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Thuy Tran

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https://www.readbyqxmd.com/read/28776220/nanostructured-lipid-carriers-to-enhance-transdermal-delivery-and-efficacy-of-diclofenac
#1
Chien Ngoc Nguyen, Thi Thuy Trang Nguyen, Hanh Thuy Nguyen, Tuan Hiep Tran
Lipid carrier-mediated transdermal drug delivery offers several advantages because it is non-irritating and non-toxic, provides effective control of drug release, and forms an adhesive film that hydrates the outer skin layers. However, to penetrate the deeper skin layers, these formulations need to overcome several barriers in the stratum corneum. This study evaluates factors influencing particle size and drug-loading capacity, which play a key role in drug permeation and efficacy. Diclofenac sodium was chosen as the model drug...
August 3, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28771136/assessing-evidence-for-avian-to-human-transmission-of-influenza-a-h9n2-virus-in-rural-farming-communities-in-northern-vietnam
#2
Le Nguyen Minh Hoa, Nguyen Anh Tuan, Pham Ha My, Tran Thi Kieu Huong, Nguyen Thi Yen Chi, Trang Thi Hau Thu, Juan Carrique-Mas, Mai Thuy Duong, Nguyen Dang Tho, Nguyen Dang Hoang, To Long Thanh, Nguyen Thi Diep, Nguyen van Duong, Tran Khanh Toan, Trinh Son Tung, Le Quynh Mai, Munir Iqbal, Heiman Wertheim, H Rogier van Doorn, Juliet E Bryant, The Vizions Consortium
Rural farming communities in northern Vietnam do not routinely practice vaccination for influenza A viruses (IAV) for either humans or poultry, which enables us to study transmission intensity via seroepidemiology. Using samples from a longitudinal cohort of farming households, we determined the number of symptomatic and asymptomatic human infections for seasonal IAV and avian A/H9 over 2 years. As expected, we detected virologically confirmed acute cases of seasonal IAV in humans, as well as large numbers of subclinical seroconversions to A/H1pdm [55/265 (21 %)], A/H3 [95/265 (36 %)] and A/H9 [24/265 (9 %)]...
August 4, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28764695/compliance-with-telephone-triage-advice-among-adults-aged-45%C3%A2-years-and-older-an-australian-data-linkage-study
#3
Duong Thuy Tran, Amy Gibson, Deborah Randall, Alys Havard, Mary Byrne, Maureen Robinson, Anthony Lawler, Louisa R Jorm
BACKGROUND: Middle-aged and older patients are prominent users of telephone triage services for timely access to health information and appropriate referrals. Non-compliance with advice to seek appropriate care could potentially lead to poorer health outcomes among those patients. It is imperative to assess the extent to which middle-aged and older patients follow triage advice and how this varies according to their socio-demographic, lifestyle and health characteristics as well as features of the call...
August 1, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28756918/xanthine-oxidase-inhibitors-from-archidendron-clypearia-jack-i-c-nielsen-results-from-systematic-screening-of-vietnamese-medicinal-plants
#4
Nguyen Thuy Duong, Pham Duc Vinh, Phuong Thien Thuong, Nguyen Thi Hoai, Le Nguyen Thanh, Tran The Bach, Nguyen Hai Nam, Nguyen Hoang Anh
OBJECTIVE: To screen Vietnamese medicinal plants for xanthine oxidase (XO) inhibitory activity and to isolate XO inhibitor(s) from the most active plant. METHODS: The plants materials were extracted by methanol. The active plant materials were fractionated using different organic solvents, including n-hexane, ethyl acetate, and n-butanol. Bioassay-guided fractionation and column chromatography were used to isolate compounds. The compounds structures were elucidated by analysis of spectroscopic data, including IR, MS, and NMR...
