keyword
MENU ▼
Read by QxMD icon Read
search

Raf

keyword
https://www.readbyqxmd.com/read/28449316/does-my-high-blood-pressure-improve-your-survival-overall-and-subgroup-learning-curves-in-health
#1
Raf Van Gestel, Tobias Müller, Johan Bosmans
Learning curves in health are of interest for a wide range of medical disciplines, healthcare providers, and policy makers. In this paper, we distinguish between three types of learning when identifying overall learning curves: economies of scale, learning from cumulative experience, and human capital depreciation. In addition, we approach the question of how treating more patients with specific characteristics predicts provider performance. To soften collinearity problems, we explore the use of least absolute shrinkage and selection operator regression as a variable selection method and Theil-Goldberger mixed estimation to augment the available information...
April 27, 2017: Health Economics
https://www.readbyqxmd.com/read/28448514/a-new-gtf2i-braf-fusion-mediating-mapk-pathway-activation-in-pilocytic-astrocytoma
#2
Tajana Tešan Tomić, Josefin Olausson, Annica Wilzén, Magnus Sabel, Katarina Truvé, Helene Sjögren, Sándor Dósa, Magnus Tisell, Birgitta Lannering, Fredrik Enlund, Tommy Martinsson, Pierre Åman, Frida Abel
Pilocytic astrocytoma (PA) is the most common pediatric brain tumor. A recurrent feature of PA is deregulation of the mitogen activated protein kinase (MAPK) pathway most often through KIAA1549-BRAF fusion, but also by other BRAF- or RAF1-gene fusions and point mutations (e.g. BRAFV600E). These features may serve as diagnostic and prognostic markers, and also facilitate development of targeted therapy. The aims of this study were to characterize the genetic alterations underlying the development of PA in six tumor cases, and evaluate methods for fusion oncogene detection...
2017: PloS One
https://www.readbyqxmd.com/read/28445994/correction-amphiregulin-enhances-alpha6beta1-integrin-expression-and-cell-motility-in-human-chondrosarcoma-cells-through-ras-raf-mek-erk-ap-1-pathway
#3
Jui-Chieh Chen, Yu-Ju Chen, Chih-Yang Lin, Yi-Chin Fong, Chin-Jung Hsu, Chun-Hao Tsai, Jen-Liang Su, Chih-Hsin Tang
No abstract text is available yet for this article.
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445974/lowered-expression-of-microrna-125a-5p-in-human-hepatocellular-carcinoma-and-up-regulation-of-its-oncogenic-targets-sirtuin-7-matrix-metalloproteinase-11-and-c-raf
#4
Nicola Coppola, Giorgio de Stefano, Marta Panella, Lorenzo Onorato, Valentina Iodice, Carmine Minichini, Nicola Mosca, Luisa Desiato, Nunzia Farella, Mario Starace, Giulia Liorre, Nicoletta Potenza, Evangelista Sagnelli, Aniello Russo
Human microRNA-125a-5p (miR-125a) is expressed in most tissues where it downregulates the expression of membrane receptors or intracellular transductors of mitogenic signals, thus limiting cell proliferation. Expression of this miRNA generally increases with cell differentiation whereas it is downregulated in several types of tumors, such as breast, lung, ovarian, gastric, colon, and cervical cancers, neuroblastoma, medulloblastoma, glioblastoma, and retinoblastoma. In this study, we focused on hepatocellular carcinoma and used real-time quantitative PCR to measure miR-125a expression in 55 tumor biopsies and in matched adjacent non-tumor liver tissues...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445541/iqgap1-is-an-oncogenic-target-in-canine-melanoma
#5
Becky H Lee, Poornima H Neela, Michael S Kent, Ashley M Zehnder
Canine oral mucosal melanoma is an aggressive malignant neoplasm and is characterized by local infiltration and a high metastatic potential. The disease progression is similar to that of human oral melanomas. Whereas human cutaneous melanoma is primarily driven by activating mutations in Braf (60%) or Nras (20%), human mucosal melanoma harbors these mutations much less frequently. This makes therapeutic targeting and research modeling of the oral form potentially different from that of the cutaneous form in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28445254/the-clinical-features-treatment-and-prognosis-of-primary-mediastinal-malignant-melanoma-a-case-report
#6
ZiHai Li, Hui Jia, Baijiang Zhang, Yongming Zhang, Hui Li, Pingping Song
