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https://www.readbyqxmd.com/read/28444768/implantable-doppler-monitoring-of-buried-free-flaps-during-vascularized-lymph-node-transfer
#1
Chad M Teven, Adrian S H Ooi, Amir Inbal, David W Chang
BACKGROUND AND OBJECTIVES: Reliable flap monitoring is crucial to the success of free tissue transfer, including vascularized lymph node transfer (VLNT). However, no large-scale study has examined implantable Doppler monitoring in VLNT. We aimed to determine whether an implantable Doppler system can reliably monitor flap perfusion during VLNT and also to calculate the sensitivity and specificity of this system for detecting compromise in the monitored vessel. METHODS: An analysis of prospectively collected data of patients who underwent buried VLNT with implantable Doppler monitoring between 2014 and 2015 was performed...
April 25, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28443217/malignant-peripheral-nerve-sheath-tumor-of-the-c2-nerve-root-case-report
#2
Joshua D Burks, Robert G Briggs, Chad A Glenn, John C Greenert, Cordell M Baker, Keren Bartal, Greg A Krempl, Michael E Sughrue
Here we present the case of a 36-year-old man who was found to have a symptomatic malignant neural sheath tumor growing from the C2 nerve root following a period of progressively worsening headaches. The patient was successfully treated with surgical resection resulting in resolution of cranial nerve deficits. Though uncommon, malignant peripheral nerve sheath tumor must be considered in the differential diagnosis of tumors involving the cervical nerve roots and carotid space.
April 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28441861/anionic-polymer-and-quantum-dot-excipients-to-facilitate-sirna-release-and-self-reporting-of-disassembly-in-stimuli-responsive-nanocarrier-formulations
#3
Chad T Greco, Jason C Andrechak, Thomas H Epps Iii, Millicent O Sullivan
The incorporation of anionic excipients into polyplexes is a promising strategy for modulating siRNA binding vs. release and integrating diagnostic capabilities; however, specific design criteria and structure-function relationships are needed to facilitate the development of nanocarrier-based theranostics. Herein, we incorporated poly(acrylic acid) (PAA) and quantum dot (QD) excipients into photolabile siRNA polyplexes to increase gene silencing efficiencies by up to 100% and enable self-reporting of nanocarrier disassembly...
April 25, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28441271/alternative-payment-models-and-urology
#4
Deborah R Kaye, David C Miller, Chad Ellimoottil
PURPOSE OF REVIEW: The Medicare Access and CHIP Reauthorization Act (MACRA) is a historic bill that was recently passed that establishes how quality measurement and practice patterns will affect physician reimbursement. Alternative payment models (APMs) are an essential component of MACRA and Medicare's vision of paying for high-value care. This review describes APMs in the context of MACRA and their impact on urology. RECENT FINDINGS: The majority of urologists will be affected by MACRA...
April 22, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28440096/strategies-in-ebola-virus-disease-evd-diagnostics-at-the-point-of-care
#5
Chad T Coarsey, Nwadiuto Esiobu, Ramswamy Narayanan, Mirjana Pavlovic, Hadi Shafiee, Waseem Asghar
Ebola virus disease (EVD) is a devastating, highly infectious illness with a high mortality rate. The disease is endemic to regions of Central and West Africa, where there is limited laboratory infrastructure and trained staff. The recent 2014 West African EVD outbreak has been unprecedented in case numbers and fatalities, and has proven that such regional outbreaks can become a potential threat to global public health, as it became the source for the subsequent transmission events in Spain and the USA. The urgent need for rapid and affordable means of detecting Ebola is crucial to control the spread of EVD and prevent devastating fatalities...
