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https://www.readbyqxmd.com/read/29166720/-long-term-safety-and-efficacy-of-a-novel-abluminal-groove-filled-biodegradable-polymer-sirolimus-eluting-stent-for-the-treatment-of-coronary-de-novo-lesions
#1
C J Li, B Xu, C D Guan, R L Gao
Objective: To compare the long term safety and efficacy of the novel abluminal groove-filled biodegradable polymer sirolimus-eluting stent(Firehawk stent) and permanent polymer coating everolimus eluting stent(Xience V stent) for the treatment of coronary de novo lesions. Methods: This prospective, multi-center, non-inferiority, randomized control trial(TARGETⅠ trial) was performed between August 2010 and April 2011, a total of 460 patients with primary, de novo, single vessel and single coronary lesion from 16 medical centers were enrolled...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166707/-establishment-of-myocardial-targeted-nanoparticles-and-preliminary-evaluation-of-its-effects-on-prevention-and-treatment-of-myocardial-injury
#2
Y Y Liu, C Wang, P F Luo, Z F Xia
Objective: To establish 3-{4-[2-hydroxyl-(1-methylethylamino) propoxy] phenyl} propionic acid cetylesters (PAC) modified nanoparticles, and preliminarily explore its cardiomyocyte-targeting function and protection effects on myocardium. Methods: (1) HL-1 myocardial cells were divided into cyanidin-3 (Cy3) marked non-targeted small interference RNA (Cy3-siNC) group and Cy3 marked small interference RNA designed for the nuclear factor kappa B (NF-κB)-p65 gene (Cy3-si435) group according to the random number table, with 3 wells in each group...
November 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29166565/hospital-based-physicians-intubation-decisions-and-associated-mental-models-when-managing-a-critically-and-terminally-ill-older-patient
#3
Shannon Haliko, Julie Downs, Deepika Mohan, Robert Arnold, Amber E Barnato
BACKGROUND: Variation in the intensity of acute care treatment at the end of life is influenced more strongly by hospital and provider characteristics than patient preferences. OBJECTIVE: We sought to describe physicians' mental models (i.e., thought processes) when encountering a simulated critically and terminally ill older patient, and to compare those models based on whether their treatment plan was patient preference-concordant or preference-discordant. METHODS: Seventy-three hospital-based physicians from 3 academic medical centers engaged in a simulated patient encounter and completed a mental model interview while watching the video recording of their encounter...
November 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29166562/a-lc-hrms-data-processing-strategy-for-reliable-sample-comparison-exemplified-by-the-assessment-of-water-treatment-processes
#4
Tobias Johannes Bader, Wolfgang Schulz, Klaus Kümmerer, Rudi Winzenbacher
The behavior of micropollutants in water treatment is an important aspect in terms of water quality. Non-target screening by liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS) offers the opportunity to comprehensively assess water treatment processes by comparing the signal heights of all detectable compounds before and after treatment. Without preselection of known target compounds, all accessible information is used to describe changes across processes and thus serves as a measure for the treatment efficiency...
November 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29166504/moderate-to-severe-psoriasis-treatment-challenges-through-the-era-of-biological-drugs
#5
Júlia Vide, Sofia Magina
Biological therapy has revolutionized moderate to severe psoriasis treatment. However, despite being more effective than conventional systemic treatments, some patients do not respond or lose response to biotechnological treatments or develop drug-antibodies, interfering with its safety and efficacy. There are also clinical forms of the disease and patient profiles for which is pending further scientific evidence for more sustained therapeutic interventions. The continuous and more detailed knowledge of psoriasis pathophysiology has allowed identifying new therapeutic targets, which is expected to help overcome the challenges of individualized psoriasis treatment...
September 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29166481/-prep-forum-an-on-line-debate-on-pre-exposure-prophylaxis-in-brazil
#6
Artur Acelino Francisco Luz Nunes Queiroz, Alvaro Francisco Lopes de Sousa
This study aimed to identify health-promoting contents focused on HIV/Aids prevention in messages posted in a Facebook group for debates on the use of pre-exposure prophylaxis (PrEP). This was a prospective observational study using systematic non-participant observation. From July 2015 to June 2016, all the posts in the group were catalogued and formed a corpus. Everything was processed in IRaMuTeQ and analyzed by descending hierarchical classification. The collected data were grouped in three classes: (1) HIV/Aids prevention: discussing prophylaxis, treatment, target public, and side effects; (2) universal access to PrEP in Brazil: discussing government responsibilities; (3) on-line purchase of truvada: exposing a situation of vulnerability...
