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Production of chitosan-based composite film reinforced with lignin-rich lignocellulose nanofibers from rice husk

Journal of Bioresources and Bioproducts 2024年第2期9卷 174-184页

作者： Hye Jee Kang yeon ju lee Jin Kyoung lee Irnia Nurika Sri Suhartini Deokyeong Choe Dong Hyun Kim Hoon Choi Natasha P.Murphy Ho Yong Kim Young Hoon jung School of Food Science and Biotechnology Kyungpook National UniversityDaegu 41566Republic of Korea CPR S&T Co. Ltd.Gunpo 15880Republic of Korea Department of Agroindustrial Technology Faculty of Agricultural TechnologyUniversitas BrawijayaMalang 65145Indonesia Renewable Resources and Enabling Sciences Center National Renewable Energy LaboratoryGoldenCO 80401United States Center for Bio-based Chemistry Korea Research Institute of Chemical TechnologyUlsan 44429Republic of Korea

Lignocellulosic nanofibers(LCNFs),implying lignin-containing cellulose fibers,maintain the prop-erties of both lignin and cellulose,which are hydrophobic and hydrophilic,*** pres-ence of hydrophobic lignin in LCNFs is expected to be an economical and attractive option that can improve the thermal and mechanical properties of ***,this study was conducted to produce lignin-rich LCNFs from sugar-rich waste obtained from rice husks after acidic *** LCNFs were produced from the lignin-rich solid fractions obtained after pretreatment and enzymatic hydrolysis,which were then incorporated as an additive into a chitosan-based *** variations in lignin content in the range of approximately 50.6%-66.8%in differently obtained LCNFs gave significantly different optical strengths and mechanical *** controllable processes may allow for customized film ***,the glucose-rich liquid fractions obtained after pretreatment and enzymatic hydrolysis were used as a substrate for ethanol fermentation to achieve total utilization of rice husk biomass *** conclusion,the lignin-rich biomass fraction holds promise as a suitable material for chitosan-LCNF film and has the potential to increase the economic feasibility of the biomaterial industry.

关键词： Rice husk Lignocellulose nanofiber Lignin-based material Chitosan film Upcycling

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The sex-specific associations between suicidality and post-traumatic stress disorder in patients with physical injuries

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General Psychiatry 2024年第5期37卷 550-554页

作者： Jae-Min Kim ju-Wan Kim Hee-ju Kang Hyunseok Jang jung-Chul Kim Byung Jo Chun ju-yeon lee Sung-Wan Kim Il-Seon Shin Department of Psychiatry Chonnam National University Medical SchoolGwangjuRepublic of Korea Division of Trauma Department of SurgeryChonnam National University Medical School and HospitalGwangjuRepublic of Korea Department of Emergency Medicine Chonnam National University Medical SchoolGwangjuRepublic of Korea

To theeditor:Post-traumatic stress disorder(PTSD)arises after traumatic experiences,presenting with symptoms like reliving trauma,avoidance of reminders,mood changes and increased arousal,significantly affecting life quality and daily functioning.1 A severe complication of PTSD is suicidality,notably contributing to the higher mortality among PTSD sufferers.

关键词： traumatic injuries mortality

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Investigating ischemia and reperfusion-induced organ damage in severe cardiac arrest:A comprehensive proteomics perspective

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Journal of Pharmaceutical Analysis 2024年第3期14卷 427-430页

作者： ju yeon lee Muhammad Shoaib Jin-Woong Choi Rishabh C.Choudhary Tai Yin Nara Yoon Kei Hayashida Seunguk J.Baek Santiago J.Miyara Lance B.Becker junhwan Kim Research Center of Bioconvergence Analysis Korea Basic Science InstituteCheongjuSouth Korea Bio-Analytical Science University of Science and TechnologyCheongjuSouth Korea Laboratory for Critical Care Physiology Feinstein Institutes for Medical ResearchManhassetNY11030USA Donald and Barbara Zucker School of Medicine at Hofstra/Northwell School of Medicine HempsteadNY11549USA Mathematics and Computer Science Adelphi UniversityGarden CityNY11530USA Department of Emergency Medicine North Shore University HospitalManhassetNY11030USA

Cardiac arrest(CA)is a life-threatening condition with complex pathophysiology and limited treatment *** gain deeper insights into the pathological state of vital organs,we employed a proteomics analysis in rodents to assess proteome alterations in the brain,heart,kidney,and liver using a rat model of *** brain displayed severe protein alterations in essential cellular pathways,including three major energy-generating pathways after CA,which worsened after resuscitation,resulting in the most significant overall protein changes among the ***,the liver,experiencing the most substantial protein alterations post-CA,demonstrated significant recovery,presenting the least protein changes post-resuscitation.

