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Duc Nguyen

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https://www.readbyqxmd.com/read/28332438/quantitative-structure-activity-relationship-analysis-and-virtual-screening-studies-for-identifying-hdac2-inhibitors-from-known-hdac-bioactive-chemical-libraries
#1
H Pham-The, G Casañola-Martin, K Diéguez-Santana, N Nguyen-Hai, N T Ngoc, L Vu-Duc, H Le-Thi-Thu
Histone deacetylases (HDAC) are emerging as promising targets in cancer, neuronal diseases and immune disorders. Computational modelling approaches have been widely applied for the virtual screening and rational design of novel HDAC inhibitors. In this study, different machine learning (ML) techniques were applied for the development of models that accurately discriminate HDAC2 inhibitors form non-inhibitors. The obtained models showed encouraging results, with the global accuracy in the external set ranging from 0...
March 2017: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/28330156/effect-of-salicylic-acid-on-expression-level-of-genes-related-with-isoprenoid-pathway-in-centella-centella-asiatica-l-urban-cells
#2
Nguyen Hoang Loc, Nguyen Thanh Giang, Nguyen Duc Huy
In this study, we report the expression level of CaSQS, CabAS and CaCYS, the genes involved in phytosterol and triterpene metabolic pathway of centella (Centella asiatica (L.) Urban), in cells elicited with salicylic acid (50-200 µM). Reverse transcription-polymerase chain reaction (RT-PCR) and Northern blot analysis indicated CaSQS, CabAS, and CaCYS genes expressed in both the wild-type and cultured cells (with and without elicitation). In elicited cells, expressions of CaSQS, CabAS, and CaCYS genes showed strong dependence on salicylic acid concentration and elicitation day...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28320341/seasonal-patterns-of-dengue-fever-and-associated-climate-factors-in-4-provinces-in-vietnam-from-1994-to-2013
#3
Hu Suk Lee, Hung Nguyen-Viet, Vu Sinh Nam, Mihye Lee, Sungho Won, Phuc Pham Duc, Delia Grace
BACKGROUND: In Vietnam, dengue fever (DF) is still a leading cause of hospitalization. The main objective of this study was to evaluate the seasonality and association with climate factors (temperature and precipitation) on the incidences of DF in four provinces where the highest incidence rates were observed from 1994 to 2013 in Vietnam. METHODS: Incidence rates (per 100,000) were calculated on a monthly basis from during the study period. The seasonal-decomposition procedure based on loess (STL) was used in order to assess the trend and seasonality of DF...
March 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28302582/characterization-of-pegylated-and-non-pegylated-liposomal-formulation-for-the-delivery-of-hypoxia-activated-vinblastine-n-oxide-for-the-treatment-of-solid-tumors
#4
Vidhi M Shah, Duc X Nguyen, Adel Alfatease, Shay Bracha, Adam Wg Alani
Solid tumors often contain hypoxic regions which are resistant to standard chemotherapy and radiotherapy. We have developed a liposomal delivery system for a prodrug of vinblastine (CPD100) which converts to the parent compound only in the presence of lower oxygen levels. As a part of this work we have developed and optimized two formulations of CPD100: one composed of sphingomyelin/cholesterol (55/45; mol/mol) (CPD100Li) and the other composed of sphingomyelin/cholesterol/PEG (55/40/5; mol/mol) (CPD100 PEGLi)...
March 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28298536/pasteurization-procedures-for-donor-human-milk-affect-body-growth-intestinal-structure-and-resistance-against-bacterial-infections-in-preterm-pigs
#5
Yanqi Li, Duc Ninh Nguyen, Marita de Waard, Lars Christensen, Ping Zhou, Pingping Jiang, Jing Sun, Anders Miki Bojesen, Charlotte Lauridsen, Jens Lykkesfeldt, Trine Kastrup Dalsgaard, Stine Brandt Bering, Per Torp Sangild
Background: Holder pasteurization (HP) destroys multiple bioactive factors in donor human milk (DM), and UV-C irradiation (UVC) is potentially a gentler method for pasteurizing DM for preterm infants.Objective: We investigated whether UVC-treated DM improves gut maturation and resistance toward bacterial infections relative to HP-treated DM.Methods: Bacteria, selected bioactive components, and markers of antioxidant capacity were measured in unpasteurized donor milk (UP), HP-treated milk, and UVC-treated milk (all from the same DM pool)...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28296244/-watchful-observation-follow-up-scheme-after-endoscopic-co2-laser-treatment-for-small-glottic-carcinomas-a-retrospective-study-of-93-cases
#6
Patrice Gallet, Cécile Rumeau, Duc Trung Nguyen, Pedro Augusto Teixeira, Cédric Baumann, Bruno Toussaint
OBJECTIVES: Evaluate the clinical outcome of patients treated with CO2-laser surgery for early-stage glottic carcinomas followed-up with 3 month laryngoscopy regardless of tumor grade and margins. DESIGN: Case series. SETTING: Retrospective review of the clinical records of patients treated at the ENT department of a tertiary university hospital. PARTICIPANTS AND METHOD: Clinical records from patients with early-stage glottic carcinomas (Tis-T2) treated with curative intent by CO2-laser surgery in a ten year period were evaluated...
