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https://www.readbyqxmd.com/read/28434102/outcomes-following-surgical-management-of-cauda-equina-syndrome-does-race-matter
#1
Amit Jain, Emmanuel Menga, Addisu Mesfin
Cauda equina syndrome (CES) is a surgical emergency requiring urgent spinal decompression. Our objective is to analyze the association between race and in-hospital outcomes (complications, mortality, length of stay, and discharge disposition) in patients with CES. This is a retrospective cohort study of CES patients identified via the Nationwide Inpatient Sample (NIS) from 2000 to 2010 in inpatient hospitalizations in the USA. The patient sample includes 46,017 patients ≥18 undergoing spine surgery for CES...
April 21, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28430972/identifying-subpopulations-vulnerable-to-the-thyroid-blocking-effects-of-perchlorate-and-thiocyanate
#2
Jenica McMullen, Akhgar Ghassabian, Brenda Kohn, Leonardo Trasande
Context: Common environmental contaminants can disrupt normal thyroid function, which plays essential but varying roles at different ages. Objective: To evaluate the relationship of perchlorate, thiocyanate, and nitrate, three sodium-iodide symporter (NIS) inhibitors, and thyroid function in different age-sex-stratified populations. Design, Setting, Participants, and Intervention: This was a cross-sectional analysis of data from the 2009-2012 National Health and Nutrition Examination Surveys (NHANES) evaluating the exposure to perchlorate, thiocyanate, and nitrate in 3,151 participants aged 12-80...
April 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28429667/sex-based-disparities-in-venous-thromboembolism-outcomes-a-national-inpatient-sample-nis-based-analysis
#3
Ariela L Marshall, Adam C Bartley, Aneel A Ashrani, Rajiv K Pruthi, Urshila Durani, Wilson I Gonsalves, Prashant Kapoor, Shahrukh K Hashmi, Mustaqeem A Siddiqui, Ronald S Go
Venous thromboembolism (VTE) contributes to significant morbidity, mortality, and socioeconomic burden. There is a paucity of literature regarding sex-based sociodemographic differences in VTE presentation and short-term outcomes. We aimed to compare clinical outcomes between men and women hospitalized for VTE management. We performed a retrospective analysis using data from the National Inpatient Sample (NIS) database from 2012 to 2013. Inclusion criteria were age 18 years and older and a primary discharge diagnosis of VTE...
April 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28429658/sex-differences-in-utilization-and-outcomes-of-catheter-directed-thrombolysis-in-patients-with-proximal-lower-extremity-deep-venous-thrombosis-insights-from-the-nationwide-inpatient-sample
#4
Vladimir Lakhter, Chad J Zack, Yevgeniy Brailovsky, Saurav Chatterjee, Vikas Aggarwal, Koneti A Rao, Deborah Crabbe, Huaqing Zhao, Eric Choi, Raghu Kolluri, Riyaz Bashir
Catheter-directed thrombolysis (CDT) is being increasingly used for the treatment of proximal lower extremity (LE) deep venous thrombosis (DVT). However, sex differences in utilization and safety outcomes of CDT in these patients are unknown. The Nationwide Inpatient Sample (NIS) database was used to identify all patients with a principal discharge diagnosis of proximal LE or caval DVT who underwent CDT between January 2005 and December 2011 in the United States. We evaluated the comparative safety outcomes of CDT among a propensity-matched group of 1731 men versus 1731 women...
