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Shock—Etiology

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https://www.readbyqxmd.com/read/28550532/drug-induced-hsp90-inhibition-alleviates-pain-in-monoarthritic-rats-and-alters-the-expression-of-new-putative-pain-players-at-the-drg
#1
Diana Sofia Marques Nascimento, Catarina Soares Potes, Miguel Luz Soares, António Carlos Ferreira, Marzia Malcangio, José Manuel Castro-Lopes, Fani Lourença Moreira Neto
Purinergic receptors (P2XRs) have been widely associated with pain states mostly due to their involvement in neuron-glia communication. Interestingly, we have previously shown that satellite glial cells (SGC), surrounding dorsal root ganglia (DRG) neurons, become activated and proliferate during monoarthritis (MA) in the rat. Here, we demonstrate that P2X7R expression increases in ipsilateral DRG after 1 week of disease, while P2X3R immunoreactivity decreases. We have also reported a significant induction of the activating transcriptional factor 3 (ATF3) in MA...
May 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28550443/timing-to-antibiotic-therapy-in-septic-oncologic-patients-presenting-without-hypotension
#2
Kathleen Morneau, Gary B Chisholm, Frank Tverdek, Jeffrey Bruno, Katy M Toale
PURPOSE: Sepsis accounts for only 2% of the hospitalizations worldwide but more than 17% of total in-hospital mortality. Inappropriate antimicrobial selection and delays in appropriate therapy have been associated with reduced survival in severe sepsis and septic shock. No studies to date have exclusively targeted septic oncologic patients without hypotension. METHODS: This study was a retrospective chart review of 100 adult cancer patients presenting to the emergency department with sepsis without hypotension...
May 26, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28550365/a-longitudinal-study-of-neurotrophic-oxidative-and-inflammatory-markers-in-first-onset-depression-in-midlife-women
#3
Matheus A Pasquali, Bernard L Harlow, Claudio N Soares, Michael W Otto, Lee S Cohen, Luciano Minuzzi, Daniel P Gelain, Jose Claudio F Moreira, Benicio N Frey
Prospective studies have shown during the years preceding and following menopause, also known as "menopause transition", that midlife women are at higher risk for developing first-onset major depressive disorder (MDD). The biological factors associated with risk and resilience in this population are, however, largely unknown. Considering the growing body of evidence suggesting that inflammation, oxidative stress, and brain-derived neurotrophic factor (BDNF) are associated with the pathophysiology of MDD, we investigated serum levels of protein carbonyl, lipid peroxidation (thiobarbituric acid reactive substances-TBARS), thiol group content, BDNF, 3-nitrotyrosine, and heat shock protein 70 (HSP70) in a longitudinal cohort of first-onset MDD...
May 26, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28550115/involvement-of-cell-surface-90-kda-heat-shock-protein-hsp90-in-pattern-recognition-by-human-monocyte-derived-macrophages
#4
Małgorzata Bzowska, Anna Nogieć, Krystian Bania, Magdalena Zygmunt, Mirosław Zarębski, Jerzy Dobrucki, Krzysztof Guzik
Heat shock proteins (HSPs) are typical intracellular chaperones which also appear on the cell surface and in extracellular milieu. HSP90, which chaperones many proteins involved in signal transduction, is also a regular component of LPS-signaling complexes on Mϕ. As LPS is a prototypical PAMP, we speculated that HSP90 is engaged in pattern recognition by professional phagocytes. In this report, we provide the first evidence, to our knowledge, of the geldanamycin (Ge)-inhibitable HSP90 on the surface of live monocyte-derived Mϕs (hMDMs)...
