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https://www.readbyqxmd.com/read/27911359/directed-protein-packaging-within-outer-membrane-vesicles-from-escherichia-coli-design-production-and-purification
#1
Nathan J Alves, Kendrick B Turner, Scott A Walper
An increasing interest in applying synthetic biology techniques to program outer membrane vesicles (OMV) are leading to some very interesting and unique applications for OMV where traditional nanoparticles are proving too difficult to synthesize. To date, all Gram-negative bacteria have been shown to produce OMV demonstrating packaging of a variety of cargo that includes small molecules, peptides, proteins and genetic material. Based on their diverse cargo, OMV are implicated in many biological processes ranging from cell-cell communication to gene transfer and delivery of virulence factors depending upon which bacteria are producing the OMV...
November 16, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27909827/remediation-of-blowouts-by-clonal-plants-in-maqu-degraded-alpine-grasslands-of-northwest-china
#2
JianJun Kang, WenZhi Zhao, Ming Zhao
The sand-fixation of plants is considered to be the most effective and fundamental measure in desertification control in many arid and semi-arid regions. Carex brunnescens (Carex spp) and Leymus secalinus (Leymus), two perennial clonal herbs native to the Maqu degraded alpine areas of northwest China, are dominant and constructive species in active sand dunes that have excellent adaptability to fix sand dunes found to date. In order to study the ability and mechanism of sandland blowout remediation by two clone plants C...
December 1, 2016: Journal of Plant Research
https://www.readbyqxmd.com/read/27909819/cost-effects-of-preterm-birth-a-comparison-of-health-care-costs-associated-with-early-preterm-late-preterm-and-full-term-birth-in-the-first-3%C3%A2-years-after-birth
#3
Josephine Jacob, Moritz Lehne, Andrea Mischker, Normen Klinger, Claudia Zickermann, Jochen Walker
Preterm birth is one of the main causes for infant morbidity and mortality. Apart from negative health outcomes, preterm birth also produces significant health care expenditures. This study evaluates the costs associated with preterm birth in different health sectors during the first 3 years of infants' lives. In a retrospective observational study based on claims data from a German statutory health insurance company, average costs for medication, hospital treatment, ambulatory treatment, and non-medical remedies during the first 3 years after birth were analyzed for early preterm, late preterm, and full-term births...
December 1, 2016: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/27908913/comfrey-herbal-remedy-causing-second-degree-heart-block-do-not-be-outfoxed-by-digitalis
#4
Mathew Kurian Vithayathil, Matthew Edwards
A previously well woman aged 63 years presents to the emergency department with vomiting, palpitations and 3 presyncopal episodes. She had no previous medical or cardiac history, with the patient stating that she tried a herbal remedy of boiled comfrey leaves for insomnia 18 hours before arrival to the department. Her ECG showed multiple abnormalities, including bradycardia, second-degree atrioventricular node block, Mobitz Type 2, a shortened QT interval, downsloping ST depression and presence of U waves...
December 1, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27906604/statistical-considerations-regarding-to-correlated-lots-in-analytical-biosimilar-equivalence-test
#5
Meiyu Shen, Tianhua Wang, Yi Tsong
In the evaluation of the analytical similarity data, an equivalence testing approach for most critical and quantitative quality attributes, that are assigned to Tier 1 in their proposed three-tier approach, was proposed (Tsong, Dong, and Shen, 2016). Food and Drug Administration (FDA) has recommended the proposed equivalence testing approach to sponsors through meeting comments for Pre-Investigational New Drug Applications (PINDs) and Investigational New Drug Applications (INDs) since 2014. FDA has received some feedbacks on statistical issues of potentially correlated reference lot values subjected to the equivalence testing since independent and identical observations (lot values) from the proposed biosimilar product and the reference product are assumed...
