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Anti-Aminoacyl tRNA Synthetases Antibodies in Japanese Patients with Interstitial Lung Disease

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Open Journal of Rheumatology and Autoimmune Diseases 2018年第1期8卷 34-42页

作者： shinji sato Michito Hirakata Koichiro Asano Masataka Kuwana Division of Rheumatology Department of Internal Medicine Tokai University School of Medicine Isehara Japan Medical Education Center Keio University School of Medicine Tokyo Japan Division of Pulmonary Medicine Department of Internal Medicine Tokai University School of Medicine Isehara Japan Department of Allergy and Rheumatology Nippon Medical School Graduate School of Medicine Tokyo Japan

Objectives: In the present study, we have sought to establish the clinical and immunological characteristics of Japanese patients with interstitial lung disease (ILD). Methods: Serum samples from 35 patients of ILD were screened for autoantibodies using RNA and protein immunoprecipitation assays. Patients with or without serum antibodies to aminoacyl tRNA synthetases (ARS) were assessed clinically and compared. Results: Sera from 12 of 35 (34%) patients with ILD (mean age at onset = 49.7 yrs;range 27 - 65 yrs) were found to contain anti-ARS antibodies (anti-EJ: 3 patients;anti-OJ: 2 patients;anti-PL-12: 3 patients;anti-KS: 4 patients). Nine of the 12 (75%) were female. Six (50%) had Raynaud’s phenomenon, 5 (42%) had arthralgia/arthritis and four (33%) had rheumatoid factor. Lung biopsy specimens of 8 patients with anti-ARS antibodies were examined histologically in detail. The following was determined: Two patients had usual interstitial pneumonia;3 had non-specific interstitial pneumonia;one had organizing pneumonia;one had lymphocyte interstitial pneumonia and the remaining patient had desquamative interstitial pneumonia. Age at disease onset was significantly lower and the frequency of Raynaud’s phenomenon was significantly greater in these patients compared to anti-ARS-negative patients (49.7 yrs vs. 62.6 yrs, p = 0.004;50% vs. 4%, p = 0.003, respectively). Conclusions: These results indicate that the presence of anti-ARS autoantibodies correlates with ILD without definite diagnosis of connective tissue diseases as well as polymyositis/dermatomyositis (PM/DM) with ILD in Japanese patients.

关键词： Interstitial Lung Disease (ILD) Anti-Aminoacyl tRNA Synthetases (ARS) Antibodies Autoantibody Interstitial Pneumonia with Autoimmune Features (IPAF)

离子排斥色谱用于厌氧消化处理的水中脂肪族羧酸的分析(英文)

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色谱 2012年第4期30卷 369-373页

作者： Kazuaki ITO Jun SAKAMOTO Kazuya NAGAOKA Yohichi TAKAYAMA Takashi KANAHORI Hiroshi SUNAHARA Tsuneo HAYASHI shinji sato Takeshi HIROKAWA Kazuhiko TANAKA Department of Biotechnology and Chemistry Faculty of EngineeringKinki University Hokoku Ind.Co.Ltd. Tosoh Co.Ltd. Department of Applied Chemistry Graduate School of EngineeringHiroshima University Department of Development Science Graduate School for International Development and CooperationHiroshima University

The analysis of seven aliphatic carboxylic acids(formic,acetic,propionic,iso-butyric,n-butyric,iso-valeric and n-valeric acid) in anaerobic digestion process waters for biogas production was examined by ion-exclusion chromatography with dilute acidic eluents(benzoic acid,perfluorobutyric acid(PFBA) and sulfuric acid) and non-suppressed conductivity/ultraviolet(UV) *** columns used were a styrene/divinylbenzene-based strongly acidic cation-exchange resin column(TSKgel SCX) and a polymethacrylate-based weakly acidic cation-exchange resin column(TSKgel Super IC-A/C).Good separation was performed on the TSKgel SCX in shorter retention *** the TSKgel Super IC-A/C,peak shape of the acids was sharp and symmetrical in spite of longer retention *** addition,the mutual separation of the acids was good except for iso-and n-butyric *** better separation and good detection was achieved by using the two columns(TSKgel SCX and TSKgel Super IC-A/C connected in series),lower concentrations of PFBA and sulfuric acid as eluents,non-suppressed conductivity detection and UV detection at 210 *** analysis was applied to anaerobic digestion process *** chromatograms with conductivity detection were relatively simpler compared with those of UV *** use of two columns with different selectivities for the aliphatic carboxylic acids and the two detection modes was effective for the determination and identification of the analytes in anaerobic digestion process waters containing complex matrices.

