1
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Oh DM, McManus M, Markovic D, Ovbiagele B, Sanossian N, Towfighi A. The link between insurance and blood pressure control in U.S. stroke survivors. J Neurol Sci 2024; 461:123043. [PMID: 38744215 DOI: 10.1016/j.jns.2024.123043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND After a stroke, poorly controlled blood pressure (BP) is associated with a higher risk of recurrent vascular events. Despite the importance of controlling BP to avert recurrent vascular events, fewer than half of stroke survivors in the United States achieve BP control. It is unclear to what extent insurance status affects BP levels after stroke. METHODS We assessed BP control among adults with a history of stroke who participated in the National Health and Nutrition Examination Surveys from 1999 through 2016. The relationship between insurance type and BP level (low normal: <120/80 mmHg and normal: <140/90 mmHg) were evaluated using logistic regression before and after adjusting for sociodemographic characteristics and medical comorbidities for those <65 years and ≥ 65 years. RESULTS Among 1646 adult stroke survivors (weighted n = 5,586,417), 30% had BP in the low normal range while 64% had BP in the normal range. Among 613 stroke survivors <65 years (weighted n = 2,396,980), only those with other government insurance (CHAMPVA, CHAMPUS/TRICARE) had better BP control than the uninsured (adjusted HR 2.68, 95% CI 0.99-7.25). Among 1033 participants ≥65 years (weighted n = 3,189,437), those with private insurance plus Medicare trended toward better normal BP compared to Medicare alone (adjusted HR 1.34, 95% CI 0.94-1.90). CONCLUSIONS Only stroke survivors with CHAMPVA, CHAMPUS/TRICARE government insurance in the United States have lower odds of controlled BP compared to no insurance among those <65 years. Insurance alone does not improve BP control among stroke survivors.
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Affiliation(s)
- Daniel M Oh
- Department of Neurology, Kaiser Permanente, 10800 Magnolia Ave, Riverside, CA 92505, USA.
| | - Michael McManus
- Department of Neurology, Scripps Clinic Medical Group, 9898 Genesee Ave, La Jolla, CA 92037, USA
| | - Daniela Markovic
- Department of Medicine, University of California, Los Angeles, 100 Medical Plaza Driveway, Los Angeles, CA 90095, USA.
| | - Bruce Ovbiagele
- Department of Neurology, University of California, San Francisco, 4150 Clement St, San Francisco, CA 94121, USA.
| | - Nerses Sanossian
- Department of Neurology, Los Angeles General Medical Center, 1100 N. State St, A4E, Los Angeles, CA 90033, USA; Department of Neurology, Keck School of Medicine, University of Southern California, 1975 Zonal Ave, Los Angeles, CA 90033, USA.
| | - Amytis Towfighi
- Department of Neurology, Los Angeles General Medical Center, 1100 N. State St, A4E, Los Angeles, CA 90033, USA; Department of Neurology, Keck School of Medicine, University of Southern California, 1975 Zonal Ave, Los Angeles, CA 90033, USA.
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2
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Podolsky MJ, Kheyfets B, Pandey M, Beigh AH, Yang CD, Lizama Valenzuela C, Datta R, Wolters PJ, McManus M, Qi L, Atabai K. Genome-wide screens identify SEL1L as an intracellular rheostat controlling collagen turnover. bioRxiv 2023:2023.01.13.523943. [PMID: 36711851 PMCID: PMC9882208 DOI: 10.1101/2023.01.13.523943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Accumulating evidence has implicated impaired extracellular matrix (ECM) clearance as a key factor in fibrotic disease. Despite decades of research elucidating the effectors of ECM clearance, relatively little is understood regarding the upstream regulation of this process. Collagen is the most abundant constituent of normal and fibrotic ECM in mammalian tissues. Its catabolism occurs through extracellular proteolysis and cell-mediated uptake of collagen fragments for intracellular degradation. Given the paucity of information regarding the regulation of this latter process, we executed unbiased genome-wide screens to understand the molecular underpinnings of cell-mediated collagen clearance. Using this approach, we discovered a previously unappreciated mechanism through which collagen biosynthesis is sensed by cells internally and directly regulates clearance of extracellular collagen. The sensing mechanism is dependent on endoplasmic reticulum-resident protein SEL1L and occurs via a noncanonical function of SEL1L. This pathway functions as a homeostatic negative feedback loop that limits collagen accumulation in tissues. In human fibrotic lung disease, the induction of this collagen clearance pathway by collagen synthesis is impaired, thereby contributing to the pathological accumulation of collagen in lung tissue. Thus cell-autonomous, rheostatic collagen clearance is a previously unidentified pathway of tissue homeostasis.
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3
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van den Elzen P, Sander T, Palmans H, McManus M, Woodall N, Lee N, Fox OJL, Jones RM, Angal-Kalinin D, Subiel A. Alanine response to low energy synchrotron x-ray radiation. Phys Med Biol 2023; 68:065011. [PMID: 36731142 DOI: 10.1088/1361-6560/acb886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 02/01/2023] [Indexed: 02/04/2023]
Abstract
Objective. The radiation response of alanine is very well characterized in the MV photon energy range where it can be used to determine the dose delivered with an accuracy better than 1%, making it suitable as a secondary standard detector in cancer radiation therapy. This is not the case in the very low energy keV x-ray range where the alanine response is affected by large uncertainties and is strongly dependent on the x-ray beam energy. This motivated the study undertaken here.Approach. Alanine pellets with a nominal thickness of 0.5 mm and diameter of 5 mm were irradiated with monoenergetic x-rays at the Diamond Light Source synchrotron, to quantify their response in the 8-20 keV range relative to60Co radiation. The absorbed dose to graphite was measured with a small portable graphite calorimeter, and the DOSRZnrc code in the EGSnrc Monte Carlo package was used to calculate conversion factors between the measured dose to graphite and the absorbed dose to water delivered to the alanine pellets. GafChromic EBT3 films were used to measure the beam profile for modelling in the MC simulations.Main results. The relative responses measured in this energy range were found to range from 0.616 to 0.643, with a combined relative expanded uncertainty of 3.4%-3.5% (k= 2), where the majority of the uncertainty originated from the uncertainty in the alanine readout, due to the small size of the pellets used.Significance. The measured values were in good agreement with previously published data in the overlapping region of x-ray energies, while this work extended the dataset to lower energies. By measuring the response to monoenergetic x-rays, the response to a more complex broad-spectrum x-ray source can be inferred if the spectrum is known, meaning that this work supports the establishment of alanine as a secondary standard dosimeter for low-energy x-ray sources.
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Affiliation(s)
- P van den Elzen
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
| | - T Sander
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - H Palmans
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- MedAustron Ion Therapy Center, Wiener Neustadt, Austria
| | - M McManus
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - N Woodall
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - N Lee
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - O J L Fox
- Diamond Light Source Ltd, Harwell Science Innovation Campus, Didcot, United Kingdom
| | - R M Jones
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
| | - D Angal-Kalinin
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
- Science and Technology Facilities Council, Accelerator Science and Technology Centre, Daresbury, United Kingdom
| | - A Subiel
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- University College London, UCL Cancer Institute, London, United Kingdom
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4
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Tay NQ, McManus M. Cell-interaction based CRISPR screening using intercellular barcode transfer. The Journal of Immunology 2022. [DOI: 10.4049/jimmunol.208.supp.173.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Cell to cell interaction is one of the fundamental paradigms in cell biology and it is central to immune processes. While recent advances have allowed us to monitor cell interactions both in vitro and in vivo, doing so at large scales with complex interactions remain challenging. We have developed Relay, a scalable technology by which cellular interactions can be tracked via molecular barcoding and intercellular transfer of barcodes. We employed our system to perform a novel cell interaction-based CRISPR screen that was not possible with conventional CRISPR screening strategies. In our screen, we investigated factors that are involved in antigen processing, presentation, and transfer in myeloid cells using a myeloid-T cell co-culture system. By utilizing CRISPR/Cas9 together with Relay, we were able to perform genome-wide perturbations in myeloid cells and concurrently track myeloid-T cell interactions, allowing us to directly associate antigen sampling by T cells to genetic perturbations affecting antigen processing in the myeloid cells.
Supported by grant from NIH (U01 CA217882).
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Affiliation(s)
- Neil Q Tay
- 1University of California, San Francisco
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5
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McManus M, Romano F, Royle G, Botnariuc D, Shipley D, Palmans H, Subiel A. Determination of beam quality correction factors for the Roos plane-parallel ionisation chamber exposed to very high energy electron (VHEE) beams using Geant4. Phys Med Biol 2022; 67. [DOI: 10.1088/1361-6560/ac5a94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 02/28/2022] [Indexed: 11/12/2022]
Abstract
Abstract
Detailed characterisation of the Roos secondary standard plane-parallel ionisation chamber has been conducted in a novel 200 MeV Very High Energy Electron (VHEE) beam with reference to the standard 12 MeV electron calibration beam used in our experimental work. Stopping-power-ratios and perturbation factors have been determined for both beams and used to calculated the beam quality correction factor using the Geant4 general purpose MC code. These factors have been calculated for a variety of charged particle transport parameters available in Geant4 which were found to pass the Fano cavity test. Stopping-power-ratios for the 12 MeV electron calibration beam quality were found to agree within uncertainties to that quoted by current dosimetry protocols. Perturbation factors were found to vary by up-to 4% for the calibration beam depending on the parameter configuration, compared with only 0.8% for the VHEE beam. Beam quality correction factors were found to describe an approximately 10% lower dose than would be originally calculated if a beam quality correction were not accounted for. Moreover, results presented here largely resolve unphysical chamber measurements, such as collection efficiencies greater than 100%, and assist in the accurate determination of absorbed dose and ion recombination in secondary standard ionisation chambers.
