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https://www.readbyqxmd.com/read/28719947/efficient-liquid-media-for-encystation-of-pathogenic-free-living-amoebae
#1
Hae-Jin Sohn, Heekyoung Kang, Ga-Eun Seo, Jong-Hyun Kim, Suk-Yul Jung, Ho-Joon Shin
Pathogenic Naegleria fowleri, Acanthamoeba castellanii, and Acanthamoeba polyphaga, are distributed worldwide. They are causative agents of primary amoebic meningoencephalitis or acanthamoebic keratitis in humans, respectively. Trophozoites encyst in unfavorable environments, such as exhausted food supply and desiccation. Until recently, the method of N. fowleri encystation used solid non-nutrient agar medium supplemented with heat-inactivated Escherichia coli; however, for the amoebic encystment of Acanthamoeba spp...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28715813/efficacy-of-the-perfluoro-n-octane-assisted-single-layered-inverted-internal-limiting-membrane-flap-technique-for-large-macular-holes
#2
Kang Yeun Pak, Jung Yul Park, Sung Who Park, Ik Soo Byon, Ji Eun Lee
PURPOSE: The aim of this study was to evaluate the efficacy of the perfluoro-n-octane-assisted single-layered inverted internal limiting membrane (ILM) flap for large macular holes (MHs). METHODS: We reviewed idiopathic MHs >400 μm. The patients were divided into ILM peeling (group P, 51 eyes) and ILM flap (group F, 41 eyes). Closure of MHs, best-corrected visual acuity (BCVA), and postoperative optical coherence tomography findings were analyzed. RESULTS: MH closure was achieved in 88...
July 15, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28707131/posterior-locked-lateral-compression-injury-of-the-pelvis-in-geriatric-patients-an-infrequent-and-specific-variant-of-the-fragility-fracture-of-pelvis
#3
Se-Won Lee, Weon-Yoo Kim, Sung-Jun Koh, Young-Yul Kim
INTRODUCTION: Posterior locked lateral compression injury (PLLCI) of the pelvic ring is an infrequent variant of lateral compression injury, a condition described in only eight reported cases since 2000. Lateral compression injury usually results from high-energy trauma and is characterized by locking between the medially translated fractured ilium and the anterior border of the sacrum, regardless of whether the fractured ilium involves the sacroiliac joint. However, in our experience, lateral compression injury can also result from low-energy trauma as a manifestation of pelvic fragility fracture...
July 13, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28703219/genome-wide-association-and-expression-quantitative-trait-loci-studies-identify-multiple-susceptibility-loci-for-thyroid-cancer
#4
Ho-Young Son, Yul Hwangbo, Seong-Keun Yoo, Sun-Wha Im, San Duk Yang, Soo-Jung Kwak, Min Seon Park, Soo Heon Kwak, Sun Wook Cho, Jun Sun Ryu, Jeongseon Kim, Yuh-Seog Jung, Tae Hyun Kim, Su-Jin Kim, Kyu Eun Lee, Do Joon Park, Nam Han Cho, Joohon Sung, Jeong-Sun Seo, Eun Kyung Lee, Young Joo Park, Jong-Il Kim
Thyroid cancer is the most common cancer in Korea. Several susceptibility loci of differentiated thyroid cancer (DTC) were identified by previous genome-wide association studies (GWASs) in Europeans only. Here we conducted a GWAS and a replication study in Koreans using a total of 1,085 DTC cases and 8,884 controls, and validated these results using expression quantitative trait loci (eQTL) analysis and clinical phenotypes. The most robust associations were observed in the NRG1 gene (rs6996585, P=1.08 × 10(-10)) and this SNP was also associated with NRG1 expression in thyroid tissues...
July 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/28700122/three-dimensional-visualization-system-for-ophthalmic-microscopes-using-visible-light-and-near-infrared-illumination
#5
Ki-Chul Kwon, Chan-Young Im, Kyoung Yul Seo, Sang-Min Nam, Munkh-Uchral Erdenebat, Young Bo Shim, Young Geun Han, Nam Kim
In this paper, we describe a three-dimensional visualization system for ophthalmic microscopes that is aimed at microsurgery without the eyepieces. A three-dimensional visualization system for ophthalmic microscopes using the mixed illumination which consists of visible light and near-infrared illumination, is established in order to acquire more exact information of object and reduce the amount of light irradiated to the patients, and its usage in microsurgery without eyepieces is herein described. A custom designed stereoscopic three-dimensional display which is manufactured for the convenience of the surgeons during the long-time surgery, is connected directly to the camera of the ophthalmic microscope in order to eliminate the discomfort of eyepieces to the surgeon and signal delay between the camera, mounted on the microscope, and display device for surgeon...
