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https://www.readbyqxmd.com/read/28644571/difference-between-respiratory-epithelial-adenomatoid-hamartomas-and-small-malignant-tumors-of-the-olfactory-cleft-on-ct-scans-in-forty-six-patients
#1
Théophile De Saint Hilaire, Cécile Rumeau, Patrice Gallet, Phi-Linh Nguyen-Thi, Roger Jankowski, Duc Trung Nguyen
Misdiagnosis of respiratory epithelial adenomatoid hamartomas for malignant tumors can lead to an aggressive surgical procedure, which is not necessary in the case of a respiratory epithelial adenomatoid hamartoma. Detailed analysis of sinonasal CT scans without contrast can help to distinguish respiratory epithelial adenomatoid hamartomas of the olfactory cleft from small malignant tumors (T1 and T2) of the olfactory clefts. Criteria in favor of diagnosis of small malignant tumors of the olfactory clefts on CT scans without contrast were unilaterality of masses in the olfactory clefts, large olfactory clefts /small olfactory clefts ratio ≥ 2 (sensibility at 91% and specificity at 100%), and presence of bone erosion...
June 23, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28642167/mice-lacking-gpr37-exhibit-decreased-expression-of-the-myelin-associated-glycoprotein-mag-and-increased-susceptibility-to-demyelination
#2
Brilee M Smith, Michelle M Giddens, Jessica Neil, Sharon Owino, TrangKimberly T Nguyen, Duc Duong, Fengqiao Li, Randy A Hall
GPR37 is an orphan G protein-coupled receptor that is predominantly expressed in the brain and found at particularly high levels in oligodendrocytes. GPR37 has been shown to exert effects on oligodendrocyte differentiation and myelination during development, but the molecular basis of these actions is incompletely understood and moreover nothing is known about the potential role(s) of this receptor under demyelinating conditions. To shed light on the fundamental biology of GPR37, we performed proteomic studies comparing protein expression levels in the brains of mice lacking GPR37 and its close relative GPR37-like 1 (GPR37L1)...
June 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28641162/triterpenoids-and-sterols-from-the-grains-of-echinochloa-utilis-ohwi-yabuno-and-their-cytotoxic-activity
#3
Thi Trang Nguyen, Duc Hung Nguyen, Bing Tian Zhao, Duc Dat Le, Byung Sun Min, Young Ho Kim, Mi Hee Woo
Two new tetracyclic triterpenoids, echinochlorins C (1) and D (2), and sawamilletin (3) with new spectroscopic data were isolated from Echinochloa utilis Ohwi & Yabuno grains, along with one known triterpenoid (4) and eight sterols (5-12). Their structures were elucidated by spectroscopic data analyses (IR, UV, MS, and NMR). These compounds were tested in vitro cytotoxic activities against the human tumor-cell lines (HeLa, HL-60, and MCF-7). Compounds 6 and 8 displayed potential cytotoxic activity against HeLa, with IC50 values of 3...
June 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28637484/seasonal-and-geographical-distribution-of-bacillary-dysentery-shigellosis-and-associated-climate-risk-factors-in-kon-tam-province-in-vietnam-from-1999-to-2013
#4
Hu Suk Lee, T T Ha Hoang, Phuc Pham-Duc, Mihye Lee, Delia Grace, Dac Cam Phung, Vu Minh Thuc, Hung Nguyen-Viet
BACKGROUND: Bacillary dysentery (BD) is an acute bacterial infection of the intestine caused by Shigella spp., with clinical symptoms ranging from fever to bloody diarrhoea to abdominal cramps to tenesmus. In Vietnam, enteric bacterial pathogens are an important cause of diarrhoea and most cases in children under 5 years of age are due to Shigella strains. The serogroups S. flexneri and S. sonnei are considered to be the most common. The main objective of this study was to, for the first time, assess the seasonal patterns and geographic distribution of BD in Vietnam, and to determine the climate risk factors associated with the incidence of BD in Kon Tum Province, where the highest rate of bacillary dysentery was observed from 1999 to 2013...
