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https://www.readbyqxmd.com/read/28533769/celecoxib-enhances-the-efficacy-of-low-dose-antibiotic-treatment-against-polymicrobial-sepsis-in-mice-and-clinical-isolates-of-eskape-pathogens
#1
Madhavi Annamanedi, Gajapati Y N Varma, K Anuradha, Arunasree M Kalle
Treatment of multidrug resistant bacterial infections has been a great challenge globally. Previous studies including our study have highlighted the use of celecoxib, a non-steroidal anti-inflammatory drug in combination with antibiotic has decreased the minimal inhibitory concentration to limit Staphylococcus aureus infection. However, the efficacy of this combinatorial treatment against various pathogenic bacteria is not determined. Therefore, we have evaluated the potential use of celecoxib in combination with low doses of antibiotic in limiting Gram-positive and Gram-negative bacteria in vivo in murine polymicrobial sepsis developed by cecum ligation and puncture (CLP) method and against clinically isolated human ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28525777/prevalence-and-clinical-significance-of-early-high-endotoxin-activity-in-septic-shock-an-observational-study
#2
Maurizio Bottiroli, Gianpaola Monti, Riccardo Pinciroli, Irene Vecchi, Valeria Terzi, Giuseppe Ortisi, Giampaolo Casella, Roberto Fumagalli
PURPOSE: To measure the prevalence of elevated Endotoxin Activity (EA) in a large cohort of patients with Septic Shock (SS), and to assess its value as an early indicator of Gram-Negative (GN) infection, disease severity, and patient risk. MATERIALS AND METHODS: Adult patients were enrolled in this observational study if an EA determination was obtained within 24-h from SS onset. Demographic, clinical, and microbiological data were collected. In-hospital follow-up was also conducted...
April 26, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28522577/shorter-leukocyte-telomere-length-is-associated-with-higher-risk-of-infections-a-prospective-study-of-75-309-individuals-from-the-general-population
#3
Jens Helby, Børge G Nordestgaard, Thomas Benfield, Stig E Bojesen
In the general population, older age is associated with short leukocyte telomere length and with high risk of infections. In a recent study of allogeneic hematopoietic cell transplantation for severe aplastic anemia, long donor leukocyte telomere length was associated with improved survival in the recipients. These findings suggest that leukocyte telomere length could possibly be a marker of immune competence. Therefore, we tested the hypothesis that shorter leukocyte telomere length is associated with higher risk of infectious disease hospitalization and infection related death...
May 18, 2017: Haematologica
https://www.readbyqxmd.com/read/28520525/companion-and-point-of-care-sensor-system-for-rapid-multiplexed-detection-of-a-panel-of-infectious-disease-markers
#4
Anjan Panneer Selvam, Shalini Prasad
A nanochannel-based electrochemical biosensor has been demonstrated for rapid and multiplexed detection of a panel of three biomarkers associated with rapid detection of sepsis. The label-free biosensor detected procalcitonin (PCT), lipoteichoic acid (LTA), and lipopolysaccharide (LPS) from human whole blood. The biosensor comprises a nanoporous nylon membrane integrated onto a microelectrode sensor platform for nanoconfinement effects. Charge perturbations due to biomarker binding are recorded as impedance changes using electrochemical impedance spectroscopy...
June 2017: SLAS Technology
https://www.readbyqxmd.com/read/28514870/biomarker-profile-of-sepsis-associated-coagulopathy-using-biochip-assay-for-inflammatory-cytokines
#5
Amanda Walborn, Debra Hoppensteadt, Daneyal Syed, Michael Mosier, Jawed Fareed
Disseminated intravascular coagulation (DIC) is a major pathophysiological mechanism of sepsis and greatly increases the risk of death in septic patients. Disseminated intravascular coagulation is a complex physiological phenomenon that involves inappropriate activation of coagulation, inflammation, and endothelial processes. The purpose of this study was to analyze the levels of inflammatory cytokines in the plasma of patients with DIC in order to compare the measured levels with those from healthy individuals, draw correlations, and provide a basis for further biomarker panel development...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28504925/comparative-diagnostic-test-evaluation-of-serum-procalcitonin-and-c-reactive-protein-in-suspected-bloodstream-infections-in-children-with-cancer
#6
Swapna R Nath, Sabeena Jayapalan, Harikumaran Nair, P Kusumakumary, N S Prema, T Priyakumari, K Rajamohanan
PURPOSE: To compute diagnostic test properties of C-reactive protein (CRP) and serum procalcitonin (PCT) levels in bloodstream infections in children with cancer and suspected sepsis, in comparison with blood culture as the gold standard. METHODOLOGY: Consecutive paediatric cancer patients, aged ≤14 years, with clinically suspected bloodstream infections were evaluated with blood culture and assay of PCT and CRP levels. Blood culture was taken as the gold standard for comparison...
