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acute lung injury and sepsis

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https://www.readbyqxmd.com/read/29778842/curcumin-attenuates-sepsis-induced-acute-organ-dysfunction-by-preventing-inflammation-and-enhancing-the-suppressive-function-of-tregs
#1
Longwang Chen, Yang Lu, Linjun Zhao, Lili Hu, Qiaomeng Qiu, Zhuoling Zhang, Mengfang Li, Guangliang Hong, Bing Wu, Guangju Zhao, Zhongqiu Lu
Sepsis is characterized by the extensive release of cytokines and other mediators. It results in a dysregulated immune response and can lead to organ damage and death. Curcumin has anti-inflammatory properties and immunoregulation functions in various disorders such as sepsis, cancer, rheumatoid arthritis, cardiovascular diseases, lung fibrosis, gallstone formation, and diabetes. This paper investigates the effects of curcumin on immune status and inflammatory response in mice subjected to cecal ligation and puncture (CLP)...
May 17, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29770701/mk2-mediates-macrophage-activation-and-acute-lung-injury-by-regulating-let-7e-mirna
#2
Yaxian Wu, Huiqiong He, Yunhe Ding, Sirui Liu, Depeng Zhang, Jun Wang, Hongchao Jiang, Dan Zhang, Lei Sun, Richard D Ye, Feng Qian
MAPK-activated protein kinase 2 (MK2) plays a critical role in the development of inflammation. However, the modulatory mechanisms in macrophage activation and acute lung injury (ALI) haven't been completely defined. Here, we reported that MK2 deficient mice (MK2-/-) protected against sepsis-induced ALI. In response to lipopolysaccharide (LPS) challenge, MK2-/- mice and myeloid cell-specific MK2 conditional knockout mice (MK2Lyz2-KO) exhibited attenuated inflammatory response, especially producing fewer amounts of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and macrophage inflammatory protein 2 (MIP-2)...
May 17, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29753517/liberal-versus-restrictive-intravenous-fluid-therapy-for-early-septic-shock-rationale-for-a-randomized-trial
#3
Wesley H Self, Matthew W Semler, Rinaldo Bellomo, Samuel M Brown, Bennett P deBoisblanc, Matthew C Exline, Adit A Ginde, Colin K Grissom, David R Janz, Alan E Jones, Kathleen D Liu, Stephen P J Macdonald, Chadwick D Miller, Pauline K Park, Lora A Reineck, Todd W Rice, Jay S Steingrub, Daniel Talmor, Donald M Yealy, Ivor S Douglas, Nathan I Shapiro
Prompt intravenous fluid therapy is a fundamental treatment for patients with septic shock. However, the optimal approach for administering intravenous fluid in septic shock resuscitation is unknown. Two competing strategies are emerging: a liberal fluids approach, consisting of a larger volume of initial fluid (50 to 75 mL/kg [4 to 6 L in an 80-kg adult] during the first 6 hours) and later use of vasopressors, versus a restrictive fluids approach, consisting of a smaller volume of initial fluid (≤30 mL/kg [≤2 to 3 L]), with earlier reliance on vasopressor infusions to maintain blood pressure and perfusion...
May 9, 2018: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29746822/tabersonine-attenuates-lipopolysaccharide-induced-acute-lung-injury-via-suppressing-traf6-ubiquitination
#4
Depeng Zhang, Xiaozong Li, Yudong Hu, Hongchao Jiang, Yaxian Wu, Yunhe Ding, Kaikai Yu, Huiqiong He, Jingsong Xu, Lei Sun, Feng Qian
Sepsis caused by Gram-negative bacteria is one of major causes for the progression of acute lung injury (ALI) with limited treatment and effective medicines. Tabersonine is an indole alkaloid mainly isolated from Catharanthus roseus, and a potential drug candidate for treatment of cancer and Alzheimer's disease (AD), however, its anti-inflammatory effect has not been revealed. In this study, we reported that tabersonine ameliorated lipopolysaccharides (LPS)-induced ALI in vivo and inhibited LPS-mediated macrophage activation in vitro...
May 7, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29741778/gadd45%C3%AE-plays-a-protective-role-in-acute-lung-injury-by-regulating-apoptosis-in-experimental-sepsis-in-vivo
#5
Sung-Je Moon, Hyun-Yong Kim, Yong-Hoon Kim, Kyoung-Shim Kim, Jung-Ran Noh, Hyun-Jong Kim, Ji-Hyun Choi, Jung H Hwang, Chul-Ho Lee
Sepsis is a systemic inflammatory response syndrome due to microbial infection. Growth arrest and DNA-damage-inducible 45 beta (GADD45β) are induced by genotoxic stress and inflammatory cytokines. However, the role of GADD45β during bacterial infection remains unclear. This study was aimed at investigating the role of GADD45β in sepsis. We used GADD45β-knockout (KO) mice and C57BL/6J wild-type (WT) mice. Experimental sepsis was induced by lipopolysaccharide (LPS) administration or cecal ligation and puncture (CLP)...
