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https://www.readbyqxmd.com/read/28209171/integrated-strategy-for-in-vitro-characterization-of-a-bileaflet-mechanical-aortic-valve
#1
Francesca Maria Susin, Stefania Espa, Riccardo Toninato, Stefania Fortini, Giorgio Querzoli
BACKGROUND: Haemodynamic performance of heart valve prosthesis can be defined as its ability to fully open and completely close during the cardiac cycle, neither overloading heart work nor damaging blood particles when passing through the valve. In this perspective, global and local flow parameters, valve dynamics and blood damage safety of the prosthesis, as well as their mutual interactions, have all to be accounted for when assessing the device functionality. Even though all these issues have been and continue to be widely investigated, they are not usually studied through an integrated approach yet, i...
February 16, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28190578/quarter-dose-quadruple-combination-therapy-for-initial-treatment-of-hypertension-placebo-controlled-crossover-randomised-trial-and-systematic-review
#2
Clara K Chow, Jay Thakkar, Alex Bennett, Graham Hillis, Michael Burke, Tim Usherwood, Kha Vo, Kris Rogers, Emily Atkins, Ruth Webster, Michael Chou, Hakim-Moulay Dehbi, Abdul Salam, Anushka Patel, Bruce Neal, David Peiris, Henry Krum, John Chalmers, Mark Nelson, Christopher M Reid, Mark Woodward, Sarah Hilmer, Simon Thom, Anthony Rodgers
BACKGROUND: Globally, most patients with hypertension are treated with monotherapy, and control rates are poor because monotherapy only reduces blood pressure by around 9/5 mm Hg on average. There is a pressing need for blood pressure-control strategies with improved efficacy and tolerability. We aimed to assess whether ultra-low-dose combination therapy could meet these needs. METHODS: We did a randomised, placebo-controlled, double-blind, crossover trial of a quadpill-a single capsule containing four blood pressure-lowering drugs each at quarter-dose (irbesartan 37·5 mg, amlodipine 1·25 mg, hydrochlorothiazide 6·25 mg, and atenolol 12·5 mg)...
February 9, 2017: Lancet
https://www.readbyqxmd.com/read/28186686/combined-bone-marrow-derived-mesenchymal-stromal-cell-therapy-and-one-way-endobronchial-valve-placement-in-patients-with-pulmonary-emphysema-a-phase-i-clinical-trial
#3
Hugo Goulart de Oliveira, Fernanda Ferreira Cruz, Mariana Alves Antunes, Amarilio Vieira de Macedo Neto, Guilherme Augusto Oliveira, Fabio Munhoz Svartman, Tamara Borgonovo, Carmen Lucia Kuniyoshi Rebelatto, Daniel J Weiss, Paulo Roberto Slud Brofman, Marcelo Marcos Morales, José Roberto Lapa E Silva, Patricia Rieken Macedo Rocco
One-way endobronchial valves (EBV) insertion to reduce pulmonary air trapping has been used as therapy for chronic obstructive pulmonary disease (COPD) patients. However, local inflammation may result and can contribute to worsening of clinical status in these patients. We hypothesized that combined EBV insertion and intrabronchial administration of mesenchymal stromal cells (MSCs) would decrease the inflammatory process, thus mitigating EBV complications in severe COPD patients. This initial study sought to investigate the safety of this approach...
December 9, 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28165762/extended-release-guanfacine-in-pediatric-anxiety-disorders-a-pilot-randomized-placebo-controlled-trial
#4
Jeffrey R Strawn, Scott N Compton, Brigitte Robertson, Anne Marie Albano, Mohamed Hamdani, Moira A Rynn
OBJECTIVE: This is a feasibility study evaluating the safety, tolerability, and potential anxiolytic efficacy of the α2 agonist guanfacine extended-release (GXR) in children and adolescents with generalized anxiety disorder (GAD), separation anxiety disorder (SAD), or social phobia/social anxiety disorder. METHODS: Youth aged 6-17 years with a primary diagnosis of GAD, SAD, and/or social anxiety disorder were treated with flexibly dosed GXR (1-6 mg daily, n = 62) or placebo (n = 21) for 12 weeks...
