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https://www.readbyqxmd.com/read/28917842/multi-scale-simulations-of-biological-systems-using-the-opep-coarse-grained-model
#1
Fabio Sterpone, Sébastien Doutreligne, Thanh Thuy Tran, Simone Melchionna, Marc Baaden, Phuong H Nguyen, Philippe Derreumaux
Biomolecules are complex machines that are optimized by evolution to properly fulfill or contribute to a variety of biochemical tasks in the cellular environment. Computer simulations based on quantum mechanics and atomistic force fields have been proven to be a powerful microscope for obtaining valuable insights into many biological, physical, and chemical processes. Many interesting phenomena involve, however, a time scale and a number of degrees of freedom, notably if crowding is considered, that cannot be explored at an atomistic resolution...
September 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28913712/surgical-site-infection-is-associated-with-tumor-recurrence-in-patients-with-extrahepatic-biliary-malignancies
#2
Stefan Buettner, Cecilia G Ethun, George Poultsides, Thuy Tran, Kamran Idrees, Chelsea A Isom, Matthew Weiss, Ryan C Fields, Bradley 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, Bas Groot Koerkamp, Shishir K Maithel, Timothy M Pawlik
BACKGROUND: Surgical site infections (SSI) are one of the most common complications after hepato-pancreato-biliary surgery. Infectious complications may lead to an associated immune-modulatory effect that inhibits the body's response to cancer surveillance. We sought to define the impact of SSI on long-term prognosis of patients undergoing surgical resection of extrahepatic biliary malignancies (EHBM). METHODS: Patients undergoing surgery for EHBM between 2000 and 2014 were identified using a large, multi-center, national cohort dataset...
September 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28904976/household-financial-burden-and-poverty-impacts-of-cancer-treatment-in-vietnam
#3
Van Minh Hoang, Cam Phuong Pham, Quynh Mai Vu, Thuy Trang Ngo, Dinh Ha Tran, Dieu Bui, Xuan Dung Pham, Dang Khoa Tran, Trong Khoa Mai
PURPOSE: This paper aims to analyze the household financial burden and poverty impacts of cancer treatment in Vietnam. METHODS: Under the "ASEAN CosTs in ONcology" study design, three major specialized cancer hospitals were employed to assemble the Vietnamese data. Factors of socioeconomic, direct, and indirect costs of healthcare were collected prospectively through both individual interviews and hospital financial records. RESULTS: The rates of catastrophic expenditure based on the cut-off points of 20%, 30%, 40%, and 50% of household's income were 82...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28890310/evaluating-the-american-college-of-surgeons-national-surgical-quality-improvement-project-risk-calculator-results-from-the-u-s-extrahepatic-biliary-malignancy-consortium
#4
Eliza W Beal, Ezra Lyon, Joe Kearney, Lai Wei, Cecilia G Ethun, Sylvester M Black, Mary Dillhoff, Ahmed Salem, Sharon M Weber, Thuy B Tran, George Poultsides, Rivfka Shenoy, Ioannis Hatzaras, Bradley Krasnick, Ryan C Fields, Stefan Buttner, Charles R Scoggins, Robert C G Martin, Chelsea A Isom, Kamron Idrees, Harveshp D Mogal, Perry Shen, Shishir K Maithel, Timothy M Pawlik, Carl R Schmidt
BACKGROUND: The objective of this study is to evaluate use of the American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) online risk calculator for estimating common outcomes after operations for gallbladder cancer and extrahepatic cholangiocarcinoma. METHODS: Subjects from the United States Extrahepatic Biliary Malignancy Consortium (USE-BMC) who underwent operation between January 1, 2000 and December 31, 2014 at 10 academic medical centers were included in this study...
