212 results on '"Hung-Jen Chen"'
Search Results
202. The changing pathogens of complicated parapneumonic effusions or empyemas in a medical intensive care unit.
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Chih-Yen Tu, Wu-Huei Hsu, Te-Chun Hsia, Hung-Jen Chen, Kuo-Liang Chiu, Liang-Wen Hang, and Chuen-Ming Shih
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PLEURAL effusions ,CHEST X rays ,CHEST paracentesis ,GRAM-positive bacteria ,GRAM-negative bacteria ,EMPYEMA ,INTENSIVE care units - Abstract
Objectives: To assess the incidence, pathogens, and outcome of complicated parapneumonic effusions or empyemas in a medical intensive care unit (MICU) patients with pleural effusions. Design and setting: Prospective study of febrile MICU patients with pleural effusion carried out in a tertiary care hospital between April 2001 and September 2003. Patients: The study included 175 patients with a temperature above 38° for more than 8 h with evidence of pleural effusion confirmed by chest radiography and ultrasound. Intervention: Routine thoracentesis and effusion cultures. Results: The prevalence of complicated parapneumonic effusions or thoracic empyemas in febrile MICU patients with pleural effusions was 45% (78/175). A total of 78 micro-organisms were isolated from the pleural fluid of 58 patients (positive microbiological culture 74%) including aerobic Gram-negative (n = 45), aerobic Gram-positive (n = 23), anaerobic (n = 5), Myobacterium tuberculosis (n = 3), and Candida (n = 2). The infection-related mortality rate of complicated parapneumonic effusions or empyemic patients in the MICU was 41% (32/78). Conclusion: The development of complicated parapneumonic effusions or thoracic empyemas in MICU patients is a high-mortality disease. The increasing incidence of aerobic Gram-negative pathogens in empyema has become a more urgent problem. [ABSTRACT FROM AUTHOR]
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- 2006
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203. Characteristics and Outcome of Liver Transplantation in Children with Alagille Syndrome: A Single-center Experience
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Allan M. Concejero, Chi-Ning Lee, Hung-Jen Chen, Ying-Hsien Huang, Chao-Long Chen, and Mao-Meng Tiao
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medicine.medical_specialty ,medicine.medical_treatment ,Liver transplantation ,Single Center ,Liver disease ,living donor liver transplant ,Cholestasis ,children ,Biliary atresia ,Laparotomy ,Alagille syndrome ,medicine ,Living Donors ,Humans ,Pediatrics, Perinatology, and Child Health ,Child ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,lcsh:RJ1-570 ,Infant ,lcsh:Pediatrics ,medicine.disease ,Surgery ,Liver Transplantation ,Survival Rate ,Treatment Outcome ,Liver biopsy ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,outcome ,business ,liver disease - Abstract
Background This study was carried out in Chang Gung Memorial Hospital-Kaohsiung Medical Center, Taiwan, with the aim of reviewing the characteristics and the outcome of liver transplantation (LT) in children with Alagille syndrome (AGS). Methods We performed a retrospective analysis of transplant records of children diagnosed with AGS and undergoing LT between 1987 and 2010. Results Nine patients underwent living donor LT. Cholestasis and characteristic facies were seen in all patients. Posterior embryotoxon was seen in 4/9 (44.4%), butterfly vertebrae in 3/9 (33.3%), heart defect (pulmonary stenosis in 2) in 3/9 (33.3%), and renal disease in 2/9 (22.2%) patients. Five cases had cholestasis prior to the age of 60 days, whereas four cases had cholestasis after 60 days of age. Iminodiacetic acid scans showed no excretion of isotope into the bowel in four cases and suggested a false diagnosis of biliary atresia. All patients underwent diagnostic laparotomy and liver biopsy. Results of liver biopsy showed characteristic features of paucity of interlobular bile ducts in all patients. Kasai portoenterostomy was not performed in any patient prior to being referred for LT. The mean age at the time of LT was 4.6 years. The 5-year overall survival rate after living donor LT was 88.9%. Conclusion Our conclusion is that the clinical features of AGS are informative. In addition, histological confirmation is important in the diagnosis. AGS children with severe liver disease had good prognoses with LT.