April 25, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28439351/residents-exposure-to-educational-experiences-in-facilitating-hospital-discharges
#6
Eric Young, Chad Stickrath, Monica McNulty, Aaron J Calderon, Elizabeth Chapman, Jed D Gonzalo, Ethan F Kuperman, Max Lopez, Christopher J Smith, Joseph R Sweigart, Cecelia N Theobald, Robert E Burke
BACKGROUND: There is an incomplete understanding of the most effective approaches for motivating residents to adopt guideline-recommended practices for hospital discharges. OBJECTIVE: We evaluated internal medicine (IM) residents' exposure to educational experiences focused on facilitating hospital discharges and compared those experiences based on correlations with residents' perceived responsibility for safely transitioning patients from the hospital. METHODS: A cross-sectional, multi-center survey of IM residents at 9 US university- and community-based training programs in 2014-2015 measured exposure to 8 transitional care experiences, their perceived impact on care transitions attitudes, and the correlation between experiences and residents' perceptions of postdischarge responsibility...
April 2017: Journal of Graduate Medical Education
https://www.readbyqxmd.com/read/28438292/correlation-of-crtc1-3-maml2-fusion-status-grade-and-survival-in-mucoepidermoid-carcinoma
#7
Andrew C Birkeland, Susan K Foltin, Nicole L Michmerhuizen, Rebecca C Hoesli, Andrew J Rosko, Serena Byrd, Megan Yanik, Jacques E Nor, Carol R Bradford, Mark E Prince, Thomas E Carey, Jonathan B McHugh, Matthew E Spector, J Chad Brenner
OBJECTIVE: Mucoepidermoid carcinoma (MEC) is the most common malignant tumor of the salivary glands. Tumor stage and grade have historically been important predictors of survival. An oncogenic CRTC1- or CRTC3-MAML2 gene fusion has been identified in a number of MECs. Historically, these gene fusions have been associated with lower grade tumors and better survival. However, reported gene fusion rates and prognosis varies widely across studies, and have not controlled for tumor grade. We sought to identify gene fusion rates and outcomes in our cohort of MEC patients...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28436107/a-complete-4dct-ventilation-functional-avoidance-virtual-trial-developing-strategies-for-prospective-clinical-trials
#8
Timothy Waxweiler, Leah Schubert, Quentin Diot, Austin Faught, Kelly Stuhr, Richard Castillo, Edward Castillo, Thomas Guerrero, Chad Rusthoven, Laurie Gaspar, Brian Kavanagh, Moyed Miften, Yevgeniy Vinogradskiy
INTRODUCTION: 4DCT-ventilation is an exciting new imaging modality that uses 4DCT data to calculate lung-function maps. Because 4DCTs are acquired as standard of care for lung cancer patients undergoing radiotherapy, 4DCT-ventiltation provides functional information at no extra dosimetric or monetary cost to the patient. The development of clinical trials is underway to use 4DCT-ventilation imaging to spare functional lung in patients undergoing radiotherapy. The purpose of this work was to perform a virtual trial using retrospective data to develop the practical aspects of a 4DCT-ventilation functional avoidance clinical trial...
April 24, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28436086/male-clinical-norms-and-sex-differences-on-the-eating-disorder-inventory-edi-and-eating-disorder-examination-questionnaire-ede-q
#9
Kathryn E Smith, Tyler B Mason, Stuart B Murray, Scott Griffiths, Rachel C Leonard, Chad T Wetterneck, Brad E R Smith, Nicholas R Farrell, Bradley C Riemann, Jason M Lavender
OBJECTIVE: Evidence indicates that males account for a significant minority of patients with eating disorders (EDs). However, prior research has been limited by inclusion of small and predominantly non-clinical samples of males. This study aimed to (1) provide male clinical norms for widely used ED measures (Eating Disorder Examination Questionnaire [EDE-Q] and Eating Disorder Inventory-3 [EDI-3]) and (2) examine sex differences in overall ED psychopathology. METHOD: Participants were 386 male and 1,487 female patients with an ED diagnosis aged 16 years and older who completed the EDE-Q and EDI-3 upon admission to a residential or partial hospital ED treatment program...
