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https://www.readbyqxmd.com/read/28340417/interfacial-interactions-between-skeletonema-costatum-extracellular-organic-matter-and-metal-oxides-implications-for-ceramic-membrane-filtration
#1
Noor Zaouri, Leonardo Gutierrez, Laure Dramas, Daniel Garces, Jean-Philippe Croue
In the current study, the interfacial interactions between the high molecular weight (HMW) compounds of Skeletonema costatum (SKC) extracellular organic matter (EOM) and ZrO2 or Al2O3, were investigated by atomic force microscopy (AFM). HMW SKC-EOM was rigorously characterized and described as a hydrophilic organic compound mainly comprised of polysaccharide-like structures. Lipids and proteins were also observed, although in lower abundance. HMW SKC-EOM displayed attractive forces during approaching (i.e., leading to jump-to-contact events) and adhesion forces during retracting regime to both metal oxides at all solution conditions tested, where electrostatics and hydrogen bonding were suggested as dominant interacting mechanisms...
March 21, 2017: Water Research
https://www.readbyqxmd.com/read/28337361/the-effect-of-endoscopic-resection-on-short-term-surgical-outcomes-in-patients-with-additional-laparoscopic-gastrectomy-after-non-curative-resection-for-gastric-cancer
#2
Eun-Gyeong Lee, Keun-Won Ryu, Bang-Wool Eom, Hong-Man Yoon, Yong-Il Kim, Soo-Jeong Cho, Jong-Yeul Lee, Chan-Gyoo Kim, Il-Ju Choi, Young-Woo Kim
PURPOSE: Endoscopic submucosal dissection (ESD) in early gastric cancer causes an artificial gastric ulcer and local inflammation that has a negative intraprocedural impact on additional laparoscopic gastrectomy in patients with noncurative ESD. In this study, we analyzed the effect of ESD on short-term surgical outcomes and evaluated the risk factors. MATERIALS AND METHODS: From January 2003 to January 2013, 1,704 patients of the National Cancer Center underwent laparoscopic gastrectomy with lymph node dissection because of preoperative stage Ia or Ib gastric cancer...
March 2017: Journal of Gastric Cancer
https://www.readbyqxmd.com/read/28336190/clinical-and-radiological-outcomes-of-midfoot-derotational-osteotomy-for-midfoot-forefoot-varus-deformity
#3
Hong-Geun Jung, Dong-Oh Lee, Sang-Hun Lee, Joon-Sang Eom
BACKGROUND: Moderate to severe midfoot-forefoot varus deformities are commonly found in several conditions. However, few techniques are available to correct these deformities. So, we evaluated the clinical and radiological outcomes of patients who underwent midfoot derotational osteotomy to achieve plantigrade foot. METHODS: From 2006 to 2014, 6 patients (7 feet) underwent midfoot derotational osteotomy. A visual analog scale (VAS) pain and the American Orthopedic Foot & Ankle Society (AOFAS) functional score were evaluated...
March 20, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28332232/paper-based-colorimetric-sensor-system-for-high-throughput-screening-of-c-h-borylation
#4
Han-Sung Kim, Min Sik Eom, Min Su Han, Sunwoo Lee
A paper-based colorimetric sensor system (PBCSS) was developed to detect the amount of bis(pinacolato)diboron (B2Pin2) and applied as a high-throughput screening protocol in Ir-catalyzed C-H borylation. First, 96 ligands were screened for the borylation of benzene, and then 12 of them were selected and tested for five substrates. These reaction mixtures were spotted in the PBCSS, showing a blue-violet color. The value of the gray scale of each reaction was obtained from these colored spots and converted to the extent of conversion of B2Pin2...
March 22, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28326867/adverse-prognostic-impact-of-vascular-endothelial-growth-factor-gene-polymorphisms-in-patients-with-diffuse-large-b-cell-lymphoma
#5
Kyong-Ah Yoon, Min Kyeong Kim, Hyeon-Seok Eom, Hyewon Lee, Weon Seo Park, Ji Yeon Sohn, Man Jin Kim, Sun-Young Kong
Vascular endothelial growth factor (VEGF) plays an important role in angiogenesis and progression of cancer and its expression was associated with gene polymorphisms. Since the impact of polymorphisms of the VEGF on non-Hodgkin lymphoma prognosis has not been fully elucidated, we investigated 149 diffuse large B-cell lymphoma (DLBCL) patients treated with rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) at the National Cancer Center, Korea. Five polymorphisms were analyzed with clinical characteristics as well as international prognostic index (IPI)...