关键词： ion-exclusion chromatography(IEC) strongly and weakly acidic cation-exchange resin columns perfluorobutyric and sulfuric acids eluents non-suppressed conductivity and ultraviolet(UV) detections aliphatic carboxylic acids anaerobic digestion process waters

Clinical Phenotype of Japanese Patients with Dermatomyositis—Classification Based on Dermatomyositis-Specific Autoantibodies

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Open Journal of Rheumatology and Autoimmune Diseases 2014年第2期4卷 124-130页

作者： shinji sato Masataka Kuwana Michito Hirakata Shinichi Nogi Noriko Sasaki Naofumi Chinen Kiri Honda Eiko Saito Takayuki Wakabayashi Chiho Yamada Yasuo Suzuki Division of Rheumatology Department of Internal Medicine Keio University School of Medicine Tokyo Japan Division of Rheumatology Department of Internal Medicine Tokai University School of Medicine Isehara Japan

Objectives: To correlate the precise specificity of autoantibodies in Japanese dermatomyositis (DM) patients with their clinical phenotypes. Methods: Serum samples from 94 adult DM patients (67 with classical DM and 27 with clinically amyopathic dermatomyositis, CADM) were screened for autoantibodies using immunoprecipitation assays. Patients with antibodies against aminoacyl transfer RNA synthetase (ARS), Mi-2 or who had other autoantibodies were assessed for clinical symptoms and laboratory findings. Results: Sera from 27 of 94 DM patients (29%) were found to have anti-ARS antibodies. Nineteen (20%) had anti-CADM-140/MDA5, 5 (5%) had anti-Mi-2, and 8 (6%) had anti-p155/TIF1-γ. Anti-MJ/NXP-2 was not found in our series of adult DM. Seventeen patients with anti-ARS had fever and 22 had arthritis and interstitial lung disease (ILD), compatible with a diagnosis of anti-ARS syndrome. Seventeen of 19 (89%) with anti-CADM-140/MDA5 had ILD, 16 (84%) of whom developed rapidly progressive ILD (RP-ILD). Four of 5 (80%) with anti-Mi-2 had heliotrope rash and/or Gottron’s sign/papules, and 2 (40%) had V-sign and/or shawl-sign rash, whereas no ILD or malignancy was detected. As seen with anti-Mi-2-positive patients, a low frequency of ILD (13%) was found in patients with anti-p155/TIF1-γ but 6 of 8 (75%) had malignancy during their course. The frequency of ILD was significantly higher in patients with anti-ARS or anti-CADM-140/MDA5 compared with anti-Mi-2 or anti-p155/TIF1-γ (81% and 89%, respectively). It should be noted that anti-CADM-140/MDA5-positive patients suffered significantly more RP-ILD compared to patients with anti-ARS (84% vs. 7%, P < 0.0001). On the other hand, anti-p155/TIF1-γ positive patients had a significantly higher rate of malignancy compared with anti-ARS-, anti-CADM-140/MDA5-and anti-Mi-2-positive patients (75% vs. 7%: P = 0.0004, 5%: P = 0.0006, 0%: P = 0.02, respectively). Conclusions: These results indicate that in addition to antibodies previously id

关键词： Dermatomyositis (DM) Interstitial lung Disease (ILD) Rapidly Progressive Interstitial Lung Disease (RP-ILD) Malignancy Myositis-Specific Autoantibodies

