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Treatment of Shock

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https://www.readbyqxmd.com/read/27913992/c-type-natriuretic-peptide-prevents-kidney-injury-and-attenuates-oxidative-and-inflammatory-responses-in-hemorrhagic-shock
#1
Gan Chen, Xiang Song, Yujing Yin, Sha Xia, Qingjun Liu, Guoxing You, Lian Zhao, Hong Zhou
Oxidative stress induced by hemorrhagic shock (HS) initiates a systemic inflammatory response, which leads to subsequent kidney injury. This study assessed the efficacy of c-type natriuretic peptide (CNP) in attenuating kidney injury in a rat model of hemorrhagic shock and resuscitation (HS/R). Sodium pentobarbital-anesthetized adult male Wistar rats underwent HS induced by the withdrawal of blood to a mean arterial pressure of 30-35 mmHg for 50 min. Then, the animals received CNP (25 μg/kg) or vehicle (saline) intravenously, followed byresuscitation with 1...
December 2, 2016: Amino Acids
https://www.readbyqxmd.com/read/27913508/risk-stratification-and-management-of-acute-pulmonary-embolism
#2
Cecilia Becattini, Giancarlo Agnelli
The clinical management of patients with acute pulmonary embolism is rapidly changing over the years. The widening spectrum of clinical management strategies for these patients requires effective tools for risk stratification. Patients at low risk for death could be candidates for home treatment or early discharge. Clinical models with high negative predictive value have been validated that could be used to select patients at low risk for death. In a major study and in several meta-analyses, thrombolysis in hemodynamically stable patients was associated with unacceptably high risk for major bleeding complications or intracranial hemorrhage...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913213/enhanced-efficacy-of-combination-heat-shock-targeted-polymer-therapeutics-with-high-intensity-focused-ultrasound
#3
Nick Frazier, Allison Payne, Christopher Dillon, Nithya Subrahmanyam, Hamidreza Ghandehari
Combination of polymer therapeutics and hyperthermia has been shown to enhance accumulation in selectively heated tumor tissue. The additional use of heat shock (HS)-targeting towards tumor tissues can further enhance accumulation and retention, and improve therapeutic outcomes. In this work, high intensity focused ultrasound (HIFU) was used to generate hyperthermia in prostate tumor tissue. Upregulation of the cell surface HS receptor glucose regulated protein 78kDa (GRP78) was observed after treatment with HIFU hyperthermia which was then targeted by specific HS-targeting peptides...
November 29, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27913182/virtual-screening-and-biophysical-studies-lead-to-hsp90-inhibitors
#4
Renjie Huang, Daniel M Ayine-Tora, M Nasri Muhammad Rosdi, Yu Li, Jóhannes Reynisson, Ivanhoe K H Leung
Heat shock protein 90 (HSP90) is a molecular chaperone that plays important functional roles in cells. The chaperone activity of HSP90 is regulated by the hydrolysis of ATP at the protein's N-terminal domain. HSP90, in particular the N-terminal domain, is a current inhibition target for therapeutic treatments of cancers. This paper describes an application of virtual screening, thermal shift assaying and protein NMR spectroscopy leading to the discovery of HSP90 inhibitors that contain the resorcinol structure...
November 23, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27912961/the-effect-of-chinese-herbal-medicine-on-hemorrhagic-shock-a-systematic-review-and-meta-analysis
#5
REVIEW
Da-Long Wang, Xiao-Guang Lu, Wen-Xiu Guo, Tuo Chen, Yi Song, Zhi-Wei Fan
BACKGROUND: Chinese herbal medicine (CHM) has been widely used in the treatment of hemorrhagic shock (HS) in China. Many controlled trials have been undertaken to investigate its efficacy. OBJECTIVE: To evaluate the effectiveness and safety of CHM for Hemorrhagic Shock patients. METHODS: We screening the Web of ScienceDirect database, PubMed, the Cochrane Library, EMBASE, China Biomedical Database web (CBM), China National Knowledge Infrastructure (CNKI) and WanFang database (WF), from inception to January 2015...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27911457/what-is-the-impact-of-extracorporeal-shock-wave-lithotripsy-on-semen-parameters-a-systematic-review-and-meta-analysis
#6
Mohammad H Radfar, Nasser Simforoosh, Mehdi Sotoudeh, Mehdi H Ramezani, Mohammad J Mollakoochakian, Maryam Nikravesh, Hamidreza Shemshaki
BACKGROUND: Extracorporeal shock wave lithotripsy (ESWL) is an important tool for the management of urolithiasis. The effects of shockwaves on tissues are established. The aim of this meta-analysis is to evaluate the microscopic semen characteristics of young men before and after ESWL treatment for lower ureteral calculi. METHODS: Literature searches were performed following the Cochrane guidelines. We conducted a systematic review and meta-analysis that included six trials that investigated the effects of ESWL on semen parameters, including sperm concentration, motility, and hematospermia...
