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Synergetic effects of shock waves with polydeoxyribonucleotides on rotator cuff tendon tear in a rabbit model

BIOCELL 2021年第3期45卷 527-536页

作者： DONG HAN KIM DONG RAK KWON GI-YOUNG park YONG SUK moon Department of Rehabilitation Medicine Catholic University of Daegu School of MedicineDaegu42472South Korea Department of Anatomy Catholic University of Daegu School of MedicineDaegu42472South Korea

This work aimed to investigate the synergetic therapeutic effects of polydeoxyribonucleotides(PDRN)combined with extracorporeal shock waves therapy(ESWT)and the effects of the therapy according to ESWT sequences on a chronic traumatic full-thickness rotator cuff tear(RCT)in rabbit *** this purpose,thirty-two rabbits were randomly allocated into 4 *** excision was made to create a 5-mm sized full-thickness RCT right proximal to the insertion site on the *** 6 weeks,4 different procedures(normal saline,Group 1;PDRN injection,Group 2;PDRN injection before ESWT,Group 3;PDRN injection after ESWT,Group 4)were *** injection and radial type ESWT were each performed 4 times per *** morphology,Immunohistochemistry,and motion analysis were performed at 4 weeks after *** parameters including tear size,Masson’s trichrome(MT)staining,anti-collagen 1 monoclonal antibody immunostaining(COL-1),proliferating cell nuclear antigen(PCNA),vascular endothelial growth factor(VEGF),anti-platelet endothelial cell adhesion molecule-1 polyclonal antibody(PECAM-1),and motion analysis,were significantly greater in Group 2,Group 3,and Group 4 than in Group *** Group 4,all parameters were significantly greater than in Group 2,and parameters including MT staining,COL-1,PCNA,PECAM-1,and fast walking time were significantly greater than Group *** were no significant differences between Group 2 and Group *** study demonstrated that PDRN injection alone and combined with ESWT were more effective than control treatment and applying ESWT before PDRN injection was also shown to yield better outcomes in parameters including angiogenesis,cell proliferation,and fast walking time in a rabbit model with chronic traumatic full-thickness ***,the application of ESWT before PDRN injection could be recommended for optimal outcomes of the conservative treatments when the patients with full-thickness RCT are not suitable in surgical treatment

关键词： Shoulder Rotator cuff Polydeoxyribonucleotides Extracorporeal shock waves

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Spectral domain optical coherence tomography crosssectional image of optic nerve head during intraocular pressure elevation

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International Journal of Ophthalmology(English edition) 2014年第6期7卷 1022-1029页

作者： Ji Young Lee You Kyung Lee Jung Il moon Myoung Hee park Department of Ophthalmology Yeouido St. Mary's HospitalCollege of Medicinethe Catholic University of Korea62Yeuido-dongYoungdeungpo-guSeoul 150-713Korea

AIM: To analyze changes of the optic nerve head(ONH) and peripapillary region during intraocular pressure(IOP) elevation in patients using spectral domain optical coherence tomography(SD-OCT).METHODS: Both an optic disc 200×200 cube scan and a high-definition 5-line raster scan were obtained from open angle glaucoma patients presented with monocular elevation of IOP(≥30 mm Hg) using SD-OCT. Additional baseline characteristics included age, gender, diagnosis,best-corrected visual acuity, refractive error, findings of slit lamp biomicroscopy, findings of dilated stereoscopic examination of the ONH and fundus, IOP, pachymetry findings, and the results of visual ***: The 24 patients were selected and divided into two groups: group 1 patients had no history of IOP elevation or glaucoma(n =14), and group 2 patients did have history of IOP elevation or glaucoma(n =10). In each patient, the study eye with elevated IOP was classified into group H(high), and the fellow eye was classified into group L(low). The mean deviation(MD)differed significantly between groups H and L when all eyes were considered(P =0.047) and in group 2(P =0.042), not in group 1(P =0.893). Retinal nerve fiber layer(RNFL) average thickness(P =0.050), rim area(P =0.015),vertical cup/disc ratio(P =0.011), cup volume(P =0.028),inferior quadrant RNFL thickness(P =0.017), and clockhour(1, 5, and 6) RNFL thicknesses(P =0.050, 0.012, and0.018, respectively), cup depth(P =0.008), central prelaminar layer thickness(P =0.023), mid-inferior prelaminar layer thickness(P =0.023), and nasal retinal slope(P =0.034)were significantly different between the eyes with groups H and ***:RNFLaveragethickness,rim area,vertical cup/disc ratio, cup volume, inferior quadrant RNFL thickness, and clock-hour(1, 5, and 6) RNFL thicknesses significantly changed during acute IOP elevation.

