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Chinese Medical Journal 2019年第7期132卷 757-764页

作者： Jae Young Ji Jin Soo Park Ji Eun kim Da Hyung kim Jin Hun Chung Hea Rim Chun Ho soon Jung Sie Hyeon Yoo Department of Anesthesiology and Pain Medicine Soonchunhyang University Hospital Cheonan31Soonchunhyang 6-gilDongnam-guCheonan-siChungcheongnam-do 330-721Korea

Background:Sevoflurane is widely used to anesthetize children because of its rapid action with minimal irritation of the ***,there is a high risk of agitation after emergence from *** surgery,in particular,can trigger agitation because patients have their eyes covered in the postoperative *** aim of this study was to determine whether or not esmolol and lidocaine could decrease emergence agitation in ***:Eighty-four patients aged 3 to 9 years undergoing strabismus surgery were randomly assigned to a control group(saline only),a group that received intravenous lidocaine 1.5 mg/kg,and a group that received intravenous esmolol 0.5 mg/kg and lidocaine 1.5 mg/*** was measured using the objective pain score,Cole 5-point score,and Richmond Agitation Sedation Scale score at the end of surgery,on arrival in the recovery room,and 10 and 30 min after ***:The group that received the combination of esmolol and lidocaine showed lower OPS and RASS scores than the other two groups when patients awoke from anesthesia(OPS=0(0-4),RASS=-4[(-5)-1])and were transferred to the recovery room(OPS=0(0-8),RASS=-1[(-5)-3])(P0.05).Conclusions:When pediatric strabismus surgery is accompanied by sevoflurane anesthesia,an intravenous injection of esmolol and lidocaine could alleviate agitation until arrival in the recovery room.

关键词： Agitation Esmolol Lidocaine Sevoflurane

Safety and efficacy of tenofovir in chronic hepatitis B-related decompensated cirrhosis

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World Journal of Gastroenterology 2017年第13期23卷 2396-2403页

作者： soon Kyu Lee Myeong Jun Song Seok Hyun kim Byung Seok Lee Tae Hee Lee Young Woo Kang Suk Bae kim Il Han Song Hee Bok Chae soon Young Ko Jae Dong Lee Division of Hepatology Department of Internal MedicineDaejeon St.Mary's HospitalCollege of MedicineThe Catholic University of Korea Department of Internal Medicine Chungnam University Hospital Department of Internal Medicine Konyang University Hospital Department of Internal Medicine Dankook University Hospital Department of Internal Medicine Chung Buk University Hospital Department of Internal Medicine Konkuk University Chungju Hospital

AIM To evaluate the safety and efficacy of tenofovir disoproxil fumarate(TDF) as a first-line therapy in decompensated liver disease. METHODS We enrolled 174 chronic hepatitis B-related liver cirrhosis patients treated with 300 mg/d TDF at six Korean centers. Of the 174 cirrhosis patients, 57 were assigned to the decompensated cirrhosis group and 117 were assigned to the compensated cirrhosis group. We followed the patients for 12 mo and evaluated clinical outcomes, including biochemical, virological, and serological responses. We also evaluated changes in hepatic and renal function and compared the decompensated and compensated cirrhosis groups. RESULTS The 1-year complete virological response(CVR) and Hepatitis B e antigen(HBe Ag) seroconversion were seen in 70.2% and 14.2% in the decompensated cirrhosis group, respectively. The rates of HBe Ag seroconversion/loss and ALT normalization at month 12 were similar in both groups. TDF treatment was also effective for decreasing the level of hepatitis B virus(HBV) DNA in both groups, but CVR was higher in the compensated group(88.9% vs 70.2%, P = 0.005). Tenofovir treatment for 12 mo resulted in improved Child-Turcotte-Pugh(CTP) and model for end-stage liver disease(MELD) scores in decompensated group(P < 0.001). Of the 57 decompensated patients, 39(68.4%) achieved CTP class A and 27(49.1%) showed improvement in the CTP score of 2 points after 12 mo of TDF. The observed rate of confirmed 0.5 mg/d L increases in serum levels of creatinine in the decompensated and compensated cirrhosis group were 7.0% and 2.5%, respectively(P < 1.000).CONCLUSION TDF therapy in decompensated cirrhosis patients was effective for decreasing HBV DNA levels and improving hepatic function with relatively lower CVR than in compensated cirrhosis. Thus, physicians should carefully monitor not only renal function but also treatment responses when using TDF in decompensated cirrhosis patients.