June 21, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28629204/paternal-risk-factors-for-oral-clefts-in-northern-africans-southeast-asians-and-central-americans
#5
Stephanie Ly, Madeleine L Burg, Ugonna Ihenacho, Frederick Brindopke, Allyn Auslander, Kathleen S Magee, Pedro A Sanchez-Lara, Thi-Hai-Duc Nguyen, Viet Nguyen, Maria Irene Tangco, Angela Rose Hernandez, Melissa Giron, Fouzia J Mahmoudi, Yves A DeClerck, William P Magee Iii, Jane C Figueiredo
While several studies have investigated maternal exposures as risk factors for oral clefts, few have examined paternal factors. We conducted an international multi-centered case-control study to better understand paternal risk exposures for oral clefts (cases = 392 and controls = 234). Participants were recruited from local hospitals and oral cleft repair surgical missions in Vietnam, the Philippines, Honduras, and Morocco. Questionnaires were administered to fathers and mothers separately to elicit risk factor and family history data...
June 19, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28628240/comparative-transcriptome-analysis-of-nodules-of-two-mesorhizobium-chickpea-associations-with-differential-symbiotic-efficiency-under-phosphate-deficiency
#6
Maryam Nasr Esfahani, Komaki Inoue, Ha Duc Chu, Kien Huu Nguyen, Chien Van Ha, Yasuko Watanabe, David J Burritt, Luis Herrera-Estrella, Keiichi Mochida, Lam-Son Phan Tran
Phosphate (Pi) deficiency is known to be a major limitation for symbiotic nitrogen fixation (SNF), and hence legume crop productivity globally. However, very little information is available on the adaptive mechanisms, particularly in the important legume crop chickpea (Cicer arietinum L.), which enable nodules to respond to low-Pi availability. Thus, to elucidate these mechanisms in chickpea nodules at molecular level, we used an RNA sequencing approach to investigate transcriptomes of the nodules in Mesorhizobium mediterraneum SWRI9-(MmSWRI9)-chickpea and M...
June 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28619105/patterns-of-antimicrobial-resistance-in-intensive-care-unit-patients-a-study-in-vietnam
#7
Giang M Tran, Thao P Ho-Le, Duc T Ha, Chau H Tran-Nguyen, Tuyet S M Nguyen, Thao T N Pham, Tuyet A Nguyen, Dung A Nguyen, Hoa Q Hoang, Ngoc V Tran, Tuan V Nguyen
BACKGROUND: Antimicrobial resistance has emerged as a major concern in developing countries. The present study sought to define the pattern of antimicrobial resistance in ICU patients with ventilator-associated pneumonia. METHODS: Between November 2014 and September 2015, we enrolled 220 patients (average age ~ 71 yr) who were admitted to ICU in a major tertiary hospital in Ho Chi Minh City, Vietnam. Data concerning demographic characteristics and clinical history were collected from each patient...
June 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28616725/the-role-of-t1-perfusion-based-classification-in-magnetic-resonance-guided-high-intensity-focused-ultrasound-ablation-of-uterine-fibroids
#8
Bilgin Keserci, Nguyen Minh Duc
OBJECTIVE: To comparatively evaluate the role of magnetic resonance (MR) T1 perfusion-based time-signal intensity (SI) curves of fibroid tissue and the myometrium in classification of fibroids for predicting treatment outcomes of high-intensity focused ultrasound (HIFU) treatment. METHODS: The fibroids of 74 women who underwent MR-HIFU treatment were classified into group A (time-SI curve of fibroid lower than that of the myometrium) and group B (time-SI curve of fibroid equal to or higher than that of the myometrium)...
June 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28610317/a-new-species-of-limnonectes-amphibia-anura-dicroglossidae-from-vietnam
#9
Cuong The Pham, Minh Duc Le, Tao Thien Nguyen, Thomas Ziegler, Zheng Jun Wu, Truong Quang Nguyen
A new species of Limnonectes is described from northeastern Vietnam based on morphological and molecular differences. Morphologically, the new species is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: Large size (SVL 50.1-68.9 in males, 45.5-63.0 mm in females); males with moderately enlarged head (HL/SVL 0.48), head longer than wide; vomerine teeth present; external vocal sacs absent; rostral length short (RL/SVL 0.16 in males, 0.15 in females); tympanum distinct (TD/ED 0...