March 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28321491/adverse-pregnancy-outcomes-in-healthcare-workers-a-korean-nationwide-population-based-study
#6
Chulyong Park, Mo-Yeol Kang, Dohyung Kim, Jaechan Park, Huisu Eom, Eun-A Kim
PURPOSE: To assess female healthcare workers' pregnancy complications and outcomes including abortion, fetal screening abnormalities, intrauterine growth retardation (IUGR), and preterm labor using nationwide population data and compare these results with those of the general population in Korea. METHODS: Korean National Health Insurance (NHI) claim data was used. We choose 3 different reference groups for comparison: (1) dependents of employees insured by NHI, i...
March 20, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28316788/chemical-pleurodesis-using-mistletoe-extracts-via-spray-catheter-during-medical-thoracoscopy-for-management-of-malignant-pleural-effusion
#7
Jung Seop Eom, Tae Hwa Kim, Geewon Lee, Hyo Yeong Ahn, Jeong Ha Mok, Min Ki Lee
We present three cases of successful chemical pleurodesis with a liquid solution of mistletoe extract using a spray catheter during medical thoracoscopy. The medical thoracoscopy was performed in all presented cases to remove pleural effusion and conduct chemical pleurodesis to manage symptomatic malignant pleural effusion. A spray catheter was used to instil the mistletoe extract evenly into the pleural cavity, and there were no pleurodesis-related complications. Respiratory symptoms caused by pleural effusion improved after pleurodesis, and successful pleurodesis was maintained for more than 3 months after medical thoracoscopy in all three patients...
May 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28315686/crystal-structure-of-the-catalytic-domain-of-clostridium-perfringens-neuraminidase-in-complex-with-a-non-carbohydrate-based-inhibitor-2-cyclohexylamino-ethanesulfonic-acid
#8
Youngjin Lee, Hyung-Seop Youn, Jung-Gyu Lee, Jun Yop An, Kyoung Ryoung Park, Jung Youn Kang, Young Bae Ryu, Mi Sun Jin, Ki Hun Park, Soo Hyun Eom
Anti-bacterial and anti-viral neuraminidase agents inhibit neuraminidase activity catalyzing the hydrolysis of terminal N-acetylneuraminic acid (Neu5Ac) from glycoconjugates and help to prevent the host pathogenesis that lead to fatal infectious diseases including influenza, bacteremia, sepsis, and cholera. Emerging antibiotic and drug resistances to commonly used anti-neuraminidase agents such as oseltamivir (Tamiflu) and zanamivir (Relenza) have highlighted the need to develop new anti-neuraminidase drugs...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28315066/failure-patterns-according-to-molecular-subtype-in-patients-with-invasive-breast-cancer-following-postoperative-adjuvant-radiotherapy-long-term-outcomes-in-contemporary-clinical-practice
#9
Yu Jin Lim, Sea-Won Lee, Noorie Choi, Jeanny Kwon, Keun-Yong Eom, Eunyoung Kang, Eun-Kyu Kim, Sung-Won Kim, Jee Hyun Kim, Yu Jung Kim, Se Hyun Kim, So Yeon Park, Jae-Sung Kim, In Ah Kim
PURPOSE: Although gene expression profiling provides critical information, knowledge remains limited regarding the differential effects of molecular subtype on clinical course. This study evaluated the impact of molecular status on long-term patterns of failure in patients with non-metastatic breast cancer. METHODS: We analyzed data from 1181 individuals with invasive breast cancer undergoing surgery plus PORT from 2003 to 2011. Molecular subtypes were defined as luminal A (LA), luminal B (LB)-HER2(-), LB-HER2(+), HER2, and triple-negative (TN) based on the 2013 St...
March 17, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28306598/comparing-the-effects-of-particulate-matter-on-the-ocular-surfaces-of-normal-eyes-and-a-dry-eye-rat-model
#10
Ji Yun Han, Boram Kang, Youngsub Eom, Hyo Myung Kim, Jong Suk Song
PURPOSE: To compare the effect of exposure to particulate matter on the ocular surface of normal and experimental dry eye (EDE) rat models. METHODS: Titanium dioxide (TiO2) nanoparticles were used as the particulate matter. Rats were divided into 4 groups: normal control group, TiO2 challenge group of the normal model, EDE control group, and TiO2 challenge group of the EDE model. After 24 hours, corneal clarity was compared and tear samples were collected for quantification of lactate dehydrogenase, MUC5AC, and tumor necrosis factor-α concentrations...
