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Thuy Tran

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https://www.readbyqxmd.com/read/29148428/-sup-135-sup-la-as-an-auger-electron-emitter-for-targeted-internal-radiotherapy
#1
Jesper Fonslet, Boon Quan Lee, Thuy A Tran, Mattia Siragusa, Mikael Jensen, Tibor Kibedi, Andrew E Stuchbery, Gregory W Severin
<b>Introduction:</b> <sup>135</sup>La has favorable nuclear and chemical properties for Auger-based targeted internal radiotherapy. Here we present detailed investigations of the production, emissions, imaging characteristics, and dosimetry related to <sup>135</sup>La therapy. <b>Methods and Results:</b> <sup>135</sup>La was produced by 16.5 MeV proton irradiation of metallic <sup>nat</sup>Ba on a medical cyclotron, and was isolated and purified by trap-and-release on weak cation-exchange resin...
November 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29128846/tissue-adhesive-fk506-loaded-polymeric-nanoparticles-for-multi-layered-nano-shielding-of-pancreatic-islets-to-enhance-xenograft-survival-in-a-diabetic-mouse-model
#2
Tung Thanh Pham, Tiep Tien Nguyen, Shiva Pathak, Shobha Regmi, Hanh Thuy Nguyen, Tuan Hiep Tran, Chul Soon Yong, Jong Oh Kim, Pil-Hoon Park, Min Hui Park, Young Kyung Bae, Jeong Uk Choi, Youngro Byun, Cheol-Hee Ahn, Simmyung Yook, Jee-Heon Jeong
This study aims to develop a novel surface modification technology to prolong the survival time of pancreatic islets in a xenogenic transplantation model, using 3,4-dihydroxyphenethylamine (DOPA) conjugated poly(lactide-co-glycolide)-poly(ethylene glycol) (PLGA-PEG) nanoparticles (DOPA-NPs) carrying immunosuppressant FK506 (FK506/DOPA-NPs). The functionalized DOPA-NPs formed a versatile coating layer for antigen camouflage without interfering the viability and functionality of islets. The coating layer effectively preserved the morphology and viability of islets in a co-culture condition with xenogenic lymphocytes for 7 days...
November 1, 2017: Biomaterials
https://www.readbyqxmd.com/read/29110709/the-prevalence-incidence-and-prevention-of-plasmodium-falciparum-infections-in-forest-rangers-in-bu-gia-map-national-park-binh-phuoc-province-vietnam-a-pilot-study
#3
Do Hung Son, Nguyen Thuy-Nhien, Lorenz von Seidlein, Truong Le Phuc-Nhi, Ngo Thi Phu, Nguyen Thi Kim Tuyen, Nguyen Huyen Tran, Nguyen Van Dung, Bui Van Quan, Nicholas P J Day, Arjen M Dondorp, Nicholas J White, Guy E Thwaites, Tran Tinh Hien
BACKGROUND: Prophylaxis for high-risk populations, such as forest workers, could be one component for malaria elimination in the Greater Mekong Sub-region. A study was conducted to assess the malaria incidence in forest rangers and the feasibility of malaria prophylaxis for rangers sleeping in forest camps. METHODS: Forest rangers deployed in the Bu Gia Map National Park, Vietnam were invited to participate in the study. Plasmodium infections were cleared using presumptive treatment, irrespective of malaria status, with a 3-day course dihydroartemisinin/piperaquine (DP) and a 14-day course of primaquine...
November 6, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29101740/low-molecular-weight-compounds-with-anticoagulant-activity-from-the-scorpion-heterometrus-laoticus-venom
#4
Tran Vu Thien, Hoang Ngoc Anh, Nguyen Thi Thuy Trang, Phung Van Trung, Nguyen Cuu Khoa, A V Osipov, P V Dubovskii, I A Ivanov, A S Arseniev, V I Tsetlin, Yu N Utkin
Low-molecular-weight compounds with anticoagulant activity were isolated from the scorpion Heterometrus laoticus venom. The determination of the structure of the isolated compounds by nuclear magnetic resonance and mass spectrometry showed that one of the isolated compounds is adenosine, and the other two are dipeptides leucyl-tryptophan and isoleucyl-tryptophan. The anticoagulant properties of adenosine, which is an inhibitor of platelet aggregation, is well known, but its presence in scorpion venom is shown for the first time...
