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Obligate aerobic, gram-positive, weak acid-fast, nonmotile bacilli, Tsukamurella tyrosinosolvens: Minireview of a rare opportunistic pathogen

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World Journal of Clinical Cases 2022年第24期10卷 8443-8449页

作者： Daisuke Usuda risa Tanaka Makoto Suzuki Shintaro Shimozawa Hayabusa Takano Yuta Hotchi Shungo Tokunaga Ippei Osugi risa Katou Sakurako Ito Kentaro Mishima Akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Jiro Oba Tomohisa Nomura Manabu Sugita Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima-ku 177-8521TokyoJapan Department of Medicine Juntendo UniversityBunkyo-ku 113-8421TokyoJapan

Tsukamurella species are obligate aerobic,gram-positive,weak acid-fast,nonmotile *** are found in various environments,such as soil,water,sludge,and petroleum reservoir wastewater,and belong to the order *** 2016,there was a reclassification of species within the genus Tsukamurella,merging the species Tsukamurella tyrosinosolvens(***)and Tsukamurella *** species are clinically considered to be a rare opportunistic pathogen,because most reported cases have been related to bacteremia and intravascular prosthetic devices and *** date,it has been isolated only from human specimens,and has always been associated with clinical disease;human infections are very *** infections have included pneumonia,brain abscesses,catheter-related bloodstream infections,ocular infections,bacteremia,and sepsis presenting with septic pulmonary emboli in patients who are *** date,there is no commercially available test for *** the other hand,sequence-based identification,including matrix-assisted laser desorption ionization time-of-flight mass spectrometry,is an alternative method for identifying clinical isolates that are either slow growers or difficult to identify through biochemical *** golden standards for diagnosis and optimal management still remain to be ***,newer molecular biological techniques can provide accurate identification,and contribute to the appropriate selection of definitive therapy for infections caused by this *** of several antimicrobial agents have been proposed for treatment,though the length of treatment for infections has yet to be determined,and should be individualized according to clinical *** patients often experience severe cases due to infection,and life-threatening *** events associated with dissemination and/or failure of source control have ***

关键词： Tsukamurella tyrosinosolvens Gram-positive bacilli Opportunistic infection Sequence-based identification Matrix-assisted laser desorption ionization time-of-flight mass spectrometry Combination antibiotic therapy

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Efficacy of direct-acting antiviral treatment for chronic hepatitis C: A single hospital experience

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World Journal of Hepatology 2018年第1期10卷 88-94页

作者： Rena Kaneko Natsuko Nakazaki risa Omori Yuichiro Yano Masazumi Ogawa Yuzuru Sato Department of Gastroenterology Japan Organization of Occupational Health and Safety Kanto Rosai Hospital

AIM To evaluate the efficacy of direct-acting antivirals(DAAs) in Kanto Rosai Hospital. METHODS All patients with hepatitis C virus(HCV) who underwent DAA prescription were enrolled in this study. The present study was a single center retrospective analysis using patients infected with HCV genotype 1 or 2. Resistance analysis was performed by using direct sequencing and cycleave PCR in genotype 1 patients treated with interferon(IFN)-free DAA. The primary endpoint was sustained virologic response at 12 wk after therapy(SVR12).RESULTS A total of 117 patients participated in the study, including 135 with genotype 1 and 42 with genotype 2. Of the 135 patients with genotype 1, 16 received protease inhibitor + IFN + ribavirin and all achieved SVR. Of the 119 patients who received IFN-free DAA(in different combinations), 102 achieved SVR and 9 failed(7/9 were on daclatasvir/asunaprevir and 2/9 on ledipasvir/sofosbuvir). Efficacy analysis was done only for 43 patients who received daclatasvir/asunaprevir. From this analysis, Y93 resistance-associated substitutions were significantly correlated with *** The SVR rate was 98% for genotype 1 and 100% for genotype 2. However, caution is needed for HCV NS5 A resistance-associated substitutions that are selected by HCV NS5 A inhibitors because cerebrovascular adverse events are induced by some DAA drugs.

