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https://www.readbyqxmd.com/read/29138849/elevated-serum-levels-of-lipoprotein%C3%A2-associated-phospholipase%C3%A2-a2-predict-mortality-rates-in-patients-with-sepsis
#1
Zhongwei Huang, Haiyan Jiang, Xiaohui Cui, Guiwen Liang, Yu Chen, Ting Wang, Zhichao Sun, Lei Qi
Sepsis remains one of the leading contributors to mortality rates in the intensive care unit (ICU) and emergency intensive care unit (EICU). Therefore, any treatments against the agents which produce sepsis in a medical emergency, are welcome. Elevated serum levels of lipoprotein‑associated phospholipase A2 (Lp‑PLA2) have been reported in a small cohort of patients with inflammation. The present study evaluated serum levels of Lp‑PLA2 in patients with sepsis and investigated the role of Lp‑PLA2 in sepsis...
November 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137274/effective-protection-against-acute-respiratory-distress-syndrome-sepsis-injury-by-combined-adipose-derived-mesenchymal-stem-cells-and-preactivated-disaggregated-platelets
#2
Chih-Hung Chen, Yung-Lung Chen, Pei-Hsun Sung, Cheuk-Kwan Sun, Kuan-Hung Chen, Yi-Ling Chen, Tien-Hung Huang, Hung-I Lu, Fan-Yen Lee, Jiunn-Jye Sheu, Sheng-Ying Chung, Mel S Lee, Hon-Kan Yip
This study assessed whether combining adipose-derived mesenchymal stem cells (ADMSC) with preactivated, disaggregated shape-changed platelets (PreD-SCP) was superior to either therapy alone for protecting rat lung from acute respiratory distress syndrome (ARDS) complicated by sepsis. ARDS and sepsis were induced through 100% oxygen inhalation and peritoneal administration of 1.5 mg/kg lipopolysaccharide (LPS), respectively. Adult-male Sprague-Dawley rats (n=40) were randomized into sham-control (SC), ARDS-LPS, ARDS-LPS-ADMSC (1...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136027/expression-of-toll-like-receptors-tlrs-in-the-lungs-of-an-experimental-sepsis-mouse-model
#3
Anargyros Bakopoulos, Alkistis Kapelouzou, Diamantis I Tsilimigras, Michalis Katsimpoulas, Dimitrios Schizas, Chrysostomos Aravanis, Evaggelos Balafas, Manolis Mavroidis, Kitty Pavlakis, Anastasios Machairas, Theodore Liakakos
BACKGROUND: Sepsis is a condition characterized by high mortality rates and often accompanied by multiple-organ dysfunction. During sepsis, respiratory system may be affected and possibly result in acute respiratory distress syndrome (ARDS). Toll-like receptors (TLRs), as a first line defense against invading pathogens, seem to be highly expressed in septic states. Therefore, expression of TLRs in the lungs of a sepsis animal model could indicate the involvement of the respiratory system and appear as a severity index of the clinical course...
2017: PloS One
https://www.readbyqxmd.com/read/29134253/the-role-of-the-neutrophil-lymphocyte-ratio-nlr-and-the-crp-albumin-ratio-car-in-predicting-mortality-following-emergency-laparotomy-in-the-over-80-age-group
#4
G Simpson, R Saunders, J Wilson, C Magee
INTRODUCTION: Emergency laparotomy in the elderly is an increasingly common procedure which carries high morbidity and mortality. Risk prediction tools, although imperfect, can help guide management decisions. Novel markers of surgical outcomes may contribute to these scoring systems. The neutrophil:lymphocyte ratio (NLR) and CRP:albumin ratio (CAR) have been associated with outcomes in malignancy and sepsis. We assessed the use of ratio NLR and CAR as prognostic indicators in patients over the age of 80 undergoing emergency laparotomy...
November 13, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29129689/ascorbic-acid-attenuates-endothelial-permeability-triggered-by-cell-free-hemoglobin
#5
Jamie L Kuck, Julie A Bastarache, Ciara M Shaver, Joshua P Fessel, Sergey I Dikalov, James M May, Lorraine B Ware
BACKGROUND: Increased endothelial permeability is central to shock and organ dysfunction in sepsis but therapeutics targeted to known mediators of increased endothelial permeability have been unsuccessful in patient studies. We previously reported that cell-free hemoglobin (CFH) is elevated in the majority of patients with sepsis and is associated with organ dysfunction, poor clinical outcomes and elevated markers of oxidant injury. Others have shown that Vitamin C (ascorbate) may have endothelial protective effects in sepsis...
