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https://www.readbyqxmd.com/read/27921406/house-dust-mites-confer-a-distinct-immunological-feature-among-dermatitis
#1
Safa Baris, Ahmet Ozen, Tuba Akdeniz, Elif Karakoc-Aydiner, Ovgu Aydin, Hulya Ercan, Ismail Ogulur, Yildiz Camcioglu, Reha Cengizlier, Cuyan Demirkesen, Deniz Yucelten, Gulderen Demirel, Isil B Barlan
Atopic dermatitis (AD) is a heterogeneous disease with regard to clinical phenotype and natural history. We investigated T cell subtypes and cytokine responses in peripheral blood and skin lesions of AD patients with various sensitivities. Immunological studies were performed in 27 subjects: 9 house dust mite (HDM)-sensitized; 6 subjects with sensitizations other than HDM; 7 non-allergic AD patients and 5 healthy controls. Among those, skin biopsy samples of 13 subjects were evaluated for immunohistochemical analyses, as well...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27920751/the-temporal-dynamics-of-perceiving-other-s-painful-actions
#2
Fang Cui, Ruolei Gu, Xiangru Zhu, Yue-Jia Luo
The present study investigates the temporal dynamics of the brain activity predicting the sensory outcomes of observed hand-object interactions of others. Participants are presented with pictures of a hand grasping or withdrawing from noxious and neutral objects. They are then asked to judge whether this hand-object interaction causes painful consequences. In the early stages of stimulus processing, the effect of action was observed in the event-related potential components N1 and N2. Significant interactions of action × object were observed in the later components P3 and late positive potential (LPP): only when the object was noxious, the action "grasp" elicited a significantly larger amplitude than the action "withdrawal"...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27920742/be-strong-enough-to-say-no-self-affirmation-increases-rejection-to-unfair-offers
#3
Ruolei Gu, Jing Yang, Yuanyuan Shi, Yi Luo, Yu L L Luo, Huajian Cai
We propose that self-affirmation may endow people more psychological resources to buffer against the negative influence of rejecting unfair offers in the classic ultimatum game (UG) and further lead to a stronger tendency to reject those offers. We tested this possibility by conducting an event-related potential (ERP) study about the UG, with the ERP component P3 as an indirect indicator of psychological resources. Participants were randomly assigned to the affirmation or control condition and then completed the UG through electrophysiological recording...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27919719/impact-of-left-heart-bypass-on-arterial-oxygenation-during-one-lung-ventilation-for-thoracic-aortic-surgery
#4
Kikuko Suga, Yoshiro Kobayashi, Ryoichi Ochiai
OBJECTIVE: The aim of this study was to reveal the mechanism of improved arterial oxygenation by measuring the changes in oxygenation before and after initiation of left heart bypass (LHB) during one-lung ventilation (OLV) for thoracic aortic surgery. DESIGN: Prospective, observational study. SETTING: Single-institution, private hospital. PARTICIPANTS: The study comprised 50 patients who underwent aortic surgery via a left thoracotomy approach with LHB circulatory support...
September 28, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27919433/sodc-modulates-ras-and-pkb-signaling-in-dictyostelium
#5
Boris Castillo, Seon-Hee Kim, Mujataba Sharief, Tong Sun, Lou W Kim
We have previously reported that the basal RasG activity is aberrantly high in cells lacking Superoxide dismutase C (SodC). Here we report that other Ras proteins such as RasC and RasD activities are not affected in sodC(-) cells and mutagenesis studies showed that the presence of the Cys(118) in the Ras proteins is essential for the superoxide-mediated activation of Ras proteins in Dictyostelium. In addition to the loss of SodC, lack of extracellular magnesium ions increased the level of intracellular superoxide and active RasG proteins...
November 30, 2016: European Journal of Cell Biology
https://www.readbyqxmd.com/read/27919012/atypical-brain-activation-in-children-who-stutter-in-a-visual-go-nogo-task-an-erp-study
#6
Johanna Piispala, Sara Määttä, Ari Pääkkönen, Risto Bloigu, Mika Kallio, Eira Jansson-Verkasalo
OBJECTIVE: The aim of the study was to investigate inhibitory control by evaluating possible differences in the strength and distribution of the brain activity in a visual Go/Nogo task in children who stutter (CWS) compared to typically developing children (TDC). METHODS: Eleven CWS and 19 TDC participated. Event related potentials (ERP) were recorded using a 64-channel EEG-cap during an equiprobable visual Go/Nogo task. The global field power (GFP) as well as the mean amplitudes in the P3 time frame were compared between groups...
