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https://www.readbyqxmd.com/read/29222266/impact-of-bone-disease-and-pain-in-thalassemia
#1
REVIEW
Antonio Piga
Conventional treatment of thalassemia, namely regular blood transfusion and iron chelation, improves perspectives and quality of life; however, successful treatment leads to more time in which long-term complications such as bone disease can develop. Thalassemia bone disease (TBD) is unique: all aspects, from bone anatomy and bone quality to mineral density, may be affected, with important morbidity including osteoporosis, fractures, spinal deformities, nerve compression, and pain. Clinical presentations include growth impairment, rickets-like features, back pain, spinal deformities, any sign of nerve compression, severe osteoporosis, and fragility fractures...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29220376/c5a-and-c5ar-are-elevated-in-joints-of-rheumatoid-and-psoriatic-arthritis-patients-and-c5ar-blockade-attenuates-leukocyte-migration-to-synovial-fluid
#2
Lars Hornum, Anker Jon Hansen, Ditte Tornehave, Marianne Scheel Fjording, Paula Colmenero, Inger Falbe Wätjen, Niels Henrik Søe Nielsen, Henning Bliddal, Else Marie Bartels
Complement activation correlates to rheumatoid arthritis disease activity, and increased amounts of the complement split product C5a is observed in synovial fluids from rheumatoid arthritis patients. Blockade of C5a or its receptor (C5aR) is efficacious in several arthritis models. The aim of this study was to investigate the role of C5a and C5aR in human rheumatoid arthritis and psoriatic arthritis-both with respect to expression and function. Synovial fluid, blood and synovial samples were obtained from rheumatoid arthritis, psoriatic arthritis and osteoarthritis patients as a less inflammatory arthritis type, and blood from healthy subjects...
2017: PloS One
https://www.readbyqxmd.com/read/29218272/blood-based-biomarkers-in-lung-cancer-prognosis-and-treatment-decisions
#3
REVIEW
Meng Xu-Welliver, David P Carbone
Despite recent advances, non-small cell lung cancer (NSCLC) remains a devastating disease with overall poor prognosis. Major contributing factors include obstacles to diagnosing the disease early in its course during the asymptomatic stage as well as diversity and complexity of its biology underlying tumorigenesis and tumor progression. Advances in molecularly targeted therapies which drives the development of personalized cancer care require precise and comprehensive understanding of tumor biology, not only at the time of diagnosis but also during treatment course and surveillance...
December 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/29218050/heme-drives-oxidative-stress-associated-cell-death-in-human-neutrophils-infected-with-leishmania-infantum
#4
Graziele Quintela-Carvalho, Nívea F Luz, Fabiana S Celes, Dalila L Zanette, Daniela Andrade, Diego Menezes, Natália M Tavares, Claudia I Brodskyn, Deboraci B Prates, Marilda S Gonçalves, Camila I de Oliveira, Roque P Almeida, Marcelo T Bozza, Bruno B Andrade, Valeria M Borges
Free heme is an inflammatory molecule capable of inducing migration and activation of neutrophils. Here, we examine the heme-driven oxidative stress-associated cell death mechanisms in human neutrophils infected with Leishmania infantum, an etiologic agent of visceral leishmaniasis (VL). We first performed exploratory analyses in a population of well characterized treatment-naïve VL patients as well as uninfected controls, who were part of previously reported studies. We noted a positive correlation between serum concentrations of heme with heme oxygenase-1 (HO-1) and lactate deydrogenase, as well as, a negative correlation between heme values and peripheral blood neutrophils counts...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29215365/physiologic-evaluation-of-ventilation-perfusion-mismatch-and-respiratory-mechanics-at-different-positive-end-expiratory-pressure-in-patients-undergoing-protective-one-lung-ventilation
#5
Savino Spadaro, Salvatore Grasso, Dan Stieper Karbing, Alberto Fogagnolo, Marco Contoli, Giacomo Bollini, Riccardo Ragazzi, Gilda Cinnella, Marco Verri, Narciso Giorgio Cavallesco, Stephen Edward Rees, Carlo Alberto Volta
BACKGROUND: Arterial oxygenation is often impaired during one-lung ventilation, due to both pulmonary shunt and atelectasis. The use of low tidal volume (VT) (5 ml/kg predicted body weight) in the context of a lung-protective approach exacerbates atelectasis. This study sought to determine the combined physiologic effects of positive end-expiratory pressure and low VT during one-lung ventilation. METHODS: Data from 41 patients studied during general anesthesia for thoracic surgery were collected and analyzed...
