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https://www.readbyqxmd.com/read/28645570/quantitative-proteomics-analysis-by-itraq-revealed-underlying-changes-in-thermotolerance-of-arthrospira-platensis
#1
Rong Chang, Bingxin Lv, Bosheng Li
Growth temperature is a critical factor that affects cultivation of Arthrospira platensis which is a type of cyanobacterium widely known as Spirulina that has significant commercial value. To investigate the molecular mechanism underlying the thermotolerance of Spirulina, differential protein expression profiling was carried out using iTRAQ-based quantitative proteomic analysis. This study only analyzed changes in thylakoids. Among the 2085 proteins quantified, 43 differentially expressed proteins were selected based on the fold change cutoff scores of ≥2 or ≤0...
June 20, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28644688/intraosseous-administration-of-antidotes-a-systematic-review
#2
Audrée Elliott, Pierre-André Dubé, Amélie Cossette-Côté, Laura Patakfalvi, Eric Villeneuve, Martin Morris, Sophie Gosselin
CONTEXT: Intraosseous (IO) access is an established route of administration in resuscitation situations. Patients with serious poisoning presenting to the emergency department may require urgent antidote therapy. However, intravenous (IV) access is not always readily available. OBJECTIVE: This study reviews the current evidence for IO administration of antidotes that could be used in poisoning. The primary outcome was mortality as a surrogate of efficacy. Secondary outcomes included hemodynamic variables, electrocardiographic variables, neurological status, pharmacokinetics outcomes, and adverse effects as defined by each article...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28640781/hydrogen-gas-inhalation-inhibits-progression-to-the-irreversible-stage-of-shock-after-severe-hemorrhage-in-rats
#3
Tadashi Matsuoka, Masaru Suzuki, Motoaki Sano, Kei Hayashida, Tomoyoshi Tamura, Koichiro Homma, Keiichi Fukuda, Junichi Sasaki
BACKGROUND: Mortality of hemorrhagic shock primarily depends on whether or not the patients can endure the loss of circulating volume until radical treatment is applied. We investigated whether hydrogen (H2) gas inhalation would influence the tolerance to hemorrhagic shock and improve survival. METHODS: Hemorrhagic shock was achieved by withdrawing blood until the mean arterial blood pressure reached 30-35 mmHg. After 60 minutes of shock, the rats were resuscitated with a volume of normal saline equal to four times the volume of shed blood...
June 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28640137/china-s-growing-contribution-to-sepsis-research-from-1984-to-2014-a-bibliometric-study
#4
Kai Zhang, Jialian Zhao, Lihua Chu, Yue Jin, Baoli Cheng, Guohao Xie, Yan Wang, Xiangming Fang
BACKGROUND: The aim of this study was to analyze the global trends of sepsis research and investigate China's contribution by comparing the quantity and quality of sepsis-related publications. METHODS: Sepsis-related publications were main retrieved from the Web of Science online database by using the keywords "sepsis" or "septic shock." Bibliometric indicators, including the number of publications, total citation frequency, citation frequency per paper, h-index, research type, orientation, organization, author, journal, and funding support were analyzed...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639163/agr-functionality-affects-clinical-outcomes-in-patients-with-persistent-methicillin-resistant-staphylococcus-aureus-bacteraemia
#5
C K Kang, Y K Kim, S-I Jung, W B Park, K-H Song, K-H Park, P G Choe, H-C Jang, S Lee, Y-S Kim, Y G Kwak, K T Kwon, S Kiem, C-J Kim, E S Kim, H B Kim
Methicillin-resistant Staphylococcus aureus bacteremia (MRSAB) often persists despite appropriate antibiotic therapy. It is unclear what microbiological factors contribute to poor clinical outcomes in persistent MRSAB (pMRSAB). We aimed to identify clinical and microbiological risk factors for in-hospital mortality in pMRSAB. We analysed MRSAB cases prospectively collected between 2009 and 2016 at 11 hospitals in Korea, defining cases of pMRSAB as MRSAB lasting ≥5 days despite administration of effective antibiotics...
