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Acupuncture ameliorates atopic dermatitis by modulating gut barrier function in a gut microbiota-dependent manner in mice

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Journal of Integrative Medicine 2024年第5期22卷 600-613页

作者： Mijung Yeom Sora Ahn Dae-Hyun Hahm Sun-Young jang Se hoon jang Su-Yang Park Jae-Hwan jang Jihan Park Ju-Young Oh In-Seon Lee Kyuseok Kim Soon-Kyeong Kwon Hi-Joon Park Acupuncture and Meridian Science Research Center College of Korean MedicineKyung Hee UniversitySeoul 02447Republic of Korea Department of Physiology School of MedicineKyung Hee UniversitySeoul 02447Republic of Korea BioNanocomposite Research Center Kyung Hee UniversitySeoul 02447Republic of Korea Department of Science in Korean Medicine College of Korean MedicineGraduate SchoolKyung Hee UniversitySeoul 02447Republic of Korea College of Korean Medicine Kyung Hee UniversitySeoul 02447Republic of Korea Department of Ophthalmology Otorhinolaryngology and Dermatology of Korean MedicineCollege of Korean MedicineKyung Hee UniversitySeoul 02447Republic of Korea Division of Applied Life Science(BK21) Gyeongsang National UniversityJinju 52828Republic of Korea Department of Anatomy&Information Sciences College of Korean MedicineKyung Hee UniversitySeoul 02447Republic of Korea

Objective Atopic dermatitis(AD)is a chronic inflammatory skin disease that may be linked to changes in the gut *** has been proven to be effective in reducing AD symptoms without serious adverse events,but its underlying mechanism is not completely *** purpose of this study was to investigate whether the potential effect of acupuncture on AD is gut *** AD-like skin lesions were induced by applying MC903 topically to the cheek of the *** was done at the Gok-Ji(LI11)***-like symptoms were assessed by lesion scores,scratching behavior,and histopathological changes;intestinal barrier function was measured by fecal output,serum lipopolysaccharide levels,histopathological changes,and mRNA expression of markers involved in intestinal permeability and *** microbiota was profiled using 16S rRNA gene sequencing from fecal *** Acupuncture effectively improved chronic itch as well as the AD-like skin lesions with epidermal thickening,and also significantly altered gut microbiota structure as revealed byβ-diversity indices and analysis of *** beneficial effects were eliminated by antibiotic depletion of gut microbiota,but were reproduced in gut microbiota-depleted mice that received a fecal microbiota transplant from acupuncture-treated ***,AD mice had intestinal barrier dysfunction as indicated by increased intestinal permeability,atrophy of the mucosal structure(reduced villus height and crypt depth),decreased expression of tight junctions and mucus synthesis genes,and increased expression of inflammatory mediators in the *** attenuated these abnormalities,which was gut *** Acupuncture ameliorates AD-like phenotypes in a gut microbiota-dependent manner and some of these positive benefits are explained by modulation of the intestinal barrier,providing new perspective for non-pharmacological strategies for

关键词： Atopic dermatitis Acupuncture Gut microbiota Intestinal barrier function

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Lower risk of subarachnoid haemorrhage in diabetes:a nationwide population-based cohort study

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Stroke & Vascular Neurology 2021年第3期6卷 402-409页

作者： jang hoon Kim Jimin Jeon Jinkwon Kim Department of Neurosurgery Yongin Severance HospitalYonsei University College of MedicineSeoulSouth Korea Department of Neurology Yongin Severance HospitalYonsei University College of MedicineSeoulSouth Korea