关键词： Tenofovir Decompensated liver cirrhosis Compensated liver cirrhosis Virological response Renal safety

Effects of oxygen concentration and flow rate on cognitive ability and physiological responses in the elderly

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Neural Regeneration Research 2013年第3期8卷 264-269页

作者： Hyun-Jun kim Hyun-Kyung Park Dae-Woon Lim Mi-Hyun Choi Hyun-Joo kim In-Hwa Lee Hyung-Sik kim Jin-Seung Choi Gye-Rae Tack soon-Cheol Chung Department of Obstetrics & Gynecology Konkuk University Department of Laboratory Medicine Seoul Clinical Laboratories Department of Information & Communication Engineering Dongguk University Department of Biomedical Engineering Research Institute of Biomedical EngineeringCollege of Biomedical & Health ScienceKonkuk University

The supply of highly concentrated oxygen positively affects cognitive processing in normal young adults. However, there have been few reports on changes in cognitive ability in elderly subjects following highly concentrated oxygen administration. This study investigated changes in cognitive ability, blood oxygen saturation （%）, and heart rate （beats/min） in normal elderly subjects at three different levels of oxygen [21% （1 L/min）, 93% （1 L/min）, and 93% （5 L/min）] administered during a 1-back task. Eight elderly male （75.3 ＋ 4.3 years old） and 10 female （71.1 ＋ 3.9 years old） subjects, who were normal in cognitive ability as shown by a score of more than 24 points in the Mini-Mental State Examination-Korea, participated in the experiment. The experiment consisted of an adaptation phase after the start of oxygen administration （3 minutes）, a control phase to obtain stable baseline measurements of heart rate and blood oxygen saturation before the task （2 minutes） and a task phase during which the 1-back task was performed （2 minutes）. Three levels of oxygen were administered throughout the three phases （7 minutes）. Blood oxygen saturation and heart rate were measured during each phase. Our results show that blood oxygen saturation increased, heart rate decreased, and response time in the 1-back task decreased as the concentration and amount of administered oxygen increased. This shows that administration of sufficient oxygen for optimal cognitive functioning increases blood oxygen saturation and decreases heart rate.

关键词： neural regeneration clinical practice highly concentrated oxygen cognitive task 1-back task cognitive ability blood oxygen saturation heart rate physiological responses elderly grant-supported paper neuroregeneration

Diabetic factors associated with gastrointestinal symptoms in patients with type 2 diabetes

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World Journal of Gastroenterology 2010年第14期16卷 1782-1787页

作者： Jeong Hwan kim Hyung Seok Park soon Young Ko Sung Noh Hong In-Kyung Sung Chan Sub Shim Kee-Ho Song Dong-Lim kim Sook Kyung kim Jeeyoung Oh Department of Internal Medicine Digestive Disease Center Konkuk University School of Medicine Konkuk University Medical Center Seoul 143-729 South Korea Medical Immunology Center Institute of Biomedical Science and Technology Konkuk University School of Medicine Konkuk University Medical Center Seoul 143-729 South Korea Department of Internal Medicine Konkuk University School of Medicine Konkuk University Medical Center Seoul 143-729 South Korea Department of Neurology Konkuk University School of Medicine Konkuk University Medical Center Seoul 143-729 South Korea

