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https://www.readbyqxmd.com/read/27914177/virtual-touch-tissue-imaging-and-quantification-in-the-evaluation-of-thyroid-nodules
#1
Hang Zhou, Xian-Li Zhou, Hui-Xiong Xu, Dan-Dan Li, Bo-Ji Liu, Yi-Feng Zhang, Jun-Mei Xu, Xiao-Wan Bo, Xiao-Long Li, Le-Hang Guo, Shen Qu
OBJECTIVES: To investigate the diagnostic performance of a 2-dimensional shear wave elastographic technique (Virtual Touch tissue imaging and quantification [VTIQ]; Siemens Medical Solutions, Mountain View, CA) for predicting thyroid malignancy. METHODS: A total of 302 thyroid nodules underwent conventional sonography and VTIQ before fine-needle aspiration examination or surgery. Compared with histopathologic or cytologic results in combination with follow-up, the diagnostic performance of various shear wave speed (SWS) indices (minimum [SWSmin ], maximum [SWSmax ], and mean [SWSmean ]) on VTIQ as well as conventional sonographic features for predicting thyroid malignancy was evaluated in all of the nodules...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27913742/frailty-assessment-in-hospitalized-older-adults-using-the-electronic-health-record
#2
Deborah A Lekan, Debra C Wallace, Thomas P McCoy, Jie Hu, Susan G Silva, Heather E Whitson
INTRODUCTION: Frailty, a clinical syndrome of decreased physiologic reserve and dysregulation in multiple physiologic systems, is associated with increased risk for adverse outcomes. PURPOSE: The aim of this retrospective, cross-sectional, correlational study was to characterize frailty in older adults admitted to a tertiary-care hospital using a biopsychosocial frailty assessment and to determine associations between frailty and time to in-hospital mortality and 30-day rehospitalization...
December 2, 2016: Biological Research for Nursing
https://www.readbyqxmd.com/read/27913735/preoperative-pulmonary-rehabilitation-for-marginal-function-lung-cancer-patients
#3
Asra Hashmi, Frank A Baciewicz, Ayman O Soubani, Shirish M Gadgeel
BACKGROUND: This study aimed to evaluate the impact of preoperative pulmonary rehabilitation in lung cancer patients undergoing pulmonary resection surgery with marginal lung function. METHODS: Short-term outcomes of 42 patients with forced expiratory volume in 1 s < 1.6 L who underwent lung resection between 01/2006 and 12/2010 were reviewed retrospectively. They were divided into group A (no preoperative pulmonary rehabilitation) and group B (receiving pulmonary rehabilitation)...
December 2, 2016: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/27913589/integrin-linked-kinase-ilk-deletion-disrupts-oligodendrocyte-development-by-altering-cell-cycle
#4
Rashad Hussain, Wendy B Macklin
: During development, oligodendrocytes are initially specified, after which oligodendrocyte precursor cells (OPCs) migrate and proliferate before differentiating into myelinating cells. Lineage specific programming of oligodendrocytes results from sensing environmental cues through membrane-bound receptors and related intracellular signaling molecules. Integrin linked kinase (ILK) is an important protein expressed at the inner margins of the plasma membrane, which can mediate some of these signals...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27913473/first-line-therapy-for-young-patients-with-cll
#5
Nitin Jain, Susan O'Brien
A 61-year-old man with a history of chronic lymphocytic leukemia (CLL) presents with complaints of worsening fatigue and night sweats. He was diagnosed with CLL 3 years ago on routine blood count testing. He has no major medical comorbidities. On examination, he has several 2- to 3-cm lymph nodes in the cervical and axillary area. Spleen is palpable 5 cm below the costal margin. Blood counts show lymphocytosis with thrombocytopenia and anemia. Prognostic markers include deletion 13q by fluorescence in situ hybridization analysis and mutated IGHV You are asked by the hematology fellow you are supervising about the best treatment of this patient...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913282/proteomics-provides-insights-into-biological-pathways-altered-by-plant-growth-promoting-bacteria-and-arbuscular-mycorrhiza-in-sorghum-grown-in-marginal-soil
#6
Faten Dhawi, Rupali Datta, Wusirika Ramakrishna
Sorghum is an economically important crop, a model system for gene discovery and a biofuel source. Sorghum seedlings were subjected to three microbial treatments, plant growth promoting bacteria (B), arbuscular mycorrhizal (AM) fungi mix with two Glomus species (G. aggregatum and G. etunicatum), Funelliformis mosseae and Rhizophagus irregularis (My), and B and My combined (My+B). Proteomic analysis was conducted followed by integration with metabolite, plant biomass and nutrient data. Out of 366 differentially expressed proteins in sorghum roots, 44 upregulated proteins overlapping among three treatment groups showed positive correlation with sorghum biomass or element uptake or both...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27913174/high-gain-driven-right-leg-circuit-for-dry-electrode-systems
#7
Federico N Guerrero, Enrique Spinelli
This paper presents an improved driven right leg (DRL) circuit compensation together with a practical implementation. The proposed design allows to increase common mode voltage attenuation compared with the widely used dominant pole compensation while maintaining the same proven stability margin and design criteria, and requiring only a modification of its passive feedback network. A sample implementation of the proposed DRL was obtained estimating the values of interference model parameters for a dry electrode measurement system...