Background and purpose Diabetes mellitus(DM)is a common metabolic disorder with increased risk of cardiovascular and cerebrovascular ***,its relationship with risk of subarachnoid haemorrhage(SAH),the most devastating form of stroke,remains *** To evaluate the relationship between DM and risk of SAH,we performed a retrospective cohort study using a nationwide,population‐based,health screening database in *** included participants without history of stroke who underwent a nationwide health screening programme between 2003 and *** outcome was occurrence of *** were followed up until development of SAH or December *** Cox proportional hazards regression analysis was performed with adjustments for age,sex,systolic blood pressure,total cholesterol,body mass index,physical activity,smoking status,alcohol habit,household income and treatment with antihypertensive agents and *** Among 421768 study participants,prevalence of DM was 9.6%.During a mean follow-up period of 11.6±1.9 years,1039 patients developed *** of DM was significantly associated with decreased risk of SAH(adjusted HR 0.68;95%CI 0.53 to 0.86;p<0.001).Elevated level of fasting blood glucose was also negatively associated with risk of SAH(adjusted HR per 1 mmol/L increase 0.90;95%CI 0.86 to 0.95;p<0.001).Conclusion DM and elevated level of fasting blood glucose were inversely associated with risk of *** studies may elucidate the possibly protective,pathophysiological role played by hyperglycaemia in patients at risk of SAH.

关键词： protective nationwide elevated

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Three-dimensional imaging of spatio-temporal dynamics of small blood capillary network in the cortex based on optical coherence tomography:A review

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Journal of Innovative Optical Health Sciences 2020年第1期3卷 97-112页

作者： Fangjian Xing jang-hoon Lee Collin Polucha Jonghwan Lee Jiangsu Key Laboratory for Opto-Electronic Technology School of Physics and Technology Nanjing Normal University Nanjing 210023P.R.China Center for Biomedical Engineering School of Engineering Brown University ProvidenceRhode IslandUSA Carney Institute for Brain Science Brown University ProvidenceRI 02906USA

Optical coherence tomography angiography(OCTA)has emerged as an advanced in vivo im-aging modality,which is widely used for the clinic ophthalmology and neuroscience research in the rodent brain cortex among *** on the high numerical aperture(NA)probing lens and the motion-corrected algorithms,a high-resolution imaging technique called OCT micro-angiography is applied to resolve the small blood capillary vessels ranging from 5μm to 10μm in *** OCT-based techniques are recently evolving further from the structural imaging of capillaries toward spatio-temporal dynamic imaging of blood flow in capillaries,here we present a review on the latest techniques for the dynamic flow *** on capillary blood flow using these techniques will help us better understand the roles of capillary blood flow for normal functioning of the brain as well as how it malfunctions in diseases.

关键词： Capillary vessel dynamics blood flow OCT angiography brain cortex micro-angiogram

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Effect of natural extract eye drops in dry eye disease rats

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International Journal of Ophthalmology(English edition) 2020年第7期13卷 1023-1030页

作者： Soo Youn Choi Youngsub Eom Jee Yong Kim Dong hoon jang Jong Suk Song Hyo Myung Kim Department of Ophthalmology Korea University College of MedicineSeoul 02841Republic of Korea BGN World Tower Eye Clinic Seoul 05551Republic of Korea Department of Ophthalmology Korea University Ansan HospitalKorea University College of MedicineGyeonggi-do 15355Republic of Korea Medical O Co. Ltd.Seoul 06025Republic of Korea

AIM:To investigate the therapeutic effect of natural extract eye drops containing bee venom,musk,and deer antlers in dry eye disease(DED)animal ***:Scopolamine-injected DED rats and lacrimal gland-excised rats were allocated into control,saline,and natural extract groups respectively and a normal group(lacrimal gland excision was not performed)in lacrimal gland-excised *** eye drop instillation 4 times a day for 5 d,corneal fluorescein staining(CFS)scores,tear MUC5AC levels,and tear lactic dehydrogenase(LDH)levels were ***:In scopolamine-injected rats,the natural extract-treated group had significantly lower CFS scores(1.7±0.5,4.7±1.4,3.8±1.9,P=0.006)and tear LDH levels(0.10±0.01,0.19±0.01,0.16±0.08 OD,P=0.014)but higher tear MUC5AC levels(12.9±3.7,7.9±2.0,9.7±3.6 ng/m L,P=0.041)compared with the control and saline-treated *** were no significant differences between the control and saline-treated *** lacrimal gland-excised rats,the natural extract-treated group also had lower CFS scores(4.3±1.2,11.5±2.3,9.0±1.9,P<0.001,P=0.001)and tear LDH levels(0.30±0.08,0.48±0.12,0.39±0.05 OD,P<0.05)but higher tear volume(4.3±0.9,1.9±0.7,2.8±1.1 mm,P=0.005,P=0.124)and tear MUC5 AC levels(8.2±2.0,2.9±1.2,5.4±2.2 ng/m L,P<0.001,P=0.047)compared with the control and saline-treated *** were no significant differences in the CFS scores,tear MUC5AC level,and tear LDH level between the normal and natural extracttreated ***:The natural extract consisting of bee venom,musk,and deer antlers may have effectiveness in DED treatment by restoring the damaged ocular surface,increasing tear volume,and recovering the tear mucin layer in DED rats.