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Freene N, McManus M, Mair T, Tan R, Davey R. Association of Device-Measured Physical Activity and Sedentary Behaviour With Cardiovascular Risk Factors, Health-Related Quality-Of-Life And Exercise Capacity Over 12-Months in cardiac Rehabilitation Attendees With Coronary Heart Disease. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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McManus M, Romano F, Royle G, Palmans H, Subiel A. A Geant4 Fano test for novel very high energy electron beams. Phys Med Biol 2021; 66. [PMID: 34844225 DOI: 10.1088/1361-6560/ac3e0f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 11/29/2021] [Indexed: 11/12/2022]
Abstract
Objective.The boundary crossing algorithm available in Geant4 10.07-p01 general purpose Monte Carlo code has been investigated for a 12 and 200 MeV electron source by the application of a Fano cavity test.Approach.Fano conditions were enforced through all simulations whilst varying individual charged particle transport parameters which control particle step size, ionisation and single scattering.Main Results.At 12 MeV, Geant4 was found to return excellent dose consistency within 0.1% even with the default parameter configurations. The 200 MeV case, however, showed significant consistency issues when default physics parameters were employed with deviations from unity of more than 6%. The effect of the inclusion of nuclear interactions was also investigated for the 200 MeV beam and was found to return good consistency for a number of parameter configurations.Significance.The Fano test is a necessary investigation to ensure the consistency of charged particle transport available in Geant4 before detailed detector simulations can be conducted.
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Affiliation(s)
- M McManus
- National Physicsal Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom.,University College London, Gower Street, WC1E 6BT, United Kingdom
| | - F Romano
- Instituto Nazionale Di Fisica Nucleare, Sezione Di Catania, Catania, Italy
| | - G Royle
- University College London, Gower Street, WC1E 6BT, United Kingdom
| | - H Palmans
- National Physicsal Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom.,MedAustron Ion Therapy Center, Marie-Curie Strasse 5, A-2700 Wiener Neustadt, Austria
| | - A Subiel
- National Physicsal Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom
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8
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Deshpande SJ, Vitali S, Thiagarajan R, Brediger S, McManus M, Geva A. Coagulations Studies Do Not Correlate With Each Other or With Hematologic Complications During Pediatric Extracorporeal Membrane Oxygenation. Pediatr Crit Care Med 2021; 22:542-552. [PMID: 33660700 PMCID: PMC8178186 DOI: 10.1097/pcc.0000000000002698] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Anticoagulation plays a key role in the management of children supported with extracorporeal membrane oxygenation. However, the ideal strategy for monitoring anticoagulation remains unclear. Our objective was to evaluate the utility of laboratory measures of anticoagulation in pediatric extracorporeal membrane oxygenation. DESIGN Retrospective cohort study. SETTING Quaternary care academic children's hospital. PATIENTS Children in a noncardiac PICU cannulated to extracorporeal membrane oxygenation in 2010-2016. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Demographic data, laboratory values, and heparin doses were extracted from the enterprise data warehouse. Primary diagnoses, indications for cannulation, hemorrhagic and thrombotic complications, and survival outcomes were abstracted from the local registry used for Extracorporeal Life Support Organization reporting. Statistical models accounting for repeated measures using generalized estimating equations were constructed to evaluate correlations between heparin doses and laboratory values; among laboratory values; and between heparin dose or laboratory values and clinical outcomes. One hundred thirty-three unique patients-78 neonates and 55 older patients-were included in the study. There was no significant association between antifactor Xa level, activated partial thromboplastin time, activated clotting time, or heparin dose with hemorrhage or thrombosis (odds ratio ≅ 1 for all associations). There was weak-to-moderate correlation between antifactor Xa, activated partial thromboplastin time, and activated clotting time in both neonates and older pediatric patients (R2 < 0.001 to 0.456). Heparin dose correlated poorly with laboratory measurements in both age groups (R2 = 0.010-0.063). CONCLUSIONS In children supported with extracorporeal membrane oxygenation, heparin dose correlates poorly with common laboratory measures of anticoagulation, and these laboratory measures correlate poorly with each other. Neither heparin dose nor laboratory measures correlate with hemorrhage or thrombosis. Further work is needed to identify better measures of anticoagulation in order to minimize morbidity and mortality associated with extracorporeal membrane oxygenation.
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Affiliation(s)
- Shyam J. Deshpande
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA
| | - Sally Vitali
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, Boston, MA
- Department of Anaesthesia, Harvard Medical School, Boston, MA
| | - Ravi Thiagarajan
- Department of Cardiology, Boston Children’s Hospital, Boston, MA
- Department of Pediatrics, Harvard Medical School, Boston, MA
| | - Steven Brediger
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, Boston, MA
| | - Michael McManus
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, Boston, MA
- Department of Anaesthesia, Harvard Medical School, Boston, MA
| | - Alon Geva
- Division of Critical Care Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, Boston, MA
- Department of Anaesthesia, Harvard Medical School, Boston, MA
- Computational Health Informatics Program, Boston Children’s Hospital, Boston, MA
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9
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Hahn WC, Bader JS, Braun TP, Califano A, Clemons PA, Druker BJ, Ewald AJ, Fu H, Jagu S, Kemp CJ, Kim W, Kuo CJ, McManus M, B Mills G, Mo X, Sahni N, Schreiber SL, Talamas JA, Tamayo P, Tyner JW, Wagner BK, Weiss WA, Gerhard DS. An expanded universe of cancer targets. Cell 2021; 184:1142-1155. [PMID: 33667368 PMCID: PMC8066437 DOI: 10.1016/j.cell.2021.02.020] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 01/05/2021] [Accepted: 02/05/2021] [Indexed: 12/15/2022]
Abstract
The characterization of cancer genomes has provided insight into somatically altered genes across tumors, transformed our understanding of cancer biology, and enabled tailoring of therapeutic strategies. However, the function of most cancer alleles remains mysterious, and many cancer features transcend their genomes. Consequently, tumor genomic characterization does not influence therapy for most patients. Approaches to understand the function and circuitry of cancer genes provide complementary approaches to elucidate both oncogene and non-oncogene dependencies. Emerging work indicates that the diversity of therapeutic targets engendered by non-oncogene dependencies is much larger than the list of recurrently mutated genes. Here we describe a framework for this expanded list of cancer targets, providing novel opportunities for clinical translation.
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Affiliation(s)
- William C Hahn
- Dana-Farber Cancer Institute, Department of Medical Oncology, 450 Brookline Avenue, Boston, MA, USA.
| | - Joel S Bader
- Department of Biomedical Engineering and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Theodore P Braun
- Knight Cancer Institute and Division of Hematology and Medical Oncology, Oregon Health & Science University, Portland, OR, USA
| | - Andrea Califano
- Department of Systems Biology, Biomedical Informatics, Biochemistry and Molecular Biophysics, and Medicine, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | | | - Brian J Druker
- Knight Cancer Institute and Division of Hematology and Medical Oncology, Oregon Health & Science University, Portland, OR, USA
| | - Andrew J Ewald
- Department of Cell Biology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Haian Fu
- Department of Pharmacology and Chemical Biology, Emory Chemical Biology Discovery Center, and Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Subhashini Jagu
- Office of Cancer Genomics, Center for Cancer Genomics, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Christopher J Kemp
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - William Kim
- Moores Cancer Center, Center for Novel Therapeutics and Department of Medicine, UC San Diego, La Jolla, CA, USA
| | - Calvin J Kuo
- Hematology Division, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael McManus
- Department of Microbiology and Immunology, UCSF Diabetes Center, and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Gordon B Mills
- Department of Cell, Development and Cancer Biology, Knight Cancer Institute, Oregon Health and Sciences University, Portland, OR, USA
| | - Xiulei Mo
- Department of Pharmacology and Chemical Biology, Emory Chemical Biology Discovery Center, and Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Nidhi Sahni
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX, USA
| | | | - Jessica A Talamas
- Dana-Farber Cancer Institute, Department of Medical Oncology, 450 Brookline Avenue, Boston, MA, USA
| | - Pablo Tamayo
- Moores Cancer Center, Center for Novel Therapeutics and Department of Medicine, UC San Diego, La Jolla, CA, USA
| | - Jeffrey W Tyner
- Knight Cancer Institute, Oregon Health & Science University and Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | | | - William A Weiss
- Departments of Neurology, Neurological Surgery, Pediatrics, and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Daniela S Gerhard
- Office of Cancer Genomics, Center for Cancer Genomics, National Cancer Institute, NIH, Bethesda, MD, USA
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Malaspina DM, Goodrich K, Livi R, Halekas J, McManus M, Curry S, Bale SD, Bonnell JW, de Wit TD, Goetz K, Harvey PR, MacDowall RJ, Pulupa M, Case AW, Kasper JC, Korreck KE, Larson D, Stevens ML, Whittlesey P. Plasma Double Layers at the Boundary Between Venus and the Solar Wind. Geophys Res Lett 2020; 47:e2020GL090115. [PMID: 33380758 PMCID: PMC7757269 DOI: 10.1029/2020gl090115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/14/2020] [Accepted: 10/03/2020] [Indexed: 06/12/2023]
Abstract
The solar wind is slowed, deflected, and heated as it encounters Venus's induced magnetosphere. The importance of kinetic plasma processes to these interactions has not been examined in detail, due to a lack of constraining observations. In this study, kinetic-scale electric field structures are identified in the Venusian magnetosheath, including plasma double layers. The double layers may be driven by currents or mixing of inhomogeneous plasmas near the edge of the magnetosheath. Estimated double-layer spatial scales are consistent with those reported at Earth. Estimated potential drops are similar to electron temperature gradients across the bow shock. Many double layers are found in few high cadence data captures, suggesting that their amplitudes are high relative to other magnetosheath plasma waves. These are the first direct observations of plasma double layers beyond near-Earth space, supporting the idea that kinetic plasma processes are active in many space plasma environments.
