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Neuroscience Bulletin 2022年第4期38卷 373-385页

作者： Seong-Ah Kim jun ho jang Wheedong Kim Pa Reum Lee Yong ho Kim Hue Vang Kihwan Lee Seog Bae Oh Department of Neurobiology and Physiology School of Dentistry and Dental Research InstituteSeoul National UniversitySeoul 03080Republic of Korea Department of Brain and Cognitive Sciences College of Natural SciencesSeoul National UniversitySeoul 08826Republic of Korea Gachon Pain Center and Department of Physiology College of MedicineGachon UniversityIncheon 21999Republic of Korea Tooth-Periodontium Complex Medical Research Center School of DentistrySeoul National UniversitySeoul 03080Republic of Korea

Mitochondrial reactive oxygen species(mROS)that are overproduced by mitochondrial dysfunction are linked to pathological conditions including sensory ***,we explored whether mROS overproduction induces itch through transient receptor potential canonical 3(TRPC3),which is sensitive to *** injection of antimycin A(AA),a selective inhibitor of mitochondrial electron transport chain complex III for mROS overproduction,produced robust scratching behavior in naïve mice,which was suppressed by MitoTEMPO,a mitochondria-selective ROS scavenger,and Pyr10,a TRPC3-specific blocker,but not by blockers of TRPA1 or *** activated subsets of trigeminal ganglion neurons and also induced inward currents,which were blocked by MitoTEMPO and ***,dry skin-induced chronic scratching was relieved by MitoTEMPO and Pyr10,and also by resveratrol,an *** together,our results suggest that mROS elicit itch through TRPC3,which may underlie chronic itch,representing a potential therapeutic target for chronic itch.

关键词： Mitochondria Reactive oxygen species TRPC3 Itch Dry skin Trigeminal ganglia

Impact of high-resolution HLA matching on outcomes of unrelated donor hematopoietic stem cell transplantation

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Impact of high-resolution HLA matching on outcomes of unrela...

Central post-stroke pain due to injury of the spinothalamic tract in patients with cerebral infarction： a diffusion tensor tractography imaging study

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作者： Seok Yun Kang Hyun Woo Lee jun ho jang Joon Seong Park Jin Hyuk Choi ho Young Lim Hugh Chul Kim Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea

＜正＞Objective: We assessed the impact of high-resolution genotypic results of human leukocyte antigen （HLA） for all major class Ⅰand Ⅱloci between donors and recipients in the outcome of unrelated hematopoietic stem cell transplantation （HSCT）. Method: Between 1999 and 2005, high-resolution genotyping for HLA-A, -B, -C and -DRB1 was performed for 23 unrelated HSCT. All the patients were typed as HLA identical by serologic technique and then they were also typed HLA identical by high resolution technique. Unrelated bone marrow

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Neural Regeneration Research 2017年第12期12卷 2021-2024页

作者： Sung ho jang jun Lee Sang Seok Yeo Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Namku Daegu Republic of Korea Department of Neurology College of Medicine Yeungnam University Namku Daegu Republic of Korea Department of Physical Therapy College of Health Sciences Dankook University Chungnam Republic of Korea

Many studies using diffusion tensor tractography（DTT） have demonstrated that injury of the spinothalamic tract（STT） is the pathogenetic mechanism of central post-stroke pain（CPSP） in intracerebral hemorrhage; however, there is no DTT study reporting the pathogenetic mechanism of CPSP in cerebral infarction. In this study, we investigated injury of the STT in patients with CPSP following cerebral infarction, using DTT. Five patients with CPSP following cerebral infarction and eight age-and sex-matched healthy control subjects were recruited for this study. STT was examined using DTT. Among DTT parameters of the affected STT, fractional anisotropy and tract volume were decreased by more than two standard deviations in two patients（patients 1 and 2） and three patients（patients 3, 4, and 5）, respectively, compared with those of the control subjects, while mean diffusivity value was increased by more than two standard deviations in one patient（patient 2）. Regarding DTT configuration, all affected STTs passed through adjacent part of the infarct and three STTs showed narrowing. These findings suggest that injury of the STT might be a pathogenetic etiology of CPSP in patients with cerebral infarction.

关键词： nerve regeneration central post-stroke pain cerebral infarction spinothalamic tract diffusion tensorimaging neural regeneration

Endothelial progenitor cell differentiation using cryopreserved,umbilical cord blood-derived mononuclear cells

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Acta Pharmacologica Sinica 2007年第3期28卷 367-374页

作者： jun-ho jang~(2,5) Sun-kyung KIM~(3,5) Jeong-eun ChoI~3 Young-jin KIM~3 Hyun-woo LEE~2 Seok-yun KANG~2 Joon-seong PARK~2 Jin-hyuk ChoI~2 ho-yeong LIM~4 Hugh C KIM~(2,6)2 Department of Hematalogy-Oncology,Ajou University,School of Medicine,Suwon 442749,Korea 3 Biomedical Research Institute,LifeCord,Suwon 442749,Korea 4 Division of Hematology-Ontology,Department of Medicine,Samsung Medical Center,Sungkyunkwan University School of Medicine,Seoul 135710,Korea DepartmentofHematology-Oncology AjouUniversitySchoolofMedicineSuwon442749Korea BiomedicalResearchInstitute LifeCordSuwon442749Korea SamsungMedicalCenter SungkyunkwanUniversitySchoolofMedicineSeoul135710Korea

