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https://www.readbyqxmd.com/read/28338536/dual-energy-computed-tomography-for-the-evaluation-of-enhancement-of-pulmonary-nodules%C3%A2-3-cm-in-size
#1
Michael J Reiter, Weston T Winkler, Kenton E Kagy, Ryan B Schwope, Christopher J Lisanti
PURPOSE: The aim of the study was to compare the accuracies of 4 different methods of assessing pulmonary nodule enhancement to distinguish benign from malignant solid pulmonary nodules using nondynamic contrast-enhanced dual-energy computed tomography. MATERIALS AND METHODS: Seventy-two patients (mean age, 62 y) underwent dual-energy chest computed tomography 3 minutes after intravenous contrast administration. Each of 118 pulmonary nodules (9±5.9 mm) were evaluated for enhancement by 4 methods: visual assessment, 3-dimensional automated postprocessing measurement tool, manually drawn region of interest with calculated iodine-related attenuation, and measurement of iodine concentration...
March 22, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28337980/light-sensing-via-hydrogen-peroxide-and-a-peroxiredoxin
#2
Kristofer Bodvard, Ken Peeters, Friederike Roger, Natalie Romanov, Aeid Igbaria, Niek Welkenhuysen, Gaël Palais, Wolfgang Reiter, Michel B Toledano, Mikael Käll, Mikael Molin
Yeast lacks dedicated photoreceptors; however, blue light still causes pronounced oscillations of the transcription factor Msn2 into and out of the nucleus. Here we show that this poorly understood phenomenon is initiated by a peroxisomal oxidase, which converts light into a hydrogen peroxide (H2O2) signal that is sensed by the peroxiredoxin Tsa1 and transduced to thioredoxin, to counteract PKA-dependent Msn2 phosphorylation. Upon H2O2, the nuclear retention of PKA catalytic subunits, which contributes to delayed Msn2 nuclear concentration, is antagonized in a Tsa1-dependent manner...
March 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28335428/an-updated-review-of-ciguatera-fish-poisoning-clinical-epidemiological-environmental-and-public-health-management
#3
REVIEW
Melissa A Friedman, Mercedes Fernandez, Lorraine C Backer, Robert W Dickey, Jeffrey Bernstein, Kathleen Schrank, Steven Kibler, Wendy Stephan, Matthew O Gribble, Paul Bienfang, Robert E Bowen, Stacey Degrasse, Harold A Flores Quintana, Christopher R Loeffler, Richard Weisman, Donna Blythe, Elisa Berdalet, Ram Ayyar, Danielle Clarkson-Townsend, Karen Swajian, Ronald Benner, Tom Brewer, Lora E Fleming
Ciguatera Fish Poisoning (CFP) is the most frequently reported seafood-toxin illness in the world. It causes substantial human health, social, and economic impacts. The illness produces a complex array of gastrointestinal, neurological and neuropsychological, and cardiovascular symptoms, which may last days, weeks, or months. This paper is a general review of CFP including the human health effects of exposure to ciguatoxins (CTXs), diagnosis, human pathophysiology of CFP, treatment, detection of CTXs in fish, epidemiology of the illness, global dimensions, prevention, future directions, and recommendations for clinicians and patients...