July 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28689701/surface-changes-of-pathfile-after-glide-path-preparation-an-ex%C3%A2-vivo-and-in%C3%A2-vivo-study
#6
Yul Kim, Robert Love, Roy George
INTRODUCTION: The aim of this study was to evaluate the changes in the surface profile of rotary nickel-titanium (NiTi) files designed to prepare a glide path and conventional stainless steel (SS) hand files when used in extremely narrow canals both in clinical and experimental conditions. METHODS: This ex vivo/in vivo study used either SS #10 K hand files or the PathFile system (Dentsply Maillefer, Ballaigues, Switzerland) to establish a glide path in maxillary molars with narrow root canals (defined as canals that bound a #8 K-file at the working length)...
July 7, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28673065/sociodemographic-factors-related-to-lower-urinary-tract-symptoms-in-men-a-korean-community-health-survey
#7
Jung Ki Jo, Kyu Shik Kim, Ji Won Nam, Bo Yul Choi, Hong Sang Moon
PURPOSE: This study estimated the prevalence of lower urinary tract symptoms (LUTS) in Korean men and the conditions for being diagnosed with or treated for LUTS/benign prostatic hyperplasia (BPH). METHODS: We analyzed cross-sectional data collected from 69,851 Korean men who were 40 years of age or older and had participated in the Korean Community Health Survey performed in 2011. Interviewers performed face-to-face surveys that included sociodemographic questions, the International Prostate Symptom Score (IPSS), and questions regarding whether the subjects had been diagnosed with or treated for LUTS/BPH...
June 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28670567/comparison-of-changes-in-the-transverse-dental-axis-between-patients-with-skeletal-class-iii-malocclusion-and-facial-asymmetry-treated-by-orthognathic-surgery-with-and-without-presurgical-orthodontic-treatment
#8
Han-Sol Song, Sung-Hwan Choi, Jung-Yul Cha, Kee-Joon Lee, Hyung-Seog Yu
OBJECTIVE: To evaluate transverse skeletal and dental changes, including those in the buccolingual dental axis, between patients with skeletal Class III malocclusion and facial asymmetry after bilateral intraoral vertical ramus osteotomy with and without presurgical orthodontic treatment. METHODS: This retrospective study included 29 patients with skeletal Class III malocclusion and facial asymmetry including menton deviation > 4 mm from the midsagittal plane...
July 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28670565/effects-of-recycling-on-the-biomechanical-characteristics-of-retrieved-orthodontic-miniscrews
#9
Soon-Dong Yun, Sung-Hwan Choi, Jung-Yul Cha, Hyung-Seog Yu, Kwang-Mahn Kim, Jin Kim, Chung-Ju Hwang
OBJECTIVE: The aim of this study was to compare recycled and unused orthodontic miniscrews to determine the feasibility of reuse. The comparisons included both miniscrews with machined surfaces (MS), and those with etched surfaces (ES). METHODS: Retrieved MS and ES were further divided into three subgroups according to the assigned recycling procedure: group A, air-water spray; group B, mechanical cleaning; and group C, mechanical and chemical cleaning. Unused screws were used as controls...
July 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28668680/antimicrobial-activities-of-lcb10-0200-a-novel-siderophore-cephalosporin-against-the-clinical-isolates-of-pseudomonas-aeruginosa-and-other-pathogens
#10
Sang-Hun Oh, Hee-Soo Park, Hye-Shin Kim, Jeong-Yul Yun, Kyuman Oh, Young-Lag Cho, Jin-Hwan Kwak
Infections caused by multidrug-resistant bacteria, including Pseudomonas aeruginosa, are threating public health worldwide. Therefore, a novel antibacterial agent is needed for treating these infections. Here, we investigated the in vitro and in vivo activities of a novel siderophore-conjugated cephalosporin LCB10-0200 against the clinical isolates of Gram-negative baeria, including multidrug-resistant P. aeruginosa. In vitro susceptibility to LCB10-0200 was assessed by performing a two-fold agar dilution method, as described by Clinical and Laboratory Standards Institute...