April 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28424464/-18-f-tetrafluoroborate-pet-ct-enables-sensitive-tumor-and-metastasis-in-vivo-imaging-in-a-sodium-iodide-symporter-expressing-tumor-model
#5
S Diocou, A Volpe, M Jauregui-Osoro, M Boudjemeline, K Chuamsaamarkkee, F Man, P J Blower, T Ng, G E D Mullen, G O Fruhwirth
Cancer cell metastasis is responsible for most cancer deaths. Non-invasive in vivo cancer cell tracking in spontaneously metastasizing tumor models still poses a challenge requiring highest sensitivity and excellent contrast. The goal of this study was to evaluate if the recently introduced PET radiotracer [(18)F]tetrafluoroborate ([(18)F]BF4(-)) is useful for sensitive and specific metastasis detection in an orthotopic xenograft breast cancer model expressing the human sodium iodide symporter (NIS) as a reporter...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423213/systemic-tumor-targeted-sodium-iodide-symporter-nis-gene-therapy-of-hepatocellular-carcinoma-mediated-by-b6-peptide-polyplexes
#6
Sarah Urnauer, Kathrin Klutz, Geoffrey K Grünwald, Stephan Morys, Nathalie Schwenk, Christian Zach, Franz-Josef Gildehaus, Wolfgang Roedl, Manfred Ogris, Ernst Wagner, Christine Spitzweg
BACKGROUND: Non-viral polymer-based gene transfer represents an adaptable system for tumor-targeted gene therapy, as various design strategies of shuttle systems together with the mechanistic concept of active tumor targeting lead to improved gene delivery vectors resulting in higher tumor specificity, efficacy and safety. METHODS: Using the sodium iodide symporter (NIS) as theranostic gene, non-viral gene delivery vehicles based on linear polyethylenimine (LPEI), polyethylene glycol (PEG) and coupled with the synthetic peptide B6 (LPEI-PEG-B6), which specifically binds to tumor cells, were investigated in a hepatocellular carcinoma (HCC) xenograft model for tumor-selectivity and transduction efficiency...
April 19, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/28423029/evaluating-dispersal-potential-of-an-invasive-fish-by-the-use-of-aerobic-scope-and-osmoregulation-capacity
#7
Jane W Behrens, Mikael van Deurs, Emil A F Christensen
Non-indigenous species (NIS) can impact marine biodiversity and ecosystem structure and function. Once introduced into a new region, secondary dispersal is limited by the physiology of the organism in relation to the ambient environment and by complex interactions between a suite of ecological factors such as presence of predators, competitors, and parasites. Early prediction of dispersal potential and future 'area of impact' is challenging, but also a great asset in taking appropriate management actions. Aerobic scope (AS) in fish has been linked to various fitness-related parameters, and may be valuable in determining dispersal potential of aquatic invasive species in novel environments...
2017: PloS One
https://www.readbyqxmd.com/read/28422182/carbon-nanotube-metal-sulfide-composite-flexible-electrodes-for-high-performance-quantum-dot-sensitized-solar-cells-and-supercapacitors
#8
Chandu V V Muralee Gopi, Seenu Ravi, S Srinivasa Rao, Araveeti Eswar Reddy, Hee-Je Kim
Carbon nanotubes (CNT) and metal sulfides have attracted considerable attention owing to their outstanding properties and multiple application areas, such as electrochemical energy conversion and energy storage. Here we describes a cost-effective and facile solution approach to the preparation of metal sulfides (PbS, CuS, CoS, and NiS) grown directly on CNTs, such as CNT/PbS, CNT/CuS, CNT/CoS, and CNT/NiS flexible electrodes for quantum dot-sensitized solar cells (QDSSCs) and supercapacitors (SCs). X-ray photoelectron spectroscopy, X-ray diffraction, and transmission electron microscopy confirmed that the CNT network was covered with high-purity metal sulfide compounds...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28411603/determination-of-the-bond-dissociation-energies-of-fex-and-nix-x-c-s-se
#9
Daniel J Matthew, Erick Tieu, Michael D Morse
The bond dissociation energies of FeC, NiC, FeS, NiS, FeSe, and NiSe have been measured by the observation of a predissociation threshold in their resonant two-photon ionization spectra. Because the lowest separated atom limits generate a vast number of potential energy curves, it is thought that the molecules dissociate as soon as the ground separated atom limit is exceeded in energy. From the observed thresholds, dissociation energies have been measured as D0(FeC) = 3.961(19), D0(NiC) = 4.167(3), D0(FeS) = 3...
April 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28406887/hospitalizations-for-crohn-s-disease-united-states-2003-2013
#10
Christopher A Malarcher, Anne G Wheaton, Yong Liu, Sujay F Greenlund, Suraj J Greenlund, Hua Lu, Janet B Croft
In 2009, an estimated 565,000 Americans had Crohn's disease (1), an inflammatory bowel disorder that can affect any part of the gastrointestinal tract. Symptoms include persistent diarrhea, abdominal cramps and pain, constipation leading to bowel obstruction, and rectal bleeding.* Symptoms sometimes intensify in severity and require hospitalization and surgeries of the small intestine, colon, or rectum (2). Hospital discharge data from the National Inpatient Sample (NIS) of the Healthcare Cost and Utilization Project (HCUP) were used to estimate U...