June 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28638939/-consequences-of-autopsies-for-the-living-causes-of-death-in-the-clinical-diagnosis-septic-and-toxic-shock
#6
REVIEW
L Ozretić, A Schwindowski, H-P Dienes, R Büttner, U Drebber, J W U Fries
BACKGROUND: There is reason to believe that the diagnosis of septic and toxic shock, as indicated on the death certificate, cannot be confirmed as the cause of death without autopsy and subsequent histological analysis. The external examination of the corpse can therefore not represent the sole basis for a reliable statement about the infection status of a corpse, e. g. as a prerequisite for embalming. MATERIAL AND METHODS: The validity of autopsy in determining septic and toxic shock as the cause of death is demonstrated in 7 exemplary cases...
June 21, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28638715/rat-intersubjective-decisions-are-encoded-by-frequency-specific-oscillatory-contexts
#7
Jana Schaich Borg, Sanvesh Srivastava, Lizhen Lin, Joseph Heffner, David Dunson, Kafui Dzirasa, Luis de Lecea
INTRODUCTION: It is unknown how the brain coordinates decisions to withstand personal costs in order to prevent other individuals' distress. Here we test whether local field potential (LFP) oscillations between brain regions create "neural contexts" that select specific brain functions and encode the outcomes of these types of intersubjective decisions. METHODS: Rats participated in an "Intersubjective Avoidance Test" (IAT) that tested rats' willingness to enter an innately aversive chamber to prevent another rat from getting shocked...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28633808/impact-of-mr-guided-boiling-histotripsy-in-distinct-murine-tumor-models
#8
Martijn Hoogenboom, Dylan C Eikelenboom, Renske J E van den Bijgaart, Arend Heerschap, Pieter Wesseling, Martijn H den Brok, Jurgen J Fütterer, Gosse J Adema
Interest in mechanical high intensity focused ultrasound (HIFU) ablation is rapidly growing. Boiling histotripsy (BH) is applied for mechanical fragmentation of soft tissue into submicron fragments with limited temperature increase using the shock wave and cavitation effects of HIFU. Research on BH has been largely limited to ex vivo experiments. As a consequence, the in vivo pathology after BH treatment and the relation to preexistent tissue characteristics are not well understood. This study reports on in vivo MR guided BH treatment, either with 100 or 200 pulses per focal spot, in three different subcutaneous mouse tumor models: a soft-tissue melanoma (B16OVA), a compact growing thymoma (EL4), and a highly vascularized neuroblastoma (9464D)...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28632657/role-of-computed-tomography-in-the-classification-of-pediatric-pelvic-fractures-revisited
#9
Melissa A Bent, William L Hennrikus, Johan E Latorre, Douglas G Armstrong, Brian Shaw, Kerwyn C Jones, Lee S Segal
OBJECTIVES: To determine the need for computerized tomography (CT) scans in the assessment of pediatric pelvic fractures. DESIGN: Retrospective Chart Review. SETTING: Level-1 Pediatric Trauma Center. PATIENTS/PARTICIPANTS: Thirty pediatric trauma patients with pelvic fractures who have obtained both a radiograph and CT scan. MAIN OUTCOME MEASUREMENTS: Fleiss Kappa coefficient to compare interreliability...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632581/multicenter-retrospective-study-of-noncompressible-torso-hemorrhage-anatomic-locations-of-bleeding-and-comparison-of-endovascular-versus-open-approach
#10
Ronald Chang, Erin E Fox, Thomas J Greene, Brian J Eastridge, Ramyar Gilani, Kevin K Chung, Stacia M DeSantis, Joseph J DuBose, Jeffrey S Tomasek, Gerald R Fortuna, Valerie G Sams, S Rob Todd, Jeanette M Podbielski, Charles E Wade, John B Holcomb
BACKGROUND: Rational development of technology for rapid control of noncompressible torso hemorrhage (NCTH) requires detailed understanding of what is bleeding. Our objectives were to describe the anatomic location of truncal bleeding in patients presenting with NCTH and compare endovascular (ENDO) management versus open (OPEN) management. METHODS: This is a retrospective study of adult trauma patients with NCTH admitted to four urban Level I trauma centers in the Houston and San Antonio metropolitan areas in 2008 to 2012...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28631886/nlrp3-expression-and-urinary-hsp72-in-relation-to-biomarkers-of-inflammation-and-oxidative-stress-in-diabetic-nephropathy-patients
#11
Hemat El-Sayed El-Horany, Rania Nagi Abd-Ellatif, Mona Watany, Yasser M Hafez, Hanaa Ibrahim Okda
Diabetic nephropathy (DN) is one of the major causes of end-stage renal disease. Nod-like receptors nucleotide-binding domain and leucine-rich repeat pyrin-3 domain (NLRP3) inflammasome displays a considerable role in the chronic inflammatory state observed in diabetic patients. Urinary heat shock protein 72 (uHSP72) is a sensitive and specific biomarker for the early detection of acute kidney injury. The aim of this study was to evaluate NLRP3 relative gene expression, its correlation with inflammatory and oxidative stress markers, and to assess the value of uHSP72 in the early detection of DN in type 2 diabetic patients with different degrees of DN...