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Affiliation(s)
- D. M. Malaspina
- Department of Astrophysical and Planetary SciencesUniversity of Colorado BoulderBoulderCOUSA
- Laboratory for Atmospheric and Space PhysicsUniversity of Colorado BoulderBoulderCOUSA
| | - K. Goodrich
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - R. Livi
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - J. Halekas
- Department of Physics and AstronomyUniversity of IowaIowa CityIAUSA
| | - M. McManus
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - S. Curry
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - S. D. Bale
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
- Physics DepartmentUniversity of CaliforniaBerkeleyCAUSA
| | - J. W. Bonnell
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | | | - K. Goetz
- School of Physics and AstronomyUniversity of Minnesota, Twin CitiesMinneapolisMNUSA
| | - P. R. Harvey
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | | | - M. Pulupa
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - A. W. Case
- Harvard‐Smithsonian Center for AstrophysicsCambridgeMAUSA
| | - J. C. Kasper
- Climate and Space Sciences and EngineeringUniversity of MichiganAnn ArborMIUSA
| | - K. E. Korreck
- Harvard‐Smithsonian Center for AstrophysicsCambridgeMAUSA
| | - D. Larson
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | - M. L. Stevens
- Harvard‐Smithsonian Center for AstrophysicsCambridgeMAUSA
| | - P. Whittlesey
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
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Jarlier F, Joly N, Fedy N, Magalhaes T, Sirotti L, Paganiban P, Martin F, McManus M, Hupé P. QUARTIC: QUick pArallel algoRithms for high-Throughput sequencIng data proCessing. F1000Res 2020; 9:240. [PMID: 32913637 PMCID: PMC7429925 DOI: 10.12688/f1000research.22954.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/05/2020] [Indexed: 11/20/2022] Open
Abstract
Life science has entered the so-called 'big data era' where biologists, clinicians and bioinformaticians are overwhelmed with high-throughput sequencing data. While they offer new insights to decipher the genome structure they also raise major challenges to use them for daily clinical practice care and diagnosis purposes as they are bigger and bigger. Therefore, we implemented a software to reduce the time to delivery for the alignment and the sorting of high-throughput sequencing data. Our solution is implemented using Message Passing Interface and is intended for high-performance computing architecture. The software scales linearly with respect to the size of the data and ensures a total reproducibility with the traditional tools. For example, a 300X whole genome can be aligned and sorted within less than 9 hours with 128 cores. The software offers significant speed-up using multi-cores and multi-nodes parallelization.
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Affiliation(s)
- Frédéric Jarlier
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France
| | | | - Nicolas Fedy
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,Université Paris Descartes, Paris, F-75006, France
| | - Thomas Magalhaes
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,Université Paris Descartes, Paris, F-75006, France
| | - Leonor Sirotti
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,Université Paris Descartes, Paris, F-75006, France
| | - Paul Paganiban
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,Université Paris Descartes, Paris, F-75006, France
| | - Firmin Martin
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,Université Paris Descartes, Paris, F-75006, France
| | | | - Philippe Hupé
- Institut Curie, Paris, F-75005, France.,U900, Inserm, Paris, F-75005, France.,PSL Research University, Paris, France.,Mines Paris Tech, Fontainebleau, F-77305, France.,UMR144, CNRS, Paris, F-75005, France
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Wang L, Lander M, McManus M, Butcher K, Colman J, Chadwick H, Jenness S, Letim M, Simmonds B, Hastie C, Farshid A. 759 Use of Activity Trackers to Monitor Activity Patterns in Cardiac Rehabilitation Patients. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ariyarathna N, Raman Srinivasan J, Hastie C, McCallum C, McManus M, Moosavi V, Yang Q, Nkoane-Kelaeng B, Olivia C, Farshid A. Nurse-Led Protocol-Based Atrial Fibrillation Clinic Associated with High Quality Care for Patients. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Román LS, Menon BK, Blasco J, Hernández-Pérez M, Dávalos A, Majoie CBLM, Campbell BCV, Guillemin F, Lingsma H, Anxionnat R, Epstein J, Saver JL, Marquering H, Wong JH, Lopes D, Reimann G, Desal H, Dippel DWJ, Coutts S, du Mesnil de Rochemont R, Yavagal D, Ferre JC, Roos YBWEM, Liebeskind DS, Lenthall R, Molina C, Al Ajlan FS, Reddy V, Dowlatshahi D, Sourour NA, Oppenheim C, Mitha AP, Davis SM, Weimar C, van Oostenbrugge RJ, Cobo E, Kleinig TJ, Donnan GA, van der Lugt A, Demchuk AM, Berkhemer OA, Boers AMM, Ford GA, Muir KW, Brown BS, Jovin T, van Zwam WH, Mitchell PJ, Hill MD, White P, Bracard S, Goyal M, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S, Wakhloo A, Moonis M, Henniger N, Goddeau R, van den Berg R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Tunguturi A, Onteddu S, Carandang R, Howk M, Koudstaal PJ, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Meler P, Huerga E, Gelabert S, Coscojuela P, van Zwam WH, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Rovira A, Molina CA, Millán M, Muñoz L, Roos YB, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, García Bermejo P, Remollo S, Castaño C, García-Sort R, van der Lugt A, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Dávalos A, Chamorro A, Urra X, Obach V, van Oostenbrugge RJ, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Ariño H, Aceituno A, Rudilosso S, Renu A, Majoie CB, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Quesada H, Rubio F, Cano L, Lara B, Dippel DW, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Brown MM, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Liebig T, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Stijnen T, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Mutlu G, Rosso C, Szatmary Z, Yger M, Andersson T, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Leautaud A, Renkes C, Serre I, Desal H, Mattle H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Wahlgren N, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, van der Heijden E, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Birchenall J, Bodiguel E, Calvet D, Domigo V, Ghannouti N, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Trystram D, Turc G, Berge J, Sibon I, Fleitour N, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Hooijenga I, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, Bejot Y, Chavent A, Gentil A, Kazemi A, Puppels C, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Pellikaan W, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Geerling A, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Lindl-Velema A, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Piotin M, Pistocchi S, Redjem H, Drouineau J, van Vemde G, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, de Ridder A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Greebe P, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Bourdain F, Evrard S, Graveleau P, Decroix JP, de Bont-Stikkelbroeck J, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, de Meris J, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Labach C, Lautrette G, Denier C, Saliou G, Janssen K, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Sarov M, Bonneville JF, Moulin T, Biondi A, Struijk W, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Bonnet AL, Cogez J, Kazemi A, Touze E, Licher S, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Deplanque D, Girot M, Henon H, Kalsoum E, Boodt N, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Machi P, Mourand I, Riquelme C, Bounolleau P, Ros A, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Venema E, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Slokkers I, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Freeman J, Ford I, Markus H, Wardlaw J, Ganpat RJ, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, Perry R, Dixit A, Cloud G, Clifton A, Mulder M, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Kandasamy N, Goddard T, Bamford J, Subramanian G, Saiedie N, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Heshmatollah A, Harrison L, Keshvara R, Cunningham J, Schipperen S, Vinken S, van Boxtel T, Koets J, Boers M, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez-Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Baronov D, McManus M, Butler E, Chung D, Almodovar MC. Next generation patient monitor powered by in-silico physiology. Annu Int Conf IEEE Eng Med Biol Soc 2018; 2015:4447-53. [PMID: 26737282 DOI: 10.1109/embc.2015.7319382] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The goal of this paper is to introduce a next generation patient monitoring technology that relies on objective and continuous data analytics to alleviate the data overload in the critical care unit. The technology provides the foundation for increasing the consistency and efficacy of data use in clinical practice and improving outcomes. This paper presents results for applying the approach to the hemodynamic monitoring of infants immediately following cardiac surgery and demonstrates its efficacy of estimating the probability of inadequate systemic oxygen delivery, which is an essential risk attribute in the management of critically ill patients.