May 26, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28550056/biofilm-formation-potential-of-heat-resistant-escherichia-coli-dairy-isolates-and-complete-genome-of-mdr-heat-resistant-strain-fam21845
#5
Roger Marti, Michael Schmid, Sandra Kulli, Kerstin Schneeberger, Javorka Naskova, Susanne Knøchel, Christian H Ahrens, Jörg Hummerjohann
We tested the biofilm formation potential of 30 heat resistant and six heat sensitive E. coli dairy isolates. The production of curli and cellulose, static biofilm formation on polystyrene (PS) and stainless steel, formation of biofilm under dynamic conditions (Bioflux), and initial adhesion rates (IAR) were evaluated. Biofilm formation varied greatly between strains, media and assay. Our results highlight the importance of the experimental setup to determine biofilm formation under conditions of interest, as correlation between different assays was often not given...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28549987/spontaneous-heterotopic-triplets-a-review-of-literature
#6
REVIEW
Pauline Bataille, Augustin Reynard, Guillaume Ducarme
OBJECTIVE: Spontaneous heterotopic triplets, a tubal ectopic pregnancy and a twin pregnancy, are rare disorders. The study aimed to examine all available evidence regarding signs and symptoms, imaging findings, management and newborn outcome of spontaneous heterotopic triplets. DESIGN: A literature search in Medline and EMBASE databases from 2000 to 2016 was conducted. The following key words were employed: 'spontaneous heterotopic pregnancy', OR 'heterotopic triplets'...
May 23, 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28549777/p32-is-required-for-appropriate-interleukin-6-production-upon-lps-stimulation-and-protects-mice-from-endotoxin-shock
#7
Katsuhiko Sasaki, Kazuhito Gotoh, Sho Miake, Daiki Setoyama, Mikako Yagi, Ko Igami, Takeshi Uchiumi, Donchon Kang
Sepsis is a major cause of morbidity and mortality in seriously ill patients and mitochondrial dysfunction is associated with poor outcomes in septic patients. Although interleukin-6 (IL-6) is a good prognostic marker for sepsis, the relationship between mitochondrial dysfunction and IL-6 remains poorly understood. We identified p32/C1QBP/HABP1 as a regulator of IL-6 production in response to lipopolysaccharide (LPS). LPS induced IL-6 overproduction in p32 deficient mouse embryonic fibroblasts (MEFs) through NF-κB independent but activating transcription factor (ATF) 4 dependent pathways...
May 11, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28549691/27-hydroxycholesterol-upregulates-the-production-of-heat-shock-protein-60-of-monocytic-cells
#8
Bo-Young Kim, Yonghae Son, Jeongyoon Choi, Seong-Kug Eo, Young Chul Park, Koanhoi Kim
Investigating differentially expressed proteins in a milieu rich in cholesterol oxidation products, we found via mass spectrometry-based proteomics that surface levels of heat shock protein 60 (HSP60) were upregulated on monocytic cells in the presence of 27-hydroxycholesterol (27OHChol). The elevated levels of cytoplasmic membrane HSP60 were verified via Western blot analysis and visualized by confocal microscopy. Treatment with 27OHChol also resulted in increased levels of cellular HSP60 without altering its transcription...
May 23, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28549024/the-epidemiology-of-hospital-death-following-pediatric-severe-sepsis-when-why-and-how-children-with-sepsis-die
#9
Scott L Weiss, Fran Balamuth, Josey Hensley, Julie C Fitzgerald, Jenny Bush, Vinay M Nadkarni, Neal J Thomas, Mark Hall, Jennifer Muszynski
OBJECTIVE: The epidemiology of in-hospital death after pediatric sepsis has not been well characterized. We investigated the timing, cause, mode, and attribution of death in children with severe sepsis, hypothesizing that refractory shock leading to early death is rare in the current era. DESIGN: Retrospective observational study. SETTING: Emergency departments and ICUs at two academic children's hospitals. PATIENTS: Seventy-nine patients less than 18 years old treated for severe sepsis/septic shock in 2012-2013 who died prior to hospital discharge...
May 25, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28548614/after-suicide-coming-together-in-kindness-and-support
#10
Ronnie Susan Walker
This article is a personal narrative by Ronnie Walker, MS, LCPC about the suicide of her step-son, Channing, in 1995. It describes the particular journey of shock, despair, disorientation, guilt and anger that Walker began after the death. It also describes the remarkable personal growth and restoration of meaning that emerged for the author as she began what is now the largest online community of suicide loss survivors in the world, the Alliance of Hope ( www.allianceofhope.org ). The article also provides numerous examples of the power of supportive community in helping survivors of suicide loss to not only cope, but to demonstrate post-traumatic growth after the suicide of a loved one...
