维普中文期刊产品整合服务
129篇 您的检索式:作者名="In Chung"
    题名 作者 年代 出处 被引量
1Mitophagy links oxidative stress conditions and neurodegenerative diseases显示文摘Mitophagy is activated by a number of stimuli, including hypoxia, energy stress, and increased oxidative phosphorylation activity. Mitophagy is associated with oxidative stress conditions and central neurodegenerative diseases. Proper regulation of mitophagy is crucial for maintaining homeostasis; conversely, inadequate removal of mitochondria through mitophagy leads to the generation of oxidative species, including reactive oxygen species and reactive nitrogen species, resulting in various neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. These diseases are most prevalent in older adults whose bodies fail to maintain proper mitophagic functions to combat oxidative species. As mitophagy is essential for normal body function, by targeting mitophagic pathways we can improve these disease conditions. The search for effective remedies to treat these disease conditions is an ongoing process, which is why more studies are needed. Additionally, more relevant studies could help establish therapeutic conditions, which are currently in high demand. In this review, we discuss how mitophagy plays a significant role in homeostasis and how its dysregulation causes neurodegeneration. We also discuss how combating oxidative species and targeting mitophagy can help treat these neurodegenerative diseases.Ulfuara Shefa Na Young Jeong In Ok Song Hyung-Joo Chung Dokyoung Kim Junyang Jung Youngbuhm Huh 2019Neural Regeneration Research2019,14,5:21
2Benefit of neoadjuvant concurrent chemoradiotherapy for locally advanced perihilar cholangiocarcinoma显示文摘AIM To clarify the role of neoadjuvant concurrent chemoradiotherapy(NACCRT) followed by surgical resection for localized or locally advanced perihilar cholangiocarcinoma(CCA).METHODS We retrospectively reviewed 57 patients who underwent surgical resection with or without NACCRT for perihilar CCA; 12 patients received NACCRT and 45 patients did not received NACCRT. Patients with locally advanced perihilar CCA requiring NACCRT were defined as follows:(1) a mass involving unilateral branches of the portal vein or hepatic artery with insufficient volume of the anticipated remnant lobe; or(2) an infiltrating mass in the main portal vein that was too long for reconstruction, identified at preoperative staging. RESULTS The median disease-free survival(DFS) durations of the neoadjuvant and non-neoadjuvant CCRT groups were26.0 and 15.1 mo, respectively(P = 0.91). The median overall survival(OS) durations of the neoadjuvant and non-neoadjuvant CCRT groups were 32.9 and 27.1 mo, respectively(P = 0.26). The NACCRT group showed a downstaging tendency compared to the non-NACCRT group as compared with the tumor stage confirmed by histological examination after surgery and the tumor stage confirmed by imaging test at the time of diagnosis(P = 0.01). CONCLUSION NACCRT does not prolong DFS and OS in localized or locally advanced perihilar CCA. However, NACCRT may allow tumor downstaging and improve tumor resectability.Jang Han Jung Hyun Jik Lee Hee Seung Lee Jung Hyun Jo In Rae Cho Moon Jae Chung Jeong Youp Park Seung Woo Park Si Young Song Seungmin Bang 2017World Journal of Gastroenterology2017,23,18:21
