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Mesenchymal stem cells for cartilage regeneration in dogs

World Journal of Stem Cells 2019年第5期11卷 254-269页

作者： Akari Sasaki Mitsuru Mizuno Manabu Mochizuki ichiro sekiya Laboratory of Veterinary Emergency Medicine Graduate School of Agricultural and Life Sciences the University of Tokyo Bunkyo-ku Tokyo 113- 8657 Japan Center for Stem Cell and Regenerative Medicine Tokyo Medical and Dental University Bunkyo-ku Tokyo 113-8519 Japan

Articular cartilage damage and osteoarthritis (OA) are common orthopedic diseases in both humans and dogs. Once damaged, the articular cartilage seldom undergoes spontaneous repair because of its avascular, aneural, and alymphatic state, and the damage progresses to a chronic and painful situation. Dogs have distinctive characteristics compared to other laboratory animal species in that they share an OA pathology with humans. Dogs can also require treatment for naturally developed OA;therefore, effective treatment methods for OA are desired in veterinary medicine as well as in human medicine. Recently, interest has grown in regenerative medicine that includes the use of mesenchymal stem cells (MSCs). In cartilage repair, MSCs are a promising therapeutic tool due to their self-renewal capacity, ability to differentiate into cartilage, potential for trophic factor production, and capacity for immunomodulation. The MSCs from dogs (canine MSCs;cMSCs) share various characteristics with MSCs from other animal species, but they show some deviations, particularly in their differentiation ability and surface epitope expression. In vivo studies of cMSCs have demonstrated that intraarticular cMSC injection into cartilage lesions results in excellent hyaline cartilage regeneration. In clinical situations, cMSCs have shown great therapeutic effects, including amelioration of pain and lameness in dogs suffering from OA. However, some issues remain, such as a lack of regulations or guidelines and a need for unified methods for the use of cMSCs. This review summarizes what is known about cMSCs, including their in vitro characteristics, their therapeutic effects in cartilage lesion treatment in preclinical in vivo studies, their clinical efficacy for treatment of naturally developed OA in dogs, and the current limitations of cMSC studies.

关键词： Mesenchymal stem cell Dog Cartilage Osteoarthritis Regenerative medicine Veterinary medicine

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Statistical evaluation of cluster formation of relapse in neuromyelitis optica spectrum disorder

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Neural Regeneration Research 2024年第9期19卷 1888-1889页

作者： Tetsuya Akaishi ichiro Nakashima Department of Neurology Tohoku UniversitySendaiJapan Department of Neurology Tohoku Medical and Pharmaceutical UniversitySendaiJapan

Evaluating the cluster formation of clinical attacks in chronic relapsing diseases is an important statistical issue because the presence of attack clusters may influence therapeutic strategies for relapse *** recently reported the occurrence of unevenly clustered attacks in patients with anti-aquaporin-4(AQP4)antibody-positive neuromyelitis optica spectrum disorder(NMOSD)(Akaishi et al.,2020a).

关键词： AQP4 relapse

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Assessing mixing uniformity in microreactors via in-line spectroscopy

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Chinese Journal of Chemical Engineering 2024年第2期66卷 119-124页

作者： Shusaku Asano Shinji Kudo Taisuke Maki Yosuke Muranaka Kazuhiro Mae Jun-ichiro Hayashi Institute for Materials Chemistry and Engineering Kyushu UniversityKasuga 816-8580Japan Department of Chemical Engineering Graduate School of EngineeringKyoto UniversityJapan

Mixing behavior is critical for enhancing the selectivity of fast chemical reactions in microreactors.A high Reynolds number(Re)improves the mixing rate and selectivity of the reactions,but some exceptions of increasing side product yield with the higher Re have been *** study investigated the mixing uniformity in microreactors with in-line UV-vis spectroscopy to clarify the relationship between reaction selectivity and chaotic mixing with the higher Re.A colorization experiment of thymolphthalein in an acidic solution was conducted with an excess acid amount to the base to indicate a non-uniformly mixed ***-uniformity significantly increased with *** the same time,the degree of mixing,which was measured by a usual decolorization experiment,showed that the mixing rate increased with *** in-line analysis of the Villermaux-Dushman reaction during the mixing clarified that side product yield significantly increased with Re at around 300 and then decreased at around *** results suggest the compensation effect between the mixing uniformity and mixing rate on the selectivity of the mixing-sensitive *** mixing,characterized by a larger Re,can disturb mixing uniformity and,in some cases,decrease reaction selectivity.

