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Actinomycosis of the appendix mimicking appendiceal tumor:A case report

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World Journal of Gastroenterology 2010年第3期16卷 395-397页

作者： Sang-Yun Lee Hee-jin Kwon jin-Han Cho Jong-Young Oh kyung-jin nam jin-Hwa Lee Seong-Kuk Yoon Myong-jin Kang jin-Sook Jeong Department of Radiology Dong-A University Hospital Department of Pathology Dong-A University Hospital

Actinomycosis is an uncommon chronic infectious disease. Common sites of involvement include the cervicofacial, thoracic and abdominopelvic regions. In abdominopelvic actinomycosis, the ileocecal region, including the appendix, is the most commonly involved site. In some reports, limited appendiceal actinomycosis has revealed a thickened appendiceal wall with peri-appendiceal inflammation as acute appendicitis or perforated appendicitis. We experienced pathologically confirmed intraluminal limited appendiceal actinomycosis without peri-appendiceal infiltration. Here, we report the computed tomography and ultrasound findings.

关键词： Actinomyces Actinomycosis Appendiceal neoplasms Appendicitis

Splenic infarction associated with sorafenib use in a hepatocellular carcinoma patient

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World Journal of Gastroenterology 2011年第2期17卷 267-270页

作者： Sang Ock Kim Sang Young Han Yang Hyun Baek Sung Wook Lee Ji Sun Han Byung Geun Kim jin Han Cho kyung jin nam Department of Gastroenterology and Hepatology Dong-A University HospitalDongdaesin-dong Seo-gu Busan 602-103 South Korea Dong-A University Collegeof Medicine 3-ga Dongdaesing-dong Seo-gu Busan 602-103South Korea Department of Radiology Dong-AUniversity Hospital Dongdaesin-dong Seo-gu Busan 602-103South Korea

Sorafenib,a multitargeted tyrosine kinase inhibitor,has been shown to improve survival in patients with advanced hepatocellular carcinoma(HCC).As the clinical use of sorafenib increases,many adverse effects have been reported,such as hand-foot skin reaction,diarrhea,anorexia,asthenia,alopecia,weight loss,hypertension and arterial ***,there are no prior reports of splenic infarction as an adverse effect of ***,a case of splenic infarction in a patient with HCC who was treated with sorafenib is reported. The patient had no other predisposing factors to explain the splenic infarction except for the administration of *** splenic infarction improved after sorafenib was discontinued;however,the HCC progressed.

关键词： Hepatocellular carcinoma Sorafenib Tyrosine kinase inhibitor Adverse effects Splenic infarction

Efficacy of hepatic arterial infusion chemotherapy in advanced hepatocellular carcinoma

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World Journal of Gastroenterology 2012年第26期18卷 3426-3434页

作者： Yang Hyun Baek Kyoung Tae Kim Sung Wook Lee jin Sook Jeong Byeong Ho Park kyung jin nam jin Han Cho Young Hoon Kim Young Hoon Roh Hyung Sik Lee Young Min Choi Sang Young Han Department of Internal Medicine Dong-A University College of MedicineBusan 602-103South Korea Department of Pathology Dong-A University College of MedicineBusan 602-103South Korea Department of Radiology Dong-A University College of MedicineBusan 602-103South Korea Department of Surgery Dong-A University College of MedicineBusan 602-103South Korea Department of Radiation Oncology Dong-A University College of MedicineBusan 602-103South Korea

