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https://www.readbyqxmd.com/read/28622175/predictors-prognosis-and-management-of-new-clinically-important-atrial-fibrillation-after-noncardiac-surgery-a-prospective-cohort-study
#1
Pablo Alonso-Coello, Deborah Cook, Shou Chun Xu, Alben Sigamani, Otavio Berwanger, Soori Sivakumaran, Homer Yang, Denis Xavier, Luz Ximena Martinez, Pedro Ibarra, Purnima Rao-Melacini, Janice Pogue, Kelly Zarnke, Pilar Paniagua, Jack Ostrander, Salim Yusuf, P J Devereaux
BACKGROUND: Despite the frequency of new clinically important atrial fibrillation (AF) after noncardiac surgery and its increased association with the risk of stroke at 30 days, there are limited data informing their prediction, association with outcomes, and management. METHODS: We used the data from the PeriOperative ISchemic Evaluation trial to determine, in patients undergoing noncardiac surgery, the association of new clinically important AF with 30-day outcomes, and to assess management of these patients...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28545724/the-role-of-ca-2-in-cell-death-caused-by-oxidative-glutamate-toxicity-and-ferroptosis
#2
REVIEW
Pamela Maher, Klaus van Leyen, Partha Narayan Dey, Birgit Honrath, Amalia Dolga, Axel Methner
Ca(2+) ions play a fundamental role in cell death mediated by oxidative glutamate toxicity or oxytosis, a form of programmed cell death similar and possibly identical to other forms of cell death like ferroptosis. Ca(2+) influx from the extracellular space occurs late in a cascade characterized by depletion of the intracellular antioxidant glutathione, increases in cytosolic reactive oxygen species and mitochondrial dysfunction. Here, we aim to compare oxidative glutamate toxicity with ferroptosis, address the signaling pathways that culminate in Ca(2+) influx and cell death and discuss the proteins that mediate this...
May 12, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28536290/peptidoglycan-association-of-murein-lipoprotein-is-required-for-kpsd-dependent-group-2-capsular-polysaccharide-expression-and-serum-resistance-in-a-uropathogenic-escherichia-coli-isolate
#3
Jingyu Diao, Catrien Bouwman, Donghong Yan, Jing Kang, Anand K Katakam, Peter Liu, Homer Pantua, Alexander R Abbas, Nicholas N Nickerson, Cary Austin, Mike Reichelt, Wendy Sandoval, Min Xu, Chris Whitfield, Sharookh B Kapadia
Murein lipoprotein (Lpp) and peptidoglycan-associated lipoprotein (Pal) are major outer membrane lipoproteins in Escherichia coli Their roles in cell-envelope integrity have been documented in E. coli laboratory strains, and while Lpp has been linked to serum resistance in vitro, the underlying mechanism has not been established. Here, lpp and pal mutants of uropathogenic E. coli strain CFT073 showed reduced survival in a mouse bacteremia model, but only the lpp mutant was sensitive to serum killing in vitro The peptidoglycan-bound Lpp form was specifically required for preventing complement-mediated bacterial lysis in vitro and complement-mediated clearance in vivo Compared to the wild-type strain, the lpp mutant had impaired K2 capsular polysaccharide production and was unable to respond to exposure to serum by elevating capsular polysaccharide amounts...
May 23, 2017: MBio
https://www.readbyqxmd.com/read/28530113/refining-current-scientific-priorities-identifying-new-scientific-gaps-in-hiv-related-heart-lung-blood-and-sleep-hlbs-research
#4
Homer L TwiggIII, Ronald Crystal, Judith Currier, Paul M Ridker, Nancy Berliner, Hans-Peter Kiem, George Rutherford, Shimian Zou, Simone Glynn, Renee Wong, Emmanuel Peprah, Michael Engelgau, Tony L Creazzo, Sandra Colombini-Hatch, Elisabet Caler
The National Heart, Lung and Blood Institute (NHLBI) AIDS Program's goal is to provide direction and support for research and training programs in areas of HIV-related heart, lung, blood and sleep (HLBS) diseases. To better define NHLBI current HIV-related scientific priorities and with the goal of identifying new scientific priorities and gaps in HIV-related HLBS research, a wide group of investigators gathered for a scientific NHLBI HIV Working Group on December 14-15, 2015, in Bethesda, MD. The core objectives of the Working Group included discussions on: 1) HIV-related HLBS comorbidities in the antiretroviral era; 2) HIV cure; 3) HIV prevention; and 4) mechanisms to implement new scientific discoveries in an efficient and timely manner so as to have the most impact on people living with HIV (PLWH)...
