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Minimally invasive image-guided therapy of primary and metastatic pancreatic cancer

World Journal of Gastroenterology 2021年第27期27卷 4322-4341页

作者： Andras Bibok dae won kim Mokenge Malafa Bela Kis Department of Diagnostic Imaging and Interventional Radiology H.Lee Moffitt Cancer CenterTampaFL 33612United States Department of Transplantation&Surgery Radiology UnitSemmelweis UniversityBudapest 1085Hungary Department of Gastrointestinal Oncology H.Lee Moffitt Cancer CenterTampaFL 33612United States

Pancreatic cancer is a challenging malignancy with limited treatment options and poor life *** only curative option is surgical resection,but only 15%-20%of patients are resectable at presentation because more than 50%of patients has distant metastasis at diagnosis and the rest of them has locally advanced pancreatic cancer(LAPC).The standard of care first line treatment for LAPC patients is chemotherapy with or without radiation *** developments in minimally invasive ablative techniques may add to the treatment armamentarium of *** are increasing number of studies evaluating these novel ablative techniques,including radiofrequency ablation,microwave ablation,cryoablation and irreversible *** studies which included pancreatic tumor ablation,demonstrated improved overall survival in LAPC ***,the exact protocols are yet to set up to which stage of the treatment algorithm ablative techniques can be added and in what kind of treatment *** with metastatic pancreatic cancer has dismal prognosis with 5-year survival is only 3%.The most common metastatic site is the liver as 90%of pancreatic cancer patients develop liver *** is the primary treatment option for patients with metastatic pancreatic ***,when the tumor is not responding to chemotherapy or severe drug toxicity develops,locoregional liver-directed therapies can provide an opportunity to control intrahepatic disease progression and improve survival in selected *** the last decade new therapeutic options arose with the advancement of minimally invasive technologies to treat pancreatic cancer *** new therapies have been a topic of increasing interest due to the severe prognostic implications of locally advanced and metastatic pancreatic cancer and the low comorbid risk of these *** review summarizes new ablative options for patients with LAPC and percutaneous liver-directed th

关键词： Pancreatic neoplasms Interventional radiology Ablation techniques Electroporation Radiofrequency ablation Therapeutic embolization

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Entacapone promotes hippocampal neurogenesis in mice

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Neural Regeneration Research 2021年第6期16卷 1005-1010页

作者： dae Young Yoo Hyo Young Jung Woosuk kim Kyu Ri Hahn Hyun Jung Kwon Sung Min Nam Jin Young Chung Yeo Sung Yoon dae won kim In Koo Hwang Department of Anatomy and Cell Biology College of Veterinary Medicineand Research Institute for Veterinary ScienceSeoul National UniversitySeoulSouth Korea Department of Anatomy College of MedicineSoonchunhyang UniversityCheonanSouth Korea Department of Biomedical Sciences and Research Institute for Bioscience and BiotechnologyHallym UniversityChuncheonSouth Korea Department of Biochemistry and Molecular Biology Research Institute of Oral SciencesCollege of DentistryGangneung-Wonju National UniversityGangneungSouth Korea Department of Anatomy College of Veterinary MedicineKonkuk UniversitySeoulSouth Korea Department of Veterinary Internal Medicine and Geriatrics College of Veterinary MedicineKangwon National UniversityChuncheonSouth Korea

Entacapone,a catechol-O-methyltransferase inhibitor,can strengthen the therapeutic effects of levodopa on the treatment of Parkinson’s ***,few studies are reported on whether entacapone can affect hippocampal neurogenesis in *** investigate the effects of entacapone,a modulator of dopamine,on proliferating cells and immature neurons in the mouse hippocampal dentate gyrus,60 mice(7 weeks old)were randomly divided into a vehicle-treated group and the groups treated with 10,50,or 200 mg/kg *** results showed that 50 and 200 mg/kg entacapone increased the exploration time for novel object *** staining results revealed that after entacapone treatment,the numbers of Ki67-positive proliferating cells,doublecortin-positive immature neurons,and phosphorylated cAMP response element-binding protein(pCREB)-positive cells were significantly *** blot analysis results revealed that treatment with tyrosine kinase receptor B(TrkB)receptor antagonist significantly decreased the exploration time for novel object recognition and inhibited the expression of phosphorylated TrkB and brain-derived neurotrophic factor(BDNF).Entacapone treatment antagonized the effects of TrkB receptor *** results suggest that entacapone treatment promoted hippocampal neurogenesis and improved memory function through activating the BDNF-TrkB-pCREB *** study was approved by the Institutional Animal Care and Use Committee of Seoul National University(approval ***-130730-1)on February 24,2014.

