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https://www.readbyqxmd.com/read/28328092/neferine-enhances-the-antitumor-effect-of-mitomycin-c-in-hela-cells-through-the-activation-of-p38-mapk-pathway
#1
Wassim Eid, Wafaa Abdel-Rehim
Current treatment options for patients with cervical cancer are far from desirable, with cervical cancer remaining to be one of the leading causes of cancer-related deaths; this highlights the need to formulate strategies that enhance the efficacy of available therapies. Mitomycin C (MMC) possesses antitumor effect in different cancers. However, the efficacy of MMC depends on other drugs in the combinational therapy and is often hampered by side-effects. Neferine, a natural alkaloid, exhibits antitumor effects in various cancers...
March 22, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28327454/collective-variables-for-the-study-of-long-time-kinetics-from-molecular-trajectories-theory-and-methods
#2
REVIEW
Frank Noé, Cecilia Clementi
Collective variables are an important concept to study high-dimensional dynamical systems, such as molecular dynamics of macromolecules, liquids, or polymers, in particular to define relevant metastable states and state-transition or phase-transition. Over the past decade, a rigorous mathematical theory has been formulated to define optimal collective variables to characterize slow dynamical processes. Here we review recent developments, including a variational principle to find optimal approximations to slow collective variables from simulation data, and algorithms such as the time-lagged independent component analysis...
March 16, 2017: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/28325938/so-doctor-now-what-do-i-do
#3
Eliana Schueler Reis
This paper proposes a discussion about acting on the therapeutic relationship using the notions of playing and the "use of an object" formulated by Winnicott; the formulations of Ferenczi as the concepts of introjection and the "ability to feel with", as well as the concept of cartography from Deleuze and Guattari. It discusses how to manage the meeting with individuals who confront the analyst with sudden questions, gestures and actions. I propose that the management of the acting considers that there is a call for a conversation in which "doing" is in question, and in which the playful dimension of activities without rules is employed as a necessary option...
March 21, 2017: American Journal of Psychoanalysis
https://www.readbyqxmd.com/read/28320908/reaction-and-relaxation-at-surface-hotspots-using-molecular-dynamics-and-the-energy-grained-master-equation-to-describe-diamond-etching
#4
David R Glowacki, W J Rodgers, Robin Shannon, Struan H Robertson, Jeremy N Harvey
The extent to which vibrational energy transfer dynamics can impact reaction outcomes beyond the gas phase remains an active research question. Molecular dynamics (MD) simulations are the method of choice for investigating such questions; however, they can be extremely expensive, and therefore it is worth developing cheaper models that are capable of furnishing reasonable results. This paper has two primary aims. First, we investigate the competition between energy relaxation and reaction at 'hotspots' that form on the surface of diamond during the chemical vapour deposition process...
April 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28320346/process-for-developing-rehabilitation-practice-recommendations-for-individuals-with-traumatic-brain-injury
#5
Librada Callender, Rachel Brown, Simon Driver, Marie Dahdah, Ashley Collinsworth, Shahid Shafi
BACKGROUND: Attempts at measuring quality of rehabilitation care are hampered by a gap in knowledge translation of evidence-based approaches and lack of consensus on best practices. However, adoption of evidence-based best practices is needed to minimize variations and improve quality of care. Therefore, the objective of this project was to describe a process for assessing the quality of evidence of clinical practices in traumatic brain injury (TBI) rehabilitative care. METHODS: A multidisciplinary team of clinicians developed discipline-specific clinical questions using the Population, Intervention, Control, Outcome process...
March 20, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28318723/pan-european-survey-of-the-topical-ocular-use-of-cyclosporine-a
#6
A Labbé, C Baudouin, D Ismail, M Amrane, J-S Garrigue, A Leonardi, F C Figueiredo, G Van Setten, M Labetoulle
OBJECTIVE: To assess medical practices surrounding the use of topical ocular cyclosporine A across European Union nations. METHODS: Key stakeholders (ophthalmologists, hospital pharmacists, regulatory health authorities) from European Union member states were interviewed by telephone using a semi-structured, open-ended questionnaire. Ophthalmologists responded to questions about practice patterns of cyclosporine A use (prescription frequency, indication, dosage), pharmacists about cyclosporine A formulations (composition, manufacturing process, quality control, distribution), and the regulatory authorities about market authorization and pharmacovigilance for various cyclosporine A products...
March 16, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28315072/direct-myosin-activation-by-omecamtiv-mecarbil-for-heart-failure-with-reduced-ejection-fraction
#7
Mitchell A Psotka, John R Teerlink
Myosin is the indispensable molecular motor that utilizes chemical energy to produce force for contraction within the cardiac myocyte. Myosin activity is gated by intracellular calcium levels which are regulated by multiple upstream signaling cascades that can be altered for clinical utility using inotropic medications. In contrast to clinically available cardiac inotropes, omecamtiv mecarbil is a novel direct myosin activator developed to augment left ventricular systolic function without the undesirable secondary effects of altered calcium homeostasis...