May 20, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28512860/intrinsic-cellular-and-molecular-properties-of-in-vivo-hippocampal-synaptic-plasticity-are-altered-in-the-absence-of-key-synaptic-matrix-molecules
#5
Stephan Jansen, Christine Gottschling, Andreas Faissner, Denise Manahan-Vaughan
Hippocampal synaptic plasticity comprises a key cellular mechanism for information storage. In the hippocampus, both long-term potentiation (LTP) and long-term depression (LTD) are triggered by synaptic Ca(2+) -elevations that are typically mediated by the opening of voltage-gated cation channels, such as N-methyl-D-aspartate receptors (NMDAR), in the postsynaptic density. The integrity of the post-synaptic density is ensured by the extracellular matrix (ECM). Here, we explored whether synaptic plasticity is affected in adult behaving mice that lack the ECM proteins brevican, neurocan, tenascin-C and tenascin-R (TG)...
May 17, 2017: Hippocampus
https://www.readbyqxmd.com/read/28495199/an-automated-multiplex-tandem-pcr-platform-for-the-diagnosis-of-gastrointestinal-nematode-infections-in-cattle-an-australian-european-validation-study
#6
Florian Roeber, Ebrahim Bani Hassan, Philip Skuce, Alison Morrison, Edwin Claerebout, Stijn Casaert, David R Homer, Simon Firestone, Mark Stevenson, Lee Smith, John Larsen
Detecting the genera and species of gastrointestinal (GI) nematode infections in faecal samples obtained from cattle requires the incubation of faeces ('larval culture') followed by identification of the third-stage larvae that are harvested after 10-14days. Substantial research in the development of PCR-based methods for the rapid and specific identification GI nematodes has been conducted for small ruminants, whilst only few such assays have been developed for cattle. In the present paper we describe the development of an automated, robotic PCR platform for the detection and genus and/or species-specific identification of GI nematodes from bovine faecal samples...
May 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28429277/primary-ewing-sarcoma-primitive-neuroectodermal-tumor-of-the-kidney-a-clinicopathologic-study-of-23-cases
#7
Paari Murugan, Priya Rao, Pheroze Tamboli, Bogdan Czerniak, Charles C Guo
Primary Ewing sarcoma / primitive neuroectodermal tumor (ES) of the kidney is a rare neoplasm with limited clinicopathologic data. We report 23 such cases with no history of ES elsewhere in the body. The patients included 13 male and 10 female, aged 8-70 years (mean, 31 years). The average tumor size was 11.7 cm (range, 5-20 cm). Microscopic analysis showed predominantly lobular growth (n = 14), with focal papillary (n = 3), alveolar (n = 1), and hemangiopericytoma-like (n = 1) patterns. Several tumors (n = 11) exhibited robust mitotic activity (>10 mitoses/10 high-power fields)...
April 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28416429/-life-threatening-sleepwalking-elpenor-s-syndrome-in-a-10-year-old-child
#8
M-A Madigand-Tordjman, P-J Egler, F Bertran, M Jokic, F Guénolé
Though benign in the majority of cases, sleepwalking sometimes causes injuries due, among other causes, to falls. Such accidents can be life-threatening - a situation that has been termed Elpenor syndrome (in reference to an accident experienced by a character in Homer's epic The Odyssey) - in particular when entailing defenestration. This syndrome has been described in adults and adolescents; we report here a case in a child. OBSERVATION: This 10-year-old girl was admitted at night to our hospital after a 3-m fall at home...
April 14, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28384877/renal-primitive-neuroectodermal-tumour-case-report-of-a-rare-entity
#9
Sai Chandana Gali, B N Kumarguru, Balachandra Bhat, A S Ramaswamy, M Udaya Kumar
The peripheral Primitive Neuroectodermal Tumour (PNET) is a member of the family of small round cell tumours. PNET is more aggressive in kidney when compared to the other sites. It usually presents in childhood or adolescence. It has an aggressive clinical course and may process towards metastatic disease culminating in death. A 24-year-old female presented with left sided abdominal swelling. Abdominal ultrasound confirmed a heterogeneous left renal mass. Consequently the patient underwent nephrectomy of left kidney and left oophorectomy...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28376845/rare-adrenal-gland-incidentaloma-an-unusual-ewing-s-sarcoma-family-of-tumor-presentation-and-literature-review
#10
Hui Guo, Shuaiqi Chen, Shukun Liu, Kaixuan Wang, Erpeng Liu, Faping Li, Yuchuan Hou
BACKGROUND: Members of the Ewing's sarcoma family of tumor (ESFT) are malignant neoplasms and rarely observed in the adrenal gland. CASE PRESENTATION: We report an extremely exceptional case of ESFT rising from the adrenal gland in a 57-year-old Chinese man. The patient was hospitalized with abdominal swelling for 2 months. Computed tomography (CT) scan revealed a nearly-circular mass measuring about 8.1 × 10.6 cm in the right adrenal region. The patient underwent right adrenal resection...
