keyword
MENU ▼
Read by QxMD icon Read
search

ards rat

keyword
https://www.readbyqxmd.com/read/29436612/seawater-inhalation-induces-acute-lung-injury-via-ros-generation-and-the-endoplasmic-reticulum-stress-pathway
#1
Peng-Cheng Li, Bo-Rong Wang, Cong-Cong Li, Xi Lu, Wei-Sheng Qian, Yu-Juan Li, Fa-Guang Jin, De-Guang Mu
Seawater (SW) inhalation can induce acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). In the present study, SW induced apoptosis of rat alveolar epithelial cells and histopathological alterations to lung tissue. Furthermore, SW administration increased generation of reactive oxygen species (ROS), whereas pretreatment with the ROS scavenger, N‑acetyl‑L‑cysteine (NAC), significantly decreased ROS generation, apoptosis and histopathological alterations. In addition, SW exposure upregulated the expression levels of glucose‑regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP), which are critical proteins in the endoplasmic reticulum (ER) stress response, thus indicating that SW may activate ER stress...
February 12, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29425776/the-effects-of-hemoglobin-glutamer-200-and-ino-on-pulmonary-vascular-tone-and-arterial-oxygenation-in-an-experimental-acute-respiratory-distress-syndrome
#2
Maria Theresa Voelker, Andreas Bergmann, Thilo Busch, Nora Jahn, Sven Laudi, Katharina Noreikat, Philipp Simon, Sven Bercker
INTRODUCTION: Hemoglobin-based oxygen carriers (HBOC) have been developed as an alternative to blood transfusions. Their nitric-oxide-scavenging properties HBOC also induce vasoconstriction. In acute lung injury, an excess of nitric oxide results in a general vasodilation, reducing oxygenation by impairing the hypoxic pulmonary vasoconstriction. Inhaled nitric oxide (iNO) is used to correct the ventilation perfusion mismatch. We hypothesized that the additional use of HBOC might increase this effect...
February 6, 2018: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29420904/unstable-inflation-causing-injury-insight-from-prone-position-and-paired-ct-scans
#3
Yi Xin, Maurizio Cereda, Hooman Hamedani, Mehrdad Pourfathi, Sarmad Siddiqui, Natalie Meeder, Stephen Kadlecek, Ian Duncan, Harrilla Profka, Jennia Rajaei, Nicholas J Tustison, James C Gee, Brian P Kavanagh, Rahim R Rizi
BACKGROUND: It remains unclear how prone positioning improves survival in acute respiratory distress syndrome (ARDS). Using serial computed tomography (CT), we previously reported that 'unstable' inflation, i.e. partial aeration with large tidal density swings (indicating increased local strain) is associated with injury progression. We prospectively tested whether prone position contains the early propagation of experimental lung injury by stabilizing inflation. METHODS: Injury was induced by tracheal hydrochloric acid (HCl) in rats; after randomization to supine or prone position, injurious ventilation was commenced using high tidal volume and low PEEP...
February 8, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29419339/emphysema-induced-by-elastase-alters-the-mrna-relative-levels-from-dna-repair-genes-in-acute-lung-injury-in-response-to-sepsis-induced-by-lipopolysaccharide-administration-in-wistar-rats
#4
Luiz Philippe S Sergio, Leda M F Lucinda, Maycon M Reboredo, Flavia de Paoli, Lídia M C Fonseca, Bruno V Pinheiro, Andre L Mencalha, Adenilson S Fonseca
Purpose/Aim of the study: Patients suffering from chronic obstructive pulmonary disease (COPD) in association with acute respiratory distress syndrome (ARDS) present oxidative stress in lung cells, with production of free radicals and DNA lesions in pulmonary and adjacent cells. Once the DNA molecule is damaged, a set of enzymatic mechanisms are trigged to preserve genetic code integrity and cellular homeostasis. These enzymatic mechanisms include the base and the nucleotide excision repair pathways, as well as telomere regulation...