September 2017: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29072627/anticoagulant-activity-of-low-molecular-weight-compounds-from-heterometrus-laoticus-scorpion-venom
#5
Thien Vu Tran, Anh Ngoc Hoang, Trang Thuy Thi Nguyen, Trung Van Phung, Khoa Cuu Nguyen, Alexey V Osipov, Igor A Ivanov, Victor I Tsetlin, Yuri N Utkin
Scorpion venoms are complex polypeptide mixtures, the ion channel blockers and antimicrobial peptides being the best studied components. The coagulopathic properties of scorpion venoms are poorly studied and the data about substances exhibiting these properties are very limited. During research on the Heterometrus laoticus scorpion venom, we have isolated low-molecular compounds with anticoagulant activity. Determination of their structure has shown that one of them is adenosine, and two others are dipeptides LeuTrp and IleTrp...
October 26, 2017: Toxins
https://www.readbyqxmd.com/read/29064885/transplantation-versus-resection-for-hilar-cholangiocarcinoma-an-argument-for-shifting-treatment-paradigms-for-resectable-disease
#6
Cecilia G Ethun, Alexandra G Lopez-Aguiar, Douglas J Anderson, Andrew B Adams, Ryan C Fields, Maria B Doyle, William C Chapman, Bradley A Krasnick, Sharon M Weber, Joshua D Mezrich, Ahmed Salem, Timothy M Pawlik, George Poultsides, Thuy B Tran, Kamran Idrees, Chelsea A Isom, Robert C G Martin, Charles R Scoggins, Perry Shen, Harveshp D Mogal, Carl Schmidt, Eliza Beal, Ioannis Hatzaras, Rivfka Shenoy, Kenneth Cardona, Shishir K Maithel
OBJECTIVE: To investigate the influence of type of surgery (transplant vs resection) on overall survival (OS) in patients with hilar cholangiocarcinoma (H-CCA). BACKGROUND: Outcomes after resection for H-CCA are poor, yet transplantation is currently only reserved for well-selected patients with unresectable disease. METHODS: All patients with H-CCA who underwent resection from 2000 to 2015 at 10 institutions were included. Three institutions additionally had active H-CCA transplant protocols with similar selection criteria over similar time periods...
October 23, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/29050342/role-of-the-cyp3a4-mediated-11-12-epoxyeicosatrienoic-acid-pathway-in-the-development-of-tamoxifen-resistant-breast-cancer
#7
Nguyen Thi Thuy Phuong, Ji Won Kim, Jung-Ae Kim, Jang Su Jeon, Ji-Yoon Lee, Wen Jun Xu, Jin Won Yang, Sang Kyum Kim, Keon Wook Kang
Epoxyeicosatrienoic acid (EET) production via cytochrome P450 (CYP) epoxygenases closely correlates with the progression of breast cancer. However, its role in the development of chemoresistant breast cancers has yet to be elucidated. Here, we found that CYP3A4 expression and its epoxy-product, 11,12-epoxyeicosatrienoic acid (11,12-EET) was enhanced in tamoxifen (TAM)-resistant MCF-7 (TAMR-MCF-7) breast cancer cells compared to control MCF-7 cells. Treatment of TAMR-MCF-7 cells with ketoconazole and azamulin (selective CYP3A4 inhibitors) or 14,15-epoxyeicosa-5(Z)-enoic acid (14,15-EEZE, an EET antagonist) inhibited cellular proliferation and recovered the sensitivity to 4-hydroxytamoxifen...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29032387/an-assessment-of-heavy-metal-contamination-on-the-surface-sediment-of-seagrass-beds-at-the-khanh-hoa-coast-vietnam
#8
Xuan-Vy Nguyen, Minh-Hue Tran, Trong-Dung Le, Jutta Papenbrock
Seagrasses beds are vulnerable ecosystems. Human-induced disturbances, including heavy metal pollution, cause losses in seagrass beds. Assessment of the heavy metal concentration in seagrass meadows is an urgent need in order to protect and sustain these ecosystems. The concentration of eight trace metals in the surface sediment was observed from six seagrass beds at Khanh Hoa's coast, Vietnam. Three pollution indices and statistical analysis were used to evaluate the levels of contamination with these elements...
October 14, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29029149/no-clinical-benefit-of-empirical-antimicrobial-therapy-for-pediatric-diarrhea-in-a-high-usage-high-resistance-setting
#9
Vu Thuy Duong, Ha Thanh Tuyen, Pham Van Minh, James I Campbell, Hoang Le Phuc, Tran Do Hoang Nhu, Le Thi Phuong Tu, Tran Thi Hong Chau, Le Thi Quynh Nhi, Nguyen Thanh Hung, Nguyen Minh Ngoc, Nguyen Thi Thanh Huong, Lu Lan Vi, Corinne N Thompson, Guy E Thwaites, Ruklanthi de Alwis, Stephen Baker
Background: Pediatric diarrheal disease presents a major public health burden in low-middle income countries. The clinical benefits of empirical antimicrobial treatment for diarrhea are unclear in settings that lack reliable diagnostics and have high antimicrobial resistance (AMR). Methods: We conducted a prospective multi-center cross-sectional study of pediatric patients hospitalized with diarrhea containing blood and/or mucus in Ho Chi Minh City, Vietnam. Clinical parameters, including disease outcome and treatment, were measured...
