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https://www.readbyqxmd.com/read/28215013/crowded-skies-conflicts-between%C3%A2-expanding%C3%A2-goose-populations-and-aviation-safety
#1
David R Bradbeer, Camilla Rosenquist, Thomas Kjær Christensen, Anthony D Fox
We here review the collision risks posed by large-bodied, flocking geese to aircraft, exacerbated by recent major increases in northern hemisphere goose populations and air traffic volume. Mitigation of goose-aircraft strike risks requires knowledge of local goose movements, global goose population dynamics and ecology. Airports can minimise goose strikes by managing habitats within the airport property, applying deterrents to scare geese away and lethal control, but goose migration and movements at greater spatial scales present greater challenges...
March 2017: Ambio
https://www.readbyqxmd.com/read/28214930/investigation-of-optical-neuro-monitoring-technique-for-detection-of-maintenance-and-emergence-states-during-general-anesthesia
#2
Gabriela Hernandez-Meza, Meltem Izzetoglu, Mary Osbakken, Michael Green, Hawa Abubakar, Kurtulus Izzetoglu
The American Society of Anesthesiologist recommends peripheral physiological monitoring during general anesthesia, which offers no information regarding the effects of anesthetics on the brain. Since no "gold standard" method exists for this evaluation, such a technique is needed to ensure patient comfort, procedure quality and safety. In this study we investigated functional near infrared spectroscopy (fNIRS) as possible monitor of anesthetic effects on the prefrontal cortex. Anesthetic drugs, such as sevoflurane, suppress the cerebral metabolism and alter the cerebral blood flow...
February 18, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28214904/rs10719-polymorphism-located-within-drosha-3-untranslated-region-is-responsible-for-development-of-primary-hypertension-by-disrupting-binding-with-microrna-27b
#3
Yabing Zhang, Ai-Lin Cao, Chun Dong
BACKGROUND MiR-27b is reportedly involved with many diseases (e.g., gastric cancer) by acting on different signaling pathways. In this study, we aimed at understanding the relationship between miR-27b and hypertension and its underlying molecular mechanism. MATERIAL AND METHODS Peripheral blood was collected from patients with hypertension, and statistical analysis was performed to study the association between rs10719 and risk of hypertension. Tissue samples were collected from patients with lung cancer, and the expression of miR-27b and DROSHA was determined using Western blot analysis and real-time PCR...
February 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28214852/the-clinical-manifestation-and-genetic-evaluation-in-patients-with-45-x-46-xy-mosaicism
#4
Qinghua Wu, Cong Wang, Huirong Shi, Xiangdong Kong, Shumin Ren, Miao Jiang
45,X/46,XY mosaicism is a rare chromosomal abnormality and probably underdiagnosed. Although clinical and genetic analyses have been performed in some disorders of sexual development, there have been few studies focusing on the phenotype and genetic details of 45,X/46,XY mosaicism, especially in the Chinese population. The aim of this study was to describe the experience of our service in relation to 16 cases with 45,X/46,XY mosaicism. The age at the first evaluation of the patients ranged from 43 days to 30 years...
February 18, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28214683/neutron-measurements-in-radiotherapy-a-method-to-correct-neutron-sensitive-devices-for-parasitic-photon-response
#5
L Irazola, J A Terrón, R Bedogni, A Pola, M Lorenzoli, E Jimenez-Ortega, A R Barbeiro, B Sánchez-Nieto, F Sánchez-Doblado
One of the major causes of secondary malignancies after radiotherapy treatments are peripheral doses, known to increase for some newer techniques (such as IMRT or VMAT). For accelerators operating above 10MV, neutrons can represent important contribution to peripheral doses. This neutron contamination can be measured using different passive or active techniques, available in the literature. As far as active (or direct-reading) procedures are concerned, a major issue is represented by their parasitic photon sensitivity, which can significantly affect the measurement when the point of test is located near to the field-edge...