April 24, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28435221/phenotypic-evaluation-and-in-silico-admet-properties-of-novel-arylimidamides-in-acute-mouse-models-of-trypanosoma-cruzi-infection
#10
Cristiane França da Silva, Denise da Gama Jaén Batista, Julianna Siciliano de Araújo, Edézio Ferreira Cunha-Junior, Chad E Stephens, Moloy Banerjee, Abdelbasset A Farahat, Senol Akay, Mary K Fisher, David W Boykin, Maria de Nazaré Correia Soeiro
Arylimidamides (AIAs), previously termed as reversed amidines, present a broad spectrum of activity against intracellular microorganisms. In the present study, three novel AIAs were evaluated in a mouse model of Trypanosoma cruzi infection, which is the causative agent of Chagas disease. The bis-AIAs DB1957, DB1959 and DB1890 were chosen based on a previous screening of their scaffolds that revealed a very promising trypanocidal effect at nanomolar range against both the bloodstream trypomastigotes (BTs) and the intracellular forms of the parasite...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28434848/evaluating-the-effect-of-unstructured-clinical-information-on-clinical-decision-support-appropriateness-ratings
#11
Andrew K Moriarity, Aaron Green, Chad Klochko, Matthew O'Brien, Safwan Halabi
OBJECTIVE: To determine the appropriateness rating (AR) of advanced inpatient imaging requests that were not rated by prospective, point-of-care clinical decision support (CDS) using computerized provider order entry. MATERIALS AND METHODS: During 30-day baseline and intervention periods, CDS generated an AR for advanced inpatient imaging requests (nuclear medicine, CT, and MRI) using provider-selected structured indications from pull-down menus in the computerized provider order entry portal...
April 20, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28434541/phytoliths-indicate-significant-arboreal-cover-at-sahelanthropus-type-locality-tm266-in-northern-chad-and-a-decrease-in-later-sites
#12
Alice Novello, Doris Barboni, Florence Sylvestre, Anne-Elisabeth Lebatard, Christine Paillès, Didier L Bourlès, Andossa Likius, Hassane Taisso Mackaye, Patrick Vignaud, Michel Brunet
We analyzed phytolith and diatom remains preserved at 45 Miocene and Pliocene localities dated between 8 and 1 Ma in northern Chad (16-17°N). Some of these localities yielded cranial remains, lower jaws, and teeth of the hominin species Australopithecus bahrelghazali (∼3.6 Ma) and Sahelanthropus tchadensis (∼7 Ma). Of the 111 sediment samples analyzed, 41 yielded phytoliths, 20 yielded diatoms, and seven yielded both phytoliths and diatoms. Freshwater planktonic and tychoplanktonic diatom species, indicative of lacustrine conditions, are dominant (>91%) in the samples...
May 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28434237/factor-structure-and-invariance-of-an-adolescent-risks-and-needs-assessment
#13
Paul S Strand, Chad M Gotch, Brian F French, Jessica L Beaver
The Washington Assessment of Risks and Needs of Students is a youth self-report screening instrument developed for use by high school and juvenile court personnel faced with the legal and practical challenges of high truancy and dropout rates. It purports to measure six facets of risks and needs of youth relevant to improving school outcomes. In this study, a bifactor model measuring a general factor and six specific factors was examined for fit and invariance across different groups defined by sex and race/ethnicity, with a sample of court-petitioned high school students ( N = 937; ages 13-17 years)...
April 1, 2017: Assessment
https://www.readbyqxmd.com/read/28433771/a-versatile-tumor-gene-deletion-system-reveals-a-crucial-role-for-fgfr1-in-breast-cancer-metastasis
#14
Wei Wang, Yanling Meng, Bingning Dong, Jie Dong, Michael M Ittmann, Chad J Creighton, Lu Yang, Hong Zhang, Tao Shen, Jianghua Wang, David R Rowley, Yi Li, Fengju Chen, David D Moore, Feng Yang
RCAS avian viruses have been used to deliver oncogene expression and induce tumors in transgenic mice expressing the virus receptor TVA. Here we report the generation and characterization of a novel RCAS-Cre-IRES-PyMT (RCI-PyMT) virus designed to specifically knockout genes of interest in tumors generated in appropriate mutant mouse hosts. FGF receptor 1 (FGFR1) is a gene that is amplified in human breast cancer, but there have been no definitive studies on its function in mammary tumorigenesis, progression, and metastasis in vivo in spontaneous tumors in mice...
