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Withdrawal of technology

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https://www.readbyqxmd.com/read/29211031/frequency-dependent-multi-well-cardiotoxicity-screening-enabled-by-optogenetic-stimulation
#1
Susanne Rehnelt, Daniela Malan, Krisztina Juhasz, Benjamin Wolters, Leo Doerr, Matthias Beckler, Ralf Kettenhofen, Heribert Bohlen, Tobias Bruegmann, Philipp Sasse
Side effects on cardiac ion channels causing lethal arrhythmias are one major reason for drug withdrawals from the market. Field potential (FP) recording from cardiomyocytes, is a well-suited tool to assess such cardiotoxic effects of drug candidates in preclinical drug development, but it is currently limited to the spontaneous beating of the cardiomyocytes and manual analysis. Herein, we present a novel optogenetic cardiotoxicity screening system suited for the parallel automated frequency-dependent analysis of drug effects on FP recorded from human-induced pluripotent stem cell-derived cardiomyocytes...
December 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29208190/preventing-blood-borne-virus-infection-in-people-who-inject-drugs-in-the-uk-systematic-review-stakeholder-interviews-psychosocial-intervention-development-and-feasibility-randomised-controlled-trial
#2
Gail Gilchrist, Davina Swan, April Shaw, Ada Keding, Sarah Towers, Noel Craine, Alison Munro, Elizabeth Hughes, Steve Parrott, Noreen Mdege, John Strang, Avril Taylor, Judith Watson
BACKGROUND: Opioid substitution therapy and needle exchanges have reduced blood-borne viruses (BBVs) among people who inject drugs (PWID). Some PWID continue to share injecting equipment. OBJECTIVES: To develop an evidence-based psychosocial intervention to reduce BBV risk behaviours and increase transmission knowledge among PWID, and conduct a feasibility trial among PWID comparing the intervention with a control. DESIGN: A pragmatic, two-armed randomised controlled, open feasibility trial...
November 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29204275/fractography-of-clinically-fractured-implant-supported-dental-computer-aided-design-and-computer-aided-manufacturing-crowns
#3
Ulrich Lohbauer, Renan Belli, Marco S Cune, Ulf Schepke
Today, a substantial part of the dental crown production uses computer-aided design and computer-aided manufacturing (CAD/CAM) technology. A recent step in restorative dentistry is the replacement of natural tooth structure with pre-polymerized and machined resin-based methacrylic polymers. Recently, a new CAD/CAM composite was launched for the crown indication in the load-bearing area, but the clinical reality forced the manufacturer to withdraw this specific indication. In parallel, a randomized clinical trial of CAD/CAM composite crowns luted on zirconia implant abutments revealed a high incidence of failure within the first year of service...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/29201151/complete-genome-sequences-of-clostridium-perfringens-del1-strain-isolated-from-chickens-affected-by-necrotic-enteritis
#4
Charles Li, Xianghe Yan, Hyun S Lillehoj
Background: Clostridium perfringens is ubiquitous in nature. It is a normal inhabitant in the intestinal tract of animals and humans. As the primary etiological agent of gas gangrene, necrosis and bacteremia, C. perfringens causes food poisoning, necrotic enteritis (NE), and even death. Epidemiology research has indicated that the increasing incidence of NE in poultry is associated with the withdrawal of in-feed antibiotic growth promoters in poultry production in response to government regulations...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/29169373/the-treatment-in-morning-versus-evening-time-study-analysis-of-recruitment-follow-up-and-retention-rates-post-recruitment
#5
David A Rorie, Robert W V Flynn, Isla S Mackenzie, Thomas M MacDonald, Amy Rogers
BACKGROUND: The use of information technology (IT) is now the preferred method of capturing and storing clinical research data. The Treatment In Morning versus Evening (TIME) study predominantly uses electronic data capture and IT to compare morning dosing of hypertensive medication against evening dosing. Registration, consent, participant demographics and follow-up data are all captured via the study website. The aim of this article is to assess the success of the TIME methodology compared with similar studies...