May 9, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29737475/effect-of-a-stellate-ganglion-block-on-acute-lung-injury-in-septic-rats
#6
Yong Chen, Lian Guo, Haili Lang, Xiaolan Hu, Sun Jing, Mengsi Luo, Guohai Xu, Zhidong Zhou
A stellate ganglion block (SGB) is a clinical sympathetic block which can inhibit the body systemic inflammatory response. However, whether and how SGB can attenuate the sepsis-induced acute lung injury remains unclear. Here, we evaluated the effect of SGB on sepsis-induced acute lung injury in rats. Ninety healthy Sprague Dawley (SD) male rats were divided into three groups: the sham operation group (S group), sepsis group (Sep group), and SGB group. The sepsis model rats were produced by cecum ligation and puncture (CLP), and blood samples were taken from the abdominal aorta of the rats at different time points for evaluating the concentration of TNF-α, IL-6, and IL-10 by enzyme-linked immunosorbent assay (ELISA)...
May 8, 2018: Inflammation
https://www.readbyqxmd.com/read/29727368/platelet-transfusion-practices-in-critically-ill-children
#7
Marianne E Nellis, Oliver Karam, Elizabeth Mauer, Melissa M Cushing, Peter J Davis, Marie E Steiner, Marisa Tucci, Simon J Stanworth, Philip C Spinella
OBJECTIVES: Little is known about platelet transfusions in pediatric critical illness. We sought to describe the epidemiology, indications, and outcomes of platelet transfusions among critically ill children. DESIGN: Prospective cohort study. SETTING: Multicenter (82 PICUs), international (16 countries) from September 2016 to April 2017. PATIENTS: Children ages 3 days to 16 years prescribed a platelet transfusion in the ICU during screening days...
May 4, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29697866/etiologies-and-predictors-of-30-day-readmissions-in-patients-undergoing-percutaneous-mechanical-circulatory-support-assisted-percutaneous-coronary-intervention-in-the-united-states-insights-from-the-nationwide-readmissions-database
#8
Chirag Bavishi, Alejandro Lemor, Vrinda Trivedi, Saurav Chatterjee, Pedro Moreno, John Lasala, Herbert D Aronow, J Dawn Abbott
BACKGROUND: Patients undergoing percutaneous mechanical circulatory support (pMCS)-assisted percutaneous coronary intervention (PCI) represent a high-risk group vulnerable to complications and readmissions. HYPOTHESIS: Thirty-day readmissions after pMCS-assisted PCI are common among patients with comorbidities and account for a significant amount of healthcare spending. METHODS: Patients undergoing PCI and pMCS (Impella, TandemHeart, or intra-aortic balloon pump) for any indication between January 1, 2012, and November 30, 2014, were selected from the Nationwide Readmissions Database...
April 26, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29693474/acute-kidney-injury-in-critically-ill-patients-with-sepsis-clinical-characteristics-and-outcomes
#9
De-Yuan Zhi, Jin Lin, Hai-Zhou Zhuang, Lei Dong, Xiao-Jun Ji, Dong-Cheng Guo, Xiao-Wei Yang, Shuai Liu, Zu Yue, Shu-Jing Yu, Mei-Li Duan
OBJECTIVE: The objectives of this study were to examine the clinical profile of critically ill patients with septic acute kidney injury (AKI) and to investigate clinical characteristics associated with the outcome of patients. METHODS: Data from 582 critically ill patients were collected and retrospectively reviewed. Patients were divided into two groups: without AKI development and with AKI development. Baseline characteristics, laboratory, and other clinical data were compared between these two groups, and correlations between the characteristics and AKI development were examined...
April 25, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/29690950/safety-of-tracheal-intubation-in-the-presence-of-cardiac-disease-in-paediatric-icus
#10
Eleanor A Gradidge, Adnan Bakar, David Tellez, Michael Ruppe, Sarah Tallent, Geoffrey Bird, Natasha Lavin, Anthony Lee, Vinay Nadkarni, Michelle Adu-Darko, Jesse Bain, Katherine Biagas, Aline Branca, Ryan K Breuer, Calvin Brown, Kris Bysani, Guillaume Emeriaud, Sandeep Gangadharan, John S Giuliano, Joy D Howell, Conrad Krawiec, Jan Hau Lee, Simon Li, Keith Meyer, Michael Miksa, Natalie Napolitano, Sholeen Nett, Gabrielle Nuthall, Alberto Orioles, Erin B Owen, Margaret M Parker, Simon Parsons, Lee A Polikoff, Kyle Rehder, Osamu Saito, Ron C Sanders, Asha Shenoi, Dennis W Simon, Peter W Skippen, Keiko Tarquinio, Anne Thompson, Iris Toedt-Pingel, Karen Walson, Akira Nishisaki
IntroductionChildren with CHD and acquired heart disease have unique, high-risk physiology. They may have a higher risk of adverse tracheal-intubation-associated events, as compared with children with non-cardiac disease.Materials and methodsWe sought to evaluate the occurrence of adverse tracheal-intubation-associated events in children with cardiac disease compared to children with non-cardiac disease. A retrospective analysis of tracheal intubations from 38 international paediatric ICUs was performed using the National Emergency Airway Registry for Children (NEAR4KIDS) quality improvement registry...
