with progressive anemia who presented with spontaneous intra-abdominal bleeding. A ruptured aneurysm of the accessory middle colic artery was diagnosed by superior mesenteric angiography. The ruptured aneurysm was ligated and totally resected without a colectomy. Histological examination showed a pseudoaneurysm of unknown etiology. The postoperative courses were uneventful, and both patients were doing well at the time of writing.
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Affiliation(s)
- S Matsuo
- Department of Surgery, Nagasaki Prefectural Shimabara Onsen Hospital, Japan
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29
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Obata S, Hirata Y, Sunakawa K, Inoue M. [An epidemiological study for fungus isolation during the twenty-five year periods from 1976 to 2000 in Kitasato University Hospital]. Kansenshogaku Zasshi 2001; 75:863-9. [PMID: 11712361 DOI: 10.11150/kansenshogakuzasshi1970.75.863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We investigated an epidemiological study for fungus isolation in our hospital from 1976 to 2000. For 25 years, the total sample number of fungus examination were 64,296, and after 1988, the total sample number increased suddenly. As a whole, the positive ratio was constantly about 40%. When our hospital opened, the obstetrical and gynecological samples showed 38.8% for fungus examination, but recently, samples of the respiratory organ has increased. Ratio of isolation for yeast, Candida albicans was 53.8%, and another yeasts such as Candida glabrata, Candida tropicalis, Candida parapsilosis were 12.5%, 5.3%, and 3.4%, respectively. Recently, isolation of Candida glabrata showed a tendency to increase. For genus Aspergillus, Aspergillus fumigatus was isolated, 48.1%, and Aspergillus nigar, Aspergillus terreus were isolated, 31.4% and 7.5%, respectively. For dermatophytes, Trichophyton rubrum was isolated, 63.6% indermatophytes, and another dermatophytes were Microsporum canis (17.9%), and Trichophyton mentagrophytes (15.9%), respectively. For dermatophytes, isolation of Microsporum canis showed a tendency to increase. Recently, the plural number of species showed a tendency to increase in the samples. Compared with the number of samples at the beginning in our hospital, the plural number of species in the samples increased about six times.
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Affiliation(s)
- S Obata
- Department of Clinical Laboratory, Kitasato University Hospital
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Suzuki A, Obata S, Hayashida M, Kawano H, Nakano T, Shiraki K. Retraction: SADS: A new component of Fas-DISC is the accelerator for cell death signaling and is downregulated in patients with colon carcinoma. Nat Med 2001; 7:749. [PMID: 11385516 DOI: 10.1038/89136] [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: 11/08/2022]
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Suzuki A, Obata S, Hayashida M, Kawano H, Nakano T, Shiraki K. SADS: A new component of Fas-DISC is the accelerator for cell death signaling and is downregulated in patients with colon carcinoma. Nat Med 2001; 7:88-93. [PMID: 11135621 DOI: 10.1038/83401] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fas is the death receptor, transducing cell death signaling upon stimulation by Fas ligand. During Fas-initiated cell death signaling, the formation of Fas-death inducing signaling complex (Fas-DISC) is the first step. Here we have identified a new component of Fas-DISC which we call 'small-accelerator for death signaling' (SADS). SADS cDNA encodes a 150 amino acid polypeptide (Mr = 16,700). During Fas-mediated cell death, SADS enhances the interaction of Fas-death domain-interactive factors (FADD) and procaspase-8, and deletion mutant analysis has identified FADD- and caspase-8-interactive domains in SADS. Inhibition or removal of SADS delays Fas-mediated cell death. In addition, we demonstrate the deletion or mutation of SADS in patients with colon carcinoma and that exogenous SADS expression in human colon carcinoma SW480 cells that lack SADS leads to re-acquisition of Fas-mediated cell death. Here, we propose that SADS is one of the cell death-associated factors and enhances Fas-DISC formation, especially FADD and procaspase-8 recruitment.
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Affiliation(s)
- A Suzuki
- Basic Technology Research Laboratory, Daiichi Pharmaceutical Co., Ltd., Tokyo R&D Center, Kitakasai 1-16-13, Edogawa-ku, Tokyo 134-8630, Japan.
