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Predictors of post-treatment stenosis in cervical esophageal cancer undergoing high-dose radiotherapy

World Journal of Gastroenterology 2018年第7期24卷 862-869页

作者： jun won kim Tae Hyung kim Jie-Hyun kim Ik Jae Lee Department of Radiation Oncology Gangnam Severance Hospital Yonsei University College of Medicine Department of Internal Medicine Gangnam Severance Hospital Yonsei University College of Medicine

AIM To evaluate toxicity and treatment outcome of highdose radiotherapy(RT) for cervical esophageal cancer(CEC).METHODS We reviewed a total of 62 consecutive patients who received definitive RT for stage Ⅰ to Ⅲ cervical esophageal cancer between 2001 and 2015. Patients who received < 45 Gy, treated for lesions below sternal notch, treated with palliative aim, treated with subsequent surgical resection, or diagnosed with synchronous hypopharyngeal cancer were excluded. Treatment failures were divided into local(occurring within the RT field), outfield-esophageal, and regional [occurring in regional lymph node(s)] failures. Factors predictive of esophageal stenosis requiring endoscopic dilation were *** Grade 1, 2, and 3 esophagitis occurred in 19(30.6%), 39(62.9%), and 4 patients(6.5%), respectively, without grade ≥ 4 toxicities. Sixteen patients(25.8%) developed post-RT stenosis, of which 7 cases(43.8%) were malignant. Four patients(6.5%) developed tracheoesophageal fistula(TEF), of which 3(75%) cases were malignant. Factors significantly correlated with post-RT stenosis were stage T3/4(P = 0.001), complete circumference involvement(P < 0.0001), stenosis at diagnosis(P = 0.024), and endoscopic complete response(P = 0.017) in univariate analysis, while complete circumference involvement was significant in multivariate analysis(P = 0.003). A higher dose(≥ 60 Gy) was not associated with occurrence of postRT stenosis or TEF. With a median follow-up of 24.3(range, 3.4-152) mo, the 2 y local control, outfield esophageal control, progression-free survival, and overall survival(OS) rates were 78.9%, 90.2%, 49.6%, and 57.3%, respectively. Factors significantly correlated with OS were complete circumference involvement(P = 0.023), stenosis at diagnosis(P < 0.0001), and occurrence of post-RT stenosis or TEF(P < 0.001) in univariate analysis, while stenosis at diagnosis(P = 0.004) and occurrence of post-RT stenosis or TEF(P = 0.023) were significant in multivariate

关键词： Chemoradiotherapy Post-radiotherapy stenosis High-dose radiotherapy Cervical esophageal cancer

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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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Oncometabolic surgery:Emergence and legitimacy for investigation

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Chinese Journal of Cancer Research 2020年第2期32卷 252-262页

作者： won jun kim Yeongkeun Kwon Chang Min Lee Seung Hyun Lim Yong Li junjiang Wang Weixian Hu Jiabin Zheng Gang Zhao Chunchao Zhu Wei Wang Wenjun Xiong Quan Wang Mingjie Xia Sungsoo Park Korea University College of Medicine Seoul 136-701Republic of Korea Division of Foregut Surgery Korea University College of MedicineSeoul 136-701Republic of Korea Department of General Surgery Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510080China Department of Gastrointestinal Surgery Shanghai Jiao Tong University School of MedicineRenji HospitalShanghai 200025China Department of Gastrointestinal Surgery Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120China Department of Gastrointestinal Surgery The First Bethune Hospital of Jilin UniversityChangchun 130021China

Studies on morbid obesity have shown remarkable improvement of diabetes in patients who have undergone bariatric *** was subsequently shown that these operations induce diabetes remission independent of the resultant weight loss;as a result,surgeons began to investigate whether operations for gastric cancer(GC)could have the same beneficial effect on diabetes as bariatric *** was then shown in multiple reports that followed that certain operations for GC were able to improve or even cure type 2 diabetes mellitus(T2 DM)in GC *** finding gave rise to the concept of"oncometabolic surgery",in which a patient diagnosed with both GC and T2 DM undergo a single operation with the purpose of treating both *** the increasing incidence of T2 DM,oncometabolic surgery has the potential to improve the quality of life and even extend survival of many GC ***,because the GC patient population and the bariatric patient population are wildly different and because different GC operations have different properties,the effect of oncometabolic surgery must be carefully assessed and engineered in order to maximize benefit and avoid *** manuscript aims to summarize the findings made so far in the field of oncometabolic surgery and to provide an outlook regarding the possibility of oncometabolic surgery being incorporated into standard clinical practice.