关键词： Resistance-associated substitutions Directacting antivirals Sustained viral response Hepatitis C

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Professional identities of occupational therapy practitioners in Japan

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Health 2013年第6期5卷 64-71页

作者： risa Takashima Kazuko Saeki Department of Rehabilitation Megumino Care Support-Elderly Care Nursing Facility Eniwa Japan Faculty of Health Sciences Hokkaido University Sapporo Japan

To aim to inductively clarify the professional identity of occupational therapists who work in a clinical setting, the researchers interviewed the 22 occupational therapists who had a minimum of 5 years or more of practice in the field. The professional identities of the practicing occupational therapists were constructed by the following two core categories: “harmonizing with a client’s life and the characteristic of a client’s disability”, and “giving clients sovereignties as a mission of the occupational therapists”. The occupational therapist can carry the role of coordinator in an interdisciplinary team for the clients with disability by understanding them. This is achieved based on the core category called “giving clients sovereignties as a mission of the occupational therapists”. Furthermore, in order to achieve the clients’ sovereignties, the occupational therapist can be an operational unit by planning practical strategies and practicing them based on the core category called “harmonizing with a client’s life and the characteristic of a client’s disability”. The fact is often difficult for these clients that they are concerned with how he/she lived actively. It is through unique ways of contributing for the clients in a team of professionals that the occupational therapists try to understand the clients not as “patients” but as “human beings”, and try to harmonize with their life and the characteristics of their disability, then try to support and empower them to reach a stage in which they have the sovereignties of their lives.

关键词： Occupational Therapist Professional Identity Grounded Theory Approach

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A Case of Warthin’s Tumor Together with IgG4-Related Sialadenitis

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Open Journal of Pathology（病理学期刊） 2024年第3期 81页

作者： Ryogo Aoki risa Ito Asuka Ohashi Riyoko Niwa Masashi Matsuyama Sachiko Oka Naomi Kawaguchi Toshimasa Sakakima Daichi Kodama Naoki Watanabe Daisuke Okamoto Takafumi Naiki Takuji Tanaka

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Hemorrhagic shock due to submucosal esophageal hematoma along with mallory-weiss syndrome:A case report

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World Journal of Clinical Cases 2022年第27期10卷 9911-9920页

作者： Jiro Oba Daisuke Usuda Shiho Tsuge Riki Sakurai Kenji Kawai Shun Matsubara risa Tanaka Makoto Suzuki Hayabusa Takano Shintaro Shimozawa Yuta Hotchi Kenki Usami Shungo Tokunaga Ippei Osugi risa Katou Sakurako Ito Kentaro Mishima Akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Tomohisa Nomura Manabu Sugita Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima-ku 177-8521TokyoJapan Faculty of Medicine Juntendo UniversityBunkyo-ku 113-8421TokyoJapan

BACKGROUND Esophageal submucosal hematoma is a rare *** the exact etiology remains uncertain,vessel fragility with external factors is believed to have led to submucosal bleeding and hematoma formation;the vessel was ruptured by a sudden increase in pressure due to nausea,and the hematoma was enlarged by antiplatelet or anticoagulant *** conditions are rare,with a better *** present the first known case of submucosal esophageal hematoma-subsequent hemorrhagic shock due to Mallory-Weiss *** SUMMARY A 73-year-old female underwent endovascular treatment for an unruptured cerebral *** patient received aspirin and clopidogrel before surgery and heparin during surgery,and was well during the *** hours after returning to the ICU,she complained of chest discomfort,vomited 500 m L of fresh blood,and entered hemorrhagic *** submucosal hematoma with Mallory-Weiss syndrome was diagnosed through an endoscopic examination and computed *** addition to a massive fluid and erythrocyte transfusion,we performed a temporary compression for hemostasis with a Sengstaken-Blakemore(S-B)***,she became hemodynamically *** postoperative day 1,we performed an upper gastrointestinal endoscopy and confirmed no expansion of the hematoma nor any recurring bleeding;therefore,we removed the S-B tube and clipped the gastric mucosal laceration at the esophagogastric *** started oral intake on postoperative day *** patient made steady progress,and was discharged on postoperative day *** We present the first known case of submucosal esophageal hematoma subsequent hemorrhagic shock due to Mallory-Weiss syndrome.

关键词： Esophageal submucosal hematoma Hemorrhagic shock Mallory-Weiss syndrome Antithrombotic therapy Anticoagulant therapy Case report

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A Carbon Monoxide Sensing Film Based on Hemoglobin Allostery

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Journal of Biomedical Science and Engineering 2014年第4期7卷 173-180页

作者： Yoriko Takada risa Otsuka Kosuke Tsukada Department of Applied Physics and Physico-Informatics Faculty of Science and Technology Keio University Yokohama Japan Graduate School of Fundamental Science and Technology Keio University Yokohama Japan