3Risk prediction platform for pancreatic fistula after pancreatoduodenectomy using artificial intelligence显示文摘BACKGROUND Despite advancements in operative technique and improvements in postoperative managements,postoperative pancreatic fistula(POPF)is a life-threatening complication following pancreatoduodenectomy(PD).There are some reports to predict POPF preoperatively or intraoperatively,but the accuracy of those is questionable.Artificial intelligence(AI)technology is being actively used in the medical field,but few studies have reported applying it to outcomes after PD.AIM To develop a risk prediction platform for POPF using an AI model.METHODS Medical records were reviewed from 1769 patients at Samsung Medical Center who underwent PD from 2007 to 2016.A total of 38 variables were inserted into AI-driven algorithms.The algorithms tested to make the risk prediction platform were random forest(RF)and a neural network(NN)with or without recursive feature elimination(RFE).The median imputation method was used for missing values.The area under the curve(AUC)was calculated to examine the discriminative power of algorithm for POPF prediction.RESULTS The number of POPFs was 221(12.5%)according to the International Study Group of Pancreatic Fistula definition 2016.After median imputation,AUCs using 38 variables were 0.68±0.02 with RF and 0.71±0.02 with NN.The maximal AUC using NN with RFE was 0.74.Sixteen risk factors for POPF were identified by AI algorithm:Pancreatic duct diameter,body mass index,preoperative serum albumin,lipase level,amount of intraoperative fluid infusion,age,platelet count,extrapancreatic location of tumor,combined venous resection,co-existing pancreatitis,neoadjuvant radiotherapy,American Society of Anesthesiologists’score,sex,soft texture of the pancreas,underlying heart disease,and preoperative endoscopic biliary decompression.We developed a web-based POPF prediction platform,and this application is freely available at http://gffzz52cab37b8d4e4d2ch0fnpc5wb0nqw6w5p.ffgz.tsg.suse.edu.cn This study is the first to predict POPF with multiple risk factors using AI.This platform is reliable(AUC 0.74),so it could be used to select patients who need especially intense therapy and to preoperatively establish an effective treatment strategy.In Woong Han Kyeongwon Cho Youngju Ryu Sang Hyun Shin Jin Seok Heo Dong Wook Choi Myung Jin Chung Oh Chul Kwon Baek Hwan Cho 2020World Journal of Gastroenterology2020,26,30:12
4Evaluation of esophageal function in patients with esophageal motor abnormalities using multichannel intraluminal impedance esophageal manometry显示文摘AIM: To evaluate the functional aspect of esophageal motility in healthy subjects and in patients who were referred for esophageal function testing using multichannel intraluminal impedance-esophageal manometry (MII-EM), and to assess the clinical utility of MII-EM. METHODS: From September 2003 to January 2004, we performed the MII-EM on healthy volunteers and all the patients who were referred for esophageal function testing. Each patient received 10 liquid and 10 viscous swallows. We analyzed the results, the impedance and the manometric findings. Some of the subjects had additional ambulatory 24-h pH study performed to diagnose gastroesophageal reflux disease (GERD). RESULTS: Among 89 studied subjects, the MII-EM findings showed normal esophageal motility in 50 (56.17%), ineffective esophageal motility (IEM) in 17 (19.10%), nutcracker esophagus in 7 (7.86%), achalasia in 4 (4.49%), and scleroderma esophagus in 11 (12.35%) cases. The completeness and the speed of bolus transit were in the order of nutcracker esophagus, normal manometry and IEM. Some of the swallows showing normal manometry and IEM had incomplete transit. In the achalasia and scleroderma esophagus, almost all the swallows had incomplete transit. The body amplitudes were higher for the swallows with complete transit than for the swallows with incomplete transit. There was not a significant difference in the manometric and impedance findings between the subjects with and without GERD. CONCLUSION: MII-EM is a useful tool in assessing theesophageal function in the patients having esophageal motility abnormality. The primary factors influencing the bolus transit are the amplitude of the esophageal body and normal peristalsis.Yu Kyung Cho Myung-Gyu Choi Jae Myung Park Jung Hwan Oh Chang Nyol Paik Joon Wook Lee In Seok Lee Sang Woo Kim In-Sik Chung 2006World Journal of Gastroenterology2006,12,39:8
