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https://www.readbyqxmd.com/read/28733956/amyloid-beta-and-tau-as-alzheimer-s-disease-blood-biomarkers-promise-from-new-technologies
#1
REVIEW
Lih-Fen Lue, Andre Guerra, Douglas G Walker
The utility of the levels of amyloid beta (Aβ) peptide and tau in blood for diagnosis, drug development, and assessment of clinical trials for Alzheimer's disease (AD) has not been established. The lack of availability of ultra-sensitive assays is one critical issue that has impeded progress. The levels of Aβ species and tau in plasma and serum are much lower than levels in cerebrospinal fluid. Furthermore, plasma or serum contain high levels of assay-interfering factors, resulting in difficulties in the commonly used singulex or multiplex ELISA platforms...
July 2017: Neurology and Therapy
https://www.readbyqxmd.com/read/28731889/stent-thrombosis-with-bioabsorbable-polymer-drug-eluting-stents-insights-from-the-food-and-drug-administration-database
#2
Abdur R Khan, Avnish Tripathi, Talha A Farid, Bilal Abaid, Deepak L Bhatt, Jon R Resar, Michael P Flaherty
BACKGROUND: SYNERGY, a bioabsorbable polymer-based, everolimus-eluting stent (BP-DES), recently received regulatory approval in the USA for use in percutaneous coronary interventions. Yet, information on the safety of BP-DES in routine clinical practice is limited. Our aim was to compare the safety of the recently approved BP-DES with current durable polymer drug-eluting stents (DP-DES) by analyzing adverse events, namely, stent thrombosis (ST), reported to the Manufacturer and User Facility Device Experience (MAUDE) database...
July 20, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28729138/spatial-working-memory-in-the-touchscreen-operant-platform-is-disrupted-in-female-rats-by-ovariectomy-but-not-estrous-cycle
#3
Alyssa M Sbisa, Andrea Gogos, Maarten van den Buuse
Learning and memory deficits have been described in rats and mice after ovariectomy (OVX) and across the estrous cycle. Preclinical researchers therefore often avoid using female animals and, consequently, a large male bias exists in the preclinical cognitive literature. In the present study we examined the role of sex hormones in the touchscreen operant platform using the spatial working memory trial unique nonmatching-to-location (TUNL) task. Twenty-nine Long Evans rats were trained to acquire the TUNL task including three incremental spatial separations (S0, S1, S2)...
July 17, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28728577/integrating-data-from-randomized-controlled-trials-and-observational-studies-to-predict-the-response-to-pregabalin-in-patients-with-painful-diabetic-peripheral-neuropathy
#4
Joe Alexander, Roger A Edwards, Alberto Savoldelli, Luigi Manca, Roberto Grugni, Birol Emir, Ed Whalen, Stephen Watt, Marina Brodsky, Bruce Parsons
BACKGROUND: More patient-specific medical care is expected as more is learned about variations in patient responses to medical treatments. Analytical tools enable insights by linking treatment responses from different types of studies, such as randomized controlled trials (RCTs) and observational studies. Given the importance of evidence from both types of studies, our goal was to integrate these types of data into a single predictive platform to help predict response to pregabalin in individual patients with painful diabetic peripheral neuropathy (pDPN)...