Carbon monoxide (CO) is a gaseous mediator, which is generated via anenzymatic reaction of heme oxygenase, and it plays physiological roles to regulate cellular respiration and blood flow in the liver. The concentration and distribution of CO molecules in the living body is unknown owing to a lack of a suitable technique for measuring them in vivo. A needle-type CO sensor has been used for bioinstrumentation, but it is inappropriate for implantation in vivo and long-term monitoring. We developed a CO sensor sheet based on hemoglobin (Hb) allostery, as Hb undergoes a conformational change on CO binding. Hb was extracted from mice blood and mixed with agarose gel with a reducer to stabilize deoxy-Hb in the gel. CO-releasing molecules (CORM) were used to mimic CO-generating tissue, and the sensitivity of the Hb gel could be regulated by Hb concentration. We defined the CO–Hb index, an absorbance ratio at 539 and 557 nm, to estimate the accumulation of captured CO in the gel. It correlatively increased with CORM dose, indicating that gel-embedded Hb underwent a conformational change on CO binding, thereby acting as a CO sensor. We subsequently used the Hb-sensor sheet for two-dimensional imaging of CO distribution. CORM-containing gels with different sizes and doses were layered on this sheet. Size- and dose-dependent CO distribution was visualized by scanning the CO-Hb index in the sheet. Our Hb-based CO sensor sheet is composed of biocompatible materials and can be applied to detect low-level CO sources in the living body.

关键词： Carbon Monoxide Gas Sensor Hemeoxygenase Tumor Hypoxia

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Plasma-Assisted Chemical Vapor Deposition of Titanium Oxide Layer at Room-Temperature

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Journal of Crystallization Process and Technology 2014年第1期4卷 20-26页

作者： Satoshi Yamauchi Hiromi Suzuki risa Akutsu Department of Biomolecular Functional Engineering Ibaraki University Hitachi Japan.

Plasma-assisted chemical vapor deposition (PCVD) at pressure as low as 3 mtorr using titanium-tetra-isopropoxide (TTIP) and oxygen mixed gas plasma generated by 13.56 MHz radio frequency power (RF-power) below 70 W were applied to deposit titanium-oxide layer at temperature under 40°C. Plasma optical emission spectroscopy and FTIR indicated that density of OH group in the amorphous layer was related to the density of OH or H2O in the plasma and the species was formed on electrode to induce the RF-power. Hydrophilicity on the layer was dependent on the density of chemisorbed OH, but was degraded by the excess OH. The PCVD-TiOx coating was demonstrated on polyethylene terephthalate and showed good hydrophilic property with the contact angle of water about 5°.

关键词： PCVD Amorphous Titanium-Oxide FTIR Hydroxyl Hydrophilicity

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Amebic liver abscess by Entamoeba histolytica

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World Journal of Clinical Cases 2022年第36期10卷 13157-13166页

作者： Daisuke Usuda Shiho Tsuge Riki Sakurai Kenji Kawai Shun Matsubara risa Tanaka Makoto Suzuki Hayabusa Takano Shintaro Shimozawa Yuta Hotchi Shungo Tokunaga Ippei Osugi risa Katou Sakurako Ito Kentaro Mishima Akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Jiro Oba Tomohisa Nomura Manabu Sugita Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima 177-8521TokyoJapan Department of Sports Medicine Faculty of MedicineJuntendo UniversityBunkyo 113-8421TokyoJapan

Amebic liver abscesses(ALAs)are the most commonly encountered extraintestinal manifestation of human invasive amebiasis,which results from Entamoeba histolytica(***)spreading *** can be complicated by liver abscess in 9%of cases,and ALAs led to almost 50000 fatalities worldwide in *** there have been fewer and fewer cases in the past several years,ALAs remain an important public health problem in endemic *** causes both amebic colitis and liver abscess by breaching the host’s innate defenses and invading the intestinal *** often enter the circulatory system,where they are filtered in the liver and produce abscesses,and develop into severe invasive diseases such as *** clinical presentation can appear to be colitis,including upper-right abdominal pain accompanied by a fever in ALA *** diagnosis requires nonspecific liver imaging as well as detecting *** antibodies;however,these antibodies cannot be used to distinguish between a previous infection and an acute ***,diagnostics primarily aim to use PCR or enzyme-linked immunosorbent assay to detect *** can be treated medically,and percutaneous catheter drainage is only necessary in approximately 15%of *** indicated treatment is to administer an amebicidal drug(such as tinidazole or metronidazole)and paromomycin or other luminal cysticidal agent for clinical *** is good with almost universal *** which diagnostic methods are most efficacious will necessitate further analysis of similar clinical cases.