AIM: To determine whether gastrointestinal (GI) symptoms are more frequent in type 2 diabetic patients and to examine which diabetic factors are associated with the symptoms. METHODS: Consecutive subjects with diabetes and age-/gender-matched normal controls were recruited for this study. GI symptoms were assessed using a structured questionnaire divided into two GI symptomcategories (upper and lower GI symptoms), and consisting of 11 individual symptoms. In the diabetic patient group, diabetic complications including peripheral neuropathy, nephropathy and retinopathy, glycosylated hemoglobin (HbA1c) level and diabetes duration were evaluated. RESULTS: Among the total 190 diabetic patients and 190 controls enrolled, 137 (72%) of the diabetic patients and 116 (62%) of the controls had GI symptoms. In the diabetic patient group, 83 (43%) had upper GI symptoms and 110 (58%) lower GI symptoms; in the control group, 59 (31%) had upper GI symptoms and 104 (55%) lower GI symptoms. This difference between the two groups was significant for only the upper GI symptoms (P = 0.02). Among the diabetic factors, the HbA1c level was the only independent risk factor for upper GI symptoms in the multiple logistic regression analysis (odds ratio = 2.01, 95% confidence interval: 1.02-3.95). CONCLUSION: Type 2 diabetes was associated with an increased prevalence of upper GI symptoms and these symptoms appeared to be independently linked to poor glycemic control, as measured by the HbA1c levels.

关键词： Diabetes HbA1c Upper gastrointestinal symptoms

Corticotropin-releasing factor stimulates colonic motility via muscarinic receptors in the rat

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World Journal of Gastroenterology 2017年第21期23卷 3825-3831页

作者： Kyung-Jo kim Ki Bae kim soon Man Yoon Joung-Ho Han Hee Bok Chae Seon Mee Park Sei Jin Youn Department of Gastroenterology University of Ulsan College of Medicine Asan Medical Center Department of Internal Medicine Chungbuk National University College of Medicine

AIM To measure exogenous corticotropin-releasing factor(CRF)-induced motility of the isolated rat colon and to demonstrate the effect of pharmacologic inhibition on CRF-induced motility. METHODS The isolated vascularly-perfused rat colon was used. Luminal pressure was monitored via microtip catheter pressure transducers in the proximal and distal colon. At first, exogenous CRF was administered in a stepwise manner and the concentration of CRF yielding maximal colonic motility was selected. After recording basal colonic motility, hexamethonium, phentolamine, propranolol, atropine and tetrodotoxin were infused into the isolated colon. Initially, only the test drug was infused; then, CRF was added. The motility index was expressed as percentage change over basal level. RESULTS Administration of 1.4, 14.4, 144 and 288 pmol/L CRF progressively increased colonic motility in the proximal and distal colon. Infusion of atropine or tetrodotoxin reduced CRF-induced motility of both the proximal and distal colon, whereas hexamethonium, phentolamine and propranolol had no *** CRF-induced colonic motility appears to be mediated by local cholinergic signaling via muscarinic receptors. Muscarinic receptors are potential targets for counteracting CRF-induced colonic hypermotility.

关键词： Gastrointestinal motility Rats Stress Colon Corticotropin-releasing factor

Development of RP-HPLC method for simultaneous determination of docetaxel and curcumin in rat plasma: Validation and stability

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Asian Journal of Pharmaceutical Sciences 2017年第1期12卷 105-113页

作者： Dong Wuk kim Abid Mehmood Yousaf Dong Xun Li Jong Oh kim Chul soon Yong Kwan Hyung Cho Han-Gon Choi College of Pharmacy&Institute of Pharmaceutical Science and Technology Hanyang University55 Hanyangdaehak-roSangnok-guAnsan 426-791South Korea Faculty of Pharmacy University of Central Punjab1-Khayaban-e-JinnahJoharLahore54000Pakistan National Pharmaceutical Engineering Centre for Solid Preparation in Chinese Herbal Medicine Jiangxi University of Traditional Chinese Medicine56 Yangming RoadNanchangJiangxi330006China College of Pharmacy Yeungnam University214-1Dae-DongGyongsan 712-749South Korea College of Pharmacy Inje University197Inje-roGimhae621-749South Korea