November 21, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/29166141/adherence-to-the-wcrf-aicr-for-women-in-breast-cancer-adjuvant-treatment-submitted-to-educational-nutritional-intervention
#7
Sheyla de Liz, Francilene Gracieli Kunradi Vieira, Maria Alice Altenburg de Assis, Alyne Lizane Cardoso, Clarice Perucchi Lopes Pazini, Patricia Faria Di Pietro
Patients undergoing breast cancer treatment are susceptible to changes in eating behavior and nutrition status, thus making nutrition education relevant. Based on the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) guide, with recommendations for cancer prevention released in 2007, the present study aimed to evaluate the effectiveness of educational nutritional intervention for women with breast cancer undergoing treatment while adhering to the 2007 WCRF/AICR guidelines. A nonrandomized clinical trial was conducted with a population composed of female patients, divided in intervention (IG, n = 18) and comparison (CG, n = 68) groups...
November 22, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29166133/dosimetric-impact-of-gastrointestinal-air-column-in-radiation-treatment-of-pancreatic-cancer
#8
Neil C Estabrook, Jonathan B Corn, Marvene E Ewing, Higinia R Cardenes, Indra J Das
OBJECTIVE: Dosimetric evaluation of air column in gastro-intestinal (GI) structures in IMRT of pancreatic cancer. METHODS: Nine sequential patients were retrospectively chosen for dosimetric analysis of air column in the GI apparatus in pancreatic cancer using cone beam CT (CBCT). The 4DCT was used for target and organs at risk (OARs) and non-coplanar IMRT was used for treatment. Once/week, these patients underwent CBCT for air filling, isocenter verification and dose calculations retrospectively...
November 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29166129/initial-observations-of-intra-and-inter-fractional-motion-variation-in-mr-guided-lung-sbrt
#9
David H Thomas, Anand Santhanam, Amar U Kishan, Minsong Cao, James Lamb, Yugang Min, Dylan O'Connell, Yingli Yang, Nzhde Agazaryan, Percy Lee, Daniel Low
OBJECTIVE: To evaluate variations in intra- and inter-fractional tumor motion, and the effect on ITV contour accuracy, using deformable image registration of real-time 2D-sagital cine-mode MRI acquired during lung SBRT treatments. METHODS: Five lung tumor patients underwent free breathing SBRT treatments on the ViewRay system, with dose prescribed to a planning target volume (PTV; defined as a 3-6 mm expansion of the 4DCT-ITV). Sagittal slice cine-MR images (3.5x3...
November 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29166070/effect-of-the-diradical-character-on-static-polarizabilities-and-two-photon-absorption-cross-sections-a-closer-look-with-spin-flip-equation-of-motion-coupled-cluster-singles-and-doubles-method
#10
Kaushik D Nanda, Anna I Krylov
We present static polarizabilities and two-photon absorption (2PA) cross sections for the low-lying electronic states of prototypical diradicals such as benzynes and analogues of m-xylylene and p-quinodimethane computed with the spin-flip equation-of-motion coupled-cluster singles and doubles (EOM-SF-CCSD) method. The static polarizabilities were calculated as analytic second derivatives of the EOM energies, and the 2PA cross sections were calculated using the expectation-value approach. We explain the trends in the nonlinear responses of the SF target states by constructing few-states models based on truncated sum-over-states expressions for these nonlinear properties...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29165988/bioconjugate-strategies-for-the-induction-of-antigen-specific-tolerance-in-autoimmune-diseases
#11
Chunsong Yu, Jingchao Xi, Meng Li, Myunggi An, Haipeng Liu
Antigen-specific immunotherapy (ASI) holds great promise for the treatment of autoimmune diseases. In mice, administration of major histocompatibility complex (MHC) binding synthetic peptides which modulate T cell receptor (TCR) signaling under subimmunogenic conditions induces selective tolerance without suppressing the global immune responses. However, clinical translation has yielded limited success. It has become apparent that the TCR signaling pathway via synthetic peptide antigen alone is inadequate to induce an effective tolerogenic immunity in autoimmune diseases...