December 2, 2016: Urologia
https://www.readbyqxmd.com/read/27909469/value-of-the-wearable-cardioverter-defibrillator-wcd-as-a-bridging-therapy-before-implantation-of-a-cardioverter-defibrillator-icd
#7
REVIEW
Priv- Doz, Dr Johannes Sperzel
Wearable cardioverter defibrillators (WCD), initially available in 2002, have recently experienced more routine use in many institutions as a means of preventing sudden cardiac death (SCD) prior to implantable cardioverter defibrillator (ICD) evaluation or implantation. WCD differ from ICD by their noninvasive nature, making them well suited for patient populations who have a chance for significant cardiac recovery (such as after an acute myocardial infarction). Despite their noninvasive nature, WCD treatment of sustained ventricular tachyarrhythmias is highly successful...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909289/hyperthermia-enhances-17-dmag-efficacy-in-hepatocellular-carcinoma-cells-with-aggravated-dna-damage-and-impaired-g2-m-transition
#8
Zhizhou Huang, Xueqiong Zhou, Yangfan He, Xiangyu Ke, Ying Wen, Fei Zou, Xuemei Chen
Due to the lack of effective treatment, hepatocellular carcinoma (HCC) is one of the malignancies with low survival rates worldwide. Combination of hyperthermia and chemotherapy has shown promising results in several abdominal tumours, but high expression of HSP90 in tumours attenuated the efficacy of hyperthermia. Thus a combination of hyperthermia and inhibition of HSP90 might be a feasible therapeutic strategy for HCC. One hepatic cell line (L02) and two HCC cell lines (Huh7 and HepG2) were heated at 42 °C for 0, 0...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908524/genetic-correlation-between-alcohol-preference-and-conditioned-fear-exploring-a-functional-relationship
#9
Julia A Chester, Marcus M Weera
Post-traumatic stress disorder (PTSD) and alcohol-use disorders have a high rate of co-occurrence, possibly because they are regulated by common genes. In support of this idea, mice selectively bred for high (HAP) alcohol preference show greater fear potentiated startle (FPS), a model for fear-related disorders such as PTSD, compared to mice selectively bred for low (LAP) alcohol preference. This positive genetic correlation between alcohol preference and FPS behavior suggests that the two traits may be functionally related...
November 23, 2016: Alcohol
https://www.readbyqxmd.com/read/27908440/lipid-raft-dependent-endocytosis-negatively-regulates-responsiveness-of-j774-macrophage-like-cells-to-lps-by-down-regulating-the-cell-surface-expression-of-lps-receptors
#10
Szczepan Józefowski, Małgorzata Śróttek
Acting through CD14 and TLR4/MD-2, lipopolysaccharide (LPS) triggers strong pro-inflammatory activation of macrophages, which, if not appropriately controlled, may lead to lethal septic shock. Therefore, numerous mechanisms of negative regulation of responses to LPS exist, but whether they include down-regulation of LPS receptors is not clear. We have found that in J774 cells, the clathrin-dependent endocytic pathway enables activation of TRIF-dependent TLR4 signaling within endosomes, but is not associated with the down-regulation of TLR4 or CD14 surface expression...