The purpose of the present research was to develop a suitable, simple, precise, accurate,robust, and reproducible RP-HPLC method for a reliable simultaneous quantification of docetaxel(DTX) and curcumin(CCM) in rat plasma samples using paclitaxel(PTX) as an internal standard. The samples were assayed by the Agilent 1260 Infinity HPLC instrument using a Capcell Pak C8 column(4.6 mm × 150 mm, 5 μm) under isocratic conditions. The mobile phase consisted of acetonitrile and triple distilled water(40/60, v/v) with a flow rate of 1.0 ml/min. The eluent was monitored at 230 nm for simultaneous measurement of curcumin and docetaxel. The method was validated by determining system suitability, selectivity, sensitivity, linearity, inter-day and intra-day precision, accuracy, robustness, and stability in accordance with the guidelines of the United States Food and Drug Administration(FDA).The developed chromatographic method proved to be simple, precise, accurate, robust and reproducible. Moreover, the samples showed stability at room temperature over a period of 48 h. Thus, this method would be employed for routine simultaneous quantification of docetaxel and curcumin in rat plasma samples.

关键词： Curcumin Docetaxel HPLC Plasma-extraction Simultaneous determination Validation

Water-filling algorithm based approach for management of responsive residential loads

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Journal of Modern Power Systems and Clean Energy 2018年第1期6卷 118-131页

作者： Zunaib Maqsood HAIDER Khawaja Khalid MEHMOOD Muhammad Kashif RAFIQUE Saad Ullah KHAN soon-Jeong LEE Chul-Hwan kim College of Information and Communication Engineering Sungkyunkwan University

Integration of large number of electric vehicles(EVs)with distribution networks is devastating for conventional power system devices such as transformers and power lines *** paper proposes a methodology for management of responsive household appliances management and EVs with water-filling *** the proposed scheme,the load profile of a transformer is retained below its rated capacity while minimally affecting the associated *** the instantaneous demand at transformer increases beyond its capacity,the proposed methodology dynamically allocates demand curtailment limit(DCL)to each home served by *** DCL allocation takes convenience factors,load profile and information of flexible appliances into account to assure the comfort of all the *** proposed scheme is verified by modeling and simulating five houses and a distribution *** smart appliances such as an HVAC,a water heater,a cloth dryer and an EV are also modeled for the *** show that the proposed scheme performs to reduce overloading effects of the transformer efficiently and assures comfort of the consumers at the same time.

关键词： Water-filling(WF) algorithm Responsive household appliances management(RHAM) Electric vehicle(EV) Demand curtailment limit(DCL) Convenience factor Load profile

Detection of early gastric cancer using hydro-stomach CT:Blinded vs unblinded analysis

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World Journal of Gastroenterology 2011年第8期17卷 1051-1057页

作者： Ki Jeong Park Min Woo Lee Ji Hyun Koo Yulri Park Heejung kim Dongil Choi soon Jin Lee Department of Radiol-ogy and Center for Imaging Science Samsung Medical Center Sungkyunkwan University School of Medicine

AIM:To evaluate the difference in diagnostic performance of hydro-stomach computed tomography(CT) to detect early gastric cancer(EGC) between blinded and unblinded analysis and to assess independent factors affecting visibility of cancer ***:Two radiologists initially blinded and then unblinded to gastroscopic and surgical-histological findings independently reviewed hydro-stomach CT images of 110 patients with single *** graded the visibility of cancer foci for each of three gastric segments(upper,middle and lower thirds) using a 4-point scale(1:definitely absent,2:probably absent,3:probably present,and 4:definitely present).The sensitivity and specificity for detecting an EGC were *** and interobserver agreements were *** visibility of an EGC was evaluated with regard to tumor size,invasion depth,gastric segments,histological type and gross morphology using univariate and multivariate ***:The respective sensitivities and specificities [reviewer 1:blinded,20%(22/110) and 98%(215/220);unblinded,27%(30/110) and 100%(219/220)/reviewer 2:blinded,19%(21/110) and 98%(216/220);unblinded,25%(27/110) and 98%(215/220)] were not significantly *** intraobserver agreements were good(weighted κ = 0.677 and 0.666),interobserver agreements were fair(blinded,0.371) or moderate(unblinded,0.558).For both univariate and multivariate analyses,the tumor size and invasion depth were statistically significant factors affecting ***:The diagnostic performance of hydrostomach CT to detect an EGC was not significantly different between blinded and unblinded *** tumor size and invasion depth were independent factors for visibility.