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Vanderhoof MK, Lane C, McManus M, Alexander L, Christensen J. Wetlands inform how climate extremes influence surface water expansion and contraction. Hydrol Earth Syst Sci 2018; 22:1851-1873. [PMID: 34795470 PMCID: PMC8597619 DOI: 10.5194/hess-22-1851-2018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Effective monitoring and prediction of flood and drought events requires an improved understanding of how and why surface-water expansion and contraction in response to climate varies across space. This paper sought to (1) quantify how interannual patterns of surface-water expansion and contraction vary spatially across the Prairie Pothole Region (PPR) and adjacent Northern Prairie (NP) in the United States, and (2) explore how landscape characteristics influence the relationship between climate inputs and surface-water dynamics. Due to differences in glacial history, the PPR and NP show distinct patterns in regards to drainage development and wetland density, together providing a diversity of conditions to examine surface-water dynamics. We mapped surface-water extent across eleven Landsat path/rows representing the PPR and NP (images spanning 1985-2015). The PPR not only experienced a 2.6-fold increase of surface-water extent under median conditions relative to the NP, but also showed a 3.4-fold greater difference in surface-water extent between drought and deluge conditions. The relationship between surface-water extent and accumulated water availability (precipitation minus potential evapotranspiration) was quantified per watershed and statistically related to variables representing hydrology-related landscape characteristics (e.g., infiltration capacity, surface storage capacity, stream density). To investigate the influence stream-connectivity has on the rate at which surface water leaves a given location, we modeled stream-connected and stream-disconnected surface water separately. Stream-connected surface water showed a greater expansion with wetter climatic conditions in landscapes with greater total wetland area. Disconnected surface water showed a greater expansion with wetter climatic conditions in landscapes with higher wetland density, lower infiltration and less anthropogenic drainage. From these findings, we can expect that shifts in precipitation and evaporative demand will have uneven effects on surface-water quantity. Accurate predictions regarding the effect of climate change on surface-water quantity will require consideration of hydrology-related landscape characteristics including wetlands.
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Affiliation(s)
- Melanie K. Vanderhoof
- U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS980, Denver, CO 80225
| | - Charles Lane
- U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 26 W. Martin Luther King Dr., MS-A110, Cincinnati, OH 45268
| | - Michael McManus
- U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 26 W. Martin Luther King Dr., MS-A110, Cincinnati, OH 45268
| | - Laurie Alexander
- U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 1200 Pennsylvania Ave. NW (8623-P), Washington, DC 20460
| | - Jay Christensen
- U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Environmental Science Division, 944 E. Harmon Ave., Las Vegas, NV 89119
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Vanderhoof MK, Lane C, McManus M, Alexander L, Christensen J. Wetlands inform how climate extremes influence surface water expansion and contraction. Hydrol Earth Syst Sci 2018; 22:1851-1873. [PMID: 34795470 DOI: 10.5194/hess-2017-581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Effective monitoring and prediction of flood and drought events requires an improved understanding of how and why surface-water expansion and contraction in response to climate varies across space. This paper sought to (1) quantify how interannual patterns of surface-water expansion and contraction vary spatially across the Prairie Pothole Region (PPR) and adjacent Northern Prairie (NP) in the United States, and (2) explore how landscape characteristics influence the relationship between climate inputs and surface-water dynamics. Due to differences in glacial history, the PPR and NP show distinct patterns in regards to drainage development and wetland density, together providing a diversity of conditions to examine surface-water dynamics. We mapped surface-water extent across eleven Landsat path/rows representing the PPR and NP (images spanning 1985-2015). The PPR not only experienced a 2.6-fold increase of surface-water extent under median conditions relative to the NP, but also showed a 3.4-fold greater difference in surface-water extent between drought and deluge conditions. The relationship between surface-water extent and accumulated water availability (precipitation minus potential evapotranspiration) was quantified per watershed and statistically related to variables representing hydrology-related landscape characteristics (e.g., infiltration capacity, surface storage capacity, stream density). To investigate the influence stream-connectivity has on the rate at which surface water leaves a given location, we modeled stream-connected and stream-disconnected surface water separately. Stream-connected surface water showed a greater expansion with wetter climatic conditions in landscapes with greater total wetland area. Disconnected surface water showed a greater expansion with wetter climatic conditions in landscapes with higher wetland density, lower infiltration and less anthropogenic drainage. From these findings, we can expect that shifts in precipitation and evaporative demand will have uneven effects on surface-water quantity. Accurate predictions regarding the effect of climate change on surface-water quantity will require consideration of hydrology-related landscape characteristics including wetlands.
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Affiliation(s)
- Melanie K Vanderhoof
- U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS980, Denver, CO 80225
| | - Charles Lane
- U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 26 W. Martin Luther King Dr., MS-A110, Cincinnati, OH 45268
| | - Michael McManus
- U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 26 W. Martin Luther King Dr., MS-A110, Cincinnati, OH 45268
| | - Laurie Alexander
- U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, 1200 Pennsylvania Ave. NW (8623-P), Washington, DC 20460
| | - Jay Christensen
- U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Environmental Science Division, 944 E. Harmon Ave., Las Vegas, NV 89119
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Ariyarathna N, Hastie C, McManus M, Doost A, Farshid A. Nurse-Led, Protocol-Based Atrial Fibrillation Clinic: An Integrated Approach to Improve Adherence to Guidelines and Outcomes. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Pellikaan W, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Geerling A, Birchenall J, Bodiguel E, Calvet D, Domigo V, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Lindl-Velema A, Trystram D, Turc G, Berge J, Sibon I, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, van Vemde G, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, de Ridder A, Bejot Y, Chavent A, Gentil A, Kazemi A, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Greebe P, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, de Bont-Stikkelbroeck J, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, de Meris J, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Salaris Silvio F, 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Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Mulder M, Deplanque D, Girot M, Henon H, Kalsoum E, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Saiedie N, Machi P, Mourand I, Riquelme C, Bounolleau P, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Heshmatollah A, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Schipperen S, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Vinken S, Freeman J, Ford I, Markus H, Wardlaw J, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, van Boxtel T, Perry R, Dixit A, Cloud G, Clifton A, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Koets J, Kandasamy N, Goddard T, Bamford J, Subramanian G, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Boers M, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Harrison L, Keshvara R, Cunningham J, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez- Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Sadun A, Ross-Cisneros F, Tian J, Anderson K, Irvine A, Karanjia R, La Morgia C, McManus M, Wallace D, Carelli V. LHON: A look into nuclear and environmental factors; What is “sufficient”? Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.02671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Sadun
- Ophthalmology; Doheny Eye Center UCLA; Pasadena CA USA
- Ophthalmology; Doheny Eye Institute; Los Angeles CA USA
| | | | - J. Tian
- Ophthalmology; Doheny Eye Center UCLA; Pasadena CA USA
| | - K. Anderson
- Ophthalmology; Doheny Eye Center UCLA; Pasadena CA USA
| | - A. Irvine
- Ophthalmology; Doheny Eye Center UCLA; Pasadena CA USA
| | - R. Karanjia
- Ophthalmology; Doheny Eye Center UCLA; Pasadena CA USA
- Ophthalmology; Ottawa Hospital Research Insitute; Ottawa Canada
- Eye Institute; University of Ottawa; Ottawa Canada
| | - C. La Morgia
- IRCCS Instituto delle Scienze Neurologiche di Bologna; UOC Clinica Neurologica; Bologna Italy
| | - M. McManus
- Center for Mitochondrial and Epigenomic Medicine; Children's Hospital of Philadelphia; Philadelphia PA USA
| | - D. Wallace
- Center for Mitochondrial and Epigenomic Medicine; Children's Hospital of Philadelphia; Philadelphia PA USA
| | - V. Carelli
- IRCCS Instituto delle Scienze Neurologiche di Bologna; UOC Clinica Neurologica; Bologna Italy
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Thiamwong L, McManus M, Suwanno J. DEVELOPMENT OF THE HEALTHY AGING MODEL: A GROUNDED THEORY STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L. Thiamwong
- College of Nursing, University of Central Florida, Orlando, Florida,
| | - M. McManus
- University of the Ozarks, Clarksville, Arkansas,
| | - J. Suwanno
- Walailak University, Tasala, Nakhon Si Thammarat, Thailand
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22
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Shkirkova K, Akam EY, Huang J, Sheth SA, Nour M, Liang CW, McManus M, Trinh V, Duckwiler G, Tarpley J, Vinuela F, Saver JL. Feasibility and utility of an integrated medical imaging and informatics smartphone system for management of acute stroke. Int J Stroke 2017; 12:953-960. [DOI: 10.1177/1747493017694386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Rapid dissemination and coordination of clinical and imaging data among multidisciplinary team members are essential for optimal acute stroke care. Aim To characterize the feasibility and utility of the Synapse Emergency Room mobile (Synapse ERm) informatics system. Methods We implemented the Synapse ERm system for integration of clinical data, computerized tomography, magnetic resonance, and catheter angiographic imaging, and real-time stroke team communications, in consecutive acute neurovascular patients at a Comprehensive Stroke Center. Results From May 2014 to October 2014, the Synapse ERm application was used by 33 stroke team members in 84 Code Stroke alerts. Patient age was 69.6 (±17.1), with 41.5% female. Final diagnosis was: ischemic stroke 64.6%, transient ischemic attack 7.3%, intracerebral hemorrhage 6.1%, and cerebrovascular-mimic 22.0%. Each patient Synapse ERm record was viewed by a median of 10 (interquartile range 6–18) times by a median of 3 (interquartile range 2–4) team members. The most used feature was computerized tomography, magnetic resonance, and catheter angiography image display. In-app tweet team, communications were sent by median 1 (interquartile range 0–1, range 0–13) users per case and viewed by median 1 (interquartile range 0–3, range 0–44) team members. Use of the system was associated with rapid treatment times, faster than national guidelines, including median door-to-needle 51.0 min (interquartile range 40.5–69.5) and median door-to-groin 94.5 min (interquartile range 85.5–121.3). In user surveys, the mobile information platform was judged easy to employ in 91% (95% confidence interval 65%–99%) of uses and of added help in stroke management in 50% (95% confidence interval 22%–78%). Conclusion The Synapse ERm mobile platform for stroke team distribution and integration of clinical and imaging data was feasible to implement, showed high ease of use, and moderate perceived added utility in therapeutic management.
