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https://www.readbyqxmd.com/read/28107553/protective-effect-of-n-n-dimethylthiourea-against-stress-induced-gastric-mucosal-lesions-in-rats
#1
Yoshiji Ohta, Koji Yashiro, Takashi Kobayashi, Kazuo Inui, Junji Yoshino
In the present study, we examined the protective effect of N,N'-dimethylthiourea (DMTU), a scavenger of hydroxyl radical (•OH), against water-immersion restraint stress (WIRS)-induced gastric mucosal lesions in rats. When male Wistar rats fasted for 24 h were exposed to WIRS for 3 h, gastric mucosal lesions occurred with increases in the levels of gastric mucosal myeloperoxidase, an index of tissue neutrophil infiltration, pro-inflammatory cytokines (tumor necrosis factor alpha and interleukin 1beta), lipid peroxide, and NOx (nitrite/nitrate), an index of nitric oxide synthesis, and decreases in the levels of gastric mucosal non-protein SH and vitamin C and gastric adherent mucus...
January 20, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28107511/environmental-enrichment-blunts-ethanol-consumption-after-restraint-stress-in-c57bl-6-mice
#2
Priscila Marianno, Karina Possa Abrahao, Rosana Camarini
Elevated alcohol intake after abstinence is a key feature of the addiction process. Some studies have shown that environmental enrichment (EE) affects ethanol intake and other reinforcing effects. However, different EE protocols may vary in their ability to influence alcohol consumption and stress-induced intake. The present study evaluated whether short (3 h) or continuous (24 h) EE protocols affect ethanol consumption after periods of withdrawal. Mice were challenged with stressful stimuli (24 h isolation and restraint stress) to evaluate the effects of stress on drinking...
2017: PloS One
https://www.readbyqxmd.com/read/28107435/peptide-targeted-by-human-antibodies-associated-with-hiv-vaccine-associated-protection-assumes-a-dynamic-%C3%AE-helical-structure
#3
Mohammed S Aiyegbo, Evgeny Shmelkov, Lorenzo Dominguez, Michael Goger, Shibani Battacharya, Allan C deCamp, Peter B Gilbert, Phillip W Berman, Timothy Cardozo
The only evidence of vaccine-induced protection from HIV acquisition in humans was obtained in the RV144 HIV vaccine clinical trial. One immune correlate of risk in RV144 was observed to be higher titers of vaccine-induced antibodies (Abs) reacting with a 23-mer non-glycosylated peptide with the same amino acid sequence as a segment in the second variable (V2) loop of the MN strain of HIV. We used NMR to analyze the dynamic 3D structure of this peptide. Distance restraints between spatially proximate inter-residue protons were calculated from NOE cross peak intensities and used to constrain a thorough search of all possible conformations of the peptide...
2017: PloS One
https://www.readbyqxmd.com/read/28106929/conformational-analysis-of-an-antibacterial-cyclodepsipeptide-active-against-m-tuberculosis-by-a-combined-roe-and-rdc-analysis
#4
Maic Fredersdorf, Michael Kurz, Armin Bauer, Marc-Olivier Ebert, Carla Rigling, Laurie Lannes, Christina Thiele
Griselimycin (GM) and methylgriselimycin (MGM), naturally produced by microorganisms of the genus Streptomyces, are cyclic depsipeptides composed of ten amino acids. They exhibit antibacterial activity against mycobacterium species by inhibiting the sliding clamp of prokaryotic DNA polymerase III and are therefore considered as potential anti-tuberculosis drugs. The difference between both peptides is the presence of L -(R)-4-methylproline in MGM instead of L -proline in GM at position 8 of the amino acid sequence...
January 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28106905/non-inferiority-trials-no-better-no-worse-no-change-no-pain
#5
REVIEW
Robert K Hills
With improvements in care over time it becomes harder to improve clinical outcomes in those conditions where cure rates are high. The focus of research can thus turn to the so-called non-inferiority trial: where the main aim is not to improve clinical outcome, but instead to provide evidence of a lack of difference, whilst other issues, such as cost or toxicity, are improved. The interpretation of such trials is not always straightforward. The burden of proof is reversed compared to a traditional superiority trial, and this means that many of the statistical safeguards, such as significance and intention-to-treat, which act as restraints from an overhasty adoption of a new therapy, may actually work in the opposite fashion...