July 20, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28727419/next-generation-lipids-in-rna-interference-therapeutics
#5
Stephanie Rietwyk, Dan Peer
RNA is emerging as a potential therapeutic modality for the treatment of incurable diseases. Despite intense research, the advent to clinical utility remains compromised by numerous biological barriers, hence there is a need for sophisticated delivery vehicles. In this aspect, lipid nanoparticles (LNP) are the most advanced platform among non-viral vectors for gene delivery. In this review, we critically review the literature and the reasons for ineffective delivery beyond the liver. We discuss the toxicity issues associated with permanently charged cationic lipids, and then turn our attention to next-generation ionizable cationic lipids...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28725381/extending-bioacoustic-monitoring-of-birds-aloft-through-flight-call-localization-with-a-three-dimensional-microphone-array
#6
Phillip M Stepanian, Kyle G Horton, David C Hille, Charlotte E Wainwright, Phillip B Chilson, Jeffrey F Kelly
Bioacoustic localization of bird vocalizations provides unattended observations of the location of calling individuals in many field applications. While this technique has been successful in monitoring terrestrial distributions of calling birds, no published study has applied these methods to migrating birds in flight. The value of nocturnal flight call recordings can increase with the addition of three-dimensional position retrievals, which can be achieved with adjustments to existing localization techniques...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28725271/normal-foot-loading-parameters-and-repeatability-of-the-footscan%C3%A2-platform-system
#7
Chao Xu, Xin-Xin Wen, Lu-Yu Huang, Lei Shang, Xi-Xia Cheng, Ya-Bo Yan, Wei Lei
BACKGROUND: The Footscan® platform system is one of the most commonly used clinical tools for the measurement of the foot pressure. The present study was designed to assess the repeatability of the system and identify the range of loading parameters observed in the normal foot. METHODS: Measurements were collected from 32 healthy participants, 15 females and 17 males, twice at an interval of 1 week. Peak pressure (PP), contact time (CT), contact area (CA), pressure-time integral (PTI), and maximum force (MaF) were recorded; these parameters were investigated in 10 areas of the foot: medial heel, lateral heel, midfoot, first to fifth metatarsals, hallux, and toes 2-5...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28724365/leflunomide-is-equally-efficacious-and-safe-compared-to-low-dose-rituximab-in-refractory-rheumatoid-arthritis-given-in-combination-with-methotrexate-results-from-a-randomized-double-blind-controlled-clinical-trial
#8
Harindu Wijesinghe, Priyadharshini Galappatthy, Rajiva de Silva, Suranjith L Seneviratne, Ushagowry Saravanamuttu, Preethi Udagama, Melanie Hart, Peter Kelleher, Upul Senerath, Rohini Fernandopulle, Lilani P Weerasekera, Lalith S Wijayaratne
BACKGROUND: The standard dose of rituximab used in rheumatoid arthritis (RA) is 1000 mg but recent studies have shown that low dose (500 mg) is also effective. Efficacy of low dose rituximab in rheumatoid arthritis (RA) refractory to first-line non-biologic Disease Modifying Anti Rheumatic Drugs (DMARDs), compared to leflunomide is unknown. In a tertiary care referral setting, we conducted a randomized, double blind controlled clinical trial comparing the efficacy and safety of low-dose rituximab-methotrexate combination with leflunomide-methotrexate combination...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28722585/school-children-s-intestinal-parasite-and-nutritional-status-1-year-after-complementary-school-garden-nutrition-water-sanitation-and-hygiene-interventions-in-burkina-faso
#9
Séverine Erismann, Serge Diagbouga, Christian Schindler, Peter Odermatt, Astrid M Knoblauch, Jana Gerold, Andrea Leuenberger, Akina Shrestha, Grissoum Tarnagda, Jürg Utzinger, Guéladio Cissé
The potential health benefits of combined agricultural, nutrition, water, sanitation, and hygiene (WASH) interventions are poorly understood. We aimed to determine whether complementary school garden, nutrition, and WASH interventions reduce intestinal parasites and improve school children's nutritional status in two regions of Burkina Faso. A cluster-randomized controlled trial was conducted in the Plateau Central and Center-Ouest regions of Burkina Faso. A total of 360 randomly selected children, aged 8-15 years, had complete baseline and end-line survey data...