June 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28756357/high-performance-liquid-chromatography-with-time-programmed-fluorescence-detection-for-the-quantification-of-levofloxacin-in-human-plasma-and-cerebrospinal-fluid-in-adults-with-tuberculous-meningitis
#5
Pham Van Toi, Thomas Pouplin, Nguyen Duc Khanh Tho, Pham Nguyen Phuong, Tran Thi Hong Chau, Nguyen Thuy Thuong Thuong, Dorothee Heemskerk, Tran Tinh Hien, Guy E Thwaites
An accurate and reliable high-performance liquid chromatography with time-programmed fluorescence detection was developed and validated to measure levofloxacin in human plasma and cerebrospinal fluid (CSF). After solid phase extraction process using Evolute(®) ABN 96 fixed well plate; levofloxacin and internal standard-enoxacin were separated using a mobile phase consisting of phosphate buffer 10mM with 0.025% triethylamine pH 3.0 - acetonitrile (88:12, v/v) on a Purosphere RP-8e column (5μm, 125×4.0mm) at a flow rate of 1...
July 20, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28742863/antibacterial-activity-of-tannins-isolated-from-sapium-baccatum-extract-and-use-for-control-of-tomato-bacterial-wilt
#6
Thuy Thu Vu, Hun Kim, Vu Khac Tran, Hoang Dinh Vu, Tien Xuan Hoang, Jae Woo Han, Yong Ho Choi, Kyoung Soo Jang, Gyung Ja Choi, Jin-Cheol Kim
In the search for new antibacterial agents from natural sources, we revealed that a crude methanol extract of Sapium baccatum was highly active against Ralstonia solanacearum, a causal agent of a serious disease called bacterial wilt of tomato. The bioassay-guided fractionation of this extract resulted in the isolation of seven known active compounds, including gallic acid, methyl gallate, corilagin, tercatain, chebulagic acid, chebulinic acid, and quercetin 3-O-α-L-arabinopyranoside. Their chemical structures were determined by electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28738949/blood-transfusion-and-survival-for-resected-adrenocortical-carcinoma-a-study-from-the-united-states-adrenocortical-carcinoma-group
#7
Caroline E Poorman, Lauren M Postlewait, Cecilia G Ethun, Thuy B Tran, Jason D Prescott, Timothy M Pawlik, Tracy S Wang, Jason Glenn, Ioannis Hatzaras, Rivfka Shenoy, John E Phay, Kara Keplinger, Ryan C Fields, Linda X Jin, Sharon M Weber, Ahmed Salem, Jason K Sicklick, Shady Gad, Adam C Yopp, John C Mansour, Quan-Yang Duh, Natalie Seiser, Carmen C Solorzano, Colleen M Kiernan, Konstantinos I Votanopoulos, Edward A Levine, Charles A Staley, George A Poultsides, Shishir K Maithel
Perioperative blood transfusion is associated with decreased survival in pancreatic, gastric, and liver cancer. The effect of transfusion in adrenocortical carcinoma (ACC) has not been studied. Patients with available transfusion data undergoing curative-intent resection of ACC from 1993 to 2014 at 13 institutions comprising the United States Adrenocortical Carcinoma Group were included. Factors associated with blood transfusion were determined. Primary and secondary end points were recurrence-free survival (RFS) and overall survival (OS), respectively...
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28738935/pathologic-and-prognostic-implications-of-incidental-versus-nonincidental-gallbladder-cancer-a-10-institution-study-from-the-united-states-extrahepatic-biliary-malignancy-consortium
#8
Cecilia G Ethun, Nina Le, Alexandra G Lopez-Aguiar, Timothy M Pawlik, George Poultsides, Thuy Tran, Kamran Idrees, Chelsea A Isom, Ryan C Fields, Bradley A Krasnick, Sharon M Weber, Ahmed Salem, Robert C G Martin, Charles R Scoggins, Perry Shen, Harveshp D Mogal, Carl Schmidt, Eliza Beal, Ioannis Hatzaras, Rivfka Shenoy, Maria C Russell, Shishir K Maithel
Most gallbladder cancers (GBCs) are discovered incidentally after routine cholecystectomy. The influence of timing of diagnosis on disease stage, treatment, and prognosis is not known. Patients with GBC who underwent resection at 10 institutions from 2000 to 2015 were included. Patients diagnosed incidentally (IGBC) and nonincidentally (non-IGBC) were compared. Primary outcome was overall survival (OS). Of 445 patients with GBC, 266 (60%) were IGBC and 179 (40%) were non-IGBC. Compared with IGBC, non-IGBC patients were more likely to have R2 resections (43% vs 19%; P < 0...
