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Effects of mesenchymal stem cell on dopaminergic neurons,motor and memory functions in animal models of Parkinson's disease:a systematic review and meta-analysis

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Neural Regeneration Research 2024年第7期19卷 1584-1592页

作者： Jong Mi Park Masoud Rahmati sang chul lee Jae Il Shin Yong Wook Kim Department and Research Institute of Rehabilitation Medicine Yonsei University College of MedicineSeoulSouth Korea Department of Physical Education and Sport Sciences Faculty of Literature and Human SciencesLorestan UniversityKhoramabadIran Department of Pediatrics Yonsei University College of MedicineSeoulSouth Korea

Parkinson’s disease is chara cterized by the loss of dopaminergic neurons in the substantia nigra pars com pacta,and although restoring striatal dopamine levels may improve symptoms,no treatment can cure or reve rse the disease *** cell therapy has a regenerative effect and is being actively studied as a candidate for the treatment of Parkinson’s *** stem cells are considered a promising option due to fewer ethical concerns,a lower risk of immune rejection,and a lower risk of *** performed a meta-analysis to evaluate the therapeutic effects of mesenchymal stem cells and their derivatives on motor function,memory,and preservation of dopamine rgic neurons in a Parkinson’s disease animal *** searched bibliographic databases(PubMed/MEDLINE,Embase,CENTRAL,Scopus,and Web of Science)to identify articles and included only pee r-reviewed in vivo interve ntional animal studies published in any language through J une 28,*** study utilized the random-effect model to estimate the 95%confidence intervals(CI)of the standard mean differences(SMD)between the treatment and control *** use the systematic review center for laboratory animal expe rimentation’s risk of bias tool and the collaborative approach to meta-analysis and review of animal studies checklist for study quality assessment.A total of 33studies with data from 840 Parkinson’s disease model animals were included in the *** with mesenchymal stem cells significantly improved motor function as assessed by the amphetamine-induced rotational *** the stem cell types,the bone marrow MSCs with neurotrophic factor group showed la rgest effect size(SMD[95%CI]=-6.21[-9.50 to-2.93],P=0.0001,I^(2)=0.0%).The stem cell treatment group had significantly more tyrosine hydroxylase positive dopamine rgic neurons in the striatum([95%CI]=1.04[0.59 to 1.49],P=0.0001,I^(2)=65.1%)and substantia nigra(SMD[95%CI]=1.38[0.89 to 1.87],P=0.0001,I^(2)=75.3%),indicating a

关键词： animal animal experimentation mesenchymal stem cells models Parkinson’s disease stem cell transplantation

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Ionizing terahertz waves with 260 MV/cm from scalable optical rectification

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Light(Science & Applications) 2024年第6期13卷 1075-1087页

作者： Hyeongmun Kim chul Kang Dogeun Jang Yulan Roh sang Hwa lee Joong Wook lee Jae Hee Sung Seong Ku lee Ki-Yong Kim Advanced Photonics Research Institute GISTGwangju61005Korea Department of Physics and Optoelectronics Convergence Research Center Chonnam National UniversityGwangju61186Korea Pohang Accelerator Laboratory POSTECHPohang37673Korea Center for Relativistic Laser Science Institute for Basic ScienceGwangju61005Korea Institute for Research in Electronics and Applied Physics Department of PhysicsUniversity of MarylandCollege ParkMaryland20742USA

Terahertz(THz)waves,known as non-ionizing radiation owing to their low photon energies,can actually ionize atoms and molecules when a sufficiently large number of THz photons are concentrated in time and ***,we demonstrate the generation of ionizing,multicycle,15-THz waves emitted from large-area lithium niobate crystals via phase-matched optical rectification of 150-terawatt laser pulses.A complete characterization of the generated THz waves in energy,pulse duration,and focal spot size shows that the field strength can reach up to 260 megavolts per *** particular,a single-shot THz interferometer is employed to measure the THz pulse duration and spectrum with complementary numerical *** intense THz pulses are irradiated onto various solid targets to demonstrate THz-induced tunneling ionization and plasma *** study also discusses the potential of nonperturbative THz-driven ionization in gases,which will open up new opportunities,including nonlinear and relativistic THz physics in plasma.