November 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29127203/receptor-for-advanced-glycation-endproducts-mediates-sepsis-triggered-amyloid-%C3%AE-accumulation-tau-phosphorylation-and-cognitive-impairment
#6
Juciano Gasparotto, Carolina S Girardi, Nauana Somensi, Camila T Ribeiro, José C F Moreira, Monique Michels, Beatriz Sonai, Mariane Rocha, Amanda V Steckert, Tatiana Barichello, João Quevedo, Felipe Dal-Pizzol, Daniel P Gelain
Patients recovering from sepsis have higher rates of CNS morbidities associated with long-lasting impairment of cognitive functions, including neurodegenerative diseases. However, the molecular etiology of these sepsis-induced impairments is unclear. Here, we investigated the role of the receptor for advanced glycation end products (RAGE) in neuroinflammation, neurodegeneration-associated changes, and cognitive dysfunction arising after sepsis recovery. Adult Wistar rats underwent cecal ligation and perforation (CLP), and serum and brain (hippocampus and prefrontal cortex) samples were obtained at days 1, 15, and 30 after the CLP...
November 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29120575/neutrophil-cd11b-cd64-and-lipocalin-2-early-diagnostic-markers-of-neonatal-sepsis
#7
Abeer Sheneef, Tamer Mohamed, Naglaa F Boraey, Mostafa A Mohammed
Neonatal sepsis remains a global health problem particularly in the developing countries. Its diagnosis remains one of the most difficult issues in clinical medicine. Many immunologic markers including neutrophils CD11b and CD 64 and Lipocalin-2 have been tested as biomarkers of neonatal sepsis. The aim of the present study was to assess the value of these markers for early diagnosis of neonatal sepsis. The study included 60 neonates with suspected neonatal sepsis and 20 apparently healthy controls. Lipocalin-2 serum level was assessed by ELISA while neutrophils CD11b and CD64 expressions were evaluated by flow cytometry...
January 2017: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/29117994/role-of-adenosine-1a-receptor-signaling-on-gfr-early-after-the-induction-of-sepsis
#8
Jonathan M Street, Erik H Koritzinsky, Tiffany R Bellomo, Xuzhen Hu, Peter S T Yuen, Robert A Star
Sepsis and acute kidney injury (AKI) synergistically increase morbidity and mortality in the ICU. How sepsis reduces GFR and causes AKI is poorly understood; one proposed mechanism includes tubuloglomerular feedback (TGF). When sodium reabsorption by the proximal tubules is reduced in normal animals, the macula densa senses increased luminal sodium chloride, then adenosine 1a receptor (A1aR) signaling triggers tubuloglomerular feedback, reducing GFR through afferent arteriole vasoconstriction. We measured GFR and systemic hemodynamics early during cecal ligation and puncture-induced sepsis in wild-type and A1aR knockout mice...
November 8, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29111468/the-therapeutic-value-of-protein-de-nitrosylation-in-experimental-septic-shock
#9
Patrícia O Benedet, Angela C O Menegatti, Muryel C Gonçalves, Hernán Terenzi, Jamil Assreuy
Cardiovascular dysfunction and organ damage are hallmarks of sepsis and septic shock. Protein S-nitrosylation by nitric oxide has been described as an important modifier of protein function. We studied whether protein nitrosylation/denitrosylation would impact positively in hemodynamic parameters of septic rats. Polymicrobial sepsis was induced by cecal ligation and puncture. Female Wistar rats were treated with increasing doses of DTNB [5,5'-dithio-bis-(2-nitrobenzoic acid)] 30min before or 4 or 12h after sepsis induction...
October 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29091053/multiscale-network-representation-of-physiological-time-series-for-early-prediction-of-sepsis
#10
Supreeth Prajwal Shashikumar, Qiao Li, Gari D Clifford, Shamim Nemati
Sepsis, a dysregulated immune-mediated host response to infection, is the leading cause of morbidity and mortality in critically ill patients. Indices of heart rate variability and complexity (such as entropy) have been proposed as surrogate markers of Neuro-immune system dysregulation with diseases such as sepsis. However, these indices only provide an average, one dimensional description of complex neuro-physiological interactions. We propose a novel multiscale network construction and analysis method for multivariate physiological time series, and demonstrate its utility for early prediction of sepsis...