November 17, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27917869/neurophysiological-characterization-of-attentional-performance-dysfunction-in-schizophrenia-patients-in-a-reverse-translated-task
#7
Jared W Young, Andrew W Bismark, Yinming Sun, Wendy Zhang, Meghan McIlwain, Ibrahim Grootendorst, Gregory A Light
Attentional dysfunction in schizophrenia (SZ) contributes to the functional deficits ubiquitous to the disorder. Identifying the neural substrates of translational measures of attentional dysfunction would prove invaluable for developing therapeutics. Attentional performance is typically assessed via continuous performance tasks (CPTs), though many place additional cognitive demands with little cross-species test-relevance. Herein, event related potentials (ERPs) were utilized to investigate the neurophysiological correlates of attention and response inhibition of SZ and healthy participants, while they performed the cross-species translated five-choice CPT (5C-CPT)...
December 5, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27910865/auditory-evoked-potential-could-reflect-emotional-sensitivity-and-impulsivity
#8
Ji Sun Kim, Sungkean Kim, Wookyoung Jung, Chang-Hwan Im, Seung-Hwan Lee
Emotional sensitivity and impulsivity could cause interpersonal conflicts and neuropsychiatric problems. Serotonin is correlated with behavioral inhibition and impulsivity. This study evaluated whether the loudness dependence of auditory evoked potential (LDAEP), a potential biological marker of central serotonergic activity, could reflect emotional sensitivity and impulsivity. A total of 157 healthy individuals were recruited, who performed LDAEP and Go/Nogo paradigms during electroencephalogram measurement...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909722/expression-of-soluble-programmed-death-1-protein-in-peripheral-blood-regulatory-t-cells-and-its-effects-on-rheumatoid-arthritis-progression
#9
Chun-Feng Ren, Ya-Xin Zhao, Chun-Feng Hou, Luan Luan, Guo-Qing Duan, Shu-Jie Li, Jian-Hong Zhao
The present study aimed to investigate the role of the soluble programmed death‑1 (sPD-1) protein, which is released by peripheral blood regulatory T cells (Treg) during the progression of rheumatoid arthritis (RA). From October 2012 to May 2014, 82 RA patients (RA group) and 90 healthy volunteers (healthy controls; HC) were recruited. Cluster of differentiation (CD)4, CD25 and forkhead/winged helix transcription factor p3 (Foxp3) and expression of cytotoxic T lymphocyte associated antigen 4 (CTLA-4) and Foxp3 were detected by flow cytometry...
November 28, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27908796/detection-of-novel-gii-17-norovirus-in-argentina-2015
#10
Juan I Degiuseppe, Karina A Gomes, María F Hadad, Gabriel I Parra, Juan A Stupka
During the winter of 2014-2015 a novel GII.17 norovirus strain emerged as a cause of large gastroenteritis outbreaks in Asia; displacing the long-term predominant strain, GII.4. Although sporadically detected, the emerging GII.17 virus was described in North America and Europe. In this study, we describe the presence of this novel strain in Argentina (South America), and provide new information on the genetic diversity of GII.17 noroviruses. Ten stool samples from individuals (1-88years old; median: 5years old) experiencing gastroenteritis symptoms from San Martín de los Andes, Argentina were tested for Norovirus using RT-PCR...
November 28, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27907211/characterization-and-immunomodulatory-effects-of-canine-adipose-tissue-and-bone-marrow-derived-mesenchymal-stromal-cells
#11
Keith A Russell, Natalie H C Chow, David Dukoff, Thomas W G Gibson, Jonathan LaMarre, Dean H Betts, Thomas G Koch
BACKGROUND: Mesenchymal stromal cells (MSC) hold promise for both cell replacement and immune modulation strategies owing to their progenitor and non-progenitor functions, respectively. Characterization of MSC from different sources is an important and necessary step before clinical use of these cells is widely adopted. Little is known about the biology and function of canine MSC compared to their mouse or human counterparts. This knowledge-gap impedes development of canine evidence-based MSC technologies...