March 14, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28333893/magnetic-resonance-imaging-characteristics-of-a-baerveldt-glaucoma-implant
#4
Daniel M Anderson, Ryan B Schwope, Michael J Reiter, Abraham W Suhr
PURPOSE: Evaluate for normative postoperative magnetic resonance imaging (MRI) characteristics of a Baerveldt Glaucoma Implant (BGI). DESIGN: Prospective case series. PARTICIPANTS: Seven subjects with uncontrolled glaucoma requiring a primary superotemporal BGI. METHODS: Subjects prospectively underwent sequential MRI orbital scans without contrast at 0 to 2 weeks, 6 to 8 weeks, and 4 to 6 months after implantation of a BGI model 103-250...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28331043/world-health-organization-treatment-guidelines-for-drug-resistant-tuberculosis-2016-update
#5
Dennis Falzon, Holger J Schünemann, Elizabeth Harausz, Licé González-Angulo, Christian Lienhardt, Ernesto Jaramillo, Karin Weyer
Antimicrobial resistance is a major global concern. Tuberculosis (TB) strains resistant to rifampicin and other TB medicines challenge patient survival and public health. The World Health Organization (WHO) has published treatment guidelines for drug-resistant TB since 1997 and last updated them in 2016 based on reviews of aggregated and individual patient data from published and unpublished studies. An international expert panel formulated recommendations following the GRADE approach. The new WHO guidelines recommend a standardised 9-12 months shorter treatment regimen as first choice in patients with multidrug- or rifampicin-resistant TB (MDR/RR-TB) strains not resistant to fluoroquinolones or second-line injectable agents; resistance to these two classes of core second-line medicines is rapidly detectable with molecular diagnostics also approved by WHO in 2016...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28326983/morphologic-and-morphometric-description-of-the-temporomandibular-joint-in-the-domestic-dog-using-computed-tomography
#6
Lenin A Villamizar-Martinez, Cristian M Villegas, Marco A Gioso, Alexander M Reiter, Geni C Patricio, Ana C Pinto
The temporomandibular joint (TMJ) in the domestic dog is a synovial joint with 2 articular surfaces, the mandibular fossa of the squamous portion of the temporal bone and the articular head of the condylar process of the mandible. Although different diagnostic imaging techniques have been used to study the TMJ in dogs, morphologic and morphometric studies based on computed tomography (CT) are scarce. The purpose of the present study was to describe the morphologic and morphometric features of the TMJ in domestic dogs using CT...
June 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28326969/a-note-from-alexander-reiter-chair-of-the-nomenclature-committee
#7
Alexander M Reiter
No abstract text is available yet for this article.
June 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28322717/lengthening-and-deformity-correction-about-the-knee-using-a-magnetic-internal-lengthening-nail
#8
Austin T Fragomen, S Robert Rozbruch
INTRODUCTION: The introduction of the internal lengthening nail (ILN) has changed the treatment of complex malalignment and shortening about the knee. Acute correction of the deformity and gradual lengthening through this osteotomy site has greatly simplified postoperative recovery. This manuscript is a review of the techniques that are currently being used in surgery. METHODS: The article is broken into two sections: distal femur osteotomy and tibia osteotomy. Each is addressed separately since they have different personalities...
2017: SICOT-J
https://www.readbyqxmd.com/read/28322205/factors-influencing-the-long-term-dynamics-of-larval-sea-lice-density-at-east-and-west-coast-locations-in-scotland
#9
Anna J Harte, Alan S Bowman, Nabeil K G Salama, Campbell C Pert
Sea lice (Copepoda: Caligidae) are marine copepods that parasitize finfish, and in cases of high infestation can result in severe epithelial damage and mortality. In Scotland, 2 species of sea louse, Lepeophtheirus salmonis and Caligus elongatus, pose a significant economic burden to the marine Atlantic salmon aquaculture industry and potentially impact wild salmonids. The purpose of this study was to determine how the density of pelagic sea lice is affected by external variables, in order to improve our understanding of sea lice dynamics...
March 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28321204/a-comprehensive-view-of-the-%C3%AE-arrestinome
#10
Pascale Crépieux, Anne Poupon, Nathalie Langonné-Gallay, Eric Reiter, Javier Delgado, Martin H Schaefer, Thomas Bourquard, Luis Serrano, Christina Kiel
G protein-coupled receptors (GPCRs) are membrane receptors critically involved in sensing the environment and orchestrating physiological processes. As such, they transduce extracellular signals such as hormone, neurotransmitters, ions, and light into an integrated cell response. The intracellular trafficking, internalization, and signaling ability of ligand-activated GPCRs are controlled by arrestins, adaptor proteins that they interact with upon ligand binding. β-arrestins 1 and 2 in particular are now considered as hub proteins assembling multiprotein complexes to regulate receptor fate and transduce diversified cell responses...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28320767/comparing-outcomes-between-antibody-induction-therapies-in-kidney-transplantation
#11
Neel Koyawala, Jeffrey H Silber, Paul R Rosenbaum, Wei Wang, Alexander S Hill, Joseph G Reiter, Bijan A Niknam, Orit Even-Shoshan, Roy D Bloom, Deirdre Sawinski, Susanna Nazarian, Jennifer Trofe-Clark, Mary Ann Lim, Jesse D Schold, Peter P Reese
Kidney transplant recipients often receive antibody induction. Previous studies of induction therapy were often limited by short follow-up and/or absence of information about complications. After linking Organ Procurement and Transplantation Network data with Medicare claims, we compared outcomes between three induction therapies for kidney recipients. Using novel matching techniques developed on the basis of 15 clinical and demographic characteristics, we generated 1:1 pairs of alemtuzumab-rabbit antithymocyte globulin (rATG) (5330 pairs) and basiliximab-rATG (9378 pairs) recipients...