September 7, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28879203/a-stakeholder-survey-on-live-bird-market-closures-policy-for-controlling-highly-pathogenic-avian-influenza-in-vietnam
#5
Thi Thanh Thuy Nguyen, Lyle Fearnley, Xuan Tung Dinh, Thi Tram Anh Tran, Trong Tung Tran, Van Trong Nguyen, Damian Tago, Pawin Padungtod, Scott H Newman, Astrid Tripodi
Extensive research in Vietnam and elsewhere has shown that live bird markets (LBMs) play a significant role in the ecology and zoonotic transmission of avian influenzas (AIs) including H5N1 and H7N9. Vietnam has a large number of LBMs reflecting the consumer preferences for live poultry. Under pressure to mitigate risks for H7N9 and other zoonotic AIs, Vietnam is considering, among other mitigation measures, temporary closures of LBMs as a policy to reduce risk of AI outbreaks. However, the efficacy of market closure is debated, particularly because little is known about how poultry traders may react, and whether trading may emerge outside formal marketplaces...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28854638/whole-genome-sequencing-reveals-the-islands-of-novel-polymorphisms-in-two-native-aromatic-japonica-rice-landraces-from-vietnam
#6
Khuat Huu Trung, Truong Khoa Nguyen, Hoang Bao Truc Khuat, Thuy Diep Nguyen, Tran Dang Khanh, Tran Dang Xuan, Xuan-Hung Nguyen
Elucidation of the rice genome will not only broaden our understanding of genetic characterization of the agronomic characteristics but also facilitate the rice genetic improvement through marker assisted breeding. However, the genome resources of aromatic rice varieties are largely unexploited. Therefore, the whole genome of two elite aromatic traditional japonica rice landraces in North Vietnam, Tam Xoan Bac Ninh (TXBN), and Tam Xoan Hai Hau (TXHH), was sequenced to identify their genome-wide polymorphisms...
June 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28852711/enterovirus-d68-in-viet-nam-2009-2015
#7
Nguyen Thi Han Ny, Nguyen To Anh, Vu Thi Ty Hang, Lam Anh Nguyet, Tran Tan Thanh, Do Quang Ha, Ngo Ngoc Quang Minh, Do Lien Anh Ha, Angela McBride, Ha Manh Tuan, Stephen Baker, Pham Thi Thanh Tam, Tran My Phuc, Dang Thao Huong, Tran Quoc Loi, Nguyen Tran Anh Vu, Nguyen Van Hung, Tran Thi Thuy Minh, Nguyen Van Xang, Nguyen Dong, Ho Dang Trung Nghia, Nguyen Van Vinh Chau, Guy Thwaites, H Rogier van Doorn, Catherine Anscombe, Tan Le Van
BACKGROUND: Since 1962, enterovirus D68 (EV-D68) has been implicated in multiple outbreaks and sporadic cases of respiratory infection worldwide, but especially in the USA and Europe with an increasing frequency between 2010 and 2014. We describe the detection, associated clinical features and molecular characterization of EV-D68 in central and southern Viet Nam between 2009 and 2015. METHODS: Enterovirus/rhinovirus PCR positive respiratory or CSF samples taken from children and adults with respiratory/central nervous system infections in Viet Nam were tested by an EV-D68 specific PCR...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28845253/a37%C3%A2-hiv-drug-resistance-monitoring-in-children-receiving-first-line-antiretroviral-therapy-at-two-pediatric-hospitals-in-ho-chi-minh-city
#8
Anh Q Luong, Ton Tran, Khanh Thu H Hoang, Ngoc Thao T Do, Thinh X Vu, Khanh H Truong, Quy T Du, Kim Thoa P Le, Viet C Do, An T Vu, Thanh Thuy T Le, Kim Chi T Nguyen, Binh K Nguyen, Hien T Bui, Xuan Lien T Truong
No abstract text is available yet for this article.
March 2017: Virus Evolution
https://www.readbyqxmd.com/read/28776220/nanostructured-lipid-carriers-to-enhance-transdermal-delivery-and-efficacy-of-diclofenac
#9
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
#10
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 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
#11
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
#12
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
#13
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
#14
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
#15
MULTICENTER STUDY
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
#16
MULTICENTER STUDY
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
#17
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
#18
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
#19
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
#20
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
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