May 24, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609888/a-new-karst-dwelling-species-of-the-gekko-japonicus-group-squamata-gekkonidae-from-central-laos
#10
Vinh Quang Luu, Truong Quang Nguyen, Minh Duc Le, Michael Bonkowski, Thomas Ziegler
A new species of the Gekko japonicus group is described from Khammouane Province, central Laos, based on morphological characters and molecular data. Morphologically, Gekko nadenensis sp. nov. is differentiated from the remaining congeners by a combination of the following characters: size moderate (SVL 61.0-77.1 mm); nares bordered with rostral; internasals absent; postmentals enlarged; interorbital scales between anterior corners of the eyes 28-30; dorsal tubercles absent; ventral scales between mental and cloacal slit 175-185; midbody scale rows 123-140; ventral scale rows 38-40; subdigital lamellae on first toes 13-15, on fourth toes 14-16; finger and toe webbing present at base; tubercles on dorsal surface of fore and hind limbs absent; precloacal pores six (3+3 or 5+1) in a discontinuous row in males, absent in the female; postcloacal tubercles 1 or 2; tubercles absent on dorsal surface of tail base; subcaudals distinctly enlarged; dorsal surface of body with greyish brown blotches...
May 8, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609698/clinical-screening-of-paraquat-in-plasma-samples-using-capillary-electrophoresis-with-contactless-conductivity-detection-towards-rapid-diagnosis-and-therapeutic-treatment-of-acute-paraquat-poisoning-in-vietnam
#11
Anh Phuong Vu, Thi Ngan Nguyen, Thi Trang Do, Thu Ha Doan, Tran Hung Ha, Thi Thao Ta, Hung Long Nguyen, Peter C Hauser, Thi Anh Huong Nguyen, Thanh Duc Mai
The employment of a purpose-made capillary electrophoresis (CE) instrument with capacitively coupled contactless conductivity detection (C(4)D) as a simple and cost-effective solution for clinical screening of paraquat in plasma samples for early-stage diagnosis of acute herbicide poisoning is reported. Paraquat was determined using an electrolyte composed of 10mM histidine adjusted to pH 4 with acetic acid. A detection limit of 0.5mg/L was achieved. Good agreement between results from CE-C(4)D and the confirmation method (HPLC-UV) was obtained, with relative errors for the two pairs of data better than 20% for 31 samples taken from paraquat-intoxicated patients...
June 10, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28597758/longitudinal-change-in-pulmonary-arterial-capacitance-as-an-indicator-of-prognosis-and-response-to-therapy-and-in-pulmonary-arterial-hypertension
#12
Sarah K Medrek, Chad Kloefkorn, Duc T M Nguyen, Edward A Graviss, Adaani E Frost, Zeenat Safdar
Pulmonary arterial hypertension (PAH) is a chronic progressive disease that leads to right heart failure and death. Pulmonary arterial capacitance (PAC), defined as stroke volume divided by the pulmonary pulse pressure, has been identified as a prognostic factor in PAH. The impact of changes in PAC over time, however, is unclear. We evaluated changes in PAC over time to determine if such changes predicted transplant-free survival. A single-center retrospective study of consecutive group 1 PAH patients who had two or more right heart catheterizations (RHC) between January 2007 and June 2016 was undertaken...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28597658/layer-control-of-tubular-graphene-for-corrosion-inhibition-of-nickel-wires
#13
An T Nguyen, Wei-Cheng Lai, Bao Dong To, Duc Dung Nguyen, Ya-Ping Hsieh, Mario Hofmann, Hung-Chih Kan, Chia Chen Hsu
Corrosion protection of complex surface is an active area of research due to its importance to commercial applications such as electrochemical fabrication. However, conventional coatings exhibit limited conductivity, thermal stability, and durability and are thus not suitable. Recent work has shown the potential of graphene, a two-dimensional carbon allotrope, for corrosion pro-tection. The studies, however, limited themselves to simple planar geometries that provide limited insight in the applicability to relevant morphologies, such as mesh electrodes and roughened surfaces...