RATIONALE: Primary malignant melanoma (MM) of the mediastinum is exceedingly rare; a review of the English-language literature reveals only a small number of case reports. In this paper, we discuss a case of primary mediastinal MM and present a review of the relevant literature on its clinical features and treatment. PATIENT CONCERNS: A 52-year-old male presenting with back pain was admitted to our hospital for treatment. Imaging examination revealed an anterior mediastinal mass and no evidence of other metastatic or primary lesions...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444807/rkip-lessons-of-a-better-way-for-%C3%AE-adrenergic-receptor-activation-in-the-heart
#7
Kristina Lorenz, Marsha Rich Rosner, Theresa Brand, Joachim P Schmitt
Stimulation of β-adrenergic receptors (βAR) provides the most efficient physiological mechanism to enhance contraction and relaxation of the heart. Activation of βAR allows rapid enhancement of myocardial function in order to fuel the muscles for running and fighting in a fight-or-flight response. Likewise, βAR get activated during cardiovascular disease in an attempt to counteract the restrictions of cardiac output. However, long-term stimulation of βAR increases the likelihood of cardiac arrhythmias, adverse ventricular remodelling, decline of cardiac performance and premature death, thereby limiting the use of βAR agonists in the treatment of heart failure...
April 26, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28442011/-ck2%C3%AE-regulates-the-metastases-and-migration-of-lung-adenocarcinoma-%C3%A2-a549-cell-line-through-pi3k-akt-gsk-3%C3%AE-signal-pathway
#8
Aibing Wu, Mingchun Li, Zongjiong Mai, Shujun Li, Zhixiong Yang
BACKGROUND: Lung cancer is the leading cancer-related death worldwide. Patients with lung cancer mainly died of tumor metastasis and invasion. Protein kinase CK2 is an ubiquitous serine/threonine protein kinase and is frequently upregulated in various human tumors. This study aims to explore the effect and molecular mechanism of the invasion and migration of lung adenocarcinoma A549 cells after knock-down of CK2α expression. METHODS: The pSilencerTM 4.1-siCK2α-eGFP of lentiviral-mediated shRNA was constructed...
April 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28431826/the-dallol-volcano
#9
Raf Aerts, Eva J J November
No abstract text is available yet for this article.
April 18, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28431480/predictive-and-prognostic-factors-associated-with-soft-tissue-sarcoma-response-to-chemotherapy-a-subgroup-analysis-of-the-european-organisation-for-research-and-treatment-of-cancer-62012-study
#10
Robin J Young, Saskia Litière, Michela Lia, Pancras C W Hogendoorn, Cyril Fisher, Gunhild Mechtersheimer, Søren Daugaard, Raf Sciot, Françoise Collin, Christina Messiou, Viktor Grünwald, Alessandro Gronchi, Winette van der Graaf, Eva Wardelmann, Ian Judson
BACKGROUND: The European Organization for Research and Treatment of Cancer (EORTC) 62012 study was a Phase III trial of doxorubicin versus doxorubicin-ifosfamide chemotherapy in 455 patients with advanced soft tissue sarcoma (STS). Analysis of the main study showed that combination chemotherapy improved tumor response and progression-free survival, but differences in overall survival (OS) were not statistically significant. We analyzed factors prognostic for tumor response and OS, and assessed histological subgroup and tumor grade as predictive factors to identify patients more likely to benefit from combination chemotherapy...
April 21, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28428969/targeted-lung-cancer-treatments-and-eye-metastasis
#11
REVIEW
Paul Zarogoulidis, Sofia Baka, Sofia Labaki, George Lazaridis, Georgia Trakada
Lung cancer remains the leading cause of death due to cancer. We do not have effective tools for the early detection of lung cancer, so patients are usually diagnosed at an advanced stage. However, novel therapies based on molecular pathways (such as those involving the epidermal growth factor receptor, anaplastic lymphoma kinase, serine/threonine-protein kinase B-Raf, proto-oncogene tyrosine-protein kinase ROS, c-Met proto-oncogene protein, and RET proto-oncogene protein) are now commonly used in the treatment of lung cancer...