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Affiliation(s)
- Kristina Shkirkova
- Department of Neurology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | | | - Josephine Huang
- Department of Neurology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Sunil A Sheth
- Department of Neurology and Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - May Nour
- Department of Neurology and Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Conrad W Liang
- Department of Neurology and Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Michael McManus
- Department of Neurology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Van Trinh
- Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Gary Duckwiler
- Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Jason Tarpley
- Department of Neurology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Fernando Vinuela
- Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
| | - Jeffrey L Saver
- Department of Neurology, Ronald Reagan UCLA Medical Center, Los Angeles, CA, USA
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Paymard M, McManus M, Farshid A. Protocol-Based AF Clinic is Associated with Excellent Compliance with Guideline Recommended Treatments. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Alexander M, Wolfe R, Ball D, Manser R, McManus M, Riedel B, Solomon B, Westerman D, Burbury K. OC-05 - D-Dimer, fibrinogen and TEG-MA predict thromboembolism in non-small cell lung cancer – interim results from a prospective cohort study. Thromb Res 2016; 140 Suppl 1:S170. [DOI: 10.1016/s0049-3848(16)30122-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Arch AE, Starkman S, Yoo B, Alfonso R, Shkirkova K, Huang J, Nour M, Tarpley J, McManus M, Kleinman JT, Vespa PM, Buitrago-Blanco M, Ng KL, Kim D, Hinman JD, Rao N, Ali LK, Liebeskind DS, Saver JL. Abstract WMP71: Multimodal Imaging Yields Low Number of Stroke Mimics Treated With Thrombolytic Therapy Without Sacrificing Door-to-Needle Times. Stroke 2016. [DOI: 10.1161/str.47.suppl_1.wmp71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Speed is critical in fibrinolytic therapy for acute ischemic stroke (AIS), but rapid decision-making may increase tPA use in stroke mimics. Complications from lytics in mimic patients, though uncommon, can be severe. Mimic treatment rates when using non-contrast CT as the only initial imaging modality have increased to as high as 34% with intensified efforts to reduce door to needle (DTN) times. Efficient imaging with MRI or multimodal CT may potentially avoid high mimic treatment rates without prolonging treatment.
Methods:
In a prospectively maintained registry, we examined all patients treated with IV tPA from January 2010 to June 2015. Institutional policy was to perform MRI first in AIS patients and start tPA on the MR table after DWI showed ischemia and GRE excluded hemorrhage; if MRI could not be performed, multimodal CT with CTA and CTP was performed.
Results:
Among 319 IV tPA treated patients, age was 71 (±15), 50% were female, and NIHSS was 13.3 (±8.0). Imaging modality before tPA was MR in 193 (61%) and CT in 126 (39%). In the entire population, the DTN time was 54 (IRQ 42-73) mins and the proportion of mimic patients was 3.1%. DTN times decreased steadily throughout the 5.5 year study period, and did not differ among patients imaged with MR vs CT (Figure). The reduction in DTN times was not associated with an increase in mimic-treated rates (Figure). Among the mimic patients, final diagnoses were migraine - 4, seizure - 3, meningitis - 1, PE - 1, and cardiac dysrhythmia - 1. Imaging modalities in mimic patients were MRI in 5 and CT in 5. Preliminary imaging reads suggested abnormality in 2/10, but final reads were normal in all. In 3/10 mimic patients, tPA infusions were stopped before full dose when ongoing imaging further clarified diagnosis.
Conclusion:
A rapid stroke assessment protocol using MRI or multimodal CT permits swift start of thrombolytic therapy and low rates of stroke mimic treatment.
Figure.
Door-to-needle time and percent stroke mimics by year.
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Affiliation(s)
| | | | - Bryan Yoo
- Ronald Regan UCLA Med Cntr, Los Angeles, CA
| | | | | | | | - May Nour
- Ronald Regan UCLA Med Cntr, Los Angeles, CA
| | | | | | | | | | | | - Kwan L Ng
- Ronald Regan UCLA Med Cntr, Los Angeles, CA
| | - Doojin Kim
- Ronald Regan UCLA Med Cntr, Los Angeles, CA
| | | | - Neal Rao
- Ronald Regan UCLA Med Cntr, Los Angeles, CA
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26
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Abstract
Hypertension is present in up to 84% of patients presenting with acute stroke, and a smaller proportion of patients have blood pressures that are below typical values in the context of cerebral ischemia. Outcomes are generally worse in those who present with either low or severely elevated blood pressure. Several studies have provided valuable information about malignant trends in blood pressure during the transition from the acute to the subacute phase of stroke. It is not uncommon for practitioners in clinical practice to identify what appear to be pressure-dependent neurologic deficits. Despite physiologic and clinical data suggesting the importance of blood pressure modulation to support cerebral blood flow to ischemic tissue, randomized controlled trials have not yielded robust evidence for this in acute ischemic stroke. We highlight previous studies involving acute-stroke patients that have defined trends in blood pressure and that have evaluated the safety and efficacy of blood-pressure modulation in acute ischemic stroke. This overview reports the current status of this topic from the perspective of a stroke neurologist and provides a framework for future research.
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Affiliation(s)
- Michael McManus
- Neurovascular Imaging Research Core & UCLA Stroke Center, University of California, Los Angeles, CA, USA
| | - David S Liebeskind
- Neurovascular Imaging Research Core & UCLA Stroke Center, University of California, Los Angeles, CA, USA.
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27
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McManus M, Ovbiagele B, Markovic D, Towfighi A. Association of Insurance Status with Stroke-Related Mortality and Long-term Survival after Stroke. J Stroke Cerebrovasc Dis 2015; 24:1924-30. [PMID: 26051667 DOI: 10.1016/j.jstrokecerebrovasdis.2015.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 03/01/2015] [Accepted: 05/06/2015] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Lack of insurance is a barrier to optimal stroke risk factor control but data on its long-term impact on stroke outcomes are sparse. We assessed the association between health insurance and long-term mortality after stroke. METHODS Using data from the National Health and Nutrition Examination Surveys 1999-2004 with follow-up mortality assessment through 2006, we examined the independent effect of health insurance on (1) stroke mortality among all adult participants (n = 15,049) and (2) vascular and all-cause mortality rates among participants with self-reported stroke (n = 563). RESULTS Among individuals without a previous stroke, uninsured individuals aged less than 65 years were more likely to die of stroke than those with insurance (adjusted hazard ratio [HR], 3.13; 95% confidence interval [CI], .96-10.23); however, among those aged 65 years or older, those with private insurance, private plus Medicare, or Medicare plus Medicaid had similar risk of stroke mortality when compared to those with Medicare alone. Stroke survivors aged 65 years or older with private insurance were less likely to die from vascular causes (adjusted HR, .38; 95% CI, .23-.63) compared to those with Medicare alone. For stroke survivors aged less than 65 years, uninsured individuals had similar all-cause mortality rates compared to their counterparts with insurance. CONCLUSIONS Insurance status influences risk of dying from a stroke in the general population, as well as long-term mortality rates among stroke survivors in the United States, but these relationships vary by age.
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Affiliation(s)
- Michael McManus
- Department of Neurology, University of Southern California, Los Angeles, CA; Department of Neurology, Rancho Los Amigos National Rehabilitation Center, Downey, CA.
| | - Bruce Ovbiagele
- Department of Neurosciences, Medical University of South Carolina, Charleston, SC
| | - Daniela Markovic
- Department of Biomathematics, University of California, Los Angeles, Los Angeles, CA
| | - Amytis Towfighi
- Department of Neurology, University of Southern California, Los Angeles, CA; Department of Neurology, Rancho Los Amigos National Rehabilitation Center, Downey, CA
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28
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McManus M, Markovic D, Valle N, Ovbiagele B, Towfighi A. Abstract T P139: Rising Rates of the Metabolic Syndrome Among Stroke Survivors in the United States. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.tp139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND:
Metabolic syndrome (MetS), a constellation of cardiometabolic risk factors clustering together, affects >47 million US adults and has been independently linked to primary and recurrent stroke risk. Prevalence and trends in MetS among stroke survivors in the United States are unknown.
OBJECTIVES:
To evaluate recent temporal trends in age and sex-specific MetS prevalence among adults with/without stroke in the US.
METHODS:
Prevalence of MetS was assessed among fasting adults ≥35 years who participated in National Health and Nutrition Examination Surveys 1999-2010 (n=9,343).
Prevalence estimates were weighted to obtain nationally representative estimates (n=430,371,669). MetS was defined by the 2009 harmonized definition. Stroke was determined by self-report.