关键词： Amebic liver abscess Entamoeba histolytica Polymerase chain reaction Enzyme-linked immunosorbent assay Percutaneous catheter drainage Amebicidal drug

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Endoscopic submucosal dissection of a rectal carcinoid tumor using grasping type scissors forceps

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World Journal of Gastroenterology 2009年第17期15卷 2162-2165页

作者： Kazuya Akahoshi Yasuaki Motomura Masaru Kubokawa Noriaki Matsui Manami Oda risa Okamoto Shingo Endo Naomi Higuchi Yumi Kashiwabara Masafumi Oya Hidefumi Akahane Haruo Akiba Department of Gastroenterology Aso Iizuka Hospital Iizuka 820-8505 Japan Department of Pathology Aso Iizuka Hospital Iizuka 820-8505 Japan Fujifilm Corporation Saitama 331-9624 Japan

Endoscopic submucosal dissection （ESD） with a knife is a technically demanding procedure a ssociated with ahigh complication rate. The shortcomings of this meth-od are the inability to fix the knife to the target lesion,and compression of the lesion. These can lead to major complications such as perforation and bleeding. To reduce the risk of complications related to ESD, we developed a new grasping type scissors forceps （GSF）,which can grasp and incise the targeted tissue using electrosurgical current. Colonoscopy on a 55-year-old woman revealed a 10-ram rectal submucosal *** histological diagnosis of the specimen obtained by biopsy was carcinoid tumor. Endoscopic ultrasonog-raphy demonstrated a hypoechoic solid tumor limitedto the submucosa without lymph node involvement. Itwas safely and accurately resected without unexpectedincision by ESD using a GSF. No delayed hemorrhage or perforation occurred. Histological examination confirmed the carcinoid tumor was completely excisedwith negative resection margin.

关键词： Endoscopic submucosal dissection New device Rectal carcinoid Grasping type scissors forceps Endoscopic therapy

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Diffuse large B cell lymphoma originating from the maxillary sinus with skin metastases:A case report and review of literature

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World Journal of Clinical Cases 2021年第23期9卷 6886-6899页

作者： Daisuke Usuda Toshihide Izumida Nao Terada Ryusho Sangen Toshihiro Higashikawa Sayumi Sekiguchi risa Tanaka Makoto Suzuki Yuta Hotchi Shintaro Shimozawa Shungo Tokunaga Ippei Osugi risa Katou Sakurako Ito Suguru Asako Yoshie Takagi Kentaro Mishima Akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Jiro Oba Tomohisa Nomura Manabu Sugita Yuji Kasamaki Department of General Medicine Kanazawa Medical University Himi Municipal HospitalHimi-shi 935-8531Toyama-kenJapan Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima-ku 177-0035Tokyo-toJapan Kanazawa Medical University Himi Municipal Hospital Himi-shi 935-8531Toyama-kenJapan

BACKGROUND Diffuse large B-cell lymphoma(DLBCL)is the most common type of malignant lymphoma(ML),accounting for 30%-40%of cases of non-Hodgkin’s lymphoma(NHL)in *** paranasal sinus lymphoma is a rare presentation of extranodal NHL that accounts for only 0.17%of all *** from the maxillary sinus(MS)is a particularly rare presentation,and is thus often difficult to *** have reported the first known case of DLBCL originating from the MS with rapidly occurrent multiple skin *** SUMMARY An 81-year-old Japanese man visited our hospital due to continuous pain for 12 d in the left maxillary nerve *** medical history included splenectomy due to a traffic injury,an old right cerebral infarction from when he was 74-years-old,hypertension,and type 2 diabetes mellitus.A plain head computed tomography(CT)scan revealed a 3 cm×3.1 cm×3 cm sized left *** day 25,left diplopia and ptosis occurred,and a follow-up CT on day 31 revealed the growth of the left MS *** on an MS biopsy on day 50,we established a definitive diagnosis of DLBCL,non-germinal center B-cell-like originating from the left *** patient was admitted on day 62 due to rapid deterioration of his condition,and a plain CT scan revealed the further growth of the left MS mass,as well as multiple systemic metastasis,including of the skin.A skin biopsy on day 70 was found to be the same as that of the left MS *** notified the patient and his family of the disease,and they opted for palliative care,considering on his condition and *** patient died on day *** This case suggests the need for careful,detailed examination,and for careful follow-up,when encountering patients presenting with a mass.

关键词： Diffuse large B cell lymphoma Non-germinal center B-cell-like lymphoma Malignant lymphoma Maxillary sinus Skin metastasis Case report

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