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https://www.readbyqxmd.com/read/28549377/biocompatibility-of-liposome-nanocarriers-in-the-rat-inner-ear-after-intratympanic-administration
#1
Jing Zou, Hao Feng, Rohit Sood, Paavo K J Kinnunen, Ilmari Pyykko
Liposome nanocarriers (LPNs) are potentially the future of inner ear therapy due to their high drug loading capacity and efficient uptake in the inner ear after a minimally invasive intratympanic administration. However, information on the biocompatibility of LPNs in the inner ear is lacking. The aim of the present study is to document the biocompatibility of LPNs in the inner ear after intratympanic delivery. LPNs with or without gadolinium-tetra-azacyclo-dodecane-tetra-acetic acid (Gd-DOTA) were delivered to the rats through transtympanic injection...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28548882/finding-conducting-and-nurturing-science-a-virologist-s-memoir
#2
Anna Marie Ann Skalka Skalka
My laboratory investigations have been driven by an abiding interest in understanding the consequences of genetic rearrangement in evolution and disease, and in using viruses to elucidate fundamental mechanisms in biology. Starting with bacteriophages and moving to the retroviruses, my use of the tools of genetics, molecular biology, biochemistry, and biophysics has spanned more than half a century-from the time when DNA structure was just discovered to the present day of big data and epigenetics. Both riding and contributing to the successive waves of technology, my laboratory has elucidated fundamental mechanisms in DNA replication, repair, and recombination...
May 26, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28548464/control-of-cell-death-and-mitochondrial-fission-by-erk1-2-map-kinase-signalling
#3
REVIEW
Simon J Cook, Kate Stuart, Rebecca Gilley, Matthew J Sale
The ERK1/2 signalling pathway is best known for its role in connecting activated growth factor receptors to changes in gene expression due to activated ERK1/2 entering the nucleus and phosphorylating transcription factors. However, active ERK1/2 also translocate to a variety of other organelles including the endoplasmic reticulum, endosomes, golgi and mitochondria to access specific substrates and influence cell physiology. In this article we review two aspects of ERK1/2 signalling at the mitochondria that are involved in regulating cell fate decisions...
May 26, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28548247/market-for-artemether-lumefantrine-to-treat-childhood-malaria-in-a-district-of-southern-mozambique
#4
Sergi Alonso, Khátia Munguambe, Elisa Sicuri
Malaria is one of the leading causes of death in sub-Saharan Africa. Artemisinin-based combination therapies are used as first-line treatment drugs, but their market is far from competitive. Market failures include limited availability, low quality, lack of information, and high costs of access. We estimated the theoretical demand for one of the most common artemisinin-based combination therapies, artemether-lumefantrine (AL), and its determinants among caregivers of children with malaria seeking care at public health facilities, thus, entitled to receive drugs for free, in southern Mozambique (year 2012)...
May 26, 2017: Health Economics
https://www.readbyqxmd.com/read/28548193/-therapeutic-potential-of-cannabis-sativa
#5
Marcia Avello L, Edgar Pastene N, Pola Fernández R, Pia Córdova M
Cannabis sativa (marihuana) is considered an illicit drug due to its psychoactive properties. Recently, the Chilean government opened to the use cannabis in the symptomatic treatment of some patients. The biological effects of cannabis render it useful for the complementary treatment of specific clinical situations such as chronic pain. We retrieved scientific information about the analgesic properties of cannabis, using it as a safe drug. The drug may block or inhibit the transmission of nervous impulses at different levels, an effect associated with pain control...
March 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28547805/quality-and-impact-of-eviq-cancer-treatments-online-www-eviq-org-au-the-medical-oncologist-s-perspective
#6
Lydia P Y Loke, Tina Y T Chen, Craig R Lewis, Robyn L Ward, Shelley A Rushton, Jeremy D Shapiro
INTRODUCTION: eviQ Cancer Treatments Online is a free, web-based resource providing access to over 600 evidence-based treatment protocols in medical oncology, radiation oncology, hematology and cancer genetics. With over 60 000 registrants from 148 countries, eviQ is widely used by cancer clinicians globally. The aim of this study was to examine the perceived quality of eviQ by Australian medical oncologists, the impact it had on their knowledge and practice, and the effect it had on their patients...