2016: PloS One
https://www.readbyqxmd.com/read/27906555/ligand-biased-regulation-of-ptdins-3-4-5-p3-dependent-signal-transduction-in-gpcr-control-of-pituitary-hormone-release
#12
Joshua G Pemberton, John P Chang
Biased signaling describes the selective activation of signal transduction cascades by structurally-related ligands downstream of shared G protein-coupled receptors (GPCRs). Although class I phosphoinositide 3-kinases (PI3Ks) are important components of GPCR-controlled transduction networks, little is known regarding the potential for biased regulation of class I PI3K-dependent signaling. The full compliment of class I PI3K catalytic subunits (p110α, p110β, p110δ and p110γ) first appear in bony fishes and, despite being associated with distinct cellular functions, all class I PI3Ks produce the lipid second-messenger phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3)...
December 1, 2016: Endocrinology
https://www.readbyqxmd.com/read/27906187/systemic-application-of-3-methyladenine-markedly-inhibited-atherosclerotic-lesion-in-apoe-mice-by-modulating-autophagy-foam-cell-formation-and-immune-negative-molecules
#13
Shen Dai, Bo Wang, Wen Li, Liyang Wang, Xingguo Song, Chun Guo, Yulan Li, Fengming Liu, Faliang Zhu, Qun Wang, Xiaoyan Wang, Yongyu Shi, Jianing Wang, Wei Zhao, Lining Zhang
A growing body of evidence demonstrates that autophagy, an evolutionarily conserved intracellular degradation process, is involved in the pathogenesis of atherosclerosis and has become a potential therapeutic target. Here we tested the effect of two inhibitors of phosphatidylinositol 3-kinase, 3-methyladenine (3-MA) and 2-(4-morpholinyl)-8-phenyl-chromone (LY294002), commonly used as inhibitors of autophagy, in atherosclerosis in apolipoprotein E(-/-) mice. Systemic application of 3-MA but not LY294002 markedly reduced the size of atherosclerotic plaque and increased the stability of lesions in high-fat diet-fed mice as compared with controls...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27904839/noncardiac-thoracic-surgery-in-abidjan-from-1977-to-2015
#14
Yves Tanauh, Flavien Kendja, Hervé Yangni-Angate, Blaise Demine, Raphaël Ouédé, Maurice Kouacou
BACKGROUND: To report and analyze noncardiac thoracic operations performed at the Cardiology Institute of Abidjan (Institut de Cardiologie d'Abidjan) from 1977 to 2015. METHODS: This is a retrospective and descriptive study covering 39 years, from 1977 to 2015. This study period was divided into three periods of 13 years each: P1 from 1977 to 1989, P2 from 1990 to 2002 and P3 from 2003 to 2015. Medical records of 2014 operated patients were analyzed: 414 patients for P1, 464 patients for P2, 1,136 patients for P3...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27903653/the-phosphatidylinositol-3-4-5-trisphosphate-pi-3-4-5-p3-binder-rasa3-regulates-phosphoinositide-3-kinase-pi-3-kinase-dependent-integrin-%C3%AE-iib%C3%AE-3-outside-in-signaling
#15
Anthony M Battram, Tom N Durrant, Ejaife O Agbani, Kate J Heesom, David S Paul, Raymond Piatt, Alastair W Poole, Peter J Cullen, Wolfgang Bergmeier, Samantha F Moore, Ingeborg Hers
The class I phosphoinositide 3-kinase (PI 3-kinase) family of lipid kinases plays an important role in integrin αIIbβ3 function, thereby supporting thrombus growth and consolidation. Here, we identify the Ras/Rap1GAP Rasa3 (GAP1IP4BP) as a major phosphatidylinositol-3,4,5-trisphosphate (PI(3,4,5)P3)-binding protein in human platelets and a key regulator of integrin αIIbβ3 outside-in signaling. We demonstrate that cytosolic Rasa3 translocates to the plasma membrane in a PI 3kinase-dependent manner upon activation of human platelets...