关键词： alterations organs damage

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A novel electrospinning method for self-assembled tree-like fibrous scaffolds:Microenvironment-associated regulation of MSC behavior and bone regeneration

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Journal of Materials Science & Technology 2022年第20期115卷 52-70页

作者： Jeong In Kim ju yeon Kim Sung-Ho Kook Jeong-Chae lee Cluster for Craniofacial Development and Regeneration Research Institute of Oral Biosciences and School of DentistryJeonbuk National UniversityJeonju 54896Republic of Korea Department of Bionanosystem Engineering Jeonbuk National UniversityJeonju 54896Republic of Korea Department of Bioactive Material Sciences Research Center of Bioactive MaterialsJeonbuk National UniversityJeonju 54896Republic of Korea

Numerous studies highlight advantages of electrospun scaffolds in bone tissue engineering,in which cellular behavior is tightly affected by fiber topographical cues of ***,the classic electrospinning setup limits a desired presentation of biomimetic fibrous microenvironments that sense mechanosignaling and regulate stem cell *** aims of this study were to fabricate advanced asspun scaffolds presenting tree-like microfiber/nanonet networks and to evaluate their regulatory potentials on behavior of human mesenchymal stem cells(h MSCs)and bone *** we developed a novel electrospinning setup that allowed the presentation of patterned Trunk microfibers(TMF)and/or branched nanonet fibers(BNn Fs)in biomimetic fibrous *** the cellular mechanisms,anisotropichierarchical topography of TMF controlled behavior of h MSCs through focal adhesion formation and Yesassociated protein(YAP)induction,whereas BNn F disturbed such mechanosensing responses in the *** fiber microenvironment-related expression and nuclear localization of YAP *** correlated with the potentials of as-spun scaffolds to enhance osteogenic differentiation of the h MSCs and alveolar bone defect healing in an animal ***,this study provides an advanced approach of the modified electrospinning setup for presentation of biomimetic fibrillar microenvironments in as-spun scaffolds along with their application in stem cell behavior regulation and regenerative tissue engineering.

关键词： Electrospinning Advanced biomimetic scaffolds Stem cell behavior Mechanosensing Bone tissue engineering

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Treatment of syringomyelia using uncultured umbilical cord mesenchymal stem cells: A case report and review of literature

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World Journal of Stem Cells 2022年第4期14卷 303-309页

作者： Hyunjun Ahn Sang yeon lee Won-ju jung Kye-Ho lee Stem Cell Treatment and Research Institute(STRI) bio Beauty and Health Company(bBHC)Seoul 04420South Korea Stem Cell Treatment 97.7 Beauty and Health ClinicSeoul 04420South Korea

BACKGROUND Syringomyelia is a disease caused by the formation of a cavity inside the spinal cord and is accompanied by such symptoms as pain,paresthesia,and urination and defecation disorders,and in severe cases causes various ***,there are only surgical methods for the treatment of syringomyelia,but these methods carry the possibility of failure,recurrence,and side *** SUMMARY The patient was a 59-year-old woman who suffered from pain due to *** treatment,the patient received transplant of uncultured umbilical cord-derived mesenchymal stem *** intended,the patient's pain was relieved after ***,an additional benefit was found in that the size of the cavity also *** 2 years from the last treatment,the patient's cavity had almost completely disappeared and her syringomyelia was deemed *** Using uncultured umbilical cord-derived mesenchymal stem cells may be a new treatment alternative for syringomyelia.