June 28, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28650138/photoelectrochemical-and-impedance-spectroscopic-analysis-of-amorphous-si-for-light-guided-electrodeposition-and-hydrogen-evolution-reaction
#11
Sung Yul Lim, Donghyeop Han, Yang-Rae Kim, Taek Dong Chung
For more efficient photoelectrochemical water splitting, there is a dilemma that a photoelectrode needs both light absorption and electrocatalytic faradaic reaction. One of the promising strategies is to deposit a pattern of electrocatalysts onto a semiconductor surface, leaving sufficient bare surface for light absorption while minimizing concentration overpotential as well as resistive loss at the ultramicroelectrodes for faradaic reaction. This scheme can be successfully realized by "maskless" direct photoelectrochemical patterning of electrocatalyst onto an SiOx/amorphous Si (a-Si) surface by the light-guided electrodeposition technique...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28649964/characterization-of-opto-electrical-enhancement-of-tandem-photoelectrochemical-cells-by-using-photoconductive-afm
#12
Sun-Young Park, Rick Elbersen, Jurriaan Huskens, Han Gardeniers, Joo-Yul Lee, Guido Mul, Jinhee Heo
Solar-to-hydrogen conversion by water splitting in photoelectrochemical cells (PECs) is a promising approach to alleviate problems associated with intermittency in solar energy supply and demand. Several interfacial resistances in photoelectrodes limit the performance of such cells, while the properties of interfaces are not easy to analyze in situ. We applied photoconductive-AFM to analyze the performance of WO3/p(+)n Si photoanodes, containing an ultra-thin metal interface of either Au or Pt. The Au interface consisted of Au nanoparticles with well-ordered interspacing, while Pt was present in the form of a continuous film...
June 26, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28633795/valgus-ankle-degenerative-arthritis-with-an-isolated-deltoid-insufficiency-and-tibial-varus-a-case-report
#13
Joo-Yul Bae, Hee-Jae Won, Dong-Kyo Seo
We report a case of valgus ankle degenerative arthritis due to chronic isolated deltoid insufficiency combined with tibial varus that was treated successfully with ankle joint preserving surgery. A 63-year-old male complained of right lateral ankle pain with 10 minutes of maximal pain-free walking time. The assessed American Orthopaedic Foot and Ankle ankle-hindfoot scale score was 33 points. The ankle joint showed 18° of valgus deformity with 6° of tibia varus. Medial displacement calcaneal osteotomy, supramalleolar open wedge osteotomy, and deltoid ligament imbrication were performed...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28632935/impact-of-preoperative-calculation-of-nephron-volume-loss-on-future-of-partial-nephrectomy-techniques-planning-a-strategic-roadmap-for-improving-functional-preservation-and-securing-oncological-safety
#14
Koon Ho Rha, Ali Abdel Raheem, Sung Yul Park, Kwang Hyun Kim, Hyung Joon Kim, Kyo Chul Koo, Young Deuk Choi, Byung Ha Jung, Sang Kon Lee, Won Ki Lee, Jayram Krishnan, Tae Young Shin, Jin-Seon Cho
OBJECTIVES: To assess the correlation of resected and ischaemised volume (RAIV), which is preoperatively calculated volume of nephron loss (VNL), with the amount of postoperative renal function (PRF) decline after minimally invasive partial nephrectomy (PN) in a multi-institutional dataset. SUBJECTS AND METHODS: We identified 348 patients from March 2005 to December 2013 at six institutions. Data on all cases of laparoscopic (n = 85) and robotic PN (n = 263) performed were retrospectively gathered...