5Clinical outcomes of self-expandable metal stents in palliation of malignant anastomotic strictures caused by recurrent gastric cancer显示文摘AIM:To examine the technical feasibility and clinical outcomes of the endoscopic insertion of a self-expandable metal stent(SEMS) for the palliation of a malignant anastomotic stricture caused by recurrent gastric cancer.METHODS:The medical records of patients, who had obstructive symptoms caused by a malignant anastomotic stricture after gastric surgery and underwent endoscopic insertion of a SEMS from January 2001 to December 2007 at Kangnam St Mary's Hospital, were reviewed retrospectively.RESULTS:Twenty patients(15 male, mean age 63 years) were included.The operations were a total gastrectomy with esophagojejunostomy(n = 12), subtotal gastrectomy with Billroth-—migration occurred with a covered stent in 3 patients who underwent a subtotal gastrectomy with Billroth-reconstruction.Two cases of partial stent migration were easily treated with a second stent or stent repositioning.The median stent patency was 56 d(range, 5-439 d).The median survival was 83 d(range, 12-439 d).CONCLUSION:Endoscopic insertion of a SEMS provides safe and effective palliation of a recurrent anastomotic stricture caused by gastric cancer.A meticulous evaluation of the presence of other strictures before inserting the stent is essential for symptom improvement.Yu Kyung Cho Sang Woo Kim Kwan Woo Nam Jae Hyuck Chang Jae Myung Park Jeong-Jo Jeong In Seok Lee Myung-Gyu Choi In-Sik Chung 2009World Journal of Gastroenterology2009,15,28:5
6Incremental age-related one-year MACCE after acute myocardial infarction in the drug-eluting stent era (from KAMIR-NIH registry)显示文摘ObjectivesTo 评估年龄相关的一个年专业在在尖锐心肌的梗塞(AMI ) 的经皮的冠的干预(一种总线标准) 以后的不利 cardiocerebrovascular 事件(MACCE ) 。我们从在 2011 年 11 月之间的健康(KAMIR-NIH ) 的朝鲜尖锐心肌的梗塞登记公民 Institue 在 13,104 个 AMI 病人全部的 AMI.MethodsA 以后分析了在年龄和一个年 MACCE 之间的协会, 2015 年 12 月根据年龄被分类进四个组(组我, < 60 年, n = 4199;组 II, 60-70 年, n = 2577;组织 III;70-80 年, n = 2774;组 IV, 80 年, n = 1018 ) 。病人们为 MACCE 合成的一个年被分析(心脏的死亡,心肌的梗塞,目标容器 revascularization,脑血管的事件) 在 AMI.ResultsThe 一个年以后,在 AMI 的 MACCE 是 3.5%( 组我) , 6.3%( 组 II ) , 9.6%( 组 III ) 并且 17.6%( 组 IV ) 。在为使参数惊讶的调整以后,分析结果证明有 AMI 的病人有一个年 MACCE 的增长风险[组 II,调整危险比率(aHR )= 1.224, 95% CI:0.965-1.525, P = 0.096;组 III, aHR = 1.316, 95% CI:1.037-1.671, P = 0.024;组 IV, aHR = 1.975, 95% CI:1.500-62.601, P < 0.001 ) 与相比组我。特别,心脏的死亡在玩的主要结束点合成在这效果的一个主要角色(组 II, aHR = 1.335, 95% CI:0.941-1.895, P = 0.106;组 III, aHR = 1.575, 95% CI:1.122-2.210, P = 0.009;组 IV, aHR = 2.803, 95% CI:1.937-4.054, P < 0.001 ).ConclusionsDespite 在 AMI 为一种总线标准推进了技术和药,年龄仍然在临床的结果施加强大的影响。小心的途径,甚至在发达心病学的现代时代被需要为在 AMI 干预年老人口。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 2018Journal of Geriatric Cardiology2018,15,9:4
7Gender differences in clinical outcomes of acute myocardial infarction undergoing percutaneous coronary intervention: insights from the KAMIR-NIH Registry显示文摘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.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 KAMIR-NIH registry investigators 2020Journal of Geriatric Cardiology2020,17,11:3