March 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28320202/identification-and-expression-of-equine-mer-derived-mirnas
#12
Jeong-An Gim, Heui-Soo Kim
MicroRNAs (miRNAs) are single-stranded, small RNAs (21-23 nucleotides) that function in gene silencing and translational inhibition via the RNA interference mechanism. Most miRNAs originate from host genomic regions, such as intergenic regions, introns, exons, and transposable elements (TEs). Here, we focused on the palindromic structure of medium reiteration frequencies (MERs), which are similar to precursor miRNAs. Five MER consensus sequences (MER5A1, MER53, MER81, MER91C, and MER117) were matched with paralogous transcripts predicted to be precursor miRNAs in the horse genome (equCab2) and located in either intergenic regions or introns...
March 21, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28319648/new-targeted-approaches-for-the-quantification-of-data-independent-acquisition-mass-spectrometry
#13
Roland Bruderer, Julia Sondermann, Chih-Chiang Tsou, Alonso Barrantes-Freer, Christine Stadelmann, Alexey I Nesvizhskii, Manuela Schmidt, Lukas Reiter, David Gomez-Varela
The use of data-independent acquisition (DIA) approaches for the reproducible and precise quantification of complex protein samples has increased in the last years. The protein information arising from DIA analysis is stored in digital protein maps (DIA-maps) that can be interrogated in a targeted way by using ad hoc or publically-available peptide spectral libraries generated on the same sample species as for the generation of the DIA maps. The restricted availability of certain difficult-to-obtain human tissues (i...
March 20, 2017: Proteomics
https://www.readbyqxmd.com/read/28318824/a-kinetic-approach-on-hexavalent-chromium-removal-with-metallic-iron
#14
M Gheju, I Balcu, A Enache, A Flueras
This paper examines the mechanism of Cr(VI) removal with Fe(0), and the possible effect of various experimental parameters, from a kinetic perspective. The experimental data was analyzed using five different kinetic models: three for chemical reactions and two for adsorption processes. It was found that the process fitted well to the zero-order kinetic model for all investigated systems, excepting experiments conducted at 6 °C and those with nano-Fe(0), when the process followed the Ho's pseudo second-order model...
March 16, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28315639/effect-of-home-cage-bedding-in-the-induction-chamber-on-serum-cortisol-and-corticosterone-levels-in-response-to-isoflurane-induced-anesthesia-in-c57bl-6j-mice
#15
Cara P Reiter, Amanda C Christy, Cara H Olsen, David E Bentzel
Mice are routinely anesthetized with isoflurane in an induction chamber. The AVMA Guidelines for the Euthanasia of Animals states that distress should be minimized during euthanasia but does not address this point in regard to induction of anesthesia. Here we evaluated the potential for familiar surroundings to reduce the adrenocortical response of mice during anesthesia induction with isoflurane. However, adding bedding from the animals' home cage to the induction chamber failed to significantly reduce serum cortisol or corticosterone levels in male and female C57BL/6J mice...