AIM:To investigate the efficacy of hepatic arterial infusion chemotherapy(HAIC) using floxuridine(FUDR) in patients with advanced hepatocellular carcinoma(HCC) confined to the ***:Thirty-four patients who had advanced HCC with unresectability or unsuccessful previous therapy in the absence of extrahepatic metastasis were treated with intra-arterial FUDR chemotherapy at ourhospital between March 2005 and May *** the 34 patients,9 patients were classified as Child class C,and 18 patients had portal vein tumor thrombus(PVTT).One course of chemotherapy consisted of continuous infusion of FUDR(0.3 mg/kg during day 1-14) and dexamethasone(10 mg on day 1,4,7 and 11),and this treatment was repeated every 28 ***:Two patients(5.9%) displayed a complete response,and 12 patients(35.3%) had a partial *** tumor control rate was 61.8%.The median overall survival times were 15.3 mo,12.4 mo and 4.3 mo for the patients who were classified as Child class A,Child class B and Child class C,respectively(P = 0.0392).The progression-free survival was 12.9 mo,7.7 mo and 2.6 mo for the patients who were classified as Child class A,Child class B and Child class C,respectively(P = 0.0443).The cumulative survival differed significantly according to the Child-Pugh classification and the presence of *** addition to hepatic reserve capacity and PVTT,the extent of HCC was an independent factor in determining a poor *** most common adverse reactions to HAIC were mucositis,diarrhea and peptic ulcer disease,but most of these complications were improved by medical treatment and/or a delay of ***:The present study demonstrates that intra-arterial FUDR chemotherapy is a safe and effective treatment for advanced HCC that is recalcitrant to other therapeutic modalities,even in patients with advanced cirrhosis.

关键词： Hepatic arterial infusion chemotherapy Floxuridine Advanced hepatocellular carcinoma Child-Pugh classification Portal vein tumor thrombus

Male metaplastic breast cancer with poor prognosis:A case report

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World Journal of Clinical Cases 2022年第15期10卷 4964-4970页

作者： Hyun Yul Kim Seungju Lee Dong-il Kim Chang Shin Jung Jee Yeon Kim kyung jin nam Ki Seok Choo Youn Joo Jung Department of Surgery Pusan National University Yangsan HospitalPusan National University School of MedicineGyeongnam 50612South Korea Department of Pathology Pusan National University Yangsan HospitalPusan National University School of MedicineGyeongnam 50612South Korea Department of Radiology Pusan National University Yangsan HospitalPusan National University School of MedicineGyeongnam 50612South Korea

BACKGROUND Metaplastic breast cancer(MBC)is a rare subtype of breast *** constitute less than 1%of breast cancer cases and are much rarer in *** are few reports of MBC because of its ***,an aggressive type of cancer,is refractory to common treatment modalities of breast cancer and has a poor *** SUMMARY We report a case of MBC in a 78-year-old *** visited our clinic with a palpable mass on the left breast with no masses in the axillary *** had previously undergone robot-assisted laparoscopic radical prostatectomy for prostate cancer,but there was no family history of *** breast mass was visible on ultrasonography,mammography,and magnetic resonance imaging,and chest computed tomography revealed a lung mass in the posterior basal segment of the right lower *** patient was diagnosed with metaplastic carcinoma on core needle biopsy with lung *** mastectomy with sentinel lymph node biopsy and video-assisted segmentectomy of the right lung was ***,multiple metastases appeared 3 mo after surgery in the brain,chest,and abdomen,and the patient died 5 mo after the initial *** MBC is an aggressive and extremely rare breast cancer *** case reports are needed to determine the optimal treatment.

关键词： Breast neoplasm Male Triple-negative breast cancer Metaplastic breast cancer Adjuvant treatment Case report

Therapeutic efficacy and stent patency of transhepatic portal vein stenting after surgery

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World Journal of Gastroenterology 2016年第44期22卷 9822-9828页

作者： Ung Bae Jeon Chang Won Kim Tae Un Kim Ki Seok Choo Joo Yeon Jang kyung jin nam Chong Woo Chu Je Ho Ryu Department of Radiology Pusan National University Yangsan Hospital Department of Radiology Medical Research Institute Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology Pusan National University Hospital Department of Surgery Pusan National University Yangsan Hospital