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28737783/fluorination-enriched-electronic-and-magnetic-properties-in-graphene-nanoribbons
#9
Duy Khanh Nguyen, Yu-Tsung Lin, Shih-Yang Lin, Yu-Huang Chiu, Ngoc Thanh Thuy Tran, Ming Fa-Lin
The feature-rich electronic and magnetic properties of fluorine-doped graphene nanoribbons are investigated by the first-principles calculations. They arise from the cooperative or competitive relations among the significant chemical bonds, finite-size quantum confinement and edge structure. There exist C-C, C-F, and F-F bonds with multi-orbital hybridizations. Fluorine adatoms can create p-type metals or concentration- and distribution-dependent semiconductors, depending on whether the π bonding is seriously suppressed by the top-site chemical bonding...
August 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28732849/preparation-and-in-vitro-evaluation-of-fgf-2-incorporated-carboxymethyl-chitosan-nanoparticles
#10
Cong-Thuan Nguyen, Thanh-Thao Nguyen, Thu-Thuy Nguyen, Phuong Phong Thi Nguyen, Anh Dzung Nguyen, Linh Thuoc Tran, Hieu Tran-Van
Fibroblast growth factor 2 (FGF-2) is a multi-functional protein involving in wound healing. However, FGF-2 is easily degradable in vivo, which limited its use for wound treatment. In this study, we investigated a drug-delivery model for FGF-2 via incorporation with biodegradable carboxylmethyl chitosan (CMCS). CMCS nanoparticles (NPs) could be synthesized by ionic gelation using CaCl2 as a crosslinking reagent with the CMCS:CaCl2 ratio of 1:0.8. Synthesized CMCS NPs had a diameter of 32.68±6.83nm, and were non-toxic at concentrations up to 2...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28732729/crystal-structures-of-an-atypical-aldehyde-dehydrogenase-having-bidirectional-oxidizing-and-reducing-activities
#11
Kyoungho Jung, Seung-Hye Hong, Ho-Phuong-Thuy Ngo, Thien-Hoang Ho, Yeh-Jin Ahn, Deok-Kun Oh, Lin-Woo Kang
Aldehyde dehydrogenases (ALDHs) are NAD(P)(+)-dependent oxidoreductases that catalyze the oxidation of a variety of aldehydes to their acid forms. In this study, we determined the crystal structures of ALDH from Bacillus cereus (BcALDH), alone, and in complex with NAD(+) and NADP(+). This enzyme can oxidize all-trans-retinal to all-trans-retinoic acid using either NAD(+) or NADP(+) with equal efficiency, and atypically, as a minor activity, can reduce all-trans-retinal to all-trans-retinol using NADPH. BcALDH accommodated the additional 2'-phosphate of NADP(+) by expanding the cofactor-binding pocket and upshifting the AMP moiety in NADP(+)...
July 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28724314/developing-combination-of-artesunate-with-paclitaxel-loaded-into-poly-d-l-lactic-co-glycolic-acid-nanoparticle-for-systemic-delivery-to-exhibit-synergic-chemotherapeutic-response
#12
Bao Ngoc Tran, Hanh Thuy Nguyen, Jong Oh Kim, Chul Soon Yong, Chien Ngoc Nguyen
OBJECTIVES: Paclitaxel (PTX) has been indicated for treatment of a variety of solid tumors, while artesunate (ART) has been reported to have the potential for use in combination chemotherapy. In this study, the combination of ART and PTX was prepared in nanoparticle to induce the synergic effect and improve therapeutic efficiency in treatment of breast cancer Methods: Dual anti-cancer agents (PTX and ART) were loaded into Poly-D,L-lactic-co-glycolic acid (PLGA) nanoparticle (NP) by solvent evaporation technique from oil in water emulsion, stabilized with Tween 80...