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204. Improvement of resistive switching characteristics in TiO2 thin films with embedded Pt nanocrystals.
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Wen-Yuan Chang, Kai-Jung Cheng, Jui-Ming Tsai, Hung-Jen Chen, Chen, Frederick, Ming-Jinn Tsai, and Tai-Bor Wu
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TITANIUM dioxide films ,THIN films ,NANOCRYSTALS ,CAPACITORS ,ELECTRIC equipment - Abstract
We have fabricated TiO
2 thin films with embedded Pt nanocrystals (Pt-NCs) and investigated the resistive switching characteristics for nonvolatile memory application. Reversible and steady bistable resistance switching behavior was observed for the Pt/TiO2 /Pt capacitors with Pt-NCs embedded in the TiO2 films. Moreover, an improvement in the stability of resistance switching and retention properties was also achieved from the embedding of uniform and fine Pt-NCs. [ABSTRACT FROM AUTHOR]- Published
- 2009
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205. High electromagnetic adsorption at radiofrequency by impedance matched carbon nanotube composites.
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Ya-Chun Chen, Ching-Chen Li, Yi-Fan Lee, Wei Chin, Yu-Hsien Lin, Sheng-Yi Lu, Ching-Tung Hsu, Sen-Hong Syue, Hung-Jen Chen, Bee-Yu Wei, Wen-Kuang Hsu, and Shih-Chin Chang
- Abstract
Polystyrene loaded with 4–5 wt.% carbon nanotubes exhibits a 94% electromagnetic adsorption at radiofrequency; the underlying mechanism involves impedance matching and maximization of energy transfer at the air–composite interface. [ABSTRACT FROM AUTHOR]
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- 2008
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206. Temporary transition in suspended carbon nanotubes.
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Sen-Hong Syue, Hsin-Fu Kuo, Ching-Tung Hsu, Hung-Jen Chen, Uei-Shin Chen, Wen-Kuang Hsu, and Han-Chang Shih
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CARBON nanotubes ,FIELD-effect transistors ,SEMICONDUCTORS ,POLARIZATION (Electricity) ,BORON ,PHASE transitions - Abstract
A semiconducting phase is temporarily present in doped carbon nanotube after field treatment and underlying mechanism involves chemical potential change and E
F movement by field induced charge accumulation. Metallic phase re-emerges as accumulated charges are released. [ABSTRACT FROM AUTHOR]- Published
- 2008
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207. Doped spiral alumina nanowires .
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Nien-Fang Wu, Hung-Jen Chen, Yu-Lun Chueh, Su-Jien Lin, Li-Jen Chou, and Wen-Kuang Hsu
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- 2005
208. C-Reactive Protein Controls IL-23 Production by Human Monocytes
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Dominique Baeten, Jeroen den Dunnen, Guillermo R. Griffith, Melissa Newling, Chiara Elisabeth Geyer, Lathees Sritharan, Hung-Jen Chen, Clinical Immunology and Rheumatology, AII - Inflammatory diseases, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, Medical Biochemistry, Graduate School, ACS - Atherosclerosis & ischemic syndromes, Infectious diseases, Amsterdam Gastroenterology Endocrinology Metabolism, and AII - Infectious diseases
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Transcriptional Activation ,QH301-705.5 ,medicine.medical_treatment ,Fc receptor ,Inflammation ,Monocytes ,Catalysis ,Article ,C-reactive protein ,Inorganic Chemistry ,Immune system ,IL-23 ,inflammatory bowel disease ,Sepsis ,medicine ,Interleukin 23 ,Humans ,RNA, Messenger ,Biology (General) ,Physical and Theoretical Chemistry ,QD1-999 ,Molecular Biology ,Cells, Cultured ,Spectroscopy ,Innate immune system ,biology ,Chemistry ,Monocyte ,Organic Chemistry ,Pattern recognition receptor ,General Medicine ,Computer Science Applications ,medicine.anatomical_structure ,Cytokine ,inflammation ,Immunology ,monocyte ,Interleukin-23 Subunit p19 ,biology.protein ,medicine.symptom - Abstract