July 10, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721305/fully-automated-gmp-production-of-68-ga-ga-do3a-vs-cys-40-exendin-4-for-clinical-use
#10
Irina Velikyan, Ulrika Rosenstrom, Olof Eriksson
[(68)Ga]Ga-DO3A-VS-Cys(40)-Exendin-4/PET-CT targeting glucagon like peptide-1 receptor (GLP-1R) has previously demonstrated its potential clinical value for the detection of insulinomas. The production and accessibility of this radiopharmaceutical is one of the critical factors in realization of clinical trials and routine clinical examinations. Previously, the radiopharmaceutical was prepared manually, however larger scale of clinical trials and healthcare requires automation of the production process in order to limit the operator radiation dose as well as improve tracer manufacturing robustness and on-line documentation for enhanced good manufacturing practice (GMP) compliance...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28718947/relevance-of-bioreactors-and-whole-tissue-cultures-for-the-translation-of-new-therapies-to-humans
#11
Marianna Peroglio, Diana Gaspar, Dimitrios I Zeugolis, Mauro Alini
The purpose of this review is to provide a brief overview of bioreactor-based culture systems as alternatives to conventional two- and three- dimensional counterparts. The role, challenges and future aspirations of bioreactors in the musculoskeletal field (e.g. cartilage, intervertebral disc, tendon and bone) are discussed. Bioreactors, by recapitulating physiological processes, can be used effectively as part of the initial in vitro screening, reducing that way the number of animal required for preclinical assessment, complying with the 3R principles and, in most cases, allowing working with human tissues...
July 18, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28718878/deep-brain-and-cortical-stimulation-for-epilepsy
#12
REVIEW
Mathieu Sprengers, Kristl Vonck, Evelien Carrette, Anthony G Marson, Paul Boon
BACKGROUND: Despite optimal medical treatment, including epilepsy surgery, many epilepsy patients have uncontrolled seizures. Since the 1970s interest has grown in invasive intracranial neurostimulation as a treatment for these patients. Intracranial stimulation includes both deep brain stimulation (DBS) (stimulation through depth electrodes) and cortical stimulation (subdural electrodes). This is an updated version of a previous Cochrane review published in 2014. OBJECTIVES: To assess the efficacy, safety and tolerability of DBS and cortical stimulation for refractory epilepsy based on randomized controlled trials (RCTs)...
July 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28718506/felbamate-as-an-add-on-therapy-for-refractory-partial-epilepsy
#13
REVIEW
Li Li Shi, JianCheng Dong, HengJian Ni, JinSong Geng, Taixiang Wu
BACKGROUND: This review is an update of a previously published review in the Cochrane Database of Systematic Reviews (Issue 7, 2014) on 'Felbamate as an add-on therapy for refractory epilepsy'. Epilepsy is a chronic and disabling neurologic disorder, affecting approximately 1% of the population. Up to 30% of people with epilepsy have seizures that are resistant to currently available drugs. Felbamate is one of the second-generation antiepileptic drugs and we have assessed its effects as an add-on therapy to standard drugs in this review...
July 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28716117/stress-prevention-work-a-study-protocol-for-the-evaluation-of-a-multifaceted-integral-stress-prevention-strategy-to-prevent-employee-stress-in-a-healthcare-organization-a-cluster-controlled-trial
#14
Rianne J A Hoek, Bo M Havermans, Irene L D Houtman, Evelien P M Brouwers, Yvonne F Heerkens, Moniek C Zijlstra-Vlasveld, Johannes R Anema, Allard J van der Beek, Cécile R L Boot
BACKGROUND: Adequate implementation of work-related stress management interventions can reduce or prevent work-related stress and sick leave in organizations. We developed a multifaceted integral stress-prevention strategy for organizations from several sectors that includes a digital platform and collaborative learning network. The digital platform contains a stepwise protocol to implement work-related stress-management interventions. It includes stress screeners, interventions and intervention providers to facilitate access to and the selection of matching work-related stress-management interventions...