September 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29029128/evolution-and-spatio-temporal-dynamics-of-enterovirus-a71-subgenogroups-in-vietnam
#10
Nguyen Thi Thanh Thao, Celeste Donato, Vu Thi Huyen Trang, Nguyen Trung Kien, Ph M Mai Thuy Trang, Tran Quoc Khanh, Dang Thi Nguyet, October Sessions, Hoang Quoc Cuong, Phan Trong Lan, Vu Thi Que Huong, H Rogier van Doorn, Vijaykrishna Dhanasekaran
Background: Enterovirus A71 (EV-A71) is the major cause of severe hand, foot and mouth disease and viral encephalitis in children across the Asia-Pacific region, including in Vietnam which has experienced a high burden of disease in recent years. Multiple subgenogroups (C1, C4, C5 and B5) concurrently circulate in the region with a large variation in epidemic severity. The relative differences in their evolution and epidemiology were examined within Vietnam and globally. Methods: A total of 752 VP1 gene sequences were analysed (413 generated in this study combined with 339 obtained from GenBank), collected from patients in 36 provinces in Vietnam during 2003-2013 along with epidemiological metadata...
September 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29029055/prognostic-models-for-9-month-mortality-in-tuberculous-meningitis
#11
Le Thi Phuong Thao, A Dorothee Heemskerk, Ronald B Geskus, Nguyen Thi Hoang Mai, Dang Thi Minh Ha, Tran Thi Hong Chau, Nguyen Hoan Phu, Nguyen Van Vinh Chau, Maxine Caws, Nguyen Huu Lan, Do Dang Anh Thu, Nguyen Thuy Thuong Thuong, Jeremy Day, Jeremy J Farrar, M Estee Torok, Nguyen Duc Bang, Guy E Thwaites, Marcel Wolbers
Background: Tuberculous meningitis (TBM) is the most severe form of extra-pulmonary tuberculosis. We developed and validated prognostic models for 9-month mortality in HIV-uninfected and HIV-infected adults with TBM. Methods: We included 1699 subjects from four randomized clinical trials and one prospective observational study conducted at two major referral hospitals in Southern Vietnam from 2001-2015. Modelling was based on multivariable Cox proportional hazards regression...
September 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29027133/combination-of-a-chemopreventive-agent-and-paclitaxel-in-cd44-targeted-hybrid-nanoparticles-for-breast-cancer-treatment
#12
Bao Ngoc Tran, Hanh Thuy Nguyen, Jong Oh Kim, Chul Soon Yong, Chien Ngoc Nguyen
The CD44 receptor, which is upregulated in many cancer cells, provides a selective cellular surface for targeted drug delivery systems. We developed a hybrid nanocarrier for the CD44-targeted delivery of ibuprofen (IBU) and paclitaxel (PTX). The solid lipid nanoparticles (SLNs) were prepared by a hot-melt oil/water emulsion technique and then coated with hyaluronic acid (HA) by electrostatic interactions. The final SLN were spherical with a hydrodynamic diameter (Z) of 72.16 ± 2.9 nm, polydispersity index (PDI) of 0...
October 12, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29018582/effect-of-low-dose-versus-higher-dose-antenatal-iron-supplementation-on-child-health-outcomes-at-36-months-of-age-in-viet-nam-longitudinal-follow-up-of-a-cluster-randomised-controlled-trial
#13
Sarah Hanieh, Tran T Ha, Julie A Simpson, Sabine Braat, Tran T Thuy, Thach D Tran, Janet King, Tran Tuan, Jane Fisher, Beverley-Ann Biggs
INTRODUCTION: Intermittent iron-folic acid supplementation (IFA) is currently recommended for pregnant women in populations where anaemia prevalence among pregnant women is <20% or if daily iron is not acceptable. The effect of providing lower doses of antenatal elemental iron through intermittent regimes on longer-term health outcomes in childhood is unclear. METHODS: A prospective cohort study conducted between May 2012 and May 2014 in Viet Nam among children of 36 months of age, born to women previously enrolled in a cluster randomised controlled trial of antenatal micronutrient supplementation (daily IFA (60 mg elemental iron) vs twice-weekly IFA (60 mg elemental iron) vs twice-weekly multiple micronutrient (MMN) supplementation (60 mg elemental iron))...
