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Tyler J Loftus, Juan C Mira, Elizabeth S Miller, Kolenkode B Kannan, Jessica M Plazas, Daniel Delitto, Julie A Stortz, Jennifer E Hagen, Hari K Parvataneni, Kalia K Sadasivan, Scott C Brakenridge, Frederick A Moore, Lyle L Moldawer, Philip A Efron, Alicia M Mohr
RATIONALE: The pathophysiology of persistent injury-associated anemia is incompletely understood, and human data are sparse. OBJECTIVE: To translate pre-clinical findings by characterizing injury-associated anemia among critically ill trauma patients. This study compared elective hip repair patients with an acute stress response to severely injured trauma patients with a prolonged stress response and evaluated the bone marrow response to anemia. METHODS: A translational prospective observational cohort study comparing severely injured, blunt trauma patients who had operative fixation of a hip or femur fracture (n=17) with elective hip repair patients (n=22) and healthy donors (n=8)...
May 16, 2018: American Journal of Respiratory and Critical Care Medicine
Hannah L Norris, Justin Friedman, Ziqiang Chen, Sumant Puri, Gregory Wilding, Mira Edgerton
Background : Little is known about the normal range of metal levels in unstimulated saliva, nor whether these might impact Candida carriage in healthy individuals. Both are important in determining which populations are at risk for candidiasis, as the availability of metal ions can influence the growth and pathogenesis of Candida albicans . Objective : We quantified salivary metals of healthy individuals to determine the correlation with C. albicans oral colonization. Design : Unstimulated whole saliva was collected from healthy adults and plated to determine fungal carriage, and metal content was measured using ICP-mass spectrometry (ICP-MS)...
2018: Journal of Oral Microbiology
Tyler J Loftus, Kolenkode B Kannan, Christy S Carter, Jessica M Plazas, Juan C Mira, Scott C Brakenridge, Christiaan Leeuwenburgh, Philip A Efron, Alicia M Mohr
BACKGROUND: Hypercatecholaminemia and bone marrow dysfunction have been implicated in the pathophysiology of persistent injury-associated anemia. The elderly may be more vulnerable to bone marrow dysfunction due to high basal and peak catecholamine levels and impaired hematopoietic progenitor growth. We hypothesized that aging would adversely affect persistent injury-associated anemia. METHODS: Male Sprague-Dawley rats aged 8 to 9 weeks and F344-BN rats aged 25 months were randomized to naive controls, lung contusion plus hemorrhagic shock (LCHS), and LCHS plus daily chronic restraint stress (LCHS/CS)...
March 2018: Journal of Trauma and Acute Care Surgery
Shoshana Revel-Vilk, Mira Naamad
Red blood cell (RBC) transfusions save lives and improve health; however, unnecessary transfusion practice exposes patients to immediate and long-term negative consequences. Indirect consequences of unnecessary transfusions are the reduced availability of RBC units for patients who are in need. Accumulating evidence shows that restricting RBC transfusions improves outcomes and current guidelines suggest limiting RBC transfusion to the minimum number of units required to relieve symptoms of anemia or to return the patient to a safe hemoglobin range (7-8 g/dl in stable, non-cardiac inpatients)...
January 15, 2018: Israel Journal of Health Policy Research
Anna C Santamans, Rafael Boluda, Antonio Picazo, Carlos Gil, Joaquín Ramos-Miras, Pablo Tejedo, Luis R Pertierra, Javier Benayas, Antonio Camacho
The main soil physical-chemical features, the concentrations of a set of pollutants, and the soil microbiota linked to penguin rookeries have been studied in 10 selected sites located at the South Shetland Islands and the Antarctic Peninsula (Maritime Antarctica). This study aims to test the hypothesis that biotransport by penguins increases the concentration of pollutants, especially heavy metals, in Antarctic soils, and alters its microbiota. Our results show that penguins do transport certain chemical elements and thus cause accumulation in land areas through their excreta...
2017: PloS One
Aaron R Prosnitz, Jane Leopold, Mira Irons, Kathy Jenkins, Amy E Roberts
OBJECTIVE: To describe a group of children with co-incident pulmonary vein stenosis and Smith-Lemli-Opitz syndrome and to generate hypotheses as to the shared pathogenesis of these disorders. DESIGN: Retrospective case series. PATIENTS: Five subjects in a pulmonary vein stenosis cohort of 170 subjects were diagnosed with Smith-Lemli-Opitz syndrome soon after birth. RESULTS: All five cases were diagnosed with Smith-Lemli-Opitz syndrome within 6 weeks of life, with no family history of either disorder...