February 8, 2018: Experimental Lung Research
https://www.readbyqxmd.com/read/29415950/acute-exposure-to-crotonaldehyde-induces-dysfunction-of-immune-system-in-male-wistar-rats
#5
Limeng Wang, Zhihua Yang, Long Xu, Xiujie Pan, Xingyu Liu, Junwei Zhao, Xiang Li, Maoxiang Zhu, Jianping Xie
Crotonaldehyde is a ubiquitous air pollutant in the environment. It is reported to be harmful to the biosystems in vivo and in vitro. The exposure to crotonaldehyde irritates the mucous membranes and induces edema, hyperemia, cell necrosis, inflammation, and acute respiratory distress syndrome in the lungs. However, the effects of crotonaldehyde on the immune system have not been reported. In the present study, 6-8 weeks old male Wistar rats were exposed to crotonaldehyde by intratracheal instillation at doses of 4, 8, and 16 μL/kg body weight (b...
2018: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29402831/nf-%C3%AE%C2%BAb-induced-microrna-211-inhibits-interleukin-10-in-macrophages-of-rats-with-lipopolysaccharide-induced-acute-respiratory-distress-syndrome
#6
Shengyun Wang, Zhenjie Li, Qitong Chen, Lv Wang, Jinhao Zheng, Zhaofen Lin, Wenfang Li
BACKGROUND/AIMS: The present study addressed the potential involvement of microRNAs in acute respiratory distress syndrome (ARDS)-related inflammation and elucidates the underlying molecular mechanism. METHODS: ARDS rat model was established by lipopolysaccharide, with compromised gas exchange capacity and lung edema. The inflammatory cells from bronchoalveolar lavage fluid (BALF) were profiled with automatic blood cell analyzer. The relative fluorescence intensity of BALF-derived macrophages was analyzed by flow cytometry...
January 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29350567/pretreatment-of-ferulic-acid-attenuates-inflammation-and-oxidative-stress-in-a-rat-model-of-lipopolysaccharide-induced-acute-respiratory-distress-syndrome
#7
Sheng Zhang, Pengyu Wang, Pengxin Zhao, Dong Wang, Yanwei Zhang, Junhui Wang, Lixia Chen, Wenping Guo, Hui Gao, Yalou Jiao
Acute respiratory distress syndrome (ARDS) is a fatal clinical condition that can be caused by pulmonary and non-pulmonary diseases. Oxidative stress and inflammation play key roles in the development of ARDS. In this study, we investigated whether ferulic acid (FA), an anti-oxidant, was beneficial for prophylaxis of ARDS. We established an ARDS rat model using lipopolysaccharide (LPS) administration. Lung injury was assessed by lung wet/dry ratio and broncho-alveolar lavage fluid (BALF) analysis. Hematoxylin and eosin staining was performed to evaluate the histological changes of the lungs...
January 2018: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/29324568/effects-of-pressure-support-ventilation-on-ventilator-induced-lung-injury-in-mild-acute-respiratory-distress-syndrome-depend-on-level-of-positive-end-expiratory-pressure
#8
Paulo A F Magalhães, Gisele de A Padilha, Lillian Moraes, Cíntia L Santos, Ligia de A Maia, Cassia L Braga, Maria do Carmo M B Duarte, Lívia B Andrade, Alberto Schanaider, Vera L Capellozzi, Robert Huhle, Marcelo Gama de Abreu, Paolo Pelosi, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats...
January 10, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29316749/-effects-of-baicalin-on-the-changes-in-hemorheology-of-acute-respiratory-distress-syndrome-in-rats
#9
Z M Zhao, Y M Zheng, Y L Zhang, S Q Li
Objective: To investigate the effect of baicalin on the changes in hemorheology and its mechanism during the development of Acute Respiratory Distress Syndrome(ARDS) induced by oleic acid (OA) in rats. Methods: Rats were randomized into 3 groups: control, ARDS (OA induction, 0.12 mg/kg) and ba-icalin-treated group (300 mg/kg). The blood samples were collected at 30 min, 1, 2, 3, 6, 12 and 6 h after OA injection. The whole blood viscosity, plasma viscosity, Maximum erythrocyte deformability index (DImax) were detected...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29304864/hypercapnia-induces-il-1%C3%AE-overproduction-via-activation-of-nlrp3-inflammasome-implication-in-cognitive-impairment-in-hypoxemic-adult-rats
#10
Hong-Guang Ding, Yi-Yu Deng, Ren-Qiang Yang, Qiao-Sheng Wang, Wen-Qiang Jiang, Yong-Li Han, Lin-Qiang Huang, Miao-Yun Wen, Wen-Hong Zhong, Xu-Sheng Li, Fan Yang, Hong-Ke Zeng
BACKGROUND: Cognitive impairment is one of common complications of acute respiratory distress syndrome (ARDS). Increasing evidence suggests that interleukin-1 beta (IL-1β) plays a role in inducing neuronal apoptosis in cognitive dysfunction. The lung protective ventilatory strategies, which serve to reduce pulmonary morbidity for ARDS patients, almost always lead to hypercapnia. Some studies have reported that hypercapnia contributes to the risk of cognitive impairment and IL-1β secretion outside the central nervous system (CNS)...