关键词： Stomach neoplasm Computed tomography Water Early detection of cancer Sensitivity

Artificial Nanoscale Erythrocytes from Clinically Relevant Compounds for Enhancing Cancer Immunotherapy

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Nano-Micro Letters 2020年第7期12卷 156-174页

作者： Wenquan Ou Kang Sik Nam Dae Hoon Park Jungho Hwang Sae Kwang Ku Chul soon Yong Jong Oh kim Jeong Hoon Byeon College of Pharmacy Yeungnam UniversityGyeongsan 38541Republic of Korea School of Mechanical Engineering Yonsei UniversitySeoul 03722Republic of Korea College of Korean Medicine Daegu Haany UniversityGyeongsan 38610Republic of Korea School of Mechanical Engineering Yeungnam UniversityGyeongsan 38541Republic of Korea

Because of enhanced e cacy and lower side e ects,cancer immunotherapies have recently been extensively investigated in clinical trials to overcome the limitations of conventional cancer *** engineering attempts have been made to build nanosystems even including stimulus nanomaterials for the e cient delivery of antigens,adjuvants,or anticancer drugs to improve immunogenic cancer cell death,this requires huge R&D e orts and investment for clinically relevant findings to be approved for translation of the *** this end,in this study,an air–liquid two-phase electrospray was developed for stable bubble pressing under a balance between mechanical and electrical parameters of the spray to continuously produce biomimetic nanosystems consisting of only clinically relevant compounds[paclitaxel-loaded fake blood cell Eudragit particle(Eu-FBCP/PTX)]to provide a conceptual leap for the timely development of translatable chemo-immunotherapeutic *** was pursued as the e cacy of systems for delivering anticancer agents that has been mainly influenced by nanosystem shape because of its relevance to transporting behavior to organs,blood circulation,and cell–membrane *** resulting Eu-FBCP/PTX nanosystems exhibiting phagocytic and micropinocytic uptake behaviors can confer better e cacy in chemo-immunotherapeutics in the absence and presence of anti-PD-L1 antibodies than similar sized PTX-loaded spherical Eu particles(Eu-s/PTX).

关键词： Cancer immunotherapies Air–liquid two-phase electrospray Paclitaxel-loaded fake blood cell Eudragit particle Translatable chemo-immunotherapeutic nanosystems Anti-PD-L1 antibodies

Characterization of recycled crumb rubber modified binders containing wax warm additives

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Journal of Traffic and Transportation Engineering(English Edition) 2018年第3期5卷 197-206页

作者： Hyun Hwan kim Mithil Mazumder soon-Jae Lee Moon-Sup Lee Department of Engineering Technology Texas State University San Marcos TX 78666 USA Materials Science Engineering and Commercialization Program Texas State University San Marcos TX 78666 USA Korea Institute of Civil Engineering and Building Technology Goyang-si Gyeonggi-do 10223 Republic of Korea

This paper addresses the laboratory experiment of performance properties of recycled CRM binders containing artificially aged CRM binders with wax additives. The warm CRM binders were produced using two wax additives （LEADCAP and Sasobit） and then shortterm and long-term aged using the rolling thin film oven （RTFO） and pressure aging vessel （PAV） procedures. The recycled CRM binders were aged through the RTFO and PAV pro- cedures. A set of Superpave binder tests were carried out on the binders through the rotational viscometer, the dynamic shear rheometer （DSR）, and the bending beam rheometer （BBR）. In general, the results of this study indicated that （1） the addition of longterm aged （LTA） CRM binder can significantly increase the viscosity of the recycled CRM binders as expected, （2） the wax additives in recycled CRM binders were still effective to improve the viscosity and rutting properties even after experiencing the aging process, （3） the CRM binders containing wax additives showed the higher rutting resistance compared to the control CRM binders, （4） the recycled CRM binder containing wax additives was found to have less resistance to fatigue and low temperature cracking, （5） wax warm additives into the recycled CRM binders seemed to have a significant role for cracking properties, based upon their substantial amount.

关键词： CRM binder Wax additives Rotational viscosity Recycling Rutting