July 17, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28714763/effects-of-trial-duration-on-intrasession-reliability-of-single-leg-balance-testing-on-stable-and-unstable-surfaces
#15
Bryan I Riemann, Kelsey Piersol, George J Davies
CONTEXT: Single leg balance testing is a commonly used tool in sports medicine; however, there has been no consensus on trial duration needed to obtain reliable measures. OBJECTIVE: This investigation sought to determine the minimum trial duration required to obtain the highest intrasession single and average trial reliability for single leg balance testing on stable and unstable surfaces using dominant and nondominant limbs. DESIGN: Intrasession reliability...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714673/direct-monitoring-of-exogenous-ghb-in-body-fluids-by-nmr-spectroscopy
#16
Martina Palomino-Schätzlein, Yaoyao Wang, Teodor Parella, Cristina Legido-Quigley, Míriam Pérez-Trujillo
γ-Hydroxybutyric acid (GHB) is a popular drug increasingly associated to cases of drug-facilitated sexual assault (DFSA). Currently, expanding procedures of analysis and having forensic evidence of GHB intake at a long term are mandatory. Up to now, most studies have been performed using GC-MS and LC-MS as analytical platforms, which involve significant manipulation of the sample and, often, indirect measurements. In this work, procedures used in NMR-based metabolomics were applied to a GHB clinical trial on urine and serum...
July 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28713582/distance-learning-strategies-for-weight-management-utilizing-online-social-networks-versus-group-phone-conference-call
#17
Erik A Willis, Amanda N Szabo-Reed, Lauren T Ptomey, Felicia L Steger, Jeffery J Honas, Eyad M Al-Hihi, Robert Lee, Jaehoon Lee, Youngha Oh, Richard A Washburn, Joseph E Donnelly
OBJECTIVE: The increase in technology and online social networks (OSNs) may present healthcare providers with an innovative modality for delivering weight management programmes that could have an impact on health care at the population level. The objective of this study was to evaluate the feasibility and efficacy of using an OSN to deliver a weight loss programme to inform future, large-scale trials. METHODS: Seventy individuals (age = 47 ± 12.4, minority = 24...
June 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/28713407/biorhizome-a-biosynthetic-platform-for-colchicine-biomanufacturing
#18
REVIEW
Ganapathy Sivakumar, Kamran Alba, Gregory C Phillips
Colchicine is one of the oldest plant-based medicines used to treat gout and one of the most important alkaloid-based antimitotic drugs with anticancer potential, which is commercially extracted from Gloriosa superba. Clinical trials suggest that colchicine medication could prevent atrial fibrillation recurrence after cardiac surgery. In addition, therapeutic colchicine is undergoing clinical trials to treat non-diabetic metabolic syndrome and diabetic nephropathy. However, the industrial-scale biomanufacturing of colchicine have not yet been established...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28712616/aripiprazole-lauroxil-compared-with-paliperidone-palmitate-in-patients-with-schizophrenia-an-indirect-treatment-comparison
#19
Chris Cameron, Jacqueline Zummo, Dharmik N Desai, Christine Drake, Brian Hutton, Ahmed Kotb, Peter J Weiden
BACKGROUND: Aripiprazole lauroxil (AL) is a long-acting injectable atypical antipsychotic recently approved for treatment of schizophrenia on the basis of a large-scale trial of two doses of AL versus placebo. There are no direct-comparison studies with paliperidone palmitate (PP; long-acting antipsychotic used most often in acute settings) for the acute psychotic episode. OBJECTIVES: To indirectly compare efficacy and safety of the pivotal AL study with all PP studies meeting indirect comparison criteria...
July 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28710608/vaccine-platform-recombinant-measles-virus
#20
REVIEW
Michael D Mühlebach
The classic development of vaccines is lengthy, tedious, and may not necessarily be successful as demonstrated by the case of HIV. This is especially a problem for emerging pathogens that are newly introduced into the human population and carry the inherent risk of pandemic spread in a naïve population. For such situations, a considerable number of different platform technologies are under development. These are also under development for pathogens, where directly derived vaccines are regarded as too complicated or even dangerous due to the induction of inefficient or unwanted immune responses causing considerable side-effects as for dengue virus...
July 14, 2017: Virus Genes
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