April 25, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29664874/traumatic-brain-injury-and-infectious-encephalopathy-in-children-from-four-resource-limited-settings-in-africa
#11
Ericka L Fink, Amelie von Saint Andre-von Arnim, Rashmi Kumar, Patrick T Wilson, Tigist Bacha, Abenezer Tirsit Aklilu, Tsegazeab Laeke Teklemariam, Shubhada Hooli, Lisine Tuyisenge, Easmon Otupiri, Anthony Fabio, John Gianakas, Patrick M Kochanek, Derek C Angus, Robert C Tasker
OBJECTIVES: To assess the frequency, interventions, and outcomes of children presenting with traumatic brain injury or infectious encephalopathy in low-resource settings. DESIGN: Prospective study. SETTING: Four hospitals in Sub-Saharan Africa. PATIENTS: Children age 1 day to 17 years old evaluated at the hospital with traumatic brain injury or infectious encephalopathy. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: We evaluated the frequency and outcomes of children presenting consecutively over 4 weeks to any hospital department with traumatic brain injury or infectious encephalopathy...
April 16, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29655793/inhibition-of-nlrp9b-attenuates-acute-lung-injury-through-suppressing-inflammation-apoptosis-and-oxidative-stress-in-murine-and-cell-models
#12
Qiu Yanling, Cheng Xiaoning, Bai Fei, Fang Liyun, Hu Huizhong, Sun Daqing
Acute lung injury (ALI), known a severe disease along with high morbidity and mortality, is lacking of specific therapies. Inflammation, apoptosis and oxidative stress are critical pathologies that contribute to ALI. Recently, there is study indicated that NLRP9b, a NOD-like receptor (NLR) member, is critical in modulation of inflammatory response. However, the effects of NLRP9b on sepsis-associated ALI, and the underlying molecular mechanism have not been understood. In the present study, the wild type (WT) and NLRP9b-knockout (NLRP9b-/- ) mice with C57B/L6 background were subjected to a cecal ligation and puncture (CLP) for ALI murine model establishment...
April 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29655568/luteolin-attenuates-acute-lung-injury-in-experimental-mouse-model-of-sepsis
#13
Soya Rungsung, Thakur Uttam Singh, Dipankar Jyoti Rabha, Tarun Kumar, Madhu Cholenahalli Lingaraju, Subhashree Parida, Avishek Paul, Monalisa Sahoo, Dinesh Kumar
The present investigation was undertaken to assess the result of pretreatment of luteolin in sepsis-induced acute lung injury in mice and its mechanism of action. Luteolin was administered intraperitoneally one hour before caecal ligation and puncture (CLP) surgery in mice. Acute lung injury was assessed by estimation of different parameters like lung edema, protein content, cytokines level, oxidative stress, inducible nitric oxide synthase (iNOS), intercellular adhesion molecule (ICAM)-1 expression and histopathology...
April 11, 2018: Cytokine
https://www.readbyqxmd.com/read/29617417/role-of-protein-kinase-c-delta-in-regulating-platelet-activation-and-platelet-leukocyte-interaction-during-sepsis
#14
Elisabetta Liverani, Mark J Mondrinos, Shuang Sun, Satya P Kunapuli, Laurie E Kilpatrick
Sepsis is characterized by an intense systemic inflammatory response activating a cascade of proinflammatory events resulting in leukocyte dysregulation and host tissue damage. The lung is particularly susceptible to systemic inflammation, leading to acute lung injury. Key to inflammation-induced lung damage is the excessive migration of neutrophils across the vascular endothelium. The mechanisms which regulate neutrophil activation and migration in sepsis are not well defined but there is growing evidence that platelets are actively involved and play a key role in microvascular permeability and neutrophil-mediated organ damage...