关键词： spectral domain optical coherence tomography optic nerve head elevated intraocular pressure open angle glaucoma retinal nerve fiver layer

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How to reduce and manage the hepatic arterial complications in living and deceased donor liver transplantation?

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Hepatobiliary Surgery and Nutrition 2021年第2期10卷 284-287页

作者： Deok-Bog moon Min-Jae Kim Gil-Chun park Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

Hepatic artery(HA)reconstruction in liver transplantation(LT),particularly in living donor liver transplantation(LDLT)is nerve-wracking job due to the smallest and shortest vascular *** diameter of donor HA in Asian people is less than 3 mm in more than three quarters of the donors(1).After introduction of microvascular techniques for HA reconstruction in LDLT,the incidence of arterial complications has decreased significantly(2).

关键词： arterial donor liver

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Gallbladder lymphangioma:A case report and review of the literature

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World Journal of Gastroenterology 2007年第2期13卷 320-323页

作者： Jwa-Kyung Kim Kyo-Sang Yoo Joon Ho moon Kwang Hyuk park Yong Woo Chung Kyoung Oh Kim Cheol Hee park Taeho Hahn Sang Hoon park jong Hyeok Kim Jang Yeong Jeon Min Jung Kim Kwang Seon Min Department of Pathology Hallym University College of Medicine Anyang Korea Choong Kee park Department of Gastroenterology and Hepatology Hallym University College of Medicine Anyang Korea Department of Surgery Hallym University College of Medicine Anyang Korea Department of Diagnostic Radiology Hallym University College of Medicine Anyang Korea

Lymphangiomas are rare, benign tumors of the lymphatic system, usually present in children aged 5 years and younger. Because they are asymptomatic until the mass enlarges to cause symptoms, most lymphangiomas are diagnosed at adulthood incidentally. We experienced a case of a 60-year-old man diagnosed with a cystic lymphangioma of the gallbladder, which was successfully resected without any complication. Magnetic resonance imaging and magnetic resonance cholangiopancreatography were very helpful for the diagnosis of the cystic lesion around the gallbladder as were ultrasonography and computed tomography scan. These showed a multi-lobulated cystic mass with intact cystic duct and bile duct in the gallbladder fossa. The patient underwent an open cholecystectomy and the histological findings were consistent with a cystic lymphangioma of the gallbladder. We here report the case of cystic lymphangioma of the gallbladder with a review of the literature.

关键词： Lymphangioma Gallbladder Cholecystectomy

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In?uence of Carbon Equivalent Value on the Weld Bead Bending Properties of High-Strength Low-Alloy Steel Plates

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Journal of Materials Science & Technology 2017年第4期33卷 321-329页

作者： Ki Hyuk Kim In Jun moon Ki Won Kim Ki Bong Kang Byung Gyu park Kwang Seok Lee R&D Center of Dongkuk Steel Mill Co. Ltd Pohang 790-729 South Korea Korea Institute of Materials Science Implementation Research Division Materials Deformation Department 797 Changwondaero Changwon Gyeongnarn642-831 South Korea

The contribution of chemical compositions in terms of carbon equivalent value（CEV） on impending crack propagation during weld bead bend tests（WBBTs） was studied with five different high-strength lowalloy steel plates that underwent different rolling processes. The test showed that cracks developed at the weld joint, easily passed through the coarse-grain heat-affected zone（CGHAZ）, and finally were arrested within the heat-affected zone（HAZ）. An apparent decrease in the average crack length, which consequently indicated improvement in crack arrestability, was found with decreasing CEV. In addition,the relatively fine microstructure in the HAZ of low-CEV steel plates helped in preventing the crack from further propagation. Special emphasis was placed on the empirical expectation of critical CEV above which WBBT might fail.