July 20, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28719771/prevalence-of-self-treatment-practice-and-related-factors-among-workers-aged-15-to-60-years-in-chi-linh-town-hai-duong-province-vietnam
#13
Thuy Quynh Nguyen, Thi Thu Thuy Tran, Thi Vui Le, Thi Tu Bui Quyen, Van Hung Trinh, Huu Bich Tran
Self-treatment is particularly prevalent in Vietnam. However, the prevalence of this practice among the working population is unclear. This study aims to describe the prevalence of self-treatment and related factors among workers aged 15 to 60 years in the suburban area of Chi Linh, Hai Duong, Vietnam. Secondary data of 3128 respondents was retrieved from the CHILILAB HDSS 2016 survey for analysis using logistic regression with a significance level of .05. Results show that 47.5% of respondents treated themselves at least once during one previous year...
July 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28719767/capacity-of-commune-health-stations-in-chi-linh-district-hai-duong-province-for-prevention-and-control-of-noncommunicable-diseases
#14
Nguyen Thi Thuy Nga, Bui Thi My Anh, Nguyen Nguyen Ngoc, Dang Minh Diem, Vu Duy Kien, Tran Bich Phuong, Tran Quynh Anh, Hoang Van Minh
The primary health care system in Vietnam has been playing an important role in prevention and control of diseases. This study aimed to describe the capacity of commune health stations in Chi Linh district, Hai Duong province for prevention and control of noncommunicable diseases (NCDs). A mixed-methods (quantitative and qualitative approaches) approach was applied to collect data in 20 commune health stations. The participants, including health workers, stakeholders, and patients with NCDs, were selected for the study...
July 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28719300/chikungunya-and-zika-virus-cases-detected-against-a-backdrop-of-endemic-dengue-transmission-in-vietnam
#15
Nguyen Than Ha Quyen, Duong Thi Hue Kien, Maia Rabaa, Nguyen Minh Tuan, Tran Thuy Vi, Le Van Tan, Nguyen Thanh Hung, Ha Manh Tuan, Ta Van Tram, Nguyen Le Da Ha, Han Khoi Quang, Nguyen Quoc Doanh, Nguyen Van Vinh Chau, Bridget Wills, Cameron P Simmons
Between 2010 and 2014, four chikungunya and two Zika virus infections were identified among 8,105 febrile children in southern Vietnam. Zika viruses were linked to French Polynesian strains, chikungunya to Cambodian strains. Against a backdrop of endemic dengue transmission, chikungunya and Zika present an additional arboviral disease burden in Vietnam.
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28693435/data-cleaning-and-management-protocols-for-linked-perinatal-research-data-a-good-practice-example-from-the-smoking-mums-maternal-use-of-medications-and-safety-study
#16
Duong Thuy Tran, Alys Havard, Louisa R Jorm
BACKGROUND: Data cleaning is an important quality assurance in data linkage research studies. This paper presents the data cleaning and preparation process for a large-scale cross-jurisdictional Australian study (the Smoking MUMS Study) to evaluate the utilisation and safety of smoking cessation pharmacotherapies during pregnancy. METHODS: Perinatal records for all deliveries (2003-2012) in the States of New South Wales (NSW) and Western Australia were linked to State-based data collections including hospital separation, emergency department and death data (mothers and babies) and congenital defect notifications (babies in NSW) by State-based data linkage units...