May 26, 2017: Death Studies
https://www.readbyqxmd.com/read/28548523/strength-and-viscosity-effects-on-perturbed-shock-front-stability-in-metals
#11
S Opie, E Loomis, P Peralta, T Shimada, R P Johnson
Computational modeling and experimental measurements on metal samples subject to a laser-driven, ablative Richtmyer-Meshkov instability showed differences between viscosity and strength effects. In particular, numerical and analytical solutions, coupled with measurements of fed-through perturbations, generated by perturbed shock fronts onto initially flat surfaces, show promise as a validation method for models of deviatoric response in the postshocked material. Analysis shows that measurements of shock perturbation amplitudes at low sample thickness-to-wavelength ratios are not enough to differentiate between strength and viscosity effects, but that surface displacement data of the fed-through perturbations appears to resolve the ambiguity...
May 12, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28548199/-acute-small-bowel-diverticulitis-in-a-patient-with-crohn%C3%A2-s-disease
#12
Macarena Hevia, Rodrigo Quera, Leonardo Soto, Tomás Regueira, Andrés O'Brien, Andrés Larach, Udo Kronberg
Diverticular disease of the small intestine is rare, especially when it is located in the jejunum. It is generally asymptomatic, but in some patients it may have complications such as acute diverticulitis with peritonitis, gastrointestinal bleeding or obstruction. In such cases, the recommended treatment is surgery. We report a 77-year-old patient with ileal Crohn’s disease with a long-standing inflammatory phenotype, who developed acute diverticulitis of the jejunum presenting a severe septic shock and secondary multiple-organ failure...
March 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28548083/atomic-scale-age-resolution-of-planetary-events
#13
L F White, J R Darling, D E Moser, D A Reinhard, T J Prosa, D Bullen, D Olson, D J Larson, D Lawrence, I Martin
Resolving the timing of crustal processes and meteorite impact events is central to understanding the formation, evolution and habitability of planetary bodies. However, identifying multi-stage events from complex planetary materials is highly challenging at the length scales of current isotopic techniques. Here we show that accurate U-Pb isotopic analysis of nanoscale domains of baddeleyite can be achieved by atom probe tomography. Within individual crystals of highly shocked baddeleyite from the Sudbury impact structure, three discrete nanostructural domains have been isolated yielding average (206)Pb/(238)U ages of 2,436±94 Ma (protolith crystallization) from homogenous-Fe domains, 1,852±45 Ma (impact) from clustered-Fe domains and 1,412±56 Ma (tectonic metamorphism) from planar and subgrain boundary structures...
May 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28547731/proline-isomerization-in-the-c-terminal-region-of-hsp27
#14
T Reid Alderson, Justin L P Benesch, Andrew J Baldwin
In mammals, small heat-shock proteins (sHSPs) typically assemble into interconverting, polydisperse oligomers. The dynamic exchange of sHSP oligomers is regulated, at least in part, by molecular interactions between the α-crystallin domain and the C-terminal region (CTR). Here we report solution-state nuclear magnetic resonance (NMR) spectroscopy investigations of the conformation and dynamics of the disordered and flexible CTR of human HSP27, a systemically expressed sHSP. We observed multiple NMR signals for residues in the vicinity of proline 194, and we determined that, while all observed forms are highly disordered, the extra resonances arise from cis-trans peptidyl-prolyl isomerization about the G193-P194 peptide bond...
May 25, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28547133/hsf1-acetylation-decreases-its-transcriptional-activity-and-enhances-glucolipotoxicity-induced-apoptosis-in-rat-and-human-beta-cells
#15
Indri Purwana, Jun J Liu, Bernard Portha, Jean Buteau
AIMS/HYPOTHESIS: Heat shock factor protein 1 (HSF1) is a transcription factor that regulates the expression of key molecular chaperones, thereby orchestrating the cellular response to stress. This system was recently implicated in the control of insulin sensitivity and is therefore being scrutinised as a novel therapeutic avenue for type 2 diabetes. However, the regulation and biological actions of HSF1 in beta cells remain elusive. Herein, we sought to investigate the regulation of HSF1 in pancreatic beta cells and to study its potential role in cell survival...