November 22, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29165795/therapeutic-potency-of-mtor-signaling-pharmacological-inhibitors-in-the-treatment-of-proinflammatory-diseases-current-status-and-perspectives
#12
REVIEW
Arash Soltani, Amirhossein Bahreyni, Nadia Boroumand, Mostafa Karimi Roshan, Majid Khazaei, Mikhail Ryzhikov, Saman Soleimanpour, Amir Avan, Seyed Mahdi Hassanian
Mammalian target of rapamycin (mTOR) signaling pathway controls cell energy metabolism. There is an interplay between mTOR and proinflammatory signaling pathways, supporting the role of the pathway in the pathogenesis of inflammatory diseases. Inhibition of mTOR signaling using specific pharmacological inhibitors could offer therapeutic promise in several inflammatory-associated diseases. In this review, we summarize recent findings on the regulatory effects of mTOR signaling on inflammation and the therapeutic potency of mTOR pharmacological inhibitors in the treatment of inflammatory diseases including cancer, neurodegenerative diseases, atherosclerosis, sepsis and rheumatoid arthritis for a better understanding and hence a better management of these diseases...
November 22, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29165794/leptomeningeal-metastasis-from-systemic-cancer-review-and-update-on-management
#13
REVIEW
Nancy Wang, Mia S Bertalan, Priscilla K Brastianos
Leptomeningeal metastasis is an uncommon and typically late complication of cancer with a poor prognosis and limited treatment options. Diagnosis is often challenging, with nonspecific presenting symptoms ranging from headache and confusion to focal neurologic deficits, such as cranial nerve palsies. Standard diagnostic evaluation involves a neurologic examination, magnetic resonance imaging of the brain and spine with gadolinium, and cytologic evaluation of the cerebral spinal fluid. Therapy entails a multimodal approach focused on palliation with surgery, radiation, and/or chemotherapy, which may be administered systemically or directly into the cerebral spinal fluid...
November 22, 2017: Cancer
https://www.readbyqxmd.com/read/29165716/targeting-bcr-abl-independent-tki-resistance-in-chronic-myeloid-leukemia-by-mtor-and-autophagy-inhibition
#14
Rebecca Mitchell, Lisa E M Hopcroft, Pablo Baquero, Elaine K Allan, Kay Hewit, Daniel James, Graham Hamilton, Arunima Mukhopadhyay, Jim O'Prey, Alan Hair, Junia V Melo, Edmond Chan, Kevin M Ryan, Véronique Maguer-Satta, Brian J Druker, Richard E Clark, Subir Mitra, Pawel Herzyk, Franck E Nicolini, Paolo Salomoni, G Vignir Helgason
Background: Imatinib and second-generation tyrosine kinase inhibitors (TKIs) nilotinib and dasatinib have statistically significantly improved the life expectancy of chronic myeloid leukemia (CML) patients; however, resistance to TKIs remains a major clinical challenge. Although ponatinib, a third-generation TKI, improves outcomes for patients with BCR-ABL-dependent mechanisms of resistance, including the T315I mutation, a proportion of patients may have or develop BCR-ABL-independent resistance and fail ponatinib treatment...
November 20, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29165714/blood-lipid-genetic-scores-the-hmgcr-gene-and-cancer-risk-a-mendelian-randomization-study
#15
Marju Orho-Melander, George Hindy, Signe Borgquist, Christina-Alexandra Schulz, Jonas Manjer, Olle Melander, Tanja Stocks
Background: It is unclear whether there are causal associations between blood lipids, statin use and cancer risks. Under certain assumptions, Mendelian randomization analysis of a genetic marker for an exposure eliminates reverse causation and confounding. Methods: We applied Mendelian randomization analysis to genetic scores, comprising 26-41 single-nucleotide polymorphisms (SNPs), as instrumental variables (IVs) for triglycerides and low- and high-density lipoprotein cholesterol (LDLC, HDLC), using a prospective cohort of 26 904 individuals in which there were 6607 incident cancers...