January 5, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29229270/intratracheal-instillation-of-alveolar-type-ii-cells-enhances-recovery-from-acute-lung-injury-in-rats
#11
Raquel Guillamat-Prats, Ferranda Puig, Marta Camprubí-Rimblas, Raquel Herrero, Anna Serrano-Mollar, Maria Nieves Gómez, Jessica Tijero, Michael A Matthay, Lluís Blanch, Antonio Artigas
BACKGROUND: Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are characterized by excess production of inflammatory factors. Alveolar type II (ATII) cells help repair damaged lung tissue, rapidly proliferating and differentiating into alveolar type I cells after epithelial cell injury. In ALI, the lack of viable ATII favors progression to more severe lung injury. ATII cells regulate the immune response by synthesizing surfactant and other anti-inflammatory proteins and lipids...
November 8, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29229114/estradiol-mediates-the-long-lasting-lung-inflammation-induced-by-intestinal-ischemia-and-reperfusion
#12
Evelyn Thais Fantozzi, Ana Cristina Breithaupt-Faloppa, Fernanda Yamamoto Ricardo-da-Silva, Sara Rodrigues-Garbin, Daniel Cancelli Romero, Adriana da Silva Rodrigues, Yanira Riffo-Vasquez, Wothan Tavares-de-Lima
BACKGROUND: Lung inflammation is one of the main consequences of intestinal ischemia reperfusion (intestinal IR) and, in severe cases, can lead to acute respiratory distress syndrome and death. We have previously demonstrated that estradiol exerts a protective effect on lung edema and cytokine release caused by intestinal IR in male rats. MATERIALS AND METHODS: We investigated the role of estradiol on the generation of interleukin (IL)-1β, IL-10, vascular endothelial growth factor (VEGF), and cytokine-induced neutrophil chemoattractant 1 (CINC-1) in a female rat model of intestinal IR...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29223534/systemic-recovery-and-therapeutic-effects-of-transplanted-allogenic-and-xenogenic-mesenchymal-stromal-cells-in-a-rat-blunt-chest-trauma-model
#13
Elisa Maria Amann, Markus Thomas Rojewski, Sinja Rodi, Daniel Fürst, Jörg Fiedler, Annette Palmer, Sonja Braumüller, Markus Huber-Lang, Hubert Schrezenmeier, Rolf Erwin Brenner
BACKGROUND: Effective therapy of Acute Lung Injury (ALI) is still a major scientific and clinical problem. To define novel therapeutic strategies for sequelae of blunt chest trauma (TxT) like ALI/Acute Respiratory Distress Syndrome, we have investigated the immunomodulatory and regenerative effects of a single dose of ex vivo expanded human or rat mesenchymal stromal cells (hMSCs/rMSCs) with or without priming, immediately after the induction of TxT in Wistar rats. METHODS: We analyzed the histological score of lung injury, the cell count of the broncho alveolar lavage fluid (BAL), the change in local and systemic cytokine level and the recovery of the administered cells 24 h and 5 days post trauma...
December 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29202212/nebulized-heparin-attenuates-pulmonary-coagulopathy-and-inflammation-through-alveolar-macrophages-in-a-rat-model-of-acute-lung-injury
#14
Laura Chimenti, Marta Camprubí-Rimblas, Raquel Guillamat-Prats, Maria Nieves Gomez, Jessica Tijero, Lluis Blanch, Antonio Artigas
Objective Alveolar macrophages play a key role in the development and resolution of acute respiratory distress syndrome (ARDS), modulating the inflammatory response and the coagulation cascade in lungs. Anti-coagulants may be helpful in the treatment of ARDS. This study investigated the effects of nebulized heparin on the role of alveolar macrophages in limiting lung coagulation and inflammatory response in an animal model of acute lung injury (ALI). Methods Rats were randomized to four experimental groups...
