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https://www.readbyqxmd.com/read/28938162/characterization-of-wedge-waves-propagating-along-wedge-tips-with-defects
#1
Ming-I Chen, Seng-Po Tesng, Pei-Yuan Lo, Che-Hua Yang
Wedge waves are guided acoustic waves propagating along the tip of a wedge with the energy tightly confined near the wedge. Anti-symmetric flexural (ASF) modes are wedge waves with their particle motion anti-symmetric with the apex mid-plane. This study investigates the behaviors of ASF modes propagation along wedge tips with perfect and imperfect rectangular defects. Numerical finite element simulations and experimental measurements using a laser ultrasound technique are employed to explore the behaviors of ASF modes interacting with defects...
September 14, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28937911/characterization-and-application-of-the-enzyme-peroxidase-to-the-degradation-of-the-mycotoxin-don
#2
Ana Carla P Feltrin, Sabrina De O Garcia, Sergiane S Caldas, Ednei G Primel, Eliana Badiale-Furlong, Jaqueline Garda-Buffon
Deoxynivalenol (DON), one of the main mycotoxins found in food matrices, has high level of toxicity. This study aimed to characterize the peroxidase enzyme extracted from rice bran to be applied to the biodegradation of DON in order to evaluate the potential peroxidase (PO) from rice bran (RB) has to degrade DON in optimal conditions. Purification and recovery factors of PO extracted from RB and purified by three-phase partitioning were 5.7% and 50%, respectively. PO had the highest level of activity in the phosphate buffer 5 mM pH 5...
September 22, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28937607/tip-pressure-on-semicircular-specimens-in-tapping-mode-atomic-force-microscopy-in-viscous-fluid-environments
#3
Hua-Ju Shih, Ching-Liang Dai, Po-Jen Shih
Tapping mode (TM) atomic force microscopy (AFM) in a liquid environment is widely used to measure the contours of biological specimens. The TM triggers the AFM probe approximately at the resonant frequencies and controls the tip such that it periodically touches the specimen along the scanning path. The AFM probe and its tip produce a hydrodynamic pressure on the probe itself and press the specimen. The tip to specimen size ratio is known to affect the measurement accuracy of AFM, however, few studies have focused on the hydrodynamic pressure caused by the effects of specimen size...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28935928/location-of-cerebral-microbleeds-and-their-association-with-carotid-intima-media-thickness-a-community-based-study
#4
Chih-Ping Chung, Kun-Hsien Chou, Wei-Ta Chen, Li-Kuo Liu, Wei-Ju Lee, An-Chun Huang, Liang-Kung Chen, Ching-Po Lin, Pei-Ning Wang
To assess whether high cerebral microbleeds (CMBs) are associated with carotid intima-media thickness (CIMT), a marker of systemic atherosclerosis, we cross-sectionally evaluated participants from a community-based study, the I-Lan Longitudinal Aging Study. The participants' demographics and cardiovascular risk factors were determined by questionnaire and/or laboratory measurements. CIMT was measured by ultrasonography. CMBs were assessed by susceptibility-weighted-imaging on 3 T MRI. Of the 962 subjects [62...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935193/celastrol-inhibits-hepatitis-c-virus-replication-by-upregulating-heme-oxygenase-1-via-the-jnk-mapk-nrf2-pathway-in-human-hepatoma-cells
#5
Chin-Kai Tseng, Sung-Po Hsu, Chun-Kuang Lin, Yu-Hsuan Wu, Jin-Ching Lee, Kung-Chia Young
BACKGROUND AND PURPOSE: Celastrol, a quinone methide triterpene isolated from the root extracts of Tripterygium wilfordii, can greatly induce the gene expression activity of heme oxygenase-1 (HO-1) to achieve disease prevention and control. HO-1 induction was recently shown to result in anti-HCV activity by inducing type I interferon and inhibiting hepatitis C virus (HCV) NS3/4A protease activity. The aim of the present study is to evaluate the anti-HCV activity of celastrol and characterize its mechanism of inhibition...