April 14, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28402457/analysis-of-cost-variation-in-craniotomy-for-tumor-using-2-national-databases
#11
Corinna C Zygourakis, Caterina Y Liu, Seungwon Yoon, Christopher Moriates, Christy Boscardin, R Adams Dudley, Michael T Lawton, Philip Theodosopoulos, Mitchel S Berger, Ralph Gonzales
BACKGROUND: There is a significant increase and large variation in craniotomy costs. However, the causes of cost differences in craniotomies remain poorly understood. OBJECTIVE: To examine the patient and hospital factors that underlie the cost variation in tumor craniotomies using 2 national databases: the National Inpatient Sample (NIS) and Vizient, Inc. (Irving, Texas). METHODS: For 41 483 patients who underwent primary surgery for supratentorial brain tumors from 2001 to 2013 in the NIS, we created univariate and multivariate models to evaluate the effect of several patient factors and hospital factors on total hospital cost...
April 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28396984/iodinated-tg-in-thyroid-follicles-regulate-tsh-tshr-signaling-for-nis-expression
#12
Huibin Huang, Yaxiong Shi, Bo Liang, Huiyao Cai, Qingyan Cai
Our previous research has suggested that high degree of iodinated thyroglobulin (TG) may inhibit the expression and function of sodium iodide symporter (NIS), but the underlying mechanism remains unclear. In present study, we discuss a newly constructed follicle model in vitro, which was used to simulate the follicular structure of the thyroid and explore the regulatory roles of iodinated TG in the follicular lumen on NIS expression. The results showed that both NIS expression and PKA activity were increased in lowly iodinated TG group, while decreased NIS expression with increased PKC activity was found in highly iodinated TG group...
April 10, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28396608/zero-tolerance-biosecurity-protects-high-conservation-value-island-nature-reserve
#13
John K Scott, Simon J McKirdy, Johann van der Merwe, Roy Green, Andrew A Burbidge, Greg Pickles, Darryl C Hardie, Keith Morris, Peter G Kendrick, Melissa L Thomas, Kristin L Horton, Simon M O'Connor, Justin Downs, Richard Stoklosa, Russell Lagdon, Barbara Marks, Malcolm Nairn, Kerrie Mengersen
Barrow Island, north-west coast of Australia, is one of the world's significant conservation areas, harboring marsupials that have become extinct or threatened on mainland Australia as well as a rich diversity of plants and animals, some endemic. Access to construct a Liquefied Natural Gas (LNG) plant, Australia's largest infrastructure development, on the island was conditional on no non-indigenous species (NIS) becoming established. We developed a comprehensive biosecurity system to protect the island's biodiversity...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28393873/crystal-structure-of-zen4-in-the-apo-state-reveals-a-missing-conformation-of-kinesin
#14
Ruifang Guan, Lei Zhang, Qian Peter Su, Keith J Mickolajczyk, Geng-Yuan Chen, William O Hancock, Yujie Sun, Yongfang Zhao, Zhucheng Chen
Kinesins hydrolyse ATP to transport intracellular cargoes along microtubules. Kinesin neck linker (NL) functions as the central mechano-chemical coupling element by changing its conformation through the ATPase cycle. Here we report the crystal structure of kinesin-6 Zen4 in a nucleotide-free, apo state, with the NL initial segment (NIS) adopting a backward-docked conformation and the preceding α6 helix partially melted. Single-molecule fluorescence resonance energy transfer (smFRET) analyses indicate the NIS of kinesin-1 undergoes similar conformational changes under tension in the two-head bound (2HB) state, whereas it is largely disordered without tension...
April 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28393570/tafamidis-delays-disease-progression-in-patients-with-early-stage-transthyretin-familial-amyloid-polyneuropathy-additional-supportive-analyses-from-the-pivotal-trial
#15
Denis Keohane, Jeffrey Schwartz, Balarama Gundapaneni, Michelle Stewart, Leslie Amass
BACKGROUND: Tafamidis, a non-NSAID highly specific transthyretin stabilizer, delayed neurologic disease progression as measured by Neuropathy Impairment Score-Lower Limbs (NIS-LL) in an 18-month, double-blind, placebo-controlled randomized trial in 128 patients with early-stage transthyretin V30M familial amyloid polyneuropathy (ATTRV30M-FAP). The current post hoc analyses aimed to further evaluate the effects of tafamidis in delaying ATTRV30M-FAP progression in this trial. METHODS: Pre-specified, repeated-measures analysis of change from baseline in NIS-LL in this trial (ClinicalTrials...