关键词： brain-derived neurotrophic factor entacapone hippocampus neurogenesis neurotrophic factor phosphorylated cAMP response element-binding protein tyrosine kinase receptor B receptor

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Time- and cell-type specific changes in iron, ferritin, and transferrin in the gerbil hippocampal CA1 region after transient forebrain ischemia

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Neural Regeneration Research 2016年第6期11卷 924-930页

作者： dae Young Yoo Ki-Yeon Yoo Joon Ha Park Hyun Jung Kwon Hyo Young Jung Jong Whi kim Goang-Min Choi Seung Myung Moon dae won kim Yeo Sung Yoon Moo-Ho won In Koo Hwang Department of Anatomy and Cell Biology College of Veterinary Medicine and Research Institute for Veterinary Science Seoul National University Department of Oral Anatomy Research Institute of Oral Sciences College of Dentistry Gangneung-Wonju National University Department of Neurobiology School of Medicine Kangwon National University Department of Biochemistry and Molecular Biology Research Institute of Oral Sciences College of Dentistry Gangneung-Wonju National University Department of Thoracic and Cardiovascular Surgery Chuncheon Sacred Heart Hospital College of Medicine Hallym University Department of Neurosurgery Dongtan Sacred Heart Hospital College of Medicine Hallym University

In the present study, we used immunohistochemistry and western blot analysis to examine changes in the levels and cellular localization of iron, heavy chain ferritin（ferritin-H）, and transferrin in the gerbil hippocampal CA1 region from 30 minutes to 7 days following transient forebrain ischemia. Relative to sham controls, iron reactivity increased significantly in the stratum pyramidale and stratum oriens at 12 hours following ischemic insult, transiently decreased at 1–2 days and then increased once again within the CA1 region at 4–7 days after ischemia. One day after ischemia, ferritin-H immunoreactivity increased significantly in the stratum pyramidale and decreased at 2 days. At 4–7 days after ischemia, ferritin-H immunoreactivity in the glial components in the CA1 region was significantly increased. Transferrin immunoreactivity was increased significantly in the stratum pyramidale at 12 hours, peaked at 1 day, and then decreased significantly at 2 days after ischemia. Seven days after ischemia, Transferrin immunoreactivity in the glial cells of the stratum oriens and radiatum was significantly increased. Western blot analyses supported these results, demonstrating that compared to sham controls, ferritin H and transferrin protein levels in hippocampal homogenates significantly increased at 1 day after ischemia, peaked at 4 days and then decreased. These results suggest that iron overload-induced oxidative stress is most prominent at 12 hours after ischemia in the stratum pyramidale, suggesting that this time window may be the optimal period for therapeutic intervention to protect neurons from ischemia-induced death.

关键词： ferritin transferrin hippocampal stratum minutes glial Ferritin hippocampus rabbit reactivity

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Neuroprotection of Chrysanthemum indicum Linne against cerebral ischemia/reperfusion injury by anti-inflammatory effect in gerbils

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Neural Regeneration Research 2016年第2期11卷 270-277页

作者： Ki-YeonYoo In Hye kim Jeong-Hwi Cho li Hyeon Ahn Joon Ha Park Jae-Chul Lee Hyun-Jin Tae dae won kim Jong-Dai kim Seongkweon Hong Moo-Ho won il Jun Kang Department of Oral Anatomy College of Dentistry and Research Institute of Oral Science Gangneung-Wonju National University GangneungRepublic of Korea Department of Neurobiology School of Medicine Kangwon National University Chuncheon Republic of Korea Department of Biomedical Science Research Institute of Bioscience and Biotechnology Hallym University Chuncheon Republic of Korea Department of Biochemistry and Molecular Biology College of Dentistry and Research Institute of Oral Science Gangneung-Wonju NationalUniversity Gangneung Republic of Korea Division of Food Biotechnology School of Biotechnology Kangwon National University Chuncheon Republic of Korea Department of Surgery School of Medicine Kangwon National University Chuncheon Republic of Korea Department of Food Science and Nutrition Hallym University Chuncheon Republic of Korea