February 12, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28214579/motor-training-and-the-combination-of-action-observation-and-peripheral-nerve-stimulation-reciprocally-interfere-with-the-plastic-changes-induced-in-primary-motor-cortex-excitability
#6
Ambra Bisio, Laura Avanzino, Monica Biggio, Piero Ruggeri, Marco Bove
AO-PNS is a stimulation protocol combining action observation (AO) and peripheral nerve stimulation (PNS) to induce plasticity in the primary motor cortex (M1) (increased excitability). Another method to increase M1 excitability is motor training. The combination of two protocols, which individually induce long-term potentiation (LTP)-like plasticity in overlapping neural circuits, results in a transitory occlusion or reverse of this phenomenon. This study aimed to understand the neurophysiological mechanisms underlying AO-PNS by testing whether AO-PNS and motor training induced LTP-like plasticity in, at least partially, overlapping neural networks...
February 15, 2017: Neuroscience
https://www.readbyqxmd.com/read/28214555/identification-of-a-fatty-acid-binding-protein4-ucp2-axis-regulating-microglial-mediated-neuroinflammation
#7
Cayla M Duffy, Hongliang Xu, Joshua P Nixon, David A Bernlohr, Tammy A Butterick
Hypothalamic inflammation contributes to metabolic dysregulation and the onset of obesity. Dietary saturated fats activate microglia via a nuclear factor-kappa B (NFκB) mediated pathway to release pro-inflammatory cytokines resulting in dysfunction or death of surrounding neurons. Fatty acid binding proteins (FABPs) are lipid chaperones regulating metabolic and inflammatory pathways in response to fatty acids. Loss of FABP4 in peripheral macrophages via either molecular or pharmacologic mechanisms results in reduced obesity-induced inflammation via a UCP2-redox based mechanism...
February 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28214536/t-cell-immunoregulation-in-active-ocular-toxoplasmosis
#8
Cynthia A Cordeiro, Erica L M Vieira, Vinicius M Castro, Walderez O Dutra, Rogerio A Costa, Juliana L Orefice, Wesley R Campos, Fernando Orefice, Lucy H Young, Antonio Lucio Teixeira
Toxoplasma gondii infection is an important cause of infectious ocular disease. The physiopathology of retinochoroidal lesions associated with this infection is not completely understood. The present study was undertaken to investigate cytokine production by T cells from individuals with active toxoplasmic retinochoroiditis (TR) comparing with controls. Eighteen patients with active TR and 15 healthy controls (6 controls IgG(+) to Toxoplasma and 9 negative controls) were included in the study. Peripheral blood mononuclear cells were incubated in the presence or absence of T...
February 15, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28214524/bile-acid-control-of-metabolism-and-inflammation-in-obesity-type-2-diabetes-dyslipidemia-and-nafld
#9
Oscar Chávez-Talavera, Anne Tailleux, Philippe Lefebvre, Bart Staels
Bile acids are signaling molecules, which coordinately regulate metabolism and inflammation via the nuclear farnesoid X receptor (FXR) and the Takeda G protein-coupled receptor 5 (TGR5). These receptors activate transcriptional networks and signaling cascades controlling the expression and activity of genes involved in bile acid, lipid and carbohydrate metabolism, energy expenditure, and inflammation by acting predominantly in entero-hepatic tissues, but also in peripheral organs. In this review, we discuss the most recent findings on the inter-organ signaling and interplay with the gut microbiota of bile acids and their receptors in meta-inflammation, with a focus on their pathophysiological roles in obesity, type 2 diabetes, dyslipidemia and non-alcoholic steatohepatitis and their potential therapeutic applications...
February 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28214515/igg-degrading-enzyme-of-streptococcus-pyogenes-ides-prevents-disease-progression-and-facilitates-improvement-in-a-rabbit-model-of-guillain-barr%C3%A3-syndrome
#10
Yuzhong Wang, Qiguang Shi, Hui Lv, Ming Hu, Weifang Wang, Quanquan Wang, Baojun Qiao, Guorong Zhang, Zhanyun Lv, Christian Kjellman, Sofia Järnum, Lena Winstedt, Yong Zhang, Jiao Wen, Yanlei Hao, Nobuhiro Yuki
Autoantibodies binding to peripheral nerves followed by complement deposition and membrane attack complex formation results in nerve damage in Guillain-Barré syndrome (GBS). Strategies to remove the pathogenic autoantibodies or block the complement deposition benefit most patients with GBS. Immunoglobulin G-degrading enzyme of Streptococcus pyogenes (IdeS) is a cysteine protease which cleaves IgG antibodies into F(ab')2 and Fc fragments. In this study, using a rabbit model of axonal GBS, acute motor axonal neuropathy (AMAN), we demonstrated that IdeS treatment significantly reduced the disruption of Nav channels as well as activated C3 deposition at the anterior spinal root nodes of Ranvier in AMAN rabbits...