关键词： Microreactor Villermaux-Dushman reaction In-line analysis Mixing Mass transfer Uniformity

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A Hydrogen-Bonded,Hexagonally Networked,Layered Framework with Large Aperture Designed by Structural Synchronization of a Macrocycle and Supramolecular Synthon

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Precision Chemistry 2024年第5期2卷 221-228页

作者： Hiroki Yoshimura Ryusei Oketani Miki Naruoka Norimitsu Tohnai ichiro Hisaki Division of Chemistry Graduate School of Engineering ScienceOsaka UniversityToyonakaOsaka 560-8531Japan Department of Applied Chemistry Graduate School of EngineeringOsaka UniversitySuitaOsaka 565-0871Japan

To develop porous organic frameworks,precise control of the stacking manner of two-dimensional porous motifs and structural characterization of the resultant framework are *** these points of view,porous molecular crystals formed through reversible intermolecular hydrogen bonds,such as;hydrogen-bonded organic frameworks(HOFs),can provide deep insight because of their high crystallinity,affording single-crystalline X-ray diffraction *** this study,we demonstrate that the stacking manner of hydrogen-bonded hexagonal network(HexNet)sheets can be controlled by synchronizing a homological triangular macrocyclic tecton and a hydrogen-bonded cyclic supramolecular synthon called the phenylene triangle.A structure of the resultant HOF was crystallographically characterized and revealed to have a large channel aperture of 2.4 *** HOF also shows thermal stability up to 290°C,which is higher than that of the conventional HexNet frameworks.

关键词： hydrogen-bonded organicframeworks hexagonalnetwork macrocycle carboxylicacid porosity

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Refinement of Adaptive Dynamical Simulation of Quantum Mechanical Double Slit Interference Phenomenon

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Journal of Modern Physics 2024年第3期15卷 239-249页

作者： Tadashi Ando Andrei Khrennikov ichiro Yamato Department of Applied Electronics Tokyo University of Science Tokyo Japan International Center for Mathematical Modelling in Physics and Cognitive Sciences Linnaeus University V&aumlxj&oum Sweden Department of Biological Science and Technology Tokyo University of Science Tokyo Japan

We applied adaptive dynamics to double slit interference phenomenon using particle model and obtained partial successful results in our previous report. The patterns qualitatively corresponded well with experiments. Several properties such as concave single slit pattern and large influence of slight displacement of the emission position were different from the experimental results. In this study we tried other slit conditions and obtained consistent patterns with experiments. We do not claim that the adaptive dynamics is the principle of quantum mechanics, but the present results support the probability of adaptive dynamics as the candidate of the basis of quantum mechanics. We discuss the advantages of the adaptive dynamical view for foundations of quantum mechanics.

关键词： Double Slit Interference Adaptive Dynamics Quantum Mechanics Particle Model Simulation

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Severe aconite poisoning successfully treated with veno-arterial extracorporeal membrane oxygenation:A case report

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World Journal of Clinical Cases 2024年第2期12卷 399-404页

作者： Saeko Kohara Yoshito Kamijo Ryoko Kyan ichiro Okada Eiju Hasegawa Soichiro Yamada Koichi Imai Asuka Kaizaki-Mitsumoto Satoshi Numazawa Department of Critical Care Medicine and Trauma National Hospital Organization Disaster Medical CenterTokyo 1900014Japan Department of Clinical Toxicology Saitama Medical UniversitySaitama 3500495Japan Saitama Prefectural Institute of Public Health Saitama Prefectural Institute of Public HealthSaitama 3550133Japan Division of Toxicology Department of PharmacologyToxicology and TherapeuticsShowa University School of PharmacyTokyo 1428555Japan

BACKGROUND Most species of aconite contain highly toxic aconitines,the oral ingestion of which can be fatal,primarily because they cause ventricular *** describe a case of severe aconite poisoning that was successfully treated through venoarterial extracorporeal membrane oxygenation(VA-ECMO)and in which detailed toxicological analyses of the aconite roots and biological samples were performed using liquid chromatography-tandem mass spectrometry(LC-MS/MS).CASE SUMMARY A 23-year-old male presented to the emergency room with circulatory collapse and ventricular arrhythmia after ingesting approximately half of a root labeled,“Aconitum japonicum Thunb”.Two hours after arrival,VA-ECMO was initiated as circulatory collapse became refractory to antiarrhythmics and *** hours after arrival,an electrocardiogram revealed a return to sinus *** patient was weaned off VA-ECMO and the ventilator on hospital days 3 and 5,*** hospital day 15,he was transferred to a psychiatric *** other half of the root and his biological samples were toxicologically analyzed using LC-MS/MS,revealing 244.3 mg/kg of aconitine and 24.7 mg/kg of mesaconitine in the *** on admission contained 1.50 ng/mL of *** hospital day 2,neither were *** on admission showed 149.09 ng/mL of aconitine and 3.59 ng/mL of mesaconitine,but these rapidly decreased after hospital day *** The key to saving the life of a patient with severe aconite poisoning is to introduce VA-ECMO as soon as possible.