In this study, we tried to verify the neuroprotective effect of Chrysanthemum indicum Linne（CIL） extract, which has been used as a botanical drug in East Asia, against ischemic damage and to explore the underlying mechanism involving the anti-inflammatory approach. A gerbil was given CIL extract for 7 consecutive days followed by bilateral carotid artery occlusion to make a cerebral ischemia/reperfusion model. Then, we found that CIL extracts protected pyramidal neurons in the hippocampal CA1 region（CA1） from ischemic damage using neuronal nucleus immunohistochemistry and Fluoro-Jade B histofluorescence. Accordingly, interleukin-13 immunoreactivities in the CA1 pyramidal neurons of CIL-pretreated animals were maintained or increased after cerebral ischemia/reperfusion. These findings indicate that the pre-treatment of CIL can attenuate neuronal damage/death in the brain after cerebral ischemia/reperfusion via an anti-inflammatory approach.

关键词： nerve regeneration transient cerebral ischemia delayed neuronal death pyramidal neurons inflammatory cytokines neural regeneration

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Gender differences in clinical outcomes of acute myocardial infarction undergoing percutaneous coronary intervention: insights from the KAMIR-NIH Registry

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Journal of Geriatric Cardiology 2020年第11期17卷 680-693页

作者： Myunhee Lee dae-won kim Mahn-won Park Kyusup Lee Kiyuk Chang Wook Sung Chung Tae Hoon Ahn Myung Ho Jeong Seung-Woon Rha Hyo-Soo kim Hyeon Cheol Gwon In Whan Seong Kyung Kuk Hwang Shung Chull Chae Kwon-Bae kim Young Jo kim Kwang Soo Cha Seok Kyu Oh Jei Keon Chae Ji-Hoon Jung 无 KAMIR-NIH registry investigators Division of Cardiology Daejeon St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Division of Cardiology Seoul St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Gachon University Gil Medical CenterIncheonSouth Korea Chonnam National University Hospital GwangjuSouth Korea d Korea University Korea University Guro Hospital SeoulSouth Korea Seoul National University Hospital SeoulSouth Korea Sungkyunkwan Universtiy Samsung Medical CenterSeoulSouth Korea Chungnam National University Hospital DaejeonSouth Korea Chungbuk National University Hospital CheongjuSouth Korea Kyungpook National University Hospital DaeguSouth Korea Keimyung University Dongsan Medical Center DaeguSouth Korea Yeungnam University Hospital DaeguSouth Korea Pusan National University Hospital BusanSouth Korea wonkwang University Hospital IksanSouth Korea Chonbuk National University Hospital JeonjuSouth Korea Institute of Toxicology DaejeonSouth Korea 不详

Background There are numerous but conflicting data regarding gender differences in outcomes following percutaneous coronary intervention(PCI). Furthermore, gender differences in clinical outcomes with acute myocardial infarction(AMI) following PCI in Asian population remain uncertain because of the under-representation of Asian in previous trials. Methods A total of 13,104 AMI patients from Korea Acute Myocardial Infarction Registry-National Institute of Health(KAMIR-NIH) between November 2011 and December 2015 were classified into male(n = 8021, 75.9%) and female(n = 2547, 24.1%). We compared the demographic, clinical and angiographic characteristics, 30-days and 1-year major adverse cardiac and cerebrovascular events(MACCE) in women with those in men after AMI by using propensity score(PS) matching. Results Compared with men, women were older, had more comorbidities and more often presented with non-ST segment elevation myocardial infarction(NSTEMI) and reduced left ventricular systolic function. Over the median follow-up of 363 days, gender differences in both 30-days and 1-year MACCE as well as thrombolysis in myocardial infarction minor bleeding risk were not observed in the PS matched population(30-days MACCE: 5.3% vs. 4.7%, log-rank P = 0.494, HR = 1.126, 95% CI: 0.800-1.585;1-year MACCE: 9.3% vs. 9.0%, log-rank P = 0.803, HR = 1.032, 95% CI: 0.802-1.328;TIMI minor bleeding: 4.9% vs. 3.9%, log-rank P = 0.215, HR = 1.255, 95% CI: 0.869-1.814). Conclusions Among Korean AMI population undergoing contemporary PCI, women, as compared with men, had different clinical and angiographic characteristics but showed similar 30-days and 1-year clinical outcomes. The risk of bleeding after PCI was comparable between men and women during one-year follow up.