November 23, 2017: Trials
https://www.readbyqxmd.com/read/29132260/the-psychological-and-social-consequences-of-single-sided-deafness-in-adulthood
#6
Laura Lucas, Roulla Katiri, Pádraig Thomas Kitterick
OBJECTIVES: This study examined the subjective psychological and social effects of highly asymmetric hearing loss (single-sided deafness [SSD]) in adults. DESIGN: Three group interviews were conducted using the critical incident technique and analysed using an inductive thematic analysis. STUDY SAMPLE: Eight adults with a clinical diagnosis of a moderately severe hearing loss or greater in one ear and normal or near-normal hearing in the other ear...
November 13, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/29129064/impacts-of-combined-cooling-heating-and-power-systems-and-rainwater-harvesting-on-water-demand-carbon-dioxide-and-nox-emissions-for-atlanta
#7
Jean-Ann James, Sangwoo Sung, Hyunju Jeong, Osvaldo Alejandro Broesicke, Steve French, Duo Li, John C Crittenden
The purpose of this study is to explore the potential water, CO2 and NOx emission, and cost savings that the deployment of decentralized water and energy technologies within two urban growth scenarios can achieve. We assess the effectiveness of urban growth, technological, and political strategies to reduce these burdens in the 13-county Atlanta metropolitan region. The urban growth between 2005 and 2030 was modeled for a business as usual (BAU) scenario and a more compact growth (MCG) scenario. We considered combined cooling, heating and power (CCHP) systems using microturbines for our decentralized energy technology and rooftop rainwater harvesting and low flow fixtures for the decentralized water technologies...
November 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29123362/lessons-from-practice-designing-tools-to-facilitate-individualized-support-for-quitting-smoking
#8
Arpita Bhattacharya, Roger Vilardaga, Julie A Kientz, Sean A Munson
Many health care providers, with a variety of trainings, counsel clients on quitting smoking on a day-to-day basis. In their clinical practice, they draw from and adapt guidelines and research-based strategies to fit individual client situations and challenges. Designers of technologies to support quitting smoking can learn from these real world practices to create tools that better adapt to individual differences. We present findings from interviews with 28 providers with diverse experiences in smoking cessation counselling...
2017: ACM Transactions on Computer-human Interaction: a Publication of the Association for Computing Machinery
https://www.readbyqxmd.com/read/29121162/the-effect-of-adaptive-nonlinear-frequency-compression-on-phoneme-perception
#9
Danielle Glista, Marianne Hawkins, Andrea Bohnert, Julia Rehmann, Jace Wolfe, Susan Scollie
Purpose: This study implemented a fitting method, developed for use with frequency lowering hearing aids, across multiple testing sites, participants, and hearing aid conditions to evaluate speech perception with a novel type of frequency lowering. Method: A total of 8 participants, including children and young adults, participated in real-world hearing aid trials. A blinded crossover design, including posttrial withdrawal testing, was used to assess aided phoneme perception...
November 9, 2017: American Journal of Audiology
https://www.readbyqxmd.com/read/29105621/adalimumab-etanercept-and-ustekinumab-for-treating-plaque-psoriasis-in-children-and-young-people-systematic-review-and-economic-evaluation
#10
Ana Duarte, Teumzghi Mebrahtu, Pedro Saramago Goncalves, Melissa Harden, Ruth Murphy, Stephen Palmer, Nerys Woolacott, Mark Rodgers, Claire Rothery
BACKGROUND: Psoriasis is a chronic inflammatory disease that predominantly affects the skin. Adalimumab (HUMIRA®, AbbVie, Maidenhead, UK), etanercept (Enbrel®, Pfizer, New York, NY, USA) and ustekinumab (STELARA®, Janssen Biotech, Inc., Titusville, NJ, USA) are the three biological treatments currently licensed for psoriasis in children. OBJECTIVE: To determine the clinical effectiveness and cost-effectiveness of adalimumab, etanercept and ustekinumab within their respective licensed indications for the treatment of plaque psoriasis in children and young people...
