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Prevalence and risk factors of wound complications after transtibial amputation in patients with diabetic foot

World Journal of Diabetes 2024年第4期15卷 629-637页

作者： Young Uk Park seong Hyuk Eim Young wook seo Department of Orthopedic Surgery Ajou University School of MedicineAjou University HospitalSuwon 16499South Korea

BACKGROUND Diabetic foot(DMF)complications are common and are increasing in *** factors related to wound complications are yet to be established after transtibial amputation under the diagnosis of DMF *** To analyze the prognosis and risk factors related to wound complications after transtibial amputation in patients with *** This retrospective cohort study included seventy-two patients with DMF complications who underwent transtibial amputation between April 2014 and March *** groups were categorized based on the occurrence of wound complications,and we compared demographic data between the complication group and the non-complication group to analyze risk ***,a multivariate logistic regression analysis was performed to identify risk *** The average follow-up period was 36.2 *** the 72 cases,31(43.1%)had wound *** these,12 cases(16.7%)received further treatment,such as debridement,soft tissue stump revision,and re-amputation at the proximal *** a group that required further management due to wound complications after transtibial amputation,the hemoglobin A1c(HbA1c)level was 9.32,while the other group that did not require any treatment had a 7.54 HbA1c *** prevalence of a history of kidney transplantation with wound complications after transtibial amputation surgery in DMF patients was significantly greater than in cases without wound complications(P=0.02).Other factors did not show significant *** Approximately 43.1%of the patients with transtibial amputation surgery experienced wound complications,and 16.7%required additional surgical *** HbA1c levels and kidney transplant history are risk factors for postoperative wound complications.

关键词： Diabetic foot Transtibial amputation Wound complications Risk factor

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Highly Aligned Ternary Nanofiber Matrices Loaded with MXene Expedite Regeneration of Volumetric Muscle Loss

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Nano-Micro Letters 2024年第4期16卷 269-292页

作者： Moon sung Kang Yeuni Yu Rowoon Park Hye Jin Heo seok Hyun Lee Suck Won Hong Yun Hak Kim Dong‑wook Han Department of Cogno‑Mechatronics Engineering College of Nanoscience and NanotechnologyPusan National UniversityBusan 46241Republic of Korea Medical Research Institute School of MedicinePusan National UniversityYangsan 50612Republic of Korea Department of Anatomy School of MedicinePusan National UniversityYangsan 50612Republic of Korea Engineering Research Center for Color‑Modulated Extra‑Sensory Perception Technology Pusan National UniversityBusan 46241Republic of Korea Department of Biomedical Informatics School of MedicinePusan National UniversityYangsan 50612Republic of Korea Periodontal Disease Signaling Network Research Center and Dental and Life Science Institute School of DentistryPusan National UniversityYangsan 50612Republic of Korea BIO‑IT Fusion Technology Research Institute Pusan National UniversityBusan 46241Republic of Korea Present Address:Osstem Implant Inc. Seoul 07789Republic of Korea

Current therapeutic approaches for volumetric muscle loss(VML)face challenges due to limited graft availability and insufficient *** overcome these limitations,tissue-engineered scaffolds have emerged as a promising *** this study,we developed aligned ternary nanofibrous matrices comprised of poly(lactide-co-ε-caprolactone)integrated with collagen and Ti_(3)C_(2)T_(x)MXene nanoparticles(NPs)(PCM matrices),and explored their myogenic potential for skeletal muscle tissue *** PCM matrices demonstrated favorable physicochemical properties,including structural uniformity,alignment,microporosity,and *** vitro assays revealed that the PCM matrices promoted cellular behaviors and myogenic differentiation of C2C12 ***,in vivo experiments demonstrated enhanced muscle remodeling and recovery in mice treated with PCM matrices following VML *** insights from next-generation sequencing revealed that MXene NPs facilitated protein and ion availability within PCM matrices,leading to elevated intracellular Ca^(2+)levels in myoblasts through the activation of inducible nitric oxide synthase(i NOS)and serum/glucocorticoid regulated kinase 1(SGK1),ultimately promoting myogenic differentiation via the m TOR-AKT ***,upregulated i NOS and increased NO–contributed to myoblast proliferation and fiber fusion,thereby facilitating overall myoblast *** findings underscore the potential of MXene NPs loaded within highly aligned matrices as therapeutic agents to promote skeletal muscle tissue recovery.

