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https://www.readbyqxmd.com/read/28926605/assessment-of-common-somatic-mutations-of-egfr-kras-braf-nras-in-pulmonary-non-small-cell-carcinoma-using-iplex%C3%A2-hs-a-new-highly-sensitive-assay-for-the-massarray%C3%A2-system
#1
Bobbie C Sutton, Ryan T Birse, Kevin Maggert, Tammy Ray, Jessica Hobbs, Amobi Ezenekwe, Jason Kazmierczak, Michael Mosko, Joan Kish, Andrew Bullock, Zonggao Shi, M Sharon Stack, Darryl Irwin
Increased early detection and personalized therapy for lung cancer have coincided with greater use of minimally invasive sampling techniques such as endobronchial ultrasound-guided biopsy (EBUS), endoscopic ultrasound-guided biopsy (EUS), and navigational biopsy, as well as thin needle core biopsies. As many lung cancer patients have late stage disease and other comorbidities that make open surgical procedures hazardous, the least invasive biopsy technique with the highest potential specimen yield is now the preferred first diagnostic study...
2017: PloS One
https://www.readbyqxmd.com/read/28926566/guidelines-for-the-management-of-a-brain-death-donor-in-the-rhesus-macaque-a-translational-transplant-model
#2
Tiffany J Zens, Juan S Danobeitia, Peter J Chlebeck, Laura J Zitur, Scott Odorico, Kevin Brunner, Jennifer Coonen, Saverio Capuano, Anthony M D'Alessandro, Kristina Matkowskyj, Weixiong Zhong, Jose Torrealba, Luis Fernandez
INTRODUCTION: The development of a translatable brain death animal model has significant potential to advance not only transplant research, but also the understanding of the pathophysiologic changes that occur in brain death and severe traumatic brain injury. The aim of this paper is to describe a rhesus macaque model of brain death designed to simulate the average time and medical management described in the human literature. METHODS: Following approval by the Institutional Animal Care and Use Committee, a brain death model was developed...
2017: PloS One
https://www.readbyqxmd.com/read/28926412/endoscopic-ultrasound-and-related-technologies-for-the-diagnosis-and-treatment-of-pancreatic-disease-research-gaps-and-opportunities-summary-of-a-national-institute-of-diabetes-and-digestive-and-kidney-diseases-workshop
#3
Linda S Lee, Dana K Andersen, Reiko Ashida, William R Brugge, Mimi I Canto, Kenneth J Chang, Suresh T Chari, John DeWitt, Joo Ha Hwang, Mouen A Khashab, Kang Kim, Michael J Levy, Kevin McGrath, Walter G Park, Aatur Singhi, Tyler Stevens, Christopher C Thompson, Mark D Topazian, Michael B Wallace, Sachin Wani, Irving Waxman, Dhiraj Yadav, Vikesh K Singh
A workshop was sponsored by the National Institute of Diabetes and Digestive and Kidney Diseases to address the research gaps and opportunities in pancreatic endoscopic ultrasound (EUS). The event occurred on July 26, 2017 in 4 sessions: (1) benign pancreatic diseases, (2) high-risk pancreatic diseases, (3) diagnostic and therapeutics, and (4) new technologies. The current state of knowledge was reviewed, with identification of numerous gaps in knowledge and research needs. Common themes included the need for large multicenter consortia of various pancreatic diseases to facilitate meaningful research of these entities; to standardize EUS features of different pancreatic disorders, the technique of sampling pancreatic lesions, and the performance of various therapeutic EUS procedures; and to identify high-risk disease early at the cellular level before macroscopic disease develops...