关键词： Acute myocardial infarction Asian population Gender difference Percutaneous coronary intervention

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The 5-year functional outcomes after radical prostatectomy： a real-life experience in Korea

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Asian Journal of Andrology 2010年第6期12卷 835-840页

作者： Sung Kyu Hong Seung Hwan Doo dae Sung kim won Ki Lee Hong Zoo Park Ji Hyun Park Seong Jin Jeong Cheol Yong Yoon Seok-Soo Byun Sang Eun Lee Department of Urology Seoul National University Bundang Hospital Seongnam Kyunggi-do 463-707 Korea

We investigated the functional outcomes regarding erectile function and urinary continence up to 5 years following radical prostatectomy （RP） in a cohort of Korean men. We retrospectively analyzed the clinicopathologic data of 85 Korean men who received open uni- or bilateral nerve-sparing RP for clinically localized prostate cancer and were followed up for at least 5 years postoperatively. From medical records, patients＇ status regarding urinary and erectile function at baseline and postoperative followups after RP was assessed. At 24 and 60 months after RP, proportions of subjects continent （no pads used） were 89.4% and 97.6%, respectively （P = 0.007）. Excluding subjects （n = 24） who preoperatively reported having severe erectile dysfunction or lacked relevant informations, proportions of subjects capable of having vaginal intercourse regardless of erectile aid usage were 47.5% and 37.7% at 24 and 60 months from RP, respectively （P = 0.022）. Patient＇s age at surgery （P = 0.047） and salvage radiation therapy （P = 0.026） were observed to be significant predictors of having erections sufficient for intercourse at 60 months from RP in multivariate analysis. Our results showed that while patients＇ postoperative status regarding urinary continence at 2 years from RP is generally maintained or improved at 5 year point, erectile function was observed to significantly declined from 2 years to 5 years following RP. Such decline in erectile function following RP may be more significant among men who were relatively older at surgery or those who received salvage therapy during postoperative follow-ups.

关键词： impotence prostatectomy prostatic neoplasm urinary incontinence

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Incremental age-related one-year MACCE after acute myocardial infarction in the drug-eluting stent era （from KAMIR-NIH registry）

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Journal of Geriatric Cardiology 2018年第9期15卷 574-584页

作者： dae-won kim Sung-Ho Her Ha Wook Park Kiyuk Chang Wook Sung Chung Ki Bae Seung Myung Ho Jeong Hyo-Soo kim Hyeon Cheoi Gwon In Whan Seong Kyung Kuk Hwang Shung Chull Chae Kwon-Bae kim Young Jo kim Kwang Soo Cha Seok Kyu Oh Jei Keon Chae Ji-Hoon Jung Division of Cardiology Daejeon St. Mary's Hospital College of Medicine the Catholic University of Korea Seoul South Korea Division of Cardiology Seoul St. Mary's Hospital College of Medicine the Catholic University of Korea Seoul South Korea Chonnam National University Hospital Gwangju South Korea Seoul National University Hospital Seoul South Korea Sungkyunkwan Universtiy Samsung Medical Center Seoul South Korea Chungnam National University Hospital Daejeon South Korea Chungbuk National University Hospital Cheongju South Korea Kyungpook National University Hospital Daegu South Korea Keimyung University Dongsan Medical Center Daegu South Korea Yeungnam University Hospital Daegu South Korea Pusan National University Hospital Busan South Korea wonkwang University Hospital Iksan South Korea Chonbuk National University Hospital Jeonju South Korea Statistical Manager Institute of Toxicology Daejeon South Korea