关键词： Syringomyelia Umbilical cord mesenchymal stem cells Cell therapy Allogenic stem cells Chiari malformations Case report

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Survival analysis following early surgical success in intermittent exotropia surgery

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International Journal of Ophthalmology(English edition) 2014年第3期7卷 528-533页

作者： Joo yeon lee Sung ju Ko Sung Uk Baek Department of Ophthalmology Hallym University College of Medicine

AIM:To assess the consecutive recurrence following early success of intermittent exotropia surgery and to determine the clinical factors that affect the ***:One hundred and thirty-five patients who underwent intermittent exotropia surgery and experienced early surgical success[≤5 prism diopters(PD)esophoria(E)to≤10 PD exophoria(X)on the postoperative sixth month]were enrolled in this *** consecutive survival on the postoperative first year,second year and third year and at the last visit of fourth year or more,and the factors that might affect their survival,were *** final surgical outcomes after the postoperative fourth year were also investigated by dividing the patients into the success group(≤5 PD E to≤10 PD X)and the failure group(>5 PD esodeviation or>10 PD exodeviation)RESULTS:The survival rates from the Kaplan-Meier analysis were 97.78%,92.89%,83.70%and 50.49%on the postoperative first,second and third years and fourth year or more,*** of the clinical factors was determined to have affected the *** amount of the exodrift was largest(2.29 PD)between the first year and the second year,and smallest(1.47 PD)between the fourth year and the last ***-three patients had their final visit after the postoperative fourth year,and 29 of them were in the failure *** patients in the failure group had an intermittent exotropia(IXT)of<20 PD with good to fair distant fusion;two had an IXT of<20 PD with poor distant fusion;one had an IXT of≥20 PD with fair distant fusion;and another had delayed-onset consecutive *** exodeviation on the postoperative sixth month was smaller in the success group than in the failure group(2.81 PD vs 5.86 PD,P=0.012).The reoperation rate for recurrent IXT was 3.7%.CONCLUSION:The survival rate steadily decreases with the exodrift,but the amount of the exodrift decreases with long-term *** final outcomes demonstrate favorable results via surgic

关键词： long-term outcome survival analysis intermittent exotropia surgery

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Alopecia treatment using minimally manipulated human umbilical cord-derived mesenchymal stem cells:Three case reports and review of literature

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World Journal of Clinical Cases 2021年第15期9卷 3741-3751页

作者： Hyunjun Ahn Sang yeon lee Won ju jung Kye-Ho lee bio Beauty&Health Company(bBHC)-Stem Cell Treatment&Research Institute(STRI) Seoul 04420South Korea Department of Functional Genomics University of Science and Technology KRIBB SchoolDeajeon 34113South Korea 97.7 Beauty&Health(B&H)Clinics Seoul 04420South Korea

BACKGROUND Alopecia areata(AA)is a common autoimmune disease characterized by hair *** appears in extensive forms,such as progressive and diffusing hair loss(diffuse AA),a total loss of scalp hair(alopecia totalis),and complete loss of hair over the entire body(alopecia universalis).Recently,mesenchymal stem cells(MSCs)have been identified as a therapeutic alternative for autoimmune *** this reason,preclinical and case studies of AA and related diseases using MSCs have been *** SUMMARY Case 1:A 55-year-old woman suffered from AA in two areas of the *** was given 15 rounds of minimally manipulated umbilical cord-MSCs(MM-UC-MSCs)over 6 *** AA gradually improved 3 mo after the first *** patient was cured,and AA did not *** 2:A 30-year-old woman,with history of local steroid hormone injections,suffered from AA in one area on the *** was given two rounds of MM-UC-MSCs over 1 *** AA immediately improved after the first *** patient was cured,and AA did not *** 3:A 20-year-old woman,who was diagnosed with alopecia universalis at the age of 12,was given 14 rounds of MM-UC-MSCs over 12 *** hair began to grow about 3 mo after the first *** patient was cured,and alopecia universalis did not *** MM-UC-MSC transplantation potentially treats patients who suffer from AA and related diseases.

