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https://www.readbyqxmd.com/read/29332233/pilot-study-of-serial-flt-and-fdg-pet-ct-imaging-to-monitor-response-to-neoadjuvant-chemoradiotherapy-of-esophageal-adenocarcinoma-correlation-with-histopathologic-response
#1
Victor H Gerbaudo, Joseph H Killoran, Chun K Kim, Jason L Hornick, Jonathan A Nowak, Peter C Enzinger, Harvey J Mamon
OBJECTIVE: The aim of this prospective pilot study was to investigate the potential of serial FLT-PET/CT compared to FDG-PET/CT to provide an early indication of esophageal cancer response to concurrent neoadjuvant chemoradiation therapy. METHODS: Five patients with biopsy-proven esophageal adenocarcinomas underwent neoadjuvant chemoradiation (Tx) prior to minimally invasive esophagectomy. The presence of residual tumor was classified histologically using the Mandard et al...
January 13, 2018: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29332196/bioelectronic-modulation-of-carotid-sinus-nerve-activity-in-the-rat-a-potential-therapeutic-approach-for-type-2-diabetes
#2
Joana F Sacramento, Daniel J Chew, Bernardete F Melo, Matteo Donegá, Wesley Dopson, Maria P Guarino, Alison Robinson, Jesus Prieto-Lloret, Sonal Patel, Bradley J Holinski, Nishan Ramnarain, Victor Pikov, Kristoffer Famm, Silvia V Conde
AIMS/HYPOTHESIS: A new class of treatments termed bioelectronic medicines are now emerging that aim to target individual nerve fibres or specific brain circuits in pathological conditions to repair lost function and reinstate a healthy balance. Carotid sinus nerve (CSN) denervation has been shown to improve glucose homeostasis in insulin-resistant and glucose-intolerant rats; however, these positive effects from surgery appear to diminish over time and are heavily caveated by the severe adverse effects associated with permanent loss of chemosensory function...
January 14, 2018: Diabetologia
https://www.readbyqxmd.com/read/29331877/cerebral-changes-and-disrupted-gray-matter-cortical-networks-in-asymptomatic-older-adults-at-risk-for-alzheimer-s-disease
#3
Jose L Cantero, Mercedes Atienza, Pascual Sanchez-Juan, Eloy Rodriguez-Rodriguez, Jose Luis Vazquez-Higuera, Ana Pozueta, Andrea Gonzalez-Suarez, Eduard Vilaplana, Jordi Pegueroles, Victor Montal, Rafael Blesa, Daniel Alcolea, Alberto Lleo, Juan Fortea
The diagnostic value of cerebrospinal fluid (CSF) biomarkers is well established in Alzheimer's disease, but our current knowledge about how abnormal CSF levels affect cerebral integrity, at local and network levels, is incomplete in asymptomatic older adults. Here, we have collected CSF samples and performed structural magnetic resonance imaging scans in cognitively normal elderly as part of a cross-sectional multicenter study (SIGNAL project). To identify group differences in cortical thickness, white matter volume, and properties of structural networks, participants were split into controls (N = 20), positive amyloid-β (Aβ1-42+) (N = 19), and positive phosphorylated tau (N = 18)...
December 20, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29331080/design-synthesis-and-evaluation-of-novel-oxazaborine-inhibitors-of-the-nlrp3-inflammasome
#4
Alex George Baldwin, Victor S Tapia, Tessa Swanton, Claire S White, James A Beswick, David Brough, Sally Freeman
The NLRP3 inflammasome is an important regulator of the sterile inflammatory response and its activation by host-derived sterile molecules leads to the intracellular activation of caspase-1, processing of the pro-inflammatory cytokines interleukin-1β (IL 1β)/IL-18, and pyroptotic cell death. Inappropriate activation of NLRP3 drives a chronic inflammatory response and is implicated in several non-communicable diseases, including gout, atherosclerosis, type II diabetes and Alzheimer's disease. In this study, we report the design, synthesis and biological evaluation of novel boron compounds (NBCs) as NLRP3 inflammasome inhibitors...
January 13, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29331022/open-letter-to-journal-editors-on-international-consensus-radiochemistry-nomenclature-guidelines
#5
Heinz H Coenen, Antony D Gee, Michael Adam, Gunnar Antoni, Cathy S Cutler, Yasuhisa Fujibayashi, Jae Min Jeong, Robert H Mach, Thomas L Mindt, Victor W Pike, Albert D Windhorst
No abstract text is available yet for this article.
