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World Journal of Clinical Cases 2023年第1期11卷 218-224页

作者： Sehan kim jong hee Sun Hongsik kim hee Kyung kim Yaewon Yang Jun Su Lee In Ah Choi Hye Sook Han Department of Internal Medicine Chungbuk National University HospitalCheongju 28644South Korea Department of Gastroenterology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Internal Medicine Chungbuk National University HospitalChungbuk National University College of MedicineCheongju 28644South Korea

BACKGROUND Immune checkpoint inhibitor(ICI)-induced rheumatic immune-related adverse events(ir AEs)have been infrequently reported,and the treatment of severe or refractory arthritis as ir AEs has not been established *** SUMMARY The patient was a 67-year-old man with a history of well-controlled foot psoriasis who presented with *** had received pembrolizumab for metastatic gastric adenocarcinoma 2 mo *** examination revealed erythematous swelling in the distal interphalangeal joints,left shoulder,and both *** had plaque psoriasis with psoriatic nail dystrophy and dactylitis in the distal joints of the fingers and *** markers including C-reactive protein and erythrocyte sedimentation rate were elevated but rheumatoid factor and anticyclic citrullinated peptide antibody were *** patient was diagnosed with psoriatic arthritis(PsA)and started on methylprednisolone 1 mg/kg/day after pembrolizumab ***,despite 1 wk of methylprednisolone treatment,PsA worsened;hence,leflunomide and methotrexate were *** 4 wk of steroid treatment,PsA worsened and improved repeatedly with steroid ***,the therapy was intensified to include etanercept,a tumor necrosis factor inhibitor,which ultimately resulted in adequate PsA *** This is the first report of ICI-induced PsA in a gastric cancer *** rheumatic ir AEs with refractory severe arthritis may require disease-modifying anti-rheumatic drugs and long-term management.

关键词： Pembrolizumab Psoriatic arthritis Disease-modifying anti-rheumatic drugs Gastric cancer Case report

Primary duodenal dedifferentiated liposarcoma:A case report and literature review

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World Journal of Clinical Cases 2022年第6期10卷 2007-2014页

作者： Nah Ihm kim Ji Shin Lee Chan Choi jong hee Nam Yoo Duk Choi hee Joon kim Sung Sun kim Department of Pathology Chonnam National University HospitalGwangju 61469South Korea Department of Pathology Chonnam National University Hwasun HospitalHwasun 58128South Korea Department of Surgery Chonnam National University HospitalGwangju 61469South Korea

BACKGROUND Dedifferentiated liposarcoma(DDLPS)is an extremely rare neoplasm that exhibits various *** tumor is characterized by immunoreactivity to MDM2 and CDK4 and can be confirmed by detecting MDM2 amplification via fluorescence in situ hybridization(FISH).Herein,we report an unusual case of DDLPS arising from the *** SUMMARY A 64-year-old man presented with repeated abdominal pain and weight *** studies revealed a mass of the duodenum involving the *** patient was treated with pylorus-preserving ***,the tumor showed a high-grade *** demonstrated that the tumor cells were positive for MDM2 and CDK4 ***2 amplification was detected via FISH,leading to the final diagnosis of *** surgery,the patient was treated in the intensive care unit due to peritonitis,and died 60 d after *** To the best of the authors’knowledge,this is the first case of primary duodenal DDLPS in Korea and the third case in the English-language *** must be taken not to misdiagnose DDLPS as another high-grade *** should be in the differential diagnosis list.

关键词： Liposarcoma Primary Small bowel Duodenum Immunohistochemistry Case report

Characteristics of damaged layer in micro-machining of copper material

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中国有色金属学会会刊：英文版 2009年第B9期19卷 295-300页

作者： Dong-hee KWON Jeong-Suk kim Myung-Chang KANG Se-Hun KWON jong-Hwan LEE School of Mechanical Engineering Pusan National University National Core Research Center for Hybrid Materials Solution Pusan National University Department of Mechatronics Busan College of Korea Polytechnic Ⅶ

The study on damaged layer is necessary for improving the machinability in micro-machining because the damaged layer affects the micro mold life and micro machine parts. This study examined the ultra-precision micro-machining characteristics, such as cutting speed, feed rate and cutting depth, of a micro-damaged layer produced by an ultra-high speed air turbine spindle. The micro cutting force, surface roughness and plastic deformation layer were investigated according to the machining conditions. The damaged layer was measured using optical microscope on samples prepared through metallographic techniques. The scale of the damaged layer depends on the cutting process parameters, particularly, the feed per tooth and axial depth of the cut. According to the experimental results, the depth of the damaged layer is increased by increasing the feed per tooth and cutting depth, also the damaged layer occurs less in down-milling compared with up-milling during the micro-machining operation.