November 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27902336/characterization-of-the-banana-streak-virus-capsid-protein-and-mapping-of-the-immunodominant-continuous-b-cell-epitopes-to-the-surface-exposed-n-terminus
#16
Jenny Vo, Paul Campbell, Nur N Mahfuzc, Ras Ramli, Daniel Pagendam, Ross Barnard, Andrew Geering
This study identified the structural proteins of two badnavirus species, Banana streak MY virus (BSMYV) and Banana streak OL virus (BSOLV), and mapped the distribution of continuous B-cell epitopes. Two different CP isoforms of about 44 and 40 kDa (CP1 and CP2) and the virion-associated protein (VAP) were consistently associated with purified virions. For both viral species, the N-terminus of CP2 was successfully sequenced by Edman degradation but that of CP1 was chemically blocked. De novo peptide sequencing of tryptic digests suggested that CP1 and CP2 derive from the same region of the P3 polyprotein but differ in the length of either the N- or C-terminus...
October 24, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27901054/functional-defects-in-cd4-cd25-high-foxp3-regulatory-cells-in-ankylosing-spondylitis
#17
Huifang Guo, Ming Zheng, Kui Zhang, Fengfan Yang, Xin Zhang, Qing Han, Zhi-Nan Chen, Ping Zhu
Forkhead box P3 (FoxP3)-positive regulatory T cells (Tregs) play a pivotal role in the preservation of self-tolerance, and Treg dysfunction has been implicated in many autoimmune diseases. Whether and how Tregs participate in the pathogenesis of ankylosing spondylitis (AS) has not been fully elucidated. Here, we investigated Treg function and found that Tregs in peripheral blood (PB) from patients with active AS had lower FoxP3 mean fluorescence intensity (MFI) than those from healthy controls and could not fully suppress naïve T cell (Tn) proliferation...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900815/selective-3-1-fragmentations-of-p4-by-p-transfer-from-a-lewis-acid-stabilized-rp4-butterfly-anion
#18
Jaap E Borger, Andreas W Ehlers, Martin Lutz, J Chris Slootweg, Koop Lammertsma
Two [3+1] fragmentations of the Lewis acid stabilized bicyclo[1.1.0]tetraphosphabutanide Li[Mes*P4 ⋅ BPh3 ] (Mes*=2,4,6-tBu3 C6 H2 ) are reported. The reactions proceed by extrusion of a P1 fragment, induced by either an imidazolium salt or phenylisocyanate, with release of the transient triphosphirene Mes*P3 , which was isolated as a dimer and trapped by 1,3-cyclohexadiene as a Diels-Alder adduct. DFT quantum chemical computations were used to delineate the reaction mechanisms. These unprecedented pathways grant access to both P1 - and P3 -containing organophosphorus compounds in two simple steps from white phosphorus...
November 30, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27898854/enteric-methane-and-carbon-dioxide-emissions-measured-using-respiration-chambers-the-sulfur-hexafluoride-tracer-technique-and-a-greenfeed-head-chamber-system-from-beef-heifers-fed-alfalfa-silage-at-three-allowances-and-four-feeding-frequencies
#19
A Jonker, G Molano, C Antwi, G C Waghorn
The objective of this study was to determine methane (CH) and carbon dioxide (CO) emissions from 8 beef heifers (approximately 20 mo of age and 382 ± 24.3 kg BW) measured by respiration chambers and the sulfur hexafluoride (SF) tracer technique and a mobile head-chamber, spot-sampling system (GreenFeed; C-Lock Inc., Rapid City, SD) when fed alfalfa silage at 3 feeding levels and 4 feeding frequencies. Feeding frequency may affect CH yield (g/kg DMI), and measurement systems (such as GreenFeed or SF) are needed to obtain accurate estimates of CH emissions from individual cattle under grazing where new pasture is provided once or twice daily...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27897158/iqgap1-makes-pi-3-k-signalling-as-easy-as-pip-pip2-pip3
#20
Lucia E Rameh, Ashley M Mackey
Despite being one of the most studied signalling pathways, precisely how phospholipid synthesis is regulated in the phosphoinositide signalling cascade remains unclear. The scaffold protein IQGAP1 is now shown to orchestrate the assembly of a multi-enzyme complex that streamlines PtdIns(3,4,5)P3 synthesis to facilitate Akt activation in response to extracellular stimuli.
November 29, 2016: Nature Cell Biology
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