January 20, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28104983/hydrogen-sulfide-attenuates-gastric-mucosal-injury-induced-by-restraint-water-immersion-stress-via-activation-of-katp-channel-and-nf-%C3%AE%C2%BAb-dependent-pathway
#6
Hong-Zhao Sun, Shan Zheng, Kai Lu, Feng-Tian Hou, Jie-Xue Bi, Xue-Lian Liu, Shan-Shan Wang
AIM: To explore the effect of hydrogen sulfide (H2S) on restraint water-immersion stress (RWIS)-induced gastric lesions in rats and the influence of adenosine triphosphate (ATP)-sensitive potassium (KATP) channels and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway on such an effect. METHODS: Male Wistar rats were randomly divided into a control group, a physiological saline (PS) group, a sodium hydrosulfide (NaHS) group, a glibenclamide (Gl) group, Gl plus NaHS group, a pyrrolidine dithiocarbamate (PDTC) group, and a PDTC plus NaHS group...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28104753/the-effect-of-adrenal-medullectomy-on-metabolic-responses-to-chronic-intermittent-hypoxia-in-the-frequently-sampled-intravenous-glucose-tolerance-test
#7
Mi-Kyung Shin, Woobum Han, Hoon Joo, Shannon Bevans-Fonti, Masakazu Shiota, Darko Stefanovski, Vsevolod Y Polotsky
Obstructive sleep apnea is associated with type 2 diabetes. We have previously developed a mouse model of intermittent hypoxia (IH) mimicking oxyhemoglobin desaturations in patients with sleep apnea and have shown that IH increases fasting glucose, hepatic glucose output, and plasma catecholamines. We hypothesize that adrenal medulla modulates glucose responses to IH, and that such responses can be prevented by adrenal medullectomy. We performed adrenal medullectomy or sham surgery in lean C57BL/6J mice, which were exposed to IH or intermittent air (control) for 4 weeks followed by the frequently sampled intravenous glucose tolerance test (FSIVGTT) in unanesthetized unrestrained animals...
January 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28104053/psychiatric-nurses-attitude-and-practice-toward-physical-restraint
#8
Amal Sobhy Mahmoud
AIM: This study was to assess psychiatric nurses' attitude and practice toward physical restraint among mentally ill patients. METHODS: A descriptive research design was used to achieve the study objective. The present study was carried out in three specialized governmental mental hospitals and two psychiatric wards in general hospital. A convenient purposive sample of 96 nurses who were working in the previously mentioned setting was included. The tool used for data collection was the Self-Administered Structured Questionnaire; it included three parts: The first comprised items concerned with demographic characteristics of the nurses, the second comprised 10 item measuring nurses' attitudes toward physical restraint, and the third was used to assess nurses' practices regarding use of physical restraint...
February 2017: Archives of Psychiatric Nursing
https://www.readbyqxmd.com/read/28103871/a-descriptive-survey-study-of-violence-management-and-priorities-among-psychiatric-staff-in-mental-health-services-across-seventeen-european-countries
#9
Seamus Cowman, Anna Björkdahl, Eric Clarke, Georgina Gethin, Jim Maguire
BACKGROUND: In mental health services what is commonplace across international frontiers is that to prevent aggressive patients from harming themselves, other patients or staff, coercive measures and foremost, violence management strategies are required. There is no agreement, recommendations or direction from the EU on which measures of coercion should be practiced across EU countries, and there is no overall one best practice approach. METHODS: The project was conceived through an expert group, the European Violence in Psychiatry Research Group (EViPRG)...
