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https://www.readbyqxmd.com/read/28937737/hollow-pd-ag-composite-nanowires-for-fast-responding-and-transparent-hydrogen-sensors
#1
Ji-Soo Jang, Shaopeng Qiao, Seon-Jin Choi, Gaurav Jha, Alana F Ogata, Won-Tae Koo, Dong-Ha Kim, Il-Doo Kim, Reginald M Penner
Pd based alloy materials with hollow nanostructures are ideal hydrogen (H2) sensor building blocks because of the ultra-high surface area afforded by this architecture. In this work, for the first time, we report a simple fabrication process for preparing hollow Pd-Ag alloy nanowires (Pd@Ag HNWs) by using the electrodeposition of lithographically patterned silver nanowires and followed galvanic replacement reaction (GRR) to form palladium. By controlling the GRR time of aligned Ag NWs within an aqueous Pd2+-containing solution, the compositional transition and morphological evolution from Ag NWs to Pd@Ag HNWs simultaneously occurred, and the relative atomic ratio between Pt and Ag was controlled...
September 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28937292/fidget-spinner-battery-led-unit-ingestion-in-a-13-month-old-boy
#2
Jahoon Koo, Douglas Y Tamura
No abstract text is available yet for this article.
September 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28937048/extraperitoneal-rectal-laceration-secondary-to-blunt-trauma-successful-transanal-endoscopic-repair-with-hemoclips
#3
Koo-Yong Hahn, Soon-Young Ko, Woo-Surng Lee, Yong-Hun Kim
No abstract text is available yet for this article.
October 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28935698/polysomnographic-phenotypes-and-their-cardiovascular-implications-in-obstructive-sleep-apnoea
#4
Andrey V Zinchuk, Sangchoon Jeon, Brian B Koo, Xiting Yan, Dawn M Bravata, Li Qin, Bernardo J Selim, Kingman P Strohl, Nancy S Redeker, John Concato, Henry K Yaggi
BACKGROUND: Obstructive sleep apnoea (OSA) is a heterogeneous disorder, and improved understanding of physiologic phenotypes and their clinical implications is needed. We aimed to determine whether routine polysomnographic data can be used to identify OSA phenotypes (clusters) and to assess the associations between the phenotypes and cardiovascular outcomes. METHODS: Cross-sectional and longitudinal analyses of a multisite, observational US Veteran (n=1247) cohort were performed...
September 21, 2017: Thorax
https://www.readbyqxmd.com/read/28935605/pyridoxine-improves-hippocampal-cognitive-function-via-increases-of-serotonin-turnover-and-tyrosine-hydroxylase-and-its-association-with-cb1-cannabinoid-receptor-interacting-protein-and-the-cb1-cannabinoid-receptor-pathway
#5
Hyo Young Jung, Dae Won Kim, Sung Min Nam, Jong Whi Kim, Jin Young Chung, Moo-Ho Won, Je Kyung Seong, Yeo Sung Yoon, Dae Young Yoo, In Koo Hwang
BACKGROUND: In the present study, we investigated the effects of pyridoxine on hippocampal functions and changes in protein profiles based on the proteomic approach. METHODS: Eight-week-old mice received intraperitoneal injections of physiological saline (vehicle) or 350mg/kg pyridoxine twice a day for 21days. RESULTS: Phosphoglycerate mutase 1 was up-regulated, while CB1 cannabinoid receptor-interacting protein 1 (CRIP1) was down-regulated, in the pyridoxine-treated group...
September 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28935081/efficacy-and-safety-of-the-absorb-bioresorbable-vascular-scaffold-in-females-and-males-results-of-an-individual-patient-level-pooled-meta-analysis-of-randomized-controlled-trials
#6
Satya Shreenivas, Dean J Kereiakes, Stephen G Ellis, Runlin Gao, Takeshi Kimura, Yoshinobu Onuma, Karine Piard-Ruster, Yunlong Zhang, Kai Koo, Minh-Thien Vu, Patrick W Serruys, Gregg W Stone
OBJECTIVES: Because females are under-represented in coronary trials, this study sought to assess the relative safety and efficacy of Absorb bioresorbable vascular scaffold (BVS) (Abbott Vascular, Santa Clara, California) and the Xience everolimus-eluting stent in females compared with males. BACKGROUND: The Absorb everolimus-eluting BVS provides drug delivery and mechanical support similar to a metallic drug-eluting stent, followed by resorption and restoration of more normal vascular structure with the potential to improve late clinical outcomes...