RESULTS:
In all groups except men 35-64 years, MetS prevalence was similar among adults with and without stroke in 1999-2002 (Table). MetS prevalence rates were flat from 1999 to 2010 among those without stroke, but increased among stroke survivors, such that up to 80% of men and 86% of women with stroke had MetS, with the greatest rise among the middle-aged. Stroke survivors aged 35-64 years were ~3 times more likely to have MetS than their counterparts without stroke (OR 3.24, 95% CI 1.60-6.55 for men and OR 2.55, 95% CI 1.45-4.50 for women).
DISCUSSION:
Due to a differential rise in MetS in stroke survivors over the last 10 years, as many as 9 out of 10 stroke survivors now have MetS, suggesting that Mets may increasingly be placing people at risk for stroke. Intensified efforts aimed at identifying and treating MetS, especially among middle-aged individuals, may be warranted to avert stroke risk.
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Affiliation(s)
| | | | - Natalie Valle
- Neurology, Rancho Los Amigos National Rehabiliation Cntr, Downey, CA
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29
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Silverman MA, Misasi J, Smole S, Feldman HA, Cohen AB, Santagata S, McManus M, Ahmed AA. Eastern equine encephalitis in children, Massachusetts and New Hampshire,USA, 1970-2010. Emerg Infect Dis 2013; 19:194-201; quiz 352. [PMID: 23343480 PMCID: PMC3559032 DOI: 10.3201/eid1902.120039] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We describe the clinical, laboratory, and radiographic characteristics of 15 cases of eastern equine encephalitis in children during 1970-2010. The most common clinical and laboratory features were fever, headache, seizures, peripheral leukocytosis, and cerebrospinal fluid neutrophilic pleocytosis. Radiographic lesions were found in the basal ganglia, thalami, and cerebral cortex. Clinical outcomes included severe neurologic deficits in 5 (33%) patients, death of 4 (27%), full recovery of 4 (27%), and mild neurologic deficits in 2 (13%). We identify an association between a short prodrome and an increased risk for death or for severe disease.
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30
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McManus M, Ovbiagele B, Markovic D, Towfighi A. Abstract WMP92: Health Insurance Coverage is Associated with Mortality after Stroke. Stroke 2013. [DOI: 10.1161/str.44.suppl_1.awmp92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Management of treatable risk factors is of paramount importance to decrease stroke mortality and improve outcomes after stroke. Optimizing healthcare access serves as a foundation for risk factor management. The association between health insurance type and mortality after stroke warrants investigation.
METHODS:
Using data from the National Health and Nutrition Examination Surveys 1999-2004 with follow up mortality assessment through 2006, we examined the relationship between health insurance and (1) stroke mortality among all adult participants (n=15,049) and (2) vascular and all-cause mortality among participants with self-reported stroke (n=563). The relationship between insurance type and the aforementioned outcomes were evaluated using Cox regression after adjusting for covariates (age, sex, race, income, BMI, and major medical comorbidities).
RESULTS:
Among 10,786 participants <65 years (representing 163,891,359 individuals in the US) 69% had private insurance, 21% were not insured and 4% had Medicaid. Among 4,263 participants ≥ 65 years (representing 33,375,771 individuals in the US), 43% had Medicare + private insurance, 41% had Medicare only, 8% had private insurance only and 4.2% had Medicare + Medicaid. Stroke survivors ≥65 years with private insurance were less likely to die from vascular causes compared to those with Medicare alone (adjusted HR 0.38, CI 0.23-0.63, p<0.001). The same subjects had lower all-cause mortality if they had Medicare + private insurance compared to Medicare alone (adjusted HR 0.63, CI 0.37-1.08, p=0.07). Uninsured stroke survivors <65 years had similar all-cause mortality to those with insurance (adjusted HR 0.97, CI 0.29-3.23). In the general population, uninsured individuals <65 years were more likely to die of stroke than those with insurance (adjusted HR 3.13, CI 0.96-10.23, p=0.06); however, insurance status did not affect stroke mortality among individuals ≥65 years.
CONCLUSION:
In this nationally representative sample of the US population followed for up to 7 years, insurance status appears to have a profound, independent impact on mortality rates after stroke. These findings highlight the importance of health insurance coverage in post-stroke outcomes.
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Affiliation(s)
| | | | | | - Amytis Towfighi
- Univ of Southern California and Ranchos Los Amigos National Rehabilitation Cntr, Downey, CA
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31
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Mir-Kasimov M, Sturrock A, McManus M, Paine R. Effect of alveolar epithelial cell plasticity on the regulation of GM-CSF expression. Am J Physiol Lung Cell Mol Physiol 2012; 302:L504-11. [DOI: 10.1152/ajplung.00303.2010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Local pulmonary expression of granulocyte-macrophage colony-stimulating factor (GM-CSF) is critically important for defense of the pulmonary alveolar space. It is required for surfactant homeostasis and pulmonary innate immune responses and is protective against lung injury and aberrant repair. Alveolar epithelial cells (AEC) are a major source of GM-CSF; however, the control of homeostatic expression of GM-CSF is incompletely characterized. Increasing evidence suggests considerable plasticity of expression of AEC phenotypic characteristics. We tested the hypothesis that this plasticity extends to regulation of expression of GM-CSF using 1) MLE-12 cells (a commonly used murine cell line expressing some features of normal type II AEC, 2) primary murine AEC incubated under standard conditions [resulting in rapid spreading and loss of surfactant protein C (SP-C) expression with induction of the putative type I cell marker (T1α)], or 3) primary murine AEC on a hyaluronic acid/collagen matrix in defined medium, resulting in preservation of SP-C expression. AEC in standard cultures constitutively express abundant GM-CSF, with further induction in response to IL-1β but little response to TNF-α. In contrast, primary cells cultured to preserve SP-C expression and MLE-12 cells both express little GM-CSF constitutively, with significant induction in response to TNF-α and limited response to IL-1β. We conclude that constitutive and cytokine-induced expression of GM-CSF by AEC varies in concert with other cellular phenotypic characteristics. These changes may have important implications both for the maintenance of normal pulmonary homeostasis and for the process of repair following lung injury.
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Affiliation(s)
- Mustafa Mir-Kasimov
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Anne Sturrock
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Michael McManus
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Robert Paine
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
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Kheir JN, Lawlor MW, Ahn ES, Lehmann L, Riviello JJ, Silvera VM, McManus M, Folkerth RD. Neuropathology of a fatal case of posterior reversible encephalopathy syndrome. Pediatr Dev Pathol 2010; 13:397-403. [PMID: 20158377 DOI: 10.2350/09-04-0634-cr.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The pathology of posterior reversible encephalopathy syndrome (PRES) is undefined, since it is rarely fatal and is biopsied in only exceptional circumstances. We describe rapidly progressive PRES following stem cell transplant for acute lymphoblastic leukemia. After development of altered mental status, this 8-year-old girl had T2 prolongation of the white matter in a posterior-dominant distribution, eventually developing cerebellar edema, hemorrhage, hydrocephalus, and herniation. Despite surgical and medical management, she died 36 hours later. At autopsy, the occipital and cerebellar white matter and focal occipital cortical gray matter showed a spectrum of microvascular changes, including dilated perivascular spaces containing proteinaceous exudates and macrophages, as well as fibrinoid necrosis and acute hemorrhage, in a distribution corresponding to the neuroimaging abnormalities and reminiscent of those seen in patients with acute hypertensive encephalopathy. Of note, similar microvascular changes were not seen in the kidney or other systemic sites. Thus, the findings indicate a brain-specific microvascular compromise as the substrate of PRES, at least in the rare instance of cases progressing to fatal outcome.
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Affiliation(s)
- John N Kheir
- Department of Anesthesiology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
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33
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Mitchell ME, McManus M, Dietz J, Camitta BM, Szabo S, Havens P. Absidia corymbifera endocarditis: Survival after treatment of disseminated mucormycosis with radical resection of tricuspid valve and right ventricular free wall. J Thorac Cardiovasc Surg 2010; 139:e71-2. [DOI: 10.1016/j.jtcvs.2008.07.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 07/03/2008] [Accepted: 07/03/2008] [Indexed: 11/28/2022]
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34
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Sturrock A, Vollbrecht T, Mir-Kasimov M, McManus M, Wilcoxen SE, Paine R. Mechanisms of suppression of alveolar epithelial cell GM-CSF expression in the setting of hyperoxic stress. Am J Physiol Lung Cell Mol Physiol 2009; 298:L446-53. [PMID: 20034963 DOI: 10.1152/ajplung.00161.2009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Pulmonary expression of granulocyte/macrophage colony-stimulating factor (GM-CSF) is critically important for normal functional maturation of alveolar macrophages. We found previously that lung GM-CSF is dramatically suppressed in mice exposed to hyperoxia. Alveolar epithelial cells (AEC) are a major source of GM-CSF in the peripheral lung, and in vivo hyperoxia resulted in greatly reduced expression of GM-CSF protein by AEC ex vivo. We now explore the mechanisms responsible for this effect, using primary cultures of murine AEC exposed to hyperoxia in vitro. Exposure of AEC to 80% oxygen/5% CO(2) for 48 h did not induce overt toxicity, but resulted in significantly decreased GM-CSF protein and mRNA expression compared with cells in normoxia. Similar effects were seen when AEC were stressed with serum deprivation, an alternative inducer of oxidative stress. The effects in AEC were opposite those in a murine lung epithelial cell line (MLE-12 cells), in which hyperoxia induced GM-CSF expression. Both hyperoxia and serum deprivation resulted in increased intracellular reactive oxygen species (ROS) in AEC. Hyperoxia and serum deprivation induced significantly accelerated turnover of GM-CSF mRNA. Treatment of AEC with catalase during oxidative stress preserved GM-CSF protein and mRNA and was associated with stabilization of GM-CSF mRNA. We conclude that hyperoxia-induced suppression of AEC GM-CSF expression is a function of ROS-induced destabilization of GM-CSF mRNA. We speculate that AEC oxidative stress results in significantly impaired pulmonary innate immune defense due to effects on local GM-CSF expression in the lung.