September 18, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28934668/diabetes-mellitus-increased-all-cause-mortality-rate-among-newly-diagnosed-tuberculosis-patients-in-an-asian-population-a-nationwide-population-based-study
#6
Po-Yen Ko, Shi-Dou Lin, Ming-Chia Hsieh, Yu-Cheng Chen
AIMS: To investigate the effect of diabetes mellitus (DM) on all-cause mortality among patients with newly-diagnosed tuberculosis (TB) in an Asian population. We also identified risk factors for mortality in these patients. METHODS: The data were obtained from the National Health Insurance Research Database and included 9831 newly-diagnosed TB individuals and 1627 TB mortality cases in the period of 2000-2010. The mortality data were divided into a DM group and a non-DM group...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28934554/improvements-in-clinical-practice-for-fertility-preservation-among-young-cancer-patients-results-from-bundled-interventions
#7
Natalie K Bradford, Roderick Walker, Roslyn Henney, Po Inglis, Raymond J Chan
AIMS: The consequences of cancer and treatment on fertility can be a continuing source of distress for adolescents and young adults. The study aims were to assess the effects of bundled interventions on clinical practice concerning fertility in young people aged 14-25 years with cancer. METHODS: Bundled interventions, including development of quality indicators, resources, and targeted education, were introduced during 2015 across five cancer centers. Data before interventions (2012-2014) were compared with data prospectively collected during 2015-2016...
September 21, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28933705/durability-of-antiretroviral-therapy-regimens-and-determinants-for-change-in-hiv-1-infected-patients-in-the-treat-asia-hiv-observational-database-tahod-lite
#8
Rosario Martinez-Vega, Nicole L De La Mata, Nagalingeswaran Kumarasamy, Penh Sun Ly, Kinh Van Nguyen, Tuti P Merati, Thi Thanh Pham, Man Po Lee, Jun Yong Choi, Jeremy L Ross, Oon Tek Ng
BACKGROUND: The durability of first line regimen is important to achieve long term treatment success for the management of HIV infection. Our analysis describes the duration of sequential ART regimens and identifies the determinants leading to treatment change in HIV-positive patients initiating in Asia. METHODS: All HIV-positive adult patients initiating first-line ART in 2003-2013, from eight clinical sites among seven countries in Asia. Patient follow-up was to May 2014...
September 21, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28932888/assessment-of-molecular-detection-of-anaerobic-ammonium-oxidizing-anammox-bacteria-in-different-environmental-samples-using-pcr-primers-based-on-16s-rrna-and-functional-genes
#9
Ping Han, Uli Klümper, Alex Wong, Meng Li, Jih-Gaw Lin, Zhexue Quan, Martin Denecke, Ji-Dong Gu
Eleven published PCR primer sets for detecting genes encoding 16S ribosomal RNA (rRNA), hydrazine oxidoreductase (HZO), cytochrome cd 1-containing nitrite reductase (NirS), and hydrazine synthase subunit A (HzsA) of anaerobic ammonium-oxidizing (anammox) bacteria were assessed for the diversity and abundance of anammox bacteria in samples of three environments: wastewater treatment plant (WWTP), wetland of Mai Po Nature Reserve (MP), and the South China Sea (SCS). Consistent phylogenetic results of three biomarkers (16S rRNA, hzo, and hzsA) of anammox bacteria were obtained from all samples...
September 20, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28932113/cationic-lipid-based-nanoparticles-mediate-functional-delivery-of-acetate-to-tumor-cells-in-vivo-leading-to-significant-anticancer-effects
#10
Leigh P Brody, Meliz Sahuri-Arisoylu, James R Parkinson, Harry G Parkes, Po Wah So, Nabil Hajji, E Louise Thomas, Gary S Frost, Andrew D Miller, Jimmy D Bell
Metabolic reengineering using nanoparticle delivery represents an innovative therapeutic approach to normalizing the deregulation of cellular metabolism underlying many diseases, including cancer. Here, we demonstrated a unique and novel application to the treatment of malignancy using a short-chain fatty acid (SCFA)-encapsulated lipid-based delivery system - liposome-encapsulated acetate nanoparticles for cancer applications (LITA-CAN). We assessed chronic in vivo administration of our nanoparticle in three separate murine models of colorectal cancer...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28931655/protection-against-a-mixed-shiv-challenge-by-a-broadly-neutralizing-antibody-cocktail
#11
Boris Julg, Po-Ting Liu, Kshitij Wagh, William M Fischer, Peter Abbink, Noe B Mercado, James B Whitney, Joseph P Nkolola, Katherine McMahan, Lawrence J Tartaglia, Erica N Borducchi, Shreeya Khatiwada, Megha Kamath, Jake A LeSuer, Michael S Seaman, Stephen D Schmidt, John R Mascola, Dennis R Burton, Bette T Korber, Dan H Barouch
HIV-1 sequence diversity presents a major challenge for the clinical development of broadly neutralizing antibodies (bNAbs) for both therapy and prevention. Sequence variation in critical bNAb epitopes has been observed in most HIV-1-infected individuals and can lead to viral escape after bNAb monotherapy in humans. We show that viral sequence diversity can limit both the therapeutic and prophylactic efficacy of bNAbs in rhesus monkeys. We first demonstrate that monotherapy with the V3 glycan-dependent antibody 10-1074, but not PGT121, results in rapid selection of preexisting viral variants containing N332/S334 escape mutations and loss of therapeutic efficacy in simian-HIV (SHIV)-SF162P3-infected rhesus monkeys...