June 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28587257/graphene-supported-spinel-cufe%C3%A2-o%C3%A2-composites-novel-adsorbents-for-arsenic-removal-in-aqueous-media
#14
Duong Duc La, Tuan Anh Nguyen, Lathe A Jones, Sheshanath V Bhosale
A graphene nanoplate-supported spinel CuFe₂O₄ composite (GNPs/CuFe₂O₄) was successfully synthesized by using a facile thermal decomposition route. Scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Electron Dispersive Spectroscopy (EDS), X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) were employed to characterize the prepared composite. The arsenic adsorption behavior of the GNPs/CuFe₂O₄ composite was investigated by carrying out batch experiments...
June 5, 2017: Sensors
https://www.readbyqxmd.com/read/28572672/control-of-light-absorbance-using-plasmonic-grating-based-perfect-absorber-at-visible-and-near-infrared-wavelengths
#15
Duc Minh Nguyen, Dasol Lee, Junsuk Rho
Conventional metamaterial absorbers have multilayer designs, where the dielectric interlayer is sandwiched between a top patterned metallic structure and bottom metallic film. Here, we demonstrate that a highly polarization-sensitive perfect absorber canbe realized by replacing the bottom metallic film with a plasmonic grating. Designs for broadband and narrowband of wavelength are proposed and numerically investigated. The designed absorbers perform high light absorption, which is above 90% over the wavelength range of 0...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28570507/trends-in-prevalence-of-advanced-hiv-disease-at-antiretroviral-therapy-enrollment-10-countries-2004-2015
#16
Andrew F Auld, Ray W Shiraishi, Ikwo Oboho, Christine Ross, Moses Bateganya, Valerie Pelletier, Jacob Dee, Kesner Francois, Nirva Duval, Mayer Antoine, Chris Delcher, Gracia Desforges, Mark Griswold, Jean Wysler Domercant, Nadjy Joseph, Varough Deyde, Yrvel Desir, Joelle Deas Van Onacker, Ermane Robin, Helen Chun, Isaac Zulu, Ishani Pathmanathan, E Kainne Dokubo, Spencer Lloyd, Rituparna Pati, Jonathan Kaplan, Elliot Raizes, Thomas Spira, Kiren Mitruka, Aleny Couto, Eduardo Samo Gudo, Francisco Mbofana, Melissa Briggs, Charity Alfredo, Carla Xavier, Alfredo Vergara, Ndapewa Hamunime, Simon Agolory, Gram Mutandi, Naemi N Shoopala, Souleymane Sawadogo, Andrew L Baughman, Adebobola Bashorun, Ibrahim Dalhatu, Mahesh Swaminathan, Dennis Onotu, Solomon Odafe, Oseni Omomo Abiri, Henry H Debem, Hank Tomlinson, Velephi Okello, Peter Preko, Trong Ao, Caroline Ryan, George Bicego, Peter Ehrenkranz, Harrison Kamiru, Harriet Nuwagaba-Biribonwoha, Gideon Kwesigabo, Angela A Ramadhani, Kahemele Ng'wangu, Patrick Swai, Mohamed Mfaume, Ramadhani Gongo, Deborah Carpenter, Timothy D Mastro, Carol Hamilton, Julie Denison, Fred Wabwire-Mangen, Olivier Koole, Kwasi Torpey, Seymour G Williams, Robert Colebunders, Julius N Kalamya, Alice Namale, Michelle R Adler, Bridget Mugisa, Sundeep Gupta, Sharon Tsui, Eric van Praag, Duc B Nguyen, Sheryl Lyss, Yen Le, Abu S Abdul-Quader, Nhan T Do, Modest Mulenga, Sebastian Hachizovu, Owen Mugurungi, Beth A Tippett Barr, Elizabeth Gonese, Tsitsi Mutasa-Apollo, Shirish Balachandra, Stephanie Behel, Trista Bingham, Duncan Mackellar, David Lowrance, Tedd V Ellerbrock
Monitoring prevalence of advanced human immunodeficiency virus (HIV) disease (i.e., CD4+ T-cell count <200 cells/μL) among persons starting antiretroviral therapy (ART) is important to understand ART program outcomes, inform HIV prevention strategy, and forecast need for adjunctive therapies.*(,)(†)(,)(§) To assess trends in prevalence of advanced disease at ART initiation in 10 high-burden countries during 2004-2015, records of 694,138 ART enrollees aged ≥15 years from 797 ART facilities were analyzed...