关键词： Stomach neoplasms bariatric surgery diabetes mellitus metabolic syndrome gastric bypass

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High mobility group box 1 in the central nervous system:regeneration hidden beneath inflammation

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Neural Regeneration Research 2025年第1期20卷 107-115页

作者： Hanki kim Bum jun kim Seungyon Koh Hyo Jin Cho Xuelian Jin Byung Gon kim jun Young Choi Department of Brain Science Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Ajou University Graduate School of MedicineSuwonSouth Korea Department of Neurology Ajou University School of MedicineSuwonSouth Korea Department of Geriatrics The Affiliated Suqian First People’s Hospital of Nanjing Medical UniversitySuqianJiangsu ProvinceChina

High-mobility group box 1 was first discovered in the calf thymus as a DNA-binding nuclear protein and has been widely studied in diverse fields,including neurology and ***-mobility group box 1 in the extracellular space functions as a pro-inflammatory damage-associated molecular pattern,which has been proven to play an important role in a wide variety of central nervous system disorders such as ischemic stroke,Alzheimer’s disease,frontotemporal dementia,Parkinson’s disease,multiple sclerosis,epilepsy,and traumatic brain *** drugs that inhibit high-mobility group box 1 as a damage-associated molecular pattern,such as glycyrrhizin,ethyl pyruvate,and neutralizing anti-high-mobility group box 1 antibodies,are commonly used to target high-mobility group box 1 activity in central nervous system *** it is commonly known for its detrimental inflammatory effect,high-mobility group box 1 has also been shown to have beneficial pro-regenerative roles in central nervous system *** this narrative review,we provide a brief summary of the history of high-mobility group box 1 research and its characterization as a damage-associated molecular pattern,its downstream receptors,and intracellular signaling pathways,how high-mobility group box 1 exerts the repair-favoring roles in general and in the central nervous system,and clues on how to differentiate the pro-regenerative from the pro-inflammatory *** targeting high-mobility group box 1 in the central nervous system may benefit from differentiating between the two functions rather than overall suppression of high-mobility group box 1.

关键词： central nervous system damage-associated molecular pattern ethyl pyruvate glycyrhizzin high mobility group box 1 inflammation neural stem cells neurodevelopment oligodendrocyte progenitor cells redox status regeneration

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Refractory lipoatrophy treated with autologous whole blood injection:A case report

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World Journal of Clinical Cases 2025年第2期13卷 33-38页

作者： wonnam kim jun Su Park En Hyung kim Department of Pharmacology School of Korean MedicinePusan National UniversityYangsan 50612GyeongnamSouth Korea Department of Dermatology College of MedicineChungbuk National UniversityCheongju 28644ChungbukSouth Korea Department of Dermatology Chungbuk National University HospitalCheongju 28644ChungbukSouth Korea

BACKGROUND Intramuscular corticosteroid injection may cause adverse effects such as dermal and/or subcutaneous atrophy,alopecia,hypopigmentation,and *** cutaneous atrophy can spontaneously resolve,several treatment options have been suggested for this *** SUMMARY In this paper,we report a case of corticosteroid injection induced lipoatrophy treated with autologous whole blood(AWB)injection,as the condition had been unresponsive to fractional laser therapy.A 29-year-old female patient visited the dermatology clinic complaining of skin depression on her right buttock area,which had appeared six months *** had been only subtle improvement at the margins after fractional CO_(2) laser treatment;therefore,after obtaining informed consent from the patient,AWB treatment was *** month after the first AWB injection,the size and depth of the lesion had noticeably improved,and a slight improvement was also observed in *** Close observation is the initial treatment of choice for steroid induced skin atrophy;however,for patients in need of immediate cosmetic improvement,AWB injection may be a safe and cost-effective alternative.

关键词： Atrophy Corticosteroid Subcutaneous fat Autologous whole blood injection Laser therapy Case report

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Fracture Characteristics of Frit Bonding through In-Situ Nano-Indentation Testing

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Journal of Materials Science & Technology 2016年第11期32卷 1204-1210页

作者： won Je Jo Hee-jun Ahn Jong Hyoung kim Dongil Kwon Department of Materials Science and Engineering Seoul National University

Because frit bonding material is brittle, sudden impacts such as dropping may damage the bonding significantly. Strain-rate-controlled in-situ nano-indentation testing, which can determine localized material properties, was carried out on the frit-bonded specimen, especially on the frit bonding matrix and the filler. The results were compared with the drop-impact fracture behavior to understand the fracture characteristics. Mechanical properties at static condition or low strain rate did not show proper relationship with the fracture tendency of the drop tested result of the frit bonding. From the relationship between fracture toughness and the ratio of modulus/hardness, fracture characteristics at the drop impact situation could be estimated by the values at the high strain rate nano-indentation. The ratio between modulus and hardness on frit matrix showed close relationship with drop impact fracture. Though crack propagation path deflected at filler interface, filler property gave less influence on fracture tendency of drop impact fracture due to its small volume fraction. The properties of frit matrix were crucial to the fracture characteristics of the frit bonding.

关键词： Nanoindentation Bonding Fracture behavior

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Is there a safe threshold for alcohol consumption in nonalcoholic fatty liver disease?

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Hepatobiliary Surgery and Nutrition 2020年第5期9卷 644-646页

作者： Mimi kim Dae won jun Department of Radiology Hanyang University School of MedicineSeoulKorea Department of Internal Medicine Hanyang University School of MedicineSeoulKorea

Dose modest alcohol consumption(MAC)help the health care?There is a mainstream that MAC may not aggravate or even reduce cardiovascular disease and all-cause mortality(1,2).Light(≤3 drink/week)or moderate(>3 to≤14 drinks/week for men or>3 to≤7 drinks/week for women)alcohol consumption were reducing risk of mortality for all causes and cardiovascular disease(2).In 2018,combined analysis of 599,912 current drinkers in 83 prospective studies of high income countries,showed alcohol consumption was positive and curvilinear association with all-cause mortality and roughly linearly associated with a cardiovascular disease other than myocardial infarction(1).They recommend the threshold for lowest risk of all-cause mortality was 100 g/week.