2017: BMJ Global Health
https://www.readbyqxmd.com/read/28986752/the-effects-of-travel-burden-on-outcomes-after-resection-of-extrahepatic-biliary-malignancies-results-from-the-us-extrahepatic-biliary-consortium
#14
Sean C O'Connor, Harveshp Mogal, Gregory Russell, Cecilia Ethun, Ryan C Fields, Linda Jin, Ioannis Hatzaras, Gerardo Vitiello, Kamran Idrees, Chelsea A Isom, Robert Martin, Charles Scoggins, Timothy M Pawlik, Carl Schmidt, George Poultsides, Thuy B Tran, Sharon Weber, Ahmed Salem, Shishir Maithel, Perry Shen
BACKGROUND: Surgical resection of extrahepatic biliary malignancies has been increasingly centralized at high-volume tertiary care centers. While this has improved outcomes overall, increased travel burden has been associated with worse survival for many other malignancies. We hypothesized that longer travel distances are associated with worse outcomes for these patients as well. STUDY DESIGN: Data was analyzed from the US Extrahepatic Biliary Consortium database, which retrospectively reviewed patients who received resection of extrahepatic biliary malignancies at 10 high-volume centers...
October 4, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28942674/two-new-guaiane-sesquiterpene-lactones-from-the-aerial-parts-of-artemisia-vulgaris
#15
Tran Thi Hong Hanh, Le Thi Thuy Hang, Phan Thi Thanh Huong, Nguyen Quang Trung, Tran Van Cuong, Nguyen Van Thanh, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh
Two new guaiane sesquiterpene lactones, vulgarolides A and B (1 and 2), were isolated from Artemisia vulgaris aerial parts using various chromatographic separations. The structure elucidation was performed by combination of spectroscopic experiments including 1D and 2D NMR, HR ESI MS, and CD. Their in vitro cytotoxic activities against five human cancer cell lines were also evaluated using SRB method.
September 25, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28934457/highly-pathogenic-avian-influenza-a-h5n1-viruses-at-the-animal-human-interface-in-vietnam-2003-2010
#16
Adrian Creanga, Nguyen Le Khanh Hang, Vuong Duc Cuong, Ha T Nguyen, Hoang Vu Mai Phuong, Le Thi Thanh, Nguyen Co Thach, Pham Thi Hien, Nguyen Tung, Yunho Jang, Amanda Balish, Nguyen Hoang Dang, Mai Thuy Duong, Ngo Thu Huong, Do Ngoc Hoa, Nguyen Dang Tho, Alexander Klimov, Bryan K Kapella, Larisa Gubareva, James C Kile, Nguyen Tran Hien, Le Quynh Mai, C Todd Davis
Mutation and reassortment of highly pathogenic avian influenza A(H5N1) viruses at the animal-human interface remain a major concern for emergence of viruses with pandemic potential. To understand the relationship of H5N1 viruses circulating in poultry and those isolated from humans, comprehensive phylogenetic and molecular analyses of viruses collected from both hosts in Vietnam between 2003 and 2010 were performed. We examined the temporal and spatial distribution of human cases relative to H5N1 poultry outbreaks and characterized the genetic lineages and amino acid substitutions in each gene segment identified in humans relative to closely related viruses from avian hosts...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28927740/comparative-evaluation-of-iodine-125-radioactive-seed-localization-and-wire-localization-for-resection-of-breast-lesions
#17
COMPARATIVE STUDY
Vi Thuy Tran, Julie David, Erica Patocskai, Mathieu Zummo-Soucy, Rami Younan, Lucie Lalonde, Maude Labelle, Mona El Khoury, André Robidoux, Isabelle Trop
PURPOSE: Radioactive seed localization (RSL) uses a titanium seed labeled with iodine-125 energy for surgery of nonpalpable breast lesions. RSL facilitates radiology-surgery scheduling and allows for improved oncoplasty compared with wire localization (WL). The purpose of this work was to compare the 2 techniques. METHODS: We performed a retrospective study of all breast lesions operated with RSL between February 2013 and March 2015 at our university institution, and compared with an equivalent number of surgeries performed with a single WL...
November 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28917842/multi-scale-simulations-of-biological-systems-using-the-opep-coarse-grained-model
#18
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
#19
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...
November 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
#20
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
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