March 16, 2017: Cornea
https://www.readbyqxmd.com/read/28303592/trend-of-measles-mumps-and-rubella-incidence-following-the-measles-rubella-catch-up-vaccination-in-the-republic-of-korea-2001
#11
Young June Choe, Hye-Eun Eom, Sung-Il Cho
Following the introduction of measles-rubella (MR) catch-up vaccination in 2001 and two dose measles-mumps-rubella (MMR2) keep-up program in 2002, the incidence of measles, mumps and rubella was not evaluated systematically. To describe the recent changes in epidemiology, a population based incidence study from 2001 to 2015 using national notifiable disease surveillance data was conducted. Between 2001 and 2015, there was decrease in the incidence of measles and rubella, whereas a steady increase in mump incidence was noted...
March 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28301726/is-the-bethe-salpeter-formalism-accurate-for-excitation-energies-comparisons-with-td-dft-caspt2-and-eom-ccsd
#12
Denis Jacquemin, Ivan Duchemin, Xavier Blase
Developing ab initio approaches able to provide accurate excited-state energies at a reasonable computational cost is one of the biggest challenges in theoretical chemistry. In that framework, the Bethe-Salpeter equation approach, combined with the GW exchange-correlation self-energy, which maintains the same scaling with system size as TD-DFT, has recently been the focus of a rapidly increasing number of applications in molecular chemistry. Using a recently proposed set encompassing excitation energies of many kinds [J...
March 21, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28290503/electrospun-nb-doped-tio2-nanofiber-support-for-pt-nanoparticles-with-high-electrocatalytic-activity-and-durability
#13
MinJoong Kim, ChoRong Kwon, KwangSup Eom, JiHyun Kim, EunAe Cho
This study explores a facile method to prepare an efficient and durable support for Pt catalyst of polymer electrolyte membrane fuel cell (PEMFC). As a candidate, Nb-doped TiO2 (Nb-TiO2) nanofibers are simply fabricated using an electrospinning technique, followed by a heat treatment. Doping Nb into the TiO2 nanofibers leads to a drastic increase in electrical conductivity with doping level of up to 25 at. % (Nb0.25Ti0.75O2). Pt nanoparticles are synthesized on the prepared 25 at. % Nb-doped TiO2-nanofibers (Pt/Nb-TiO2) as well as on a commercial powdered carbon black (Pt/C)...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28289707/eomesodermin-and-t-bet-mark-developmentally-distinct-human-natural-killer-cells
#14
Amélie Collins, Nyanza Rothman, Kang Liu, Steven L Reiner
Immaturity of the immune system of human fetuses and neonates is often invoked to explain their increased susceptibility to infection; however, the development of the fetal innate immune system in early life remains incompletely explored. We now show that the most mature NK cells found in adult (or postnatal) human circulation (CD94(-)CD16(+)) are absent during ontogeny. Human fetal NK cells were found to express the 2 signature T-box transcription factors essential for the development of all murine NK and NK-like cells, eomesodermin (Eomes) and T-bet...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28286659/the-current-condition-of-the-workers-general-health-examination-in-south-korea-a-retrospective-study
#15
Young Joong Kang, Jun-Pyo Myong, Huisu Eom, Bowha Choi, Jong Heon Park, Eun-A L Kim
BACKGROUND: Business owners in the Republic of Korea must take part in the workers' general health examination. However, there have been few formal analyses of the uptake of this examination by employees. In the present study, we examined the rates of participation in medical examinations according to age group, health insurance type, and enterprise size, and then compared these results with those of the national general health screening. Furthermore, we determined the distribution of patients with abnormal results for diabetes and hypertension, and outlined the significance and history of domestic health examinations...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28284668/a-lagrange-based-generalised-formulation-for-the-equations-of-motion-of-simple-walking-models
#16
Michael McGrath, David Howard, Richard Baker
Simple 2D models of walking often approximate the human body to multi-link dynamic systems, where body segments are represented by rigid links connected by frictionless hinge joints. Performing forward dynamics on the equations of motion (EOM) of these systems can be used to simulate their movement. However, deriving these equations can be time consuming. Using Lagrangian mechanics, a generalised formulation for the EOM of n-link open-loop chains is derived. This can be used for single support walking models...