November 29, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27912908/childhood-sexual-abuse-and-substance-abuse-a-gender-paradox
#8
Lil Tonmyr, Margot Shields
We examine associations between childhood sexual abuse (CSA) and substance abuse, the role of mental health indicators as mediators in these associations and whether or not associations differ by gender. Data are from 14,063 respondents aged 18-76 years from the 2004-2005 Canadian Gender, Alcohol, and Culture: An International Study (GENACIS). Multiple logistic regression models were used to examine associations between CSA and substance abuse variables, controlling for socio-demographic factors. Odds were adjusted by indicators of mental health to assess if these variables mediated associations between CSA and substance abuse...
November 29, 2016: Child Abuse & Neglect
https://www.readbyqxmd.com/read/27912901/individualized-versus-conventional-ovarian-stimulation-for-in%C3%A2-vitro-fertilization-a-multicenter-randomized-controlled-assessor-blinded-phase-3-noninferiority-trial
#9
Anders Nyboe Andersen, Scott M Nelson, Bart C J M Fauser, Juan Antonio García-Velasco, Bjarke M Klein, Joan-Carles Arce
OBJECTIVE: To compare the efficacy and safety of follitropin delta, a new human recombinant FSH with individualized dosing based on serum antimüllerian hormone (AMH) and body weight, with conventional follitropin alfa dosing for ovarian stimulation in women undergoing IVF. DESIGN: Randomized, multicenter, assessor-blinded, noninferiority trial (ESTHER-1). SETTING: Reproductive medicine clinics. PATIENT(S): A total of 1,329 women (aged 18-40 years)...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27912748/challenges-to-access-and-provision-of-palliative-care-for-people-who-are-homeless-a-systematic-review-of-qualitative-research
#10
Briony F Hudson, Kate Flemming, Caroline Shulman, Bridget Candy
BACKGROUND: People who are homeless or vulnerably housed are a marginalized group who often experience high rates of morbidity and die young as a result of complex problems. Access to health care and support can be challenging, with access to palliative care even more so. This review presents a synthesis of published qualitative research exploring from the perspective of homeless people and those working to support them, current challenges to palliative care access and provision, in addition to suggestions for what may improve palliative care for this population...
December 3, 2016: BMC Palliative Care
https://www.readbyqxmd.com/read/27912139/repair-of-calvarial-bone-defects-in-mice-using-electrospun-polystyrene-scaffolds-combined-with-%C3%AE-tcp-or-gold-nanoparticles
#11
Lisa Terranova, Diana Maria Dragusin, Romain Mallet, Eugeniu Vasile, Izabela-Cristina Stancu, Catherine Behets, Daniel Chappard
Non-biodegradable porous polystyrene (PS) scaffolds, composed of microfibers, have been prepared by electrospinning for the reconstruction of large bone defects. PS microfibers were prepared by incorporating β-TCP grains inside the polymer or grafting gold nanoparticles surface functionalized with mercaptosuccinic acid. Cytocompatibility of the three types of scaffolds (PS, β-TCP-PS and Au-PS) was studied by seeding human mesenchymal stem cells. Biocompatibility was evaluated by implanting β-TCP-PS and Au-PS scaffolds into a critical size (4mm) calvarial defect in mice...