March 18, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28299187/engaging-high-school-students-in-systems-biology%C3%A2-through-an-e-internship-program
#8
Wim E Crusio, Cynthia Rubino, Anna Delprato
In this article, we describe the design and implementation of an e-internship program that BioScience Project offers high school students over the summer. Project topics are in the areas of behavioral neuroscience and brain disorders. All research, teaching, and communication is done online using open access databases and webtools, a learning management system, and Google apps. Students conduct all aspects of a research project from formulating a question to collecting and analyzing the data, to presenting their results in the form of a scientific poster...
2017: F1000Research
https://www.readbyqxmd.com/read/28298398/management-of-copd-exacerbations-a%C3%A2-european-respiratory-society-american-thoracic-society-guideline
#9
Jadwiga A Wedzicha, Marc Miravitlles, John R Hurst, Peter M A Calverley, Richard K Albert, Antonio Anzueto, Gerard J Criner, Alberto Papi, Klaus F Rabe, David Rigau, Pawel Sliwinski, Thomy Tonia, Jørgen Vestbo, Kevin C Wilson, Jerry A Krishnan
This document provides clinical recommendations for treatment of chronic obstructive pulmonary disease (COPD) exacerbations.Comprehensive evidence syntheses, including meta-analyses, were performed to summarise all available evidence relevant to the Task Force's questions. The evidence was appraised using the Grading of Recommendations, Assessment, Development and Evaluation approach and the results were summarised in evidence profiles. The evidence syntheses were discussed and recommendations formulated by a multidisciplinary Task Force of COPD experts...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28295789/acoustic-telemetry-and-fisheries-management
#10
Glenn T Crossin, Michelle R Heupel, Christopher M Holbrook, Nigel E Hussey, Susan K Lowerre-Barbieri, Vivian M Nguyen, Graham D Raby, Steven J Cooke
This paper reviews the use of acoustic telemetry as a tool for addressing issues in fisheries management, and serves as the lead to the special Feature Issue of Ecological Applications titled "Acoustic Telemetry and Fisheries Management". Specifically, we provide an overview of the ways in which acoustic telemetry can be used to inform issues central to the ecology, conservation, and management of exploited and/or imperiled fish species. Despite great strides in this area in recent years, there are comparatively few examples where data have been applied directly to influence fisheries management and policy...
March 15, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28294522/a-quantitative-screening-level-approach-to-incorporate-chemical-exposure-and-risk-safety-into-alternative-assessment-evaluations
#11
Scott M Arnold, Bill Greggs, Katy O Goyak, Bryce D Landenberger, Ann M Mason, Brett Howard, Rosemary Zaleski, Brett Howard, Rosemary T Zaleski
As the general public and retailers ask for disclosure of chemical ingredients in the marketplace, a number of hazard screening tools were developed to evaluate the so called "greenness" of individual chemical ingredients and/or formulations. The majority of these tools focus only on hazard, often using chemical lists, ignoring the other part of the risk equation: exposure. Using a hazard-only focus can result in regrettable substitutions, changing one chemical ingredient for another that turns out to be more hazardous or shifts the toxicity burden to others...
March 10, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28291962/matching-the-statistical-model-to-the-research-question-for-dental-caries-indices-with-many-zero-counts
#12
John S Preisser, D Leann Long, John W Stamm
Marginalized zero-inflated count regression models have recently been introduced for the statistical analysis of dental caries indices and other zero-inflated count data as alternatives to traditional zero-inflated and hurdle models. Unlike the standard approaches, the marginalized models directly estimate overall exposure or treatment effects by relating covariates to the marginal mean count. This article discusses model interpretation and model class choice according to the research question being addressed in caries research...
March 15, 2017: Caries Research
https://www.readbyqxmd.com/read/28291047/the-impact-of-pre-exposure-prophylaxis-among-men-who-have-sex-with-men-an-individual-based-model
#13
Parastu Kasaie, Jeff Pennington, Maunank S Shah, Stephen A Berry, Danielle German, Colin P Flynn, Chris Beyrer, David W Dowdy
OBJECTIVES: Pre-exposure prophylaxis (PrEP) is recommended for preventing HIV infection among individuals at high risk, including men who have sex with men (MSM). Although its individual-level efficacy is proven, questions remain regarding population-level impact of PrEP implementation. DESIGN: We developed an agent-based simulation of HIV transmission among MSM, accounting for demographics, sexual contact network, HIV disease stage and use of antiretroviral therapy...
March 10, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28289029/antimalarial-hybrid-molecules-a-close-reality-or-a-distant-dream
#14
Drishti Agarwal, Rinkoo D Gupta, Satish K Awasthi
Emergence of drug resistant Plasmodium falciparum strains has led to a situation of haste in the scientific and pharmaceutical communities. Hence, all their efforts are redirected towards finding alternate chemotherapeutic agents that are capable of combating multi-drug resistant parasite strains. In the above light, scientists have come up with the concept of hybridisation of two or more active pharmacophores into a single chemical entity, resulting in 'antimalarial hybrids.' The approach has been applied widely for lead generation against deadly diseases such as cancer and AIDS, with proven potential to be used as novel drugs, but is comparatively new in the sphere of antimalarial drug discovery...