September 25, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28934790/factors-associated-with-successful-responses-to-transforaminal-balloon-adhesiolysis-for-chronic-lumbar-foraminal-stenosis-retrospective-study
#7
Doo Hwan Kim, Seong-Sik Cho, Yeon-Jin Moon, Koo Kwon, Kunhee Lee, Jeong-Gil Leem, Jin-Woo Shin, Ji Hyun Park, Seong-Soo Choi
BACKGROUND: Recently, transforaminal balloon adhesiolysis was introduced to manage patients with chronic radicular pain occurring with or without low back pain. However, the factors associated with successful responses to transforaminal balloon adhesiolysis are not known. OBJECTIVE: To evaluate the factors associated with successful responses to transforaminal balloon adhesiolysis for chronic lumbar spinal stenosis. STUDY DESIGN: This is a retrospective observational study...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934115/development-of-genome-wide-ssr-markers-from-angelica-gigas-nakai-using-next-generation-sequencing
#8
Jinsu Gil, Yurry Um, Serim Kim, Ok Tae Kim, Sung Cheol Koo, Chinreddy Subramanyam Reddy, Seong-Cheol Kim, Chang Pyo Hong, Sin-Gi Park, Ho Bang Kim, Dong Hoon Lee, Byung-Hoon Jeong, Jong-Wook Chung, Yi Lee
Angelica gigas Nakai is an important medicinal herb, widely utilized in Asian countries especially in Korea, Japan, and China. Although it is a vital medicinal herb, the lack of sequencing data and efficient molecular markers has limited the application of a genetic approach for horticultural improvements. Simple sequence repeats (SSRs) are universally accepted molecular markers for population structure study. In this study, we found over 130,000 SSRs, ranging from di- to deca-nucleotide motifs, using the genome sequence of Manchu variety (MV) of A...
September 21, 2017: Genes
https://www.readbyqxmd.com/read/28931992/knee-injury-and-osteoarthritis-outcome-score-of-korean-national-ice-hockey-players
#9
Hyeyoung Kim, Sujin Hwang, Byoung-Hee Lee
[Purpose] To investigate sports injuries in Korean national ice hockey players by surveying parts, times, types, frequency, cure, and prevention types of sports injuries and provide basic data for injury prevention and performance improvement of ice hockey players. Another purpose of this study was to evaluate the incidence of ice hockey injuries according to age and the relationship between etiological factors and injuries in high school students. [Subjects and Methods] This was a cross-sectional study. Eighteen female ice hockey players in Korean elite athletes were recruited for this study...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931910/the-role-of-charge-balance-and-excited-state-levels-on-device-performance-of-exciplex-based-phosphorescent-organic-light-emitting-diodes
#10
Sangyeob Lee, Hyun Koo, Ohyun Kwon, Young Jae Park, Hyeonho Choi, Kwan Lee, Byungmin Ahn, Young Min Park
The design of novel exciplex-forming co-host materials provides new opportunities to achieve high device performance of organic light emitting diodes (OLEDs), including high efficiency, low driving voltage and low efficiency roll-off. Here, we report a comprehensive study of exciplex-forming co-host system in OLEDs including the change of co-host materials, mixing composition of exciplex in the device to improve the performance. We investigate various exciplex systems using 5-(3-4,6-diphenyl-1,3,5-triazin-2-yl)phenyl-3,9-diphenyl-9H-carbazole, 5-(3-4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-9-phenyl-9H-3,9'-bicarbazole, and 2-(3-(6,9-diphenyl-9H-carbazol-4-yl)phenyl)-4-phenylbenzo[4,5]thieno[3,2-d]pyrimidine, as electron transporting (ET: electron acceptor) hosts and 9,9'-dipenyl-9H, 9'H-3,3'-bicarbazole and 9-([1,1'-biphenyl]-4-yl)-9'-phenyl-9H,9'H-3,3'-bicarbazole as hole transporting (HT: electron donor) hosts...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931316/long-term-results-of-the-plugging-method-with-regard-to-the-prevention-of-a-postoperative-inguinal-hernia-after-robot-assisted-laparoscopic-prostatectomy-a-retrospective-study
#11
Kwang Suk Lee, Kyo Chul Koo, Byung Ha Chung
PURPOSE: We previously identified that the existence of a patent processus vaginalis (PPV) is an important risk factor for a postoperative inguinal hernia (IH) in patients undergoing robot-assisted laparoscopic prostatectomy, and we introduced a novel plugging method to prevent IH development. The present study aimed to analyze the long-term outcomes of this plugging method. PATIENTS AND METHODS: A total of 1026 groins were reviewed between May 2007 and March 2016...