May 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28502138/presepsin-a-diagnostic-marker-for-sepsis-in-intensive-care-unit-patients
#7
Hanaa A Amer, Hala Ghareeb, Neama M Lotfy, Noran O El-Azizi, Asmaa Mahmoud Mahmoud
The aim of the study was to evaluate the usefulness of presepsin as a diagnostic marker of sepsis in intensive care unit (ICU) patients. Presepsin was measured by a rapid method based on a chemiluminescent enzyme immunoassay (PATHFAST). The clinical usefulness of presepsin to diagnose sepsis and septic shock was studied and compared with procalcitonin, C-reactive protein and total leucocytic count. This study was conducted on 53 individuals divided into 3 groups. Group I included 28 adult ICU patients with at least two diagnostic criteria for systemic inflammatory response syndrome (SIRS) as patient group, Group IIa 15 patients admitted to ICU for any medical cause but with no evidence of infection were enrolled as patient control group and further 10 apparently healthy subjects as healthy control group...
June 2016: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/28497010/a-review-of-the-value-of-procalcitonin-as-a-marker-of-infection
#8
REVIEW
Richard Taylor, Adriana Jones, Steven Kelly, Michael Simpson, Jordan Mabey
Septicemia is a growing problem within the United States (US), which increases mortality and the cost of care. Procalcitonin is a pro-inflammatory marker that could be useful in the diagnosis of infection. In the past, procalcitonin levels have been evaluated to diagnose sepsis or guide antibiotic therapy, but it was not determined if it would differentiate between sepsis and other causes of inflammation. Studies reviewed here showed procalcitonin to be a useful biomarker as an indication of bacterial infection...
April 10, 2017: Curēus
https://www.readbyqxmd.com/read/28494476/effect-of-the-shorter-stays-in-emergency-departments-time-target-policy-on-key-indicators-of-quality-of-care
#9
MULTICENTER STUDY
Peter Jones, James Le Fevre, Alana Harper, Susan Wells, Joanna Stewart, Elana Curtis, Papaarangi Reid, Shanthi Ameratunga
AIM: To determine whether implementation of a national health target called Shorter Stays in Emergency Departments impacted on clinical markers of quality of care. METHOD: A retrospective pre- and post-intervention study from 2006 to 2012 examined quality of care metrics for five different indicators at different sites in relation to the implementation of the target using a general linear model for times to treatment. Explanatory variables included period (pre- or post-target), ethnicity, age, deprivation and severity of condition...
May 12, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28492702/low-plasma-fvii-c-and-activated-fvii-as-predictive-markers-for-overt-disseminated-intravascular-coagulation
#10
Surapong Lertthammakiat, Nattachai Anantasit, Usanarat Anurathapan, Nongnuch Sirachainan, Praguywan Kadegasem, Ampaiwan Chuansumrit
In sepsis, binding of factor VII (FVII:C) and activated factor VII (FVIIa) with tissue factor is the key step of coagulation resulting in disseminated intravascular coagulation (DIC). We conducted a prospective cohort study among 47 septic patients, aged 8 months to 18.8 years. They were initially divided into three groups of no DIC (n=27), non-overt DIC (n=14) and overt DIC (n=6). Blood samples were collected at 0, 24 and 48 hours (h) after the onset of sepsis. At the onset of sepsis, FVII:C tended to be lower in the non-overt DIC [median 57 % (interquartile range [IQR] 41-80)] and overt DIC groups [33 % (23-52)] than that in the no DIC group [65 % (44-87)]...