July 2017: Congenital Heart Disease
Young-Woo Kim, Jae-Moon Bae, Young-Kyu Park, Han-Kwang Yang, Wansik Yu, Jeong Hwan Yook, Sung Hoon Noh, Mira Han, Keun Won Ryu, Tae Sung Sohn, Hyuk-Joon Lee, Oh Kyoung Kwon, Seung Yeob Ryu, Jun-Ho Lee, Sung Kim, Hong Man Yoon, Bang Wool Eom, Min-Gew Choi, Beom Su Kim, Oh Jeong, Yun-Suhk Suh, Moon-Won Yoo, In Seob Lee, Mi Ran Jung, Ji Yeong An, Hyoung-Il Kim, Youngsook Kim, Hannah Yang, Byung-Ho Nam
Importance: Acute isovolemic anemia occurs when blood loss is replaced with fluid. It is often observed after surgery and negatively influences short-term and long-term outcomes. Objective: To evaluate the efficacy and safety of ferric carboxymaltose to treat acute isovolemic anemia following gastrectomy. Design, Setting, and Participants: The FAIRY trial was a patient-blinded, randomized, phase 3, placebo-controlled, 12-week study conducted between February 4, 2013, and December 15, 2015, in 7 centers across the Republic of Korea...
May 23, 2017: JAMA: the Journal of the American Medical Association
Bishweshwar Pant, Mira Park, Joong Hee Lee, Hak-Yong Kim, Soo-Jin Park
Development of photocatalytic materials with magnetic and antibacterial properties is highly desirable in wastewater treatment. In this study, a novel magnetically separable silver-iron oxide nanoparticles (Ag-Fe3O4 NPs) decorated graphitic carbon nitride (g-C3N4) nanocomposite via hydrothermal treatment has been presented for the multifaceted applications. The physiochemical properties of the as-synthesized ternary nanocomposite were characterized by the field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL) studies...
June 15, 2017: Journal of Colloid and Interface Science
Chiara Baldacchini, Ana Castanheiro, Nairuhi Maghakyan, Gregorio Sgrigna, Jolien Verhelst, Rocío Alonso, Jorge H Amorim, Patrick Bellan, Danijela Đunisijević Bojović, Jürgen Breuste, Oliver Bühler, Ilie C Cântar, Paloma Cariñanos, Giulia Carriero, Galina Churkina, Lucian Dinca, Raffaela Esposito, Stanisław W Gawroński, Maren Kern, Didier Le Thiec, Marco Moretti, Tine Ningal, Eleni C Rantzoudi, Iztok Sinjur, Biljana Stojanova, Mira Aničić Urošević, Violeta Velikova, Ivana Živojinović, Lilit Sahakyan, Carlo Calfapietra, Roeland Samson
Particulate matter (PM) deposited on Platanus acerifolia tree leaves has been sampled in the urban areas of 28 European cities, over 20 countries, with the aim of testing leaf deposited particles as indicator of atmospheric PM concentration and composition. Leaves have been collected close to streets characterized by heavy traffic and within urban parks. Leaf surface density, dimensions, and elemental composition of leaf deposited particles have been compared with leaf magnetic content, and discussed in connection with air quality data...
February 7, 2017: Environmental Science & Technology
Mira K Desai, Jigar R Panchal, Samdih Shah, Geetha Iyer
OBJECTIVES: To find out the impact of teaching clinical pharmacology and rational therapeutics (CPT) to medical undergraduates (UGs) and interns. MATERIALS AND METHODS: This cross-sectional, prospective study was conducted on three UGs batches and interns using two pretested validated structured questionnaires, modified from the work of Tobaiqy et al. The study was approved by the Institutional Ethics Committee. ANOVA and Chi-square test were used for statistical analysis...
July 2016: International Journal of Applied and Basic Medical Research
Sophie Mathieu, Cheickna Cissé, Sylvia Vitale, Aynur Ahmadova, Mélissa Degardin, Julien Pérard, Pierre Colas, Roger Miras, Didier Boturyn, Jacques Covès, Serge Crouzy, Isabelle Michaud-Soret
FUR (Ferric Uptake Regulator) protein is a global transcriptional regulator that senses iron status and controls the expression of genes involved in iron homeostasis, virulence, and oxidative stress. Ubiquitous in Gram-negative bacteria and absent in eukaryotes, FUR is an attractive antivirulence target since the inactivation of the fur gene in various pathogens attenuates their virulence. The characterization of 13-aa-long anti-FUR linear peptides derived from the variable part of the anti-FUR peptide aptamers, that were previously shown to decrease pathogenic E...
September 16, 2016: ACS Chemical Biology
Richard E Hawkins, Mira Bjelotomich Irons, Catherine M Welcher, Mellie Villahermosa Pouwels, Eric S Holmboe, Earl J Reisdorff, Joshua M Cohen, Susan Dentzer, David G Nichols, Cynthia A Lien, Thomas D Horn, R Barrett Noone, Rebecca S Lipner, Kevin W Eva, John J Norcini, Lois Margaret Nora, Jeffrey P Gold
This article describes the presentations and discussions at a conference co-convened by the Council on Medical Education of the American Medical Association (AMA) and by the American Board of Medical Specialties (ABMS). The conference focused on the ABMS Maintenance of Certification (MOC) Part III Examination. This article, reflecting the conference agenda, covers the value of and evidence supporting the examination, as well as concerns about the cost of the examination, and-given the current format-its relevance...