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Abstract
1. It is well known that extracellular ATP (ATP(o)) elevates the intracellular Ca(2+) concentration ([Ca(2+)](i)) by inducing Ca(2+) influx or mobilizing Ca(2+) from internal stores via activation of purinoceptors in the plasma membrane. This study shows that ATP(o) also activates the plasma membrane Ca(2+) pumps (PMCPs) to bring the elevated [Ca(2+)](i) back to the resting level in human embryonic kidney-293 (HEK-293) cells. 2. The duration of ATP(o)-induced intracellular Ca(2+) transients was significantly increased by PMCP blockers, La(3+) or orthovanadate. In contrast, replacement of extracellular Na(+) with NMDG(+), a membrane-impermeable cation, had no significant effect on duration, thus suggesting that Na(+)/Ca(2+) exchangers do not participate in the ATP(o)-induced Ca(2+) transient. 3. A rapid and significant decrease in [Ca(2+)](i), which was not dependent on extracellular Na(+), was induced by ATP(o) in cells pretreated with thapsigargin (TG). This decrease was blocked by orthovanadate, indicating that it was caused by PMCPs rather than sarco/endoplasmic reticulum Ca(2+) pumps (SERCPs). 4. UTP and ATPgammaS also caused a decrease in [Ca(2+)](i) in cells pretreated with TG, although they were less effective than ATP. The effect of UTP implies the involvement of both P2Y(1) and P2Y(2) receptors, while the effect of ATPgammaS implies no significant role of ectophosphorylation and agonist hydrolysis in the agonist-induced [Ca(2+)](i) decreases. 5. These results point to a role of PMCPs in shaping the Ca(2+) signal and in restoring the resting [Ca(2+)](i) level to maintain intracellular Ca(2+) homeostasis after agonist stimulation.
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Affiliation(s)
- Z Qi
- Department of Physiology, Nagoya University School of Medicine, 65 Tsurumai, Nagoya 466-8550, Japan
| | - K Murase
- Department of Physiology, Nagoya University School of Medicine, 65 Tsurumai, Nagoya 466-8550, Japan
| | - S Obata
- Department of Anatomy, Nagoya University School of Medicine, 65 Tsurumai, Nagoya 466-8550, Japan
| | - M Sokabe
- Department of Physiology, Nagoya University School of Medicine, 65 Tsurumai, Nagoya 466-8550, Japan
- Cell Mechanosensing Project, ICORP, JST, 65 Tsurumai, Nagoya 466-8550, Japan
- Author for correspondence:
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Morita N, Arizono H, Mitsuka N, Satoh S, Obata S, Minoshita S, Oda S. The alcohol tests for drunken criminals using psychological tests. Nihon Arukoru Yakubutsu Igakkai Zasshi 2000; 35:69-84. [PMID: 10835880] [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: 02/16/2023]
Abstract
In the alcohol test for drunken criminals, we introduced Bender-Gestalt test and Rorschach test for the assessment, and examined their usefulness for the evaluation of intoxication patterns according to Binder's classification. The subjects were 24 drunken criminals who were examined by Mental Hygiene Group, Tsukuba University, for psychiatric evidences. The subjects were divided into the ordinary intoxication group (OI group) and the complicated intoxication group (CI group) on the basis of the behavioral assessment, and the psychological tests were performed before and after drinking. The following results were obtained. 1) Alcohol intoxication induced decrease in R1T, W and VIII + IX + X/R and increase of BGT scores and P%, which indicates that subjects become unable to make comprehensive and delicate responses to the external stimuli. 2) When we classified subjects into increasing and decreasing type on the pattern of changes in the BGT score from before to immediately after drinking in each subject, we found the ratio of increasing type in complicated intoxication is more than in ordinary intoxication significantly. And we found significant group x drinking interaction in F+% and At% of Rorschach test. The F+% significantly decreased only in CI group. The At% in CI group tended upward, but downward in OI group. These findings indicated that complicated intoxication reduced the subject's reality testing, while not in ordinary intoxication. 3) Comparing the effects of personality and intoxication factors in complicated intoxication, intoxication factors were considered to play primary roles. 4) We found association between high BAL and reduction of ego function and imagination, which is represented as significant peak of BALx drinking interaction in the BGT scores, M and FM + m. These observations suggest that the psychological tests as part of the alcohol tests are useful for the evaluation and research of intoxication.