Aim:To investigate the endothelial differentiation potentiality of umbilical cordblood(UCB),we induced the differentiation of endothelial progenitor cells(EPC)from cryopreserved UCB-derived mononuclear cells(MNC).Methods:MNC fromcryopreserved UCB and peripheral blood(PB)were cultured in M199 medium withendothelial cell growth supplements for 14 *** were characterized by RT-PCR,flow cytometry,and immunocytochemistry *** proliferation of differen-tiated EPC was studied by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazoliumbromide(MTT)assay,and vascular endothelial growth factor(VEGF)concentra-tion was measured using an ELISA *** of UCB-derived EPC werecompared with those of PB-derived ***:A number of round-shapedcells were loosely attached to the bottom after 24 h culture,and numerous spindle-shaped cells began to appear from the round-shaped ones on d *** cellsexpressed endothelial markers such as,Flt-1/VEGFR-1,ecNOS,VE-cadherin,vonWillebrand factor,and secreted VEGE The patterns of endothelial markers of EPCfrom PB and UCB did not show striking *** results of the prolifera-tion and secretion of VEGF were also ***:We successfully cul-tured UCB cells stored at -196℃ into cells with the quality of endothelial *** EPC could be used for angiogenic therapeutics by activating adjacentendothelial cells and enhancing angiogenesis.

关键词： cord blood endothelial cells cryopreserved

Reduced graphene oxide-based materials for electrochemical energy conversion reactions

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Carbon Energy 2019年第1期1卷 85-108页

作者： Seokhoon Choi Changyeon Kim jun Min Suh ho Won jang Department of Materials Science and Engineering Seoul National UniversitySeoulRepublic of Korea

There have been ever-growing demands to develop advanced electrocatalysts for renewable energy conversion over the past *** a promising platform for advanced electrocatalysts,reduced graphene oxide(rGO)has attracted substantial research interests in a variety of electrochemical energy conversion *** versatile utility is mainly attributed to unique physical and chemical properties,such as high specific surface area,tunable electronic structure,and the feasibility of structural modification and ***,a comprehensive discussion is provided upon recent advances in the material preparation,characterization,and the catalytic activity of rGO-based electrocatalysts for various electrochemical energy conversion reactions(water splitting,CO2 reduction reaction,N2 reduction reaction,and O2 reduction reaction).Major advantages of rGO and the related challenges for enhancing their catalytic performance are addressed.

关键词： CO2 reduction reaction electrocatalysis N2 reduction reaction O2 reduction reaction reduced graphene oxide water splitting

Catalysts for electrochemical ammonia oxidation:Trend,challenge,and promise

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Science China Materials 2022年第12期65卷 3334-3352页

作者： Sol A Lee Mi Gyoung Lee ho Won jang Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Electrical and Computer Engineering University of TorontoToronto M5S 3G4OntarioCanada Advanced Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea

Developing sustainable and clean energy technology is critial to address the current energy and environmental *** an energy carrier,hydrogen has been getting attention due to its abundance,high energy density,and zero carbon *** to the difficulty of hydrogen storage and transport,the electro-oxidation of ammonia shows great potential for renewable energy since it satisfies both energy supply and environmental protection as a carbon-free fuel with high hydrogen ***,ammonia electro-oxidation is a sluggish reaction and shows low *** the complicated mechanism and intermediates is conducive to developing efficient electrocatalysts with high catalytic activity and *** review begins with the ammonia oxidation technologies and their *** two typical mechanisms for ammonia electro-oxidation,Oswin-Salomon mechanism and Gerischer-Mauerer mechanism,are discussed,and attention to the poisoning species is ***,the electrocatalysts for ammonia reaction are classified into Pt-based catalysts and non-noble metal-based catalysts,and their performances are reviewed with various *** on the progress on the electrochemical ammonia oxidation catalysts,the challenges and future insight on ammonia oxidation reaction are discussed and proposed.

关键词： NH3 oxidation reaction electrocatalysts green hydrogen

Neuroimaging characterization of recovery of impaired consciousness in patients with disorders of consciousness

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Neural Regeneration Research 2019年第7期14卷 1202-1207页

作者： Sung ho jang Young Hyeon Kwon Department of Physical Medicine and Rehabilitation College of MedicineYeungnam University

Elucidation of critical brain areas or structures that are responsible for recovery of impaired consciousness in patients with disorders of consciousness is important because it can provide information that is useful when developing therapeutic strategies for neurorehabilitation or neurointervention in patients with disorders of *** this review,studies that have demonstrated brain changes during recovery of impaired consciousness were *** studies used positron emission tomography,electroencephalography/transcranial magnetic stimulation,diffusion tensor tractography,and diffusion tensor tractography/*** majority of these studies reported on the importance of supratentorial areas or structures in the recovery of impaired *** important brain areas or structures that were identified were the prefrontal cortex,basal forebrain,anterior cingulate cortex,and parietal *** results have a clinically important implication that these brain areas or structures can be target areas for neurorehabilitation or neurointervention in patients with disorders of ***,most of studies were case reports;therefore,further original studies involving larger numbers of patients with disorders of consciousness are *** addition,more detailed information on the brain areas or structures that are relevant to the recovery of impaired consciousness is needed.

