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https://www.readbyqxmd.com/read/29442867/effects-of-different-sacrificial-agents-and-hydrogen-production-from-wastewater-by-pt-graphene-tio%C3%A2
#1
Nhat-Thien Nguyen, Dan-Dan Zheng, Shiao-Shing Chen, Chang-Tang Chang, Chih-Ming Ma, Nguyen-Cong Nguyen, Hau-Thi Nguyen, Shui-Shu Hsiao, Sy-Yuan Kang
The Pt and graphene (GN) were used to modify TiO2 nanoparticles. GN/TiO2, Pt-TiO2, Pt-GN/TiO2 were successfully synthesized by modified Hummers' method, alcohol thermal and photodeposition method, respectively. The characterizations of the synthesized catalysts by different characterization techniques, including N2 adsorption-desorption isotherm, fourier transform infrared spectroscopy (FTIR), inductively coupled plasma (ICP) technique and element analyzer (EA), respectively. In addition, different sacrificial agents (methanol, ethanol, n-propanol, i-propanol, n-butanol, ethylene glycol, 1,2-propanediol, 1,3-propanediol and glycerol) have been investigated...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442833/hexamethyldisilazane-removal-with-mesoporous-materials-prepared-from-calcium-fluoride-sludge
#2
Ching-Yang Kao, Min-Fa Lin, Nhat-Thien Nguyen, Hsiao-Hsin Tsai, Luh-Maan Chang, Po-Han Chen, Chang-Tang Chang
A large amount of calcium fluoride sludge is generated by the semiconductor industry every year. It also requires a high amount of fuel consumption using rotor concentrators and thermal oxidizers to treat VOCs. The mesoporous adsorbent prepared by calcium fluoride sludge was used for VOCs treatment. The semiconductor industry employs HMDS to promote the adhesion of photo-resistant material to oxide(s) due to the formation of silicon dioxide, which blocks porous adsorbents. The adsorption of HMDS (Hexamethyldisiloxane) was tested with mesoporous silica materials synthesized from calcium fluoride (CF-MCM)...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29435398/spaced-titania-nanotube-arrays-allow-the-construction-of-an-efficient-n-doped-hierarchical-structure-for-visible-light-harvesting
#3
Nhat Truong Nguyen, Selda Ozkan, Ondrej Tomanec, Radek Zboril, Patrik Schmuki
Regularly spaced TiO2 nanotubes were prepared by anodizing a titanium substrate in triethylene glycol electrolyte at elevated temperature. In comparison to conventional TiO2 nanotubes, spaced nanotubes possess an adjustable spacing between the individual nanotubes; this allows for controlled buildup of a hierarchical nanoparticle-on-nanotube structure. Here, we use this principle for layer-by-layer decoration of the tubes with TiO2 nanoparticles. The hierarchical structure after N doping and NH3 treatment at 450 °C shows a significant enhancement of visible-light absorption, although it only carries a low doping concentration of nitrogen...
February 2018: ChemistryOpen
https://www.readbyqxmd.com/read/29427525/frailty-versus-stopping-elderly-accidents-deaths-and-injuries-initiative-fall-risk-score-ability-to-predict-future-falls
#4
Rebecca S Crow, Matthew C Lohman, Dawna Pidgeon, Martha L Bruce, Stephen J Bartels, John A Batsis
OBJECTIVES: To compare the ability of frailty status to predict fall risk with that of community fall risk screening tools. DESIGN: Analysis of cross-sectional and longitudinal data from NHATS. SETTING: National Health and Aging Trend Study (NHATS) 2011-2015. PARTICIPANTS: Individuals aged 65 and older (N = 7,392). MEASUREMENTS: Fall risk was defined according to the Stopping Elderly Accidents, Deaths and Injuries (STEADI) initiative...
February 10, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29423674/intravenous-infusion-of-human-adipose-tissue-derived-mesenchymal-stem-cells-to-treat-type-1-diabetic-mellitus-in-mice-an-evaluation-of-grafted-cell-doses
#5
Loan Thi-Tung Dang, Anh Nguyen-Tu Bui, Cong Le-Thanh Nguyen, Nhat Chau Truong, Anh Thi-Van Bui, Ngoc Phan Kim, Kiet Dinh Truong, Phuc Van Pham
Mesenchymal stem cell (MSC) transplantation is a novel treatment for diabetes mellitus, especially type 1 diabetes. Many recent publications have demonstrated the efficacy of MSC transplantation on reducing blood glucose and increasing insulin production in both preclinical and clinical trials. However, the investigation of grafted cell doses has been lacking. Therefore, this study aimed to evaluate the different doses of MSCs on treatment of type 1 diabetes in mouse models. MSCs were isolated and expanded from human adipose tissue...