AIM To evaluate portal vein(PV) stenosis and stent patency after hepatobiliary and pancreatic surgery, using abdominal computed tomography(CT).METHODS Percutaneous portal venous stenting was attempted in 22 patients with significant PV stenosis(> 50%)-after hepatobiliary or pancreatic surgery- diagnosed by abdominal CT. Stents were placed in various stenotic lesions after percutaneous transhepatic portography. Pressure gradient across the stenotic segment was measured in 14 patients. Stents were placed when the pressure gradient across the stenotic segment was > 5 mm Hg or PV stenosis was > 50%, as observed on transhepatic portography. Patients underwent followup abdominal CT and technical and clinical success, complications, and stent patency were *** Stent placement was successful in 21 patients(technical success rate: 95.5%). Stents were positioned through the main PV and superior mesenteric vein(n = 13), main PV(n = 2), right and main PV(n = 1), left and main PV(n = 4), or main PV and splenic vein(n = 1). Patients showed no complications after stent placement. The time between procedure and final follow-up CT was 41-761 d(mean: 374.5 d). Twenty stents remained patent during the entire follow-up. Stent obstruction-caused by invasion of the PV stent by a recurrent tumor- was observed in 1 patient in a follow-up CT performed after 155 d after the procedure. The cumulative stent patency rate was 95.7%. Small in-stent low-density areas were found in 11(55%) patients; however, during successive follow-up CT, the extent of these areas had *** Percutaneous transhepatic stent placement can be safe and effective in cases of PV stenosis after hepatobiliary and pancreatic surgery. Stents show excellent patency in follow-up abdominal CT, despite development of small in-stent low-density areas.

关键词： Liver Vein Stent Computed tomography Surveillance Efficace

Alleviatory effect of isoquercetin on benign prostatic hyperplasia via IGF-1/PI3K/Akt/mTOR pathway

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Food Science and Human Wellness 2024年第3期13卷 1698-1710页

作者： Young-jin Choi Meiqi Fan Nishala Erandi Wedamulla Yujiao Tang Eun-kyung Kim Department of Food Science and Nutrition Dong-A UniversityBusan 49315Republic of Korea Center for Silver-targeted Biomaterials Brain Busan 21 Plus programDong-A UniversityBusan 49315Republic of Korea Department of Health Sciences the Graduate School of Dong-A UniversityBusan 49315Republic of Korea Division of Food Bioscience College of Biomedical and Health SciencesKonkuk UniversityChungju 27478Republic of Korea Department of Export Agriculture Faculty of Animal Science and Export AgricultureUva Wellassa UniversityBadulla 90000Sri Lanka School of Bio-Science and Food Engineering Changchun University of Science and TechnologyChangchun 130600China Nutritional Education Major Graduate School of EducationDong-A UniversityBusan 49315Republic of Korea Nutrinomics Lab.Co. Ltd.Busan 49315Republic of Korea

We evaluated the effect of isoquercetin(quercetin-O-3-glucoside-quercetin,IQ)as a functional component of Abeliophyllum disistichum Nakai ethanol extract(ADLE)on prostate cell proliferation and apoptosis and its effects on the IGF-1/PI3K/Akt/mTOR pathway in benign prostatic hyperplasia(BPH).Metabolites in ADLE were analyzed using UHPLC-qTOF-MS and *** was orally administered(1 or 10 mg/kg)to a testosterone propionate-induced BPH rat model,and its effects on the prostate weight were *** effect of IQ on androgen receptor(AR)signaling was analyzed in LNCaP *** IGF-1 and IQ affect the IGF-1/PI3K/Akt/mTOR pathway in BPH-1 cells was also *** metabolites in ADLE were identified and quantified,which confirmed that ADLE contained abundant IQ(20.88 mg/g).IQ significantly reduced the prostate size in a concentration-dependent manner in a BPH rat model,and significantly decreased the expression of AR signaling factors in the rat prostate tissue and LNCaP cells in a concentration-dependent *** also inhibited the PI3K/AKT/mTOR pathway activated by IGF-1 treatment in BPH-1 *** BPH-1 cells,IQ led to G0/G1 arrest and suppressed the expression of proliferation factors while inducing ***,IQ shows potential for use as a pharmaceutical and nutraceutical for BPH.