February 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28284326/effects-of-particulate-matter-on-respiratory-disease-and-the-impact-of-meteorological-factors-in-busan-korea
#17
Eun-Jung Jo, Woo-Seop Lee, Hyun-Young Jo, Chang-Hoon Kim, Jung-Seop Eom, Jeong-Ha Mok, Mi-Hyun Kim, Kwangha Lee, Ki-Uk Kim, Min-Ki Lee, Hye-Kyung Park
BACKGROUND: Both air pollution and weather impact hospitalization for respiratory diseases. However, few studies have investigated the contribution of weather to hospitalization related to the adverse effects of air pollution. This study analyzed the effects of particulate matter (PM) on daily respiratory-related hospital admissions, taking into account meteorological factors. METHODS: Daily hospital admissions for respiratory diseases (acute bronchitis, allergic rhinitis, and asthma) between 2007 and 2010 were extracted from the National Health Insurance Corporation, Korea...
March 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28283910/hyperglycemia-impedes-definitive-endoderm-differentiation-of-human-embryonic-stem-cells-by-modulating-histone-methylation-patterns
#18
A C H Chen, Y L Lee, S W Fong, C C Y Wong, E H Y Ng, W S B Yeung
Exposure to maternal diabetes during fetal growth is a risk factor for the development of type II diabetes (T2D) in later life. Discovery of the mechanisms involved in this association should provide valuable background for therapeutic treatments. Early embryogenesis involves epigenetic changes including histone modifications. The bivalent histone methylation marks H3K4me3 and H3K27me3 are important for regulating key developmental genes during early fetal pancreas specification. We hypothesized that maternal hyperglycemia disrupted early pancreas development through changes in histone bivalency...
March 10, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28283063/systemic-human-ilc-precursors-provide-a-substrate-for-tissue-ilc-differentiation
#19
Ai Ing Lim, Yan Li, Silvia Lopez-Lastra, Ralph Stadhouders, Franziska Paul, Armanda Casrouge, Nicolas Serafini, Anne Puel, Jacinta Bustamante, Laura Surace, Guillemette Masse-Ranson, Eyal David, Helene Strick-Marchand, Lionel Le Bourhis, Roberto Cocchi, Davide Topazio, Paolo Graziano, Lucia Anna Muscarella, Lars Rogge, Xavier Norel, Jean-Michel Sallenave, Matthieu Allez, Thomas Graf, Rudi W Hendriks, Jean-Laurent Casanova, Ido Amit, Hans Yssel, James P Di Santo
Innate lymphoid cells (ILCs) represent innate versions of T helper and cytotoxic T cells that differentiate from committed ILC precursors (ILCPs). How ILCPs give rise to mature tissue-resident ILCs remains unclear. Here, we identify circulating and tissue ILCPs in humans that fail to express the transcription factors and cytokine outputs of mature ILCs but have these signature loci in an epigenetically poised configuration. Human ILCPs robustly generate all ILC subsets in vitro and in vivo. While human ILCPs express low levels of retinoic acid receptor (RAR)-related orphan receptor C (RORC) transcripts, these cells are found in RORC-deficient patients and retain potential for EOMES(+) natural killer (NK) cells, interferon gamma-positive (IFN-γ(+)) ILC1s, interleukin (IL)-13(+) ILC2s, and for IL-22(+), but not for IL-17A(+) ILC3s...
March 9, 2017: Cell
https://www.readbyqxmd.com/read/28279868/interactions-of-specific-extracellular-organic-matter-and-polyaluminum-chloride-and-their-roles-in-the-algae-polluted-water-treatment
#20
Xiaomin Tang, Huaili Zheng, Baoyu Gao, Chuanliang Zhao, Bingzhi Liu, Wei Chen, Jinsong Guo
Extracellular organic matter (EOM) is ubiquitous in the algae-polluted water and has a significant impact on the human health and drinking water treatment. We investigate the different characteristics of dissolved extracellular organic matter (dEOM) and bound extracellular organic matter (bEOM) recovered from the various growth period of Microcystis aeruginosa and the interactions of them and polyaluminum chloride (PACl). The roles of the different EOM in the algae-polluted water treatment are also discussed...
March 1, 2017: Journal of Hazardous Materials
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