April 10, 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28393121/synthesis-of-nickel-and-cobalt-sulfide-nanoparticles-using-a-low-cost-sonochemical-method
#16
Matjaž Kristl, Brina Dojer, Sašo Gyergyek, Janja Kristl
Nickel and cobalt sulfides are promising materials in different cutting-edge research areas like solar cells, supercapacitors, catalysts, and electrode materials. Nickel and cobalt sulfides with various stoichiometries have been synthesized sonochemically from Ni(CH3COO)2 ∙ 4H2O, Co(CH3COO)2 ∙ 2H2O and different sulfur precursors using a direct immersion ultrasonic probe. The products were characterized by X-ray powder diffraction, transmission electron microscopy (TEM) including EDX analysis, IR and UV-Vis spectroscopy and elemental analysis...
March 2017: Heliyon
https://www.readbyqxmd.com/read/28386277/thyroid-related-protein-expression-in-the-human-thymus
#17
Mi Jeong Kim, So Won Oh, Hyewon Youn, Juri Na, Keon Wook Kang, Do Joon Park, Young Joo Park, Ja June Jang, Kyu Eun Lee, Kyeong Cheon Jung, June-Key Chung
Radioiodine whole body scan (WBS), related to sodium iodide symporter (NIS) function, is widely used to detect recurrence/metastasis in postoperative patients with thyroid cancer. However, the normal thymic uptake of radioiodine has occasionally been observed in young patients. We evaluated the expression of thyroid-related genes and proteins in the human thymus. Thymic tissues were obtained from 22 patients with thyroid cancer patients of all ages. The expression of NIS, thyroid-stimulating hormone receptor (TSHR), thyroperoxidase (TPO), and thyroglobulin (Tg) was investigated using immunohistochemistry and quantitative RT-PCR...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28385107/association-of-household-income-level-and-in-hospital-mortality-in-patients-with-sepsis-a-nationwide-retrospective-cohort-analysis
#18
Barret Rush, Katie Wiskar, Leo Anthony Celi, Keith R Walley, James A Russell, Robert C McDermid, John H Boyd
OBJECTIVE: Associations between low socioeconomic status (SES) and poor health outcomes have been demonstrated in a variety of conditions. However, the relationship in patients with sepsis is not well described. We investigated the association of lower household income with in-hospital mortality in patients with sepsis across the United States. METHODS: Retrospective nationwide cohort analysis utilizing the Nationwide Inpatient Sample (NIS) from 2011. Patients aged 18 years or older with sepsis were included...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28383289/effect-of-the-amount-of-nickel-sulphide-molybdenum-disulphide-and-carbon-nanosupport-towards-tafel-slope-and-overpotential-optimization
#19
Maria Sarno, Eleonora Ponticorvo
A Tafel slope of 40 mV/dec and a very small overpotential were measured for our NiSMoS2G nanocatalyst prepared by a scalable approach and consisting of: NiS nanoparticles covered by a stabilizing coating of MoS2 nanosheets on unsophisticated and easy to be obtained physical exfoliated graphite (PHG). A careful study proves that it is possible to improve the Tafel Slope and the overpotential through the optimization of the amounts of the different components. The conductive nanocarbons network, the highly active to charge accumulation NiS nanoparticles and the coupling with MoS2 nanosheets exposing a large number of edges, result in a very high hydrogen production rate of 1...
April 6, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28380420/imaging-and-targeted-therapy-of-pancreatic-ductal-adenocarcinoma-using-the-theranostic-sodium-iodide-symporter-nis-gene
#20
Kathrin A Schmohl, Aayush Gupta, Geoffrey K Grünwald, Marija Trajkovic-Arsic, Kathrin Klutz, Rickmer Braren, Markus Schwaiger, Peter J Nelson, Manfred Ogris, Ernst Wagner, Jens T Siveke, Christine Spitzweg
The theranostic sodium iodide symporter (NIS) gene allows detailed molecular imaging of transgene expression and application of therapeutic radionuclides. As a crucial step towards clinical application, we investigated tumor specificity and transfection efficiency of epidermal growth factor receptor (EGFR)-targeted polyplexes as systemic NIS gene delivery vehicles in an advanced genetically engineered mouse model of pancreatic ductal adenocarcinoma (PDAC) that closely reflects human disease. PDAC was induced in mice by pancreas-specific activation of constitutively active KrasG12D and deletion of Trp53...
March 23, 2017: Oncotarget
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