Deep learning-based magnetic resonance imaging reconstruction for improving the image quality of reduced-field-of-view diffusionweighted imaging of the pancreas

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World Journal of Radiology 2023年第12期15卷 338-349页

作者： Yukihisa Takayama Keisuke sato shinji Tanaka Ryo Murayama Nahoko Goto Kengo Yoshimitsu Department of Radiology Faculty of MedicineFukuoka UniversityFukuoka 8140180Japan

BACKGROUND It has been reported that deep learning-based reconstruction(DLR)can reduce image noise and artifacts,thereby improving the signal-to-noise ratio and image ***,no previous studies have evaluated the efficacy of DLR in improving image quality in reduced-field-of-view(reduced-FOV)diffusionweighted imaging(DWI)[field-of-view optimized and constrained undistorted single-shot(FOCUS)]of the *** hypothesized that a combination of these techniques would improve DWI image quality without prolonging the scan time but would influence the apparent diffusion coefficient *** To evaluate the efficacy of DLR for image quality improvement of FOCUS of the *** This was a retrospective study evaluated 37 patients with pancreatic cystic lesions who underwent magnetic resonance imaging between August 2021 and October *** evaluated three types of FOCUS examinations:FOCUS with DLR(FOCUS-DLR+),FOCUS without DLR(FOCUS-DLR−),and conventional FOCUS(FOCUS-conv).The three types of FOCUS and their apparent diffusion coefficient(ADC)maps were compared qualitatively and *** FOCUS-DLR+(3.62,average score of two radiologists)showed significantly better qualitative scores for image noise than FOCUS-DLR−(2.62)and FOCUS-conv(2.88)(P<0.05).Furthermore,FOCUS-DLR+showed the highest contrast ratio and 600 s/mm^(2)(0.72±0.08 and 0.68±0.08)and FOCUS-DLR−showed the highest CR between cystic lesions and the pancreatic parenchyma for the b-values of 0 and 600 s/mm2(0.62±0.21 and 0.62±0.21)(P<0.05),***-DLR+provided significantly higher ADCs of the pancreas and lesion(1.44±0.24 and 3.00±0.66)compared to FOCUS-DLR−(1.39±0.22 and 2.86±0.61)and significantly lower ADCs compared to FOCUS-conv(1.84±0.45 and 3.32±0.70)(P<0.05),*** This study evaluated the efficacy of DLR for image quality improvement in reduced-FOV DWI of the *** can significantly denoise images without prolonging the scan time or

关键词： Deep learning-based reconstruction Magnetic resonance imaging Reduced field-of-view Diffusion-weighted imaging Pancreas

Neuroendocrine carcinoma of the extrahepatic bile duct: A case report

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World Journal of Gastroenterology 2016年第30期22卷 6960-6964页

作者： Yukio Oshiro Ryozo Gen shinji Hashimoto Tatsuya Oda Taiki sato Nobuhiro Ohkohchi Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery Faculty of Medicine University of Tsukuba Department of Pathology Faculty of MedicineUniversity of Tsukuba

Neuroendocrine carcinoma(NEC) originating from the gastrointestinal hepatobiliary-pancreas is a rare, invasive, and progressive disease, for which the prognosis is extremely poor. The patient was a 72-year-old man referred with complaints of jaundice. He was diagnosed with middle extrahepatic cholangiocarcinoma(cT 4N1M0, c Stage Ⅳ). He underwent a right hepatectomy combined with extrahepatic bile duct and portal vein resection after percutaneous transhepatic portal vein embolization. Microscopic examination showed a large-cell neuroendocrine carcinoma according to the WHO criteria for the clinicopathologic classification of gastroenteropancreatic neuroendocrine tumors. Currently, the patient is receiving combination chemotherapy with cisplatin and etoposide for postoperative multiple liver metastases. Although NEC is difficult to diagnose preoperatively, it should be considered an uncommon alternative diagnosis.