November 1, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29084071/a-study-of-red-cell-distribution-width-in-neonatal-sepsis
#11
Dalia Monir Ellahony, Muhammad S El-Mekkawy, Marwa M Farag
OBJECTIVES: The objective of this study was to evaluate a new nontraditional value of the red cell distribution width (RDW) in predicting the clinical outcome of neonatal sepsis. METHODS: In this retrospective study, data were collected from the medical files of 500 full-term neonates with a diagnosis of early onset or late onset sepsis. Baseline RDW and other traditional biomarkers, including C-reactive protein (CRP), total leucocytic count, and platelet count were analyzed in light of the clinical data...
October 27, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29078895/srt1720-a-sirtuin-1-activator-attenuates-organ-injury-and-inflammation-in-sepsis
#12
Adam Khader, Weng-Lang Yang, Laura W Hansen, Salil R Rajayer, Jose M Prince, Jeffrey M Nicastro, Gene F Coppa, Ping Wang
BACKGROUND: Sepsis affects 800,000 patients in the United States annually with a mortality rate of up to 30%. Recent studies suggest that sepsis-associated metabolic derangements due to hypoxic tissue injury, impaired oxygen utilization, and mitochondrial dysfunction contribute to mortality. Sirtuin 1 (Sirt1) is a crucial modulator of energy metabolism during starvation states and has anti-inflammatory effects. Here, we hypothesized that SRT1720, a Sirt1 activator, could attenuate the severity of sepsis...
November 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29076974/on-the-role-of-illness-duration-and-nutrient-restriction-in-cholestatic-alterations-that-occur-during-critical-illness
#13
Marc Jenniskens, Fabian Güiza, Marlies Oorts, Sarah Vander Perre, Sarah Derde, Thomas Dufour, Steven Thiessen, Pieter Annaert, Greet Van den Berghe, Lies Langouche
BACKGROUND AND AIMS: Elevated markers of cholestasis are common in response to critical illness, and associated with adverse outcome. The role of illness duration and of nutrient restriction on underlying molecular pathways of such cholestatic responses have not been thoroughly investigated. METHODS: In a mouse model of surgery- and sepsis-induced critical illness, molecular pathways of cholestasis were investigated up to 7 days. To assess which changes are explained by illness-induced lack of feeding, nutrient-restricted healthy mice were studied and compared with ad libitum fed healthy mice...
October 25, 2017: Shock
https://www.readbyqxmd.com/read/29074879/the-role-of-autophagy-in-critical-illness-induced-liver-damage
#14
Steven E Thiessen, Inge Derese, Sarah Derde, Thomas Dufour, Lies Pauwels, Youri Bekhuis, Isabel Pintelon, Wim Martinet, Greet Van den Berghe, Ilse Vanhorebeek
Mitochondrial dysfunction and endoplasmic reticulum (ER) stress, which activates the unfolded protein response (UPR), mediate critical illness-induced organ failure, often affecting the liver. Autophagy is known to alleviate both and suppressed or insufficiently activated autophagy in prolonged illness has shown to associate with organ failure. Whether insufficient autophagy contributes to organ failure during critical illness by affecting these underlying mechanisms is incompletely understood. In this study, we investigated whether the inability to acutely activate hepatic autophagy during critical illness aggravates liver damage by increasing hepatic mitochondrial dysfunction and affecting the UPR...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29072562/platelet-to-white-blood-cell-ratio-predicts-30-day-postoperative-infectious-complications-in-patients-undergoing-radical-nephrectomy-for-renal-malignancy
#15
Alaina Garbens, Christopher J D Wallis, Georg Bjarnason, Girish S Kulkarni, Avery B Nathens, Robert K Nam, Raj Satkunasivam
INTRODUCTION: We sought to examine the relationship between preoperative platelet to white blood cell ratio (PLT/WBC), a hematologic marker of the systemic inflammatory response, and postoperative infectious complications following radical nephrectomy for localized renal cell carcinoma. METHODS: We performed a retrospective cohort study of patients treated with radical nephrectomy for localized kidney cancer between January 1, 2005 and December 31, 2014 (n=6235) using the American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) database...