May 25, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28546772/the-impact-of-socioeconomic-status-and-multimorbidity-on-mortality-a-population-based-cohort-study
#7
Nikoline Lund Jensen, Henrik Søndergaard Pedersen, Mogens Vestergaard, Stewart W Mercer, Charlotte Glümer, Anders Prior
OBJECTIVE: Multimorbidity (MM) is more prevalent among people of lower socioeconomic status (SES), and both MM and SES are associated with higher mortality rates. However, little is known about the relationship between SES, MM, and mortality. This study investigates the association between educational level and mortality, and to what extent MM modifies this association. METHODS: We followed 239,547 individuals invited to participate in the Danish National Health Survey 2010 (mean follow-up time: 3...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28546583/hybridizing-feature-selection-and-feature-learning-approaches-in-qsar-modeling-for-drug-discovery
#8
Ignacio Ponzoni, Víctor Sebastián-Pérez, Carlos Requena-Triguero, Carlos Roca, María J Martínez, Fiorella Cravero, Mónica F Díaz, Juan A Páez, Ramón Gómez Arrayás, Javier Adrio, Nuria E Campillo
Quantitative structure-activity relationship modeling using machine learning techniques constitutes a complex computational problem, where the identification of the most informative molecular descriptors for predicting a specific target property plays a critical role. Two main general approaches can be used for this modeling procedure: feature selection and feature learning. In this paper, a performance comparative study of two state-of-art methods related to these two approaches is carried out. In particular, regression and classification models for three different issues are inferred using both methods under different experimental scenarios: two drug-like properties, such as blood-brain-barrier and human intestinal absorption, and enantiomeric excess, as a measurement of purity used for chiral substances...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28546136/an-ecological-momentary-intervention-to-reduce-alcohol-consumption-in-young-adults-delivered-during-drinking-events-protocol-for-a-pilot-randomized-controlled-trial
#9
Cassandra Jc Wright, Paul M Dietze, Paul A Agius, Emmanuel Kuntsche, Robin Room, Michael Livingston, Margaret Hellard, Megan Sc Lim
BACKGROUND: Risky drinking is a significant public health issue in young Australian adults. Brief interventions are one of few effective methods of reducing risky drinking but are time and cost intensive; innovative methods of delivery are therefore of interest. Mobile phones offer new opportunities to collect data and intervene during risky drinking events. Mobile phones have successfully been used for delivery of alcohol-related brief interventions and data collection but not in combination with or during drinking events...
May 25, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28546037/developing-alternative-over-the-counter-medicine-label-formats-how-do-they-compare-when-evaluated-by-consumers
#10
Vivien Tong, David K Raynor, Parisa Aslani
BACKGROUND: In recent years, the Australian Therapeutic Goods Administration (TGA) has proposed implementing a standardized over-the-counter (OTC) medicine label. However, there were mixed consumer opinions regarding a label proposed in 2012 and limited evidence demonstrating the usability of the revised (2014) format. OBJECTIVE: To develop and examine the usability of alternative OTC medicine label formats for standardization, and explore consumer perspectives on the labels...
March 9, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28545583/private-sector-role-readiness-and-performance-for-malaria-case-management-in-uganda-2015
#11
Henry Kaula, Peter Buyungo, Jimmy Opigo
BACKGROUND: Several interventions have been put in place to promote access to quality malaria case management services in Uganda's private sector, where most people seek treatment. This paper describes evidence using a mixed-method approach to examine the role, readiness and performance of private providers at a national level in Uganda. These data will be useful to inform strategies and policies for improving malaria case management in the private sector. METHODS: The ACTwatch national anti-malarial outlet survey was conducted concurrently with a fever case management study...