关键词： optical interferometer matched

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Difficulties, strategies, and recent research and development of layered sodium transition metal oxide cathode materials for high-energy sodium-ion batteries

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Journal of Energy Chemistry 2024年第3期90卷 40-57,I0003页

作者： Kouthaman Mathiyalagan Dongwoo Shin Young-chul lee Department of Nano Science and Technology Convergence Gachon University1342 Seongnam-DaeroSujeong-GuGyeonggi-DoSeongnam-Si 13120Republic of Korea Department of Bio Nano Technology Gachon University1342 Seongnam-DaeroSujeong-GuGyeonggi-DoSeongnam-Si 13120Republic of Korea

Energy-storage systems and their production have attracted significant interest for practical *** are the foundation of sustainable energy sources for electric vehicles(EVs),portable electronic devices(PEDs),*** recent decades,Lithium-ion batteries(LIBs) have been extensively utilized in largescale energy storage devices owing to their long cycle life and high energy ***,the high cost and limited availability of Li are the two main obstacles for *** this regard,sodium-ion batteries(SIBs) are attractive alternatives to LIBs for large-scale energy storage systems because of the abundance and low cost of sodium *** is one of the most important components in the battery,which limits cost and performance of a *** the classified cathode structures,layered structure materials have attracted attention because of their high ionic conductivity,fast diffusion rate,and high specific ***,we present a comprehensive review of the classification of layered structures and the preparation of layered ***,the review article discusses extensively about the issues of the layered materials,namely(1) electrochemical degradation,(2) irreversible structural changes,and(3) structural instability,and also it provides strategies to overcome the issues such as elemental phase composition,a small amount of elemental doping,structural design,and surface alteration for emerging *** addition,the article discusses about the recent research development on layered unary,binary,ternary,quaternary,quinary,and senary-based O3-and P2-type cathode materials for high-energy *** review article provides useful information for the development of high-energy layered sodium transition metal oxide P2 and O3-cathode materials for practical SIBs.

关键词： O3-type P2-type Cathode materials Sodium-ion batteries Layered structure

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Cloning of heat shock protein genes from the brown planthopper, Nilaparvata lugens, and the small brown planthopper, Laodelphax striatellus, and their expression in relation to thermal stress

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Insect Science 2008年第5期15卷 415-422页

作者： Dong Hun Kim sang-chul lee Do-Yeon Kwak Kyeong-Yeoll lee School of Applied Biosciences College of Agricultura and Life Sciences Kyungpook National University Daegu Yeongnam Agricultural Research Institute Milyang Republic of Korea

Three heat shock protein （HSP） genes （hsp70, hsc70, hsp90） were partially cloned from the brown planthopper Nilaparvata lugens and the small brown planthopper Laodelphax striatellus （Homoptera： Delphacidae）, which are serious pests of the rice plant. Sequence comparisons at the deduced amino acid level showed that the three HSPs of planthoppers were most homologous to corresponding HSPs of dipteran and lepidopteran species. Identities of both heat shock cognate 70 and HSP90 were higher than HSP70 in both species. Identity of the HSP70 between the two planthopper species was only 81%, a value much lower than seen among fly and moth groups. Effects of heat and cold shocks were demonstrated on expression of the three hsp genes in the two planthopper species. Heat shock （40 ℃） upregulated the hsp90 level but did not change the hsc70 level in either the nymph and adult stages of either species. On the other hand, the hsp70 level was only upregulated in L. striatellus. This heat shock response was prompt and lasted only for 1 h after treatment. In contrast, cold shock at 4℃ did not change the expression levels of any hsp in either species.