September 20, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28930350/vertical-dielectric-screening-of-few-layer-van-der-waals-semiconductors
#12
Jahyun Koo, Shiyuan Gao, Hoonkyung Lee, Li Yang
Vertical dielectric screening is a fundamental parameter of few-layer van der Waals two-dimensional (2D) semiconductors. However, unlike the widely-accepted wisdom claiming that the vertical dielectric screening is sensitive to the thickness, our first-principles calculation based on the linear response theory (within the weak field limit) reveals that this screening is independent of the thickness and, in fact, it is the same as the corresponding bulk value. This conclusion is verified in a wide range of 2D paraelectric semiconductors, covering narrow-gap ones and wide-gap ones with different crystal symmetries, providing an efficient and reliable way to calculate and predict static dielectric screening of reduced-dimensional materials...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28929208/proms-in-paediatric-knee-ligament-injury-use-the-pedi-ikdc-and-avoid-using-adult-proms
#13
REVIEW
M Dietvorst, M Reijman, B van Groningen, M C van der Steen, R P A Janssen
PURPOSE: The aim of this systematic review was to present an evidence-based overview of psychometric properties of patient-reported outcome measures (PROMs) for children with knee ligament injury. METHODS: A systematic search of literature was performed in PubMed, EMBASE and Cochrane databases. The inclusion criteria were diagnostic studies evaluating psychometric properties (validity, reliability, responsiveness) and comprehensibility of PROMs as well as studies including children (age < 18 years) with knee ligament injury...
September 19, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28928714/abnormal-cervical-vestibular-evoked-myogenic-potentials-predict-evolution-of-isolated-recurrent-vertigo-into-meniere-s-disease
#14
Sun-Uk Lee, Hyo-Jung Kim, Jeong-Yoon Choi, Ja-Won Koo, Ji-Soo Kim
INTRODUCTION: Vestibular-evoked myogenic potentials (VEMPs) can be abnormal in patients with idiopathic recurrent spontaneous vertigo. We aimed to determine whether abnormal cervical vestibular-evoked myogenic potentials (cVEMPs) can predict evolution of isolated recurrent vertigo into Meniere's disease (MD). METHODS: We had followed up 146 patients with isolated recurrent vertigo and an evaluation of cVEMPs for 0-142 months [median = 6, interquartile range (IQR) = 0-29] at the Dizziness Clinic of Seoul National University Bundang Hospital from June 2003 to May 2014...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28924368/the-effects-of-perioperative-anesthesia-and-analgesia-on-immune-function-in-patients-undergoing-breast-cancer-resection-a-prospective-randomized-study
#15
Jin Sun Cho, Mi-Hyang Lee, Seung Il Kim, Seho Park, Hyung Seok Park, Ein Oh, Jong Ho Lee, Bon-Nyeo Koo
Introduction: Perioperative anesthesia and analgesia exacerbate immunosuppression in immunocompromised cancer patients. The natural killer (NK) cell is a critical part of anti-tumor immunity. We compared the effects of two different anesthesia and analgesia methods on the NK cell cytotoxicity (NKCC) in patients undergoing breast cancer surgery. Methods: Fifty patients undergoing breast cancer resection were randomly assigned to receive propofol-remifentanil anesthesia with postoperative ketorolac analgesia (Propofol-ketorolac groups) or sevoflurane-remifentanil anesthesia with postoperative fentanyl analgesia (Sevoflurane-fentanyl group)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28922015/over-the-top-acl-reconstruction-plus-extra-articular-lateral-tenodesis-with-hamstring-tendon-grafts-prospective-evaluation-with-20-year-minimum-follow-up
#16
Stefano Zaffagnini, Giulio Maria Marcheggiani Muccioli, Alberto Grassi, Tommaso Roberti di Sarsina, Federico Raggi, Cecilia Signorelli, Francisco Urrizola, Paolo Spinnato, Eugenio Rimondi, Maurilio Marcacci