February 9, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29409010/reactive-species-balance-via-gtp-cyclohydrolase-i-regulates-glioblastoma-growth-and-tumor-initiating-cell-maintenance
#6
Anh Nhat Tran, Kiera Walker, David G Harrison, Wei Chen, James Mobley, Lauren Hocevar, James R Hackney, Randee S Sedaka, Jennifer S Pollock, Matthew S Goldberg, Dolores Hambardzumyan, Sara J Cooper, Yancey Gillespie, Anita B Hjelmeland
Background: Depending on the level, differentiation state, and tumor stage, reactive nitrogen and oxygen species inhibit or increase cancer growth and tumor initiating cell maintenance. The rate limiting enzyme in a pathway that can regulate reactive species production but has not been thoroughly investigated in glioblastoma (GBM; grade IV astrocytoma) is GTP cyclohydrolase 1 (GCH1). We sought to define the role of GCH1 in the regulation of GBM growth and brain tumor initiating cell maintenance...
February 2, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29391126/research-of-novel-anticancer-agents-targeting-arginase-inhibition
#7
REVIEW
Thanh-Nhat Pham, Bertrand Liagre, Corine Girard-Thernier, Céline Demougeot
Arginase plays an important part in l-arginine metabolism. This metalloenzyme also regulates polyamine biosynthesis, nitric oxide production and the T-cell-mediated immune response, which are all involved in the growth and control of cancer. Research over the past decades has reported arginase as an attractive target for cancer treatment, and inhibition of arginase could be a promising strategy for cancer therapy. Herein, we present the available data on the role of arginase in cancer development. The principal synthetic and natural arginase inhibitors are outlined and followed by their mechanism of action...
January 29, 2018: Drug Discovery Today
https://www.readbyqxmd.com/read/29386518/in-vivo-photoacoustic-monitoring-using-700-nm-region-raman-source-for-targeting-prussian-blue-nanoparticles-in-mouse-tumor-model
#8
Nhat Quang Bui, Soon-Woo Cho, Madhappan Santha Moorthy, Sang Min Park, Zhonglie Piao, Seung Yun Nam, Hyun Wook Kang, Chang-Seok Kim, Junghwan Oh
Photoacoustic imaging (PAI) is a noninvasive imaging tool to visualize optical absorbing contrast agents. Due to high ultrasonic resolution and superior optical sensitivity, PAI can be used to monitor nanoparticle-mediated cancer therapy. The current study synthesized Food and Drug Administration-approved Prussian blue (PB) in the form of nanoparticles (NPs) with the peak absorption at 712 nm for photoacoustically imaging tumor-bearing mouse models. To monitor PB NPs from the background tissue in vivo, we also developed a new 700-nm-region stimulated Raman scattering (SRS) source (pulse energy up to 200 nJ and repetition rate up to 50 kHz) and implemented optical-resolution photoacoustic microscopy (OR-PAM)...
January 31, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29378228/the-pro-tumorigenic-effects-of-metabolic-alterations-in-glioblastoma-including-brain-tumor-initiating-cells
#9
REVIEW
Catherine J Libby, Anh Nhat Tran, Sarah E Scott, Corinne Griguer, Anita B Hjelmeland
De-regulated cellular energetics is an emerging hallmark of cancer with alterations to glycolysis, oxidative phosphorylation, the pentose phosphate pathway, lipid oxidation and synthesis and amino acid metabolism. Understanding and targeting of metabolic reprogramming in cancers may yield new treatment options, but metabolic heterogeneity and plasticity complicate this strategy. One highly heterogeneous cancer for which current treatments ultimately fail is the deadly brain tumor glioblastoma. Therapeutic resistance, within glioblastoma and other solid tumors, is thought to be linked to subsets of tumor initiating cells, also known as cancer stem cells...
January 26, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29377843/reply
#10
Viet Nhat Hung Le, Felix Bock, Claus Cursiefen
No abstract text is available yet for this article.
January 25, 2018: Cornea
https://www.readbyqxmd.com/read/29365026/association-of-heritable-cognitive-ability-and-psychopathology-with-white-matter-properties-in-children-and-adolescents
#11
Dag Alnæs, Tobias Kaufmann, Nhat Trung Doan, Aldo Córdova-Palomera, Yunpeng Wang, Francesco Bettella, Torgeir Moberget, Ole A Andreassen, Lars T Westlye
Importance: Many mental disorders emerge during adolescence, which may reflect a cost of the potential for brain plasticity offered during this period. Brain dysconnectivity has been proposed as a common factor across diagnostic categories. Objective: To investigate the hypothesis that brain dysconnectivity is a transdiagnostic phenotype in adolescence with increased susceptibility and symptoms of psychiatric disease. Design, Setting, and Participants: We investigated clinical symptoms as well as cognitive function in 6487 individuals aged 8 to 21 years from November 1, 2009, to November 30, 2011, in the Philadelphia Neurodevelopmental Cohort and analyzed diffusion magnetic resonance imaging brain scans for 748 of the participants...