关键词： Isoquercetin Benign prostatic hyperplasia Androgen receptor signaling PI3K/Akt/mtor pathway

Vertical plane depth-resolved surface potential and carrier separation characteristics in flexible CZTSSe solar cells with over 12% efficiency

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Carbon Energy 2024年第3期6卷 36-52页

作者： Dae-Ho Son Ha kyung Park Dae-Hwan Kim jin-Kyu Kang Shi-Joon Sung Dae-Kue Hwang Jaebaek Lee Dong-Hwan Jeon Yunae Cho William Jo Taeseon Lee JunHo Kim Sang-Hoon nam Kee-Jeong Yang Division of Energy Technology DGISTDaeguRepublic of Korea Research Center for Thin Film Solar Cells DGISTDaeguRepublic of Korea Department of Physics Ewha Womans UniversitySeoulRepublic of Korea Department of Physics Incheon National UniversityIncheonRepublic of Korea Department of Mechanical Engineering Massachusetts Institute of TechnologyCambridgeMassachusettsUSA

Cu2ZnSn(S,Se)4(CZTSSe)solar cells have resource distribution and economic *** main cause of their low efficiency is carrier loss resulting from recombination of photo-generated electron and *** overcome this,it is important to understand their electron-hole behavior *** determine the carrier separation characteristics,we measured the surface potential and the local current in terms of the absorber *** elemental variation in the intragrains(IGs)and at the grain boundaries(GBs)caused a band edge shift and bandgap(Eg)*** the absorber surface and subsurface,an upward Ec and Ev band bending structure was observed at the GBs,and the carrier separation was *** the absorber center,both upward Ec and Ev and downward Ec-upward Ev band bending structures were observed at the GBs,and the carrier separation was *** improve the carrier separation and suppress carrier recombination,an upward Ec and Ev band bending structure at the GBs is desirable.

关键词： carrier separation CZTSSe flexible solar cell local current surface potential

Electrochemically Deposited CZTSSe Thin Films for Monolithic Perovskite Tandem Solar Cells with Efficiencies Over 17%

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Energy & Environmental Materials 2024年第1期7卷 151-156页

作者： Sun kyung Hwang Ik Jae Park Se Won Seo Jae Hyun Park So Jeong Park jin Young Kim Department of Materials Science and Engineering Seoul National University Department of Applied Physics Sookmyung Women’s University Research Institute of Advanced Materials and Systems Sookmyung Women’s University Research Institute of Advanced Materials (RIAM) Seoul National University

In spite of the high potential economic feasibility of the tandem solar cells consisting of the halide perovskite and the kesterite Cu2ZnSn（S,Se）4（CZTSSe）,they have rarely been demonstrated due to the difficulty i... 详细信息

关键词： CZTSSe monolithic tandem solar cells perovskite solution process surface roughness control

Machine-learned wearable sensors for real-time hand-motion recognition: toward practical applications

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National Science Review 2024年第2期11卷 231-263页

作者： kyung Rok Pyun Kangkyu Kwon Myung jin Yoo Kyun Kyu Kim Dohyeon Gong Woon-Hong Yeo Seungyong Han Seung Hwan Ko Department of Mechanical Engineering Seoul National University IEN Center for Human-Centric Interfaces and Engineering Institute for Electronics and NanotechnologyGeorgia Institute of Technology School of Electrical and Computer Engineering Georgia Institute of Technology Department of Chemical Engineering Stanford University Department of Mechanical Engineering Ajou University George W.Woodruff School of Mechanical Engineering Georgia Institute of Technology Institute of Advanced Machinery and Design(SNU-IAMD) Seoul National University

Soft electromechanical sensors have led to a new paradigm of electronic devices for novel motion-based wearable applications in our daily lives. However, the vast amount of random and unidentified signals generated by complex body motions has hindered the precise recognition and practical application of this technology. Recent advancements in artificial-intelligence technology have enabled significant strides in extracting features from massive and intricate data sets, thereby presenting a breakthrough in utilizing wearable sensors for practical applications. Beyond traditional machine-learning techniques for classifying simple gestures, advanced machine-learning algorithms have been developed to handle more complex and nuanced motion-based tasks with restricted training data sets. Machine-learning techniques have improved the ability to perceive, and thus machine-learned wearable soft sensors have enabled accurate and rapid human-gesture recognition, providing real-time feedback to users. This forms a crucial component of future wearable electronics, contributing to a robust human–machine interface. In this review, we provide a comprehensive summary covering materials, structures and machine-learning algorithms for hand-gesture recognition and possible practical applications through machine-learned wearable electromechanical sensors.

关键词： wearable sensor soft electronics artificial intelligence machine learning human–machine interfaces gesture recognition