September 20, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28931324/phenoloxidase-an-effective-bioactivity-target-for-botanical-insecticide-screening-from-green-walnut-husks
#12
Wenyi Hu, Wenxian Du, Shumin Bai, Sitong Lv, Guang Chen
Phenoloxidase, a critical enzyme in insects, may serve as a promising target in botanical insecticide development. In an effort to identify active ingredients with insecticidal properties in green walnut husks, juglone and plumbagin were isolated from the chloroform extract using phenoloxidase as bioactive target with the IC50 of 0.247 g/L and 0.256 g/L, respectively. After an artificial diet feeding of the juglone or plumbagin, more than 50% corrected mortality in stomach toxicity form was observed in Pieris rapae Linne larvae and Helicoverpa armigera Hübner larvae at the concentration ≥0...
September 20, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28931308/clinical-factors-associated-with-adherence-to-the-premedication-protocol-for-withdrawal-of-mechanical-ventilation-in-terminally-ill-patients-a-4-year-experience-at-a-single-medical-center-in-asia
#13
Chao-Hui Wang, Pei-Wei Huang, Chia-Yen Hung, Shu-Hui Lee, Chen-Yi Kao, Hung-Ming Wang, Yu-Shin Hung, Po-Jung Su, Yung-Chia Kuo, Chia-Hsun Hsieh, Wen-Chi Chou
PURPOSE: Data on end-of-life care practices in Asia are scarce. This study aimed to analyze the clinical factors associated with the recommended premedication protocol for mechanical ventilation withdrawal, in Taiwan. METHODS: A total of 135 terminally ill patients who had mechanical ventilation withdrawn between 2013 and 2016 from a single medical center in Taiwan were enrolled. A premedication protocol of morphine and midazolam intravenous bolus was routinely recommended for the patients before mechanical ventilation withdrawal...
January 1, 2017: American Journal of Hospice & Palliative Care
https://www.readbyqxmd.com/read/28931208/treatment-of-palm-oil-mill-effluent-using-combination-system-of-microbial-fuel-cell-and-anaerobic-membrane-bioreactor
#14
Sze Pin Tan, Hong Feng Kong, Mohammed J K Bashir, Po Kim Lo, Chii-Dong Ho, Choon Aun Ng
It was found that the operational temperature and the incorporation of microbial fuel cell (MFC) into anaerobic membrane bioreactor (AnMBR) have significant effect on AnMBRs' filtration performance. This paper addresses two issues (i) effect of temperature on AnMBR; and (ii) effect of MFC on AnMBRs' performance. The highest COD removal efficiency was observed in mesophilic condition (45°C). It was observed that the bioreactors operated at 45°C had the highest filtration resistance compared to others, albeit the excellent performance in removing the organic pollutant...
September 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28930937/administration-of-hypertonic-solutions-for-hemorrhagic-shock-a-systematic-review-and-meta-analysis-of-clinical-trials
#15
Meng-Che Wu, Tin-Yun Liao, Erica M Lee, Yueh-Sheng Chen, Wan-Ting Hsu, Meng-Tse Gabriel Lee, Po-Yang Tsou, Shyr-Chyr Chen, Chien-Chang Lee
BACKGROUND: Several clinical trials on hypertonic fluid administration have been completed, but the results have been inconclusive. The objective of this study is to summarize current evidence for treating hypovolemic patients with hypertonic solutions by performing a systematic review and meta-analysis. METHODS: Major electronic databases were searched from inception through June 2014. We included only randomized controlled trials involving hemorrhagic shock patients treated with hypertonic solutions...