January 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28102701/the-effect-of-pre-crash-velocity-reduction-on-occupant-response-using-a-human-body-finite-element-model
#10
B Guleyupoglu, J Schap, K D Kusano, F S Gayzik
OBJECTIVE: The objective of this study is to use a validated finite element model of the human body and a certified model of an ATD to evaluate the effect of simulated pre-crash braking on driver kinematics, restraint loads, body loads and computed injury criteria in four commonly-injured body regions. METHODS: The Global Human Body Models Consortium (GHBMC) 50th percentile male occupant (M50-O) and the Humanetics Hybrid-III 50(th) percentile models were gravity settled in the driver position of a generic interior equipped with an advanced three point belt and driver airbag...
January 19, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28099505/evaluation-of-6-and-10-year-old-child-human-body-models-in-emergency-events
#11
Laure-Lise Gras, Isabelle Stockman, Karin Brolin
Emergency events can influence a child's kinematics prior to a car-crash, and thus its interaction with the restraint system. Numerical Human Body Models (HBMs) can help understand the behaviour of children in emergency events. The kinematic responses of two child HBMs-MADYMO 6 and 10 year-old models-were evaluated and compared with child volunteers' data during emergency events-braking and steering-with a focus on the forehead and sternum displacements. The response of the 6 year-old HBM was similar to the response of the 10 year-old HBM, however both models had a different response compared with the volunteers...
2017: PloS One
https://www.readbyqxmd.com/read/28099420/addendum-the-rewards-of-restraint-in-the-collective-regulation-of-foraging-by-harvester-ant-colonies
#12
Deborah M Gordon
No abstract text is available yet for this article.
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28098921/-does-less-seclusion-create-a-safer-environment-an-attempt-to-map-the-concept-of-feeling-safe
#13
C J Severs, A J K Hondius, A H Schene
The degree of restraint imposed by a psychiatrist seems to be influenced by the safety of the team. So far, there have been few attempts to map the concept of 'feeling safe'.<br/> AIM: To analyse, define and quantify the concept of 'feeling safe'.<br/> METHOD: Concept mapping involves combining, in a structured way, qualitative (item collection) and quantitative methods (multi-dimensional scaling and hierarchical clusteranalysis) with the knowledge of professionals from psychiatric practice (N=24), first on an individual basis and then as a group (N=8)...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28098628/the-abcdef-bundle-science-and-philosophy-of-how-icu-liberation-serves-patients-and-families
#14
E Wesley Ely
Over the past 20 years, critical care has matured in a myriad of ways resulting in dramatically higher survival rates for our sickest patients. For millions of new survivors comes de novo suffering and disability called "the postintensive care syndrome." Patients with postintensive care syndrome are robbed of their normal cognitive, emotional, and physical capacity and cannot resume their previous life. The ICU Liberation Collaborative is a real-world quality improvement initiative being implemented across 76 ICUs designed to engage strategically the ABCDEF bundle through team- and evidence-based care...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28096898/characteristics-of-adolescents-frequently-restrained-in-acute-psychiatric-units-in-norway-a-nationwide-study
#15
Astrid Furre, Ragnhild Sørum Falk, Leiv Sandvik, Svein Friis, Maria Knutzen, Ketil Hanssen-Bauer
BACKGROUND: The use of restraints in adolescent psychiatric settings requires particular professional, ethical, and legal considerations. The purpose of this study was to investigate whether the number of restraint episodes per patient was related to any of several characteristics of the adolescents. METHODS: In this nationwide study, we included all adolescents restrained during the period 2008-2010 (N = 267) in Norwegian adolescent acute psychiatric inpatient units...
2017: Child and Adolescent Psychiatry and Mental Health
https://www.readbyqxmd.com/read/28096897/the-impact-of-organisational-change-and-fiscal-restraint-on-organisational-culture
#16
Frances Dark, Harvey Whiteford, Neal M Ashkanasy, Carol Harvey, Meredith Harris, David Crompton, Ellie Newman
BACKGROUND: Strategies to implement evidence-based practice have highlighted the bidirectional relationship of organisational change on organisational culture. The present study examined changes in perceptions of organisational culture in two community mental health services implementing cognitive therapies into routine psychosis care over 3 years. During the time of the study there were a number of shared planned and unplanned changes that the mental health services had to accommodate...