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Affiliation(s)
- N Morita
- Department of Mental Hygiene, University of Tsukuba, Ibaraki, Japan
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35
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Kajino T, Ohto C, Muramatsu M, Obata S, Udaka S, Yamada Y, Takahashi H. A protein disulfide isomerase gene fusion expression system that increases the extracellular productivity of Bacillus brevis. Appl Environ Microbiol 2000; 66:638-42. [PMID: 10653729 PMCID: PMC91874 DOI: 10.1128/aem.66.2.638-642.2000] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have developed a versatile Bacillus brevis expression and secretion system based on the use of fungal protein disulfide isomerase (PDI) as a gene fusion partner. Fusion with PDI increased the extracellular production of heterologous proteins (light chain of immunoglobulin G, 8-fold; geranylgeranyl pyrophosphate synthase, 12-fold). Linkage to PDI prevented the aggregation of the secreted proteins, resulting in high-level accumulation of fusion proteins in soluble and biologically active forms. We also show that the disulfide isomerase activity of PDI in a fusion protein is responsible for the suppression of the aggregation of the protein with intradisulfide, whereas aggregation of the protein without intradisulfide was prevented even when the protein was fused to a mutant PDI whose two active sites were disrupted, suggesting that another PDI function, such as chaperone-like activity, synergistically prevented the aggregation of heterologous proteins in the PDI fusion expression system.
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Affiliation(s)
- T Kajino
- Toyota Central Research & Development Laboratories, Inc., Nagakute, Aichi 480-1192, Japan.
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Matsuo S, Shinozaki T, Yamaguchi S, Takami Y, Obata S, Tsuda N, Kanematsu T. Intrahepatic cholangiocarcinoma with extensive sarcomatous change: report of a case. Surg Today 1999; 29:560-3. [PMID: 10385374 DOI: 10.1007/bf02482354] [Citation(s) in RCA: 16] [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: 12/13/2022]
Abstract
A 77-year-old woman was admitted to our hospital with severe upper abdominal pain. Ultrasonography showed a well-defined hypoechoic mass with heterogeneity in the left lobe of the liver, and computed tomography demonstrated a low-density mass with enhanced peripheral areas. Magnetic resonance imaging revealed a mass with iso- to low signal intensity on T1-weighted images (WI) and heterogeneous high and low signal intensity on T2 WI. The tumor was found to be hypovascular by angiography. During 5 months of observation, the tumor increased in size, which strongly suggested malignancy. A laparotomy was performed under the provisional diagnosis of a neoplasm other than hepatocellular carcinoma, revealing that the hepatic mass had invaded the gastric wall. Therefore, a left hepatic lobectomy with dissection of the lymph nodes and hemigastrectomy was carried out. Histologically, the tumor was found to be composed of a large amount of sarcomatous elements and a small amount of adenocarcinomatous elements, both of which were partly intermingled. Immunohistochemically, the sarcomatous element demonstrated the features of malignant fibrous histiocytoma (MFH). Thus, a diagnosis of intrahepatic cholangiocarcinoma with MFH-like sarcomatous change was confirmed.
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Affiliation(s)
- S Matsuo
- Department of Surgery, Nagasaki Prefectural Shimabara Onsen Hospital, Shimabara, Japan
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Ohto C, Ishida C, Nakane H, Muramatsu M, Nishino T, Obata S. A thermophilic cyanobacterium Synechococcus elongatus has three different Class I prenyltransferase genes. Plant Mol Biol 1999; 40:307-21. [PMID: 10412909 DOI: 10.1023/a:1006295705142] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Prenyltransferases (prenyl diphosphate synthases), which are a broad group of enzymes that catalyze the consecutive condensation of homoallylic diphosphate of isopentenyl diphosphates (IPP, C5) with allylic diphosphates to synthesize prenyl diphosphates of various chain lengths, have highly conserved regions in their amino acid sequences. Based on the above information, three prenyltransferase homologue genes were cloned from a thermophilic cyanobacterium, Synechococcus elongatus. Through analyses of the reaction products of the enzymes encoded by these genes, it was revealed that one encodes a thermolabile geranylgeranyl (C20) diphosphate synthase, another encodes a farnesyl (C15) diphosphate synthase whose optimal reaction temperature is 60 degrees C, and the third one encodes a prenyltransferase whose optimal reaction temperature is 75 degrees C. The last enzyme could catalyze the synthesis of five prenyl diphosphates of farnesyl, geranylgeranyl, geranylfarnesyl (C25), hexaprenyl (C30), and heptaprenyl (C35) diphosphates from dimethylallyl (C5) diphosphate, geranyl (C10) diphosphate, or farnesyl diphosphate as the allylic substrates. The product specificity of this novel kind of enzyme varied according to the ratio of the allylic and homoallylic substrates. The situations of these three S. elongatus enzymes in a phylogenetic tree of prenyltransferases are discussed in comparison with a mesophilic cyanobacterium of Synechocystis PCC6803, whose complete genome has been reported by Kaneko et al. (1996).