May 25, 2017: Diabetologia
https://www.readbyqxmd.com/read/28546861/association-between-recurrence-of-acute-kidney-injury-and-mortality-in-intensive-care-unit-patients-with-severe-sepsis
#16
Emilio Rodrigo, Borja Suberviola, Miguel Santibáñez, Lara Belmar, Álvaro Castellanos, Milagros Heras, Juan Carlos Rodríguez-Borregán, Angel Luis Martín de Francisco, Claudio Ronco
BACKGROUND: Acute kidney injury (AKI) occurs in more than half critically ill patients admitted in intensive care units (ICU) and increases the mortality risk. The main cause of AKI in ICU is sepsis. AKI severity and other related variables such as recurrence of AKI episodes may influence mortality risk. While AKI recurrence after hospital discharge has been recently related to an increased risk of mortality, little is known about the rate and consequences of AKI recurrence during the ICU stay...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28546825/efficient-isolation-of-magnolia-protoplasts-and-the-application-to-subcellular-localization-of-mdehsf1
#17
Yamei Shen, Dong Meng, Kim McGrouther, Junhong Zhang, Lailiang Cheng
BACKGROUND: Magnolia is a woody ornamental plant, which is widely used in urban landscaping. However, its lengthy juvenile period and recalcitrance to regeneration impedes functional characterization of its genes. RESULTS: We developed an efficient protoplast isolation and transient expression system for Magnolia denudata × Magnolia acuminata 'Yellow River'. The highest yield of protoplasts was obtained from young leaves digested in 3% Cellulase R10, 0.8% Macerozyme R10, 0...
2017: Plant Methods
https://www.readbyqxmd.com/read/28546219/inos-derived-nitric-oxide-induces-integrin-linked-kinase-endocytic-lysosome-mediated-degradation-in-the-vascular-endothelium
#18
Paula Reventun, Matilde Alique, Irene Cuadrado, Susana Marquez, Rocio Toro, Carlos Zaragoza, Marta Saura
OBJECTIVE: ILK (integrin-linked kinase) plays a key role in controlling vasomotor tone and is decreased in atherosclerosis. The objective of this study is to test whether nitric oxide (NO) regulates ILK in vascular remodeling. APPROACH AND RESULTS: We found a striking correlation between increased levels of inducible nitric oxide and decreased ILK levels in human atherosclerosis and in a mouse model of vascular remodeling (carotid artery ligation) comparing with inducible NO synthase knockout mice...
May 25, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28546207/jupiter-s-magnetosphere-and-aurorae-observed-by-the-juno-spacecraft-during-its-first-polar-orbits
#19
J E P Connerney, A Adriani, F Allegrini, F Bagenal, S J Bolton, B Bonfond, S W H Cowley, J-C Gerard, G R Gladstone, D Grodent, G Hospodarsky, J L Jorgensen, W S Kurth, S M Levin, B Mauk, D J McComas, A Mura, C Paranicas, E J Smith, R M Thorne, P Valek, J Waite
The Juno spacecraft acquired direct observations of the jovian magnetosphere and auroral emissions from a vantage point above the poles. Juno's capture orbit spanned the jovian magnetosphere from bow shock to the planet, providing magnetic field, charged particle, and wave phenomena context for Juno's passage over the poles and traverse of Jupiter's hazardous inner radiation belts. Juno's energetic particle and plasma detectors measured electrons precipitating in the polar regions, exciting intense aurorae, observed simultaneously by the ultraviolet and infrared imaging spectrographs...
May 26, 2017: Science
https://www.readbyqxmd.com/read/28546088/extracorporeal-shock-wave-lithotripsy-management-of-renal-stones-in-children-does-anesthesia-affect-the-treatment-outcomes-on-an-age-based-manner
#20
Murat Tuncer, Banu Çevik, Bilal Eryıldırım, Gökhan Faydacı, Kemal Sarıca
OBJECTIVE: To evaluate beneficial effect of anaesthesia on extracorporeal shock wave lithotripsy (SWL) in children older than nine years. PATIENTS AND METHODS: A total of 61 children (aging between 9-17 years) treated with SWL for renal stones were included. Depending on the use of general anesthesia, children were divided into two groups; (Group 1, n=27) Cases treated with SWL under anesthesia and (Group 2, n=34) SWL without anesthesia. Patients in both groups were comparatively evaluated with respect to treatment related (stone size, stone laterality, stone location, mean number of sessions, mean number of shock waves applied, residual fragments size, stone free rate (SFR), clinically significant residual fragment complications and need of additional intervention) parameters...
May 22, 2017: Urology
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