November 2016: Academic Medicine: Journal of the Association of American Medical Colleges
Simon Ipcho, Thomas Sundelin, Gitte Erbs, H Corby Kistler, Mari-Anne Newman, Stefan Olsson
Plants and animals detect bacterial presence through Microbe-Associated Molecular Patterns (MAMPs) which induce an innate immune response. The field of fungal-bacterial interaction at the molecular level is still in its infancy and little is known about MAMPs and their detection by fungi. Exposing Fusarium graminearum to bacterial MAMPs led to increased fungal membrane hyperpolarization, a putative defense response, and a range of transcriptional responses. The fungus reacted with a different transcript profile to each of the three tested MAMPs, although a core set of genes related to energy generation, transport, amino acid production, secondary metabolism, and especially iron uptake were detected for all three...
June 1, 2016: G3: Genes—Genomes—Genetics
Beata A Zasonska, Aurelia Líškova, Miroslava Kuricova, Jana Tulinska, Ognen Pop-Georgievski, Fedor Čiampor, Ivo Vavra, Maria Dušinska, Silvia Ilavska, Mira Horvathova, Daniel Horák
AIM: To determine cytotoxicity and effect of silica-coated magnetic nanoparticles (MNPs) on immune response, in particular lymphocyte proliferative activity, phagocytic activity, and leukocyte respiratory burst and in vitro production of interleukin-6 (IL-6) and 8 (IL-8), interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), and granulocyte macrophage colony stimulating factor (GM-CSF). METHODS: Maghemite was prepared by coprecipitation of iron salts with ammonia, oxidation with NaOCl and modified by tetramethyl orthosilicate and aminosilanes...
April 23, 2016: Croatian Medical Journal
Julien Pérard, Jacques Covès, Mathieu Castellan, Charles Solard, Myriam Savard, Roger Miras, Sandra Galop, Luca Signor, Serge Crouzy, Isabelle Michaud-Soret, Eve de Rosny
The ferric uptake regulator (Fur) belongs to the family of the DNA-binding metal-responsive transcriptional regulators. Fur is a global regulator found in all proteobacteria. It controls the transcription of a wide variety of genes involved in iron metabolism but also in oxidative stress or virulence factor synthesis. When bound to ferrous iron, Fur can bind to specific DNA sequences, called Fur boxes. This binding triggers the repression or the activation of gene expression, depending on the regulated genes...
March 15, 2016: Biochemistry
Lois Margaret Nora, Mellie Villahermosa Pouwels, Mira Irons
The American Board of Medical Specialties board certification has transformed into a career-long process of learning, assessment, and performance improvement through its Program for Maintenance of Certification (MOC). Medical educators across many medical professional organizations, specialty societies, and other institutions have played important roles in shaping MOC and tailoring its overarching framework to the needs of different specialties. This Commentary addresses potential barriers to engagement in work related to MOC for medical school (MS) and academic health center (AHC) educators and identifies reasons for, and ways to accomplish, greater involvement in this work...
January 2016: Academic Medicine: Journal of the Association of American Medical Colleges
Pedro Belda-Ferre, James Williamson, Áurea Simón-Soro, Alejandro Artacho, Ole N Jensen, Alex Mira
Tooth decay is considered the most prevalent human disease worldwide. We present the first metaproteomic study of the oral biofilm, using different mass spectrometry approaches that have allowed us to quantify individual peptides in healthy and caries-bearing individuals. A total of 7771 bacterial and 853 human proteins were identified in 17 individuals, which provide the first available protein repertoire of human dental plaque. Actinomyces and Coryneybacterium represent a large proportion of the protein activity followed by Rothia and Streptococcus...
October 2015: Proteomics
Suzanne Estaphan, Hassan Eissa, Samah Elattar, Laila Rashed, Mira Farouk
Myoglobinuric acute renal failure is the most important life threatening complication of rhabdomyolysis. Iron, free radicals, nitric oxide and cytochrome p450 are involved in the pathogenesis of mARF. The aim of this study is to compare the effect of cimetidine, l-carnitine and both agents together on mARF in rats. Forty rats were divided into 5 groups; group I: control rats, group II: myoglobinuric ARF rats, group III: mARF rats received l-carnitine (200mg/kg, i.p.), group IV: mARF rats received cimetidine (150mg/kg i...
July 2015: Injury
Paul M Ledger, Yannick Miras, Matthieu Poux, Pierre Yves Milcent
Early human societies and their interactions with the natural world have been extensively explored in palaeoenvironmental studies across Central and Western Europe. Yet, despite an extensive body of scholarship, there is little consideration of the environmental impacts of proto-historic urbanisation. Typically palaeoenvironmental studies of Bronze and Iron Age societies discuss human impact in terms of woodland clearance, landscape openness and evidence for agriculture. Although these features are clearly key indicators of human settlement, and characterise Neolithic and early to Middle Bronze Age impacts at Corent, they do not appear to represent defining features of a protohistoric urban environment...
2015: PloS One
Mira B Irons, Lois M Nora
New England Journal of Medicine, Volume 372, Issue 2, Page 104-106, January 2015.
January 8, 2015: New England Journal of Medicine
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