June 20, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28630139/functional-interfaces-between-ticam-2-tram-and-ticam-1-trif-in-tlr4-signaling
#12
REVIEW
Kenji Funami, Misako Matsumoto, Hiroyuki Oshiumi, Fuyuhiko Inagaki, Tsukasa Seya
Toll-like receptor 4 (TLR4) recognizes lipopolysaccharide (LPS), produces pro-inflammatory cytokines and type I interferons, and associates with a trigger of endotoxin shock. TLR4 is interacted with a TIR domain-containing adaptor molecule-2 (TICAM-2)/TRAM [TRIF (TIR domain-containing adaptor-inducing interferon-β)-related adaptor molecule] via its Toll-interleukin-1 receptor homology (TIR) domain. TICAM-2 acts as a scaffold protein and activates TIR domain-containing adaptor molecule-1 (TICAM-1)/TRIF. According to the structural analysis by NMR, TICAM-2 interacts with TICAM-1 by the acidic amino acids motif, E87/D88/D89...
June 19, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28630061/increased-resistance-to-intradermal-francisella-tularensis-lvs-infection-by-inactivation-of-the-sts-phosphatases
#13
Kaustubh Parashar, Erik Kopping, David Frank, Vinaya Sampath, David G Thanassi, Nick Carpino
The Suppressor of TCR signaling proteins (Sts-1 and Sts-2) are two homologous phosphatases that negatively regulate signaling pathways in a number of hematopoietic lineages, including T lymphocytes. Mice lacking Sts expression are characterized by enhanced T cell responses. Additionally, a recent study demonstrated that Sts-/- mice are profoundly resistant to systemic infection of Candida albicans, with resistance characterized by enhanced survival, more rapid fungal clearance in key peripheral organs, and an altered inflammatory response...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28627592/triptolide-exerts-protective-effects-against-fibrosis-following-ileocolonic-anastomosis-by-mechanisms-involving-the-mir-16-1-hsp70-pathway-in-il-10-deficient-mice
#14
Hong-Wei Hou, Jin-Min Wang, Dong Wang, Rong Wu, Zhen-Ling Ji
Surgeries, particularly ileocecal resection (ICR), are often required in the treatment of Crohn's disease (CD). However, recurrences are common for patients who undergo ICR, and anastomotic fibrosis is the main cause of re-operation. The present study aimed to investigate the therapeutic effects of triptolide (TPL) in ameliorating fibrosis following ileocolonic anastomosis. A model of IL‑10‑/‑ mice undergoing ICR was used to study postsurgical inflammation and fibrosis of anastomosis. For this purpsose, interleukin (IL)‑10‑/‑ mice were randomly divided into 3 groups as follows: the control group, the saline‑treated group subjected to ICR (ST‑ICR) and the TPL‑treated group subjected to ICR (TT‑ICR)...