March 10, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28281880/detection-of-antibiotics-in-chicken-eggs-obtained-from-supermarkets-in-ho-chi-minh-city-vietnam
#7
Takahiro Yamaguchi, Masahiro Okihashi, Kazuo Harada, Yoshimasa Konishi, Kotaro Uchida, Mai Hoang Ngoc Do, Long Thi Bui, Thinh Duc Nguyen, Ha Bich Phan, Huong Dang Thien Bui, Phuc Do Nguyen, Keiji Kajimura, Yuko Kumeda, Chinh Van Dang, Kazumasa Hirata, Yoshimasa Yamamoto
The residual levels of antibiotics in Vietnamese eggs were monitored from 2014 to 2015. A total of 111 egg packages, distributed by 11 different companies, were collected from supermarkets in Ho Chi Minh City and the levels of 28 antibiotics were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS) screening method. Sixteen samples tested positive for antibiotics; a total of eight compounds (enrofloxacin, ciprofloxacin, norfloxacin, sulfadimethoxine, sulfamethazine, sulfamonomethoxine, tilmicosin and trimethoprim) were detected...
March 10, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28261823/effects-of-aging-on-cadmium-concentrations-and-renal-dysfunction-in-inhabitants-in-cadmium-polluted-regions-in-japan
#8
Hoang Duc Phuc, Teruhiko Kido, Nguyen Thi Phuong Oanh, Ho Dung Manh, Le Thai Anh, Yuko Oyama, Rie Okamoto, Akie Ichimori, Kazuhiro Nogawa, Yasushi Suwazono, Hideaki Nakagawa
The absorption of cadmium (Cd) may lead to Cd-related diseases such as renal tubular dysfunction and bone disease, and it is known to take around 10-30 years to reduce Cd concentrations to half their original levels. Urinary β2 -microglobulin (β2 -MG), N-acetyl-β-D-glucosaminidase (NAG), protein, glucose and albumin were used as indicators of renal dysfunction caused by Cd exposure. Our previous study found that urinary Cd concentrations had increased recently and that age was more strongly associated with urinary β2 -MG concentration than recent Cd body burden...
March 6, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28239535/acoustic-wave-science-realized-by-metamaterials
#9
REVIEW
Dongwoo Lee, Duc Minh Nguyen, Junsuk Rho
Artificially structured materials with unit cells at sub-wavelength scale, known as metamaterials, have been widely used to precisely control and manipulate waves thanks to their unconventional properties which cannot be found in nature. In fact, the field of acoustic metamaterials has been much developed over the past 15 years and still keeps developing. Here, we present a topical review of metamaterials in acoustic wave science. Particular attention is given to fundamental principles of acoustic metamaterials for realizing the extraordinary acoustic properties such as negative, near-zero and approaching-infinity parameters...
2017: Nano Converg
https://www.readbyqxmd.com/read/28237484/viral-co-infections-among-children-with-confirmed-measles-at-hospitals-in-hanoi-vietnam-2014
#10
Le Khanh Nguyen Hang, Loan Phuong Do, Thanh Thi Trieu Van, Son Vu Nguyen, Phuong Vu Mai Hoang, Hien Thi Pham, Thanh Thi Le, Huong Thi Thu Tran, Cuong Duc Vuong, Thi Quynh Le Mai
OBJECTIVE: To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak. METHODS: Throat swabs were collected from 54 pediatric patients with confirmed measles, and molecular diagnostics performed for 10 additional viral respiratory pathogens (Influenza A/H1N1pdm09; A/H3N2 and influenza B; Parainfluenza 1, 2, 3; Respiratory Synctial Virus, RSV; human Metapneumovirus, hMPV; Adenovirus and Picornavirus). RESULTS: Twenty-one cases (38...