June 2, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28569145/spatial-temporal-distribution-of-genotyped-tuberculosis-cases-in-a-county-with-active-transmission
#17
Saroochi Agarwal, Duc T Nguyen, Larry D Teeter, Edward A Graviss
BACKGROUND: Harris County, Texas is the third most populous county in the United States and consistently has tuberculosis rates above the national average. Understanding jurisdictional epidemiologic characteristics for the most common Mycobacterium tuberculosis genotyped clusters is needed for tuberculosis prevention programs. Our objective is to describe the demographic, laboratory, clinical, temporal and geospatial characteristics for the most common Mycobacterium tuberculosis GENType clusters in Harris County from 2009 to 2015...
May 31, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28566433/mtorc1-inhibition-induces-resistance-to-methotrexate-and-6-mercaptopurine-in-ph-and-ph-like-b-all
#18
Thanh-Trang T Vo, Jong-Hoon S Lee, Duc Nguyen, Brandon Lui, William Pandori, Andrew Khaw, Sharmila Mallya, Mengrou Lu, Markus Müschen, Marina Konopleva, David A Fruman
Elevated activity of the mechanistic target of rapamycin (mTOR) is associated with poor prognosis and higher incidence of relapse in B-cell acute lymphoblastic leukemia (B-ALL). Thus, ongoing clinical trials are testing mTOR inhibitors in combination with chemotherapy in B-ALL. However, the combination of mTOR inhibitors with standard of care chemotherapy drugs has not been studied extensively in high risk B-ALL subtypes. Therefore, we tested whether mTOR inhibition can augment the efficacy of current chemotherapy agents in Ph(+) and Ph-like B-ALL models...
May 31, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28562228/preparation-of-cross-linked-magnetic-chitosan-particles-from-steel-slag-and-shrimp-shells-for-removal-of-heavy-metals
#19
Le Van Thuan, Tran Bao Chau, Tran Thi Kieu Ngan, Tran Xuan Vu, Dinh Duc Nguyen, Minh-Hiep Nguyen, Dang Thi Thanh Thao, Nguyen To Hoai, Le Hoang Sinh
In this study, a new method for preparation of cross-linked magnetic chitosan particles (MCPs) from steel slag and shrimp shells using green tea extract as crosslinking reagent has been presented. The MCPs obtained were characterized by means of X-ray diffraction analysis, Fourier-transform infrared spectroscopy, scanning electron microscopy and magnetic properties, and then were used to investigate the adsorption properties of Cu(II) and Ni(II) ions in aqueous solutions. The influence of experimental conditions such as contact time, pH value, adsorbent dose and initial metal concentration, and the possibility of regeneration were studied systematically...
June 13, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28560883/a-deletion-mutation-in-nfxb-of-in-vitro-induced-moxifloxacin-resistant-pseudomonas-aeruginosa-confers-multidrug-resistance
#20
Van Chi Thai, Hoang Vy Pham, Duc Nhat Minh Nguyen, Peter Lambert, Thi Thu Hoai Nguyen
The modulation of efflux pump functions under fluoroquinolone (FQ) exposure is of great concern as it could result in occurrence of multidrug-resistant (MDR) bacterial strains. In this study, MDR mechanism in Pseudomonas aeruginosa induced via moxifloxacin (MOX) pressure was investigated. After serial MOX [concentration of 0.5 × the minimum inhibitory concentration (MIC)] exposure, the fully susceptible P. aeruginosa ATCC 9027 strain has increased its MIC not only toward MOX (1→128 mg/L) but also to other antibiotics...
May 31, 2017: Acta Microbiologica et Immunologica Hungarica
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