January 24, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29329463/ginsenoside-rh1-a-systematic-review-of-its-pharmacological-properties
#12
Dao Ngoc Hien Tam, Duy Hieu Truong, Thi Thanh Hoa Nguyen, Le Nhat Quynh, Linh Tran, Hong Duong Nguyen, Bahaa Eldin Shamandy, Thi Minh Huong Le, Dang Khoa Tran, Dina Sayed, Van Vinh Vu, Shusaku Mizukami, Kenji Hirayama, Nguyen Tien Huy
Ginsenoside Rh1 is one of major bioactive compounds extracted from red ginseng, which has been increasingly used for enhancing cognition and physical health worldwide. The objective of this study was to review the pharmacological effects of ginsenoside Rh1 in a systematic manner. We performed searches on eight electronic databases including MEDLINE (Pubmed), Scopus, Google Scholar, POPLINE, Global Health Library, Virtual Health Library, the System for Information on Grey Literature in Europe, and the New York Academy of Medicine Grey Literature Report to select the original research publications reporting the biological and pharmacological effects of ginsenoside Rh1 from in vitro and in vivo studies regardless of publication language and study design...
January 12, 2018: Planta Medica
https://www.readbyqxmd.com/read/29326332/the-impact-of-digital-health-technologies-on-tuberculosis-treatment-a-systematic-review
#13
Brian Kermu Ngwatu, Ntwali Placide Nsengiyumva, Olivia Oxlade, Benjamin Mappin-Kasirer, Nhat Linh Nguyen, Ernesto Jaramillo, Dennis Falzon, Kevin Schwartzman
Digital technologies are increasingly harnessed to support treatment of persons with tuberculosis (TB). Since in-person directly observed treatment (DOT) can be resource intensive and challenging to implement, these technologies may have the potential to improve adherence and clinical outcomes. We reviewed the effect of these technologies on TB treatment adherence and patient outcomes.We searched several bibliographical databases for studies reporting the effect of digital interventions, including short message service (SMS), video-observed therapy (VOT) and medication monitors (MMs), to support treatment for active TB...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29323212/multimodal-tumor-homing-chitosan-oligosaccharide-coated-biocompatible-palladium-nanoparticles-for-photo-based-imaging-and-therapy
#14
Subramaniyan Bharathiraja, Nhat Quang Bui, Panchanathan Manivasagan, Madhappan Santha Moorthy, Sudip Mondal, Hansu Seo, Nguyen Thanh Phuoc, Thi Tuong Vy Phan, Hyehyun Kim, Kang Dae Lee, Junghwan Oh
Palladium, a near-infrared plasmonic material has been recognized for its use in photothermal therapy as an alternative to gold nanomaterials. However, its potential application has not been explored well in biomedical applications. In the present study, palladium nanoparticles were synthesized and the surface of the particles was successfully modified with chitosan oligosaccharide (COS), which improved the biocompatibility of the particles. More importantly, the particles were functionalized with RGD peptide, which improves particle accumulation in MDA-MB-231 breast cancer cells and results in enhanced photothermal therapeutic effects under an 808-nm laser...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321001/dengue-virus-infection-enhancement-activity-in-neutralizing-antibodies-of-healthy-adults-before-dengue-season-as-determined-by-using-fc%C3%AE-r-expressing-cells
#15
Minh Huong Phu Ly, Meng Ling Moi, Thi Bich Hau Vu, Mya Myat Ngwe Tun, Todd Saunders, Cam Nhat Nguyen, Anh Kieu Thi Nguyen, Hung Manh Nguyen, Than Huu Dao, Do Quyen Pham, Thi Thu Thuy Nguyen, Thi Quynh Mai Le, Futoshi Hasebe, Kouichi Morita
BACKGROUND: Antibodies are critical responses to protect the host from dengue virus(DENV) infection. Antibodies target DENV by two pathologic mechanisms: virus neutralization and infection enhancement. In dengue patients, the absence of neutralizing activity in the presence of FcγR implies that infection-enhancing activity hampers the neutralizing activity of antibodies, which could potentially lead to symptomatic presentations and severe clinical outcomes. METHODS: A total of 100 pair serum samples from adult healthy volunteers were obtained during the dengue season in Ha Noi in 2015 for evaluation of neutralizing and infection-enhancing activity...