June 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28622347/rna-guided-transcriptional-activation-via-crispr-dcas9-mimics-overexpression-phenotypes-in-arabidopsis
#15
Jong-Jin Park, Emma Dempewolf, Wenzheng Zhang, Zeng-Yu Wang
Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR associated protein 9 (Cas9) system allows effective gene modification through RNA-guided DNA targeting. The Cas9 has undergone a series of functional alterations from the original active endonuclease to partially or completely deactivated Cas9. The catalytically deactivated Cas9 (dCas9) offers a platform to regulate transcriptional expression with the addition of activator or repressor domains. We redesigned a CRISPR/Cas9 activation system by adding the p65 transactivating subunit of NF-kappa B and a heat-shock factor 1 (HSF) activation domain to dCas9 bound with the VP64 (tetramer of VP16) activation domain for application in plants...
2017: PloS One
https://www.readbyqxmd.com/read/28620552/refractory-lactic-acidosis-in-small-cell-carcinoma-of-the-lung
#16
Daniel J Oh, Ellen Dinerman, Andrew H Matthews, Abraham W Aron, Katherine M Berg
BACKGROUND: Elevated lactate levels in critically ill patients are most often thought to be indicative of relative tissue hypoxia or type A lactic acidosis. Shock, severe anemia, and thromboembolic events can all cause elevated lactate due to tissue hypoperfusion, as well as the mitochondrial dysfunction thought to occur in sepsis and other critically ill states. Malignancy can also lead to elevation in lactate, a phenomenon described as type B lactic acidosis, which is much less commonly encountered in the critically ill...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28618624/delayed-bet-hedging-resilience-strategies-under-environmental-fluctuations
#17
Masaki Ogura, Masashi Wakaiki, Harvey Rubin, Victor M Preciado
Many biological populations, such as bacterial colonies, have developed through evolution a protection mechanism, called bet hedging, to increase their probability of survival under stressful environmental fluctuation. In this context, the concept of preadaptation refers to a common type of bet-hedging protection strategy in which a relatively small number of individuals in a population stochastically switch their phenotypes to a dormant metabolic state in which they increase their probability of survival against potential environmental shocks...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28617889/erdheim-chester-disease-presenting-with-histiocytic-colitis-and-cytokine-storm
#18
George P Christophi, Yeshika Sharma, Quader Farhan, Umang Jain, Ted Walker, Gregory S Sayuc, Deborah C Rubin
BACKGROUND: Non-Langerhans histiocytosis is a group of inflammatory lymphoproliferative disorders originating from non-clonal expansion of hematopoietic stem cells into cytokine-secreting dendritic cells or macrophages. Erdheim-Chester Disease (ECD) is a rare type of non-Langerhans cell histiocytosis characterized by tissue inflammation and injury caused by macrophage infiltration and histologic findings of foamy histiocytes. Often ECD involves the skeleton, retroperitoneum and the orbits...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28617330/identification-of-pathogenic-factors-in-klebsiella-pneumoniae-using-impedimetric-sensor-equipped-with-biomimetic-surfaces
#19
Duyen Thi Ngoc Huynh, Ah-Young Kim, Young-Rok Kim
K.pneumoniae is an opportunistic pathogen that causes nosocomial infections, such as, pneumonia, urinary tract infections, septic shock, and gastro intestinal disease. Lipopolysaccharide (LPS), capsular polysaccharide, and fimbriae are recognized major virulence factors of K.pneumoniae and play key roles during early stages of infections. In this study, we functionalized the surface of gold electrode with mannose and mucin to monitor the adhesion-associated virulence factors of K.pneumoniae. The binding characteristics of K...
June 15, 2017: Sensors
https://www.readbyqxmd.com/read/28613115/contribution-of-phosphatidylserine-to-rho1-and-pkc1-related-repolarization-of-the-actin-cytoskeleton-under-stressed-conditions-in-saccharomyces-cerevisiae
#20
Wataru Nomura, Yoshiharu Inoue
The budding yeast Saccharomyces cerevisiae undergoes polarized cell growth, which is established in association with actin polarization. Rho1, one of the Rho-type GTPases in S. cerevisiae, is crucial for maintaining polarized cell growth and actin polarization and controlling the downstream signaling pathway, the Pkc1-Mpk1 MAP kinase cascade, through a physical interaction with Pkc1, the sole protein kinase C in this yeast. The Pkc1-Mpk1 MAP kinase cascade is important for the repolarization of actin under heat shock-stressed conditions...
June 14, 2017: Small GTPases
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