December 1, 2016: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/27906009/current-trends-and-intricacies-in-the-management-of-hiv-associated-pulmonary-tuberculosis
#6
REVIEW
Narendran Gopalan, Padmapriyadarsini Chandrasekaran, Soumya Swaminathan, Srikanth Tripathy
Human immunodeficiency virus (HIV) epidemic has undoubtedly increased the incidence of tuberculosis (TB) globally, posing a formidable global health challenge affecting 1.2 million cases. Pulmonary TB assumes utmost significance in the programmatic perspective as it is readily transmissible as well as easily diagnosable. HIV complicates every aspect of pulmonary tuberculosis from diagnosis to treatment, demanding a different approach to effectively tackle both the diseases. In order to control these converging epidemics, it is important to diagnose early, initiate appropriate therapy for both infections, prevent transmission and administer preventive therapy...
September 26, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27904947/a-methodology-to-evaluate-ecological-resources-and-risk-using-two-case-studies-at-the-department-of-energy-s-hanford-site
#7
Joanna Burger, Michael Gochfeld, Amoret Bunn, Janelle Downs, Christian Jeitner, Taryn Pittfield, Jennifer Salisbury, David Kosson
An assessment of the potential risks to ecological resources from remediation activities or other perturbations should involve a quantitative evaluation of resources on the remediation site and in the surrounding environment. We developed a risk methodology to rapidly evaluate potential impact on ecological resources for the U.S. Department of Energy's Hanford Site in southcentral Washington State. We describe the application of the risk evaluation for two case studies to illustrate its applicability. The ecological assessment involves examining previous sources of information for the site, defining different resource levels from 0 to 5...
November 30, 2016: Environmental Management
https://www.readbyqxmd.com/read/27901335/the-role-of-natural-galactagogues-during-breast-feeding-focus-on-a-galega-officinalis-based-food-supplement
#8
Silvia Salatino, Luca Giacomelli, Ilaria Carnevali, Erika Giacomelli
Maternal milk is the optimal food for newborns. To this end, a number of interventions are used to enhance milk production. However, pharmacological interventions may be associated with a perceived risk of adverse effects and therefore many mothers prefer to rely on natural herbal remedies. Several herbal remedies have been traditionally used to this purpose. However, the level of evidence supporting their use is mixed. Among different currently-employed natural remedies, Galega officinalis has emerged to be one of those sustained by the strongest evidence...
November 30, 2016: Minerva Pediatrica
https://www.readbyqxmd.com/read/27900669/disruptive-behaviour-in-the-perioperative-setting-a-contemporary-review
#9
Alexander Villafranca, Colin Hamlin, Stephanie Enns, Eric Jacobsohn
PURPOSE: Disruptive behaviour, which we define as behaviour that does not show others an adequate level of respect and causes victims or witnesses to feel threatened, is a concern in the operating room. This review summarizes the current literature on disruptive behaviour as it applies to the perioperative domain. SOURCE: Searches of MEDLINE(®), Scopus™, and Google books identified articles and monographs of interest, with backreferencing used as a supplemental strategy...
November 29, 2016: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/27900668/propensity-score-weighting-compared-to-matching-in-a-study-of-dabigatran-and-warfarin
#10
John D Seeger, Katsiaryna Bykov, Dorothee B Bartels, Krista Huybrechts, Sebastian Schneeweiss
INTRODUCTION: Comparing medications in observational settings requires differences in patient characteristics to be accounted for. Propensity score (PS) methods can address these differences, but PS weighting approaches may introduce bias. METHODS: Within a cohort study of anticoagulant initiators from October 2010 through to December 2012, PS values for dabigatran relative to warfarin were estimated, and study outcomes (stroke or major bleeding) among the cohort were identified...