关键词： Alopecia areata Umbilical cord-derived mesenchymal stem cells Allogenic Cell therapy Minimal manipulation Case report

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Treatment of acute ischemic stroke by minimally manipulated umbilical cord-derived mesenchymal stem cells transplantation:A case report

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World Journal of Stem Cells 2021年第8期13卷 1151-1159页

作者： Hyunjun Ahn Sang yeon lee Won ju jung Kye-Ho lee bio Beauty&Health Company(bBHC)-Stem Cell Treatment&Research Institute(STRI) Seoul 04420South Korea 97.7 Beauty&Health(B&H)Clinics Seoul 04420South Korea

BACKGROUND Stroke is one of the major causes of disability and death *** treatments for stroke exist,but existing treatment methods have limitations such as difficulty in the regeneration of damaged neuronal cells of the ***,mesenchymal stem cells(MSCs)have been studied as a therapeutic alternative for stroke,and various preclinical and case studies have been *** SUMMARY A 55-year-old man suffered an acute stroke,causing paralysis in the left upper and lower *** intravenously transplanted the minimally manipulated human umbilical cord-derived MSCs(MM-UC-MSCs)twice with an 8-d *** 65 wk after transplantation,the patient returned to his previous occupation as a veterinarian with no adverse *** MM-UC-MSCs transplantation potentially treats patients who suffer from acute ischemic stroke.

关键词： Acute ischemic stroke Behavioral disorder Umbilical cord-derived mesenchymal stem cells Allogenic Cell therapy Minimal manipulation Case report

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Electrochemically stable lithium-ion and electron insulators(LEIs)for solid-state batteries

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Nano Research 2022年第2期15卷 1213-1220页

作者： Kai Pei So yeon Kim ju Li Frontier Institute of Science and Technology Xi'an Jiaotong UniversityXi'an 710049China Department of Materials Science and Engineering and Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

Rechargeable solid-state Li metal batteries demand ordered flows of Li-ions and electrons in and out of solid structures,with repeated waxing and waning of Ubcc phase near contact interfaces which gives rise to various electro-chemo-mechanical *** have been approaches that adopt three-dimensional(3D)nanoporous architectures consisting of mixed ion-electron conductors(MIECs)to combat these ***,there has remained an issue of LiBcc nucleation at the interfaces between different solid components(e.g.,solid electrolyte/MlEC interface),which could undermine the interfacial bonding,thereby leading to the evolution of mechanical instability and the loss of ionic/electronic *** this regard,the present work shows that the Li-ion and electron insulators(LEIs)that are thermodynamically stable against LiBcc could combat such challenges by blocking transportation of charge carriers on the interfaces,analogous to dielectric layers in *** searched the ab initio database and have identified 48 crystalline compounds to be LEI candidates(46 experimentally reported compounds and 2 hypothetical compounds predicted to be stable)with a band gap greater than 3 eV and vanishing Li *** these compounds,those with good adhesion to solid electrolyte and mixed ion-electron conductor of interest,but are lithiophobic,are expected to be the most *** also extended the search to Na or K metal compatible alkali-ion and electron insulators,and identified some crystalline compounds with a property to resist corresponding alkali-ions and electrons.

关键词： electrochemical stability window stress fracture adhesion contact lithium metal anode

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Psoriasis treatment using minimally manipulated umbilical cordderived mesenchymal stem cells:A case report

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World Journal of Clinical Cases 2021年第23期9卷 6798-6803页

作者： Hyunjun Ahn Sang yeon lee Won-ju jung Jia Pi Kye-Ho lee bio Beauty&Health Company(bBHC)-Stem Cell Treatment and Research Institute(STRI) Seoul 04420South Korea Department of Functional Genomics University of Science and Technology KRIBB SchoolDeajeon 34113South Korea Stem Cell Treatment 97.7 B&H ClinicSeoul 04420South Korea

BACKGROUND Psoriasis is a chronic autoimmune disease that usually manifests as a red scaly epidermis,induration,and hyperproliferation of basal *** 2%of the world’s population suffers from psoriasis but there are no clear therapeutics ***,mesenchymal stem cells(MSCs)have been regarded as a therapeutic alternative for autoimmune diseases,as they possess immunosuppressive effects without *** umbilical cord-derived MSCs effectively regulate immune cells and are characterized by low immunogenicity,which has many advantages in treating immune *** SUMMARY The patient was a 47-year-old male,diagnosed with psoriasis in *** had received various treatments for 25 years,but the psoriatic condition was not significantly *** was given three rounds of minimally manipulated umbilical cord-derived MSCs over 2 *** erythema gradually *** months after the 1st round,all erythema completely disappeared,and the psoriasis did not *** Minimally manipulated umbilical cord-derived MSC transplantation can potentially treat patients who suffer from psoriasis.

关键词： Psoriasis Umbilical cord-derived mesenchymal stem cells Allogenic Cell therapy Minimal manipulation Case report

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