2018: PloS One
https://www.readbyqxmd.com/read/29608552/gts-21-reduces-inflammation-in-acute-lung-injury-by-regulating-m1-polarization-and-function-of-alveolar-macrophages
#15
Jing Wang, Ruiting Li, Zhiyong Peng, Wenhai Zhou, Bo Hu, Xin Rao, Xiao Yang, Jianguo Li
BACKGROUND: Acute lung injury (ALI) is a severe outcome of sepsis. Alveolar macrophages (AMs) play key roles in defense, resolution in ALI. The polarization of AMs is dependent on micro environmental stimuli and might influence the progression of ALI. GTS-21, a selective α7 nicotinic acetylcholine receptor agonist of the cholinergic anti-inflammatory pathway (CAP), has recently been established to be promising in the treatment of ALI. However, the molecular mechanism underlying the GTS-21-mediated suppression of inflammatory responses has been explored only partially...
March 30, 2018: Shock
https://www.readbyqxmd.com/read/29602309/regenerative-abilities-of-mesenchymal-stem-cells-through-mitochondrial-transfer
#16
REVIEW
Swati Paliwal, Rituparna Chaudhuri, Anurag Agrawal, Sujata Mohanty
The past decade has witnessed an upsurge in studies demonstrating mitochondrial transfer as one of the emerging mechanisms through which mesenchymal stem cells (MSCs) can regenerate and repair damaged cells or tissues. It has been found to play a critical role in healing several diseases related to brain injury, cardiac myopathies, muscle sepsis, lung disorders and acute respiratory disorders. Several studies have shown that various mechanisms are involved in mitochondrial transfer that includes tunnel tube formation, micro vesicle formation, gap junctions, cell fusion and others modes of transfer...
March 30, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29587748/regulation-of-alveolar-macrophage-death-in-acute-lung-inflammation
#17
REVIEW
Erica K Y Fan, Jie Fan
Acute lung injury (ALI) and its severe form, known as acute respiratory distress syndrome (ARDS), are caused by direct pulmonary insults and indirect systemic inflammatory responses that result from conditions such as sepsis, trauma, and major surgery. The reciprocal influences between pulmonary and systemic inflammation augments the inflammatory process in the lung and promotes the development of ALI. Emerging evidence has revealed that alveolar macrophage (AM) death plays important roles in the progression of lung inflammation through its influence on other immune cell populations in the lung...
March 27, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29573141/a-multicenter-investigation-of-respiratory-syncytial-viral-infection-in-children-with-hematopoietic-cell-transplantation
#18
Courtney M Rowan, Shira J Gertz, Matt S Zinter, Jerelyn Moffet, Rajinder Ps Bajwa, Jessie L Barnum, Michele Kong
BACKGROUND: Hematopoietic cell transplant (HCT) may be a risk factor for morbidity and mortality from respiratory syncytial virus (RSV). Previous studies have been limited by small sample size. We took a multicenter approach with the goal of better understanding the epidemiology, risk factors, treatment, morbidity and mortality associated with RSV infections among children with HCT in the United States. METHODS: A retrospective, multicenter, cohort study of pediatric HCT recipients diagnosed with RSV infection between January 2010 and December 2014...
March 23, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29567042/face-and-content-validity-of-variables-associated-with-the-difficult-to-sedate-child-in-the-paediatric-intensive-care-unit-a-survey-of-paediatric-critical-care-clinicians
#19
Ruth M Lebet, Lisa A Asaro, Athena F Zuppa, Martha A Q Curley
BACKGROUND: Clinicians recognise that some critically ill children are difficult-to-sedate. It may be possible to identify this clinical phenotype for sedation response using statistical modelling techniques adopted from machine learning. This requires identification of a finite number of variables to include in the statistical model. OBJECTIVE: To establish face and content validity for 17 candidate variables identified in the international literature as characteristic of the difficult-to-sedate child phenotype...
March 19, 2018: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/29555594/ultrastructural-alteration-of-pulmonary-capillary-endothelial-glycocalyx-during-endotoxemia
#20
Risa Inagawa, Hideshi Okada, Genzou Takemura, Kodai Suzuki, Chihiro Takada, Hirohisa Yano, Yoshiaki Ando, Takahiro Usui, Yasuaki Hotta, Nagisa Miyazaki, Akiko Tsujimoto, Ryogen Zaikokuji, Atsumu Matsumoto, Tomonori Kawaguchi, Tomoaki Doi, Takahiro Yoshida, Shozo Yoshida, Keisuke Kumada, Hiroaki Ushikoshi, Izumi Toyoda, Shinji Ogura
BACKGROUND: The most recent diagnostic criteria for sepsis includes organ failure. Microvascular endothelial injury is thought to lead to the multiple organ failure seen in sepsis, although the precise mechanism is still controversial. Acute respiratory distress syndrome (ARDS) is the primary complication during the sequential development of multiple organ dysfunction in sepsis, and endothelial injury is deeply involved. Sugar-protein glycocalyx coats all healthy vascular endothelium, and its disruption is one factor thought to contribute to microvascular endothelial dysfunction during sepsis...
March 16, 2018: Chest
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