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Affiliation(s)
- C Ohto
- Bio Research Laboratory, Toyota Motor Corporation, Toyota, Toyota, Japan
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Abstract
Adult visual cortex undergoes substantial functional change as a result of alterations in visual experience. Binocular retinal lesions lead to a reorganization of the visuotopic map in primary visual cortex. Associated with this change is a strengthening of an existing plexus of long-range horizontal connections by sprouting of axon collaterals and synaptogenesis. To explore the molecular substrate of this change, we studied the expression of potential factors involved in neural plasticity in the area of reorganization. We found elevation in a number of factors as early as 3 days following the lesion, including neurotrophins BDNF, NT3, NGF and the insulin-like growth factor IGF-1. Associated with the changes in neurotrophin levels was an elevation in their receptors. We also measured elevation of transcription factors, CaMKII, MAP2 and synapsins. These experiments provide evidence for a signal transduction cascade associated with cortical reorganization.
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Affiliation(s)
- S Obata
- The Rockefeller University, New York, NY 10021-6399, USA
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Ohto C, Ishida C, Koike-Takeshita A, Yokoyama K, Muramatsu M, Nishino T, Obata S. Gene cloning and overexpression of a geranylgeranyl diphosphate synthase of an extremely thermophilic bacterium, Thermus thermophilus. Biosci Biotechnol Biochem 1999; 63:261-70. [PMID: 10192906 DOI: 10.1271/bbb.63.261] [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
A geranylgeranyl diphosphate (GGPP) synthase gene of an extremely thermophilic bacterium, Thermus thermophilus, was cloned and sequenced. T. thermophilus GGPP synthase, overexpressed in Escherichia coli cells as a glutathione S-transferase fusion protein, was purified and characterized. The fusion protein, retaining thermostability, formed a homodimer, and showed higher specific activity than did a partially purified thermostable enzyme previously reported. Optimal reaction conditions and kinetic parameters were also examined. The deduced amino acid sequence indicated that T. thermophilus GGPP synthase was excluded from the group of bacterial type GGPP synthases and lacked the insertion amino acid residues in the first aspartate-rich motif as do archaeal and eukaryotic short-chain prenyltransferases.
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Affiliation(s)
- C Ohto
- Bio Research Laboratory, Toyota Motor Corporation, Japan
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Obata S, Sago H, Mori N, Davidson M, St John T, Suzuki ST. A common protocadherin tail: multiple protocadherins share the same sequence in their cytoplasmic domains and are expressed in different regions of brain. Cell Adhes Commun 1998; 6:323-33. [PMID: 9865466 DOI: 10.3109/15419069809010791] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
To study the diversity of protocadherins, a rat brain cDNA library was screened using a cDNA for the cytoplasmic domain of human protocadherin Pcdh2 as a probe. The resultant clones contained three different types. One type corresponds to rat Pcdh2; the other two types are distinct from Pcdh2 but contain the same sequence in their cytoplasmic domains and part of the 3' flanking sequence. To clarify the structure of the proteins defined by the new clones, a putative entire coding sequence corresponding to one of the clones was determined. The overall structure is essentially the same as Pcdh2, indicating that the proteins defined by this clone, and probably by other clones, belong to the protocadherin family. Two PCR experiments and an RNase protection assay showed the existence of the corresponding mRNAs in rat brain preparations. Human and mouse cDNA clones with the same sequence properties were also isolated. Taken together, these results indicate that the clones are not cloning artifacts and that corresponding mRNAs are actually expressed in brains of various species. The results of in situ hybridization showed that the mRNAs corresponding to these clones were expressed in different regions in brain. Since protocadherins encoded by these mRNAs are likely to have different specificity in their interaction and share a common activity at their cytoplasmic domains, these protocadherins may provide a molecular basis, in part, to support the complex cell cell interaction in brain.