November 20, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29165645/down-regulation-of-mir-378a-3p-induces-decidual-cell-apoptosis-a-possible-mechanism-for-early-pregnancy-loss
#16
Lihua Hong, Tiantian Yu, Haiyan Xu, Ningning Hou, Qi Cheng, Lihua Lai, Qingqing Wang, Jianzhong Sheng, Hefeng Huang
STUDY QUESTION: Do microRNAs (miRNAs) contribute to human early pregnancy loss (EPL)? SUMMARY ANSWER: miR-378a-3p expression is regulated by progesterone and is down-regulated in ducidua of EPL patients which may contribute to decidual apoptosis through Caspase-3 activation. WHAT IS KNOWN ALREADY: A variety of miRNAs have been demonstrated to be associated with the development of decidualization and placental formation. However, little has been reported on the roles of miRNA in the pathogenesis of EPL...
November 18, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29165638/feasibility-of-real-time-molecular-profiling-for-patients-with-newly-diagnosed-glioblastoma-without-mgmt-promoter-hypermethylation-the-nct-neuro-master-match-n2m2-pilot-study
#17
Elke Pfaff, Tobias Kessler, Gnana Prakash Balasubramanian, Anne Berberich, Daniel Schrimpf, Antje Wick, Jürgen Debus, Andreas Unterberg, Martin Bendszus, Christel Herold-Mende, David Capper, Irini Schenkel, Andreas Eisenmenger, Susan Dettmer, Benedikt Brors, Michael Platten, Stefan M Pfister, Andreas von Deimling, David T W Jones, Wolfgang Wick, Felix Sahm
Introduction: O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation status is a predictive biomarker in glioblastoma patients. Glioblastoma without hypermethylated MGMT promoter are largely resistant to treatment with temozolomide. These patients are in particular need of new treatment approaches, which are offered by biomarker-driven clinical trials with targeted drugs based on molecular characterization of individual tumors. Methods: In preparation for an upcoming clinical study, a comprehensive molecular profiling approach was undertaken on tissues from 43 glioblastoma patients harboring an unmethylated MGMT promoter at diagnosis...
November 18, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29165577/quantitative-mri-brain-in-congenital-adrenal-hyperplasia-in-vivo-assessment-of-the-cognitive-and-structural-impact-of-steroid-hormones
#18
Emma A Webb, Lucy Elliott, Dominic Carlin, Martin Wilson, Kirsty Hall, Jennifer Netherton, Julie Reed, Tim G Barrett, Vijay Salwani, Jon D Clayden, Wiebke Arlt, Nils Krone, Andrew C Peet, Amanda G Wood
Context: Brain white matter hyper-intensities are seen on routine clinical imaging in 46% of adults with congenital adrenal hyperplasia (CAH). The extent and functional relevance of these abnormalities have not been studied using quantitative MRI analysis. Objective: To examine white matter microstructure, neural volumes and CNS metabolites in CAH due to 21-hydroxylase deficiency (21OHD) and to determine whether identified abnormalities are associated with cognition, glucocorticoid and androgen exposure...
November 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29165391/micrornas-associated-with-von-hippel-lindau-pathway-in-renal-cell-carcinoma-a-comprehensive-review
#19
REVIEW
Lisa-Maria Schanza, Maximilian Seles, Michael Stotz, Johannes Fosselteder, Georg C Hutterer, Martin Pichler, Verena Stiegelbauer
Renal cell carcinoma (RCC) are the most common renal neoplasia and can be divided into three main histologic subtypes, among which clear cell RCC is by far the most common form of kidney cancer. Despite substantial advances over the last decade in the understanding of RCC biology, surgical treatments, and targeted and immuno-therapies in the metastatic setting, the prognosis for advanced RCC patients remains poor. One of the major problems with RCC treatment strategies is inherent or acquired resistance towards therapeutic agents over time...
November 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29165360/dynamic-docking-a-paradigm-shift-in-computational-drug-discovery
#20
REVIEW
Dario Gioia, Martina Bertazzo, Maurizio Recanatini, Matteo Masetti, Andrea Cavalli
Molecular docking is the methodology of choice for studying in silico protein-ligand binding and for prioritizing compounds to discover new lead candidates. Traditional docking simulations suffer from major limitations, mostly related to the static or semi-flexible treatment of ligands and targets. They also neglect solvation and entropic effects, which strongly limits their predictive power. During the last decade, methods based on full atomistic molecular dynamics (MD) have emerged as a valid alternative for simulating macromolecular complexes...
November 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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