September 18, 2017: Pancreas
https://www.readbyqxmd.com/read/28926208/ionic-liquids-solvents-and-sorbents-in-sample-preparation
#4
REVIEW
Kevin D Clark, Miranda N Emaus, Marcelino Varona, Ashley N Bowers, Jared L Anderson
The applications of ionic liquids (ILs) and IL-derived sorbents are rapidly expanding. By careful selection of the cation and anion components, the physicochemical properties of ILs can be altered to meet the requirements of specific applications. Reports of IL solvents possessing high selectivity for specific analytes are numerous and continue to motivate the development of new IL-based sample preparation methods that are faster, more selective, and environmentally benign compared to conventional organic solvents...
September 19, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28926065/isomerisation-reactivity-and-coordination-chemistry-of-a-new-hybrid-multi-functional-phosphazane
#5
Alex J Plajer, Kevin Bold, Felix J Rizzuto, Raúl García-Rodríguez, Tanya K Ronson, Dominic S Wright
The unsymmetric P(III)/P(V) cyclodiphosphazane framework [(S[double bond, length as m-dash])(H)P(μ-N(t)Bu)2PNH(t)Bu] (2) provides entry into the mixed chalgogenide dianion [(S)P(μ-N(t)Bu)2P(Se)N(t)Bu](2-), and unique insight into the mechanisms of cis/trans isomerism in phosph(iii)- and phosph(v)-azanes.
September 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28925929/canadian-guidelines-for-controlled-pediatric-donation-after-circulatory-determination-of-death-summary-report
#6
Matthew J Weiss, Laura Hornby, Bram Rochwerg, Michael van Manen, Sonny Dhanani, V Ben Sivarajan, Amber Appleby, Mary Bennett, Daniel Buchman, Catherine Farrell, Aviva Goldberg, Rebecca Greenberg, Ram Singh, Thomas A Nakagawa, William Witteman, Jill Barter, Allon Beck, Kevin Coughlin, Alf Conradi, Cynthia Cupido, Rosanne Dawson, Anne Dipchand, Darren Freed, Karen Hornby, Valerie Langlois, Cheryl Mack, Meagan Mahoney, Deepak Manhas, Christopher Tomlinson, Samara Zavalkoff, Sam D Shemie
OBJECTIVES: Create trustworthy, rigorous, national clinical practice guidelines for the practice of pediatric donation after circulatory determination of death in Canada. METHODS: We followed a process of clinical practice guideline development based on World Health Organization and Canadian Medical Association methods. This included application of Grading of Recommendations Assessment, Development, and Evaluation methodology. Questions requiring recommendations were generated based on 1) 2006 Canadian donation after circulatory determination of death guidelines (not pediatric specific), 2) a multidisciplinary symposium of national and international pediatric donation after circulatory determination of death leaders, and 3) a scoping review of the pediatric donation after circulatory determination of death literature...
September 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28925919/computational-design-of-environmental-sensors-for-the-potent-opioid-fentanyl
#7
Matthew J Bick, Per J Greisen, Kevin J Morey, Mauricio S Antunes, David La, Banumathi Sankaran, Luc Reymond, Kai Johnsson, June I Medford, David Baker
We describe the computational design of proteins that bind the potent analgesic fentanyl. Our approach employs a fast docking algorithm to find shape complementary ligand placement in protein scaffolds, followed by design of the surrounding residues to optimize binding affinity. Co-crystal structures of the highest affinity binder reveal a highly preorganized binding site, and an overall architecture and ligand placement in close agreement with the design model. We use the designs to generate plant sensors for fentanyl by coupling ligand binding to design stability...
September 19, 2017: ELife
https://www.readbyqxmd.com/read/28925529/cerebrovascular-response-to-the-cold-pressor-test-the-critical-role-of-carbon-dioxide
#8
Michael M Tymko, Thijs P Kerstens, Kevin W Wildfong, Philip N Ainslie
In addition to increasing sympathetic nervous activity, blood pressure, and cerebral blood flow (CBF), the cold pressor test (CPT) stimulates pain receptors, which may increase ventilation above metabolic demand; this response likely reduces the partial pressure of end-tidal carbon dioxide (PET CO2 ), and will attenuate elevations in CBF. We hypothesized: (1) CPT would elicit hyperventilation, effectively lowering PET CO2 ; (2) the CBF response will be elevated during an isocapnic (controlled PET CO2 ), compared to a poikilocapnic CPT (uncontrolled PET CO2 ); (3) In response to CPT, the common carotid artery (CCA) will vasodilatate, while the internal carotid artery (ICA) will remain unchanged to help regulate CBF...