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Affiliation(s)
- S Obata
- Doheny Eye Institute, Los Angeles, CA 90033, USA
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Obata S, Matsunaga N, Hayashi K, Ohtsubo M, Morikawa T, Takahara O. Fluid-fluid levels in giant cavernous hemangioma of the liver: CT and MRI demonstration. Abdom Imaging 1998; 23:600-2. [PMID: 9922192 DOI: 10.1007/s002619900411] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Fluid-fluid levels were observed in a case of giant cavernous hemangioma on computed tomography (CT) and magnetic resonance (MR) imaging. The fluid-fluid level may be attributed to the separation of blood cells and serous fluid due to the extremely slow flow in cavernous hemangioma of the liver.
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Affiliation(s)
- S Obata
- Department of Radiology, Shimabara Onsen Hospital, Nagasaki, Japan
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42
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Zhang J, Yoneda M, Naruse K, Borgeld HJ, Gong JS, Obata S, Tanaka M, Yagi K. Peroxide production and apoptosis in cultured cells carrying mtDNA mutation causing encephalomyopathy. Biochem Mol Biol Int 1998; 46:71-9. [PMID: 9784841 DOI: 10.1080/15216549800203572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
When cybrids with a point mutation, which locates in the tRNALeu(UUR) gene of mtDNA and causes a mitochondrial encephalomyopathy (MELAS syndrome), were exposed to a high concentration of oxygen (95%), the peroxide production markedly increased by 6 h of oxygen exposure, whereas the peroxide production was similar among the cybrids under a normal concentration of oxygen. The peroxide production by oxygen exposure was enhanced particularly in cybrids with high proportions of the mutant mtDNA and low respiratory capacities. The appearance of apoptotic cells by oxygen exposure was high in cybrids with the impaired respiratory function due to the mutation. An antioxidant NAC successfully suppressed both the peroxide production and apoptosis. These results imply that the peroxide production plays an important role in inducing apoptosis in cells carrying the mtDNA mutation causing encephalomyopathy.
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Affiliation(s)
- J Zhang
- Department of Biomedical Chemistry, Faculty of Medicine, University of Nagoya, Japan
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Ohto C, Nakane H, Hemmi H, Ohnuma S, Obata S, Nishino T. Overexpression of an archaeal geranylgeranyl diphosphate synthase in Escherichia coli cells. Biosci Biotechnol Biochem 1998; 62:1243-6. [PMID: 9692210 DOI: 10.1271/bbb.62.1243] [Citation(s) in RCA: 12] [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: 02/08/2023]
Abstract
An archaeal geranylgeranyl diphosphate synthase was overexpressed in Escherichia coli cells as fusion proteins. These fusion proteins retained their thermostability and had higher specific activity than did a partially purified native enzyme Previously reported. We purified 24.3 mg of MBP (maltose-binding protein)-fusion protein and 5.4 mg of GST (glutathione S-transferase)-fusion protein from a one-liter culture of E. coli. The MBP-fusion proteins existed in dimer, tetramer, octamer, or dodecamer form, and their product specificities were altered according to the oligomerization. The MBP-fusion protein has protease-sensitive sites in the portion corresponding to geranylgeranyl diphosphate synthase.
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Affiliation(s)
- C Ohto
- Bio Research Laboratory, Toyota Motor Corporation, Japan.
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Abstract
Cloning of rat cadherin-8 cDNA demonstrated two types of cDNAs. The overall structure of the protein defined by one type of the cDNA is essentially the same as that of classic cadherins, whereas the protein defined by the other type of cDNA ends near the N-terminus of the fifth repeat of the extracellular domain (EC5) and contains a short unique sequence at the C-terminus. The same truncated type of cDNA was also obtained from a human cDNA library. In Northern blot analysis of rat brain mRNA, a probe for EC5 detected multiple bands of about 3.5-4.3 knt, whereas a probe for the alternative form hybridized with a band of about 3.5 knt. Western blot experiments showed that an antibody against the extracellular domain of rat cadherin-8 stained a band of about 95 kDa and a faint band of about 130 kDa in rat brain extract. These results suggest that cadherin-8 is expressed in two forms, a complete form and a truncated form without a transmembrane domain or cytoplasmic domain, in brain. The complete form of cadherin-8 expressed in L cells was about 130 kDa in molecular mass and was located at the cell periphery, mainly at the cell-cell contact sites. However, we failed to express the truncated form in L cells. The transfectants of the complete form showed weak cell adhesion activity. The complete form of cadherin-8 was sensitive to trypsin digestion, and Ca2+ did not protect cadherin-8 from digestion, in contrast to the classic cadherins. The complete form of cadherin-8 coprecipitated with beta-catenin, but did not immunoprecipitate well with alpha-catenin or gamma-catenin. Cadherin-8, as well as cadherin-11, was mapped to a specific region of chromosome 8 that also includes cadherins-1, -3, and -5.