关键词：机械加工性微观特征损伤层铜材样品制备技术微型机器切削速度切削深度

Double-chambered left ventricle with a thrombus in an asymptomatic patient:A case report

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World Journal of Clinical Cases 2024年第2期12卷 460-465页

作者： Narae kim In-Ho Yang Hui-Jeong Hwang Il-Suk Sohn Department of Medicine Kyung Hee UniversitySeoul 02447South Korea Department of Cardiology Kyung Hee University Hospital at GangdongSeoul 05278South Korea

BACKGROUND Double-chambered left ventricle(DCLV)is an extremely rare congenital disease in which the left ventricle(LV)is divided by abnormal muscle *** to its rarity,there is a lack of data on the disease,including its diagnosis,treatment,and ***,we report a case in which DCLV was diagnosed and followed *** SUMMARY A 45-year-old man presented to our hospital due to abnormal findings on an electrocardiogram recorded during a health *** had no specific cardiac symptoms,comorbidities or relevant past medical *** revealed that the LV was divided into two by muscle *** were no findings of ischemia on coronary angiography and coronary computed tomography angiography performed to exclude differential *** comprehensive analysis of the images,DCLV was *** it seemed to be asymptomatic DCLV,we decided the patient was to be observed without administering any ***,follow-up echocardiography revealed a thrombus in the accessory chamber(AC).Anticoagulant medication was initiated,the thrombus resolved,and the patient is currently undergoing follow-up without any specific *** Asymptomatic,uncomplicated DCLV was diagnosed through multimodal imaging;however,a thrombus in the AC occurred during the *** findings highlight that multimodal imaging is essential in diagnosing DCLV,and that anticoagulation is important in its management.

关键词： Double-chambered left ventricle Congenital heart disease Left ventricular aneurysm Echocardiography Coronary computed tomography angiography Contrast echocardiography Case report

Uterine rupture due to adenomyosis in an adolescent:A case report and review of literature

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World Journal of Clinical Cases 2023年第32期11卷 7888-7894页

作者： Nah Ihm kim Ji Shin Lee jong hee Nam Department of Pathology Chonnam National University HospitalGwangju 61469South Korea Department of Pathology Chonnam National University Hwasun HospitalHwasun 58128South Korea Department of Pathology Chonnam National University Medical SchoolGwangju 61469South Korea

BACKGROUND Uterine rupture is a fatal medical complication with a high mortality *** cases of uterine rupture occur in late pregnancy or during labor and are mainly related to uterine scarring due to previous surgical *** is a possible risk factor for uterine ***,spontaneous uterine rupture due to severe adenomyosis in a non-gravida-teenaged female has not been reported in the literature to *** SUMMARY A 16-year-old girl was referred to our hospital for acute abdominal pain and hypovolemic shock with a blood pressure of 90/50 *** studies revealed a huge endometrial mass with multiple nodules in the lung,suggesting lung *** patient underwent an emergency total hysterectomy and wedge resection of the lung ***,the uterus showed diffuse adenomyosis with glandular and stromal *** nodules were endometrioma with massive *** demonstrated that the tumor cells were positive for PAX8,ER,and PR expression,leading to a final diagnosis of pulmonary endometriosis and uterine *** surgery,the patient remains in good condition without *** This is the first case of spontaneous uterine rupture due to adenomyosis in a nongravida adolescent.

关键词： Uterus Adenomyosis Malignancy Endometrioma Case report

A comparative study on machine learning-based classification to find photothrombotic lesion in histological rabbit brain images

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Journal of Innovative Optical Health Sciences 2021年第6期4卷 81-89页

作者： Sang hee Jo Yoonhee kim Yoon Bum Lee Sung Suk Oh jong-ryul Choi School of Biomedical Engineering Daegu Catholic University(DCU)Gyeongsan 38430Republic of Korea Medical Device Development Center Daegu-Gyeongbuk Medical Innovation Foundation(DGMIF) Daegu 41061Republic of Korea Laboratory Animal Center Daegu-Gyeongbuk Medical Innovation Foundation(DGMIF) Daegu 41061Republic of Korea