关键词： Aconite poisoning Fatal arrhythmia Veno-arterial extracorporeal membrane oxygenation Aconitine Mesaconitine Case report

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Correction: MicroRNA-329-3p inhibits the Wnt/β-catenin pathway and proliferation of osteosarcoma cells by targeting transcription factor 7-like 1

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Oncology Research 2024年第8期32卷 1369-1370页

作者： HUI SUN MASANORI KAWANO TATSUYA IWASAKI ichiro ITONAGA YUTA KUBOTA HIROSHI TSUMURA KAZUHIRO TANAKA Department of Orthopaedic Surgery Faculty of MedicineOita UniversityOita879-5503Japan

In the article‘MicroRNA-329-3p inhibits the Wnt/β-catenin pathway and proliferation of osteosarcoma cells by targeting transcription factor 7-like 1’(Oncology Research,2024,Vol.32,No.3,pp.463−***:10.32604/or.2023.044085),there was an error in the compilation of *** have revised Fig.8D to correct this error.A corrected version of Fig.8 is *** correction does not change any results or conclusions of the *** apologize for any inconvenience caused.

关键词： osteosarcoma correction revised

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Silent microscopy to explore a brain that hears butterflies'wings

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Light(Science & Applications) 2022年第6期11卷 1026-1028页

作者： Shin-ichiro Terada Masanori Matsuzaki Department of Physiology Graduate School of MedicineThe University of TokyoTokyoJapan Brain Functional Dynamics Collaboration Laboratory RIKEN Center for Brain ScienceSaitamaJapan International Research Center for Neurointelligence(WPI-IRCN) The University of Tokyo Institutes for Advanced StudyTokyoJapan

A silent two-photon laser-scanning microscopy system,which eliminates mechanical vibrations in the audible range,has enabled the detection of auditory cortical neurons with responses at sound pressure levels as low as... 详细信息

关键词： eliminate system sound

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Recent advances in prostate cancer: WNT signaling, chromatin regulation, and transcriptional coregulators

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Asian Journal of Andrology 2023年第2期25卷 158-165页

作者： Sayuri Takahashi ichiro Takada Department of Urology The Institute of Medical ScienceThe University of TokyoShirokanedaiMinato-kuTokyo 108-8639Japan Department of Urology The Faculty of MedicineThe University of TokyoHongoBunkyo-kuTokyo 113-8655Japan

Prostate cancer is one of the most common diseases in men ***,radiation therapy,and hormonal therapy are effective treatments for early-stage prostate ***,the development of castration-resistant prostate cancer has increased the mortality rate of prostate *** develop novel drugs for castration-resistant prostate cancer,the molecular mechanisms of prostate cancer progression must be *** the signaling pathways regulating prostate cancer development,recent studies have revealed the importance of noncanonical wingless-type MMTV integration site family(WNT)signaling pathways,mainly that involving WNT5A,in prostate cancer progression and metastasis;however,its role remains ***,chromatin remodelers such as the switch/sucrose nonfermentable(SWI/SNF)complex and chromodomain helicase DNA-binding proteins 1 also play important roles in prostate cancer progression through genome-wide gene expression ***,we review the roles of noncanonical WNT signaling pathways,chromatin remodelers,and epigenetic enzymes in the development and progression of prostate cancer.

关键词： chromatin remodeling histone-modifying enzymes prostate cancer WNT5A

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Expression analyses of stress‑responsive genes in the hermatypic coral Acropora tenuis and its symbiotic dinofagellates after exposure to the herbicide Diuron

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Marine Life Science & Technology 2023年第3期5卷 289-299页

作者： Hiroshi Ishibashi Seigo Minamide ichiro Takeuchi Graduate School of Agriculture Ehime UniversityMatsuyamaEhime 790-8566Japan Center of Advanced Technology for the Environment Graduate School of AgricultureEhime UniversityMatsuyamaEhime 790-8566Japan

Diuron is one of the most frequently applied herbicides in sugarcane farming in southern Japan,and *** addition,it is used as a booster substance in copper-based antifouling *** to these various uses,Diuron is released into the marine environment;however,little information is available on gene expression in corals and their symbiotic algae exposed to *** investigated the efects of Diuron on stress-responsive gene expression in the hermatypic coral Acropora tenuis and its symbiotic *** seven days of exposure to 1µg/L and 10µg/L Diuron,no signifcant changes in the body colour of corals were ***,quantitative reverse transcription-polymerase chain reaction analyses revealed that the expression levels of stress-responsive genes,such as heat shock protein 90(HSP90),HSP70,and calreticulin(CALR),were signifcantly downregulated in corals exposed to 10µg/L of Diuron for seven ***,aquaglyceroporin was signifcantly downregulated in corals exposed to environmentally relevant concentrations of 1µg/L *** contrast,no such efects were observed on the expression levels of other stress-responsive genes,such as oxidative stress-responsive proteins,methionine adenosyltransferase,and green/red fuorescent *** exposure had no signifcant efect on the expression levels of HSP90,HSP70,or HSP40 in the symbiotic *** results suggest that stress-responsive genes,such as HSPs,respond diferently to Diuron in corals and their symbiotic dinofagellates and that *** HSPs and CALRs may be useful molecular biomarkers for predicting stress responses induced by the herbicide Diuron.

关键词： Acropora tenuis Calreticulin Coral bleaching Diuron Heat shock protein

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