May 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28545551/identifying-and-reducing-disparities-in-successful-addiction-treatment-completion-testing-the-role-of-medicaid-payment-acceptance
#12
Erick G Guerrero, Bryan R Garner, Benjamin Cook, Yinfei Kong, William A Vega, Lillian Gelberg
BACKGROUND: Medicaid has become the largest payer of substance use disorder treatment and may enhance access to quality care and reduce disparities. We tested whether treatment programs' acceptance of Medicaid payments was associated with reduced disparities between Mexican Americans and non-Latino Whites. METHODS: We analyzed client and program data from 122 publicly funded treatment programs in 2010 and 112 programs in 2013. These data were merged with information regarding 15,412 adult clients from both periods, of whom we selected only Mexican Americans (n = 7130, 46...
May 25, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28545370/a-systematic-analysis-of-physicochemical-and-adme-properties-of-all-small-molecule-kinase-inhibitors-approved-by-us-fda-from-january-2001-to-october-2015
#13
Zhihong O'Brien, Mehran F Moghaddam
BACKGROUND: During lead identification and optimization, the advancement criteria may be driven based on scientific principles, prior experiences, and/or by examining the path paved by approved drugs. Accessing the discovery data on physicochemical and ADME properties of the approved kinase inhibitors is a monumental task as these are either scattered in the literature or have not been published. OBJECTIVE: Our goals were, 1) to compile the relevant data on all kinase inhibitors approved prior to 2016 for easy access by the biopharmaceutical community, 2) to provide a retrospective analysis to highlight trends and attributes which may have contributed to the "developability" of these drugs, and 3) to ignite focused debates on what constitutes "actionable", "nice-to-have", and unnecessary data...
May 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28545365/role-of-infrared-spectroscopy-and-imaging-in-cancer-diagnosis
#14
Saroj Kumar, Alagiri Srinivasan, Fredrik Nikolajeff
FTIR imaging has been used to diagnose and differentiate the molecular differences between normal and diseased tissues. The differences correspond to the distribution and structure of lipids, proteins, nucleic acids as well as other metabolites. These differences depended on the type and the grade of cancer. The sensitivity of chemotherapy drugs on individual specific was also discussed. Here, we emphasize that FTIR spectroscopy and imaging can be considered as a promising technique and will find its place on the detection of this dreadful disease because of high sensitivity, accuracy and inexpensive technique...
May 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28545202/memantine-inhibits-degradation-of-the-articular-cartilage-extracellular-matrix-induced-by-advanced-glycation-end-products-ages
#15
Jijun Zhao, Yinghao Yu, Zhaofeng Wu, Ling Wang, Wei Li
The accumulation of inflammation and cartilage damage induced by advanced glycation end products (AGEs) are important hallmarks of osteoarthritis (OA). Memantine is a clinically licensed drug used for the treatment of moderate and severe Alzheimer's disease. To date, little information has been reported regarding the effects of memantine on cartilage destruction. In this study, we investigated the protective effects of memantine on AGE-induced degradation of collagen II and aggrecans in human SW1353 chondrocytes...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28545134/structures-of-the-inactive-and-active-states-of-rip2-kinase-inform-on-the-mechanism-of-activation
#16
Erika Pellegrini, Luca Signor, Saurabh Singh, Elisabetta Boeri Erba, Stephen Cusack