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28427158/the-varied-distribution-and-impact-of-ras-codon-and-other-key-dna-alterations-across-the-translocation-cyclin-d-subgroups-in-multiple-myeloma
#12
Caleb K Stein, Charlotte Pawlyn, Shweta Chavan, Leo Rasche, Niels Weinhold, Adam Corken, Amy Buros, Pieter Sonneveld, Graham H Jackson, Ola Landgren, Tariq Mughal, Jie He, Bart Barlogie, P Leif Bergsagel, Faith E Davies, Brian A Walker, Gareth J Morgan
We examined a set of 805 cases that underwent DNA sequencing using the FoundationOne Heme (F1H) targeted sequencing panel and gene expression profiling. Known and likely variant calls from the mutational data were analyzed for significant associations with gene expression defined translocation cyclin D (TC) molecular subgroups. The spectrum of KRAS, NRAS, and BRAF codon mutations varied across subgroups with NRAS mutations at Q61 codon being common in hyperdiploid (HRD) and t(11;14) myeloma while being rare in MMSET and MAF...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424891/a-phase-i-dose-escalation-study-of-selumetinib-in-combination-with-erlotinib-or-temsirolimus-in-patients-with-advanced-solid-tumors
#13
Jeffrey R Infante, Roger B Cohen, Kevin B Kim, Howard A Burris, Gregory Curt, Ugochi Emeribe, Delyth Clemett, Helen K Tomkinson, Patricia M LoRusso
Background Combinations of molecularly targeted agents may provide optimal anti-tumor activity and improve clinical outcomes for patients with advanced cancers. Selumetinib (AZD6244, ARRY-142886) is an oral, potent and highly selective, allosteric inhibitor of MEK1/2, a component of the RAS/RAF/MEK/ERK pathway which is constitutively activated in many cancers. We investigated the safety, tolerability, and pharmacokinetics (PK) of selumetinib in combination with molecularly targeted drugs erlotinib or temsirolimus in patients with advanced solid tumors...
April 19, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28424234/braf-v600-mutation-detection-in-melanoma-a-comparison-of-two-laboratory-testing-methods
#14
Odharnaith O'Brien, Tomas Lyons, Sandra Murphy, Linda Feeley, Derek Power, Cynthia C B B Heffron
AIMS: The assessment of B-raf proto-oncogene, serine/threonine kinase (BRAF) gene status is now standard practice in patients diagnosed with metastatic melanoma with its presence predicting a clinical response to treatment with BRAF inhibitors. The gold standard in determining BRAF status is currently by DNA-based methods. More recently, a BRAF V600E antibody has been developed. We aim to investigate whether immunohistochemical detection of BRAF mutation is a suitable alternative to molecular testing by polymerase chain reaction (PCR)...
April 19, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28423582/parthenolide-suppresses-non-small-cell-lung-cancer-glc-82-cells-growth-via-b-raf-mapk-erk-pathway
#15
Minting Lin, Hong Bi, Yanyan Yan, Wenjing Huang, Guiping Zhang, Genshui Zhang, Sili Tang, Yun Liu, Lingling Zhang, Jinxiang Ma, Jianye Zhang
Non-small cell lung cancer (NSCLC), one type of lung cancer, owns high rates of morbidity and mortality. B-Raf is one of the promising oncogenic drivers of NSCLC. Parthenolide, a natural product, is mainly extracted from the herbal plant Tanacetum parthenium. The effect of parthenolide on NSCLC cells and its potential as B-Raf inhibitor were studied in this study. It's shown that parthenolide exhibited the strong cytotoxicity against NSCLC cells with IC50 ranging from 6.07 ± 0.45 to 15.38 ± 1.13 μM. Parthenolide was also able to induce apoptosis, suppress proliferation and invasion in NSCLC cells...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423577/the-cyclin-like-protein-spy1-regulates-the-er%C3%AE-and-erk1-2-pathways-promoting-tamoxifen-resistance
#16
Rosa-Maria Ferraiuolo, Janice Tubman, Indrajit Sinha, Caroline Hamm, Lisa Ann Porter