April 4, 2017: BMC Urology
https://www.readbyqxmd.com/read/28375169/an-assessment-of-early-response-to-targeted-therapy-via-molecular-imaging-a-pilot-study-of-3-deoxy-3-18-f-fluorothymidine-positron-emission-tomography-18-f-flt-pet-ct-in-prostate-adenocarcinoma
#11
Kalevi Kairemo, Gregory C Ravizzini, Homer A Macapinlac, Vivek Subbiah
Fluorothymidine is a thymidine analog labeled with fluorine-18 fluorothymidine for positron emission tomography ((18)F-FLT-PET) imaging. Thymidine is a nucleic acid that is used to build DNA. Fluorine-18 fluorothymidine ((18)F-FLT) utilizes the same metabolic pathway as does thymidine but has a very low incidence of being incorporated into the DNA (<1%). (18)F-FLT-PET could have a role in the evaluation of response to targeted therapy. We present here a pilot study where we investigated cellular metabolism and proliferation in patients with prostate cancer before and after targeted therapy...
April 4, 2017: Diagnostics
https://www.readbyqxmd.com/read/28337750/efficacy-and-safety-of-the-drugs-used-to-reverse-direct-oral-anticoagulants-a-systematic-review-and-meta-analysis
#12
REVIEW
Luis Teodoro da Luz, Mylene Marchand, Bartolomeu Nascimento, Homer Tien, Avery Nathens, Prakesh Shah
BACKGROUND: Direct oral anticoagulants (DOACs) are effective and safe for prophylaxis and treatment of thromboembolic phenomena. However, managing DOACs during bleeding emergencies is challenging. A systematic review and meta-analysis was conducted on studies addressing efficacy and safety of the drugs used for reversal of DOACs. STUDY DESIGN AND METHODS: Medline, Embase, Cochrane Library, and ClinicalTrials.gov were searched up to September 2016. Studies that examined clinical and laboratory effects of drugs used to reverse DOACs were included...
March 24, 2017: Transfusion
https://www.readbyqxmd.com/read/28337539/homer1-vesl-1-in-the-rat-esophagus-focus-on-myenteric-plexus-and-neuromuscular-junction
#13
J Zimmermann, W L Neuhuber, M Raab
Homer1, a scaffolding protein of the postsynaptic density (PSD), enriched at excitatory synapses is known to anchor and modulate group I metabotropic glutamate receptors (mGluRs) and different channel- and receptor-proteins. Homer proteins are expressed in neurons of different brain regions, but also in non-neuronal tissues like skeletal muscle. Occurrence and location of Homer1 and mGluR5 in myenteric plexus and neuromuscular junctions (NMJ) of rat esophagus have yet not been characterized. We located Homer1 and mGluR5 immunoreactivity (-iry) in rat esophagus and focused on myenteric neurons, intraganglionic laminar endings (IGLEs) and NMJs, using double- and triple-label immunohistochemistry and confocal laser scanning microscopy...
March 23, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28335736/the-association-of-emergency-department-presentations-in-pregnancy-with-hospital-admissions-for-postnatal-depression-pnd-a-cohort-study-based-on-linked-population-data
#14
Fenglian Xu, Elizabeth A Sullivan, Roberto Forero, Caroline S E Homer
BACKGROUND: To investigate the impact of presenting to an Emergency Department (ED) during pregnancy on postnatal depression (PND) in women in New South Wales (NSW), Australia. METHOD: An epidemiological population-based study using linked data from the NSW Emergency Department Data Collection (EDDC), the NSW Perinatal Data Collection (PDC) and the NSW Admitted Patients Data Collection (APDC) was conducted. Women who gave birth to their first child in NSW between 1 January 2006 and 31 December 2010 were followed up from pregnancy to the end of the first year after birth...
March 23, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/28306571/cns-syndromes-associated-with-antibodies-against-metabotropic-receptors
#15
Eric Lancaster
PURPOSE OF REVIEW: Autoantibodies to Central nervous system (CNS) metabotropic receptors are associated with a growing family of autoimmune brain diseases, including encephalitis, basal ganglia encephalitis, Ophelia syndrome, and cerebellitis. The purpose of this review is to summarize the state of knowledge regarding the target receptors, the neurological autoimmune disorders, and the pathogenic mechanisms. RECENT FINDINGS: Antibodies to the γ-aminobutyric acid B receptor are associate with limbic encephalitis and severe seizures, often with small cell lung cancers...