June 20, 2017: BJU International
https://www.readbyqxmd.com/read/28630441/overcoming-the-biological-aging-of-titanium-using-a-wet-storage-method-after-ultraviolet-treatment
#15
Sung-Hwan Choi, Won-Seok Jeong, Jung-Yul Cha, Jae-Hoon Lee, Kee-Joon Lee, Hyung-Seog Yu, Eun-Ha Choi, Kwang-Mahn Kim, Chung-Ju Hwang
We evaluated whether the biological activity of the surface of titanium, when stored in an aqueous solution after ultraviolet (UV) treatment, is comparable to that of the surface immediately after UV treatment. We subjected Grade IV titanium discs with machined surfaces to UV radiation for 15 min and then tested them immediately and after storage for 28 days, with and without distilled H2O (dH2O). We evaluated the surface characteristics using surface profiling, contact angle analysis, X-ray photoelectron spectroscopy, and in terms of the surface zeta-potential...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28618022/utility-of-a-formatted-pathologic-reporting-system-in-thyroid-core-needle-biopsy-a-validation-study-of-1998-consecutive-cases
#16
Ji-Young Choe, Yoonjin Kwak, Mimi Kim, Yul Ri Chung, Hyun Jeong Kim, Yeo Koon Kim, So Yeon Park
OBJECTIVE: Thyroid core needle biopsy (CNB) is increasingly being used as a tool for evaluating thyroid nodules; thus, standardization of its diagnostic terminology is called for. We aimed to analyze the pathologic reporting system of thyroid CNB based on the recently proposed protocol by the Korean Endocrine Pathology Thyroid Core Needle Biopsy Study Group and evaluate its usefulness. DESIGN/METHODS: 1998 consecutive cases of thyroid CNBs were reviewed and divided into 6 categories according to the protocol...
June 15, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28602058/development-and-evaluation-of-a-korean-version-of-a-thyroid-specific-quality-of-life-questionnaire-scale-in-thyroid-cancer-patients
#17
Chang Hwan Ryu, Boram Park, Junsun Ryu, Youn Mi Ryu, Seong Ae Jo, You Jin Lee, Eun-Kyung Lee, Yul Hwangbo, Jungnam Joo, Yuh-Seog Jung
Purpose: The purpose of this study was to develop a Korean version of the self-reported thyroid specific quality of life (QoL) questionnaire for thyroid cancer patients (KT-QoL), and to evaluate its reliability and validity. Materials and Methods: Two hundred seventy-two patients who underwent thyroidectomy from January to December 2010 were recruited in this study. The original version of the Thyroid QoL (T-QoL) was translated into Korean and evaluated for its reliability and validity...
May 26, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28600291/sphingosine-1-phosphate-lyase-enhances-the-activation-of-ikk%C3%AE%C2%B5-to-promote-type-i-ifn-mediated-innate-immune-responses-to-influenza-a-virus-infection
#18
Madhuvanthi Vijayan, Chuan Xia, Yul Eum Song, Hanh Ngo, Caleb J Studstill, Kelly Drews, Todd E Fox, Marc C Johnson, John Hiscott, Mark Kester, Stephen Alexander, Bumsuk Hahm
Sphingosine 1-phosphate (S1P) lyase (SPL) is an intracellular enzyme that mediates the irreversible degradation of the bioactive lipid S1P. We have previously reported that overexpressed SPL displays anti-influenza viral activity; however, the underlying mechanism is incompletely understood. In this study, we demonstrate that SPL functions as a positive regulator of IKKε to propel type I IFN-mediated innate immune responses against viral infection. Exogenous SPL expression inhibited influenza A virus replication, which correlated with an increase in type I IFN production and IFN-stimulated gene accumulation upon infection...
June 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28593163/corrigendum-circulating-aneuploid-cells-detected-in-the-blood-of-patients-with-infectious-lung-diseases
#19
Hongsun Kim, Jong Ho Cho, Chung-Hee Sonn, Jae-Won Kim, Yul Choi, Jinseon Lee, Jhingook Kim
[This corrects the article on p. 126 in vol. 50, PMID: 28382274.].
June 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28581259/clinical-implication-of-optical-coherence-tomography-based-neoatherosclerosis
#20
REVIEW
Sung Jin Hong, Seung Yul Lee, Myeong Ki Hong
Recent research has indicated neoatherosclerosis (NA), the de novo development of atherosclerosis within the neointimal region of the stented segment after coronary stent implantation, as a mechanism of late/very late stent thrombosis (VLST) and restenosis. This research is based on histologic and intravascular imaging studies. Optical coherence tomography (OCT) is an imaging tool that is superior with regard to resolution capacity, and can be used to visualize detailed information about distinct morphological characteristics of the restenotic tissue...
July 2017: Journal of Korean Medical Science
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