January 13, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29330626/low-frequency-rtms-in-the-superior-parietal-cortex-affects-the-working-memory-in-horizontal-axis-during-the-spatial-task-performance
#6
Jéssica Alves Ribeiro, Francisco Victor Costa Marinho, Kaline Rocha, Francisco Magalhães, Abrahão Fontes Baptista, Bruna Velasques, Pedro Ribeiro, Mauricio Cagy, Victor Hugo Bastos, Daya Gupta, Silmar Teixeira
Spatial working memory has been extensively investigated with different tasks, treatments, and analysis tools. Several studies suggest that low frequency of the repetitive transcranial magnetic stimulation (rTMS) applied to the parietal cortex may influence spatial working memory (SWM). However, it is not yet known if after low-frequency rTMS applied to the superior parietal cortex, according to Pz electroencephalography (EEG) electrode, would change the orientation interpretation about the vertical and horizontal axes coordinates in an SWM task...
January 12, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29330375/intra-specific-latitudinal-clines-in-leaf-carbon-nitrogen-and-phosphorus-and-their-underlying-abiotic-correlates-in-ruellia-nudiflora
#7
Luis Abdala-Roberts, Felisa Covelo, Víctor Parra-Tabla, Jorge C Berny Mier Y Terán, Kailen A Mooney, Xoaquín Moreira
While plant intra-specific variation in the stoichiometry of nutrients and carbon is well documented, clines for such traits have been less studied, despite their potential to reveal the mechanisms underlying such variation. Here we analyze latitudinal variation in the concentration of leaf nitrogen (N), phosphorus (P), carbon (C) and their ratios across 30 populations of the perennial herb Ruellia nudiflora. In addition, we further determined whether climatic and soil variables underlie any such latitudinal clines in leaf traits...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330259/limited-accuracy-of-administrative-data-for-the-identification-and-classification-of-adult-congenital-heart-disease
#8
Abigail Khan, Katrina Ramsey, Cody Ballard, Emily Armstrong, Luke J Burchill, Victor Menashe, George Pantely, Craig S Broberg
BACKGROUND: Administrative data sets utilize billing codes for research and quality assessment. Previous data suggest that such codes can accurately identify adults with congenital heart disease (CHD) in the cardiology clinic, but their use has yet to be validated in a larger population. METHODS AND RESULTS: All administrative codes from an entire health system were queried for a single year. Adults with a CHD diagnosis code (International Classification of Diseases, Ninth Revision, (ICD-9) codes 745-747) defined the cohort...
January 12, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29330041/acute-epileptiform-activity-induced-by-gabazine-involves-proteasomal-rather-than-lysosomal-degradation-of-kca2-2-channels
#9
Steffen Müller, Xiati Guli, Judith Hey, Anne Einsle, Daniela Pfanz, Victor Sudmann, Timo Kirschstein, Rüdiger Köhling
Voltage-independent, Ca2+-activated K+ channels (KCa2.2, previously named SK2) are typically activated during a train of action potentials, and hence, are powerful regulators of cellular excitability by generating an afterhyperpolarizing potential (AHP) following prolonged excitation. In the acute in vitro epilepsy model induced in hippocampal brain slice preparations by exposure to the GABAA receptor blocker gabazine (GZ), the AHP was previously shown to be significantly decreased. Here, we asked the question whether KCa2...
January 9, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29329932/development-of-the-human-fetal-kidney-from-mid-to-late-gestation-in-male-and-female-infants
#10
Danica Ryan, Megan R Sutherland, Tracey J Flores, Alison L Kent, Jane E Dahlstrom, Victor G Puelles, John F Bertram, Andrew P McMahon, Melissa H Little, Lynette Moore, Mary Jane Black
BACKGROUND: During normal human kidney development, nephrogenesis (the formation of nephrons) is complete by term birth, with the majority of nephrons formed late in gestation. The aim of this study was to morphologically examine nephrogenesis in fetal human kidneys from 20 to 41weeks of gestation. METHODS: Kidney samples were obtained at autopsy from 71 infants that died acutely in utero or within 24h after birth. Using image analysis, nephrogenic zone width, the number of glomerular generations, renal corpuscle cross-sectional area and the cellular composition of glomeruli were examined...