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Affiliation(s)
- Anne Sturrock
- Department of Veterans Affairs Medicine Center, and Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah School of Medicine, 26 North 1900 East, Salt Lake City, UT 84132, USA
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Abstract
RNA interference (RNAi) is a system of gene silencing in living cells. In RNAi, genes homologous in sequence to short interfering RNAs (siRNA) are silenced at the post-transcriptional state. Short hairpin RNAs, precursors to siRNA, can be expressed using lentivirus, allowing for RNAi in a variety of cell types. Lentiviruses, such as the Human Immunodeficiency Virus, are capable to infecting both dividing and non-dividing cells. We will describe a procedure which to package lentiviruses. Packaging refers to the preparation of competent virus from DNA vectors. Lentiviral vector production systems are based on a 'split' system, where the natural viral genome has been split into individual helper plasmid constructs. This splitting of the different viral elements into four separate vectors diminishes the risk of creating a replication-capable virus by adventitious recombination of the lentiviral genome. Here, a vector containing the shRNA of interest and three packaging vectors (p-VSVG, pRSV, pMDL) are transiently transfected into human 293 cells. After at least a 48-hour incubation period, the virus containing supernatant is harvested and concentrated. Finally, virus titer is determined by reporter (fluorescent) expression with a flow cytometer.
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Affiliation(s)
- Xiaoyin Wang
- Diabetes Center, University of California, San Francisco, USA
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36
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McManus M, Boland E, Sell S, Bowen W, Koo H, Simpson D, Bowlin G. Electrospun nanofibre fibrinogen for urinary tract tissue reconstruction. Biomed Mater 2007; 2:257-62. [DOI: 10.1088/1748-6041/2/4/008] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Sell S, Barnes C, Smith M, McClure M, Madurantakam P, Grant J, McManus M, Bowlin G. Extracellular matrix regenerated: tissue engineering via electrospun biomimetic nanofibers. POLYM INT 2007. [DOI: 10.1002/pi.2344] [Citation(s) in RCA: 169] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Harris KS, McManus M, Harfe B, Sun X. Investigating microRNA function in mammalian lung development. Dev Biol 2007. [DOI: 10.1016/j.ydbio.2007.03.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nawroth R, van Zante A, Cervantes S, McManus M, Hebrok M, Rosen SD. Extracellular sulfatases, elements of the Wnt signaling pathway, positively regulate growth and tumorigenicity of human pancreatic cancer cells. PLoS One 2007; 2:e392. [PMID: 17460759 PMCID: PMC1849966 DOI: 10.1371/journal.pone.0000392] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2007] [Accepted: 03/28/2007] [Indexed: 12/28/2022] Open
Abstract
Background Heparan sulfate proteoglycans (HSPGs) are control elements in Wnt signaling, which bind extracellularly to Wnt ligands and regulate their ability to interact with signal transduction receptors on the cell surface. Sulf-1 and Sulf-2 are novel extracellular sulfatases that act on internal glucosamine-6-sulfate (6S) modifications within HSPGs and thereby modulate HSPG interactions with various signaling molecules, including Wnt ligands. Emerging evidence indicates the importance of reactivated Wnt signaling in a number of cancers, including pancreatic adenocarcinoma. Principle Findings Both Sulf proteins were upregulated in human pancreatic adenocarcinoma tumors and were broadly expressed in human pancreatic adenocarcinoma cell lines. Expression of human extracellular sulfatases Sulf-1 and Sulf-2 enhanced Wnt signaling in a reconstituted system. Three of four pancreatic adenocarcinoma cell lines tested exhibited autocrine Wnt signaling, in that extracellular Wnt ligands were required to initiate downstream Wnt signaling. Exposure of these pancreatic adenocarcinoma cells to a catalytically inactive form of Sulf-2 or siRNA-mediated silencing of endogenous Sulf-2 inhibited both Wnt signaling and cell growth. Sulf-2 silencing in two of these lines resulted in markedly reduced tumorigenesis in immunocompromised mice. Conclusions/Significance We have identified the Sulfs as potentiators of autocrine Wnt signaling in pancreatic cancer cells and have demonstrated their contribution to the growth and tumorigenicity of these cells. Since the Sulfs are extracellular enzymes, they would be attractive targets for therapy of pancreatic cancer. Our results run counter to the prevailing view in the literature that the Sulfs are negative regulators of tumorigenesis.
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Affiliation(s)
- Roman Nawroth
- Department of Anatomy, University of California San Francisco, San Francisco, California, United States of America
| | - Annemieke van Zante
- Department of Pathology, University of California San Francisco, San Francisco, California, United States of America
| | - Sara Cervantes
- Diabetes Center, University of California San Francisco, San Francisco, California, United States of America
| | - Michael McManus
- Diabetes Center, University of California San Francisco, San Francisco, California, United States of America
| | - Matthias Hebrok
- Diabetes Center, University of California San Francisco, San Francisco, California, United States of America
- Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America
| | - Steven D. Rosen
- Department of Anatomy, University of California San Francisco, San Francisco, California, United States of America
- Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America
- * To whom correspondence should be addressed. E-mail:
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Cohen RM, Szczepanik J, McManus M, Mirza N, Putnam K, Levy J, Sunderland T. Hippocampal atrophy in the healthy is initially linear and independent of age. Neurobiol Aging 2006; 27:1385-94. [PMID: 16168525 DOI: 10.1016/j.neurobiolaging.2005.07.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Revised: 07/11/2005] [Accepted: 07/21/2005] [Indexed: 10/25/2022]
Abstract
Patients with minimal cognitive impairment (MCI) or Alzheimer's disease (AD) have smaller hippocampal volumes (HV) and increased rates of HV loss (rHVL). A 6-year study was conducted to assess rHVL in healthy aging subjects (HC) in which four MRI scans, each 2 years apart, were obtained on 26 HC with a mean age of 58.8 years when entering the study. rHVLs were linear and significantly differed among subjects, even those sharing an identical apoliporotein E genotype, ranging from .027 to .191 cc/year (S.D. = .022 cc/year), and were not affected by age or sex. rHVL, but not HV, at time of subject entry, was found to predict performance on the delayed recall measure of the Selective Reminder Task obtained 6 years after subject entry into study. Although the molecular events underlying rHVL are unclear, the significance of rHVL in subjects in their sixth and seventh decades of life for predicting age-related cognitive trajectories and whether changes in rHVLs foreshadow the development of MCI are the subject of ongoing study.
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Affiliation(s)
- Robert M Cohen
- Geriatric Psychiatry Branch, National Institute of Mental Health, National Institutes of Health, Clinical Research Center 2-5362, MSC 1274, 10 Center Drive, Bethesda MD 20892-1274, USA.
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Harper RW, Xu C, McManus M, Heidersbach A, Eiserich JP. Duox2 exhibits potent heme peroxidase activity in human respiratory tract epithelium. FEBS Lett 2006; 580:5150-4. [PMID: 16970942 DOI: 10.1016/j.febslet.2006.08.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 07/25/2006] [Accepted: 08/07/2006] [Indexed: 11/29/2022]
Abstract
The dual oxidase isozymes Duox1 and Duox2 exhibit functional NADPH:O(2) oxidoreductase activity in thyroid and respiratory tract cells and are thought to be essential for H(2)O(2) generation in these tissues. However, it is not universally accepted that the heme peroxidase domains of the Duox isozymes are functional. To address this question, we modulated Duox2 expression in human tracheobronchial epithelial (TBE) cell culture systems and quantified peroxidase activity. We discovered that interferon-gamma (IFN-gamma) induced robust peroxidase activity in TBE cells that paralleled Duox2 expression. IFN-gamma-induced peroxidase activity was abolished in the presence of sodium azide, which implicated the activation of a heme peroxidase. IFN-gamma-induced peroxidase activity was abolished in TBE cell lines expressing anti-Duox2 short hairpin RNA transcripts. Together, these data unequivocally demonstrated that Duox2 contains a functional heme peroxidase in intact respiratory tract epithelium.
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Affiliation(s)
- Richart W Harper
- Department of Internal Medicine, Division of Pulmonary/Critical Care Medicine, School of Medicine, University of California, 451 East Health Sciences Road, Room 6521, Davis, 95616, USA.