The Ras/Raf/MEK/ERK pathway conveys growth factor and mitogen signalling to control the phosphorylation of a plethora of substrates regulating proliferation, survival, and migration. The Ras signalling pathway is frequently associated with poor prognosis and drug resistance in various cancers including those of the blood, breast and prostate. Activation of the downstream effector ERK does not always occur via a linear cascade of events; complicating the targeting of this pathway therapeutically. This work describes a novel positive feedback loop where the cell cycle regulatory factor Spy1 (RINGO; gene SPDYA) activates ERK1/2 in a MEK-independent fashion...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421082/insights-into-the-structure-function-and-ion-mediated-signaling-pathways-transduced-by-plant-integrin-linked-kinases
#17
Sorina C Popescu, Elizabeth K Brauer, Gizem Dimlioglu, George V Popescu
Kinases facilitate detection of extracellular signals and set in motion cellular responses for plant adaptation and survival. Some of the energy utilized for kinase signal processing is produced through the activity of ion transporters. Additionally, the synergy between cellular ions and signal transduction influences plant response to pathogens, and their growth and development. In plants, the signaling elements that connect cell wall and membrane sensors with ion homeostasis and transport-mediated processes are largely unknown...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28420504/the-clinical-profile-of-young-and-adolescent-women-with-laparoscopically-diagnosed-endometriosis-in-a-singapore-tertiary-hospital
#18
Yoke-Fai Fong, Soon-Kit Hon, Li-Lian Low, Karen Lim Mei Xian
OBJECTIVE: Endometriosis has been increasingly recognized as the cause of severe dysmenorrhea among younger women including adolescents, often with significant delay from time of presentation to diagnosis. Data on the South East Asian women is scarce. This study aims to describe the disease pattern in a group of young Asian women with histological diagnosis of endometriosis in our center. MATERIALS AND METHODS: A total of 709 laparoscopic operations were performed for endometriosis in our center between 2000 and 2007...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28419533/a-new-approach-for-radiosynoviorthesis-a-dose-optimized-planning-method-based-on-monte-carlo-simulation-and-synovial-measurement-using-3d-slicer-and-mri
#19
Mirta Bárbara Torres Berdeguez, Sylvia Thomas, Patricia Rafful, Tiago Arruda Sanchez, Susie Medeiros Oliveira Ramos, Marta Souza Albernaz, Lidia Vasconcellos de Sá, Sergio Augusto Lopes de Souza, Felix Mas Milian, Ademir Xavier da Silva
PURPOSE: Recently, there has been a growing interest in a methodology for dose planning in radiosynoviorthesis to substitute fixed activity. Clinical practice based on fixed activity frequently does not embrace radiopharmaceutical dose optimization in patients. The aim of this paper is to propose and discuss a dose planning methodology considering the radiological findings of interest obtained by three-dimensional magnetic resonance imaging combined with Monte Carlo simulation in radiosynoviorthesis treatment applied to hemophilic arthropathy...
April 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28418894/urinary-rkip-p-rkip-is-a-potential-diagnostic-and-prognostic-marker-of-clear-cell-renal-cell-carcinoma
#20
Massimo Papale, Grazia Vocino, Giuseppe Lucarelli, Monica Rutigliano, Margherita Gigante, Maria Teresa Rocchetti, Francesco Pesce, Francesca Sanguedolce, Pantaleo Bufo, Michele Battaglia, Giovanni Stallone, Giuseppe Grandaliano, Giuseppe Carrieri, Loreto Gesualdo, Elena Ranieri
Clear cell Renal Cell Carcinoma (ccRCC) causes over 13,000 deaths each year, and about 20,000 new cases/year in Europe. In most cases, the causes are unknown and, most importantly, there are no reliable biomarkers for the diagnosis and prognosis of this disease. The search for sensitive biomarkers for early diagnosis and prognosis of clear cell Renal Cell Carcinoma (ccRCC) is currently a fast growing field. We carried out proteomics analysis of 93 urinary samples of healthy subjects (HS) and patients affected by ccRCC, prostate cancer (PCa) and chronic kidney disease (CKD), that was able to successfully distinguish each group...
March 18, 2017: Oncotarget
keyword
keyword
3358
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"