keyword
MENU ▼
Read by QxMD icon Read
search

Pneumonia virus of mice

keyword
https://www.readbyqxmd.com/read/29348862/digital-gene-expression-analysis-in-mice-lung-with-coinfection-of-influenza-and-streptococcus-pneumoniae
#1
Jun Luo, Linlin Zhou, Hongren Wang, Zhen Qin, Li Xiang, Jie Zhu, Xiaojun Huang, Yuan Yang, Wanyi Li, Baoning Wang, Mingyuan Li
Influenza A virus (IAV) and Streptococcus pneumoniae (SP) are two major upper respiratory tract pathogens that can also cause infection in polarized bronchial epithelial cells to exacerbate disease in coinfected individuals which may result in significant morbidity. However, the underlying molecular mechanism is poorly understood. Here, we employed BALB/c ByJ mice inflected with SP, IAV, IAV followed by SP (IAV+SP) and PBS (Control) as models to survey the global gene expression using digital gene expression (DGE) profiling...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29317512/streptococcus-pneumoniae-modulates-staphylococcus-aureus-biofilm-dispersion-and-the-transition-from-colonization-to-invasive-disease
#2
Ryan M Reddinger, Nicole R Luke-Marshall, Shauna L Sauberan, Anders P Hakansson, Anthony A Campagnari
Streptococcus pneumoniae and Staphylococcus aureus are ubiquitous upper respiratory opportunistic pathogens. Individually, these Gram-positive microbes are two of the most common causative agents of secondary bacterial pneumonia following influenza A virus infection, and they constitute a significant source of morbidity and mortality. Since the introduction of the pneumococcal conjugate vaccine, rates of cocolonization with both of these bacterial species have increased, despite the traditional view that they are antagonistic and mutually exclusive...
January 9, 2018: MBio
https://www.readbyqxmd.com/read/29311363/il-1-signaling-prevents-alveolar-macrophage-depletion-during-influenza-and-streptococcus-pneumoniae-coinfection
#3
Shruti Bansal, Vijaya Kumar Yajjala, Christopher Bauer, Keer Sun
Influenza and bacterial coinfection is a significant cause of hospitalization and death in humans during influenza epidemics and pandemics. However, the fundamental protective and pathogenic mechanisms involved in this complex virus-host-bacterium interaction remain incompletely understood. In this study, we have developed mild to lethal influenza and Streptococcus pneumoniae coinfection models for comparative analyses of disease pathogenesis. Specifically, wild-type and IL-1R type 1-deficient (Il1r1-/- ) mice were infected with influenza virus and then superchallenged with noninvasive S...
January 8, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29304863/gm-csf-overexpression-after-influenza-a-virus-infection-prevents-mortality-and-moderates-m1-like-airway-monocyte-macrophage-polarization
#4
E Scott Halstead, Todd M Umstead, Michael L Davies, Yuka Imamura Kawasawa, Patricia Silveyra, Judie Howyrlak, Linlin Yang, Weichao Guo, Sanmei Hu, Eranda Kurundu Hewage, Zissis C Chroneos
BACKGROUND: Influenza A viruses cause life-threatening pneumonia and lung injury in the lower respiratory tract. Application of high GM-CSF levels prior to infection has been shown to reduce morbidity and mortality from pathogenic influenza infection in mice, but the mechanisms of protection and treatment efficacy have not been established. METHODS: Mice were infected intranasally with influenza A virus (PR8 strain). Supra-physiologic levels of GM-CSF were induced in the airways using the double transgenic GM-CSF (DTGM) or littermate control mice starting on 3 days post-infection (dpi)...
January 5, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29298882/host-tumor-suppressor-p18ink4c-functions-as-a-potent-cell-intrinsic-inhibitor-of-%C3%AE-hv68-reactivation-and-pathogenesis
#5
Brian F Niemeyer, Lauren M Oko, Eva M Medina, Darby G Oldenburg, Douglas W White, Carlyne D Cool, Eric T Clambey, Linda F van Dyk
Gammaherpesviruses are common viruses associated with lifelong infection and increased disease risk. Reactivation from latency aids the virus in maintaining infection throughout the life of the host and is responsible for a wide array of disease outcomes. Previously, we demonstrated that the virus encoded cyclin (v-cyclin) of murine gammaherpesvirus 68 (γHV68) is essential for optimal reactivation from latency in normal mice but not in mice lacking the host tumor suppressor, p18INK4c (p18). Whether p18 plays a cell-intrinsic or -extrinsic role in constraining reactivation remains unclear...