C-reactive protein (CRP) is an acute-phase protein in humans that is produced in high quantities by the liver upon infection and under inflammatory conditions. Although CRP is commonly used as a marker of inflammation, CRP can also directly contribute to inflammation by eliciting pro-inflammatory cytokine production by immune cells. Since CRP is highly elevated in serum under inflammatory conditions, we have studied the CRP-induced cytokine profile of human monocytes, one of the main innate immune cell populations in blood. We identified that CRP is relatively unique in its capacity to induce production of the pro-inflammatory cytokine IL-23, which was in stark contrast to a wide panel of pattern recognition receptor (PRR) ligands. We show that CRP-induced IL-23 production was mediated at the level of gene transcription, since CRP particularly promoted gene transcription of IL23A (encoding IL-23p19) instead of IL12A (encoding IL-12p35), while PRR ligands induce the opposite response. Interestingly, when CRP stimulation was combined with PRR ligand stimulation, as for example, occurs in the context of sepsis, IL-23 production by monocytes was strongly reduced. Combined, these data identify CRP as a unique individual ligand to induce IL-23 production by monocytes, which may contribute to shaping systemic immune responses under inflammatory conditions.
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209. The modified SAVE score: predicting survival using urgent veno-arterial extracorporeal membrane oxygenation within 24 hours of arrival at the emergency department
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Cing Feng Wu, Kuo-Yang Huang, Shinn Jye Liang, Chia-Hsiang Li, Wei-Cheng Chen, Hung Jen Chen, Chih Wei Yao, and Chih Yeh Tu
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Mechanical ventilation ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Mortality rate ,Hazard ratio ,030208 emergency & critical care medicine ,Emergency department ,030204 cardiovascular system & hematology ,Critical Care and Intensive Care Medicine ,Confidence interval ,Surgery ,03 medical and health sciences ,surgical procedures, operative ,0302 clinical medicine ,Anesthesia ,Extracorporeal membrane oxygenation ,Medicine ,Arterial blood ,business ,Cohort study - Abstract
Although many risk models have been tested in patients who undergo extracorporeal membrane oxygenation, few have been assessed for patients who received veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support in the emergency department (ED). This study aimed to successfully predict outcomes of patients with cardiac or noncardiac failure who received VA-ECMO in the ED within 24 hours of arrival at the ED. This retrospective, observational cohort study included 154 patients, who were classified as cardiac (n = 127) and noncardiac (n = 27) patients and received VA-ECMO within 24 hours after arrival at the China Medical University Hospital ED in Taiwan between January 2009 and September 2014. We recorded mechanical ventilation settings, arterial blood gases, laboratory parameters including plasma lactate level, requirement of catecholamines, and risk scores at time of ECMO initiation. ECMO and mechanical ventilation support duration, length of stay in the hospital, and 90-day mortality data were also examined. The overall mortality rate was 64.9 %. We used “survival after veno-arterial ECMO (SAVE)” scores to assess survival prediction in survival and nonsurvival groups, which was statistically different (–3.2 vs. –8.3, p
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210. The impact of rescue or maintenance therapy with EGFR TKIs for Stage IIIb-IV non-squamous non-small-cell lung cancer patients requiring mechanical ventilation
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Te Chun Hsia, Hung Jen Chen, and Chih Yen Tu
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Oncology ,Male ,medicine.medical_specialty ,Lung Neoplasms ,medicine.medical_treatment ,Antineoplastic Agents ,EGFR TKI ,Respiratory failure ,Maintenance therapy ,Internal medicine ,Carcinoma, Non-Small-Cell Lung ,medicine ,Humans ,Epidermal growth factor receptor ,Intensive care medicine ,Lung cancer ,Protein Kinase Inhibitors ,SOFA score ,Aged ,Neoplasm Staging ,Retrospective Studies ,Mechanical ventilation ,Aged, 80 and over ,Performance status ,Respiratory distress ,biology ,business.industry ,Middle Aged ,medicine.disease ,Respiration, Artificial ,respiratory tract diseases ,ErbB Receptors ,Treatment Outcome ,Anesthesiology and Pain Medicine ,Multivariate Analysis ,biology.protein ,Female ,business ,Ventilator Weaning ,SAPS II score ,Stage IIIb-IV non-squamous NSCLC ,Research Article - Abstract