February 15, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28214485/outcome-of-peripheral-venous-reconstructions-during-tumor-resection
#11
Philip Y Sun, Mark D Fleming, Kendall Stauffer, Manju Kalra, Gustavo Oderich, Thomas Bower, Peter Gloviczki, Randall R DeMartino
OBJECTIVE: Peripheral venous reconstruction surgery may be necessary for appropriate oncologic resection; however, the operative approach and surgical outcomes are not well described. We report our experience with these complex reconstructions to identify best practice. METHODS: We retrospectively reviewed all adult patients who underwent peripheral vein reconstruction for tumor resection at Mayo Clinic, Rochester (2000-2015). Patients were classified into three subgroups by the location: iliac (IL), lower extremity (LE), and upper extremity (UE)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214463/bridging-the-gap-in-peripheral-nerve-repair
#12
Donato Perretta, Steven Green
Peripheral nerve injuries following trauma present an ongoing challenge to the hand surgeon. This review presents an overview of the topic with a historical perspective. Nerve anatomy and nerve injury classifications are discussed followed by a description of the biology of nerve regeneration. Methods used to bridge gaps in peripheral nerve repair are discussed in detail with a critical appraisal of the most recent literature. Recommendations for surgical treatment are formulated based on evidence-based medicine...
January 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28214365/peripheral-blood-leukocytes-show-differential-expression-of-tumour-progression-related-genes-in-colorectal-cancer-patients-who-have-a-postoperative-intra-abdominal-infection-a-prospective-matched-cohort-study
#13
S Alonso, X Mayol, L Nonell, S Salvans, M Pascual, M Pera
AIM: Anastomotic leak is associated with higher rates of recurrence after surgery for colorectal cancer. However, the mechanisms responsible are unknown. We hypothesized that the infection-induced inflammatory response may induce overexpression of tumour progression-related genes in immune cells. The aim was to investigate the effect of postoperative intra-abdominal infection on the gene expression patterns of peripheral blood leukocytes (PBL) after surgery for colorectal cancer. METHODS: Prospective matched cohort study...
February 18, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28214293/ultra-high-frequency-ultrasound-of-fascicles-in-the-median-nerve-at-the-wrist
#14
Michael S Cartwright, Vanessa Baute, James B Caress, Francis O Walker
INTRODUCTION: An ultra high-frequency (70 MHz) ultrasound device has recently been approved for human use. This study was conducted to determine if this device facilitates counting of fascicles within the median nerve at the wrist. METHODS: Twenty healthy volunteers underwent imaging of the median nerve at the wrist bilaterally. The number of fascicles in each nerve was counted by two independent raters. RESULTS: The mean fascicle number was 22...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214287/association-of-warfarin-with-congestive-heart-failure-and-peripheral-artery-occlusive-disease-in-hemodialysis-patients-with-atrial-fibrillation
#15
Kuo-Hua Lee, Szu-Yuan Li, Jin-Sin Liu, Chi-Ting Huang, Ying-Ying Chen, Yao-Ping Lin, Chih-Cheng Hsu, Der-Cherng Tarng
BACKGROUND: The effect of warfarin on the risk of cardiovascular (CV) disease is unknown among chronic hemodialysis patients with atrial fibrillation (HD-AF). METHODS: Population-based propensity score and prescription time-distribution matched cohort study including 6719 HD-AF patients with CHA2DS2-VASc score ≥ 2 were divided into warfarin users and nonusers and followed-up for CV events and death. RESULTS: Warfarin treatment in HD-AF patients with AF preceding HD was associated with higher risks of developing congestive heart failure [hazard ratio (HR)=1...