November 23, 2016: Cellular Immunology
https://www.readbyqxmd.com/read/27908339/vasopressors-and-inotropes-in-sepsis
#11
REVIEW
Leeanne Stratton, David A Berlin, John E Arbo
Vasopressor and inotropes are beneficial in shock states. Norepinephrine is considered the first-line vasopressor for patients with sepsis-associated hypotension. Dobutamine is considered the first-line inotrope in sepsis, and should be considered for patients with evidence of myocardial dysfunction or ongoing signs of hypoperfusion. Vasopressor and inotrope therapy has complex effects that are often difficult to predict; emergency providers should consider the physiology and clinical trial data. It is essential to continually reevaluate the patient to determine if the selected treatment is having the intended result...
February 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27908338/fluid-resuscitation-in-severe-sepsis
#12
REVIEW
Rob Loflin, Michael E Winters
Since its original description in 1832, fluid resuscitation has become the cornerstone of early and aggressive treatment of severe sepsis and septic shock. However, questions remain about optimal fluid composition, dose, and rate of administration for critically ill patients. This article reviews pertinent physiology of the circulatory system, pathogenesis of septic shock, and phases of sepsis resuscitation, and then focuses on the type, rate, and amount of fluid administration for severe sepsis and septic shock, so providers can choose the right fluid, for the right patient, at the right time...
February 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27907062/sepsis-prevalence-and-outcome-on-the-general-wards-and-emergency-departments-in-wales-results-of-a-multi-centre-observational-point-prevalence-study
#13
Tamas Szakmany, Robert M Lundin, Ben Sharif, Gemma Ellis, Paul Morgan, Maja Kopczynska, Amrit Dhadda, Charlotte Mann, Danielle Donoghue, Sarah Rollason, Emma Brownlow, Francesca Hill, Grace Carr, Hannah Turley, James Hassall, James Lloyd, Llywela Davies, Michael Atkinson, Molly Jones, Nerys Jones, Rhodri Martin, Yousef Ibrahim, Judith E Hall
Data on sepsis prevalence on the general wards is lacking on the UK and in the developed world. We conducted a multicentre, prospective, observational study of the prevalence of patients with sepsis or severe sepsis on the general wards and Emergency Departments (ED) in Wales. During the 24-hour study period all patients with NEWS≥3 were screened for presence of 2 or more SIRS criteria. To be eligible for inclusion, patients had to have a high clinical suspicion of an infection, together with a systemic inflammatory response (sepsis) and evidence of acute organ dysfunction and/or shock (severe sepsis)...
2016: PloS One
https://www.readbyqxmd.com/read/27905927/characteristics-and-outcomes-of-diabetic-patients-with-an-implantable-cardioverter-defibrillator-in-a-real-world-setting-results-from-the-israeli-icd-registry
#14
Hillel Steiner, Michael Geist, Ilan Goldenberg, Mahmoud Suleiman, Michael Glikson, Alexander Tenenbaum, Moshe Swissa, Enrique Z Fisman, Gregory Golovchiner, Boris Strasberg, Alon Barsheshet
AIMS: There are limited data regarding the effect of diabetes mellitus (DM) on the risks of both appropriate and inappropriate implantable cardioverter defibrillator (ICD) therapy. The present study was designed to compare the outcome of appropriate and inappropriate ICD therapy in patients with or without DM. METHODS AND RESULTS: The risk of a first appropriate ICD therapy for ventricular tachyarrhythmias (including anti tachycardia pacing and shock) was compared between 764 DM and 1346 non-DM patients enrolled in the national Israeli ICD registry...
December 1, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27904453/outcome-of-severe-infections-in-afebrile-neutropenic-cancer-patients
#15
Ksenija Strojnik, Ksenija Mahkovic-Hergouth, Barbara Jezersek Novakovic, Bostjan Seruga
BACKGROUND: In some neutropenic cancer patients fever may be absent despite microbiologically and/or clinically confirmed infection. We hypothesized that afebrile neutropenic cancer patients with severe infections have worse outcome as compared to cancer patients with febrile neutropenia. PATIENTS AND METHODS: We retrospectively analyzed all adult cancer patients with chemotherapy-induced neutropenia and severe infection, who were admitted to the Intensive Care Unit at our cancer center between 2000 and 2011...