February 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28224994/quantum-criticality-at-the-superconductor-insulator-transition-revealed-by-specific-heat-measurements
#11
S Poran, T Nguyen-Duc, A Auerbach, N Dupuis, A Frydman, Olivier Bourgeois
The superconductor-insulator transition (SIT) is considered an excellent example of a quantum phase transition that is driven by quantum fluctuations at zero temperature. The quantum critical point is characterized by a diverging correlation length and a vanishing energy scale. Low-energy fluctuations near quantum criticality may be experimentally detected by specific heat, cp, measurements. Here we use a unique highly sensitive experiment to measure cp of two-dimensional granular Pb films through the SIT. The specific heat shows the usual jump at the mean field superconducting transition temperature marking the onset of Cooper pairs formation...
February 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28221937/food-safety-perceptions-and-practices-among-smallholder-pork-value-chain-actors-in-hung-yen-province-vietnam
#12
Sinh Dang-Xuan, Hung Nguyen-Viet, Tongkorn Meeyam, Reinhard Fries, Huong Nguyen-Thanh, Phuc Pham-Duc, Steven Lam, Delia Grace, Fred Unger
Pork safety is an important public health concern in Vietnam and is a shared responsibility among many actors along the pork value chain. We examined the knowledge, perceptions, and practices regarding food safety, disease, and health risk among selected pork value chain actors (slaughterhouse owners and workers, people living around slaughterhouses, pork sellers, consumers, and veterinary and public health staff) in three districts in Hung Yen Province, Vietnam. We randomly selected 52 pork value chain actors to be surveyed through questionnaires, observation checklists, key informant interviews, and focus group discussions...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28218240/scaffolding-and-completing-genome-assemblies-in-real-time-with-nanopore-sequencing
#13
Minh Duc Cao, Son Hoang Nguyen, Devika Ganesamoorthy, Alysha G Elliott, Matthew A Cooper, Lachlan J M Coin
Third generation sequencing technologies provide the opportunity to improve genome assemblies by generating long reads spanning most repeat sequences. However, current analysis methods require substantial amounts of sequence data and computational resources to overcome the high error rates. Furthermore, they can only perform analysis after sequencing has completed, resulting in either over-sequencing, or in a low quality assembly due to under-sequencing. Here we present npScarf, which can scaffold and complete short read assemblies while the long read sequencing run is in progress...
February 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28214557/quadruple-first-line-drug-resistance-in-mycobacterium-tuberculosis-in-vietnam-what-can-we-learn-from-genes
#14
Huy Quang Nguyen, Nhung Viet Nguyen, Lucie Contamin, Thanh Hoa Thi Tran, Thuong Thi Vu, Hung Van Nguyen, Ngoc Lan Thi Nguyen, Son Thai Nguyen, Anh Duc Dang, Anne-Laure Bañuls, Van Anh Thi Nguyen
In Vietnam, a country with high tuberculosis (137/100.000 population) and multidrug-resistant (MDR)-TB burdens (7.8/100.000 population), little is known about the molecular signatures of drug resistance in general and more particularly of second line drug (SLD) resistance. This study is specifically focused on Mycobacterium tuberculosis isolates resistant to four first-line drugs (FLDs) that make TB much more difficult to treat. The aim is to determine the proportion of SLD resistance in these quadruple drug resistant isolates and the genetic determinants linked to drug resistance to better understand the genetic processes leading to quadruple and extremely drug resistance (XDR)...
February 21, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28213653/perceived-risk-of-avian-influenza-and-urbanization-in-northern-vietnam
#15
Melissa L Finucane, Nghiem Tuyen, Sumeet Saksena, James H Spencer, Jefferson M Fox, Nguyen Lam, Trinh Dinh Thau, Tran Duc Vien, Nancy Davis Lewis
Highly pathogenic avian influenza (HPAI) is an important public health concern because of potential for widespread morbidity and mortality in humans and poultry and associated devastating economic losses. We examined how perceptions of the risk of HPAI in poultry vary across communes/wards in the north of Vietnam at different levels of urbanization (rural, peri-urban, urban). Analyses of questionnaire responses from 1081 poultry raisers suggested that the perceived risk of HPAI in poultry was highest in peri-urban and rural settings...