December 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29329916/impact-of-the-international-nosocomial-infection-control-consortium-s-multidimensional-approach-on-rates-of-ventilator-associated-pneumonia-in-14-intensive-care-units-in-11-hospitals-of-5-cities-within-argentina
#11
Victor Daniel Rosenthal, Javier Desse, Diego Marcelo Maurizi, Gustavo Jorge Chaparro, Pablo Wenceslao Orellano, Viviana Chediack, Rafael Cabrera, Daniel Golschmid, Cristina Graciela Silva, Julio Cesar Vimercati, Juan Pablo Stagnaro, Ivanna Perez, María Laura Spadaro, Adriana Miriam Montanini, Dina Pedersen, Teresa Laura Paniccia, Ana María Ríos Aguilera, Raul Cermesoni, Juan Ignacio Mele, Ernesto Alda, Analía Edith Paldoro, Agustín Román Ortta, Bettina Cooke, María Cecilia García, Mora Nair Obed, Cecilia Verónica Domínguez, Pablo Alejandro Saúl, María Cecilia Rodríguez Del Valle, Alberto Claudio Bianchi, Gustavo Alvarez, Ricardo Pérez, Carolina Oyola
BACKGROUND: To analyze the impact of the International Nosocomial Infection Control Consortium (INICC) multidimensional approach (IMA) on ventilator-associated pneumonia (VAP) rates in 11 hospitals within 5 cities of Argentina from January 2014-April 2017. METHODS: A multicenter, prospective, before-after surveillance study was conducted through the use of International Nosocomial Infection Control Consortium Surveillance Online System. During baseline, we performed outcome surveillance of VAP applying the definitions of the Centers for Disease Control andPrevention's National Healthcare Safety Network...
January 9, 2018: American Journal of Infection Control
https://www.readbyqxmd.com/read/29329808/structural-and-energetic-basis-for-the-molecular-recognition-of-dual-synthetic-vs-natural-inhibitors-of-egfr-her2
#12
Bello Martiniano, Saldaña-Rivero Lucia, Correa-Basurto José, García Benjamín, Sánchez-Espinosa Víctor Armando
Activation of EGFR starts by ligand binding at the extracellular domain which results in homo and heterodimerization, leading to phosphorylation, activation of downstream signaling pathways which upregulate expression of genes, proliferation and angiogenesis. Abnormalities in the expression of EGFR play a critical role in the development of different types of cancer. HER2 is the preferred heterodimerization partner for EGFR; this biological characteristic together with the high percentage of structural homology has been exploited in the design of dual synthetic inhibitors against EGFR/HER2...
January 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29329626/applicability-of-flotac%C3%A2-technique-in-recovering-equine-strongyle-larvae-in-the-pasture-a-comparison-study
#13
Ingrid Carla do Nascimento Ramos, Rafael Antonio do Nascimento Ramos, Victor Fernando de Santana Lima, Alessio Giannelli, Irma Yaneth Torres López, Leucio Câmara Alves
The FLOTAC® technique represents a highly sensitive method for the isolation of oocysts, eggs, and larvae of parasites in faeces. This assay could be used for detecting free-living stages of nematodes in the pasture but no attempt has been assessed so far. Therefore, the performance of FLOTAC® technique for isolating infective larvae of nematodes in the environment was investigated and compared with the spontaneous sedimentation (SST) and centrifugal sedimentation (CST) techniques. The study was conducted in a horse farm located in northeastern Brazil, where the occurrence of strongyle larvae had been previously reported...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29329216/an-introduction-to-integrative-genomics-and-systems-medicine-in-cancer
#14
EDITORIAL
Xiaolong Cheng, Victor X Jin
In this Special Issue (SI), with a theme of "Integrative Genomics and Systems Medicine in Cancer", we have collected a total of 12 research and review articles from researchers in the field of genomics and systems medicine[...].