April 20, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28433411/metastatic-nasopharyngeal-carcinoma-patterns-of-care-and-survival-for-patients-receiving-chemotherapy-with-and-without-local-radiotherapy
#15
Chad G Rusthoven, Ryan M Lanning, Bernard L Jones, Arya Amini, Matthew Koshy, David J Sher, Daniel W Bowles, Jessica D McDermott, Antonio Jimeno, Sana D Karam
BACKGROUND AND PURPOSE: Radiotherapy (RT) to the primary nasopharyngeal tumor is frequently offered to patients with metastatic nasopharyngeal carcinoma (mNPC). However, only limited data exist to support RT in this setting. We used the National Cancer Database (NCDB) to evaluate outcomes for mNPC patients receiving chemotherapy with and without local RT. METHODS: The NCDB was queried for patients with mNPC with synchronous metastatic disease at diagnosis who received chemotherapy...
April 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28433079/utilization-of-whole-exome-next-generation-sequencing-variant-read-frequency-for-detection-of-lesion-specific-somatic-loss-of-heterozygosity-in-a-neurofibromatosis-type-1-cohort-with-tibial-pseudarthrosis
#16
Rebecca L Margraf, Chad VanSant-Webb, David Sant, John Carey, Heather Hanson, Jacques D'Astous, Dave Viskochil, David A Stevenson, Rong Mao
A subset of neurofibromatosis type 1 patients develop tibial dysplasia, which can lead to pseudarthrosis. The tissue from the tibial pseudarthrosis region commonly has a somatic second hit in NF1: single-nucleotide variants, small deletions, or loss of heterozygosity (LOH). We used exome next-generation sequencing (NGS) variant frequency data (allelic imbalance analysis) to detect somatic LOH in pseudarthrosis tissue from three individuals with clinically and diagnostically confirmed neurofibromatosis type 1, and verified the results with microarray...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28432019/feasibility-of-mini-tablets-as-a-flexible-drug-delivery-tool
#17
Biplob Mitra, Jessica Chang, Sy-Juen Wu, Chad N Wolfe, Robert L Ternik, Thomas Z Gunter, Michael C Victor
Mini-tablets have potential applications as a flexible drug delivery tool in addition to their generally perceived use as multi-particulates. That is, mini-tablets could provide flexibility in dose finding studies and/or allow for combination therapies in the clinic. Moreover, mini-tablets with well controlled quality attributes could be a prudent choice for administering solid dosage forms as a single unit or composite of multiple mini-tablets in patient populations with swallowing difficulties (e.g., pediatric and geriatric populations)...
April 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28430909/clinical-trial-principles-and-endpoint-definitions-for-paravalvular-leaks-in-surgical-prosthesis-an-expert-statement
#18
Carlos E Ruiz, Rebecca T Hahn, Alain Berrebi, Jeffrey S Borer, Donald E Cutlip, Greg Fontana, Gino Gerosa, Reda Ibrahim, Vladimir Jelnin, Hasan Jilaihawi, E Marc Jolicoeur, Chad Kliger, Itzhak Kronzon, Jonathon Leipsic, Francesco Maisano, Xavier Millan, Patrick Nataf, Patrick T O'Gara, Philippe Pibarot, Stephen R Ramee, Charanjit S Rihal, Josep Rodes-Cabau, Paul Sorajja, Rakesh Suri, Julie A Swain, Zoltan G Turi, E Murat Tuzcu, Neil J Weissman, Jose L Zamorano, Patrick W Serruys, Martin B Leon
The VARC (Valve Academic Research Consortium) for transcatheter aortic valve replacement set the standard for selecting appropriate clinical endpoints reflecting safety and effectiveness of transcatheter devices, and defining single and composite clinical endpoints for clinical trials. No such standardization exists for circumferentially sutured surgical valve paravalvular leak (PVL) closure. This document seeks to provide core principles, appropriate clinical endpoints, and endpoint definitions to be used in clinical trials of PVL closure devices...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28430825/discovery-and-fine-mapping-of-adiposity-loci-using-high-density-imputation-of-genome-wide-association-studies-in-individuals-of-african-ancestry-african-ancestry-anthropometry-genetics-consortium