January 3, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29212906/osteoblasts-are-rapidly-ablated-by-virus-induced-systemic-inflammation-following-lymphocytic-choriomeningitis-virus-or-pneumonia-virus-of-mice-infection-in-mice
#6
Steven Maltby, Alyssa J Lochrin, Bianca Bartlett, Hock L Tay, Jessica Weaver, Ingrid J Poulton, Maximilian W Plank, Helene F Rosenberg, Natalie A Sims, Paul S Foster
A link between inflammatory disease and bone loss is now recognized. However, limited data exist on the impact of virus infection on bone loss and regeneration. Bone loss results from an imbalance in remodeling, the physiological process whereby the skeleton undergoes continual cycles of formation and resorption. The specific molecular and cellular mechanisms linking virus-induced inflammation to bone loss remain unclear. In the current study, we provide evidence that infection of mice with either lymphocytic choriomeningitis virus (LCMV) or pneumonia virus of mice (PVM) resulted in rapid and substantial loss of osteoblasts from the bone surface...
December 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29177921/inhibitory-effects-and-related-molecular-mechanisms-of-total-flavonoids-in-mosla-chinensis-maxim-against-h1n1-influenza-virus
#7
Xiao-Xia Zhang, Qiao-Feng Wu, Yun-Liang Yan, Feng-Ling Zhang
OBJECTIVE: The Shixiangru (Mosla chinensis Maxim) total flavonoids (STF) mainly contain luteolin and apigenin. The study aims to examine the inhibitory effects of STF on anti-H1N1 influenza virus and its related molecular mechanisms in pneumonia mice. METHODS: The viral pneumonia mice were treated with Ribavirin or various doses of STF. We observed histological changes of lung by immunohistochemistry and measured lung index to value anti-influenza virus effects of STF...
November 24, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29166940/effects-of-urban-coarse-particles-inhalation-on-oxidative-and-inflammatory-parameters-in-the-mouse-lung-and-colon
#8
Cécile Vignal, Muriel Pichavant, Laurent Y Alleman, Madjid Djouina, Florian Dingreville, Esperanza Perdrix, Christophe Waxin, Adil Ouali Alami, Corinne Gower-Rousseau, Pierre Desreumaux, Mathilde Body-Malapel
BACKGROUND: Air pollution is a recognized aggravating factor for pulmonary diseases and has notably deleterious effects on asthma, bronchitis and pneumonia. Recent studies suggest that air pollution may also cause adverse effects in the gastrointestinal tract. Accumulating experimental evidence shows that immune responses in the pulmonary and intestinal mucosae are closely interrelated, and that gut-lung crosstalk controls pathophysiological processes such as responses to cigarette smoke and influenza virus infection...
November 22, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29155867/spectrum-of-pathogen-and-model-specific-histopathologies-in-mouse-models-of-acute-pneumonia
#9
Kristina Dietert, Birgitt Gutbier, Sandra M Wienhold, Katrin Reppe, Xiaohui Jiang, Ling Yao, Catherine Chaput, Jan Naujoks, Markus Brack, Alexandra Kupke, Christin Peteranderl, Stephan Becker, Carolin von Lachner, Nelli Baal, Hortense Slevogt, Andreas C Hocke, Martin Witzenrath, Bastian Opitz, Susanne Herold, Holger Hackstein, Leif E Sander, Norbert Suttorp, Achim D Gruber
Pneumonia may be caused by a wide range of pathogens and is considered the most common infectious cause of death in humans. Murine acute lung infection models mirror human pathologies in many aspects and contribute to our understanding of the disease and the development of novel treatment strategies. Despite progress in other fields of tissue imaging, histopathology remains the most conclusive and practical read out tool for the descriptive and semiquantitative evaluation of mouse pneumonia and therapeutic interventions...
2017: PloS One
https://www.readbyqxmd.com/read/29153953/inhibition-of-curcumin-on-influenza-a-virus-infection-and-influenzal-pneumonia-via-oxidative-stress-tlr2-4-p38-jnk-mapk-and-nf-%C3%AE%C2%BAb-pathways
#10
Jianping Dai, Liming Gu, Yun Su, Qianwen Wang, Ying Zhao, Xiaoxua Chen, Huixiong Deng, Weizhong Li, Gefei Wang, Kangsheng Li
Oxidative stress, Nrf2-HO-1 and TLR-MAPK/NF-κB signaling pathways have been proved to be involved in influenza A virus (IAV) replication and influenzal pneumonia. In the previous studies, we have performed several high-throughput drug screenings based on the TLR pathways. In the present study, through plaque inhibition test, luciferase reporter assay, TCID50, qRT-PCR, western blotting, ELISA and siRNA assays, we investigated the effect and mechanism of action of curcumin against IAV infection in vitro and in vivo...