8Inverse correlation between gastroesophageal reflux disease and atrophic gastritis assessed by endoscopy and serology显示文摘BACKGROUND Helicobacter pylori(H.pylori)infection is known to prevent the occurrence of gastroesophageal reflux disease(GERD)by inducing gastric mucosal atrophy.However,little is known about the relationship between atrophic gastritis(AG)and GERD.AIM To confirm the inverse correlation between AG and the occurrence and severity of GERD.METHODS Individuals receiving health checkups who underwent upper gastrointestinal endoscopy at Seoul National University Healthcare System Gangnam Center were included.The grade of reflux esophagitis was evaluated according to the Los Angeles classification.Endoscopic AG(EAG)was categorized into six grades.Serologic AG(SAG)was defined as pepsinogen I≤70 ng/m L and pepsinogen I/II ratio≤3.0.The association between the extent of EAG and SAG and the occurrence and severity of GERD was evaluated using multivariate logistic regression analysis.RESULTS In total,4684 individuals with GERD were compared with 21901 healthy controls.In multivariate logistic regression analysis,advanced age,male sex,body mass index>23 kg/m2,presence of metabolic syndrome,current smoking,and alcohol consumption were associated with an increased risk of GERD.Seropositivity for H.pylori immunoglobulin G antibodies was associated with a decreased risk of GERD.There was an inverse correlation between the extent of EAG and occurrence of GERD:Odds ratio(OR),1.01[95%confidence interval(CI):0.90-1.14]in C1,0.87(0.78-0.97)in C2,0.71(0.62-0.80)in C3,0.52(0.44-0.61)in O1,0.37(0.29-0.48)in O2,and 0.28(0.18-0.43)in O3.Additionally,the extent of EAG showed an inverse correlation with the severity of GERD.The presence of SAG was correlated with a reduced risk of GERD(OR=0.49,95%CI:0.28-0.87,P=0.014).CONCLUSION The extent of EAG and SAG exhibited strong inverse relationships with the occurrence and severity of GERD.AG followed by H.pylori infection may be independently protect against GERD.Yoo Min Han Su Jin Chung Seokha Yoo Jong In Yang Ji Min Choi Jooyoung Lee Joo Sung Kim 2022World Journal of Gastroenterology2022,28,8:3
9Is a split-dose regimen of 2 L polyethylene glycol plus ascorbic acid tolerable for colonoscopy in an early morning visit to a comprehensive medical check-up?显示文摘AIM To evaluate the effectiveness and tolerability of a split-dose 2L polyethylene glycol (PEG)/ascorbic acid(AA) regimen for healthy examinees who visited for comprehensive medical check-up in the early morning.METHODS From February 2015 to March 2015, examinees of average risk who were scheduled for a colonoscopy in the morning were retrospectively enrolled.RESULTS The 189 examinees were divided into split-dose and non-split-dose groups. The adequacy of bowel preparation for the split-dose group vs the non-splitdose group was 96.8% vs 85.2%, respectively, P<0.001, and the compliance of the last meal restrictionwas 74.6% vs 58.2%, respectively, P <0.001. The sleep disturbance (P<0.001) was more prevalent in the split-dose group, however the willingness to repeat the same preparation method (P=0.243) was not different in both groups. The split-dose regimen was the most important factor influencing adequate bowel preparation in multivariate analysis(HR=10.89, 95%CI: 6.53-18.17, P<0.001).CONCLUSION A split-dose regimen of 2L PEG/AA for an early morning colonoscopy was more effective and showed better compliance for diet restriction without any difference in satisfaction and discomfort. Introducing a split-dose regimen of 2L PEG/AA to morning colonoscopy examinees is effective and tolerable in a comprehensive medical check-up setting.Ji Yeon Seo Changhyun Lee Eun Hyo Jin Mi Hyun Yun Joo Hyun Lim Hae Yeon Kang Jong In Yang Su Jin Chung Sun Young Yang Joo Sung Kim 2017World Journal of Gastroenterology2017,23,6:2
10Endoscopic resection of duodenal neoplasms: a single-center study显示文摘Jong Won Sohn Seong Woo Jeon Chang Min Cho Min Kyu Jung Sung Kook Kim Dong Seok Lee Hyuk Su Son In Kwon Chung 2010Surgical Endoscopy2010,,12:2