December 6, 2017: Anesthesiology
https://www.readbyqxmd.com/read/29203772/integrative-transcriptomic-analysis-reveals-key-drivers-of-acute-peanut-allergic-reactions
#6
C T Watson, A T Cohain, R S Griffin, Y Chun, A Grishin, H Hacyznska, G E Hoffman, N D Beckmann, H Shah, P Dawson, A Henning, R Wood, A W Burks, S M Jones, D Y M Leung, S Sicherer, H A Sampson, A J Sharp, E E Schadt, S Bunyavanich
Mechanisms driving acute food allergic reactions have not been fully characterized. We profile the dynamic transcriptome of acute peanut allergic reactions using serial peripheral blood samples obtained from 19 children before, during, and after randomized, double-blind, placebo-controlled oral challenges to peanut. We identify genes with changes in expression triggered by peanut, but not placebo, during acute peanut allergic reactions. Network analysis reveals that these genes comprise coexpression networks for acute-phase response and pro-inflammatory processes...
December 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/29203026/perceptions-of-alcohol-impaired-driving-and-the-blood-alcohol-concentration-standard-in-the-united-states
#7
David W Eby, Lisa J Molnar, Lidia P Kostyniuk, Renée M St Louis, Nicole Zanier, James M Lepkowski, Gwen Bergen
INTRODUCTION: Although the number of alcohol-impaired driving (AID) fatalities has declined over the past several years, AID continues to be a serious public health problem. The purpose of this effort was to gain a better understanding of the U.S. driving population's perceptions and thoughts about the impacts of lowering the blood alcohol concentration (BAC) driving standard below.08% on AID, health, and other outcomes. METHODS: A questionnaire was administered to a nationally representative sample of licensed drivers in the U...
December 2017: Journal of Safety Research
https://www.readbyqxmd.com/read/29197242/alcohol-and-illicit-drugs-in-drivers-involved-in-road-traffic-crashes-in-the-milan-area-a-comparison-with-normal-traffic-reveals-the-possible-inadequacy-of-current-cut-off-limits
#8
Davide Ferrari, Monica Manca, Giuseppe Banfi, Massimo Locatelli
BACKGROUND: Driving under the influence of alcohol and/or illicit drugs in Italy is regulated by the articles 186 and 187 of the National Street Code. Epidemiological studies on drivers involved in road traffic crashes (RTC) provide useful information about the use/abuse of these substances in the general population. Comparison with case control studies may reveal important information like the cut-off limits adequacy. METHODS: Data from 1587 blood tests for alcohol and 1258 blood tests for illicit drugs on drivers involved in RTC around Milan between 2012 and 2016, were analyzed and compared with a published random survey (DRUID) from the European Community...
November 22, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29197040/phenotypic-plasticity-and-climate-change-can-polar-bears-respond-to-longer-arctic-summers-with-an-adaptive-fast
#9
John P Whiteman, Henry J Harlow, George M Durner, Eric V Regehr, Steven C Amstrup, Merav Ben-David
Plasticity in the physiological and behavioural responses of animals to prolonged food shortages may determine the persistence of species under climate warming. This is particularly applicable for species that can "adaptively fast" by conserving protein to protect organ function while catabolizing endogenous tissues. Some Ursids, including polar bears (Ursus maritimus), adaptively fast during winter hibernation-and it has been suggested that polar bears also employ this strategy during summer. We captured 57 adult female polar bears in the Southern Beaufort Sea (SBS) during summer 2008 and 2009 and measured blood variables that indicate feeding, regular fasting, and adaptive fasting...
December 1, 2017: Oecologia
https://www.readbyqxmd.com/read/29194632/endothelial-piezo1-channels-as-sensors-of-exercise
#10
David J Beech
Piezo1 channels are newly discovered ion channels which have come to the fore as players in endothelial biology. They have a key role as sensors of shear stress, a frictional force which arises in vascular biology because of blood flow. Endothelial Piezo1 channels are critical in murine embryonic development, just after the heart starts to beat and drive blood into the nascent endothelial network. In contrast they are not critical at the adult stage but they are important for performance in whole body physical activity where they have a vascular bed-specific effect to cause mesenteric resistance artery vasoconstriction, achieved through opposition to the vasodilatory mechanism of endothelium-derived hyperpolarization...