June 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28278348/a-prospective-multi-institutional-pathologist-based-assessment-of-4-immunohistochemistry-assays-for-pd-l1-expression-in-non-small-cell-lung-cancer
#16
David L Rimm, Gang Han, Janis M Taube, Eunhee S Yi, Julia A Bridge, Douglas B Flieder, Robert Homer, William W West, Hong Wu, Anja C Roden, Junya Fujimoto, Hui Yu, Robert Anders, Ashley Kowalewski, Christopher Rivard, Jamaal Rehman, Cory Batenchuk, Virginia Burns, Fred R Hirsch, Ignacio I Wistuba
Importance: Four assays registered with the US Food and Drug Administration (FDA) detect programmed cell death ligand 1 (PD-L1) to enrich for patient response to anti-programmed cell death 1 and anti-PD-L1 therapies. The tests use 4 separate PD-L1 antibodies on 2 separate staining platforms and have their own scoring systems, which raises questions about their similarity and the potential interchangeability of the tests. Objective: To compare the performance of 4 PD-L1 platforms, including 2 FDA-cleared assays, 1 test for investigational use only, and 1 laboratory-developed test...
March 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28211796/fluence-correction-factor-for-graphite-calorimetry-in-a-clinical-high-energy-carbon-ion-beam
#17
A Lourenço, R Thomas, M Homer, H Bouchard, S Rossomme, J Renaud, T Kanai, G Royle, H Palmans
The aim of this work is to develop and adapt a formalism to determine absorbed dose to water from graphite calorimetry measurements in carbon-ion beams. Fluence correction factors, [Formula: see text], needed when using a graphite calorimeter to derive dose to water, were determined in a clinical high-energy carbon-ion beam. Measurements were performed in a 290 MeV/n carbon-ion beam with a field size of 11  ×  11 cm(2), without modulation. In order to sample the beam, a plane-parallel Roos ionization chamber was chosen for its small collecting volume in comparison with the field size...
April 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28190872/upper-airway-obstruction-requiring-emergent-tracheostomy-secondary-to-laryngeal-sarcoidosis-a-case-report
#18
Changwan Ryu, Erica L Herzog, Hongyi Pan, Robert Homer, Mridu Gulati
BACKGROUND Laryngeal sarcoidosis is a rare extrapulmonary manifestation of sarcoidosis, accounting for 0.33-2.1% of cases. A life-threatening complication of laryngeal sarcoidosis is upper airway obstruction. In this report we describe our experience in the acute and chronic care of a patient who required an emergent tracheostomy, with the aim to provide further insight into this difficult to manage disease. CASE REPORT A 37-year-old African American female with a 10-year history of stage 1 sarcoidosis presented with severe dyspnea...
February 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28187771/the-effect-of-estradiol-on-granulosa-cell-responses-to-fsh-in-women-with-polycystic-ovary-syndrome
#19
Michael V Homer, Marcus A Rosencrantz, Rana F Shayya, R Jeffrey Chang
BACKGROUND: The influence of estradiol (E2) on granulosa cell (GC) function has not been tested clinically in women with polycystic ovary syndrome (PCOS). The objective of this study is to determine if E2 influences GC responses to FSH in women with PCOS. METHODS: This is a two phase, single cohort study conducted over a 2-year period at a single academic center. Nine women with PCOS according to NIH criteria. In Phase 1, FSH stimulation of GC responses as measured by E2 and Inhibin B (Inh B) were assessed before and at 5 and 6 weeks after GnRH agonist administration...
February 10, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28137784/reducing-liver-function-tests-for-statin-monitoring-an-observational-comparison-of-two-clinical-commissioning-groups
#20
COMPARATIVE STUDY
Kate Homer, John Robson, Susannah Solaiman, Abigail Davis, Saima Zubeda Khan, David McCoy, Rohini Mathur, Sally Hull, Kambiz Boomla
BACKGROUND: Current liver function testing for statin monitoring is largely unnecessary and costly. Statins do not cause liver disease. Both reduction in test frequency and use of a single alanine transaminase (ALT) rather than a full seven analyte liver function test (LFT) array would reduce cost and may benefit patients. AIM: To assess LFT testing in relation to statin use and evaluate an intervention to reduce full-array LFTs ordered by GPs for statin monitoring...
March 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
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