September 19, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28925101/personal-use-of-hair-dyes-and-risk-of-leukemia-a-systematic-literature-review-and-meta-analysis
#9
REVIEW
Kevin M Towle, Matthew E Grespin, Andrew D Monnot
The objective of this study was to examine the association between personal use of hair dyes and the risk of leukemia. We conducted a systematic literature review of epidemiology studies reporting leukemia-specific cancer risks among hair dye users, and estimated the meta-relative risk (meta-RR) and corresponding 95% confidence interval (95% CI) of leukemia, comparing hair dye users to nonusers. When data from all 20 studies that met the inclusion criteria were combined, ever use of hair dye was associated with a nonstatistically significant increased risk of leukemia, meta-RR = 1...
September 18, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28924555/early-changes-in-brain-structure-correlate-with-language-outcomes-in-children-with-neonatal-encephalopathy
#10
Kevin A Shapiro, Hosung Kim, Maria Luisa Mandelli, Elizabeth E Rogers, Dawn Gano, Donna M Ferriero, A James Barkovich, Maria Luisa Gorno-Tempini, Hannah C Glass, Duan Xu
Global patterns of brain injury correlate with motor, cognitive, and language outcomes in survivors of neonatal encephalopathy (NE). However, it is still unclear whether local changes in brain structure predict specific deficits. We therefore examined whether differences in brain structure at 6 months of age are associated with neurodevelopmental outcomes in this population. We enrolled 32 children with NE, performed structural brain MR imaging at 6 months, and assessed neurodevelopmental outcomes at 30 months...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28924451/phenotypic-landscape-of-non-conventional-yeast-species-for-different-stress-tolerance-traits-desirable-in-bioethanol-fermentation
#11
Vaskar Mukherjee, Dorota Radecka, Guido Aerts, Kevin J Verstrepen, Bart Lievens, Johan M Thevelein
BACKGROUND: Non-conventional yeasts present a huge, yet barely exploited, resource of yeast biodiversity for industrial applications. This presents a great opportunity to explore alternative ethanol-fermenting yeasts that are more adapted to some of the stress factors present in the harsh environmental conditions in second-generation (2G) bioethanol fermentation. Extremely tolerant yeast species are interesting candidates to investigate the underlying tolerance mechanisms and to identify genes that when transferred to existing industrial strains could help to design more stress-tolerant cell factories...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28924418/optical-coherence-tomography-findings-and-successful-repair-of-retina-detachment-in-knobloch-syndrome
#12
Nazanin Ebrahimiadib, Bobeck S Modjtahedi, Kevin Ferenchak, Thanos D Papakostas, Jason S Mantagos, Demetrios G Vavvas
A 7-year-old Afghani girl was referred to the retina clinic of Massachusetts Eye and Ear for a chronic-appearing, macula-off retinal detachment in the left eye. On examination, best-corrected visual acuity was 20/400 in the right eye and 20/800 in the left eye. She had bilateral horizontal nystagmus. Ophthalmoscopy revealed prominent choroidal vessels, chorioretinal atrophy in the macular area, attenuated retinal vasculature, and pale optic discs bilaterally. Spectral domain optical coherence tomography demonstrated atrophy of the choriocapillaris and the retinal pigment epithelium, retinal thinning, and abnormal foveal contour...
