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Efficacy of cytapheresis in patients with ulcerative colitis showing insufficient or lost response to biologic therapy

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World Journal of Gastroenterology 2022年第34期28卷 4959-4972页

作者： masahiro iizuka Takeshi Etou Shiho Sagara Akita Health Care Center Akita Red Cross HospitalAkita 010-0001Japan Department of Gastroenterology Akita Red Cross HospitalAkita 010-1495Japan

For the optimal management of refractory ulcerative colitis(UC),secondary loss of response(LOR)and primary non-response to biologics is a critical *** article aimed to summarize the current literature on the use of cytapheresis(CAP)in patients with UC showing a poor response or LOR to biologics and discuss its advantages and ***,we summarized the efficacy of CAP in patients with UC showing insufficient response to thiopurines or immunomodulators(IM).Eight studies evaluated the efficacy of CAP in patients with UC with inadequate responses to thiopurines or *** were no significant differences in the rate of remission and steroid-free remission between patients exposed or not exposed to thiopurines or *** studies evaluated the efficacy of CAP in patients with UC showing an insufficient response to biologic *** remission rates of biologics exposed or unexposed patients were 29.4%and 44.2%,*** studies evaluated the efficacy of CAP in combination with biologics in patients with inflammatory bowel disease showing a poor response or LOR to *** rates of remission/response and steroid-free remission in patients with UC ranged 32%-69%(mean:48.0%,median:42.9%)and 9%-75%(mean:40.7%,median:38%),*** had the same effectiveness for remission induction with or without prior failure on thiopurines or IM but showed little benefit in patients with UC refractory to *** heterogeneity existed in the efficacy of the combination therapy with CAP and biologics,these combination therapies induced clinical remission/response and steroid-free remission in more than 40%of patients with UC refractory to biologics on *** the excellent safety profile of CAP,this combination therapy can be an alternative therapeutic strategy for UC refractory to *** prospective studies are needed to understand the efficacy of combination therapy with CAP and biologics.

关键词： Ulcerative colitis Inflammatory bowel disease Cytapheresis Granulocyte and monocyte adsorptive apheresis Anti-tumor necrosis factor-αantibody Combination therapy

Acute respiratory distress syndrome associated with severe ulcerative colitis

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World Journal of Gastroenterology 2010年第19期16卷 2440-2442页

作者： Shiho Sagara Yasuo Horie Yumiko Anezaki Hideaki Miyazawa masahiro iizuka Health Care Center Akita Red Cross Hospital Akita 010-0001 Japan Department of Internal Medicine Akita University School of Medicine Akita 010-8543 Japan Department of Surgery Akita University School of Medicine Akita 010-8543 Japan

Various extraintestinal manifestations including pulmonary abnormalities have been reported in patients with ulcerative colitis. Acute respiratory distress syndrome (ARDS) is a serious and fatal pulmonary manifestation. We have experienced a 67-year-old male patient with ARDS associated with a severe type of ulcerative colitis (UC). Severe dyspnea symptoms occurred during the treatment of UC in a previous hospital and the patient was transferred to our hospital on June 27, 2007. Both blood and sputa cultures for bacteria and fungi were negative. Cytomega-lovirus antigenemia was also not detected. From the clinical and radiological [Chest X-ray, computed tomography (CT)] findings, the patient was diagnosed with ARDS on the basis of the def inition of ARDS developed by the European-American Consensus Conference on ARDS. Both colonic inflammations and ARDS symptoms of the patient were resistant to any medical treatment includingcorticosteroids and antibiotics. However, ARDS symptoms were dramatically improved after surgical colectomy. We believe that severe colonic inflammation from UC was closely associated with the onset of ARDS of the patient. Our case report suggests that a severe type of ulcerative colitis might be taken into consideration as one of the predisposing factors of ARDS.

关键词： Acute respiratory distress syndrome Ulcerative colitis Inflammatory bowel disease Extra-intestinal manifestation

Cytapheresis re-induces high-rate steroid-free remission in patients with steroid-dependent and steroid-refractory ulcerative colitis

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World Journal of Gastroenterology 2021年第12期27卷 1194-1212页

作者： masahiro iizuka Takeshi Etou Yosuke Shimodaira Takashi Hatakeyama Shiho Sagara Akita Health Care Center Akita Red Cross HospitalAkita 010-0001Japan Department of Gastroenterology Akita Red Cross HospitalAkita 010-1495Japan Department of Gastroenterology and Neurology Akita University Graduate School of MedicineAkita 010-8543Japan akashi Hatakeyama Department of NephrologyAkita Red Cross HospitalAkita 010-1495Japan