February 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28118537/pharmacodynamics-safety-and-clinical-efficacy-of-amg-811-a-human-anti-interferon-%C3%AE-antibody-in-subjects-with-discoid-lupus-erythematosus
#5
Victoria P Werth, David Fiorentino, Barbara A Sullivan, Michael J Boedigheimer, Kit Chiu, Christine Wang, Gregory E Arnold, Michael A Damore, Jeannette Bigler, Andrew A Welcher, Chris B Russell, David A Martin, James B Chung
OBJECTIVE: Interferon (IFN)-γ is implicated in the pathogenesis of discoid lupus erythematosus (DLE). This study evaluated a single dose of AMG 811, an anti-IFN-γ antibody, in subjects with DLE. METHODS: This was a phase 1, randomized, double-blind, placebo-controlled, crossover study (sequence 1: AMG 811 followed by placebo; sequence 2: placebo followed by AMG 811). Subjects received a single subcutaneous dose of AMG 811 (180 mg) or placebo. Pharmacodynamic endpoints included global transcriptional analyses of lesional and nonlesional skin, IFN-γ Blockade Signature (IGBS) transcriptional score in skin and blood, keratinocyte IFN-γ RNA score, and serum CXCL-10 protein...
January 24, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28111724/update-of-the-activity-of-telavancin-against-a-global-collection-of-staphylococcus-aureus-causing-bacteremia-including-endocarditis-2011-2014
#6
R E Mendes, H S Sader, J I Smart, M Castanheira, R K Flamm
The efficacy and safety of telavancin is under evaluation for the treatment of subjects with complicated Staphylococcus aureus bacteremia and S. aureus right-sided infective endocarditis. This study evaluated the telavancin activity against a global collection of S. aureus causing bloodstream infections (BSI), including endocarditis, to support the development of bacteremia/endocarditis clinical indications. This study included a total of 4191 S. aureus [1490 methicillin-resistant S. aureus (MRSA)], which were unique (one per patient) clinical isolates recovered from blood samples collected during 2011-2014 in a global network of hospitals...
January 22, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28067569/optimizing-postoperative-handover-to-the-intensive-care-unit-at-a-tertiary-centre
#7
Shankar Kumar, Andrew R McKean, Andrew Ramwell, Carolyn Johnston, Susannah Leaver
BACKGROUND: Comprehensive handover of patients transferred from operating theatre to the intensive care unit is crucial in ensuring ongoing quality and safety of care. Handover in this setting poses unique challenges, yet few studies have considered or tested approaches to improve the process. A quality improvement project was undertaken to assess and improve the quality of information transfer during the handover of postoperative patients to the general intensive care unit at a tertiary centre...
January 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28066010/olanzapine-has-better-efficacy-compared-to-risperidone-for-treatment-of-negative-symptoms-in-schizophrenia
#8
P N Suresh Kumar, P K Anish, V Rajmohan
OBJECTIVE: The safety and efficacy profile of risperidone and olanzapine were compared in a double-blind trial that used doses widely accepted in clinical practice. METHODS: Subjects (n = 71) who met Diagnostic and Statistical Manual of Mental Disorders-IV criteria for schizophrenia were randomly assigned to receive 2-8 mg/day of risperidone (mean modal dose = 5.5 mg/day) or 5-20 mg/day of olanzapine (mean modal dose = 14.4 mg/day) for 1 year. RESULTS: The two study groups were similar at baseline in all aspects...
July 2016: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28050721/titanium-dioxide-nanoparticles-an-in-vitro-study-of-dna-binding-chromosome-aberration-assay-and-comet-assay
#9
Suhani Patel, Palak Patel, Sonal R Bakshi
Engineered titanium dioxide nanoparticles (TiO2 NPs) are extensively used in cosmetic, pharmaceutical and other industries globally due to their unique properties, which has raised concern for biosafety. Genotoxicity assessment is an important part of biosafety evaluation; we report in vitro cytogenetic assays for NPs considering their unique physicochemical characteristics to fill the gap of laboratory data regarding biological safety along with mechanistic study for mode of interaction of NP with genetic material...
January 3, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28011230/sglt-2-inhibitors-their-pleiotropic-properties
#10
REVIEW
Natalia G Vallianou, Eleni Geladari, Christos E Kazazis
Type 2 diabetes mellitus has become a global pandemic. Nowadays, it is estimated that approximately 415 million people all over the world have diabetes. The sodium glucose co-transporters 2 inhibitors are a new class of glucose-lowering agents, which act through a novel mechanism by producing a decline in glucose re-absorption in the kidney, thereby increasing glycosuria and decreasing serum glucose levels. Data suggest that apart from lowering HbA1c, they produce a small but significant weight loss and a small decrease in blood pressure...