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McManus M. Discourses of indiscipline: an informal Hobbesian riposte to Cate Watson. Emotional and Behavioural Difficulties 2006. [DOI: 10.1080/13632750500392914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ventura A, Meissner A, Dillon CP, McManus M, Sharp PA, Van Parijs L, Jaenisch R, Jacks T. Cre-lox-regulated conditional RNA interference from transgenes. Proc Natl Acad Sci U S A 2004; 101:10380-5. [PMID: 15240889 PMCID: PMC478580 DOI: 10.1073/pnas.0403954101] [Citation(s) in RCA: 515] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We have generated two lentiviral vectors for conditional, Cre-lox-regulated, RNA interference. One vector allows for conditional activation, whereas the other permits conditional inactivation of short hairpin RNA (shRNA) expression. The former is based on a strategy in which the mouse U6 promoter has been modified by including a hybrid between a LoxP site and a TATA box. The ability to efficiently control shRNA expression by using these vectors was shown in cell-based experiments by knocking down p53, nucleophosmin and DNA methyltransferase 1. We also demonstrate the usefulness of this approach to achieve conditional, tissue-specific RNA interference in Cre-expressing transgenic mice. Combined with the growing array of Cre expression strategies, these vectors allow spatial and temporal control of shRNA expression in vivo and should facilitate functional genetic analysis in mammals.
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Affiliation(s)
- Andrea Ventura
- Department of Biology, Center for Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Grodzki W, McManus M, Knízek M, Meshkova V, Mihalciuc V, Novotny J, Turcani M, Slobodyan Y. Occurrence of spruce bark beetles in forest stands at different levels of air pollution stress. Environ Pollut 2004; 130:73-83. [PMID: 15046842 DOI: 10.1016/j.envpol.2003.10.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2003] [Accepted: 10/17/2003] [Indexed: 05/24/2023]
Abstract
The spruce bark beetle, Ips typographus (L.) is the most serious pest of mature spruce stands, mainly Norway spruce, Picea abies (L.) Karst. throughout Eurasia. A complex of weather-related events and other environmental stresses are reported to predispose spruce stands to bark beetle attack and subsequent tree mortality; however the possible role of industrial pollution as a predisposing factor to attack by this species is poorly understood. The abundance and dynamics of I. typographus populations was evaluated in 60-80 year old Norway spruce stands occurring on 10 x 50 ha sites in five countries within the Carpathian range that were selected in proximity to established ozone measurement sites. Data were recorded on several parameters including the volume of infested trees, captures of adult beetles in pheromone traps, number of attacks, and the presence and relative abundance of associated bark beetle species. In several cases, stands adjacent to sites with higher ozone values were associated with higher bark beetle populations. The volume of sanitary cuttings, a reflection of tree mortality, and the mean daily capture of beetles in pheromone traps were significantly higher at sites where the O(3) level was higher. However, the mean infestation density on trees was higher in plots associated with lower O(3) levels. Captures of beetles in pheromone traps and infestation densities were higher in the zone above 800 m. However, none of the relationships was conclusive, suggesting that spruce bark beetle dynamics are driven by a complex interaction of biotic and abiotic factors and not by a single parameter such as air pollution.
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Affiliation(s)
- Wojciech Grodzki
- Forest Research Institute, ul. Fredry 39, 30-605 Cracow, Poland.
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Bytnerowicz A, Badea O, Barbu I, Fleischer P, Fraczek W, Gancz V, Godzik B, Grodzińska K, Grodzki W, Karnosky D, Koren M, Krywult M, Krzan Z, Longauer R, Mankovska B, Manning WJ, McManus M, Musselman RC, Novotny J, Popescu F, Postelnicu D, Prus-Głowacki W, Skawiński P, Skiba S, Szaro R, Tamas S, Vasile C. New international long-term ecological research on air pollution effects on the Carpathian Mountain forests, Central Europe. Environ Int 2003; 29:367-376. [PMID: 12676229 DOI: 10.1016/s0160-4120(02)00172-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An international cooperative project on distribution of ozone in the Carpathian Mountains, Central Europe was conducted from 1997 to 1999. Results of that project indicated that in large parts of the Carpathian Mountains, concentrations of ozone were elevated and potentially phytotoxic to forest vegetation. That study led to the establishment of new long-term studies on ecological changes in forests and other ecosystems caused by air pollution in the Retezat Mountains, Southern Carpathians, Romania and in the Tatra Mountains, Western Carpathians on the Polish-Slovak border. Both of these important mountain ranges have the status of national parks and are Man & the Biosphere Reserves. In the Retezat Mountains, the primary research objective was to evaluate how air pollution may affect forest health and biodiversity. The main research objective in the Tatra Mountains was to evaluate responses of natural and managed Norway spruce forests to air pollution and other stresses. Ambient concentrations of ozone (O(3)), sulfur dioxide (SO(2)), nitrogen oxides (NO(x)) as well as forest health and biodiversity changes were monitored on densely distributed research sites. Initial monitoring of pollutants indicated low levels of O(3), SO(2), and NO(x) in the Retezat Mountains, while elevated levels of O(3) and high deposition of atmospheric sulfur (S) and nitrogen (N) have characterized the Tatra Mountains. In the Retezat Mountains, air pollution seems to have little effect on forest health; however, there was concern that over a long time, even low levels of pollution may affect biodiversity of this important ecosystem. In contrast, severe decline of Norway spruce has been observed in the Tatra Mountains. Although bark beetle seems to be the immediate cause of that decline, long-term elevated levels of atmospheric N and S depositions and elevated O(3) could predispose trees to insect attacks and other stresses. European and US scientists studied pollution deposition, soil and plant chemistry, O(3)-sensitive plant species, forest insects, and genetic changes in the Retezat and Tatra Mountains. Results of these investigations are presented in a GIS format to allow for a better understanding of the changes and the recommendations for effective management in these two areas.
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Affiliation(s)
- Andrzej Bytnerowicz
- USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Drive, 92507, Riverside, CA, USA.
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Abstract
Centrosome duplication and separation are linked inextricably to certain cell cycle events, in particular activation of cyclin-dependent kinases (CDKs). However, relatively few CDK targets driving these events have been uncovered. Here, we have performed a screen for CDK substrates and have isolated a target, CP110, which is phosphorylated by CDKs in vitro and in vivo. Human CP110 localizes to centrosomes. Its expression is strongly induced at the G1-to-S phase transition, coincident with the initiation of centrosome duplication. RNAi-mediated depletion of CP110 indicates that this protein plays an essential role in centrosome duplication. Long-term disruption of CP110 phosphorylation leads to unscheduled centrosome separation and overt polyploidy. Our data suggest that CP110 is a physiological centrosomal CDK target that promotes centrosome duplication, and its deregulation may contribute to genomic instability.
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Affiliation(s)
- Zhihong Chen
- Department of Molecular and Cellular Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA
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McManus M. Emergency department overcrowding in Massachusetts: making room in our hospitals. Issue Brief (Mass Health Policy Forum) 2001:1-38. [PMID: 12776710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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Abstract
AIM Drawing upon the selected findings from a multidisciplinary study that sought to explore the meaning of master's level performance in health professional practice, the characteristics which nurse educators attributed to the practice of master's level nursing graduates are analysed to reveal underlying discourses. BACKGROUND Although master's level programmes for nurses have been available in the United Kingdom (UK) for the past three decades and current heath policy directives link master's level qualifications with senior clinical nursing roles, the contribution that master's level education might make to the future direction of nursing is unclear. RESEARCH DESIGN AND METHODS In-depth interviews were undertaken with a purposive sample of 18 nurse lecturers drawn from eight universities in the UK who were responsible for master's level programmes in nursing. The interview agenda explored participants' perspectives of the characteristics of master's level performance. Drawing upon the methodology of discourse analysis, interview transcripts were interpreted in such a way as to show the implicit discourses underlying the participants' claims regarding their graduate's attributes of professional practice. FINDINGS The characteristics attributed to master's graduates were categorized under (a) cognitive competencies, (b) practice-related competencies, (c) research orientation and (d) personal dynamism. However, these attributions are not empirical generalizations, developed inductively. Rather, they draw on socially available discourses regarding the future direction of the profession. CONCLUSION The nurse educators drew on the following socially available discourses: (a) a discourse in which nursing is construed as involving great competence in practice, but without radicality of thought. Associated with this is a pervasive rhetoric of pragmatism; (b) a discourse of interprofessional practice in which nursing has a role of leadership. This is associated with a view of the location and power of nursing within the structure of the National Health Service and (c) notably lacking were discourses of care-giving, and of academic/intellectual aspiration. The implications of these discourses for the future direction of nursing are considered.
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Affiliation(s)
- P D Ashworth
- Professor of Educational Research, Learning and Teaching Research Institute, Sheffield Hallam University, Sheffield, UK
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Pilarska D, Linde A, Goertz D, McManus M, Solter L, Bochev N, Rajkova M. First report on the distribution of microsporidian infections of browntail moth (Euproctis chrysorrhoea L.) populations in Bulgaria*. ACTA ACUST UNITED AC 2001. [DOI: 10.1111/j.1493-0280.2001.01007.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
1. Psychiatric patients in acute and long-term care settings may be at high risk for dysphagia and its sequelae. 2. The prevalence of dysphagia in the psychiatric population is higher than commonly believed. 3. Routine screening is essential for the safety and management of psychiatric patients at risk for dysphagia.
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Affiliation(s)
- M McManus
- North Shore-Long Island Jewish Health System, Hillside Hospital, Glen Oaks, New York, 11004 USA
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