July 11, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28691856/chemical-constituents-from-the-leaves-of-pinus-dalatensis-ferr%C3%A3
#17
Nguyen Hoang Sa, Nguyen Thanh Tam, Nguyen Thi Hoang Anh, Tran Duc Quan, Dao Duc Thien, Dinh Thi Phong, Tran Van Sung, Trinh Thi Thuy
A phytochemical study of n-hexane and ethyl acetate extracts of Pinus dalatensis Ferré leaves led to the isolation of 11 compounds, including one caryolane sesquiterpenoid (1), five labdane diterpenoids (2, 3, 4, 5, 6), one serratane triterpenoid (7), one diacylated flavonoid glucoside (8), one stilbenoid (9) and two sterols (10, 11). The structural characterisation of the isolated compounds was elucidated by spectroscopic data and comparison with the literature report on the chemical constituents from Pinus dalatensis Ferré...
July 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28688956/flavonoid-glycosides-from-barringtonia-acutangula
#18
Le Thi Vien, Quach Thi Thanh Van, Tran Thi Hong Hanh, Phan Thi Thanh Huong, Nguyen Thi Kim Thuy, Nguyen The Cuong, Nguyen Hai Dang, Nguyen Van Thanh, Nguyen Xuan Cuong, Nguyen Hoai Nam, Phan Van Kiem, Chau Van Minh
Using various chromatographic separation techniques, ten flavonoid glycosides, including six new compounds namely barringosides A-F (1-6), were isolated from a methanol extract of the Barringtonia acutangula leaves. The structure elucidation was confirmed by spectroscopic analyses, including 1D and 2D NMR, and HR ESI MS. Their inhibitory effects on LPS-induced NO production in RAW264.7 cells were also evaluated. Among the isolated compounds, quercetin 3-O-β-d-(6-p-hydroxybenzoyl)galactopyranoside (9) showed significant effect with an IC50 of 20...
June 27, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28684867/combined-magnetomotive-ultrasound-pet-ct-and-mr-imaging-of-68-ga-labelled-superparamagnetic-iron-oxide-nanoparticles-in-rat-sentinel-lymph-nodes-in-vivo
#19
Maria Evertsson, Pontus Kjellman, Magnus Cinthio, Roger Andersson, Thuy A Tran, Rene In't Zandt, Gustav Grafström, Hanna Toftevall, Sarah Fredriksson, Christian Ingvar, Sven-Erik Strand, Tomas Jansson
Current methods for intra-surgical guidance to localize metastases at cancer surgery are based on radioactive tracers that cause logistical challenges. We propose the use of a novel ultrasound-based method, magnetomotive ultrasound (MMUS) imaging that employ a nanoparticle-based contrast agent that also may be used for pre-operative PET/MRI imaging. Since MMUS is radiation free, this eliminates the dependence between pre- and intra-operative imaging and the radiation exposure for the surgical staff. This study investigates a hypothetical clinical scenario of pre-operative PET imaging, combined with intra-operative MMUS imaging, implemented in a sentinel lymph node (SLN) rat model...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28683274/sulfated-polysaccharides-of-the-vietnamese-brown-alga-sargassum-aquifolium-fucales-sargassaceae
#20
Maria I Bilan, Nadezhda E Ustyuzhanina, Alexander S Shashkov, Thi Thu Thuy Thanh, Minh Ly Bui, Thi Thanh Van Tran, Van Nguyen Bui, Anatolii I Usov
A fucoidan preparation named FSA was isolated from the brown alga Sargassum aquifolium collected from the coastal waters of Vietnam. l-Fucose, d-galactose, d-mannose, d-glucuronic acid, d-xylose, and sulfate were found to be the main constituents of FSA. The preparation was fractionated by anion-exchange chromatography on DEAE-Sephacel eluted stepwise with 0.5, 1.0, 1.5, and 2.0 M NaCl to give four fractions differing in monosaccharide composition and degree of sulfation. Their NMR spectra were too complex to be completely interpreted...
June 27, 2017: Carbohydrate Research
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