December 1, 2016: Radiology and Oncology
https://www.readbyqxmd.com/read/27904091/erratum-to-application-of-addition-cured-silicone-denture-relining-materials-to-adjust-mouthguards
#16
Shintaro Fukasawa, Hiroshi Churei, Ruman Uddin Chowdhury, Takahiro Shirako, Sharika Shahrin, Abhishekhi Shrestha, Takahiro Wada, Motohiro Uo, Hidekazu Takahashi, Toshiaki Ueno
The purposes of this study were to examine the shock absorption capability of addition-cured silicone denture relining materials and the bonding strength of addition-cured silicone denture relining materials and a commercial mouthguard material to determine its applicability to mouthguard adjustment. Two addition-cured silicone denture relining materials were selected as test materials. The impact test was applied by a free-falling steel ball. On the other hand, bonding strength was determined by a delamination test...
2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27903279/in-vitro-and-in-vivo-anti-malarial-activity-of-novel-harmine-analog-heat-shock-protein-90-inhibitors-a-possible-partner-for-artemisinin
#17
Abebe Genetu Bayih, Asongna Folefoc, Abu Naser Mohon, Scott Eagon, Marc Anderson, Dylan R Pillai
BACKGROUND: The emergence of artemisinin-resistant Plasmodium falciparum strains poses a serious challenge to the control of malaria. This necessitates the development of new anti-malarial drugs. Previous studies have shown that the natural beta-carboline alkaloid harmine is a promising anti-malarial agent targeting the P. falciparum heat-shock protein 90 (PfHsp90). The aim of this study was to test the anti-malarial activity of harmine analogues. METHODS: Forty-two harmine analogues were synthesized and the binding of these analogues to P...
December 1, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27902585/long-term-complications-of-splenectomy-in-adult-immune-thrombocytopenia
#18
Lan-Huong Thai, Matthieu Mahévas, Françoise Roudot-Thoraval, Nicolas Limal, Laetitia Languille, Guillaume Dumas, Mehdi Khellaf, Philippe Bierling, Marc Michel, Bertrand Godeau
The recent large decrease in splenectomy use for chronic immune thrombocytopenia (ITP) is partly due to still-unsolved questions about long-term safety. We performed the first single-center exposed/unexposed cohort study evaluating the long-term incidence of splenectomy complications in patients with primary ITP. Overall, 83 patients who underwent splenectomy more than 10 years ago (exposed) were matched with 83 nonsplenectomized patients (unexposed) on the date of ITP diagnosis ±5 years, age and gender. After a median follow-up of 192 months (range 0...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900350/swath-ms-dataset-of-heat-shock-treated-drosophila-melanogaster-embryos
#19
Bertrand Fabre, Dagmara Korona, Daniel J H Nightingale, Steven Russell, Kathryn S Lilley
Data independent acquisition (DIA) has emerged as a promising mass spectrometry based approach, combining the advantages of shotgun and targeted proteomics. Here we applied a DIA approach (termed SWATH) to monitor the dynamics of the Drosophila melanogaster embryonic proteome upon heat-shock treatment. Embryos were incubated for 0.5, 1 or 3 h at 37 °C to induce heat-shock or maintained at 25 °C. The present dataset contains SWATH files acquired on a Sciex Triple-TOF 6600. A spectral library built in-house was used to analyse these data and led to the quantification of more than 2500 proteins at every timepoint...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27899808/autoimmunity-to-hsp60-during-diet-induced-obesity-in-mice
#20
M E Şelli, G Wick, D C Wraith, A C Newby
Adaptive immunity has been implicated in adipose tissue inflammation, obesity and its adverse metabolic consequences. No obesity-related autoantigen has yet been identified, although heat shock protein 60 (HSP60) has been implicated in other autoimmune diseases. We investigated whether feeding a high fat diet to C57BL/6J mice would cause autoimmunity to HSP60 and whether immunomodulation with peptides from HSP60 would reverse the resulting obesity or metabolic dysfunction. Obese mice had higher circulating levels of HSP60 associated with increased T-lymphocyte proliferation responses and the emergence of circulating IgG1 and IgG2c antibody levels against HSP60...
November 30, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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