December 9, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28009328/seroprevalence-and-diagnosis-of-hiv-hbv-hcv-and-syphilis-infections-among-blood-donors
#11
Tadesse Bekele Tafesse, Addis Adera Gebru, Semgne Gobalee, Gosaye Degu Bely, Molla Teferi Belew, Demelash Arso, Belay Ali Ebrahim, Getachew Mekonnon Shebeshi, Yonas Yimam
BACKGROUND: Blood transfusion is one of the most important therapeutic options of life-saving intervention for recipients who are in diseased or non-diseased conditions with severe blood loss. However, it is associated with certain risks which can lead to adverse consequences that may cause acute or delayed complications and bring the risk of transfusion-transmissible infections including HIV, Hepatitis B & C and Syphilis. So, there might be a fatal risk instead of life saving. This paper aims to provide a comprehensive and reliable tabulation of available data on seroprevalence and diagnosis of HIV, HBV, HCV and Syphilis infections among blood donors...
December 16, 2016: Human Antibodies
https://www.readbyqxmd.com/read/27994942/effect-of-telmisartan-on-kidney-function-in-patients-with-chronic-kidney-disease-an-observational-study
#12
Ashish Agrawal, Shibnath Kamila, Swetha Reddy, Joyal Lilly, Ms Sadhguna Mariyala
Background: Globally the burden of chronic kidney disease (CKD) is rising, an important cause of death and loss of disability-adjusted life years. Activation of the renin-angiotensin-aldosterone system is involved in its pathogenesis. The aim of the present study was to examine the effects of telmisartan (40 mg/day), an angiotensin receptor blocker (ARB) in Indian patients with CKD in real-life setting. Method: This was a prospective observational study. Fifty-six patients (>18 years) diagnosed with CKD were enrolled into the study...
2016: Journal of drug assessment
https://www.readbyqxmd.com/read/27974398/safety-and-immunogenicity-of-the-recombinant-mycobacterium-bovis-bcg-vaccine-vpm1002-in-hiv-unexposed-newborn-infants-in-south-africa
#13
André G Loxton, Julia K Knaul, Leander Grode, Andrea Gutschmidt, Christiane Meller, Bernd Eisele, Hilary Johnstone, Gian van der Spuy, Jeroen Maertzdorf, Stefan H E Kaufmann, Anneke C Hesseling, Gerhard Walzl, Mark F Cotton
Tuberculosis is a global threat to which infants are especially vulnerable. Effective vaccines are required to protect infants from this devastating disease. VPM1002, a novel recombinant Mycobacterium bovis bacillus Calmette-Guérin (BCG) vaccine previously shown to be safe and immunogenic in adults, was evaluated for safety in its intended target population, namely, newborn infants in a region with high prevalence of tuberculosis. A total of 48 newborns were vaccinated intradermally with VPM1002 (n = 36) or BCG Danish strain (n = 12) in a phase II open-labeled, randomized trial with a 6-month follow-up period...
February 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/27970147/tct-762-renal-denervation-treatment-with-the-symplicity-spyral-multielectrode-catheter-6-month-safety-and-blood-pressure-outcomes-from-the-global-symplicity-registry
#14
Michael Böhm, Nicole Brilakis, Giuseppe Mancia, Krzysztof Narkiewicz, Luis Ruilope, Markus Schlaich, Felix Mahfoud
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27968887/infection-prevention-with-natural-protein-based-coating-on-the-surface-of-foley-catheters-a-randomised-controlled-clinical-trial
#15
Peng Zhao, Qijing Chen, Chao Lin, Zhaofen Lin, Liang Chang, Xiaoping Shao, Yueming Li, Jiangong Zhang, Zhongpeng Fan, Xuejun Wen
BACKGROUND: Health-care-associated infections characterised by antibiotic drug resistance are a global medical challenge that claims billions of dollars of health-care expenditure. Bacterial adhesion and subsequent formation of biofilms on catheters and tubes are the primary mechanisms through which these infections are initiated and propagated. We tested the efficacy and safety for clinical treatment of a coating based on natural protein, in which immunogenicity was eliminated through physical plasticising, applied to the surfaces of medical devices to inhibit bacterial adhesion...
October 2016: Lancet
https://www.readbyqxmd.com/read/27957384/mitigating-the-risk-of-transfusion-transmitted-dengue-in-australia
#16
Kelly Rooks, Clive R Seed, Jesse J Fryk, Catherine A Hyland, Robert J Harley, Jerry A Holmberg, Denese C Marks, Robert L P Flower, Helen M Faddy
Dengue viruses (DENV 1-4) are a risk to transfusion safety, with several transfusion-transmitted (TT) cases reported globally. DENV 1-4 are endemic in over 100 countries, with seasonal outbreaks occurring in northeastern Australia. To mitigate TT-DENV risk in Australia, fresh blood components are not manufactured from donors returning from any area (domestic/overseas) with known dengue transmission. Alternatively, TT-DENV risk may be mitigated using an appropriate blood donor screening assay. We aimed to determine the rate of dengue infection in donors during dengue outbreaks in Australia...