Recently,research has been conducted to assist in the processing and analysis of histopathological images using machine learning *** this study,we established machine learning-based algorithms to detect photothrombotic lesions in histological images of photothrombosis-induced rabbit *** machine learning-based algorithms for binary classification were applied,and the accu-racies were compared to classify normal tissues and photothrombotic *** lesion classification model consisting of a 3-layered neural network with a rectified linear unit(ReLU)activation function,Xavier initialization,and Adam optimization using datasets with a unit size of 128×128 pixels yielded the highest accuracy(0.975).In the validation using the tested histological images,it was confirmed that the model could identify regions where brain damage occurred due to photochemical ischemic *** the development of machine learning-based photothrombotic lesion classi-fication models and performance comparisons,we confirmed that machine learning algorithms have the potential to be utilized in histopathology and various medical diagnostic techniques.

关键词： Machine learning histopathological images photothrombotic lesion rabbit brain binary classification logistic regression multi-layer neural networks

Do brood parasitic Common Cuckoos develop brood patches during the breeding season?

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Avian Research 2024年第3期15卷 363-368页

作者： Jun-Seo Go Hae-Ni kim Sue-Jeong Jin Myeong-Chan Cha heesoo Lee Jin-Won Lee Korea Institute of Ornithology&Department of Biology Kyung Hee University02447SeoulRepublic of Korea Bird Research SaeZiP 12504YangpyeongRepublic of Korea

Many birds develop brood patches on their ventral apterium under hormonal regulation to effectively transmit body heat to eggs during *** developed patch has several characteristics,including de-feathering,vascularization,and ***,little is known about whether avian brood parasites that do not incubate their eggs exhibit brood patch development during the breeding *** this study,we measured the size of the ventral apterium in 114 Common Cuckoos(Cuculus canorus)captured in the field throughout the breeding season and examined the appearance of the ventral apterium to confirm the development of brood *** also examined whether morphological traits and various factors correlated with the size of the ventral apterium(sternal apterium and abdominal apterium)and how it changed during the breeding *** found no clear signs of brood patch development in Common Cuckoos captured throughout the breeding season,indicating that they likely did not develop brood patches on the ventral apterium during this *** also found that ventral apterium size was positively correlated with wing length and body *** addition,Common Cuckoos with newly growing feathers on the boundary of the ventral apterium with pteryla were frequently observed as seasons progressed to the *** conclusion,Common Cuckoos exhibit neither brood patch development nor the vestigial characteristics of ancestral brood patches,except for the growth of feathers on boundary the ventral *** studies examining brood patches across different groups of avian brood parasites are valuable for enhancing our understanding of the developmental and physiological adaptations of avian brood parasites.

关键词： Brood parasitism Brood patch Common Cuckoo Pterylosis Re-feathering Ventral apterium

Relative skeletal muscle mass and non-alcoholic fatty liver disease: from association to causation

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Hepatobiliary Surgery and Nutrition 2019年第5期8卷 509-511页

作者： hee Yeon kim jong Young Choi Yong-Moon Park Division of Hepatology Department of Internal MedicineCollege of MedicineThe Catholic University of KoreaSeoulKorea Epidemiology Branch National Institute of Environmental Health SciencesNational Institutes of HealthResearch Triangle ParkNCUSA

The prevalence of nonalcoholic fatty liver disease(NAFLD)and its associated metabolic risk factors,including obesityand metabolic syndrome,have increased over the lastdecade in both developed and developing countries(1).NAFLD is considered to be the hepatic manifestation ofmetabolic syndrome and insulin resistance which is oneof multiple hits leading to NAFLD(2).

关键词： NAFLD liver hepatic

Targeted knockout of duox causes defects in zebrafish growth, thyroid development, and social interaction

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Journal of Genetics and Genomics 2019年第2期46卷 101-104页

作者： jong-Su Park Tae-Ik Choi Oc-hee kim Ted Inpyo Hong Woo-Keun kim Won-Jae Lee Cheol-hee kim Department of Biology Chungnam National University Biosystem Research Group Korea Institute of Toxicology School of Biological Sciences Seoul National University

Reactive oxygen species(ROS) are believed to be inevitable and toxic by-products produced during cellular respiration. However,several lines of evidence show that diverse extracellular signals can activate ROS product... 详细信息

关键词： KO In Targeted knockout of duox causes defects in zebrafish growth thyroid development and social interaction