November 29, 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/27899097/antinociception-of-petroleum-ether-fraction-derived-from-crude-methanol-extract-of-melastoma-malabathricum-leaves-and-its-possible-mechanisms-of-action-in-animal-models
#11
Z A Zakaria, E S Jaios, M H Omar, S Abd Rahman, S S A Hamid, S M Ching, L K Teh, M Z Salleh, S Deny, M Taher
BACKGROUND: Melastoma malabathricum L. (family Melastomaceae) has been traditionally used as remedies against various ailments including those related to pain. The methanol extract of M. malabathricum leaves has been proven to show antinociceptive activity. Thus, the present study aimed to determine the most effective fraction among the petroleum ether- (PEMM), ethyl acetate- (EAMM) and aqueous- (AQMM) fractions obtained through successive fractionation of crude, dried methanol extract of M...
November 29, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27899036/learning-from-the-minds-of-others-a-review-of-social-cognition-treatments-and-their-relevance-to-traumatic-brain-injury
#12
Anneli Cassel, Skye McDonald, Michelle Kelly, Leanne Togher
Social cognition is widely regarded as an essential skill with which to understand the social world. Despite this, the role that social cognition plays in outcome, and whether deficits are remediable after traumatic brain injury (TBI), are not yet well known. The current review examines the construct of social cognition and presents a conceptual biopsychosocial model with which to understand the social cognitive process. This is related to the literature on social cognitive deficits in TBI and we discuss relevant treatment developments to date within this population...
November 30, 2016: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/27898777/synchrotron-based-x-ray-spectroscopy-studies-for-redox-based-remediation-of-lead-zinc-and-cadmium-in-mine-waste-materials
#13
Ranju R Karna, Ganga M Hettiarachchi, Matthew Newville, ChengJun Sun, Qing Ma
Several studies have examined the effect of submergence on the mobility of metals present in mine waste materials. This study examines the effect of organic carbon (OC) and sulfur (S) additions and submergence time on redox-induced biogeochemical transformations of lead (Pb), zinc (Zn), and cadmium (Cd) present in mine waste materials collected from the Tri-State mining district located in southeastern Kansas, southwestern Missouri, and northeastern Oklahoma. A completely randomized design, with a two-way treatment structure, was used for conducting a series of column experiments...
November 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27898702/unit-root-testing-and-estimation-in-nonlinear-estar-models-with-normal-and-non-normal-errors
#14
Umair Khalil, Alamgir, Amjad Ali, Dost Muhammad Khan, Sajjad Ahmad Khan, Zardad Khan
Exponential Smooth Transition Autoregressive (ESTAR) models can capture non-linear adjustment of the deviations from equilibrium conditions which may explain the economic behavior of many variables that appear non stationary from a linear viewpoint. Many researchers employ the Kapetanios test which has a unit root as the null and a stationary nonlinear model as the alternative. However this test statistics is based on the assumption of normally distributed errors in the DGP. Cook has analyzed the size of the nonlinear unit root of this test in the presence of heavy-tailed innovation process and obtained the critical values for both finite variance and infinite variance cases...
2016: PloS One
https://www.readbyqxmd.com/read/27898510/the-effect-of-implementation-of-preoperative-and-postoperative-care-elements-of-a-perioperative-surgical-home-model-on-outcomes-in-patients-undergoing-hip-arthroplasty-or-knee-arthroplasty
#15
Thomas R Vetter, Joydip Barman, James M Hunter, Keith A Jones, Jean-Francois Pittet
BACKGROUND: The Perioperative Surgical Home (PSH) seeks to remedy the currently highly fragmented and expensive perioperative care in the United States. The 2 specific aims of this health services research study were to assess the association between the preoperative and postoperative elements of an initial PSH model and a set of (1) clinical, quality, and patient safety outcomes and (2) operational and financial outcomes, in patients undergoing total hip arthroplasty (THA) or total knee arthroplasty (TKA)...