关键词： Ti_(3)C_(2)T_(x)MXene nanoparticle Ternary nanofibrous matrices Myogenesis Regeneration of volumetric muscle loss Next generation sequencing

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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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Understanding the correlation between energy-state mismatching and open-circuit voltage loss in bulk heterojunction solar cells

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Carbon Energy 2024年第5期6卷 164-174页

作者： Hyun-seock Yang Danbi Kim Chang-Mok Oh Vellaiappillai Tamilavan Pesi MHangoma Hojun Yi Bo RLee Insoo Shin In-wook Hwang sung Heum Park Pukyong National University BusanRepublic of Korea Clarendon Laboratory University of OxfordOxfordUK Institute of Energy Transport and Fusion Research Pukyong National UniversityBusanRepublic of Korea Advanced Photonics Research Institute Gwangju Institute of Science and TechnologyGwangjuRepublic of Korea Department of Chemical and Biomolecular Engineering Tandon School of EngineeringNew York UniversityBrooklynNew YorkUSA

Photoinduced intermolecular charge transfer(PICT)determines the voltage loss in bulk heterojunction(BHJ)organic photovoltaics(OPVs),and this voltage loss can be minimized by inducing efficient PICT,which requires energy-state matching between the donor and acceptor at the BHJ ***,both geometrically and energetically accessible delocalized state matching at the hot energy level is crucial for achieving efficient *** this study,an effective method for quantifying the hot state matching of OPVs was *** degree of energy-state matching between the electron donor and acceptor at BHJ interfaces was quantified using a mismatching factor(MF)calculated from the modified optical density of the ***,the correlation between the open-circuit voltage(Voc)of the OPV device and energy-state matching at the BHJ interface was investigated using the calculated *** OPVs with small absolute MF values exhibited high Voc *** result clearly indicates that the energy-state matching between the donor and acceptor is crucial for achieving a high Voc in *** the MF indicates the degree of energy-state matching,which is a critical factor for suppressing energy loss,it can be used to estimate the Voc loss in OPVs.

关键词： bulk heterojunction open circuit voltage organic photovoltaics photoinduced charge transfer voltage loss

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RUFY4 deletion prevents pathological bone loss by blocking endo-lysosomal trafficking of osteoclasts

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Bone Research 2024年第2期12卷 407-420页

作者： Minhee Kim Jin Hee Park Miyeon Go Nawon Lee Jeongin seo Hana Lee Doyong Kim Hyunil Ha Taesoo Kim Myeong seon Jeong Suree Kim Taesoo Kim Han sung Kim Dongmin Kang Hyunbo Shim Soo Young Lee Department of Life Science Ewha Womans UniversitySeoul 03760South Korea The Research Center for Cellular Homeostasis Ewha Womans UniversitySeoul 03760South Korea Department of Biomedical Engineering Yonsei UniversityWonju 26493South Korea KM Convergence Research Division Korea Institute of Oriental MedicineDaejeon 34054South Korea Chuncheon Center Korea Basic Science InstituteChuncheon 24341South Korea Fluorescence Core Imaging Center and Bioimaging Data Curation Center Ewha Womans UniversitySeoul 03760South Korea Multitasking Macrophage Research Center Ewha Womans UniversitySeoul 03760South Korea

Mature osteoclasts degrade bone matrix by exocytosis of active proteases from secretory lysosomes through a ruffled ***,the molecular mechanisms underlying lysosomal trafficking and secretion in osteoclasts remain largely ***,we show with GeneChip analysis that RUN and FYVE domain-containing protein 4(RUFY4)is strongly upregulated during *** lacking Rufy4 exhibited a high trabecular bone mass phenotype with abnormalities in osteoclast function in ***,deleting Rufy4 did not affect osteoclast differentiation,but inhibited bone-resorbing activity due to disruption in the acidic maturation of secondary lysosomes,their trafficking to the membrane,and their secretion of cathepsin K into the extracellular ***,RUFY4 promotes late endosome-lysosome fusion by acting as an adaptor protein between Rab7 on late endosomes and LAMP2 on primary ***,Rufy4-deficient mice were highly protected from lipopolysaccharide-and ovariectomy-induced bone ***,RUFY4 plays as a new regulator in osteoclast activity by mediating endo-lysosomal trafficking and have a potential to be specific target for therapies against bone-loss diseases such as osteoporosis.