2017: Digital Journal of Ophthalmology: DJO
https://www.readbyqxmd.com/read/28924239/the-autophagy-initiator-ulk1-sensitizes-ampk-to-allosteric-drugs
#13
Toby A Dite, Naomi X Y Ling, John W Scott, Ashfaqul Hoque, Sandra Galic, Benjamin L Parker, Kevin R W Ngoei, Christopher G Langendorf, Matthew T O'Brien, Mondira Kundu, Benoit Viollet, Gregory R Steinberg, Kei Sakamoto, Bruce E Kemp, Jonathan S Oakhill
AMP-activated protein kinase (AMPK) is a metabolic stress-sensing enzyme responsible for maintaining cellular energy homeostasis. Activation of AMPK by salicylate and the thienopyridone A-769662 is critically dependent on phosphorylation of Ser108 in the β1 regulatory subunit. Here, we show a possible role for Ser108 phosphorylation in cell cycle regulation and promotion of pro-survival pathways in response to energy stress. We identify the autophagy initiator Unc-51-like kinase 1 (ULK1) as a β1-Ser108 kinase in cells...
September 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28924019/kinetics-and-biomarkers-of-severe-cytokine-release-syndrome-after-cd19-chimeric-antigen-receptor-modified-t-cell-therapy
#14
Kevin A Hay, Laïla-Aïcha Hanafi, Daniel Li, Juliane Gust, W Conrad Liles, Mark M Wurfel, José A López, Junmei Chen, Dominic Chung, Susanna Harju-Baker, Sindhu Cherian, Xueyan Chen, Stanley R Riddell, David G Maloney, Cameron J Turtle
Lymphodepletion chemotherapy followed by infusion of CD19-specific chimeric antigen receptor-modified T cells (CAR-T) has produced impressive antitumor responses in patients with refractory CD19(+) B cell malignancies, but is often associated with cytokine release syndrome (CRS). Our understanding of CRS continues to evolve, and identification of the kinetics of CRS and predictive clinical and laboratory biomarkers of severity are needed to evaluate strategies to mitigate toxicity. We report the clinical presentation and identify biomarkers of severe CRS in 133 adult patients who received CD19 CAR-T cells...
September 18, 2017: Blood
https://www.readbyqxmd.com/read/28923812/primary-care-and-public-health-perspectives-on-integration-at-the-local-level-a-multi-state-study
#15
Rebekah Pratt, Beth Gyllstrom, Kim Gearin, David Hahn, Lisa VanRaemdonck, Kevin Peterson, Laura-Mae Baldwin
OBJECTIVE: The Institute of Medicine argues that the integration of primary care (PC) and public health (PH) is of paramount importance. We undertook this qualitative study to better understand how these collaborations function. DATA SOURCES: Investigators from PC and PH practice-based research networks in Colorado, Minnesota, Washington, and Wisconsin identified 40 key informants from the PH and PC fields within their respective states. STUDY DESIGN: The key informants participated in standardized, semistructured interviews...
September 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28923806/improving-the-health-of-patients-and-communities-evolving-practice-based-research-pbr-and-collaborations
#16
Kevin Fiscella
This issue illustrates how research from practice-based research networks has evolved to span a spectrum from improving patient-level care and practice quality to improving health within local and global communities. Articles address patient-level improvements (a biomarker for cardiovascular disease progression, late-onset anorexia nervosa, complementary health approaches used by patients, and patient preferences related to antibiotics for acute respiratory infections); practice-level improvements (selection of types of fecal immunochemical tests, practice facilitation, practice registry implementation, community-based outreach, and bidirectional texting); and community-level improvements (primary care-public health partnership, influenza surveillance, and establishing family medicine training abroad)...