November 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29101093/understanding-older-adult-s-technology-adoption-and-withdrawal-for-elderly-care-and-education-mixed-method-analysis-from-national-survey
#11
Ching-Ju Chiu, Chia-Wen Liu
BACKGROUND: Elderly adults have comprised the fastest growing population adopting the Internet and computer technology over the past decade. However, how their experiences can shed light on elderly learning theory has not been examined much in the literature. OBJECTIVE: This study investigated the factors and reasons associated with Internet adoption and withdrawal among older adults in Taiwan, and if any gender differences exist in this context. METHODS: Data on participants aged 50 years and older from the nationally representative "Digital Opportunity Survey on Individuals and Households in Taiwan," who did not use the Internet in 2005 but adopted it in 2007 (n=1548), and those who reported using Internet in 2011 but then withdrew (n=1575), were analyzed...
November 3, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29100944/regulatory-dendritic-cells-for-promotion-of-liver-transplant-operational-tolerance-rationale-for-a-clinical-trial-and-accompanying-mechanistic-studies
#12
REVIEW
Angus W Thomson, Abhinav Humar, Fadi G Lakkis, Diana M Metes
Dendritic cells (DC) are rare, bone marrow (BM)-derived innate immune cells that critically maintain self-tolerance in the healthy steady-state. Regulatory DC (DCreg) with capacity to suppress allograft rejection and promote transplant tolerance in pre-clinical models can readily be generated from BM precursors or circulating blood monocytes. These DCreg enhance allograft survival via various mechanisms, including promotion of regulatory T cells. In non-human primates receiving minimal immunosuppressive drug therapy (IS), infusion of DCreg of donor origin, one week before transplant, safely prolongs renal allograft survival and selectively attenuates anti-donor CD8(+) memory T cell responses in the early post-transplant period...
October 31, 2017: Human Immunology
https://www.readbyqxmd.com/read/29098669/similarities-and-differences-in-neuroimaging
#13
Yan-Kun Sun, Yan Sun, Xiao Lin, Lin Lu, Jie Shi
Addiction is a chronically relapsing disease characterized by drug intoxication, craving, bingeing, and withdrawal with loss of control. An increasing number of studies have indicated that non-substance addiction, like internet addiction and pathological gambling, share clinical, phenomenological, and biological features with substance addiction. With the development of imaging technology in the past three decades, neuroimaging studies have provided information on the neurobiological effects, and revealed neurochemical and functional changes in the brains of both drug-addicted and non-substance addicted subjects...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29043540/between-quality-of-life-and-hope-attitudes-and-beliefs-of-muslim-women-toward-withholding-and-withdrawing-life-sustaining-treatments
#14
REVIEW
Chaïma Ahaddour, Stef Van den Branden, Bert Broeckaert
The technological advances in medicine, including prolongation of life, have constituted several dilemmas at the end of life. In the context of the Belgian debates on end-of-life care, the views of Muslim women remain understudied. The aim of this article is fourfold. First, we seek to describe the beliefs and attitudes of middle-aged and elderly Moroccan Muslim women toward withholding and withdrawing life-sustaining treatments. Second, we aim to identify whether differences are observable among middle-aged and elderly women's attitudes toward withholding and withdrawing life-sustaining treatments...
October 17, 2017: Medicine, Health Care, and Philosophy
https://www.readbyqxmd.com/read/28967541/minors-and-young-adults-experiences-of-the-research-consent-process-in-a-phase-ii-safety-study-of-pre-exposure-prophylaxis-for-hiv
#15
Amelia S Knopf, Mary A Ott, Nancy Liu, Bill G Kapogiannis, Gregory D Zimet, J Dennis Fortenberry, Sybil G Hosek
PURPOSE: There is a persistent HIV epidemic among sexual and gender minority adolescents in the U.S. Oral pre-exposure prophylaxis (PrEP) is an efficacious prevention strategy, but not yet approved for minors. Minors' access to biomedical HIV prevention technologies is impeded by the ethical and legal complexities of consent to research participation. We explore autonomous consent and study experiences among minor and adult participants in Project PrEPare, a Phase II safety study of PrEP for HIV prevention...