关键词： osteoclast inhibited traffic

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Survival benefit of concurrent chemoradiotherapy for advanced ampulla of Vater cancer

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World Journal of Clinical Cases 2024年第2期12卷 267-275页

作者： Chae Hwa Kwon Hyung Il seo Dong Uk Kim sung Yong Han Suk Kim Nam Kyung Lee Seung Baek Hong Ji Hyun Ahn Young Mok Park Byeong Gwan Noh BioMedical Research Institute Pusan National University HospitalBusan 49241South Korea Department of Surgery Pusan National University School of Medicine and Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Internal Medicine Pusan National University School of Medicine and Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Radiology Pusan National University School of Medicine and Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Pathology and Biomedical Research Institute Pusan National University HospitalBusan 49241South Korea

BACKGROUND Currently,there is no standard adjuvant therapy for patients with resected ampulla of Vater(AoV)*** To evaluate the effectiveness of adjuvant concurrent chemoradiotherapy(CCRT)in patients with advanced AoV cancer who underwent curative *** This single-centered,retrospective study included 29 patients with advanced AoV cancer who underwent pancreaticoduodenectomy between 2006 and *** impact of CCRT on advanced AoV cancer was *** The 1-,3-,and 5-yr recurrence-free survival(RFS)rates for patients with advanced AoV cancer were 82.8%,48.3%,and 40.8%,respectively,and the overall survival(OS)rates were 89.7%,62.1%,and 51.7%,***-cular invasion was found to be a significant risk factor for RFS and OS in patients with advanced AoV cancer in the univariate analysis,whereas T stage and lymph node metastasis were significantly associated with OS in the multivariate *** to the patients who did not receive adjuvant CCRT,those who received adjuvant CCRT did not show statistically significant improvements in the RFS and OS,although they had a significantly lower average age and significantly higher platelet-to-lymphocyte *** Adjuvant CCRT did not improve survival outcomes in patients with advanced AoV *** findings contribute to existing knowledge on the effectiveness of CCRT in this patient population and provide important insights for clinical decision-making.

关键词： Advanced ampulla of Vater cancer Adjuvant concurrent chemoradiotherapy Recurrence Survival Vater cancer

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Inflammatory conversion of quiescent osteoblasts by metastatic breast cancer cells through pERKl/2 aggravates cancer-induced bone destruction

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Bone Research 2021年第4期9卷 557-570页

作者： Jungho Back Minh Nam Nguyen Lu Li Saelim Lee Inkyu Lee Fancheng Chen Lauren Gillinov Yeon-Ho Chung Kareme D.Alder Hyuk-Kwon Kwon Kristin E.Yu Christopher M.Dussik Ziehen Hao Michael J.Flores Yoseph Kim Izuchukwu K.Ibe Alana M.Munger sung wook seo Francis Y.Lee Department of Orthopaedics&Rehabilitation Yale UniversitySchool of MedicineNew HavenCTUSA Research Center for Genetics and Reproductive Health School of MedicineVietnam National University Ho Chi Minh CityLinh Trung WardThu Due DistrictHo Chi Minh CityVietnam Department of Rehabilitation Medicine Renji HospitalSchool of MedicineShanghai JiaoTong UniversityShanghaiChina College of Medicine Dankook UniversityCheonanRepublic of Korea Department of Life Science Chung-Ang UniversitySeoulRepublic of Korea Shanghai Medical College Fudan UniversityShanghai CityChina Department of Emergency&Trauma Changhai HospitalNavy Medical UniversityShanghaiChina Biomedical Engineering Johns Hopkins UniversityBaltimoreMDUSA Department of Orthopedic Surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoulGangnam-guRepublic of Korea

Disruption of bone homeostasis caused by metastatic osteolytic breast cancer cells increases inflammatory osteolysis and decreases bone formation,thereby predisposing patients to pathological fracture and cancer *** of osteoblast function induces skeletal diseases due to the disruption of bone *** observed increased activation of pERK1/2 in osteolytic breast cancer cells and osteoblasts in human pathological specimens with aggressive osteolytic breast cancer *** confirmed that osteolytic breast cancers with high expression of pERK1/2 disrupt bone homeostasis via osteoblastic ERK1/2 activation at the bone-breast cancer *** process of inflammatory osteolysis modulates ERK1/2 activation in osteoblasts and breast cancer cells through dominant-negative MEK1 expression and constitutively active MEK1 expression to promote cancer growth within ***,an FDA-approved MEK inhibitor,not only reduced breast cancer-induced bone destruction but also dramatically reduced cancer growth in bone by inhibiting the inflammatory skeletal *** together,these findings suggest that ERK1/2 activation in both breast cancer cells and osteoblasts is required for osteolytic breast cancer-induced inflammatory osteolysis and that ERK1/2 pathway inhibitors may represent a promising adjuvant therapy for patients with aggressive osteolytic breast cancers by altering the shared cancer and bone microenvironment.