May 11, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28486866/the-predictive-value-of-coefficient-of-pct-%C3%A3-bg-for-anastomotic-leak-in-esophageal-carcinoma-patients-with-ards-after-esophagectomy
#11
Huan Li, Daofeng Wang, Wenxiao Wei, Lamei Ouyang, Ning Lou
Anastomotic leak was a potentially severe life-threatening complication of esophagectomy, which drew attention in consequence of progressive dyspnea until acute respiratory distress syndrome (ARDS) due to the early asymptomatic presentation. Respiratory failure, caused by ARDS as the severe presentation of anastomotic leak, is the most common organ failure. CRP (C-reactive protein), procalcitonin (PCT), and Blood G (BG) test are the sensitivity markers for inflammatory, sepsis, and fungemia, respectively. Early recognition and intervention treatment of anastomotic leak may alleviate complication and improve outcome...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28486434/neonatal-and-maternal-25-oh-vitamin-d-serum-levels-in-neonates-with-early-onset-sepsis
#12
Taha Soliman Gamal, Abd-Allah Sayed Madiha, Mostafa Kamel Hanan, Mohamed El-Mazary Abdel-Azeem, Gamil S Marian
Vitamin D is a fat-soluble vitamin that is important for calcium metabolism and plays an important role in the immune functions. The aim of this study was to measure neonatal and maternal 25-OH vitamin D serum levels in neonates with early onset sepsis. The study included fifty neonates with early onset sepsis (25 full-term and 25 preterm infants) and thirty age and sex matched healthy neonates as controls. After history taking and clinical examination, complete blood count, C-reactive protein and 25-OH vitamin D serum levels (neonatal and maternal) were measured for all neonates...
May 9, 2017: Children
https://www.readbyqxmd.com/read/28484052/chronic-critical-illness-from-sepsis-is-associated-with-an-enhanced-tcr-response
#13
Farina Borken, Robby Markwart, Robert P Requardt, Katja Schubert, Michal Spacek, Miroslav Verner, Stefan Rückriem, André Scherag, Frank Oehmichen, Frank M Brunkhorst, Ignacio Rubio
Sepsis is characterized by a disproportionate host response to infection that often culminates in multiple organ failure. Current concepts invoke a deregulated immune reaction involving features of hyperinflammation, as well as protracted immune suppression. However, owing to the scarcity of human data, the precise origin of a long-term suppression of adaptive immunity remains doubtful. We report on an explorative clinical study of chronic critical illness (CCI) patients aimed at assessing the long-term consequences of sepsis on T cell function...
May 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28482628/red-blood-cell-and-platelet-parameters-are%C3%A2-sepsis-predictors-in-an-escherichia-coli%C3%A2-induced-lethal-porcine-model
#14
Judit Tóth, Ildikó Beke Debreceni, Mariann Berhés, Endre Hajdú, Ádám Deák, Katalin Pető, Judit Szabó, Norbert Németh, Béla Fülesdi, János Kappelmayer
OBJECTIVE: In a fulminant porcine sepsis model, we determined the kinetics of hypoxia induced changes in relation to sepsis parameters and markers of organ damage. METHODS: Female pigs were challenged by live Escherichia coli and samples were analysed up to 4 hours. Bone marrow reactions were determined by analysing immature forms of peripheral blood cells by a hematology analyser and light microscopy. Platelet mitochondrial membrane depolarisation was determined by flow cytometry...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28464844/pulmonary-strongyloidiasis-assessment-between-manifestation-and-radiological-findings-in-16-severe-strongyloidiasis-cases
#15
Daijiro Nabeya, Shusaku Haranaga, Gretchen Lynn Parrott, Takeshi Kinjo, Saifun Nahar, Teruhisa Tanaka, Tetsuo Hirata, Akira Hokama, Masao Tateyama, Jiro Fujita
BACKGROUND: Strongyloidiasis is a chronic parasitic infection caused by Strongyloides stercoralis. Severe cases such as, hyperinfection syndrome (HS) and disseminated strongyloidiasis (DS), can involve pulmonary manifestations. These manifestations frequently aid the diagnosis of strongyloidiasis. Here, we present the pulmonary manifestations and radiological findings of severe strongyloidiasis. METHODS: From January 2004 to December 2014, all patients diagnosed with severe strongyloidiasis at the University of the Ryukyus Hospital or affiliated hospitals in Okinawa, Japan, were included in this retrospective study...