September 26, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28966282/triplex-and-duplex-forming-abilities-of-oligonucleotides-containing-2-deoxy-5-trifluoromethyluridine-and-2-deoxy-5-trifluoromethylcytidine
#16
Yuta Ito, Misaki Matsuo, Takashi Osawa, Yoshiyuki Hari
A facile synthesis of 2'-deoxy-5-trifluoromethyluridine and 2'-deoxy-5-trifluoromethylcytidine phosphoramidites from commercially available 2'-deoxyuridine and 2'-deoxycytidine was achieved, respectively. The obtained phosphoramidites were incorporated into oligonucleotides, and their binding affinity to double-stranded DNA (dsDNA) and single-stranded RNA (ssRNA) was evaluated by UV-melting experiments. The triplex-forming abilities of oligonucleotides including 5-trifluoromethylpyrimidine nucleobases with dsDNA were decreased...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28959846/-analgesic-effect-and-central-mechanisms-of-cq-prescription-on-cancer-invasion-induced-mirror-image-pain-in-model-mice
#17
Yu-Mao Jiang, Dan-Dan Sun, Zhi-Guo Wang, Tao Li, Xiao-Liang Zhao, Yue Jiao, Yang Liu, Yu-Juan Li, Jing-Feng Ouyang, Dan-Qiao Wang
This study aimed to analyze the analgesic effect and related central mechanisms of CQ prescription on cancer invasion induced mirror image pain (CIIMIP)in model mice.In the study, male BALB/c mice were randomly divided into normal group, operation control group (injected with 0.2 mL inactivated S180 sarcoma cell sap), model group (injected with 0.2 mL S180 sarcoma cell sap on the right leg near the greater trochanter of femur) and CQ prescription low dose group (intraperitoneally injected with CQ prescription 100 mg•kg⁻¹ on the basis of model mice), CQ prescription middle dose group (intraperitoneally injected with CQ prescription 150 mg•kg⁻¹ on the basis of model mice), and CQ prescription high dose group (intraperitoneally injected with CQ prescription 200 mg•kg⁻¹ on the basis of model mice)...
February 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28950720/biomarkers-of-adverse-drug-reactions
#18
Daniel F Carr, Munir Pirmohamed
Adverse drug reactions can be caused by a wide range of therapeutics. Adverse drug reactions affect many bodily organ systems and vary widely in severity. Milder adverse drug reactions often resolve quickly following withdrawal of the casual drug or sometimes after dose reduction. Some adverse drug reactions are severe and lead to significant organ/tissue injury which can be fatal. Adverse drug reactions also represent a financial burden to both healthcare providers and the pharmaceutical industry. Thus, a number of stakeholders would benefit from development of new, robust biomarkers for the prediction, diagnosis, and prognostication of adverse drug reactions...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28937910/loneliness-and-social-internet-use-pathways-to-reconnection-in-a-digital-world
#19
Rebecca Nowland, Elizabeth A Necka, John T Cacioppo
With the rise of online social networking, social relationships are increasingly developed and maintained in a digital domain. Drawing conclusions about the impact of the digital world on loneliness is difficult because there are contradictory findings, and cross-sectional studies dominate the literature, making causation difficult to establish. In this review, we present our theoretical model and propose that there is a bidirectional and dynamic relationship between loneliness and social Internet use. When the Internet is used as a way station on the route to enhancing existing relationships and forging new social connections, it is a useful tool for reducing loneliness...
September 1, 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28859674/identifying-research-priorities-for-effective-retention-strategies-in-clinical-trials
#20
Anna Kearney, Anne Daykin, Alison R G Shaw, Athene J Lane, Jane M Blazeby, Mike Clarke, Paula Williamson, Carrol Gamble
BACKGROUND: The failure to retain patients or collect primary-outcome data is a common challenge for trials and reduces the statistical power and potentially introduces bias into the analysis. Identifying strategies to minimise missing data was the second highest methodological research priority in a Delphi survey of the Directors of UK Clinical Trial Units (CTUs) and is important to minimise waste in research. Our aim was to assess the current retention practices within the UK and priorities for future research to evaluate the effectiveness of strategies to reduce attrition...
August 31, 2017: Trials
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