Innate immune receptors NOD1 and NOD2 are activated by bacterial peptidoglycans leading to recruitment of adaptor kinase RIP2, which, upon phosphorylation and ubiquitination, becomes a scaffold for downstream effectors. The kinase domain (RIP2K) is a pharmaceutical target for inflammatory diseases caused by aberrant NOD2-RIP2 signalling. Although structures of active RIP2K in complex with inhibitors have been reported, the mechanism of RIP2K activation remains to be elucidated. Here we analyse RIP2K activation by combining crystal structures of the active and inactive states with mass spectrometric characterization of their phosphorylation profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28544560/fatal-intoxication-by-5f-adb-and-diphenidine-detection-quantification-and-investigation-of-their-main-metabolic-pathways-in-human-by-lc-ms-ms-and-lc-q-tofms
#17
Maiko Kusano, Kei Zaitsua, Kentaro Taki, Kazuaki Hisatsune, Jun'ichi Nakajima, Takako Moriyasu, Tomomi Asano, Yumi Hayashi, Hitoshi Tsuchihashi, Akira Ishii
Despite the implementation of the new blanket scheduling system in 2013, new psychoactive substance (NPS) abuse remains a serious social concern in Japan. We present a fatal intoxication case involving 5F-ADB (methyl 2-[1-(5-fluoropentyl)-1H-indazole-3-carboxamido]-3,3-dimethylbutanoate) and diphenidine. Postmortem blood screening by liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/Q-TOFMS) in the information dependent acquisition (IDA) mode only detected diphenidine. Further urinary screening using an in-house database containing new NPS and metabolites detected not only diphenidine but also possible 5F-ADB metabolites; subsequent targeted screening by LC/tandem mass spectrometry (LC/MS/MS) allowed for the detection of very low level of unchanged 5F-ADB in postmortem heart blood...
May 21, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28544443/development-of-a-clinical-trials-version-of-the-impact-of-weight-on-quality-of-life-lite-questionnaire-iwqol-lite-clinical-trials-version-results-from-two-qualitative-studies
#18
R L Kolotkin, C M Ervin, H H Meincke, L Højbjerre, S E Fehnel
Existing measures of health-related quality of life and patient functioning in obesity, such as the Impact of Weight on Quality of Life-Lite (IWQOL-Lite) questionnaire, lack the developmental rigour required by the Food and Drug Administration (FDA) to support product labelling. Two iterative qualitative studies informed development of a version of the IWQOL-Lite questionnaire optimized for use in obesity clinical trials: the IWQOL-Lite Clinical Trials Version. Study 1 included 42 patients with body mass index (BMI) ≥ 30 kg m(-2) (obesity); and Study 2 included 29 patients with type 2 diabetes and BMI ≥ 27 kg m(-2) (overweight)...
May 22, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28544415/inertial-microfluidic-cell-stretcher-imcs-fully-automated-high-throughput-and-near-real-time-cell-mechanotyping
#19
Yanxiang Deng, Steven P Davis, Fan Yang, Kevin S Paulsen, Maneesh Kumar, Rebecca Sinnott DeVaux, Xianhui Wang, Douglas S Conklin, Assad Oberai, Jason I Herschkowitz, Aram J Chung
Mechanical biomarkers associated with cytoskeletal structures have been reported as powerful label-free cell state identifiers. In order to measure cell mechanical properties, traditional biophysical (e.g., atomic force microscopy, micropipette aspiration, optical stretchers) and microfluidic approaches were mainly employed; however, they critically suffer from low-throughput, low-sensitivity, and/or time-consuming and labor-intensive processes, not allowing techniques to be practically used for cell biology research applications...
May 23, 2017: Small
https://www.readbyqxmd.com/read/28544367/the-diverging-trajectories-of-cannabis-and-tobacco-policies-in-the-united-states-reasons-and-possible-implications
#20
Wayne Hall, Lynn T Kozlowski
AIM: To examine briefly the (i) rationales for two policy proposals in the United States to make it mandatory for cigarettes to contain very low levels of nicotine and to legalize cannabis for recreational use by adults; and (ii) possible lessons that participants in each policy debate may learn from each other. METHOD: We briefly describe the diverging policies towards cannabis and tobacco in the United States, explain and critically analyse their rationales and discuss possible policy lessons...
May 22, 2017: Addiction
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