2016: Journal of Blood Transfusion
https://www.readbyqxmd.com/read/27906840/renal-artery-denervation-for-treatment-of-patients-with-self-reported-obstructive-sleep-apnea-and-resistant-hypertension-results-from-the-global-symplicity-registry
#17
Dominik Linz, Giuseppe Mancia, Felix Mahfoud, Krzysztof Narkiewicz, Luis Ruilope, Markus Schlaich, Ingrid Kindermann, Roland E Schmieder, Sebastian Ewen, Bryan Williams, Michael Böhm
BACKGROUND: Sleep-disordered breathing, predominantly obstructive sleep apnea (OSA), is highly prevalent in patients with hypertension. OSA may underlie the progression to resistant hypertension, partly due to increased activation of the sympathetic nervous system. This analysis of patients with and without OSA evaluated the blood pressure (BP)-lowering effect of sympathetic modulation by renal denervation (RDN) in a real-world setting. METHODS: The Global SYMPLICITY Registry (NCT01534299) is a prospective, open-label, multicenter registry conducted worldwide to evaluate the safety and effectiveness of RDN in patients with uncontrolled hypertension...
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27902833/evaluation-of-ischemic-and-bleeding-risks-associated-with-2-parenteral-antiplatelet-strategies-comparing-cangrelor-with-glycoprotein-iib-iiia-inhibitors-an-exploratory-analysis-from-the-champion-trials
#18
Muthiah Vaduganathan, Robert A Harrington, Gregg W Stone, Efthymios N Deliargyris, Ph Gabriel Steg, C Michael Gibson, Christian W Hamm, Matthew J Price, Alberto Menozzi, Jayne Prats, Steven Elkin, Kenneth W Mahaffey, Harvey D White, Deepak L Bhatt
Importance: In the context of contemporary pharmacotherapy, optimal antiplatelet management with percutaneous coronary intervention (PCI) has not been well established. Objective: To compare the ischemic and bleeding risks associated with glycoprotein IIb/IIIa inhibitors (GPIs) and a potent P2Y12 antagonist, cangrelor, in patients undergoing PCI. Design, Setting, and Participants: An exploratory analysis of pooled patient-level data from the 3 phase 3 Cangrelor vs Standard Therapy to Achieve Optimal Management of Platelet Inhibition (CHAMPION PCI, CHAMPION PLATFORM, and CHAMPION PHOENIX) trials of patients undergoing elective or nonelective PCI...
February 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/27870740/patient-blood-management-an-international-perspective
#19
Quentin Eichbaum, Michael Murphy, Yu Liu, Isaac Kajja, Ludhmila Abrahao Hajjar, Cees Th Smit Sibinga, Hua Shan
This article describes practices in patient blood management (PBM) in 4 countries on different continents that may provide insights for anesthesiologists and other physicians working in global settings. The article has its foundation in the proceedings of a session at the 2014 AABB annual meeting during which international experts from England, Uganda, China, and Brazil presented the programs and implementation strategies in PBM developed in their respective countries. To systematize the review and enhance the comparability between these countries on different continents, authors were requested to respond to the same set of 6 key questions with respect to their country's PBM program(s)...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27857152/inactivation-of-hcv-and-hiv-by-microwave-a-novel-approach-for-prevention-of-virus-transmission-among-people-who-inject-drugs
#20
Anindya Siddharta, Stephanie Pfaender, Angelina Malassa, Juliane Doerrbecker, Anggakusuma, Michael Engelmann, Boya Nugraha, Joerg Steinmann, Daniel Todt, Florian W R Vondran, Pedro Mateu-Gelabert, Christine Goffinet, Eike Steinmann
Hepatitis C virus (HCV) and human immunodeficiency virus (HIV-1) transmissions among people who inject drugs (PWID) continue to pose a challenging global health problem. Here, we aimed to analyse a universally applicable inactivation procedure, namely microwave irradiation, as a safe and effective method to reduce the risk of viral transmission. The exposure of HCV from different genotypes to microwave irradiation resulted in a significant reduction of viral infectivity. Furthermore, microwave irradiation reduced viral infectivity of HIV-1 and of HCV/HIV-1 suspensions indicating that this inactivation may be effective at preventing co-infections...
November 18, 2016: Scientific Reports
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