February 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28214130/stability-of-sensory-topographies-in-adult-cortex
#16
REVIEW
Tamar R Makin, Sliman J Bensmaia
Textbooks teach us that the removal of sensory input to sensory cortex, for example, following arm amputation, results in massive reorganisation in the adult brain. In this opinion article, we critically examine evidence for functional reorganisation of sensory cortical representations, focusing on the sequelae of arm amputation on somatosensory topographies. Based on literature from human and non-human primates, we conclude that the cortical representation of the limb remains remarkably stable despite the loss of its main peripheral input...
February 14, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28214040/reinforcement-of-intestinal-epithelial-barrier-by-arabinoxylans-in-overweight-and-obese-subjects-a-randomized-controlled-trial-arabinoxylans-in-gut-barrier
#17
Bouke N Salden, Freddy J Troost, Ellen Wilms, Pilar Truchado, Ramiro Vilchez-Vargas, Dietmar H Pieper, Ruy Jáuregui, Massimo Marzorati, Tom van de Wiele, Sam Possemiers, Ad A Masclee
BACKGROUND & AIMS: Obesity and metabolic diseases are associated with alterations in microbial composition and impaired gut barrier. Previous in vitro and animal studies have shown that arabinoxylans (AX) have the potential to modulate gut microbiota and gut barrier and therefore could have a protective role. Primary aim of the study was to investigate the effect of AX on intestinal permeability. Secondary aims included the effect of AX on gene transcription and protein expression of tight junctions (TJ), intestinal microbiota composition and activity, immune response and metabolic markers in overweight and obese individuals...
February 3, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28214021/arfi-elastography-changes-after-direct-acting-antiviral-treatment-in-transplanted-livers-with-relapse-of-hepatitis-c-virus-infection
#18
M Alfageme Zubillaga, T Fontanilla Echeveste, I Pérez González, A Royuela Vicente, A M Duca, R M Ruiz Peralbo, C González Hernando
OBJECTIVE: To evaluate the changes in the values obtained in acoustic radiation force impulse (ARFI) elastography of the liver after antiviral treatment in patients with liver transplants and hepatitis C virus (HVC) infection recurring after transplantation. MATERIAL AND METHODS: We studied 15 patients infected with HVC who had received liver transplants where an HVC infection recurring in the graft within one year after the transplant was treated with direct-acting antivirals...
February 14, 2017: Radiología
https://www.readbyqxmd.com/read/28213973/transforming-growth-factor-%C3%AE-induces-bone-marrow-mesenchymal-stem-cell-migration-via-noncanonical-signals-and-n-cadherin
#19
Maria Jose Dubon, Jinyeong Yu, Sanghyuk Choi, Ki-Sook Park
Transforming growth factor-beta (TGF-β) induces the migration and mobilization of bone marrow-derived mesenchymal stem cells (BM-MSCs) to maintain bone homeostasis during bone remodeling and facilitate the repair of peripheral tissues. Although many studies have reported the mechanisms through which TGF-β mediates the migration of various types of cells, including cancer cells, the intrinsic cellular mechanisms underlying cellular migration and mobilization of BM-MSCs mediated by TGF-β are unclear. In this study, we showed that TGF-β activated noncanonical signaling molecules, such as Akt, extracellular signal-regulated kinase 1/2 (ERK1/2), focal adhesion kinase (FAK), and p38, via TGF-β type I receptor in human BM-MSCs and murine BM-MSC-like ST2 cells...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28213891/opioids-and-the-immune-system-friend-or-foe
#20
REVIEW
Lisanne Mirja Plein, Heike L Rittner
Systemically administered opioids are among the most powerful analgesics for treating severe pain. Several negative side-effects (respiratory depression, addiction, nausea, confusion) and the risk of opioid-induced hyperalgesia accompany opioid administration. One other side effect is the potential of opioids to suppress the immune response and thereby to increase the vulnerability for infections. Several studies have investigated the link between opioids and immunosuppression in vitro, in vivo as well as in patients with divergent results: Exogenous opioids such as morphine and fentanyl can impair macrophage and natural killer cell as well as T cell function and weaken the gut barrier in vitro and in animal studies...
February 18, 2017: British Journal of Pharmacology
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