11Suppression of laser-induced choroidal neovascularization by intravitreal injection of tristetraprolin显示文摘AIM: To examine the effect of intravitreal adenoviral vector-mediated tristetraprolin(Ad-TTP) on VEGF m RNA expression in a rat model of laser-induced choroidal neovascularization.METHODS: Ad-TTP was prepared using a commercial kit. Retinal laser-induced photocoagulation(10 spots per eye) was performed on rats in this experimental choroidal neovascularization(CNV) model. Rats were divided into four groups: control(single intravitreal injection of balanced salt solution, n =10), laser-induced CNV(photocoagulation only, n =20), laser-induced CNV plus Ad-TTP injection(photocoagulation plus a single intravitreal Ad-TTP injection, n =20) and Ad-TTP injection only(n =10). Changes in choroidal morphology were evaluated in ten rats in the laser only and the laser plus Ad-TTP groups. Two weeks after laser injury, the size of CNV was calculated by perfusion with high-molecular-weight fluorescein isothiocyanate(FITC)-dextran. VEGF m RNA expression in retina-choroid tissue from ten rats in each group was measured by reverse transcription polymerase chain reaction(RT-PCR). RESULTS: Two weeks after treatment, the area of laser-induced CNV was reduced by approximately 60% in the rats given the Ad-TTP injection compared with that in the laser-only group. There was a tendency toward decreased VEGF m RNA expression in the Ad-TTP injection groups.CONCLUSION: A single intravitreal injection of Ad-TTP significantly suppressed CNV size in this experimental laser-induced CNV model. Ad-TTP injection also decreased VEGF m RNA expression compared with that inthe laser-induced CNV group. The present study is meaningful as the first study to investigate the effect of tristetraprolin delivered via intravitreal injection.Yong Wun Cho Yong Seop Han In Young Chung Seong Jae Kim Seong Wook Seo Ji Myong Yoo Jong Moon Park 2014International Journal of Ophthalmology(English edition)2014,7,6:2
12Rapid species identification of pathogenic bacteria from a minute quantity exploiting three-dimensional quantitative phase imaging and artificial neural network显示文摘The healthcare industry is in dire need of rapid microbial identification techniques for treating microbial infections.Microbial infections are a major healthcare issue worldwide,as these widespread diseases often develop into deadly symptoms.While studies have shown that an early appropriate antibiotic treatment significantly reduces the mortality of an infection,this effective treatment is difficult to practice.The main obstacle to early appropriate antibiotic treatments is the long turnaround time of the routine microbial identification,which includes time-consuming sample growth.Here,we propose a microscopy-based framework that identifies the pathogen from single to few cells.Our framework obtains and exploits the morphology of the limited sample by incorporating three-dimensional quantitative phase imaging and an artificial neural network.We demonstrate the identification of 19 bacterial species that cause bloodstream infections,achieving an accuracy of 82.5%from an individual bacterial cell or cluster.This performance,comparable to that of the gold standard mass spectroscopy under a sufficient amount of sample,underpins the effectiveness of our framework in clinical applications.Furthermore,our accuracy increases with multiple measurements,reaching 99.9%with seven different measurements of cells or clusters.We believe that our framework can serve as a beneficial advisory tool for clinicians during the initial treatment of infections.Geon Kim Daewoong Ahn Minhee Kang Jinho Park DongHun Ryu YoungJu Jo Jinyeop Song Jea Sung Ryu Gunho Choi Hyun Jung Chung Kyuseok Kim Doo Ryeon Chung In Young Yoo Hee Jae Huh Hyun-seok Min Nam Yong Lee YongKeun Park 2022Light(Science & Applications)2022,11,7:2