Objectives To evaluate the age-related one-year major adverse cardiocerebrovascular events （MACCE） after percutaneous coronary intervention （PCI） in acute myocardial infarction （AMI）. We analyzed the association between age and one-year MACCE after AMI. Methods A total of 13,104 AMI patients from Korea Acute Myocardial Infarction Registry-National Institue of Health （KAMIR-NIH） between November 2011 and December 2015 were classified into four groups according to age （Group I, 〈 60 years, n = 4199; Group II, 60-70 years, n = 2577; Group III; 70-80 years, n = 2774; Group IV, ≥ 80 years, n = 1018）. Patients were analyzed for one-year composite of MACCE （cardiac death, myocardial infarction, target vessel revascularization, cerebrovascular events） after AMI. Results The one-year MACCE in AMI were 3.5% （Group I）, 6.3% （Group II）, 9.6% （Group III） and 17.6% （Group IV）. After adjustment for confounding para- meters, the analysis results showed that patients with AMI had incremental risk of one-year MACCE [Group II, adjusted hazard ratios （aHR） = 1.224, 95% CI： 0.965-1.525, P = 0.096; Group III, aHR = 1.316, 95% CI： 1.037-1.671, P= 0.024; Group IV, aHR = 1.975, 95% CI： 1.500-62.601, P〈 0.001） compared to Group I. Especially, cardiac death in the composite of primary end point played a major role in this effect （Group II, aHR = 1.335, 95% CI： 0.941-1.895, P= 0.106; Group III, aHR = 1.575, 95% CI： 1.122-2.210, P= 0.009; Group IV, aHR = 2.803, 95% CI： 1.937-4.054, P 〈 0.001）. Conclusions Despite advanced techniques and medications for PCI in AMI, age still exerts a powerful influence in clinical outcomes. Careful approaches, even in the modem era of developed cardiology are needed for aged-population in AMI intervention.

关键词： Acute myocardial infarction Aged-population Major adverse cardiocerebrovascular events

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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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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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Optimal Cyber Attack Strategy Using Reinforcement Learning Based onCommon Vulnerability Scoring System

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Computer Modeling in Engineering & Sciences 2024年第11期141卷 1551-1574页

作者： Bum-Sok kim Hye-won Suk Yong-Hoon Choi dae-Sung Moon Min-Suk kim Department of Electronic Information System Engineering Sangmyung UniversityCheonan31066Republic of Korea Department of Human Intelligence&Robot Engineering Sangmyung UniversityCheonan31066Republic of Korea Intelligent Convergence Research Laboratory Electronics and Telecommunications Research InstituteDaejeon34129Republic of Korea

Currently,cybersecurity threats such as data breaches and phishing have been on the rise due to the many differentattack strategies of cyber attackers,significantly increasing risks to individuals and *** technologies such as intrusion detection have been developed to respond to these cyber ***,advanced integrated cybersecurity that incorporates Artificial Intelligence has been the *** this paper,wepropose a response strategy using a reinforcement-learning-based cyber-attack-defense simulation tool to addresscontinuously evolving cyber ***,we have implemented an effective reinforcement-learning-basedcyber-attack scenario using Cyber Battle Simulation,which is a cyber-attack-defense *** scenarioinvolves important security components such as node value,cost,firewalls,and ***,we applieda new vulnerability assessment method based on the Common Vulnerability Scoring *** approach candesign an optimal attack strategy by considering the importance of attack goals,which helps in developing moreeffective response *** attack strategies are evaluated by comparing their performance using a variety ofReinforcement Learning *** experimental results show that RL models demonstrate improved learningperformance with the proposed attack strategy compared to the original *** particular,the success rateof the Advantage Actor-Critic-based attack strategy improved by 5.04 percentage points,reaching 10.17%,whichrepresents an impressive 98.24%increase over the original ***,the proposed method canenhance security and risk management capabilities in cyber environments,improving the efficiency of securitymanagement and significantly contributing to the development of security systems.

关键词： Reinforcement learning common vulnerability scoring system cyber attack cyber battle simulation

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