关键词： cold shock gene expression heat shock heat shock protein genes planthoppers thermal stress

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Research on Cavitation Characteristics and Influencing Factors of Herringbone Gear Pump

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 2917-2946页

作者： Jinlong Yang Kwang-Hee lee chul-Hee lee Department of Mechanical Engineering of Inha University Incheon22212South Korea

Cavitation is a common issue in pumps,causing a decrease in pump head,a fall in volumetric efficiency,and an intensification of outlet flow *** is one of the main hazards that affect the regular operation of the *** on pump cavitation mainly focuses on mixed flow pumps,jet pumps,external spur gear pumps,***,there are few cavitation studies on external herringbone gear *** addition,pumps with different working principles significantly differ in the flow and complexity of the internal flow ***,it is urgent to study the cavitation characteristics of external herringbone gear *** with experimentalmethods,visual research and cavitation area identification are achieved through computation fluid dynamic(CFD),and changing the boundary conditions and shape of the gear rotor is *** simulation yields a head error of only 0.003%under different grid numbers,and the deviation between experimental and simulation results is less than 5%.The study revealed that cavitation causes flow pulsation at the outlet,and the cavitation serious area is mainly distributed in the meshing gap and meshing *** can be inhibited by reducing the speed,increasing the inlet pressure,and changing the helix angle can be *** example,when the inlet pressure is 5 bar,the maximumgas volume fraction in themeshing area is less than 50%.These results provide a reference for optimizing the design and finding the optimal design parameters to reduce or eliminate cavitation.

关键词： Herringbone gear pump cavitation rotating speed inlet pressure helix angle TwinMesh

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Overview of single-port laparoscopic surgery for colorectal cancers: Past, present, and the future

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World Journal of Gastroenterology 2014年第4期20卷 997-100页

作者： Say-June Kim Byung-Jo Choi sang chul lee Department of Surgery Daejeon St. Mary’s Hospital the Catholic University of Korea

Single-port laparoscopic surgery(SPLS)is implemented through a tailored minimal single incision through which a number of laparoscopic instruments *** of operation-customized port system,utilization of a camera without a separate external light,and instruments with different lengths has brought the favorable environment for ***,performing SPLS still creates several hardships compared to multiport laparoscopic surgery;a single-port system inevitably leads to clashing of surgical instruments due to *** overcome such difficulties,investigators has developed novel concepts and maneuvers,including the concept of inverse triangulation and the maneuvers of pivoting,spreading out dissection,hanging suture,and transluminal *** final destination of SPLS is expected to be a completely seamless operation,maximizing the minimal *** extraction through the umbilicus can undermine cosmesis by inducing a larger ***,hybrid laparoscopic technique,which combined laparoscopic surgical technique with natural orifice specimen extraction(NOSE)-i.e.,transvaginal or transanal route-,has been *** and NOSE seemed to be the best combination in pursuit of minimal *** the near future,robotic SPLS with natural orifice transluminal endoscopic surgery’s way of specimen extraction seems to be *** is expected to provide a completely or nearly complete seamless operation regardless of location of the lesion in the abdomen.

关键词： Colorectal neoplasms Colectomy Laparoscopy Natural

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Quality of life for primary caregivers of muscular dystrophy patients in South Korea

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Chinese Medical Journal 2010年第4期123卷 452-457页

作者： sang Hee Im sang chul lee Jae Ho Moon Eun Sook Park Yoon Ghil Park Department of Rehabilitation Medicine Jeju National University School of Medicine Jeju & Yonsei University Graduate School Seoul Korea Department of Physical Medicine and Rehabilitation Myongji Hospital Kwandong University College of Medicine Goyang Korea Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease Yonsei University College of Medicine Seoul Korea Department and Research Institute of Rehabilitation Medicine Yonsei University College of Medicine Seoul Korea