December 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29190638/linking-gene-dynamics-to-vascular-hyperplasia-toward-a-predictive-model-of-vein-graft-adaptation
#11
Stefano Casarin, Scott A Berceli, Marc Garbey
Reductionist approaches, where individual pieces of a process are examined in isolation, have been the mainstay of biomedical research. While these methods are effective in highly compartmentalized systems, they fail to account for the inherent plasticity and non-linearity within the signaling structure. In the current manuscript, we present the computational architecture for tracking an acute perturbation in a biologic system through a multiscale model that links gene dynamics to cell kinetics, with the overall goal of predicting tissue adaptation...
2017: PloS One
https://www.readbyqxmd.com/read/29188751/go-with-the-flow-gef-h1-mediated-shear-stress-mechanotransduction-in-neutrophils
#12
Noah Fine, Ioannis D Dimitriou, Robert Rottapel
Neutrophils in circulation experience significant shear forces due to blood flow when they tether to the vascular endothelium. Biochemical and biophysical responses of neutrophils to the physical force of flowing blood modulate their behavior and promote tissue recruitment under pro-inflammatory conditions. Neutrophil mechanotransduction responses occur through mechanisms that are not yet fully understood. In our recent work, we showed that GEF-H1, a RhoA specific guanine nucleotide exchange factor (GEF), is required to maintain neutrophil motility and migration in response to shear stress...
November 30, 2017: Small GTPases
https://www.readbyqxmd.com/read/29188583/infusions-of-epstein-barr-virus-specific-cytotoxic-t-lymphocytes-as-post-remission-therapy-in-high-risk-post-transplant-lymphoproliferative-disorder-patients-report-of-two-cases
#13
Nayoun Kim, Hyun-Jung Sohn, Joo Hyun Oh, Young-Woo Jeon, Hyun-Joo Lee, Hyun-Il Cho, Byung Ha Chung, Chul-Woo Yang, Tai-Gyu Kim, Seok-Goo Cho
Conventional therapeutic approaches to post-transplant lymphoproliferative disorder (PTLD) occurring after solid-organ transplantation have shown only limited success in achieving durable response. Key factors driving the pathogenesis of PTLD include Epstein-Barr virus (EBV) reactivation and impaired immune surveillance due to prolonged immune suppression. Thus, EBV-specific cytotoxic T lymphocytes (EBV-CTLs) have emerged as an alternative therapeutic approach for the treatment of EBV-associated PTLD by enhancing EBV-specific immunity...
November 29, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29187589/stat5b-a-differential-regulator-of-the-life-and-death-of-cd4-effector-memory-t-cells
#14
Sonia S Majri, Jill M Fritz, Alejandro V Villarino, Lixin Zheng, Chrysi Kanellopoulou, Benjamin Chaigne-Delalande, Juha Grönholm, Julie E Niemela, Behdad Afzali, Matthew Biancalana, Stefania Pittaluga, Ashleigh Sun, José L Cohen, Steven M Holland, John J O'Shea, Gulbu Uzel, Michael J Lenardo
Understanding the control of Ag restimulation-induced T cell death (RICD), especially in cancer immunotherapy, where highly proliferating T cells will encounter potentially large amounts of tumor Ags, is important now more than ever. It has been known that growth cytokines make T cells susceptible to RICD, but the precise molecular mediators that govern this in T cell subsets is unknown until now. STAT proteins are a family of transcription factors that regulate gene expression programs underlying key immunological processes...
November 29, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29187176/frequency-of-dea-1-antigen-in-1037-mongrel-and-purebreed-dogs-in-italy
#15
E Carli, A Carminato, S Ravagnan, K Capello, M T Antognoni, A Miglio, T Furlanello, D Proverbio, E Spada, A Stefani, F Mutinelli, M Vascellari
BACKGROUND: The prevalence of dog erythrocyte antigen (DEA 1) in canine population is approximately 40-60%. Often data are limited to a small number of breeds and/or dogs. The aims of this study were to evaluate frequency of DEA 1 in a large population of purebred and mongrel dogs including Italian native breeds and to recognize a possible association between DEA 1 and breed, sex, and genetic and phenotypical/functional classifications of breeds. Frequencies of DEA 1 blood group collected from screened/enrolled blood donors and from healthy and sick dogs were retrospectively evaluated...