#19
Maggie C Y Ng, Mariaelisa Graff, Yingchang Lu, Anne E Justice, Poorva Mudgal, Ching-Ti Liu, Kristin Young, Lisa R Yanek, Mary F Feitosa, Mary K Wojczynski, Kristin Rand, Jennifer A Brody, Brian E Cade, Latchezar Dimitrov, Qing Duan, Xiuqing Guo, Leslie A Lange, Michael A Nalls, Hayrettin Okut, Salman M Tajuddin, Bamidele O Tayo, Sailaja Vedantam, Jonathan P Bradfield, Guanjie Chen, Wei-Min Chen, Alessandra Chesi, Marguerite R Irvin, Badri Padhukasahasram, Jennifer A Smith, Wei Zheng, Matthew A Allison, Christine B Ambrosone, Elisa V Bandera, Traci M Bartz, Sonja I Berndt, Leslie Bernstein, William J Blot, Erwin P Bottinger, John Carpten, Stephen J Chanock, Yii-Der Ida Chen, David V Conti, Richard S Cooper, Myriam Fornage, Barry I Freedman, Melissa Garcia, Phyllis J Goodman, Yu-Han H Hsu, Jennifer Hu, Chad D Huff, Sue A Ingles, Esther M John, Rick Kittles, Eric Klein, Jin Li, Barbara McKnight, Uma Nayak, Barbara Nemesure, Adesola Ogunniyi, Andrew Olshan, Michael F Press, Rebecca Rohde, Benjamin A Rybicki, Babatunde Salako, Maureen Sanderson, Yaming Shao, David S Siscovick, Janet L Stanford, Victoria L Stevens, Alex Stram, Sara S Strom, Dhananjay Vaidya, John S Witte, Jie Yao, Xiaofeng Zhu, Regina G Ziegler, Alan B Zonderman, Adebowale Adeyemo, Stefan Ambs, Mary Cushman, Jessica D Faul, Hakon Hakonarson, Albert M Levin, Katherine L Nathanson, Erin B Ware, David R Weir, Wei Zhao, Degui Zhi, Donna K Arnett, Struan F A Grant, Sharon L R Kardia, Olufunmilayo I Oloapde, D C Rao, Charles N Rotimi, Michele M Sale, L Keoki Williams, Babette S Zemel, Diane M Becker, Ingrid B Borecki, Michele K Evans, Tamara B Harris, Joel N Hirschhorn, Yun Li, Sanjay R Patel, Bruce M Psaty, Jerome I Rotter, James G Wilson, Donald W Bowden, L Adrienne Cupples, Christopher A Haiman, Ruth J F Loos, Kari E North
Genome-wide association studies (GWAS) have identified >300 loci associated with measures of adiposity including body mass index (BMI) and waist-to-hip ratio (adjusted for BMI, WHRadjBMI), but few have been identified through screening of the African ancestry genomes. We performed large scale meta-analyses and replications in up to 52,895 individuals for BMI and up to 23,095 individuals for WHRadjBMI from the African Ancestry Anthropometry Genetics Consortium (AAAGC) using 1000 Genomes phase 1 imputed GWAS to improve coverage of both common and low frequency variants in the low linkage disequilibrium African ancestry genomes...
April 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28430445/controlling-the-roughness-of-langmuir-blodgett-monolayers
#20
Gregory J Silverberg, Arthur A McClelland, Sarah Griesse-Nascimento, Camille Girabawe, Julian P Kadow, Lakshminarayanan Mahadevan, Chad David Vecitis
Controlling the surface roughness of thin films with nanoscale precision is of significant interest for the rational design of surface coatings. Although wrinkling and buckling of Langmuir monolayers under compression has been demonstrated for several years, there is currently no method to precisely control this behavior during compression and thereby modify the surface roughness of deposited films. Here, we combine conventional Langmuir phase analysis with a novel dynamic viscoelasticity measurement to simply and accurately observe the jamming transition of monolayers of silica spheres, graphene oxide, and surfactant...
April 21, 2017: Journal of Physical Chemistry. B
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