September 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28923793/dose-comparison-study-of-allogeneic-mesenchymal-stem-cells-in-patients-with-ischemic-cardiomyopathy-the-trident-study
#17
Victoria Florea, Angela C Rieger, Darcy L Difede, Jill El-Khorazaty, Makoto Natsumeda, Monisha N Banerjee, Bryon A Tompkins, Aisha Khan, Ivonne H Schulman, Ana M Landin, Muzammil Mushtaq, Maureen H Lowery, John Byrnes, Robert C Hendel, Mauricio G Cohen, Krystalenia Valasaki, Marietsy V Pujol, Eduard Ghersin, Roberto Miki, Cindy Delgado, Fouad A Abuzeid, Mayra Vidro-Casiano, Russell Saltzman, Daniel DaFonseca, Lina V Caceres, Kevin N Ramdas, Adam Mendizabal, Alan W Heldman, Raul D Mitrani, Joshua M Hare
Rationale: Cell dose and concentration play crucial roles in phenotypic responses to cell-based therapy for heart failure. Objective: To compare the safety and efficacy of two doses of allogeneic bone marrow-derived human mesenchymal stem cells (hMSC) identically delivered in patients with ischemic cardiomyopathy (ICM). Methods and Results: Thirty patients with ICM received in a blinded manner either 20 million (20M, n=15) or 100 million (100M, n=15) allogeneic hMSCs via transendocardial injection (10 0.5 cc injections/patient)...
September 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28923596/chemically-activated-luminopsins-allow-optogenetic-inhibition-of-distributed-nodes-in-an-epileptic-network-for-non-invasive-and-multi-site-suppression-of-seizure-activity
#18
Jack K Tung, Fu Hung Shiu, Kevin Ding, Robert E Gross
Although optogenetic techniques have proven to be invaluable for manipulating and understanding complex neural dynamics over the past decade, they still face practical and translational challenges in targeting networks involving multiple, large, or difficult-to-illuminate areas of the brain. We utilized inhibitory luminopsins to simultaneously inhibit multiple limbic structures of the rat brain in a hardware-independent and cell-type specific manner to suppress seizure activity in a rat model of epilepsy. In addition to elucidating mechanisms of seizure suppression never directly demonstrated before, this work also illustrates how precise multi-focal control of pathological circuits can be advantageous for the treatment of epilepsy, which may also be applicable to the treatment and understanding of other neurological disorders involving broad neural circuits...
September 15, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28923576/dose-escalation-intensity-modulated-radiotherapy-based-concurrent-chemoradiotherapy-is-effective-for-advanced-stage-thoracic-esophageal-squamous-cell-carcinoma
#19
Chia-Lun Chang, Hsieh-Chih Tsai, Wei-Cheng Lin, Jer-Hwa Chang, Han-Lin Hsu, Jyh-Ming Chow, Kevin Sheng-Po Yuan, Alexander T H Wu, Szu-Yuan Wu
PURPOSE: No studies have investigated the effects of irradiation-dose escalation intensity-modulated radiotherapy (IMRT)-based concurrent chemoradiotherapy (CCRT) in patients with thoracic esophageal squamous cell carcinoma (TESCC). PATIENTS AND METHODS: We analyzed data from patients with TESCC who were enrolled in the Taiwan Cancer Registry database. To compare treatment outcomes, the patients were categorized into two groups according to their radiotherapy doses: group 1, who received CCRT<60Gy with IMRT, and group 2, who received CCRT≥60Gy with IMRT...
September 15, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28923562/intralesional-injection-of-collagenase-clostridium-histolyticum-may-increase-the-risk-of-late-onset-penile-fracture
#20
REVIEW
Jonathan A Beilan, Jared J Wallen, Adam S Baumgarten, Kevin N Morgan, Justin L Parker, Rafael E Carrion
INTRODUCTION: The use of intralesional injection of collagenase Clostridium histolyticum (CCH) has become a valid treatment option in the management of Peyronie's disease (PD). Multiple studies have shown the drug's safety and efficacy. However, sparse literature exists on the utility of the injection protocol's 14-day "observation period," in which patients are instructed to abstain from all sexual activity. AIM: To summarize the contemporary literature and report on our series of patients treated with CCH in an effort to explore the effectiveness of the postinjection observation period...
September 8, 2017: Sexual Medicine Reviews
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