November 28, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27898326/biochar-supported-ni-fe-bimetallic-nanoparticles-to-remove-1-1-1-trichloroethane-under-various-reaction-conditions
#16
Hui Li, Yue-Feng Qiu, Xiao-Li Wang, Jie Yang, Yun-Jiang Yu, Ya-Qin Chen, Yong-di Liu
In this study, Ni/Fe nanoparticles supported by biochar to stimulate the reduction of 1,1,1-trichloroethane (1,1,1-TCA) in groundwater remediation was investigated. In order to enhance the reactivity of ZVI (zero valent iron) nanoparticles, surface modification of ZVI was performed using nickel and biochar. The removal efficiency of 1,1,1-TCA increased from 42.3% to 99.3% as the biochar-to-Ni/Fe mass ratio increased from 0 to 1.0. However a higher biochar-to-Ni/Fe ratio showed little difference in the 1,1,1-TCA degradation efficiency...
November 26, 2016: Chemosphere
https://www.readbyqxmd.com/read/27897111/aggressive-antioxidant-reductive-stress-impairs-brain-endothelial-cell-angiogenesis-and-blood-brain-barrier-function
#17
Shireen Mentor, David Fisher
Oxidative stress in the brain microvasculature is a common characteristic in models of cerebrovascular disease. Considering the effects of reactive oxygen species activity in vascular-derived insults, it is naturally prudent to hypothesize those interventions inhibiting reactive oxygen species activity, such as antioxidant supplementation, may be beneficial for cerebrovascular disease. Hyper doses of antioxidant supplements, and foods with high antioxidant concentrations, are commonly used as an ongoing remedial and 'over-the-counter' treatments for most seasonal ailments...
November 29, 2016: Current Neurovascular Research
https://www.readbyqxmd.com/read/27896877/flavonoids-of-herba-epimedii-enhances-bone-repair-in-a-rabbit-model-of-chronic-osteomyelitis-during-post-infection-treatment-and-stimulates-osteoblast-proliferation-in-vitro
#18
Dan Shou, Yang Zhang, Lifeng Shen, Rongzong Zheng, Xiaowen Huang, Zhujun Mao, Zhongming Yu, Nani Wang, Yan Zhu
Flavonoids are the active component of the Herba Epimedii (H. Epimedii), which is commonly used in Asia. This study is to investigate the effect of H. Epimedii on bone repair after anti-infection treatment in vivo. The bioactive-composition group of H. Epimedii (BCGE) contained four flavonoids with the total content of 43.34%. Rabbits with chronic osteomyelitis in response to injection with Staphylococcus aureus were treated with BCGE of 242.70 mg/kg/day intragastrically after vancomycin-calcium sulphate treatment...
November 29, 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/27895830/development-of-a-subspecialty-cardiology-curriculum-for-paediatric-registrars-in-malawi-implementation-of-a-long-distance-hybrid-model
#19
Laura Newberry, Neil Kennedy, Elizabeth A Greene
BACKGROUND: Malawi has a high burden of paediatric cardiac disease but a limited number of health providers familiar with these chronic diseases. Given the rising number of Malawian postgraduate paediatric trainees at the University of Malawi College of Medicine, we sought to remedy this lack of basic cardiology training with a long-distance, module-based curriculum that could be utilised independently, as needed, with on-site teaching. We also wished to evaluate the initial modules for utility and improvement in knowledge and confidence in each topic...
June 2016: Malawi Medical Journal: the Journal of Medical Association of Malawi
https://www.readbyqxmd.com/read/27895238/combined-modality-intervention-for-adhd-with-comorbid-reading-disorders-a-proof-of-concept-study
#20
Rosemary Tannock, Jan C Frijters, Rhonda Martinussen, Erin Jacquelyn White, Abel Ickowicz, Nancy J Benson, Maureen W Lovett
To evaluate the relative efficacy of two reading programs with and without adjunctive stimulant medication for children with attention-deficit/hyperactivity disorder and comorbid reading disorder (ADHD+RD). Sixty-five children (7-11 years in age) were assigned randomly to one of three intensive remedial academic programs (phonologically or strategy-based reading instruction, or general academic strategy and social skills training) in combination with either immediate-release methylphenidate or placebo. Multiple-blind procedures were used for medication/placebo, given twice daily...
November 28, 2016: Journal of Learning Disabilities
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