BACKGROUND It is a crucial issue for patients with refractory ulcerative colitis(UC),including steroid-dependent and steroid-refractory patients,to achieve and maintain steroid-free ***,clinical studies focused on the achievement of steroid-free remission in refractory UC patients are ***(CAP)is a non-pharmacological extracorporeal therapy that is effective for active UC with fewer adverse *** study comprised UC patients treated with CAP and suggested the efficacy of CAP for refractory UC *** To clarify the efficacy of CAP in achieving steroid-free remission in refractory UC *** We retrospectively reviewed the collected data from 55 patients with refractory UC treated with *** analyzed the following points:(1)Efficacy of the first course of CAP;(2)Efficacy of the second,third,and fourth courses of CAP in patients who experienced relapses during the observation period;(3)Efficacy of CAP in colonic mucosa;and(4)Long-term efficacy of *** efficacy was evaluated using Lichtiger’s clinical activity index or Sutherland index(disease activity index).Mucosal healing was evaluated using Mayo endoscopic *** primary and secondary endpoints were the rate of achievement of steroidfree remission and the rate of sustained steroid-free remission,*** analysis was performed using the paired t-test and chi-squared *** The rates of clinical remission,steroid-free remission,and poor effectiveness after CAP were 69.1%,45.5%,and 30.9%,*** were no significant differences in rate of steroid-free remission between patients with steroiddependent and steroid-refractory *** mean disease activity index and Lichtiger’s clinical activity index scores were significantly decreased after CAP(P<0.0001).The rates of steroid-free remission after the second,third,and fourth courses of CAP in patients who achieved steroid-free remission after the first course of CAP were 8

关键词： Ulcerative colitis Cytapheresis Steroid-dependent Steroid-refractory Steroid-free remission Inflammatory bowel disease

Zn Dissolution-Passivation Behavior with ZnO Formation via In Situ Characterizations

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Energy & Environmental Materials 2024年第1期7卷 197-204页

作者： Tanyanyu Wang masahiro Kunimoto masahiro Yanagisawa Masayuki Morita Takeshi Abe Takayuki Homma Graduate School of Advanced Science and Engineering Waseda University Office of Society-Academia Collaboration for Innovation Kyoto University Graduate School of Engineering Kyoto University Kyoto daigaku-katsura

In this study,ZnO formation during the dissolution-passivation process of Zn anodes is observed via in situ Raman and optical *** Zn passivation during galvanostatic anodization merely follows the dissolution-precipitation model,whereas that of potentiodynamic polarization exhibits different behaviors in different potential ranges.

关键词： in situ characterization Zn dissolution and passivation ZnO formation

Next-generation regenerative therapy for ischemic stroke using peripheral blood mononuclear cells

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Neural Regeneration Research 2024年第11期19卷 2341-2342页

作者： Masato Kanazawa Itaru Ninomiya Yutaka Otsu masahiro Hatakeyama Department of Neurology Brain Research InstituteNiigata UniversityNiigataJapan

Stroke is the second leading cause of death and the third leading cause of disability worldwide after heart *** predict that stroke deaths and permanent disabilities will increase worldwide by the year ***-target therapies may be insufficient,because ischemic cerebral injury involves several ***-mediated therapies are ideal,because they target multiple cell types to enhance protection and recovery.

关键词： ischemic death cerebral

A plant growth chamber system equipped with aerosol generators for studying aerosol-vegetation interactions

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Particuology 2024年第2期85卷 122-132页

作者： Masao Gen Seiji Ikawa masahiro Yamaguchi Fong Zyin Lim Takeshi Izuta I.Wuled Lenggoro Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai980-8577Japan Faculty of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan Graduate School of Fisheries and Environmental Sciences Nagasaki UniversityNagasaki852-8521Japan Institute of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509 Japan Department of Applied Physics and Chemical Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Global Innovation Research Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan

Understanding aerosol-vegetation interactions is vital in ***,the interactions remain elusive partly due to the lack of suitable plant growth chamber ***,deposition of submicron particles on leaf surfaces is challenging due to its low deposition velocities compared to larger *** this work,we present a plant-growth chamber that was used to study the effect of sub-micron black carbon(BC)particles on the growth and photosynthesis of *** chamber system simultaneously enables the growth of multiple plants in pots and the deposition of submicron particles onto *** spraying methods assisted by ultrasonic and electrostatic forces were employed as aerosol generators to realize the particle *** flow regime inside the chamber was numeri-cally calculated to predict the transportation of aerosol particles,suggesting the optimal operating conditions of the *** gas-phase particle size distribution measurements showed that gener-ated BC particles were suspended in submicron diameter *** aerosol generators were examined in the chamber using three conductor and insulator substrates as a model of plant *** observations and spectroscopic analysis ascertained that submicron BC particles generated from our generators were deposited on all substrate *** the developed chamber system,systematic studies can be performed to advance the fundamental understanding of aerosol-vegetation interactions.