关键词： bee venom musk deer antler natural extract dry eye disease rat

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Identifying and Verifying Vulnerabilities through PLC Network Protocol and Memory Structure Analysis

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Computers, Materials & Continua 2020年第10期65卷 53-67页

作者： Joo-Chan Lee Hyun-Pyo Choi jang-hoon Kim Jun-Won Kim Da-Un Jung Ji-Ho Shin Jung-Taek Seo Department of Information Security Engineering Soonchunhyang UniversityAsan31538Korea

Cyberattacks on the Industrial Control System(ICS)have recently been increasing,made more intelligent by advancing *** such,cybersecurity for such systems is attracting *** a core element of control devices,the Programmable Logic Controller(PLC)in an ICS carries out on-site control over the ICS.A cyberattack on the PLC will cause damages on the overall ICS,with Stuxnet and Duqu as the most representative ***,cybersecurity for PLCs is considered essential,and many researchers carry out a variety of analyses on the vulnerabilities of PLCs as part of preemptive efforts against *** this study,a vulnerability analysis was conducted on the XGB *** vulnerabilities were identified by analyzing the network protocols and memory structure of PLCs and were utilized to launch replay attack,memory modulation attack,and FTP/Web service account theft for the verification of the *** on the results,the attacks were proven to be able to cause the PLC to malfunction and disable it,and the identified vulnerabilities were defined.

关键词： Industrial control system programmable logic controller cybersecurity network protocol vulnerability

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Self-supported VO_(2)on polydopamine-derived pyroprotein-based fibers for ultrastable and flexible aqueous zinc-ion batteries

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Carbon Energy 2024年第7期6卷 1-13页

作者： Jeong Seok Yeon Sul Ki Park Shinik Kim Santosh VMohite Won Il Kim Gun jang Hyun-Seok jang Jiyoung Bae Sang Moon Lee Won GHong Byung hoon Kim Yeonho Kim Ho Seok Park School of Chemical Engineering College of EngineeringSungkyunkwan UniversityGyeonggi-doRepublic of Korea Department of Engineering University of CambridgeCambridgeUK Department of Applied Chemistry Konkuk UniversityChungjuRepublic of Korea Department of Chemistry Ulsan National Institute of Science and Technology(UNIST)College of Natural SciencesUlsanRepublic of Korea Department of Physics Incheon National UniversityIncheonRepublic of Korea Intelligent Sensor Convergence Research Center Incheon National UniversityIncheonRepublic of Korea Institute of Basic Science Incheon National UniversityIncheonRepublic of Korea Division of Material Analysis and Research Korea Basic Science InstituteDaejeonRepublic of Korea