Background Although some studies measured the burden of caregivers and the factors that influenced their feelings of burden, few studies have measured the quality of life （QOL） for primary caregivers of patients with muscular dystrophy （MD）. We assessed the QOL for primary caregivers of patients with MD in South Korea and identified factors associated with caregivers＇ QOL. Methods Ninety dyads of patients with MD and their primary caregivers were enrolled in this study. The QOL of caregivers of patients with MD was assessed subjectively using the World Health Organization Quality of Life Assessment, Life Brief Form. Caregivers＇ emotional status was assessed using the Beck Depression Inventory （BDI） and family function level was evaluated using the Family APGAR scale. Patients reported their emotional status using the BDI or the Children＇s Depression Inventory. The functional levels of patients were evaluated by the modified Barthel Index. Results Caregivers＇ QOL was statistically associated with family income, family function, emotional status of patients, level of education, and emotional status of caregivers （P 〈0.05）. Caregivers who were employed had a significantly higher QOL than those who were not （P 〈0.05）. In multiple regression analyses, emotional and employment status of caregivers was strongly associated with caregivers＇ QOL. Conclusion Rehabilitation teams should consider not only the physical factors of patients but also the psychological and demographic factors of primary caregivers of patients with MD.

关键词： caregiver quality of life muscular dystrophy

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Cardiff acne disability index： cross-cultural translation in Korean and its relationship with clinical acne severity, pathological patterns, and general quality of life

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Journal of Traditional Chinese Medicine 2017年第5期37卷 702-709页

作者： Kyeong-Han Kim sang-chul lee Young-Bae Park Young-Jae Park Department of Human Informatics of Korean Medicine Interdisciplinary Programs Kyung Hee University Seoul02447 Korea Department of Business Administration Korea Christian University Seoul07661 Korea Department of Biofunctional Medicine and Diagnostics College of Korean MedicineKyung Hee University Seoul02447 Korea Department of Diagnosis and Biofunctional Medicine Kyung Hee University Hospital at Gangdong Seoul 05278 Korea

OBJECTIVE: To culturally translate the cardiff acne disability index(CADI) into Korean, and to examine its relationship with clinical acne severity,pathological patterns, and general quality of life(Qo L).METHODS: The CADI was culturally and lin-guistically translated into Korean via translation,back-translation, and face validity test process. Two hundred and fifty-four Korean adolescents were asked to complete the Korean version of the CADI(K-CADI), the Phlegm Pattern, the Cold-Heat Pattern, and the Korean version of the General Health Questionnaires. A clinician estimated acne severity for the adolescents, using the Korean Acne Grading System. Finally, reliability and validity of the K-CADI was examined, and the relationships between acne severity, Phlegm, Cold, and Heat patterns, and Qo L level were examined via pathway ***: The K-CADI had satisfactory internal consistency(α = 0.827). The examination of construct validity indicated that the K-CADI had one factor(explaining 59.6% of the total variance). Pathway analysis showed satisfactory model fit(normal fit index = 0.960 and comparative fit index = 0.983),and acne-related Qo L was determinant to Phlegm,Heat, and Cold patterns(0.13-0.27 of β), and Phlegm and Heat patterns lowered one's Qo L level(0.17-0.34 of β).CONCLUSION: The K-CADI is a valid and reliable instrument. Phlegm and Heat patterns should be managed when treating acne since they have a moderating effect on general Qo L aggravation.

关键词：严重程度临床医生生活质量跨文化痤疮翻译韩国病理

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Enzyme-amplified SERS immunoassay with Ag-Au bimetallic SERS hot spots

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Nano Research 2020年第12期13卷 3338-3346页

作者： Xuan-Hung Pham Eunil Hahm Tae Han Kim Hyung-Mo Kim sang Hun lee sang chul lee Homan Kang Ho-Young lee Dae Hong Jeong Hak Soo Choi Bong-Hyun Jun Department of Bioscience and Biotechnology Konkuk UniversitySeoul143-701Republic of Korea Department of Nuclear Medicine Seoul National University Bundang HospitalSeongnam13620Republic of Korea Gordon Center for Medical Imaging Department of RadiologyMassachusetts General Hospital and Harvard Medical SchoolBostonMA02114USA Department of Chemistry Education Seoul National UniversitySeoul151-742Republic of Korea