November 29, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29185214/the-significance-of-preexisting-medical-conditions-alcohol-drug-use-and-suicidal-behavior-for-drivers-in-fatal-motor-vehicle-crashes-a-retrospective-autopsy-study
#16
Jan Mario Breen, Paal Aksel Naess, Hallvard Gjerde, Christine Gaarder, Arne Stray-Pedersen
Driver fatalities in motor vehicle collisions (MVCs) encompass accidents, suicides, and natural deaths when driving. The objective of this study was to determine the significance of pathology and other autopsy findings for drivers in fatal MVCs. Forensic autopsy records of driver fatalities in southeast Norway between 2000 and 2014 were studied retrospectively. Data from individual police and collision investigation reports were also collected and analyzed. In 406 driver fatalities, the male/female ratio was 340/66; 9% died from natural causes, 9% were suicides, 65% were culpable accidental deaths, 14% were nonculpable deaths, and 3% were undetermined deaths...
November 28, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29184896/formative-evaluation-on-cultural-tailoring-breathing-awareness-meditation-smartphone-apps-to-reduce-stress-and-blood-pressure
#17
John C Sieverdes, Zachary W Adams, Lynne Nemeth, Brenda Brunner-Jackson, Martina Mueller, Ashley Anderson, Sachin Patel, Luke Sox, Frank A Treiber
Background: Chronic stress is an independent risk factor for essential hypertension (EH), cardiovascular disease (CVD), and is sometimes confronted by mal-adaptive coping behaviors (e.g., stress eating, excessive alcohol consumption, etc.). Pre-essential hypertension (preEH) is the leading predictor of future EH status. Breathing awareness meditation (BAM) can result in clinically beneficial blood pressure (BP) reductions, though face-to-face sessions presents barriers to reach those in need...
2017: MHealth
https://www.readbyqxmd.com/read/29183383/the-opioid-epidemic-a-central-role-for-the-blood-brain-barrier-in-opioid-analgesia-and-abuse
#18
REVIEW
Charles P Schaefer, Margaret E Tome, Thomas P Davis
Opioids are currently the primary treatment method used to manage both acute and chronic pain. In the past two to three decades, there has been a surge in the use, abuse and misuse of opioids. The mechanism by which opioids relieve pain and induce euphoria is dependent on the drug crossing the blood-brain barrier and accessing the central nervous system. This suggests the blood brain barrier plays a central role in both the benefits and risks of opioid use. The complex physiological responses to opioids that provide the benefits and drive the abuse also needs to be considered in the resolution of the opioid epidemic...
November 29, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29181526/cortical-structures-associated-with-human-blood-pressure-control
#19
Nuria Lacuey, Johnson P Hampson, Wanchat Theeranaew, Bilal Zonjy, Ajay Vithala, Norma J Hupp, Kenneth A Loparo, Jonathan P Miller, Samden D Lhatoo
Importance: A better understanding of the role of cortical structures in blood pressure control may help us understand cardiovascular collapse that may lead to sudden unexpected death in epilepsy (SUDEP). Objective: To identify cortical control sites for human blood pressure regulation. Design, Setting, and Participants: Patients with intractable epilepsy undergoing intracranial electrode implantation as a prelude to epilepsy surgery in the Epilepsy Monitoring Unit at University Hospitals Cleveland Medical Center were potential candidates for this study...
November 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29181453/supporting-surveillance-capacity-for-antimicrobial-resistance-laboratory-capacity-strengthening-for-drug-resistant-infections-in-low-and-middle-income-countries
#20
Anna C Seale, Coll Hutchison, Silke Fernandes, Nicole Stoesser, Helen Kelly, Brett Lowe, Paul Turner, Kara Hanson, Clare I R Chandler, Catherine Goodman, Richard A Stabler, J Anthony G Scott
Development of antimicrobial resistance (AMR) threatens our ability to treat common and life threatening infections. Identifying the emergence of AMR requires strengthening of surveillance for AMR, particularly in low and middle-income countries (LMICs) where the burden of infection is highest and health systems are least able to respond. This work aimed, through a combination of desk-based investigation, discussion with colleagues worldwide, and visits to three contrasting countries (Ethiopia, Malawi and Vietnam), to map and compare existing models and surveillance systems for AMR, to examine what worked and what did not work...
2017: Wellcome Open Research
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