January 12, 2018: Genes
https://www.readbyqxmd.com/read/29329095/investigation-of-silver-ag-deposition-in-tissues-from-stranded-cetaceans-by-autometallography-amg
#15
Wen-Ta Li, Hui-Wen Chang, Meng-Hsien Chen, Hue-Ying Chiou, Bang-Yeh Liou, Victor Fei Pang, Wei-Cheng Yang, Chian-Ren Jeng
Silver, such as silver nanoparticles (AgNPs), has been widely used in commercial products and may be released into the environment. The interaction between Ag deposition and biological systems is raising serious concerns because of one health consideration. Cetaceans, as the top predators of the oceans, may be exposed to Ag/Ag compounds and suffer negative health impacts from the deposition of these compounds in their bodies. In the present study, we utilized autometallography (AMG) to localize the Ag in the liver and kidney tissues of cetaceans and developed a model called the cetacean histological Ag assay (CHAA) to estimate the Ag concentrations in the liver and kidney tissues of cetaceans...
January 9, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29329059/amyloid-burden-and-incident-depressive-symptoms-in-preclinical-alzheimer-s-disease
#16
Stephanie Perin, Karra D Harrington, Yen Ying Lim, Kathryn Ellis, David Ames, Robert H Pietrzak, Adrian Schembri, Stephanie Rainey-Smith, Olivier Salvado, Simon M Laws, Ralph N Martins, Victor L Villemagne, Christopher C Rowe, Colin L Masters, Paul Maruff
BACKGROUND: Relationships between depression and Alzheimer's disease (AD) may become clearer if studied in preclinical AD where dementia is not present. METHOD: The aim of this study was to evaluate prospectively, relationships between brain amyloid-β (Aβ), depressive symptoms and screen positive depression in cognitively normal (CN) older adults. Depressive symptoms were measured with the Geriatric Depression Inventory (GDS-15) in CN adults from the Australian Imaging Biomarkers and Lifestyle (AIBL) study without depression at baseline and classified as having abnormally high (Aβ+; n = 136) or low (Aβ-; n = 449) Aβ according to positron emission tomography at 18-month intervals over 72 months...
January 3, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29328650/an-evidence-for-indirect-action-of-ionizing-radiation-in-18-crown-6-complexes-with-halogenous-salts-of-strontium-simulation-of-radiation-induced-transformations-in-ionic-liquid-crown-ether-compositions
#17
Olga A Zakurdaeva, Sergey V Nesterov, Natalya A Sokolova, Pavel V Dorovatovskii, Yan V Zubavichus, Victor N Khrustalev, Andrey F Asachenko, Gleb A Chesnokov, Mikhail Sergeevich Nechaev, Vladimir I Feldman
Ionic Liquid/Crown Ether compositions are an attractive alternative to traditional extractants in the processes for spent nuclear fuel and liquid radioactive wastes reprocessing. These compositions are exposed to ionizing radiation, and their radiation stability, especially in the presence of metal salts, is a crucial issue. In the present study, the macrocyclic 18C6·Sr(BF4)2 and 18C6·Sr(PF6)2 complexes simulating the components of metal loaded Ionic Liquid/Crown Ether extractants were synthesized and their structures were characterized by FTIR spectroscopy and single-crystal X-ray diffraction analysis...
January 12, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29328527/pruritic-papulovesicular-dermatosis-with-reticular-hyperpigmentation
#18
Victor Olsavszky, Cyrill Géraud
No abstract text is available yet for this article.
January 12, 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29328285/astigmatic-laser-beams-with-a-large-orbital-angular-momentum
#19
Victor V Kotlyar, Alexey A Kovalev, Alexey P Porfirev
We show that an elliptic Gaussian beam, focused by a cylindrical lens, can be represented as a linear combination of a countable number of only even angular harmonics with both positive and negative topological charge. For the orbital angular momentum (OAM) of the astigmatic Gaussian beam, an exact expression is obtained in a form of a converging series of the Legendre functions of the second kind. It is shown that at some conditions only the terms with the positive or negative topological charge are remained in this series...
January 8, 2018: Optics Express
https://www.readbyqxmd.com/read/29328107/modulation-transfer-function-of-liquid-crystal-microlenses-and-microprisms-using-double-dielectric-layer
#20
Oleksandr Sova, Victor Reshetnyak, Tigran Galstian
We investigate electrically tunable liquid crystal (LC) microlenses and microprisms based on double dielectric optically hidden (DDOH) layers. Comparative theoretical study of the spatial resolution limits in the creation of a spatially modulated electric field by the DDOH layer is conducted. Both the depth of the resulting optical phase modulation and its deviation from the desired wavefront are obtained for sine and sawtooth geometries of the DDOH layer's structure. A comparison is provided with the standard LC reorientation approach using patterned electrodes...
January 1, 2018: Applied Optics
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