关键词： pERK1/2 breast homeostasis

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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

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Silent advanced large cell neuroendocrine carcinoma with synchronous adenocarcinoma of the colon:A case report

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World Journal of Gastrointestinal Oncology 2022年第11期14卷 2266-2272页

作者： Hyeon seok Baek Sang wook Kim Soo Teik Lee Ho sung Park Seung Young seo Department of Internal Medicine Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonju-si 56445Jeollabuk-doSouth Korea Department of Pathology Jeonbuk National University Medical SchoolJeonjusi 56445Jeollabuk-doSouth Korea

BACKGROUND Large cell neuroendocrine carcinoma(LCNEC)accounts for about 0.25%of colorectal cancer ***,synchronous LCNEC and adenocarcinoma coexistence in the colon is very *** are usually aggressive and have a poor ***,colorectal LCNEC patients complain of abdominal symptoms such as pain,diarrhea or hematochezia because it is often diagnosed as an advanced disease that accompanies metastatic *** SUMMARY We describe a case of relatively asymptomatic synchronous LCNEC and colon adenocarcinoma.A 62-year-old male patient visited our hospital due to anemia detected by a local health *** did not complain of melena,hematochezia or abdominal *** examination was unremarkable and his abdomen was soft,nontender and nondistended with no palpable *** tests revealed anemia with hemoglobin 5.1 g/*** revealed an ulcerofungating lesion in the ascending colon and about a 1.5 cm-sized large sessile polyp in the sigmoid *** biopsy of the ascending colon lesion revealed the ulcerofungating mass that was LCNEC and endoscopic mucosal resection at the sigmoid colon lesion showed a large polypoid lesion that was *** liver,lung,bone and lymph nodes metastasis was found on chest/abdominal computed tomography and positron emission *** patient was diagnosed with advanced colorectal LCNEC with liver,lung,bone and lymph node metastasis(stage IV)and synchronous colonic adenocarcinoma *** this case,no specific symptom except anemia was observed despite the multiple *** patient refused systemic chemotherapy and was discharged after *** We report a case of silent LCNEC of the colon despite the advanced state and synchronous adenocarcinoma.

关键词： Large cell neuroendocrine carcinoma Colon Synchronous Adenocarcinoma Case report

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Recovery of brachial plexus injury after bronchopleural fistula closure surgery based on electrodiagnostic study:A case report and review of literature

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World Journal of Clinical Cases 2022年第30期10卷 11090-11100页

作者： Young-In Go Da-Sol Kim Gi-wook Kim Yu Hui Won sung-Hee Park Myoung-Hwan Ko Jeong-Hwan seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Axillary thoracotomy and muscle flap are muscle-and nerve-sparing methods among the surgical approaches to bronchopleural fistula(BPF).However,in patients who are vulnerable to a nerve compression injury,nerve injury may *** this report,we present a unique case in which the brachial plexus(division level),suprascapular,and long thoracic nerve injury occurred after BPF closure surgery in a patient with ankylosing spondylitis and concomitant multiple joint *** SUMMARY A 52-year-old man with a history of ankylosing spondylitis with shoulder joint contractures presented with right arm weakness and sensory impairment immediately after axillary thoracotomy and latissimus dorsi muscle flap surgery for BPF *** the surgery,the patient was positioned in a lateral decubitus position with the right arm hyper-abducted for approximately 6 *** resonance imaging and ultrasound revealed subclavius muscle injury or myositis with brachial plexus(BP)compression and related *** electrodiagnostic study confirmed the presence of BP injury involving the wholedivision level,long thoracic,and suprascapular nerve *** was treated with medication,physical therapy,and ultrasound-guided *** steroid injection at the BP,hydrodissection with 5%dextrose water at the BP and suprascapular nerve,and intra-articular steroid and hyaluronidase injection at the glenohumeral joint were *** postoperative day 194,the pain and arm weakness were resolved,and a follow-up electrodiagnostic study showed marked *** Clinicians should consider the possibilities of multiple nerve injuries in patients with joint contracture,and treat each specific therapeutic target.

关键词： Brachial plexus Electrodiagnosis Physical therapy Surgical flaps Thoracotomy Case report

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