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https://www.readbyqxmd.com/read/29245041/stability-of-postmortem-methemoglobin-artifactual-changes-caused-by-storage-conditions
#1
Vincent Varlet, Elenore Ryser, Marc Augsburger, Cristian Palmiere
Hemoglobin is the protein in red blood cells that carries and distributes oxygen to the body. Methemoglobinemia is a blood disorder in which an abnormal amount of methemoglobin (MetHb), a form of hemoglobin (Hb), is produced from either inadequate MetHb reductase activity or too much MetHb production or by exposure to oxidizing agents. This could lead to anoxia and death if it is not treated. However, this parameter has not been investigated as a valid post-mortem indicator because random MetHb levels have been observed in various studies: MetHb increases can be observed due to autoxidation during storage, and MetHb decreases can be observed due to MetHb reductase or microbial activity in post-mortem samples...
December 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29243119/action-observation-or-imitation-of-virtual-hand-movement-affect-differently-regions-of-the-mirror-neuron-system-and-the-default-mode-network
#2
Nabila Brihmat, Mohamed Tarri, Yann Quidé, Ketty Anglio, Bernard Pavard, Evelyne Castel-Lacanal, David Gasq, Xavier De Boissezon, Philippe Marque, Isabelle Loubinoux
Virtual reality (VR)-based paradigms use visual stimuli that can modulate visuo-motor networks leading to the stimulation of brain circuits. The aims of this study were to compare the changes in blood-oxygenation level dependent (BOLD) signal when watching and imitating moving real (RH) and virtual hands (VH) in 11 healthy participants (HP). No differences were found between the observation of RH or VH making this VR-based experiment a promising tool for rehabilitation protocols. VH-imitation involved more the ventral premotor cortex (vPMC) as part of the mirror neuron system (MNS) compared to execution and VH-observation conditions...
December 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29242654/comparison-of-volume-control-and-pressure-control-ventilation-in-patients-undergoing-single-level-anterior-cervical-discectomy-and-fusion-surgery
#3
Srilata Moningi, Praveen Kumar Elmati, Prasad Rao, Geetha Kanithi, Dilip Kumar Kulkarni, Gopinath Ramachandran
Background and Aims: Pressure control and volume control ventilation are the most preferred modes of ventilator techniques available in the intraoperative period. The study compared the intraoperative ventilator and blood gas variables of volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) in patients undergoing single level anterior cervical discectomy and fusion (ACDF). Methods: After obtaining Institutional Ethical Committee approval and informed consent, sixty patients scheduled for single level ACDF surgery performed in supine position under general anaesthesia were included...
October 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29242126/significance-of-elevated-prohibitin-1-levels-in-multiple-sclerosis-patients-lymphocytes-towards-the-assessment-of-subclinical-disease-activity-and-its-role-in-the-central-nervous-system-pathology-of-disease
#4
Satheesh Kumar M K, Sreepriya Nair, Ullas Mony, Sugavanan Kalingavarman, Ramaswamynathan Venkat, Sivanarayanan T B, Unni Akk, Ramiah Rajeshkannan, Anandakumar Anandakuttan, Sureshkumar Radhakrishnan, Krishnakumar N Menon
Multiple Sclerosis (MS) is an autoimmune-neurodegenerative disorder managed therapeutically by modulating lymphocytes activity which has potential in disease management. Prohibitin 1(PHB) that controls the reactive oxygen species (ROS) and present on the activated lymphocytes have significance in the therapy of MS as esters of fumaric acid that regulates ROS is in phase II/III clinical trials. Thus, we evaluated the expression levels of PHB1 in experimental autoimmune encephalomyelitis (EAE), the animal model of MS and on MS patient's lymphocytes...
December 11, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29242121/postinduction-butorphanol-administration-alters-oxygen-consumption-to-improve-blood-gases-in-etorphine-immobilized-white-rhinoceros
#5
Peter Buss, Michele Miller, Andrea Fuller, Anna Haw, Eliza Stout, Francisco Olea-Popelka, Leith Meyer
OBJECTIVE: To investigate the effects of postinduction butorphanol administration in etorphine-immobilized white rhinoceros on respiration and blood gases. STUDY DESIGN: Randomized crossover study. ANIMALS: A group of six sub-adult male white rhinoceros. METHODS: Etorphine, or etorphine followed by butorphanol 12 minutes after recumbency, was administered intramuscularly [2.5 mg etorphine, 25 mg butorphanol (1000-1250 kg), or 3...