A conventional electrode composite for rechargeable zinc-ion batteries(ZIBs)includes a binder for strong adhesion between the electrode material and the current ***,the introduction of a binder leads to electrochemical inactivity and low electrical conductivity,resulting in the decay of the capacity and a low rate *** present a binder-and conducting agent-free VO_(2)composite electrode using in situ polymerization of dopamine on a flexible current collector of pyroprotein-based *** as-fabricated composite electrode was used as a substrate for the direct growth of VO_(2)as a self-supported form on polydopamine-derived pyroprotein-based fibers(pp-fibers@VO_(2)(B)).It has a high conductivity and flexible nature as a current collector and moderate binding without conventional binders and conducting agents for the VO_(2)(B)*** addition,their electrochemical mechanism was *** energy storage is induced by Zn^(2+)/H^(+)coinsertion during discharging,which can be confirmed by the lattice expansion,the formation of by-products including Zn_(x)(OTf)_(y)(OH)_(2x−y)·nH_(2)O,and the reduction of V^(4+)to V^(3+).Furthermore,the assembled Zn//pp-fibers@VO_(2)(B)pouch cells have excellent flexibility and stable electrochemical performance under various bending states,showing application possibilities for portable and wearable power sources.

关键词： aqueous battery binder free conducting agent‐free flexible electrode zinc‐ion battery

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Artificial optoelectronic synapse based on spatiotemporal irradiation to source-sharing circuitry of synaptic phototransistors

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InfoMat 2024年第2期6卷 131-141页

作者： Seungho Song Changsoon Choi Jongtae Ahn Je-Jun Lee Jisu jang Byoung-Soo Yu Jung Pyo Hong Yong-Sang Ryu Yong-hoon Kim Do Kyung Hwang Center for Opto-Electronic Materials and Devices Post-Silicon Semiconductor InstituteKorea Institute of Science and Technology(KIST)SeoulRepublic of Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Center for Spintronics Post-Silicon Semiconductor InstituteKorea Institute of Science and Technology(KIST)SeoulRepublic of Korea Division of Nanoscience&Technology KIST SchoolUniversity of Science and Technology(UST)SeoulRepublic of Korea School of Biomedical Engineering Korea UniversitySeoulRepublic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulRepublic of Korea

To overcome the intrinsic inefficiency of the von Neumann architecture,neuromorphic devices that perform analog vector–matrix multiplication have been highlighted for achieving power-and time-efficient data *** particular,artificial synapses,of which conductance should be programmed to represent the synaptic weights of the artificial neural network,have been intensively researched to realize neuromorphic ***,inspired by excitatory and inhibitory synapses,we develop an artificial optoelectronic synapse that shows both potentiation and depression characteristics triggered only by optical *** design of the artificial optoelectronic synapse,in which excitatory and inhibitory synaptic phototransistors are serially connected,enables these characteristics by spatiotemporally irradiating the phototransistor channels with optical ***,a negative synaptic weight can be realized without the need for electronic components such as *** such attributes,the artificial optoelectronic synapse is demonstrated to classify three digits with a high recognition rate(98.3%)and perform image preprocessing via analog vector-matrix multiplication.

关键词： amorphous oxide semiconductor analog processing artificial synapse neuromorphic optoelectronics

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Solid fusion after lumbosacral arthroplasty

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World Journal of Orthopedics 2013年第3期4卷 157-160页

作者： Sang-hoon jang Ho-Yeon Lee Ji-Young Cho Sang-Ho Lee Department of Neurosurgery Wooridul Spine HospitalSeoul 135-100South Korea

A 55-year-old female was diagnosed with L5-S1 degenerative disc disease(DDD). Initial scores by the visual analogue scale(VAS) were 5(back) and 9(leg) and the Oswestry disability index(ODI) was 32. Arthroplasty was performed. Clinical and radiographic monitoring took place thereafter at one month, three months, six months and annually. At one month, VAS scores were 2(back) and 3(leg), ODI was 12 and ROM was 2.1° by radiographs. At two years, VAS scores were 1(back) and 2(leg), ODI was 6 and ROM was approaching 0. Five years after surgery, the entire operated segment(L5-S1) was solidly fused. A malpositioned disc implant may impair normal spinal movement, culminating in heterotopic ossification or complete fusion of the operated segment.