January 10, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29300311/the-suppressive-activity-of-fucofuroeckol-a-derived-from-brown-algal-ecklonia-stolonifera-okamura-on-uvb-induced-mast-cell-degranulation
#16
Thanh Sang Vo, Se-Kwon Kim, BoMi Ryu, Dai Hung Ngo, Na-Young Yoon, Long Giang Bach, Nguyen Thi Nhat Hang, Dai Nghiep Ngo
UV light, especially UVB, is known as a trigger of allergic reaction, leading to mast cell degranulation and histamine release. In this study, phlorotannin Fucofuroeckol-A (F-A) derived from brown algal Ecklonia stolonifera Okamura was evaluated for its protective capability against UVB-induced allergic reaction in RBL-2H3 mast cells. It was revealed that F-A significantly suppress mast cell degranulation via decreasing histamine release as well as intracellular Ca2+ elevation at the concentration of 50 μM...
January 4, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29294792/clinician-response-to-child-abuse-presentations-in-the-vietnamese-hospital-emergency-setting
#17
Tara Flemington, Cathrine Fowler, Quang Nhat Tran, Jennifer Fraser
Ongoing fiscal stability has enabled the National Assembly in Vietnam to turn its attention to improving the health and well-being of women and children. Training pediatric health care professionals in the recognition and response to child abuse presentations in the emergency setting has the potential to improve outcomes for the disproportionate number of vulnerable children presenting to the emergency setting with nonaccidental injuries. This study explored the training needs and expectations of the staff preparing to undertake such a clinical training program...
June 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29279375/field-and-clinically-derived-estimates-of-wolbachia-mediated-blocking-of-dengue-virus-transmission-potential-in-aedes-aegypti-mosquitoes
#18
Lauren B Carrington, Bich Chau Nguyen Tran, Nhat Thanh Hoang Le, Tai Thi Hue Luong, Truong Thanh Nguyen, Phong Thanh Nguyen, Chau Van Vinh Nguyen, Huong Thi Cam Nguyen, Trung Tuan Vu, Long Thi Vo, Dui Thi Le, Nhu Tuyet Vu, Giang Thi Nguyen, Hung Quoc Luu, Anh Duc Dang, Timothy P Hurst, Scott L O'Neill, Vi Thuy Tran, Duong Thi Hue Kien, Nguyet Minh Nguyen, Marcel Wolbers, Bridget Wills, Cameron P Simmons
The wMel strain of Wolbachia can reduce the permissiveness of Aedes aegypti mosquitoes to disseminated arboviral infections. Here, we report that wMel-infected Ae. aegypti (Ho Chi Minh City background), when directly blood-fed on 141 viremic dengue patients, have lower dengue virus (DENV) transmission potential and have a longer extrinsic incubation period than their wild-type counterparts. The wMel-infected mosquitoes that are field-reared have even greater relative resistance to DENV infection when fed on patient-derived viremic blood meals...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29275223/antimicrobial-residues-and-resistance-against-critically-important-antimicrobials-in-non-typhoidal-salmonella-from-meat-sold-at-wet-markets-and-supermarkets-in-vietnam
#19
Nguyen Thi Nhung, Nguyen Thi Bich Van, Nguyen Van Cuong, Truong Thi Quy Duong, Tran Thi Nhat, Tran Thi Thu Hang, Nguyen Thi Hong Nhi, Bach Tuan Kiet, Vo Be Hien, Pham Thi Ngoc, James Campbell, Guy Thwaites, Juan Carrique-Mas
Excessive antimicrobial usage and deficiencies in hygiene in meat production systems may result in undesirable human health hazards, such as the presence of antimicrobial drug residues and non-typhoidal Salmonella (NTS), including antimicrobial resistant (AMR) NTS. Recently, Vietnam has witnessed the emergence of integrated intensive animal production systems, coexisting with more traditional, locally-sourced wet markets. To date no systematic studies have been carried out to compare health hazards in beef, pork and chicken in different production systems...
December 17, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29259207/dickkopf2-rescues-erectile-function-by-enhancing-penile-neurovascular-regeneration-in-a-mouse-model-of-cavernous-nerve-injury
#20
Kalyan Ghatak, Guo Nan Yin, Min-Ji Choi, Anita Limanjaya, Nguyen Nhat Minh, Jiyeon Ock, Kang-Moon Song, Dong Hyuk Kang, Young-Guen Kwon, Ho Min Kim, Ji-Kan Ryu, Jun-Kyu Suh
Penile erection is a neurovascular event and neurologic or vascular disturbances are major causes of erectile dysfunction (ED). Radical prostatectomy for prostate cancer not only induces cavernous nerve injury (CNI) but also results in cavernous angiopathy, which is responsible for poor responsiveness to oral phosphodiesterase-5 inhibitors. Dickkopf2 (DKK2) is known as a Wnt signaling antagonist and is reported to promote mature and stable blood vessel formation. Here, we demonstrated in CNI mice that overexpression of DKK2 by administering DKK2 protein or by using DKK2-Tg mice successfully restored erectile function: this recovery was accompanied by enhanced neural regeneration through the secretion of neurotrophic factors, and restoration of cavernous endothelial cell and pericyte content...
December 19, 2017: Scientific Reports
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