April 17, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29241148/obesity-exacerbates-the-acute-metabolic-side-effects-of-olanzapine
#6
Logan K Townsend, Willem T Peppler, Natasha D Bush, David C Wright
Olanzapine is a second-generation antipsychotic used in the management of schizophrenia and various off-label conditions. The acute metabolic responses of olanzapine recapitulate many of the side effects associated with obesity. Obesity rates are high in the schizophrenic population, but it is unknown whether pre-existing obesity-associated metabolic dysfunction augments the acute side effects of olanzapine. To address this question, we compared the responses to olanzapine in lean and high-fat diet-induced (HFD) obese mice...
December 8, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29241072/combined-efficacy-of-oseltamivir-isoprinosine-and-ellagic-acid-in-influenza-a-h3n2-infected-mice
#7
Elitsa L Pavlova, Lora S Simeonova, Galina A Gegova
Influenza pathogenesis comprises a complex cascade of impaired cellular processes resulting from the viral replication and exaggerated immune response accompanied by reactive oxygen species (ROS) burst and oxidative stress, destructing membranous structures and tissues. By classical virological and biochemical methods we compared and evaluated the therapeutic effects of 2.5mg/kg/day of the antiviral drug - oseltamivir (OS), 500mg/kg/day of the immune modulator - isoprinosine (IP) and 500mg/kg/day of the antioxidant agent ellagic acid (EA) with a focus on their combined activities in influenza H3N2 virus-infected mice...
December 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29240923/neutrophil-activation-signature-in-juvenile-idiopathic-arthritis-indicates-the-presence-of-low-density-granulocytes
#8
Kavitha Ramanathan, Anna Glaser, Hanna Lythgoe, Joanne Ong, Michael W Beresford, Angela Midgley, Helen L Wright
Objective: JIA is an autoimmune, inflammatory disease with involvement of innate and adaptive immune responses. However, the role of neutrophils in JIA pathogenesis remains unclear. This study aimed to identify and validate neutrophil gene expression signatures in JIA using public microarray datasets and new clinical samples. Methods: Three suitable datasets were analysed by significance analysis of microarray and Ingenuity. Neutrophils and peripheral blood mononuclear cells (PBMCs) were isolated from a new cohort of JIA patients and healthy paediatric controls (HCs)...
December 12, 2017: Rheumatology
https://www.readbyqxmd.com/read/29240833/vagal-nerve-stimulation-triggers-widespread-responses-and-alters-large-scale-functional-connectivity-in-the-rat-brain
#9
Jiayue Cao, Kun-Han Lu, Terry L Powley, Zhongming Liu
Vagus nerve stimulation (VNS) is a therapy for epilepsy and depression. However, its efficacy varies and its mechanism remains unclear. Prior studies have used functional magnetic resonance imaging (fMRI) to map brain activations with VNS in human brains, but have reported inconsistent findings. The source of inconsistency is likely attributable to the complex temporal characteristics of VNS-evoked fMRI responses that cannot be fully explained by simplified response models in the conventional model-based analysis for activation mapping...
2017: PloS One
https://www.readbyqxmd.com/read/29240674/evaluation-of-the-cytotoxicity-and-genotoxicity-of-flavonolignans-in-different-cellular-models
#10
Michal Bijak, Ewelina Synowiec, Przemyslaw Sitarek, Tomasz Sliwiński, Joanna Saluk-Bijak
Flavonolignans are the main components of silymarin, which represents 1.5-3% of the dry fruit weight of Milk thistle (Silybum marianum L. Gaernt.). In ancient Greece and Romania, physicians and herbalists used the Silybum marianum to treat a range of liver diseases. Besides their hepatoprotective action, silymarin flavonolignans have many other healthy properties, such as anti-platelet and anti-inflammatory actions. The aim of this study was to evaluate the toxic effect of flavonolignans on blood platelets, peripheral blood mononuclear cells (PBMCs) and human lung cancer cell line-A549-using different molecular techniques...