November 8, 2016: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/27911807/enhanced-limonene-production-in-cyanobacteria-reveals-photosynthesis-limitations
#12
Xin Wang, Wei Liu, Changpeng Xin, Yi Zheng, Yanbing Cheng, Su Sun, Runze Li, Xin-Guang Zhu, Susie Y Dai, Peter M Rentzepis, Joshua S Yuan
Terpenes are the major secondary metabolites produced by plants, and have diverse industrial applications as pharmaceuticals, fragrance, solvents, and biofuels. Cyanobacteria are equipped with efficient carbon fixation mechanism, and are ideal cell factories to produce various fuel and chemical products. Past efforts to produce terpenes in photosynthetic organisms have gained only limited success. Here we engineered the cyanobacterium Synechococcus elongatus PCC 7942 to efficiently produce limonene through modeling guided study...
November 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911678/negative-religious-rhetoric-in-the-lives-of-black-cisgender-queer-emerging-adult-men-a-qualitative-analysis
#13
Ja'Nina J Garrett-Walker, Vanessa M Torres
Given the intersection of racial, religious, and sexual identities for Black queer populations, the current study examines sexuality related religious rhetoric. Twenty Black cisgender queer men were recruited to participate in a qualitative interview. Using thematic analysis, the research team identified four themes: negative religious rhetoric, personal consequences of negative religious rhetoric, social consequences of negative religious rhetoric, and growth from negative religious rhetoric. Participants explained the pervasiveness of negative religious rhetoric within their churches and family structures...
December 2, 2016: Journal of Homosexuality
https://www.readbyqxmd.com/read/27911675/on-safety-margin-for-drug-interchangeability
#14
Jiayin Zheng, Shein-Chung Chow, Fuyu Song
As more and more generic (or biosimilar) drug products become available in the market place, it is a concern whether the approved generic (or biosimilar) drug products are safe and efficacious and hence can be used interchangeably. According to current regulation, most regulatory agencies such as the United States Food and Drug Administration (FDA) indicate an approved generic (or biosimilar) drug product can serve as a substitute for the innovative drug product. Bioequivalence (biosimilarity) assessment for regulatory approval among generic copies (or biosimilars) of the innovative drug product are not required...
December 2, 2016: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/27911456/mid-term-results-of-recap-magnum-taperloc-metal-on-metal-total-hip-arthroplasty-with-mean-follow-up-of-7-1-years
#15
Antonios A Koutalos, Aristotelis Kourtis, Ian C Clarke, Evert J Smith
INTRODUCTION: Despite enthusiasm for metal-on-metal bearings, disappointing short- to mid-term outcomes has all but halted the use of this bearing articulation. This review presents mid-term results for the ReCap Magnum total hip replacement. PATIENTS AND METHODS: This prospective study evaluated 79 ReCap/Magnum/Taperloc total hip replacements with mean follow-up of 7.1 (range 3.7-9.2) years. 43 were female and 36 male. Metal ions were measured and radiographic measurement included a 'margin of safety' angle to quantify risk of edge loading...
December 2, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27911412/reproducible-arterial-denudation-injury-by-infrarenal-abdominal-aortic-clamping-in-a-murine-model
#16
Aditya S Shirali, Austin I McDonald, Julia J Mack, M Luisa Iruela-Arispe
Percutaneous vascular interventions uniformly result in arterial denudation injuries that subsequently lead to thrombosis and restenosis. These complications can be attributed to impairments in re-endothelialization within the wound margins. Yet, the cellular and molecular mechanisms of re-endothelialization remain to be defined. While several animal models to study re-endothelialization after arterial denudation are available, few are performed in the mouse because of surgical limitations. This undermines the opportunity to exploit transgenic mouse lines and investigate the contribution of specific genes to the process of re-endothelialization...