September 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28929512/systematic-design-of-a-magnetically-levitated-brushless-dc-motor-for-a-reversible-rotary-intra-aortic-blood-pump
#16
Yaxin Wang, Thomas G Logan, P Alex Smith, Po-Lin Hsu, William E Cohn, Liping Xu, Richard A McMahon
The IntraVAD is a miniature intra-aortic ventricular assist device (VAD) designed to work in series with the compromised left ventricle. A reverse-rotation control (RRc) mode has been developed to increase myocardial perfusion and reduce ventricular volume. The RRc mode includes forward rotation in systole and reverse rotation in diastole, which requires the IntraVAD to periodically reverse its rotational direction in synchrony with the cardiac cycle. This periodic reversal leads to changes in pressure force over the impeller, which makes the entire system less stable...
September 20, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28929098/the-degree-of-one-health-implementation-in-the-west-nile-virus-integrated-surveillance-in-northern-italy-2016
#17
REVIEW
Giulia Paternoster, Laura Tomassone, Marco Tamba, Mario Chiari, Antonio Lavazza, Mauro Piazzi, Anna R Favretto, Giacomo Balduzzi, Alessandra Pautasso, Barbara R Vogler
West Nile virus (WNV) is endemic in the Po valley area, Northern Italy, and within the legal framework of the national plan for the surveillance of human vector-borne diseases, WNV surveillance has over time been implemented. The surveillance plans are based on the transdisciplinary and trans-sectorial collaboration between regional institutions involved in public, animal, and environmental health. This integrated surveillance targets mosquitoes, wild birds, humans, and horses and aims at early detecting the viral circulation and reducing the risk of infection in the human populations...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28928427/warming-up-human-body-by-nanoporous-metallized-polyethylene-textile
#18
Lili Cai, Alex Y Song, Peilin Wu, Po-Chun Hsu, Yucan Peng, Jun Chen, Chong Liu, Peter B Catrysse, Yayuan Liu, Ankun Yang, Chenxing Zhou, Chenyu Zhou, Shanhui Fan, Yi Cui
Space heating accounts for the largest energy end-use of buildings that imposes significant burden on the society. The energy wasted for heating the empty space of the entire building can be saved by passively heating the immediate environment around the human body. Here, we demonstrate a nanophotonic structure textile with tailored infrared (IR) property for passive personal heating using nanoporous metallized polyethylene. By constructing an IR-reflective layer on an IR-transparent layer with embedded nanopores, the nanoporous metallized polyethylene textile achieves a minimal IR emissivity (10...
September 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28928376/oligo-fucoidan-prevents-il-6-and-ccl2-production-and-cooperates-with-p53-to-suppress-atm-signaling-and-tumor-progression
#19
Li-Mei Chen, Po-Yen Liu, Yen-An Chen, Hong-Yu Tseng, Pei-Chun Shen, Pai-An Hwang, Hsin-Ling Hsu
Low-molecular-weight Fucoidan (Oligo-Fucoidan) is a sulfated polysaccharide that has a variety of biological effects and has also been shown to have beneficial health effects. However, the molecular mechanisms underlying the therapeutic effects of Oligo-Fucoidan in patients with cancer remain unclear. Using human colorectal cancer HCT116 cells with (p53(+/+)) or without (p53(-/-)) normal p53 expression, we found that Oligo-Fucoidan treatment reduces the occurrence of spontaneous DNA lesions. Etoposide induces double strand DNA breaks...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28927713/risk-factors-of-early-adverse-drug-reactions-with-phenytoin-a-prospective-inpatient-cohort
#20
Reinaldo Uribe-San-Martín, Ethel Ciampi, Wilhelm Uslar, Silvana Villagra, Jaime Godoy, Patricio Mellado
INTRODUCTION: Phenytoin (PHT) is an effective and inexpensive antiepileptic drug (AED). However, its use has been limited for fear of adverse drug reactions (ADRs) and is being replaced by newer AED, increasing the costs and causing major budget problems, particularly for developing countries. OBJECTIVE: The objective of this study was to determine ADR frequency, explore, and establish related risk factors. METHODS: Prospective data were collected from a cohort of inpatients using PHT for the first time...
September 15, 2017: Epilepsy & Behavior: E&B
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