December 14, 2017: Nutrients
https://www.readbyqxmd.com/read/29240631/in-vivo-5-day-animal-studies-of-a-compact-wearable-pumping-artificial-lung
#11
Shalv P Madhani, Brian J Frankowski, Sang-Ho Ye, Greg W Burgreen, William R Wagner, Robert Kormos, Jonathan D'Cunha, William J Federspiel
Recent studies show improved outcomes in ambulated lung failure patients. Ambulation still remains a challenge in these patients. This necessitates development of more compact and less cumbersome respiratory support specifically designed to be wearable. The Paracorporeal Ambulatory Assist Lung (PAAL) is being designed for providing ambulatory support in lung failure patients during bridge to transplant or recovery. We previously published in vitro and acute in vivo results of the PAAL. This study further evaluates the PAAL for 5 days...
December 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29240630/in-vitro-characterization-of-the-pittsburgh-pediatric-ambulatory-lung
#12
Ryan A Orizondo, Alexandra G May, Shalv P Madhani, Brian J Frankowski, Greg W Burgreen, Peter D Wearden, William J Federspiel
Acute and chronic respiratory failure are a significant source of pediatric morbidity and mortality. Current respiratory support options used to bridge children to lung recovery or transplantation typically render them bedridden and can worsen long-term patient outcomes. The Pittsburgh Pediatric Ambulatory Lung (P-PAL) is a wearable pediatric blood pump and oxygenator (0.3 m surface area) integrated into a single compact unit that enables patient ambulation. The P-PAL is intended for long-term use and designed to provide up to 90% of respiratory support in children weighing 5-25 kg...
December 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29240628/circulatory-support-with-extracorporeal-membrane-oxygenation-and-or-impella-for-cardiogenic-shock-during-myocardial-infarction
#13
Marc Mourad, Philippe Gaudard, Pablo De La Arena, Jacob Eliet, Norddine Zeroual, Philippe Rouvière, François Roubille, Bernard Albat, Pascal H Colson
Temporary mechanical circulatory support (TCS) is recommended for patients with profound cardiogenic shock (CS). Extracorporeal membrane oxygenation (ECMO) and Impella are possible TCS devices, but the device choice and the implantation timing are not definitely established, specifically during acute myocardial infarction. We have analyzed the respective use of ECMO or Impella (2.5, CP, or 5.0) for CS following acute myocardial infarction , from a cohort of patients who underwent TCS within 72 hours after admission for emergency percutaneous coronary intervention (PCI) from January 2009 to April 2015...
December 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29239779/gender-differences-in-residual-effect-of-prior-drop-jumps-on-oxygen-uptake-during-heavy-cycling-exercise
#14
Neringa Baranauskienė, Sandra Kilikevičienė, Loreta Stasiulė, Genuvaitė Civinskienė, Arvydas Stasiulis
BACKGROUND AND OBJECTIVE: Unaccustomed eccentric or eccentric-concentric exercise leaves us stiff and sore the next day and can cause muscle damage. The data about the residual effect of prior eccentric-concentric exercises on oxygen uptake (VO2) during constant cycling exercise in women or the data about differences of such effect between genders are scarce. Therefore, the aim of this study was to assess differences of the residual effect of PDJ on VO2 during HCE and indirect muscle damage parameters between women and men...
November 1, 2017: Medicina
https://www.readbyqxmd.com/read/29239263/percutaneous-mechanical-thrombectomy-combined-with-catheter-directed-thrombolysis-in-the-treatment-of-acute-pulmonary-embolism-and-lower-extremity-deep-venous-thrombosis-a-novel-one-stop-endovascular-strategy
#15
Bing Liu, MingYuan Liu, LiHong Yan, JunWei Yan, Jiang Wu, XueFei Jiao, MingJin Guo
Objective This study was performed to evaluate the efficacy and feasibility of percutaneous mechanical thrombectomy (PMT) combined with catheter-directed thrombolysis (CDT) in patients with acute pulmonary embolism (APE) and lower extremity deep venous thrombosis (LEDVT). Methods In total, 20 consecutive patients with APE and LEDVT were prospectively selected for PMT combined with CDT. Mechanical thrombus fragmentation and aspiration using a pigtail rotation catheter followed by CDT was performed in each patient...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29238996/quality-management-of-a-massive-transfusion-protocol
#16
John R Hess, Patrick J Ramos, Nina E Sen, Virginia G Cruz-Cody, Erin E Tuott, Max J Louzon, Eileen M Bulger, Saman Arbabi, Monica B Pagano, Ryan A Metcalf
BACKGROUND: Massive transfusion is a response to massive uncontrolled hemorrhage. To be effective, it must be timely and address the patient's needs for blood volume, oxygen transport, and hemostasis. STUDY DESIGN AND METHODS: A review was performed on all activations of the massive transfusion protocol (MTP) in a hospital with large emergency medicine, trauma, and vascular surgery programs. Indications, transfused amounts, and outcomes were determined for each MTP event to determine appropriateness of MTP use...