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Affiliation(s)
- M Kido
- Doheny Eye Institute, University of Southern California School of Medicine, Los Angeles 90033, USA
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45
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Yamaguchi Y, Urabe N, Momiki S, Obata S, Ogawa T, Kimura H. [Adjuvant chemotherapy of lung cancer]. Rinsho Kyobu Geka 1997; 7:448-52. [PMID: 9301798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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46
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Hirayama T, Ishida C, Kuromori T, Obata S, Shimoda C, Yamamoto M, Shinozaki K, Ohto C. Functional cloning of a cDNA encoding Mei2-like protein from Arabidopsis thaliana using a fission yeast pheromone receptor deficient mutant. FEBS Lett 1997; 413:16-20. [PMID: 9287109 DOI: 10.1016/s0014-5793(97)00871-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
To isolate Arabidopsis cDNAs that encode signal transducers and components involved in the regulation of meiosis, a trans-complementation analysis was performed using a Schizosaccharomyces pombe meiosis-defective mutant in which the genes for pheromone receptors were disabled. One cDNA obtained in this screening encodes a polypeptide, named AML1, that shows significant similarity to S. pombe Mei2 protein and has three putative RNA-recognition motifs like as Mei2. Mei2 is involved in the regulation of meiosis in fission yeast. Northern blot analysis showed that the AML1 gene is expressed in each organ. The possible functions of AML1 are discussed.
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Affiliation(s)
- T Hirayama
- Laboratory of Plant Molecular Biology, Tsukuba Life Science Center, The Institute of Physical and Chemical Research (RIKEN), Ibaraki, Japan.
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Satoh S, Obata S, Tanaka H, Ito S, Ishizuka C, Minoshita S, Morita N. Bus hijacking by a pre-schizophrenic: from a viewpoint of criminal romance. Psychiatry Clin Neurosci 1997; 51:223-5. [PMID: 9316168 DOI: 10.1111/j.1440-1819.1997.tb02587.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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
There are cases in which no clear symptoms of schizophrenia are observed in a person at the time of a crime but are diagnosed to have schizophrenia after the crime due to the appearance of typical symptoms. We present psychiatric evidence of a patient who saw a bus hijacking incident on TV during several years of isolation at home after graduation from junior high school, and was then determined to hijack a bus, and carried out the crime 6 months later. The patient exhibited clear symptoms of schizophrenia 3 days after the crime. This case of a crime committed before the appearance of clear symptoms of schizophrenia was evaluated from the viewpoint of verbrecherromantik or 'criminal romance'.
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Affiliation(s)
- S Satoh
- Institute of Community Medicine, University of Tsukuba, Japan
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Obata S. The influence of aphids on the behaviour of adults of the ladybird beetle,Harmonia axyridis (Col.: Coccinellidae). ACTA ACUST UNITED AC 1997. [DOI: 10.1007/bf02769885] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shimada S, Namikawa K, Maeda K, Obata S, Ikei S, Mizutani J, Ogawa M. Endoscopic polypectomy under laparotomy throughout the alimentary tract for a patient with blue rubber bleb nevus syndrome. Gastrointest Endosc 1997; 45:423-7. [PMID: 9165328 DOI: 10.1016/s0016-5107(97)70157-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 02/04/2023]
Affiliation(s)
- S Shimada
- Department of Surgery II, Kumamoto University School of Medicine, Japan
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Abstract
Recently in Japan, 'door-to-door sales' has become of concern because it has created numerous legal and social problems. In this paper, a 47 year old dissociative trance disorder case who presented with possession by God is discussed. Specific types of door-to-door sales is known to use superstition and folk beliefs as tools to lure customers. In this particular case, these religious factors seemed to have played an important role in the precipitation of the disorder and its presentation. In addition, the brain-washing environment observed in video lectures used in door-to-door sales seemed to play an important role in the development of the possessive state. We also performed social psychiatric analysis of the occurrence of the possessive state in a city area, which has been considered to develop within traditional culture. Phenomenological classification by one of the authors was useful for diagnosing underlying disorders in the possessive state.
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Affiliation(s)
- S Satoh
- Institute of Community Medicine, University of Tsukuba, Japan
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