November 11, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29068553/serum-alpha1-proteinase-inhibitor-concentrations-in-dogs-with-systemic-inflammatory-response-syndrome-or-sepsis
#16
Romy M Heilmann, Niels Grützner, Brittany E Thames, Jörg M Steiner, James W Barr
OBJECTIVE: To determine whether the concentration of serum canine alpha1 -proteinase inhibitor (cα1 -PI) has diagnostic or prognostic utility in dogs with sepsis or noninfectious systemic inflammatory response syndrome (SIRS). DESIGN: Prospective, observational study from May to December 2010. SETTING: University teaching hospital ICU. ANIMALS: Sixty-nine client-owned dogs: 19 dogs with SIRS or sepsis and 50 healthy control dogs...
October 25, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29067103/magnetic-resonance-spectroscopy-for-assessment-of-brain-injury-in-the-rat-model-of-sepsis
#17
Miaoyun Wen, Zhesi Lian, Linqiang Huang, Senzhi Zhu, Bei Hu, Yongli Han, Yiyu Deng, Hongke Zeng
The diagnostic value of magnetic resonance spectroscopy (MRS), T2-weighted imaging (T2WI) and serum markers of brain injury in a rat model of sepsis were investigated. Rats were randomly divided into the control group and 6, 12 and 24 h after lipopolysaccharide-injection groups. Brain morphology and metabolism were assessed with T2WI magnetic resonance imaging (MRI) and MRS. Serum and brain tissue samples were then collected to examine the concentrations of neuron-specific enolase (NSE) and S100-β protein...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29063386/assessment-of-immune-organ-dysfunction-in-critical-illness-utility-of-innate-immune-response-markers
#18
REVIEW
Carmen Andrea Pfortmueller, Christian Meisel, Michaela Fux, Joerg C Schefold
In critically ill patients, organ dysfunctions are routinely assessed, monitored, and treated. Mounting data show that substantial critical illness-induced changes in the immune system can be observed in most ICU patients and that not only "hyper-inflammation" but also persistence of an anti-inflammatory phenotype (as in sepsis-associated immunosuppression) is associated with increased morbidity and mortality. Despite common perception, changes in functional immunity cannot be adequately assessed by routine inflammatory biomarkers such as C-reactive protein, procalcitonin, or numerical analysis of leukocyte (sub)-counts...
October 23, 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/29049138/graph-theoretical-analysis-of-genome-scale-data-examination-of-gene-activation-occurring-in-the-setting-of-community-acquired-pneumonia
#19
Octavia M Peck Palmer, Gary Rogers, Sachin Yende, Derek C Angus, Michael A Langston, Gilles Clermont
INTRODUCTION: We have previously reported evidence that black individuals appear to have a significantly higher incidence of infection-related hospitalizations compared to white individuals. It is possible that the host immune response is responsible for this vital difference. In support such a hypothesis, the aim of this study was to determine whether black and white individuals exhibit differential whole blood gene network activation. METHODS: We examined whole blood network activation in a subset of patients (n = 22 pairs, propensity score matched (1:1) black and white patients) with community-acquired pneumonia (CAP) from the Genetic and Inflammatory Markers of Sepsis study...
October 18, 2017: Shock
https://www.readbyqxmd.com/read/29048364/protective-effect-of-argan-and-olive-oils-against-lps-induced-oxidative-stress-and-inflammation-in-mice-livers
#20
Soufiane El Kamouni, Riad El Kebbaj, Pierre Andreoletti, Abderrahim El Ktaibi, Issam Rharrassi, Abdelkhalid Essamadi, M'hammed Saïd El Kebbaj, Stéphane Mandard, Norbert Latruffe, Joseph Vamecq, Boubker Nasser, Mustapha Cherkaoui-Malki
Sepsis causes severe dysregulation of organ functions, via the development of oxidative stress and inflammation. These pathophysiological mechanisms are mimicked in mice injected with bacterial lipopolysaccharide (LPS). Here, protective properties of argan oil against LPS-induced oxidative stress and inflammation are explored in the murine model. Mice received standard chow, supplemented with argan oil (AO) or olive oil (OO) for 25 days, before septic shock was provoked with a single intraperitoneal injection of LPS, 16 hours prior to animal sacrifice...
October 19, 2017: International Journal of Molecular Sciences
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