关键词： consciousness vegetative state minimally conscious state ascending reticular activating system diffusion tensor imaging neuroimaging neural regeneration review

Delayed activation of leg somatotopic fibers of an injured corticospinal tract in a patient with cerebral infarction

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Neural Regeneration Research 2022年第11期17卷 2551-2552页

作者： Min Jye Cho Sung ho jang Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea

Stroke is a leading cause of major adult disabilities,and motor weakness is one of the most serious disability-related sequelae of *** of the motor recovery in stroke patients is reported to occur within 6months after stroke onset,and this period is deemed critical for motor recovery in stroke(Grefkes and Fink,2020;Olafson et al.,2021).

关键词： cerebral infarction

Traumatic axonal injury of the cingulum in patients with mild traumatic brain injury: a diffusion tensor tractography study

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Neural Regeneration Research 2019年第9期14卷 1556-1561页

作者： Sung ho jang Seong ho Kim Han Do Lee Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea Department of Neurosurgery College of MedicineYeungnam UniversityNamkuDaeguRepublic of Korea

The cingulum,connecting the orbitofrontal cortex to the medial temporal lobe,involves in diverse cognition functions including attention,memory,and *** investigate the relationship between the cingulum injury and cognitive impairment in patients with chronic mild traumatic brain injury,we evaluated the integrity between the anterior cingulum and the basal forebrain using diffusion tensor tractography in 73 patients with chronic mild traumatic brain injury(39 males,34 females,age 43.29±11.42 years)and 40 healthy controls(22 males,18 females,age 40.11±16.81 years).The patients were divided into three subgroups based on the integrity between the anterior cingulum and the basal forebrain on diffusion tensor tractography:subgroup A(n=19 patients)– both sides of the anterior cingulum were intact;subgroup B(n=36 patients)– either side of the anterior cingulum was intact;and subgroup C(18 patients)– both sides of the anterior cingulum were *** were significant differences in total Memory Assessment Scale score between subgroups A and B and between subgroups A and *** were no significant differences in diffusion tensor tractography parameters(fractional anisotropy,apparent diffusion coefficient,and fiber volume)between patients and *** findings suggest that the integrity between the anterior cingulum and the basal forebrain,but not diffusion tensor tractography parameter,can be used to predict the cognitive function of patients with chronic mild traumatic brain *** study was approved by Yeungnam University hospital Institutional Review Board(approval ***-2014-01-425-010)on August 16,2017.

关键词： mild traumatic brain injury brain trauma diffusion tensor tractography diffusion tensor imaging cognitive impairment cingulum memory Glasgow Coma Scale neural regeneration

Diffusion tensor tractography characteristics of axonal injury in concussion/mild traumatic brain injury

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Neural Regeneration Research 2022年第5期17卷 978-982页

作者： Sung ho jang You Sung Seo Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaeguRepublic of Korea

The main advantage of diffusion tensor tractography is that it allows the entire neural tract to be *** addition,configurational analysis of reconstructed neural tracts can indicate abnormalities such as tearing,narrowing,or discontinuations,which have been used to identify axonal injury of neural tracts in concussion *** review focuses on the characteristic features of axonal injury in concussion or mild traumatic brain injury(m TBI)patients through the use of diffusion tensor *** injury in concussion(m TBI)patients is characterized by their occurrence in long neural tracts and multiple injuries,and these characteristics are common in patients with diffuse axonal injury and in concussion(m TBI)patients with axonal ***,the discontinuation of the corticospinal tract is mostly observed in diffuse axonal injury,and partial tearing and narrowing in the subcortical white matter are frequently observed in concussion(m TBI)patients with axonal *** difference appears to be attributed to the observation that axonal injury in concussion(m TBI)patients is the result of weaker forces than those producing diffuse axonal *** addition,regarding the fornix,in diffuse axonal injury,discontinuation of the fornical crus has been frequently reported,but in concussion(m TBI)patients,many collateral branches form in the fornix in addition to these findings in many case *** is presumed that the impact on the brain in TBI is relatively weaker than that in diffuse axonal injury,and that the formation of collateral branches occurs during the fornix recovery *** the occurrence of axonal injury in multiple areas of the brain is an important feature of diffuse axonal injury,case studies in concussion(m TBI)have shown that axonal injury occurs in multiple neural *** axonal injury lesions in m TBI patients may persist for approximately 10 years after injury onset,the characteristics of axonal injury in co

关键词： axonal injury brain injury concussion diffusion tensor imaging diffusion tensor tractography mild traumatic brain injury neural tract