关键词： Aerosol Exposure chamber Spray drying Black carbon

Endoscopic hemostasis using self-expandable metal stent combinedwith PuraStat® for patient with high risk of post-endoscopicsphincterotomy bleeding (with video)

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Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 94-96页

作者： Takeshi Ogura Yuki Uba masahiro Yamamura Nobu Nishioka Hiroki Nishikawa 2nd Department of Internal Medicine Osaka Medical and Pharmaceutical UniversityOsakaJapan

To the Editor:Endoscopic sphincterotomy(EST)is an established technique for removal of bile duct stones and self-expandable metal stent(SEMS)***,bleeding can be considered an adverse event after EST,particularly for patients with high risk of bleeding such as those on *** the various techniques reported for obtaining endoscopic hemostasis[1-3].

关键词： bleeding stasis endoscopic

Controlling Three-Step and Five-Step Spin Transitions by Polymorphism in an Fe^(Ⅲ) Spin Crossover Complex

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Chinese Journal of Chemistry 2024年第8期42卷 879-886页

作者： Yingying Wu Shuang Peng Ziyi Zhang Yue Gao Guangyan Xu Jingwei Dai Zhao-Yang Li masahiro Yamashita School of Materials Science and Engineering Nankai University38 Tongyan RoadHaihe Educational ParkTianjin300350 China State Key Laboratory of Medicinal Chemical Biology Nankai UniversityTianjin300071 China Department of Chemistry Graduate School of ScienceTohoku UniversitySendai980-8578 Japan

Comprehensive Summary,Regulating spin crossover(SCO)behavior,especially controlling the spin transition steps,is an important scientific issue,mainly because people aim to control spin bistability and ***,SCO bistability can be regulated by changing the ligand-modifying species,non-coordinated anions,guest molecules,and metal-ion ***,the control of multistability is extremely challenging,especially in Fe(III)SCO ***,we report that[FeIII(H-5-Br-thsa)(5-Br-thsa)]·H2O(5-Br-thsa=(5-bromo-2-hydroxybenzylidene)hydrazinecarbothioamide),a compound we have reported before,exists in two polymorphic forms:polymorph 1 exhibits three-step SCO,and polymorph 2 shows five-step SCO,with multi-step SCO behavior effectively regulated by *** to single-crystal and powder X-ray diffractometry,polymorphs 1 and 2 crystallize in different space groups during their spin transitions,with two-step symmetry breaking observed(Pbcn→Pnc2→Pbcn for polymorph 1;P21/n→Pn→P21/n for polymorph 2).We realized that the behavior of these two polymorphs depends significantly on the structure,including(i)the average Fe—N bond distance,(ii)deformation of octahedral FeIII atoms,and(iii)distinct crystal packing,which account for the large differences observed in magnetic properties.

关键词： Spin crossover Multi-step spin transition Symmetry breaking Polymorphism Magnetic property

Typical gastroduodenal endoscopic findings in a Crohn's disease patient in remission stage

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World Journal of Gastrointestinal Endoscopy 2012年第3期4卷 96-98页

作者： masahiro iizuka Taku Harada Hiro-o Yamano Takeshi Etou Shiho Sagara Department of Gastroenterology Akita Red Cross HospitalAkita 010-1495Japan Akita Health Care Center Akita Red Cross Hospital

A 39-year-old patient with Crohn's disease (CD) was referred to our hospital for maintenance treatment of *** was diagnosed as having CD of the small and large intestines at 32 years *** underwent partial resection of the ileum at 35 years old because of ileal *** had received enteral nutritional supplement (1200 kcal/d) and metronidazole preparation (500 mg/d),and was in remission Crohn's disease activity index *** performed a routine gastroduodenal endoscopic examination,which revealed the representative endoscopic findings of gastroduodenal lesions in CD,namely,bamboo-joint-like appearance of the gastric body and cardia and a notched sign in the *** findings were clearly observed by using indigo carmine dye *** our patient,typical gastroduodenal findings were observed even in the remission stage,suggesting that these findings would contribute to the early diagnosis of CD not only in the active stage but also during remission.

关键词： Crohn’s disease Gastroduodenal findings Bamboo-joint-like appearance Notched sign