December 13, 2017: Transfusion
https://www.readbyqxmd.com/read/29238951/pharmacologic-targeting-of-red-blood-cells-to-improve-tissue-oxygenation
#17
James D Reynolds, Trevor Jenkins, Faisal Matto, Ryan Nazemian, Obada Farhan, Nathan Morris, John M Longphre, Douglas T Hess, Richard E Moon, Claude A Piantadosi, Jonathan S Stamler
Disruption of microvascular blood flow is a common cause of tissue hypoxia in disease, yet no therapies are available that directly target the microvasculature to improve tissue oxygenation. Red blood cells (RBCs) auto-regulate blood flow through S-nitroso-hemoglobin (SNO-Hb)-mediated export of nitric oxide (NO) bioactivity. We therefore tested the idea that pharmacological enhancement of RBCs using the S-nitrosylating agent ethyl nitrite (ENO) may provide a novel approach to improve tissue oxygenation. Serial ENO dosing was carried out in sheep (1-400 ppm) and humans (1-100 ppm) at normoxia and at reduced FiO2 ...
December 14, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29238916/impact-of-bariatric-surgical-intervention-on-peripheral-blood-neutrophil-pbn-function-in-obesity
#18
Helen M Roberts, Melissa M Grant, Naomi Hubber, Paul Super, Rishi Singhal, Iain L C Chapple
AIM: The aim of this study was to investigate the impact of weight loss following gastric band surgery on multiple measures of peripheral blood neutrophil (PBN) function. MATERIAL AND METHODS: Twenty-three obese patients undergoing gastric band surgery were recruited to a longitudinal intervention study, alongside non-obese, healthy gender- and age-matched controls. Eighteen pairs of patients and controls completed all stages of the study. PBNs were isolated by density centrifugation and a comprehensive analysis of PBN function was undertaken at various stages of the patients' bariatric surgical care pathway...
December 14, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29237999/the-relationships-among-hyperuricemia-body-mass-index-and-impaired-renal-function-in-type-2-diabetic-patients
#19
Yongmei Li, Xing Fan, Chunjun Li, Xinyue Zhi, Liyuan Peng, Hongling Han, Bei Sun
Chronic kidney disease (CKD) is a common chronic microvascular complication and the major cause of death in diabetic patients. This study was conceived to explore the possible mechanisms of how hyperuricemia and obesity contribute to renal function impairment in type 2 diabetic (T2DM) patients. A cross-sectional study in 609 participants recruited from a T2DM population in North China was conducted. The multiplicative interaction between body mass index (BMI) and uric acid (UA) level was assessed using an interaction term in a logistic regression analysis...
December 13, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29237763/bisphenol-a-phthalate-metabolites-and-glucose-homeostasis-in-healthy-normal-weight-children
#20
Amalie Carlsson, Kaspar Sørensen, Anna-Maria Andersson, Hanne Frederiksen, Anders Juul
INTRODUCTION: Bisphenol A and several of the most commonly used phthalates have been associated with adverse metabolic health effects such as obesity and diabetes. Therefore, we analyzed these man-made chemicals in first morning urine samples from 107 healthy normal-weight Danish children and adolescents. METHOD: This was a cross-sectional study. Participants were recruited as part of The COPENHAGEN Puberty Study. The subjects were evaluated by an oral glucose tolerance test (OGTT), a dualenergy X-ray absorptiometry (DXA) scan, direct oxygen uptake measurement during cycle ergometry, and fasting blood samples...
December 13, 2017: Endocrine Connections
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