November 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29179596/celastrol-attenuates-impairments-associated-with-lipopolysaccharide-induced-acute-respiratory-distress-syndrome-ards-in-rats
#15
Yongjun Wei, Yu Wang
Celastrol, a constituent from a traditional Chinese medicinal herb belonging to the family Celastraceae, has been shown to impart anti-inflammatory properties, in part, by inhibiting NF-κB activity and related induction of pro-inflammatory cytokine formation/release. The present study investigated the effects of celastrol in an animal model of acute respiratory distress syndrome (ARDS) induced by intratracheal administration of lipopolysaccharides (LPSs). Celastrol pre-treatment groups received celastrol by intraperitoneal injection on seven consecutive days before LPS treatment...
December 2017: Journal of Immunotoxicology
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
#16
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/29116998/mesenchymal-stem-cells-from-bone-marrow-adipose-tissue-and-lung-tissue-differentially-mitigate-lung-and-distal-organ-damage-in-experimental-acute-respiratory-distress-syndrome
#17
Johnatas D Silva, Miquéias Lopes-Pacheco, Ana H R Paz, Fernanda F Cruz, Elga B Melo, Milena V de Oliveira, Débora G Xisto, Vera L Capelozzi, Marcelo M Morales, Paolo Pelosi, Elizabeth Cirne-Lima, Patricia R M Rocco
OBJECTIVES: Mesenchymal stem cells-based therapies have shown promising effects in experimental acute respiratory distress syndrome. Different mesenchymal stem cells sources may result in diverse effects in respiratory diseases; however, there is no information regarding the best source of mesenchymal stem cells to treat pulmonary acute respiratory distress syndrome. We tested the hypothesis that mesenchymal stem cells derived from bone marrow, adipose tissue, and lung tissue would lead to different beneficial effects on lung and distal organ damage in experimental pulmonary acute respiratory distress syndrome...
November 7, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29102631/edaravone-attenuates-lipopolysaccharide-induced-acute-respiratory-distress-syndrome-associated-early-pulmonary-fibrosis-via-inhibition-of-oxidative-stress-and-transforming-growth-factor-%C3%AE-1-smad3-signaling
#18
Xida Wang, Rongde Lai, Xiangfen Su, Guibin Chen, Zijing Liang
Pulmonary fibrosis is responsible for the both short-term and long-term outcomes in patients with acute respiratory distress syndrome (ARDS). There is still no effective cure to improve prognosis. The purpose of this study was to investigate whether edaravone, a free radical scavenger, have anti-fibrosis effects in the rat model of ARDS associated early pulmonary fibrosis by lipopolysaccharide (LPS) administration. Rats were subjected to intravenous injection of LPS, and edaravone was given intraperitoneally after LPS administration daily for 7 consecutive days...
November 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29098546/silymarin-mitigates-lung-impairments-in-a-rat-model-of-acute-respiratory-distress-syndrome
#19
Zhongming Zhu, Gengyun Sun
Acute respiratory distress syndrome (ARDS) is a deadly disease and lacks effective treatments. Inflammation and oxidative stress play key roles in ARDS development. We aimed to evaluate the efficacy of pretreatment of silymarin, which has capacities of anti-inflammatory and anti-oxidative stress, in ARDS. We used lipopolysaccharide (LPS) to generate an ARDS rat model, which was pretreated with silymarin. Lung wet/dry ratio and broncho-alveolar lavage fluid (BALF) analyses were performed. Histological changes of the lungs were evaluated using hematoxylin and eosin staining...
November 2, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/29096562/alpha-1-antitrypsin-ameliorates-ventilator-induced-lung-injury-in-rats-by-inhibiting-inflammatory-responses-and-apoptosis
#20
He Zhu, Jianshuai He, Jia Liu, Xin Zhang, Fengyun Yang, Pingting Liu, Shilei Wang
Mechanical ventilation is extensively used to treat patients with lung injury but may result in ventilator-induced lung injury (VILI). The present study investigated the protective effect of alpha 1-antitrypsin (AAT) on VILI. Adult male rats were subjected to sham, ventilation + saline, or ventilation + AAT treatment and lung injuries were evaluated. Peripheral blood and bronchoalveolar lavage fluid (BALF) were obtained to assess systemic and local inflammatory responses, respectively. Mechanical ventilation resulted in lung injury, as evidenced by histological abnormalities as well as elevations in PaO2/FiO2 ratio, the wet-to-dry weight ratio, and the BALF level of proteins...
January 1, 2017: Experimental Biology and Medicine
keyword
keyword
85128
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"