Background The toxicity of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) is less than that of cytotoxic agents. The reports of dramatic response and improvement in performance status with the use of EGFR TKIs may influence a physician’s decision-making for patients with non-squamous non-small cell lung cancer (NSCLC) and life-threatening respiratory distress. The aim of this study was to evaluate the outcome of rescue or maintenance therapy with EGFR TKI for stage IIIb-IV non-squamous NSCLC patients requiring mechanical ventilation. Methods Eighty-three Asian patients with stage IIIb-IV non-squamous NSCLC and who required mechanical ventilation between June 2005 and January 2010 were evaluated. Results Of the 83 patients, 16 (19%) were successfully weaned from the ventilator. The use of EGFR TKI as rescue or maintenance therapy during respiratory failure did not improve the rate of successful weaning (standard care 18% vs. with EGFR TKI, 22%; p = 0.81) in univariate and multivariate analyses. Conclusions Rescue or maintenance therapy with EGFR TKI for stage IIIb-IV non-squamous NSCLC patients requiring mechanical ventilation was not associated with better outcome. An end-of-life discussion should be an important aspect in the care of this group of patients, since only 19% were successfully weaned from mechanical ventilation.
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211. Kiebsiella pneumoniae Deep Neck Infection with Acute Necrotizing Esophagitis.
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Yi-Heng Liu, Yu-Sheng Lin, Hung-Jen Chen, Chih-Yen Tu, and Wel Chen
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- 2009
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212. Anti-IFN-γ autoantibodies in adults with disseminated nontuberculous mycobacterial infections are associated with HLA-DRB1* 16:02 and HLA-DQB1 *05:02 and the reactivation of latent varicella-zoster virus infection.
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Chih-Yu Chi, Chen-chung Chu, Jing-Pei Liu, Chia-Hao Lin, Mao-Wang Ho, Wen-Jyi Lo, Po-Chang Lin, Hung-Jen Chen, Chia-Huei Chou, Jia-Yih Feng, Chang-Phone Fung, Yuh-Pyng Sher, Chi-Yuan Li, Jen-Hsien Wang, and Cheng-Lung Ku
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AUTOANTIBODIES , *AUTOIMMUNE diseases , *MYCOBACTERIAL diseases , *VARICELLA-zoster virus diseases , *IMMUNOLOGIC diseases , *SALMONELLA diseases - Abstract
Adult patients with disseminated nontuberculous mycobacterial (dNTM) infections usually have severe immune system defects. Recently, several reports have shown that anti-IFN-γ autoantibodies may play an important role in the pathogenicity of dNTM infections. A considerable proportion of reported cases of anti-IFN-γ autoantibodies show either clinical or laboratory evidence of autoimmune disease. In this study, we identified 19 formerly healthy adults who later developed dNTM infections, and 17 were further investigated immunologically. High-titer anti-IFN-γ autoantibodies capable of inhibiting IL-12 production in vitro were found in the plasma of all of these patients. In addition to dNTM infection, 35% and 71% of our patients also suffered from salmonellosis and herpes zoster, respectively. This observation suggests that IFN-γ may be crucial in controlling salmonella infection and reactivating latent varicella-zoster virus (VZV) infection in humans. Two HLA alleles, DRB1*16:02 DQB1*05:02 (odds ratios 8.68, 95% CI: 3.47-21.90, P=1.1×10-6, Pc=3.08×10-5 and 7.16, 95% CI: 3.02-17.05, P=1×10-7, Pc=1.4×10-6, respectively), were found in 82% (14/17) of our patients. In conclusion, our data suggest that anti-IFN-γ autoantibodies may play a critical role in the pathogenesis of dNTM infections and reactivation of latent VZV infection and are associated with HLA-DRB1*16:02 and DQB1*05:02. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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