关键词： mortality cardiovascular alcohol

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Removal of arsenate and arsenite from aqueous solution by waste cast iron

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Journal of Environmental Sciences 2012年第4期24卷 589-595页

作者： Nag-Choul Choi Song-Bae kim Soon-Oh kim Jae-won Lee jun-Boum Park Department of Rural Systems Engineering Seoul National UniversitySeoul 151-921Republic of Korea Department of Earth and Environmental Sciences and Research Institute of Natural Science Gyeongsang National UniversityJinju 660-701Republic of Korea JIU Corporation 154-3 Samsung-dongGangnam-guSeoul 135-879Republic of Korea Department of Civil and Environmental Engineering Seoul National UniversitySeoul 151-742Republic of Korea

The removal of As（III） and As（V） from aqueous solution was investigated using waste cast iron, which is a byproduct of the iron casting process in foundries. Two types of waste cast iron were used in the experiment： grind precipitate dust （GPD） and cast iron shot （CIS）. The X-ray diffraction analysis indicated the presence of Fe~ on GPD and CIS. Batch experiments were performed under different concentrations of As（III） and As（V） and at various initial pH levels. Results showed that waste cast iron was effective in the removal of arsenic. The adsorption isotherm study indicated that the Langmuir isotherm was better than the Freundlich isotherm at describing the experimental result. In the adsorption of both As（III） and As（V）, the adsorption capacity of GPD was greater than CIS, mainly due to the fact that GPD had higher surface area and weight percent of Fe than CIS. Results also indicated the removal of As（III） and As（V） by GPD and CIS was influenced by the initial solution pH, generally decreasing with increasing pH from 3.0 to 10.5. In addition, both GPD and CIS were more effective at the removal of As（III） than As（V） under given experimental conditions. This study demonstrates that waste cast iron has potential as a reactive material to treat wastewater and groundwater containing arsenic.

关键词： waste cast iron arsenic removal sorption batch experiment

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Is it now possible to transition from laparoscopic liver resection to robotic liver resection?

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 557-559页

作者： Kyeong Sik kim Dae won jun Department of General Surgery College of MedicineHanyang UniversitySeoulKorea Department of Internal Medicine College of MedicineHanyang UniversitySeoulKorea Hanyang Institute of Bioscience and Biotechnology Hanyang UniversitySeoulKorea

Minimally invasive surgery(MIS)has significantly progressed and emerged as the preferred approach for various gastrointestinal procedures,including gastrectomy,cholecystectomy,and various colorectal surgeries(1).However,the widespread acceptance of robotic surgery in liver resection has encountered obstacles,attributed to factors such as the lack of appropriate surgical instruments,the intricate learning curve,and safety ***,the utilization of MIS in liver resection is linked to decreased blood loss,reduced post-operative pain,shorter hospital stays,and lower morbidity rates compared to both open and laparoscopic liver resection procedures(2).

关键词： Laparoscopic liver resection robotic liver resection minimally invasive surgery(MIS)

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Coexisting cytomegalovirus colitis in an immunocompetent patient with Clostridioides difficile colitis:A case report

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World Journal of Clinical Cases 2023年第10期11卷 2343-2348页

作者： jun Hyoung kim Hee-Sung kim Hye won Jeong Department of Internal Medicine Chungbuk National University HospitalCheongju 28644ChungbukSouth Korea Department of Internal Medicine Chungbuk National University College of MedicineCheongju 28644ChungbukSouth Korea

BACKGROUND Clostridioides difficile(***)colitis is one of the most common infections in hospitalized patients,characterized by fever and *** usually improves after appropriate antibiotic treatment;if not,comorbidities should be ***(CMV)colitis is a possible co-existing diagnosis in patients with *** infection with poor treatment ***,compared with immunocompromised patients,CMV colitis in immunocompetent patients is not well *** SUMMARY We present an unusual case of co-existing CMV colitis in an immunocompetent patient with *** *** 80-year-old female patient was referred to the infectious disease department due to diarrhea,abdominal discomfort,and fever for 1 wk during her hospitalization for *** toxin B polymerase chain reaction on stool samples was *** *** infection was diagnosed,oral vancomycin treatment was *** symptoms including diarrhea,fever and abdominal discomfort improved for ten ***,the symptoms worsened again with bloody diarrhea and ***,a sigmoidoscopy was performed for evaluation,showing a longitudinal ulcer on the sigmoid *** biopsy confirmed CMV colitis,and the clinical symptoms improved after using *** Co-existing CMV colitis should be considered in patients with aggravated *** infection on appropriate treatment,even in immunocompetent hosts.

关键词： Cytomegalovirus Clostridioides difficile Coinfection Colitis Immunocompetent Case report

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