March 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28286494/clinical-practice-evidence-based-recommendations-for-the-treatment-of-cervical-dystonia-with-botulinum-toxin
#15
REVIEW
Maria Fiorella Contarino, Joost Van Den Dool, Yacov Balash, Kailash Bhatia, Nir Giladi, Johannes H Koelman, Annemette Lokkegaard, Maria J Marti, Miranda Postma, Maja Relja, Matej Skorvanek, Johannes D Speelman, Evelien Zoons, Joaquim J Ferreira, Marie Vidailhet, Alberto Albanese, Marina A J Tijssen
Cervical dystonia (CD) is the most frequent form of focal dystonia. Symptoms often result in pain and functional disability. Local injections of botulinum neurotoxin are currently the treatment of choice for CD. Although this treatment has proven effective and is widely applied worldwide, many issues still remain open in the clinical practice. We performed a systematic review of the literature on botulinum toxin treatment for CD based on a question-oriented approach, with the aim to provide practical recommendations for the treating clinicians...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28277041/investigating-an-approach-to-the-alliance-based-on-interpersonal-defense-theory
#16
Michael A Westerman, J Christopher Muran
OBJECTIVE: Notwithstanding consistent findings of significant relationships between the alliance and outcome, questions remain to be answered about the relatively small magnitude of those correlations, the mechanisms underlying the association, and how to conceptualize the alliance construct. We conducted a preliminary study of an approach to the alliance based on interpersonal defense theory, which is an interpersonal reconceptualization of defense processes, to investigate the promise of this alternative approach as a way to address the outstanding issues...
March 28, 2016: Psychotherapy Research: Journal of the Society for Psychotherapy Research
https://www.readbyqxmd.com/read/28270383/patterns-and-predictors-of-adherence-to-statin-therapy-among-older-patients-protocol-for-a-systematic-review
#17
Richard Ofori-Asenso, Ella Zomer, Andrea Curtis, Andrew Tonkin, Mark Nelson, Manoj Gambhir, Danny Liew, Sophia Zoungas
BACKGROUND: The benefits of statin therapy are significantly compromised by noncompliance. Although elderly patients may have particular challenges with medication adherence and persistence, previous reviews on statin adherence have not focused on this population. Additionally, comparisons of adherence and persistence specific to statin indication (primary or secondary prevention) have not been thoroughly explored. OBJECTIVE: We aim to assess the extent of, and factors associated with, adherence and persistence to statin therapy among older populations (aged ≥65 years)...
March 7, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28264741/mixed-features-evolution-of-the-concept-past-and-current-definitions-and-future-prospects
#18
Alan C Swann
Mixed states address the relationships between episodes and the course of an illness, presenting significant clinical challenges. Recurrent affective disorders were described thousands of years ago as dimensional disturbances of the basic elements of behavior, combining the characteristics of what we would now consider manic and depressive episodes. It was recognized from the beginning that combinations of depressive and manic features are associated with a severe illness course, including increased suicide risk...
March 7, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28259786/new-methodology-for-mechanical-characterization-of-human-superficial-facial-tissue-anisotropic-behaviour-in-vivo
#19
C Then, B Stassen, K Depta, G Silber
Mechanical characterization of human superficial facial tissue has important applications in biomedical science, computer assisted forensics, graphics, and consumer goods development. Specifically, the latter may include facial hair removal devices. Predictive accuracy of numerical models and their ability to elucidate biomechanically relevant questions depends on the acquisition of experimental data and mechanical tissue behavior representation. Anisotropic viscoelastic behavioral characterization of human facial tissue, deformed in vivo with finite strain, however, is sparse...
February 21, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28259292/what-is-the-role-of-postoperative-re-irradiation-in-recurrent-and-second-primary-squamous-cell-cancer-of-head-and-neck-a-literature-review-according-to-pico-criteria
#20
REVIEW
Anna Merlotti, Rosario Mazzola, Daniela Alterio, Filippo Alongi, Almalina Bacigalupo, Pierluigi Bonomo, Marta Maddalo, Elvio Grazioso Russi, Ester Orlandi
Re-irradiation has been increasingly offered as a potential effective treatment for head and neck squamous cell carcinoma (HNSCC) loco-regional recurrence as well as second primary tumor in previously irradiated area. This review focused on the role of postoperative re-irradiation (POreRT) in terms of feasibility, toxicity and long-term outcomes in HNSCC patients. The key issue for the research was formulated in two questions according to the PICO (population, intervention, control, and outcomes) criteria. A total of 16 publications met the inclusion criteria for a total of 919 patients; in 522 patients POreRT was performed...
March 2017: Critical Reviews in Oncology/hematology
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