关键词： Neuroendocrine carcinoma Extrahepatic bile duct Neuroendocrine tumor

Importance of considering nutrient loadings from small watersheds to a lake-A case study of the Lake shinji watershed,Shimane Prefecture,Japan

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International Journal of Agricultural and Biological Engineering 2018年第5期11卷 124-130页

作者： Hiroaki Somura Hidenobu Kunii Yasumichi Yone Ikuo Takeda Hirokazu sato Graduate School of Environmental and Life Science Okayama UniversityOkayama 7008530Japan Estuary Research Center Shimane UniversityMatsue 6908504Japan Faculty of Life and Environmental Science Shimane UniversityMatsue 6908504Japan

Nutrient loadings from upstream watersheds can have significant impacts on the water quality of receiving water ***,a major river is selected as the target for water quality studies,and the impact of minor rivers tends to be *** is very important to evaluate whether the impact of small rivers on the downstream water quality is *** water sampling and discharge modeling using SWAT were used to analyze the contribution of small rivers to water quality in a receiving *** this analysis,it was determined that the inflowing total nitrogen(TN)and total phosphorus(TP)concentrations from all target rivers exceeded the lake water environmental standards set by the Ministry of the *** contribution of suspended sediment(SS)and TN loads from small rivers did not vary markedly compared with their relative discharge contributions to the lake,at approximately 20%.However,the impact on TP loads to the lake from small rivers was 9.1%higher than their relative flow contributions,accounting for 28.2% of the TP ***,there is a potential to underestimate the impact of ungauged small rivers if only the major river is selected to evaluate the downstream lake water quality.

关键词： suspended sediment(SS) total nitrogen(TN) total phosphorus(TP) watershed management SWAT model

Submucosal hematoma is a highly suggestive finding for amyloid light-chain amyloidosis:Two case reports

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World Journal of Gastrointestinal Endoscopy 2012年第9期4卷 434-437页

作者： shinji Yoshii Katsuhiro Mabe Katsuhiko Nosho Hiroyuki Yamamoto Hiroshi Yasui Hiroyuki Okuda Akira Suzuki Masahiro Fujita Toshihiro sato Department of Gastroenterology Keiyukai Sapporo HospitalSapporo 003-0027Japan Third Department of Internal Medicine Hokkaido University Graduate School of MedicineSapporo 060-8648Japan First Department of Internal Medicine Sapporo Medical University School of MedicineSapporo 060-8556Japan Department of Medical Oncology Keiyukai Sapporo HospitalSapporo 003-0027Japan Department of Pathology KKR Sapporo Medical CenterSapporo 062-0931Japan Keiyukai Institute of Clinical Pathology Sapporo 003-0027Japan

The clinical and endoscopic features of amyloid lightchain(AL) amyloidosis are diverse and mimic various other ***,few reports on submucosal hematomas of the gastrointestinal(GI) tract are available in the ***,we report two cases of AL amyloidosis presenting as submucosal hematomas in the absence of clinical disease elsewhere in the *** 2 cases were referred to our hospital because of *** endoscopic findings in both cases were similar in submucosal hematoma ***,the clinical courses *** the first case,there was no evidence of systemic amyloidosis and the disease was conservatively *** the second case,the disease progressed to systemic amyloidosis and the patient died within a short *** conclude that the endoscopic detection of a submucosal hematoma in the setting of GI bleeding should raise suspicion of AL *** to a hematologist should be done immediately for treatment while the involvement is limited to the GI tract.

关键词： Amyloid light-chain amyloidosis Submucosal hematoma Gastrointestinal bleeding Colonoscopy

Protocol for laparoscopic cholecystectomy: Is it rocket science?