February 17, 2017: EcoHealth
https://www.readbyqxmd.com/read/28211071/accurate-robust-and-reliable-calculations-of-poisson-boltzmann-binding-energies
#16
Duc D Nguyen, Bao Wang, Guo-Wei Wei
Poisson-Boltzmann (PB) model is one of the most popular implicit solvent models in biophysical modeling and computation. The ability of providing accurate and reliable PB estimation of electrostatic solvation free energy, ΔGel, and binding free energy, ΔΔGel, is important to computational biophysics and biochemistry. In this work, we investigate the grid dependence of our PB solver (MIBPB) with solvent excluded surfaces for estimating both electrostatic solvation free energies and electrostatic binding free energies...
May 15, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28208716/cell-imaging-counting-as-a-novel-ex-vivo-approach-for-investigating-drug-induced-hepatotoxicity-in-zebrafish-larvae
#17
Xuan-Bac Nguyen, Stanislav Kislyuk, Duc-Hung Pham, Angela Kecskés, Jan Maes, Deirdre Cabooter, Pieter Annaert, Peter De Witte, Annelii Ny
Drug-induced liver injury (DILI) is the most common reason for failures during the drug development process and for safety-related withdrawal of drugs from the pharmaceutical market. Therefore, having tools and techniques that can detect hepatotoxic properties in drug candidates at an early discovery stage is highly desirable. In this study, cell imaging counting was used to measure in a fast, straightforward, and unbiased way the effect of paracetamol and tetracycline, (compounds known to cause hepatotoxicity in humans) on the amount of DsRed-labeled hepatocytes recovered by protease digestion from Tg(fabp10a:DsRed) transgenic zebrafish...
February 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28199405/co-financing-for-viral-load-monitoring-during-the-course-of-antiretroviral-therapy-among-patients-with-hiv-aids-in-vietnam-a-contingent-valuation-survey
#18
Quyen Le Thi Nguyen, Long Hoang Nguyen, Bach Xuan Tran, Huong Thi Thu Phan, Huong Thi Le, Hinh Duc Nguyen, Tho Dinh Tran, Cuong Duy Do, Cuong Manh Nguyen, Vu Thi Minh Thuc, Carl Latkin, Melvyn W B Zhang, Roger C M Ho
BACKGROUND: Viral load testing is considered the gold standard for monitoring HIV treatment; however, given its high cost, some patients cannot afford viral load testing if this testing is not subsidized. Since foreign aid for HIV/AIDS in Vietnam is rapidly decreasing, we sought to assess willingness to pay (WTP) for viral load and CD4 cell count tests among HIV-positive patients, and identified factors that might inform future co-payment schemes. METHODS: A multi-site cross-sectional survey was conducted with 1133 HIV-positive patients on antiretroviral therapy (ART) in Hanoi and Nam Dinh...
2017: PloS One
https://www.readbyqxmd.com/read/28192199/viral-hemorrhagic-septicemia-virus-glycoprotein-production-in-tobacco
#19
Nguyen-Quang-Duc Tien, Tae-Jung Kim, Tae-Geum Kim
Viral hemorrhagic septicemia virus (VHSV) causes mortality in numerous marine and freshwater fish species resulting in heavy losses in fish farming. The glycoprotein gene of VHSV was fused with the cholera toxin B subunit (CTB) and expressed transiently in leaf tissues of Nicotiana benthamiana via the agroinfiltration method. The glycoprotein gene was divided into two parts to improve assembly of CTB fusion proteins (CTB-VHSV99-235 and CTB-VHSV258-417). Production of CTB fusion proteins was confirmed in the agroinfiltrated leaf tissue by western blot analysis...
February 9, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28187721/assessing-the-link-between-witnessing-inter-parental-violence-and-the-perpetration-of-intimate-partner-violence-in-bangladesh
#20
Md Jahirul Islam, Mosiur Rahman, Lisa Broidy, Syed Emdadul Haque, Yu Mon Saw, Nguyen Huu Chau Duc, Md Nurruzzaman Haque, Md Mostafizur Rahman, Md Rafiqul Islam, Md Golam Mostofa
BACKGROUND: We aimed to examine the influence of witnessing father-to-mother violence on: 1) perpetration of intimate partner violence (IPV); and 2) endorsement of attitudes justifying wife beating in Bangladesh. METHODS: This paper used data from the 2007 Bangladesh Demographic Health Survey. The analyses were based on the responses of 3374 ever-married men. Exposure to IPV was determined by men's self-reports of witnessing inter-parental violence in childhood...
February 10, 2017: BMC Public Health
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