November 15, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29153777/vaccination-with-a-human-parainfluenza-virus-type-3-chimeric-fhn-glycoprotein-formulated-with-a-combination-adjuvant-induces-protective-immunity
#11
R Garg, R Brownlie, L Latimer, V Gerdts, A Potter, S van Drunen Littel-van den Hurk
Human parainfluenza virus type 3 (PIV3) is a major cause of lower respiratory disease i.e. bronchitis, bronchiolitis or pneumonia, in infants and young children. Presently there is no licensed vaccine against PIV3. To produce an effective subunit vaccine, a chimeric FHN glycoprotein consisting of the N-terminal ectodomain of the fusion (F) protein linked to the haemagglutinin-neuraminidase (HN) protein without transmembrane domain, and secreted forms of the individual F and HN glycoproteins, were expressed in mammalian cells and purified...
November 16, 2017: Vaccine
https://www.readbyqxmd.com/read/29142177/perinatal-exposure-to-tetrabromobisphenol-a-tbbpa-a-brominated-flame-retardant-exacerbated-the-pneumonia-in-respiratory-syncytial-virus-rsv-infected-offspring-mice
#12
Wataru Watanabe, Akihiko Hirose, Tomomi Takeshita, Seiko Hashiguchi, Kentaro Sakata, Katsuhiko Konno, Aki Miyauchi, Toshi Akashi, Hiroki Yoshida, Chihiro Sugita, Masahiko Kurokawa
To investigate the effects of perinatal exposure to tetrabromobisphenol A (TBBPA), a brominated flame retardant, on the immune system, a respiratory syncytial virus (RSV) infection mouse model was utilized. Female mice were exposed to TBBPA mixed with the diet from 10 days after conception to weaning on postnatal day 21. Offspring mice were infected intranasally with A2 strain of RSV. Although no general toxicological sign was observed, the pulmonary viral titers of offspring mice exposed to 0.1% TBBPA were significantly increased compared with the control on day 5 post-infection...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29128757/lethal-murine-infection-model-for-human-respiratory-disease-associated-pteropine-orthoreovirus
#13
Yuta Kanai, Takahiro Kawagishi, Minoru Okamoto, Yusuke Sakai, Yoshiharu Matsuura, Takeshi Kobayashi
Pteropine orthoreovirus (PRV) is an emerging bat-borne human pathogen causing severe respiratory illness. To date, however, the evaluation of PRV virulence has largely depended on the limited numbers of clinical cases owing to the lack of animal models. To develop an in vivo model of PRV infection, an inbred C3H mouse strain was infected intranasally with pathogenic PRV strain Miyazaki-Bali/2007. C3H mice suffered severe lung infection with significant body weight reduction and died within 7 days after intranasal infection...
November 9, 2017: Virology
https://www.readbyqxmd.com/read/29110727/the-nonstructural-proteins-of-pneumoviruses-are-remarkably-distinct-in-substrate-diversity-and-specificity
#14
Michael Ribaudo, Sailen Barik
BACKGROUND: Interferon (IFN) inhibits viruses by inducing several hundred cellular genes, aptly named 'interferon (IFN)-stimulated genes' (ISGs). The only two RNA viruses of the Pneumovirus genus of the Paramyxoviridae family, namely Respiratory Syncytial Virus (RSV) and Pneumonia Virus of Mice (PVM), each encode two nonstructural (NS) proteins that share no sequence similarity but yet suppress IFN. Since suppression of IFN underlies the ability of these viruses to replicate in the host cells, the mechanism of such suppression has become an important area of research...
November 6, 2017: Virology Journal
https://www.readbyqxmd.com/read/29107075/the-role-of-extracellular-histones-in-influenza-virus-pathogenesis
#15
Harshini K Ashar, Nathan C Mueller, Jennifer M Rudd, Timothy A Snider, Mallika Achanta, Maram Prasanthi, Sivasami Pulavendran, Paul G Thomas, Ramachandran Akhilesh, Jerry R Malayer, Jerry W Ritchey, Rachakatla Rajasekhar, Vincent Tk Chow, Charles T Esmon, Narasaraju Teluguakula
Although exaggerated host immune responses have been implicated in influenza-induced lung pathogenesis, the etiologic factors that contribute to these events are not completely understood. We previously demonstrated that neutrophil extracellular traps exacerbate pulmonary injury during influenza pneumonia. Histones are the major protein components of neutrophil extracellular traps and are known to have cytotoxic effects. Here, we examined the role of extracellular histones in lung pathogenesis during influenza...