BACKGROUND: There are few published studies with very long-term follow-up of combined intra- and extra-articular anterior cruciate ligament (ACL) reconstruction. PURPOSE: To analyze clinical and radiographic outcomes of over-the-top ACL reconstruction plus extra-articular lateral tenodesis with autologous hamstrings at minimum 20-year follow-up. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Of 60 originally eligible patients who underwent over-the-top ACL reconstruction with double-stranded hamstring tendon (leaving intact graft tibial insertions) and extra-articular lateral plasty (performed with the remnant part of tendons), 52 were prospectively evaluated at a minimum 20-year follow-up (mean follow-up, 24 years; 41 men, 11 women; mean age at time of surgery, 25...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28921658/evaluating-instrument-responsiveness-in-joint-function-the-hoos-jr-the-koos-jr-and-the-promis-pf-cat
#17
Man Hung, Charles L Saltzman, Tom Greene, Maren W Voss, Jerry Bounsanga, Yushan Gu, Mike B Anderson, Christopher L Peters, Jeremy Gililland, Christopher E Pelt
Responsiveness is the ability to detect change over time and is an important aspect of measures used to detect treatment effects. The purpose of this study was to assess the responsiveness of the HOOS JR, the KOOS JR, and the PROMIS Physical Function (PF) computerized adaptive test (CAT) in a joint reconstruction practice. 983 patients were evaluated for joint conditions between 2014 and 2017 in an orthopaedic clinic and completed the three instruments at baseline and three and/or six-month follow-up visits...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28921629/validation-of-prognostic-scores-to-predict-short-term-mortality-in-patients-with-acute-on-chronic-liver-failure
#18
Do Seon Song, Tae Yeob Kim, Dong Joon Kim, Hee Yeon Kim, Dong Hyun Sinn, Eileen L Yoon, Chang Wook Kim, Young Kul Jung, Ki Tae Suk, Sang Soo Lee, Chang Hyeong Lee, Tae Hun Kim, Won Hyeok Choe, Hyung Joon Yim, Sung Eun Kim, Soon Koo Baik, Jae Young Jang, Hyoung Su Kim, Sang Gyune Kim, Jin Mo Yang, Joo Hyun Sohn, Eun Hee Choi, Hyun Chin Cho, Soung Won Jeong, Moon Young Kim
BACKGROUND AND AIM: The aim of this study was to validate the Chronic Liver Failure-Sequential Organ Failure Assessment score (CLIF-SOFAs), CLIF consortium organ failure score (CLIF-C OFs), CLIF-C acute-on-chronic liver failure score (CLIF-C ACLFs), and CLIF-C acute decompensation score (CLIF-C ADs) in Korean chronic liver disease patients with acute deterioration. METHODS: ACLF was defined by either the Asian Pacific Association for the Study of the Liver ACLF Research Consortium (AARC) or CLIF-C criteria...
September 16, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28920922/g%C3%AE-13-ablation-reprograms-myofibers-to-oxidative-phenotype-and-enhances-whole-body-metabolism
#19
Ja Hyun Koo, Tae Hyun Kim, Shi-Young Park, Min Sung Joo, Chang Yeob Han, Cheol Soo Choi, Sang Geon Kim
Skeletal muscle is a key organ in energy homeostasis owing to its high requirement for nutrients. Heterotrimeric G proteins converge signals from cell-surface receptors to potentiate or blunt responses against environmental changes. Here, we show that muscle-specific ablation of Gα13 in mice promotes reprogramming of myofibers to the oxidative type, with resultant increases in mitochondrial biogenesis and cellular respiration. Mechanistically, Gα13 and its downstream effector RhoA suppressed nuclear factor of activated T cells 1 (NFATc1), a chief regulator of myofiber conversion, by increasing Rho-associated kinase 2-mediated (Rock2-mediated) phosphorylation at Ser243...
September 18, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28920432/plk1-targeted-fluorescent-tumor-imaging-with-high-signal-background-ratio
#20
Ji-Ting Hou, Kyung-Phil Ko, Hu Shi, Wen Xiu Ren, Peter Verwilst, Seyoung Koo, Jin Yong Lee, Sung-Gil Chi, Jong Seung Kim
As significantly expressed during cell division, polo-like kinase 1 (PLK1) plays crucial roles in numerous mitotic events and has attracted interest as a potential therapeutic marker in oncological drug discovery. We prepared two small molecular fluorescent probes, 1 and 2, conjugated to SBE13 (a type II PLK1 inhibitor) to investigate the PLK1-targeted imaging of cancer cells and tumors. Enzymatic docking studies, molecular dynamics simulations, in vitro and in vivo imaging experiments, all supported the selective targeting and visualization of PLK1 expressing cells by probes 1 and 2, and probe 2 was successfully demonstrated to image PLK1-upregualted tumors with a remarkable signal to background ratios...
September 18, 2017: ACS Sensors
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