2017: International Journal of Mental Health Systems
https://www.readbyqxmd.com/read/28096329/tissue-dual-rna-seq-allows-fast-discovery-of-infection-specific-functions-and-riboregulators-shaping-host-pathogen-transcriptomes
#17
Aaron M Nuss, Michael Beckstette, Maria Pimenova, Carina Schmühl, Wiebke Opitz, Fabio Pisano, Ann Kathrin Heroven, Petra Dersch
Pathogenic bacteria need to rapidly adjust their virulence and fitness program to prevent eradication by the host. So far, underlying adaptation processes that drive pathogenesis have mostly been studied in vitro, neglecting the true complexity of host-induced stimuli acting on the invading pathogen. In this study, we developed an unbiased experimental approach that allows simultaneous monitoring of genome-wide infection-linked transcriptional alterations of the host and colonizing extracellular pathogens. Using this tool for Yersinia pseudotuberculosis-infected lymphatic tissues, we revealed numerous alterations of host transcripts associated with inflammatory and acute-phase responses, coagulative activities, and transition metal ion sequestration, highlighting that the immune response is dominated by infiltrating neutrophils and elicits a mixed TH17/TH1 response...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095911/mistreatment-of-women-during-childbirth-in-abuja-nigeria-a-qualitative-study-on-perceptions-and-experiences-of-women-and-healthcare-providers
#18
Meghan A Bohren, Joshua P Vogel, Özge Tunçalp, Bukola Fawole, Musibau A Titiloye, Akinpelu Olanrewaju Olutayo, Modupe Ogunlade, Agnes A Oyeniran, Olubunmi R Osunsan, Loveth Metiboba, Hadiza A Idris, Francis E Alu, Olufemi T Oladapo, A Metin Gülmezoglu, Michelle J Hindin
BACKGROUND: Global efforts have increased facility-based childbirth, but substantial barriers remain in some settings. In Nigeria, women report that poor provider attitudes influence their use of maternal health services. Evidence also suggests that women in Nigeria may experience mistreatment during childbirth; however, there is limited understanding of how and why mistreatment this occurs. This study uses qualitative methods to explore women and providers' experiences and perceptions of mistreatment during childbirth in two health facilities and catchment areas in Abuja, Nigeria...
January 17, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28095025/the-influence-of-personal-protection-equipment-occupant-body-size-and-restraint-system-on-the-frontal-impact-responses-of-hybrid-iii-atds-in-tactical-vehicles
#19
Lauren Wood Zaseck, Nichole Ritchie Orton, Rebekah Gruber, Jonathan Rupp, Risa Scherer, Matthew Reed, Jingwen Hu
OBJECTIVE: Although advanced restraint systems, such as seatbelt pretensioners, and load limiters, can provide improved occupant protection in crashes, such technologies are currently not utilized in military vehicles. The design and use of military vehicles presents unique challenges to occupant safety - including differences in compartment geometry and occupant clothing and gear - that make direct application of optimal civilian restraint systems to military vehicles inappropriate. For military vehicle environments, finite element (FE) modeling can be used to assess various configurations of restraint systems and determine the optimal configuration that minimizes injury risk to the occupant...
January 17, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28093219/a-mixed-glucocorticoid-mineralocorticoid-receptor-modulator-dampens-endocrine-and-hippocampal-stress-responsivity-in-male-rats
#20
Elizabeth T Nguyen, Joshua Streicher, Sarah Berman, Jody L Caldwell, Valentina Ghisays, Christina M Estrada, Aynara C Wulsin, Matia B Solomon
Aberrant glucocorticoid secretion is implicated in the pathophysiology of stress-related disorders (i.e., depression, anxiety). Glucocorticoids exert biological effects via mineralocorticoid (MR) and glucocorticoid (GR) receptors. Previous data from our laboratory indicate that GR antagonism/modulation (i.e., mifepristone, CORT 108297) regulate endocrine, behavioral, and central stress responses. Because of the dynamic interplay between MR and GR on HPA axis regulation and emotionality, compounds targeting both receptors are of interest for stress-related pathology...
January 13, 2017: Physiology & Behavior
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