Surface-enhanced Raman scattering(SERS)enables rapid detection of single molecules with high ***,quantitative and sensitive SERS analysis has been a challenge due to the lack of reliable SERS-active *** this study,we developed a quantitative SERS-based immunoassay using enzyme-guided Ag growth on Raman labeling compound(RLC)-immobilized gold nanoparticle(Au NP)-assembled silica NPs(SiO2@Au-RLC@Ag).The enzyme amplified Ag+reduction as well as Ag growth on the RLC-immobilized Au NP-assembled silica NPs(SiO2@Au-RLC),which resulted in a significant increase in SERS *** the presence of target antigens such as immunoglobulinG(IgG)or prostate-specific antigen(PSA),Ab1-Antigen-Ab2 immune complex with alkaline phosphatase triggered an enzyme-catalyzed reaction to convert 2-phospho-L-ascorbic acid(2-phospho-L-AA)to ascorbic acid(AA).As produced AA reduced Ag+to Ag,forming an Ag hot spot on the surface of SiO2@Au-RLC,which enhanced the SERS signal of SiO2@Au-RLC@Ag in a solution with a target antigen *** plasmonic immunoassay for IgG detection showed a high linearity of SERS intensity in the range of 0.6 to 9.0 ng/mL with a detection limit(LOD)of 0.09 ng/mL,while an LOD of 0.006 ng/mL was obtained for *** results indicate that the sensitivity of our novel SERS-based immunoassay is higher than that of conventional enzyme-based colorimetric immunoassays.

关键词： surface-enhanced Raman scattering(SERS)-based immunoassay Au-Ag alloy surface-enhanced Raman scattering silica template immunoglobulin G(IgG)detection

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Usefulness of radial extracorporeal shock wave therapy for the spasticity of the subscapularis in patients with stroke： a pilot study

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Chinese Medical Journal 2013年第24期126卷 4638-4643页

作者： YongWook Kim Ji Cheol Shin Jeong-Gyu Yoon Yong-Kyun Kim sang chul lee Department and Research Institute of Rehabilitation Medicine Yonsei University College of Medicine Seoul Republic of Korea Department of Physical Medicine & Rehabilitation MyongjiHospital Kwandong University College of Medicine GyunggiRepublic of Kore~

Background There are not many studies about treatment of shoulder spasticity. Although botulinum toxin injection has been reported to be effective for shoulder spasticity, the effectiveness was judged by pain and limited motion change, but not the spasticity itself. Shoulder spasticity is considered to play an important role in hemiplegic frozen shoulder. However, the subscapularis muscle, unlike the pectoralis major muscle, is located deep beneath scapula, where conventional injection is difficult to perform. As extracorporeal shock wave therapy （ESWT） has been reported to be effective for spasticity relief, and we thought spasticity of subscapularis muscle located deep beneath the scapula would be a good candidate for ESWT treatment. This study was to evaluate the beneficial effects of radial ESWT （rESWT） on spastic subscapularis muscle in stroke patients. Methods This is an uncontrolled, prospective, unicenter, clinical pilot study. Stroke patients （n=57; mean age 55.4 years） with spastic shoulders were recruited between June 2011 and February 2012 at the University Rehabilitation Hospital. rESWT was administered to each patient every two or three days for two weeks （five total treatments）. Evaluation consisted of 11 measurements for each patient; at the start of each of the five treatments and once per week during the following six weeks. Spasticity was measured at external rotator muscles of the shoulder using the modified Ashworth scale （MAS）, and passive range of motion （ROM） of the shoulder in external rotation was recorded. Pain was measured using a visual analogue scale （VAS） during passive ROM of the shoulder in external rotation, and was additionally recorded for patients who preserved cognitive and communicative ability （Pain group）. Results Reduction in MAS and VAS and improvement of ROM during and after rESWT treatments were prominent compared to baseline. The reduction in MAS and VAS and improvement of ROM continued four weeks after the last treatmen

关键词： spasticity extracorporeal shock wave therapy, stroke, shoulder

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