October 26, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29070858/soloxolone-methyl-inhibits-influenza-virus-replication-and-reduces-virus-induced-lung-inflammation
#16
Andrey V Markov, Alexandra V Sen'kova, Dawid Warszycki, Oksana V Salomatina, Nariman F Salakhutdinov, Marina A Zenkova, Evgeniya B Logashenko
Highly pathogenic influenza viruses pose a serious public health threat to humans. Although vaccines are available, new antivirals are needed to efficiently control disease progression and virus transmission due to the emergence of drug-resistant viral strains. In this study, we describe the anti-viral properties of Soloxolone methyl (SM) (methyl 2-cyano-3,12-dioxo-18βH-olean-9(11),1(2)-dien-30-oate, a chemical derivative of glycyrrhetinic acid) against the flu virus. Anti-flu efficacy studies revealed that SM exhibits antiviral activity against the H1N1 influenza A virus in a dose-dependent manner causing a more than 10-fold decrease in virus titer and a reduction in the expression of NP and M2 viral proteins...
October 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29066417/combined-aerosolized-toll-like-receptor-ligands-are-an-effective-therapeutic-agent-against-influenza-pneumonia-when-co-administered-with-oseltamivir
#17
Miguel M Leiva-Juarez, Carson T Kirkpatrick, Brian E Gilbert, Brenton Scott, Michael J Tuvim, Burton F Dickey, Scott E Evans, Diane Markesich
Influenza pneumonia remains a common and debilitating viral infection despite vaccination programs and antiviral agents developed for prophylaxis and treatment. The neuraminidase inhibitor oseltamivir is frequently prescribed for established influenza A virus infections, but the emergence of neuraminidase inhibitor resistant viruses, a brief therapeutic window and competing diagnoses complicate its use. PUL-042 is a clinical stage, aerosol drug comprised of synthetic ligands for Toll-like receptor (TLR) 2/6 and TLR 9...
October 21, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29065494/human-metapneumovirus-attachment-protein-contributes-to-neutrophil-recruitment-into-the-airways-of-infected-mice
#18
Nagarjuna R Cheemarla, Antonieta Guerrero-Plata
Human Metapneumovirus (HMPV) is a leading respiratory pathogen that causes lower respiratory tract infections worldwide. Acute HMPV infection induces an exacerbated inflammatory neutrophilic response leading to bronchiolitis and pneumonia. However, the mechanism by which the virus regulates neutrophil infiltration into the airways still remains unexplored. In this work, we used an experimental mouse model of HMPV infection to demonstrate that the attachment (G) protein of HMPV contributes to the recruitment of neutrophils into the airways and modulate the production of neutrophil chemoattractants and Type I IFN responses, specifically IFN-α...
October 22, 2017: Viruses
https://www.readbyqxmd.com/read/29057806/emodin-inhibition-of-influenza-a-virus-replication-and-influenza-viral-pneumonia-via-the-nrf2-tlr4-p38-jnk-and-nf-kappab-pathways
#19
Jian-Ping Dai, Qian-Wen Wang, Yun Su, Li-Ming Gu, Ying Zhao, Xiao-Xua Chen, Cheng Chen, Wei-Zhong Li, Ge-Fei Wang, Kang-Sheng Li
Lasting activations of toll-like receptors (TLRs), MAPK and NF-κB pathways can support influenza A virus (IAV) infection and promote pneumonia. In this study, we have investigated the effect and mechanism of action of emodin on IAV infection using qRT-PCR, western blotting, ELISA, Nrf2 luciferase reporter, siRNA and plaque inhibition assays. The results showed that emodin could significantly inhibit IAV (ST169, H1N1) replication, reduce IAV-induced expressions of TLR2/3/4/7, MyD88 and TRAF6, decrease IAV-induced phosphorylations of p38/JNK MAPK and nuclear translocation of NF-κB p65...
October 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29038764/pulmonary-transcriptomic-responses-indicate-a-dual-role-of-inflammation-in-pneumonia-development-and-viral-clearance-during-2009-pandemic-influenza-infection
#20
Raquel Almansa, Pamela Martínez-Orellana, Lucía Rico, Verónica Iglesias, Alicia Ortega, Beatriz Vidaña, Jorge Martínez, Ana Expósito, María Montoya, Jesús F Bermejo-Martin
BACKGROUND: The interaction between influenza virus and the host response to infection clearly plays an important role in determining the outcome of infection. While much is known on the participation of inflammation on the pathogenesis of severe A (H1N1) pandemic 09-influenza virus, its role in the course of non-fatal pneumonia has not been fully addressed. METHODS: A systems biology approach was used to define gene expression profiles, histology and viral dynamics in the lungs of healthy immune-competent mice with pneumonia caused by a human influenza A (H1N1) pdm09 virus, which successfully resolved the infection...
2017: PeerJ
keyword
keyword
13783
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"