March 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28314287/imaging-and-pathology-correlations-for-different-risk-stratification-models-for-intermediate-risk-prostate-cancer
#16
Timothy Ellis-Caleo, John V Hegde, Sukhjeet Bath, Shane Mesko, Robert Reiter, Daniel Margolis, Mitchell Kamrava
BACKGROUND/AIM: We evaluated whether sub-stratifying intermediate-risk (IR) prostate cancer using the Memorial Sloan Kettering Cancer (MSKCC) or Prostate Cancer Risk Stratification (ProCaRS) model predicts for adverse imaging or pathologic features. PATIENTS AND METHODS: 56 consecutive IR patients who underwent multi-parametric MRI (mpMRI) and radical prostatectomy (RP) were studied. The different groups were tested for correlation with adverse findings. 2-sample T-tests assuming unequal variance were used...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28304298/exercise-training-and-functional-connectivity-changes-in-mild-cognitive-impairment-and-healthy-elders
#17
Theresa J Chirles, Katherine Reiter, Lauren R Weiss, Alfonso J Alfini, Kristy A Nielson, J Carson Smith
BACKGROUND: Effective interventions are needed to improve brain function in mild cognitive impairment (MCI), an early stage of Alzheimer's disease (AD). The posterior cingulate cortex (PCC)/precuneus is a hub of the default mode network (DMN) and is preferentially vulnerable to disruption of functional connectivity in MCI and AD. OBJECTIVE: We investigated whether 12 weeks of aerobic exercise could enhance functional connectivity of the PCC/precuneus in MCI and healthy elders...
March 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28301702/space-for-the-prisoner-s-point-of-view
#18
Laura Haupt
The lead article in this issue discusses a potentially free metaphorical space-that of decision-making-within the confines, tangible and intangible, of life in jail or prison. By interviewing prisoner-participants from six clinical studies, Paul Christopher and colleagues sought to find out how these men and women would answer open-ended questions about their decision to enroll in the research. What the interviewers heard was that none saw themselves as having been inappropriately pressured to do so. In fact, a significant percentage of the prisoners described being dissuaded from participating in the studies...
March 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28301699/coercion-and-access-to-health-care
#19
Keramet Reiter
In this issue of the Hastings Center Report, Paul Christopher and colleagues describe a study of why prisoners choose to enroll in clinical research. The article represents an important methodological and policy contribution to the literature on prisoner participation in research and medical experimentation. Given the methodological and ethical debates to which this research seeks to make an empirical contribution, the careful manner in which the study was conducted and the transparency with which the authors describe the research is especially noteworthy...
March 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28298418/disrupting-the-cd47-sirp%C3%AE-anti-phagocytic-axis-by-a-humanized-anti-cd47-antibody-is-an-efficacious-treatment-for-malignant-pediatric-brain-tumors
#20
Sharareh Gholamin, Siddhartha S Mitra, Abdullah H Feroze, Jie Liu, Suzana A Kahn, Michael Zhang, Rogelio Esparza, Chase Richard, Vijay Ramaswamy, Marc Remke, Anne K Volkmer, Stephen Willingham, Anitha Ponnuswami, Aaron McCarty, Patricia Lovelace, Theresa A Storm, Simone Schubert, Gregor Hutter, Cyndhavi Narayanan, Pauline Chu, Eric H Raabe, Griffith Harsh, Michael D Taylor, Michelle Monje, Yoon-Jae Cho, Ravi Majeti, Jens P Volkmer, Paul G Fisher, Gerald Grant, Gary K Steinberg, Hannes Vogel, Michael Edwards, Irving L Weissman, Samuel H Cheshier
Morbidity and mortality associated with pediatric malignant primary brain tumors remain high in the absence of effective therapies. Macrophage-mediated phagocytosis of tumor cells via blockade of the anti-phagocytic CD47-SIRPα interaction using anti-CD47 antibodies has shown promise in preclinical xenografts of various human malignancies. We demonstrate the effect of a humanized anti-CD47 antibody, Hu5F9-G4, on five aggressive and etiologically distinct pediatric brain tumors: group 3 medulloblastoma (primary and metastatic), atypical teratoid rhabdoid tumor, primitive neuroectodermal tumor, pediatric glioblastoma, and diffuse intrinsic pontine glioma...
March 15, 2017: Science Translational Medicine
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