关键词： Total disc replacement Lumbar spine Heterotopic ossification Fusion,Arthroplasty Solid fusion

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Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro Letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong Shin Dong‑Je Kim Tae‑Min jang Won Bae Han Joong hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon Lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min Suk‑Won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCL),that contains excellent material properties including high elongation-at-break(<1300%),resilience and toughness,and tunable dissolution *** of PGCLs as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

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Functionally graded structure of a nitride-strengthened Mg_(2)Si-based hybrid composite

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Journal of Magnesium and Alloys 2024年第3期12卷 1239-1256页

作者： Jeongho Yang Woongbeom Heogh Hogi Ju Sukhyun Kang Tae-Sik jang Hyun-Do Jung Mohammad Jahazi Seung Chul Han Seong Je Park Hyoung Seop Kim Susmita Bose Amit Bandyopadhyay Martin Byung-Guk Jun Young Won Kim Dae-kyeom Kim Rigoberto CAdvincula Clodualdo Aranas Jr Sang hoon Kim School of Mechanical Engineering Pusan National UniversityBusan 46241Republic of Korea Department of Mechanical Design Engineering Hanyang UniversitySeoul 04763Republic of Korea Process Research 3 Team LG Display Co.Ltd.PajuGyeonggi-do 10845Republic of Korea Department of Materials Science and Engineering Chosun UniversityGwangju 61452Republic of Korea Institute of Well-Aging Medicare&Chosun University LAMP Center Chosun UniversityGwangju 61452Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Mechanical Engineering École de Technologie SupérieureMontrealQuebec H3C 1K3Canada Material&Component Convergence R&D Center Korea Construction Equipment Technology InstituteGunsanJeollabuk-do 54002Republic of Korea School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Graduate Institute of Ferrous&Eco Materials Technology Pohang University of Science and TechnologyPohangGyeongsangbuk-do 37673Republic of Korea Advanced Institute for Materials Research Tohoku UniversitySendai 980-8577Japan Institute for Convergence Research and Education in Advanced Technology Yonsei UniversitySeoul 03722Republic of Korea School of Mechanical and Materials Engineering Washington State UniversityPullmanWashington 99164USA School of Mechanical Engineering Purdue UniversityWest LafayetteIndiana 47907USA Research Institute of Advanced Manufacturing Technology Korea Institute of Industrial TechnologyIncheon 21999Republic of Korea Department of Macromolecular Science and Engineering Case Western Reserve UniversityClevelandOhio 44106USA Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials University of TennesseeKnoxvilleTennessee 37996USA Center for Nanophase Materials and Sciences Oak Ridge National LaboratoryOak RidgeTennessee 37830USA Department of Mechanical Engineering University of New BrunswickFrederictonNew Brunswick E3B 5A3Cana

The ex-situ incorporation of the secondary SiC reinforcement,along with the in-situ incorporation of the tertiary and quaternary Mg_(3)N_(2) and Si_(3)N_(4) phases,in the primary matrix of Mg_(2)Si is employed in order to provide ultimate wear resistance based on the laser-irradiation-induced inclusion of N_(2) gas during laser powder bed *** is substantialized based on both the thermal diffusion-and chemical reactionbased metallurgy of the Mg_(2)Si–SiC/nitride hybrid *** study also proposes a functional platform for systematically modulating a functionally graded structure and modeling build-direction-dependent architectonics during additive *** strategy enables the development of a compositional gradient from the center to the edge of each melt pool of the Mg_(2)Si–SiC/nitride hybrid ***,the coefficient of friction of the hybrid composite exhibits a 309.3%decrease to–1.67 compared to–0.54 for the conventional nonreinforced Mg_(2)Si structure,while the tensile strength exhibits a 171.3%increase to 831.5 MPa compared to 485.3 MPa for the conventional *** outstanding mechanical behavior is due to the(1)the complementary and synergistic reinforcement effects of the SiC and nitride compounds,each of which possesses an intrinsically high hardness,and(2)the strong adhesion of these compounds to the Mg_(2)Si matrix despite their small sizes and low concentrations.

关键词： Laser powder bed fusion Mg_(2)Si-SiC/nitride hybrid composite Both the thermal diffusion-and chemical reaction-based metallurgy Functionally graded structure Compositional gradient Wear resistance.

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