关键词： Mechanical characterization Steel Welding Fracture Crack arrestability against bending

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QKD system with fast active optical path length compensation

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Science China(Physics,Mechanics & Astronomy) 2017年第6期60卷 1-7页

作者： Byung Kwon park Min Soo Lee Min Ki Woo Yong-Su Kim Sang-Wook Han Sung moon Center for Quantum Information Korea Institute of Science and Technology Department of Nano-materials Science and Engineering Korea University of Science and Technology

We develop a quantum key distribution (QKD) system with fast active optical path length compensation. A rapid and reliable active optical path length compensation scheme is proposed and applied to a plug-and-play QKD system. The system monitors changes in key rates and controls it is own operation automatically. The system achieves its optimal performance within three seconds of operation, which includes a sifted key rate of 5.5 kbps and a quantum bit error rate of less than 2% after an abrupt temperature variation along the 25 km quantum channel. The system also operates well over a 24 h period while completing more than 60 active optical path length compensations.

关键词： quantum key distribution optical path length compensation plug and play field programmable gate array

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Acute kidney injury due to intravenous detergent poisoning:A case report

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World Journal of Clinical Cases 2022年第6期10卷 2036-2044页

作者： Sungbin park Hyun-Sik Ryu Jae-Kwang Lee Sung-Soo park Sun-Jung Kwon Won-Min Hwang Sung-Ro Yun moon-Hyang park Yohan park Department of Internal Medicine Division of NephrologyKonyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Emergency Medicine Konyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Internal Medicine Division of Respiratory and Critical Care MedicineKonyang University HospitalCollege of MedicineDaejeon 35365South Korea Department of Pathology Konyang University HospitalCollege of MedicineDaejeon 35365South Korea

BACKGROUND Detergent poisoning mostly occurs through oral ingestion(>85%),ocular exposure(<15%),or dermal exposure(<8%).Reports of detergent poisoning through an intravenous injection are extremely *** addition,there are very few cases of renal toxicity directly caused by ***,we report a unique case of acute kidney injury caused by detergent poisoning through an accidental intravenous *** SUMMARY A 61-year-old man was intravenously injected with 20 mL of detergent by another patient in the same room of a local *** surfactant and calcium carbonate accounted for the largest proportion of the *** patient complained of vascular pain,chest discomfort,and nausea,and was transferred to our *** hospitalization,the patient’s serum creatinine level increased to 5.42 mg/dL,and his daily urine output decreased to approximately 300 *** biopsy findings noted that the glomeruli were relatively intact;however,diffuse acute tubular injury was *** edema was also noted,and the patient underwent a total of four hemodiafiltration ***,the patient’s urine output gradually increased whereas the serum creatinine level *** patient was discharged in a stable status without any *** Detergents appear to directly cause renal tubular injury by systemic *** treating a patient with detergent poisoning,physicians should be aware that the renal function may also *** addition,timely renal replacement therapy may help improve the patient’s prognosis.

关键词： Detergents Poisoning Intravenous injection Acute kidney injury Acute tubular injury Case report

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Superior mesenteric vein thrombosis induced by influenza infection:A case report

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World Journal of Clinical Cases 2020年第18期8卷 4193-4199页

作者： Gyu Man Oh Kyoungwon Jung Jae Hyun Kim Sung Eun Kim Won moon Moo In park Seun Ja park Department of Internal Medicine Kosin University College of MedicineBusan 49267South Korea

BACKGROUND Among the various types and causes of mesenteric ischemia,superior mesenteric vein(SMV)thrombosis is a rare and ambiguous *** a patient presents with SMV thrombosis,past medical history should be reviewed,and the patient should be screened for underlying *** thrombosis may also occur due to systemic *** this report,we describe a case of SMV thrombosis complicated by influenza B *** SUMMARY A 64-year-old male visited the hospital with general weakness,muscle aches,fever,and abdominal *** patient underwent computed tomography(CT)and was diagnosed with SMV *** the patient’s muscle pain and fever could not be explained by the SMV thrombosis,the clinician performed a test for influenza,which produced a positive result for influenza *** patient had a thrombus in the SMV only,with no invasion of the portal or splenic veins,and was clinically *** treatment was prescribed without surgery or other *** follow-up CT scan showed improvement,and the patient was subsequently discharged with continued oral anticoagulant *** This case provides evidence that influenza may be a possible risk factor for SMV *** unexplained abdominal pain is accompanied by an influenza infection,examination of an abdominal CT scan may be necessary to screen for possible SMV thrombosis.