13Distant skeletal muscle metastasis from intrahepatic cholangiocarcinoma presenting as Budd-Chiari syndrome显示文摘Intrahepatic cholangiocarcinoma is a malignant neoplasm arising from the biliary epithelium, which frequently invades adjacent organs or metastasizes to other visceral organs such as the lungs, bones, adrenals, and brain. However, distant skeletal muscle metastasis of cholangiocarcinoma has never been described before to the best of our knowledge and, furthermore, Budd-Chiari syndrome secondary to intrahepatic cholangiocarcinoma is also extremely rare. Here we present the first case overall of distant muscle metastasis from intrahepatic cholangiocarcinoma presenting as Budd-Chiari syndrome. A 44-year-old man admitted to the hospital with complaints of abdominal distension, edema of both legs, back pain and anorexia of 30 d' duration. Computed tomography and ultrasonography-guided percutaneous muscle biopsy established intrahepatic cholangiocarcinoma with disseminated thrombosis from inferior vena cava to bilateral iliac and femoral veins, and multiple skeletal muscle metastases in bilateral buttock and erector spinal muscle.Oh Sung Kwon Dae Won Jun Sang Heum Kim Mee Yeon Chung Nam In Kim Moon Hee Song Han Hyo Lee Seung Hwan Kim Yoon Ju Jo Young Sook Park Jong Eun Joo 2007World Journal of Gastroenterology2007,13,22:2
14Flexible thermocells for utilization of body heat显示文摘Hyeongwook Im Hyung Geun Moon Jeong Seok Lee In Young Chung Tae June Kang Yong Hyup Kim 2014Nano Research2014,7,4:2
15Beta-nerve growth factor gene therapy alleviates pyridoxine-induced neuropathic damage by increasing doublecortin and tyrosine kinase A in the dorsal root ganglion显示文摘Beta-nerve growth factor(β-NGF)is known to be a major leading cause of neuronal plasticity.To identify the possible action mechanisms ofβ-NGF gene therapy for sciatic nerve recovery,experimental dogs were randomly divided into control,pyridoxine,and pyridoxine+β-NGF groups.We observed chronological changes of morphology in the dorsal root ganglia in response to pyridoxine toxicity based on cresyl violet staining.The number of large neurons positive for cresyl violet was dramatically decreased after pyridoxine intoxication for 7 days in the dorsal root ganglia and the neuron number was gradually increased after pyridoxine withdrawal.In addition,we also investigated the effects ofβ-NGF gene therapy on neuronal plasticity in pyridoxine-induced neuropathic dogs.To accomplish this,tyrosine kinase receptor A(TrkA),βIII-tubulin and doublecortin(DCX)immunohistochemical staining was performed at 3 days after the last pyridoxine treatment.TrkA-immunoreactive neurons were dramatically decreased in the pyridoxine group compared to the control group,but strong TrkA immunoreactivity was observed in the small-sized dorsal root ganglia in this group.TrkA immunoreactivity in the dorsal root ganglia was similar betweenβ-NGF and control groups.The numbers ofβⅢ-tubulin-and DCX-immunoreactive cells decreased significantly in the pyridoxine group compared to the control group.However,the reduction ofβⅢ-tubulin-and DCX-immunoreactive cells in the dorsal root ganglia in theβ-NGF group was significantly ameliorated than that in the pyridoxine group.These results indicate thatβ-NGF gene therapy is a powerful treatment of pyridoxine-induced neuropathic damage by increasing the TrkA and DCX levels in the dorsal root ganglia.The experimental protocol was approved by the Institutional Animal Care and Use Committee(IACUC)of Seoul National University,South Korea(approval No.SNU-060623-1,SNU-091009-1)on June 23,2006 and October 9,2009,respectively.Hyun-Kee Cho Woosuk Kim Kwon-Young Lee Jin-Ok Ahn Jung Hoon Choi In Koo Hwang Jin-Young Chung 2020Neural Regeneration Research2020,15,1:2