November 24, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911295/efficacy-and-safety-of-plasma-exchange-with-5-albumin-to-modify-cerebrospinal-fluid-and-plasma-amyloid-%C3%AE-concentrations-and-cognition-outcomes-in%C3%A2-alzheimer-s-disease-patients-a%C3%A2-multicenter-randomized-controlled-clinical-trial
#17
Mercè Boada, Fernando Anaya, Pilar Ortiz, Javier Olazarán, Joshua R Shua-Haim, Thomas O Obisesan, Isabel Hernández, Joan Muñoz, Mar Buendia, Montserrat Alegret, Asunción Lafuente, Lluís Tárraga, Laura Núñez, Mireia Torres, Joan Ramon Grifols, Isidre Ferrer, Oscar L Lopez, Antonio Páez
BACKGROUND: Studies conducted in animal models and humans suggest the presence of a dynamic equilibrium of amyloid-β (Aβ) peptide between cerebrospinal fluid (CSF) and plasma compartments. OBJECTIVE: To determine whether plasma exchange (PE) with albumin replacement was able to modify Aβ concentrations in CSF and plasma as well as to improve cognition in patients with mild-moderate Alzheimer's disease (AD). METHODS: In a multicenter, randomized, patient- and rater-blind, controlled, parallel-group, phase II study, 42 AD patients were assigned (1 : 1) to PE treatment or control (sham) groups...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911249/international-multicenter-cohort-study-of-pediatric-brain-arteriovenous-malformations-part-2-outcomes-after-stereotactic-radiosurgery
#18
Robert M Starke, Dale Ding, Hideyuki Kano, David Mathieu, Paul P Huang, Caleb Feliciano, Rafael Rodriguez-Mercado, Luis Almodovar, Inga S Grills, Danilo Silva, Mahmoud Abbassy, Symeon Missios, Douglas Kondziolka, Gene H Barnett, L Dade Lunsford, Jason P Sheehan
OBJECTIVE Pediatric patients (age < 18 years) harboring brain arteriovenous malformations (AVMs) are burdened with a considerably higher cumulative lifetime risk of hemorrhage than adults. Additionally, the pediatric population was excluded from recent prospective comparisons of intervention versus conservative management for unruptured AVMs. The aims of this multicenter, retrospective cohort study are to analyze the outcomes after stereotactic radiosurgery for unruptured and ruptured pediatric AVMs. METHODS We analyzed and pooled AVM radiosurgery data from 7 participating in the International Gamma Knife Research Foundation...
December 2, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27910890/adjuvant-radiotherapy-for-locally-advanced-upper-tract-urothelial-carcinoma
#19
Yun-Ching Huang, Ying-Hsu Chang, Kuo-Hsiung Chiu, Alan W Shindel, Chia-Hsuan Lai
There is relatively little literature on adjuvant radiotherapy after radical nephroureterectomy with bladder cuff excision (RNU) for patients with upper tract urothelial carcinoma (UTUC). This study was designed to determine the efficacy of adjuvant radiotherapy for patients with pT3N0M0 UTUC. We retrospectively reviewed 198 patients treated with RNU between December 2001 and January 2015. Postoperative radiotherapy was administered in 40 (20.2%) of patients. Patients who received radiotherapy were younger than those that did not (65...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910850/the-guanine-nucleotide-exchange-factor-net1-facilitates-the-specification-of-dorsal-cell-fates-in-zebrafish-embryos-by-promoting-maternal-%C3%AE-catenin-activation
#20
Shi Wei, Miaomiao Dai, Zhaoting Liu, Yuanqing Ma, Hanqiao Shang, Yu Cao, Qiang Wang
Wnt/β-catenin signaling is essential for the initiation of dorsal-ventral patterning during vertebrate embryogenesis. Maternal β-catenin accumulates in dorsal marginal nuclei during cleavage stages, but its critical target genes essential for dorsalization are silent until mid-blastula transition (MBT). Here, we find that zebrafish net1, a guanine nucleotide exchange factor, is specifically expressed in dorsal marginal blastomeres after MBT, and acts as a zygotic factor to promote the specification of dorsal cell fates...
December 2, 2016: Cell Research
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