May 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28458349/impact-of-pioglitazone-on-macrophage-dynamics-in-adipose-tissues-of-cecal-ligation-and-puncture-treated-mice
#16
Takeshi Matsutani, Kazuhiro Tamura, Masahiko Kutsukake, Akihisa Matsuda, Eiichi Tachikawa, Eiji Uchida
Pioglitazone improves sepsis-induced organ injury accompanied with anti-inflammatory effects on visceral adipose tissue. However, its action in adipose immune cells remains to be ascertained. We investigated the effects of pioglitazone on visceral adipose macrophage population and polarisation in cecal ligation and puncture (CLP)-induced sepsis mice. Eight-week-old male mice were assigned to 3 groups: 1) sham-operated group, 2) CLP group, or 3) pioglitazone-treated CLP group. Pioglitazone (10 mg/kg) was injected intraperitonally for 7 d and CLP surgery was performed...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28458167/downregulation-of-pi3k-%C3%AE-in-a-mouse-model-of-sepsis-induced-myocardial-dysfunction
#17
Ting-Ting Fan, Xuan-Yun Feng, Yuan-Zheng Yang, Feng Gao, Qiong Liu
A key component during sepsis is the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway, of which the PI3K-γ isoform is a major regulator in many inflammatory responses. However, the role of PI3K-γ in the development of sepsis-induced myocardial dysfunction (SIMD) is unknown. In this study, we established a model of SIMD induced by lipopolysaccharide (LPS), subsequently used the selective inhibitor LY294002 and AS605240 to block the effect of PI3K and PI3K-γ, respectively. Cardiac function was evaluated by echocardiography, hearts were obtained for histological and protein expression examinations...
April 27, 2017: Cytokine
https://www.readbyqxmd.com/read/28457334/plasma-dna-and-rna-differentially-impact-coagulation-during-abdominal-sepsis-an-explorative-study
#18
Emmanuel Schneck, Omar Samara, Christian Koch, Andreas Hecker, Winfried Padberg, Christoph Lichtenstern, Markus Alexander Weigand, Florian Uhle
BACKGROUND: Cell-free DNA (cfDNA) and extracellular RNA (exRNA) are both suspected to activate coagulation cascades in sepsis. Therefore, our study investigated the influence of plasmatic nucleic acids on coagulation in septic patients in comparison to patients after major abdominal surgery. MATERIALS AND METHODS: A total of 15 patients with sepsis, 10 postoperative patients, and 10 healthy volunteers were included in this longitudinal study. Blood was collected at sepsis onset and after surgery respectively, as well as after 24, 72 and 168 h...
April 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28456665/a-novel-paradigm-links-mitochondrial-dysfunction-with-muscle-stem-cell-impairment-in-sepsis
#19
REVIEW
Laurent Chatre, Franck Verdonk, Pierre Rocheteau, Clément Crochemore, Fabrice Chrétien, Miria Ricchetti
Sepsis is an acute systemic inflammatory response of the body to microbial infection and a life threatening condition associated with multiple organ failure. Survivors may display long-term disability with muscle weakness that remains poorly understood. Recent data suggest that long-term myopathy in sepsis survivors is due to failure of skeletal muscle stem cells (satellite cells) to regenerate the muscle. Satellite cells impairment in the acute phase of sepsis is linked to unusual mitochondrial dysfunctions, characterized by a dramatic reduction of the mitochondrial mass and hyperactivity of residual organelles...
April 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28452590/habitual-physical-activity-protects-against-lipopolysaccharide-induced-inflammation-in-mouse-adipose-tissue
#20
Willem T Peppler, Zachary G Anderson, Laura M MacRae, Rebecca E K MacPherson, David C Wright
Sepsis is a systemic inflammatory response to infection, with no preventative strategies. In this study, we identify a role for habitual physical activity in the prevention of adipose tissue inflammation induced by a model of sepsis, lipopolysaccharide (LPS). Male C57BL/6J mice (8 weeks old) were housed with access to voluntary wheel running (VWR) or sedentary (SED) for 10 weeks. Mice were then injected with LPS (2 mg/kg) or saline (SAL), and tissues were removed 6 hours post-injection. VWR attenuated body, epididymal adipose tissue (eWAT), and subcutaneous inguinal adipose tissue (iWAT) mass gain, improved glucose tolerance, increased markers of mitochondrial biogenesis in iWAT and eWAT, and increased UCP-1 protein content in iWAT...
January 2, 2017: Adipocyte
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