16Clinical Application of Human Adipose Tissue–Derived Mesenchymal Stem Cells in Progressive Hemifacial Atrophy (Parry-Romberg Disease) With Microfat Grafting Techniques Using 3-Dimensional Computed Tomography and 3-Dimensional Camera显示文摘Kyung Suk Koh Tae Suk Oh Hoon Kim In Wook Chung Kang Woo Lee Hyo Bo Lee Eun Jung Park Jae Seob Jung Il Seob Shin Jeong Chan Ra Jong Woo Choi 2012Annals of Plastic Surgery2012,,3:2
17Inhibition of BET selectively eliminates undifferentiated pluripotent stem cells显示文摘Embryonic stem cells(ESCs) maintain their cellular identity through the systematic regulation of master transcription factors and chromatin remodeling complexes. Recent work has shown that the unusually large-scale enhancers—namely super-enhancers(SEs), on which BRD4, a member of the bromodomain and extraterminal domain(BET) family is highly enriched—could regulate pluripotency-related transcription factors. Moreover, inhibition of BRD4 binding on SEs has been shown to induce the differentiation of ESCs. However, the underlying mechanism of BRD4 inhibition-mediated stem cell differentiation remains elusive. Here we show that both mouse and human ESCs lose their capacity for self-renewal upon treatment with JQ1, a selective inhibitor of BET family including BRD4, with rapid suppression of pluripotency-associated genes. Notably, a high concentration of JQ1 could selectively eliminate ESCs via apoptosis, without affecting the functionality of differentiated somatic cells from ESCs, suggesting that inhibition of BET may have a beneficial effect on the development of pluripotent stem cell-based cell therapy.Jung Hyun Im Seon In Hwang Jong-Wan Kim soon-Jung Park Kyu-ree Kang Jueng Soo You Kee Pyo Kim Sung-Hwan Moon Hyuk-Jin Cha Hyung-Min Chung Hans R. Scholer Jung Keun Hyun DongWook Han 2018Science Bulletin2018,63,8:2
18Evaluation of non-ampullary duodenal polyps: Comparison of non-neoplastic and neoplastic lesions显示文摘AIM: To evaluate duodenal polyps, divided into nonneoplastic and neoplastic lesions. In addition, the clinical characteristics of duodenal hyperplastic polyps are determined. METHODS: We analyzed medical records of 50 114 consecutive patients submitted to for first diagnostic esophago-gastroduodenoscopy between January 2004 and December 2009. We excluded lesions on the ampulla of Vater and submucosal tumors. We studied 510 cases that were diagnosed endoscopically with duodenal polyps and enrolled a total of 221 cases that had undergone tissue biopsy. We analyzed the differences between non-neoplastic and neoplastic lesions, and determined the clinical features of duodenal hyperplastic polyps. RESULTS: Non-neoplastic lesions were found in 196 patients and neoplastic lesions in 25 patients. On uni-variate analysis, there were significant differences in shape, location, and size. Polyps more than 10 mm in diameter or polyps in the second portion had independent risk factors for being neoplastic lesions, as identified by multivariate analysis. In 23 cases of hyperplastic polyps (79.3%), they were accompanied by gastroduodenal pathology, which was possibly associated with Helicobacter pylori . CONCLUSION: Polyps of more than 10 mm or polyps in the second portion of the duodenum should be evaluated by histological examination.Sung Hoon Jung Woo Chul Chung Eun Jung Kim Seol Hye Kim Chang Nyol Paik Bo In Lee Young Seok Cho Kang-Moon Lee 2010World Journal of Gastroenterology2010,16,43:2
19Helicobacter pylori decreases p27 expression through the delta opioid receptor-mediated inhibition of histone acetylation within the p27 promoter显示文摘Sang Won Byun Young Jun Chang In Sik Chung Steven F. Moss Sung Soo Kim 2012Cancer Letters2012,,1:2
20Characteristics of polyvinylpyrrolidone layered silicate nanocomposites prepared by attrition ball milling 显示文摘Koo Chong - Min Ham Hyeong - Tack Choi Min - Ho Kim Sang - Ouk Chung In - Jae 2003Polymer2003,44,3:1
返回顶部 每页显示:
共7页 首页 上一页 第1页 下一页 末页 /7 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费