关键词： Influenza B virus Mesenteric ischemia Venous thrombosis Mesenteric vascular occlusion Influenza Human Case reports

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FET-based nanobiosensors for the detection of smell and taste

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Science China(Life Sciences) 2020年第8期63卷 1159-1167页

作者： Dongseok moon Yeon Kyung Cha So-ong Kim Seongyeon Cho Hwi Jin Ko Tai Hyun park School of Chemical and Biological Engineering Institute of Chemical ProcessesSeoul National UniversitySeoul 08826Republic of Korea Interdisciplinary Program for Bioengineering Seoul National UniversitySeoul 08826Republic of Korea

Various nanobiosensors composed of biomaterials and nanomaterials have been developed,due to their demonstrated advantage of showing high *** various biomaterials for biological recognition elements of the nanobiosensor,sensory receptors,such as olfactory and taste receptors,are promising biomaterials for developing nanobiosensors,because of their high selectivity to target ***-effect transistors(FET)with nanomaterials such as carbon nanotube(CNT),graphene,and conducting polymer nanotube(CPNT),can be combined with the biomaterials to enhance the sensitivity of ***,many efforts have been made to develop nanobiosensors using biomaterials,such as olfactory receptors and taste receptors for detecting various smells and *** review focuses on the biomaterials and nanomaterials used in nanobiosensor systems and studies of various types of nanobiosensor platforms that utilize olfactory receptors and taste receptors which could be applied to a wide range of industrial fields,including the food and beverage industry,environmental monitoring,the biomedical field,and anti-terrorism.

关键词： nanobiosensor olfactory receptor taste receptor field-effect transistor(FET)

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Effect of intermetallic compound thickness on anisotropy of Al/Cu honeycomb rods fabricated by hydrostatic extrusion process

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Transactions of Nonferrous Metals Society of China 2016年第2期26卷 456-463页

作者： Tae-hyuk LEE moon-soo SIM Sin-hyeong JOO Kyoung-tae park Ha-guk JEONG jong-hyeon LEE Graduate School of Department of Advanced Materials Engineering Chungnam National University Rapidly Solidified Materials Research Center Chungnam National University Graduate School of Energy Science & Technology Chungnam National University Rare Metal R&D Group Korea Institute of Industrial Technology Advanced Fusion Process R&D Group Korea Institute of Industrial Technology

The effect of intermetallic compound （IMC） thickness on the thermal and mechanical properties of Al/Cu honeycomb rods was investigated. The Al/Cu honeycomb rods were fabricated using repeated hydrostatic extrusions at 200 ℃. During the process, an IMC layer with 1μm in thickness was generated at the Al/Cu interface. Different IMC thicknesses were obtained by post-heat treatment at 420 ℃ for 0.5 to 2 h. The IMC thickness increased to 10.1μm. The IMC layers were identified as Al2Cu （θ）, AlCu （η2）, and Al4Cu9（γ1） phases. The thermal conductivities in the longitudinal direction and cross direction decreased by 11.9% （（268±4.8） to （236±4.4） W/（m·K）） and 10.4% （（210±3.2） to （188±2.8） W/（m＆#183;K））, respectively, with increasing IMC thickness. The ultimate tensile strength and elongation of the Al/Cu honeycomb rod are （103±8.4） MPa and （73±6.2）%, respectively. The ultimate tensile strength increased to （131±6.5） MPa until the IMC thickness reached 7.7μm. It subsequently decreased to （124±3.9） MPa until the IMC thickness reached 10.1μm. The elongation of the Al/Cu honeycomb rod then sharply decreased to （29±2.5）% with increasing IMC thickness.

关键词： intermetallic compound Al/Cu honeycomb rod anisotropy thermal conductivity tensile strength hydrostatic extrusion

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