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World Journal of Gastroenterology 2016年第47期22卷 10287-10303页

作者： Tomohide Hori Fumitaka Oike Hiroaki Furuyama Takafumi Machimoto Yoshio Kadokawa Toshiyuki Hata Shigeru Kato Daiki Yasukawa Yuki Aisu Maho Sasaki Yusuke Kimura Yuichiro Takamatsu Masato Naito Masaya Nakauchi Takahiro Tanaka Daigo Gunji Kiyokuni Nakamura Kiyoko sato Masahiro Mizuno Taku Iida Shintaro Yagi shinji Uemoto Tsunehiro Yoshimura Department of Gastrointestinal and General Surgery Tenriyorodusoudanjyo Hospital Department of Gastrointestinal Surgery Mitsubishi Kyoto Hospital Department of Anesthesiology Mitsubishi Kyoto Hospital Department of Gastroenterology and Hepatology Mitsubishi Kyoto Hospital Department of Hepatobiliary Pancreatic Surgery Kyoto University Hospital

Laparoscopic cholecystectomy(LC) does not require advanced techniques, and its performance has therefore rapidly spread worldwide. However, the rate of biliary injuries has not decreased. The concept of the critical view of safety(CVS) was first documented two decades ago. Unexpected injuries are principally due to misidentification of human factors. The surgeon's assumption is a major cause of misidentification, and a high level of experience alone is not sufficient for successful LC. We herein describe tips and pitfalls of LC in detail and discuss various technical ***, based on a review of important papers and our own experience, we summarize the following mandatory protocol for safe LC:(1) consideration that a high level of experience alone is not enough;(2) recognition of the plateau involving the common hepatic duct and hepatic hilum;(3) blunt dissection until CVS exposure;(4) Calot's triangle clearance in the overhead view;(5) Calot's triangle clearance in the view from underneath;(6) dissection of the posterior right side of Calot's triangle;(7) removal of the gallbladder body; and(8) positive CVS exposure. We believe that adherence to this protocol will ensure successful and beneficial LC worldwide, even in patients with inflammatory changes and rare anatomies.

关键词： Laparoscopic cholecystectomy Gallbladder Critical view of safety biliary injury Protocol

Anaplastic Lymphoma Kinase (ALK) and p53 Are Potentially Useful Markers to Distinguish Inflammatory Myofibroblastic Tumor

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Open Journal of Urology 2013年第2期3卷 71-74页

作者： shinji Kurosaka Kazumasa Matsumoto Akira Irie Takahiro Hirayama Morihiro Nishi Tetsuo Fujita Takefumi satoh Yuichi sato Masatsugu Iwamura Kazunari Yoshida Department of Molecular Diagnostics School of Allied Health Sciences Kitasato University Tokyo Japan Department of Urology School of Medicine Kitasato University Tokyo Japan

Aims: Inflammatory myofibroblastic tumor (IMT) of the urinary bladder is a clinically and histologically uncommon benign tumor that can be easily mistaken for a malignant neoplasm. We sought to determine whether immunohistochemical staining would be evaluated IMT of the urinary bladder. We have also shown the literatures that imminohistochemical staining of IMT was investigated to distinguish malignant lesions using PubMed data base. Methods: Immunohistochemical staining, including anaplastic lymphoma kinase (ALK), p53, cytokeratin, vimentin, desmin, alpha-smooth muscle actin, myoglobin, smooth muscle myosin and S100, was carried out on serial sections from archival specimens of three patients who underwent transurethral resection and partial cystectomy. Results: Immunohistchemical staining in all patients was positive for ALK and weak positive for p53 protein. In the literatures, positive rates of ALK and p53 inthe IMT of the urinary bladder were 60.9% and 53.1%, respectively. Sarcoma and carcinosarcoma were shown in the pathological specimens with negative ALK and strongly positive p53 inthe same data base. Conclusions: Both ALK and p53 were potentially useful protein markers to distinguish between IMT and sarcoma. However, this study was small sample size. Further study was warranted an investigation of the availability of these proteins in IMT.

关键词： Inflammatory Myofibroblastic Tumor Immunohistochemistry Bladder Cancer Anaplastic Lymphoma Kinase p53