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mycoplasma pneumoniae

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https://www.readbyqxmd.com/read/29682880/activation-of-nlrp3-inflammasome-in-macrophages-by-mycoplasmal-lipoproteins-and-lipopeptides
#1
Ayumi Saeki, Masahiro Sugiyama, Akira Hasebe, Toshihiko Suzuki, Ken-Ichiro Shibata
The NLRP3 inflammasome, an intracellular sensor consisting of the NOD-like receptor family, pyrin domain containing 3 (NLRP3), the adaptor protein apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC), and procaspase-1, plays critical roles in host defense against microbial pathogens by inducing production of interleukin (IL)-1β and IL-18. Mycoplasma salivarium and Mycoplasma pneumoniae cells activated murine bone marrow-derived macrophages (BMMs) to induce production of IL-1α, IL-1β, and IL-18...
April 23, 2018: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/29681203/the-immunotherapy-of-guillain-barr%C3%A3-syndrome
#2
Paula Restrepo-Jiménez, Yhojan Rodríguez, Paulina González, Christopher Chang, M Eric Gershwin, Juan-Manuel Anaya
Guillain-Barré syndrome is the most common cause of acute flaccid paralysis worldwide. Microorganisms such as Campylobacter jejuni, Cytomegalovirus, Epstein-Barr virus, Mycoplasma pneumoniae, Haemophilus influenza and Zika virus have been linked to the disease. The most common clinical variants are acute inflammatory demyelinating polyneuropathy and acute motor axonal neuropathy. Plasma exchange and intravenous immunoglobulins are the standard therapy for the disease. Areas covered: research to elucidate the pathophysiology of Guillain-Barré syndrome has led to the development of drugs directed towards new potential therapeutic targets...
April 23, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29676360/detection-of-immunoglobulin-m-and-immunoglobulin-g-antibodies-to-mycoplasma-pneumoniae-in-children-with-community-acquired-lower-respiratory-tract-infections
#3
Surinder Kumar, Indu Bala Garg, Gulshan Rai Sethi, Sanchit Kumar, Sanjeev R Saigal
Context: Mycoplasma pneumoniae (M. pneumoniae) causes up to 40% of community-acquired pneumonia in children. It is impossible to identify M. pneumoniae infection on the basis of clinical signs, symptoms, and radiological features. Therefore, correct etiological diagnosis strongly depends on laboratory diagnosis. Aims: This study aims to investigate the role of M. pneumonia e in pediatric lower respiratory tract infections (LRTIs) employing enzyme-linked immunosorbent assays (ELISA) and particle agglutination (PA) test...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29671903/a-review-of-mycoplasma-diagnostics-in-cattle
#4
REVIEW
Alysia M Parker, Paul A Sheehy, Mark S Hazelton, Katrina L Bosward, John K House
Mycoplasma species have a global distribution causing serious diseases in cattle worldwide including mastitis, arthritis, pneumonia, otitis media and reproductive disorders. Mycoplasma species are typically highly contagious, are capable of causing severe disease, and are difficult infections to resolve requiring rapid and accurate diagnosis to prevent and control disease outbreaks. This review discusses the development and use of different diagnostic methods to identify Mycoplasma species relevant to cattle, with a particular focus on Mycoplasma bovis...
April 19, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29669774/transient-immune-mediated-agranulocytosis-following-mycoplasma-pneumoniae-infection
#5
Luani Barge, Gail Pahn, Nicholas Weber
Mycoplasma pneumoniae is a common respiratory pathogen which may cause haematological manifestations including haemolytic anaemia and thrombocytopaenia. Severe neutropaenia is rare with very few cases reported in the literature. An 85-year-old man was transferred to our facility with agranulocytosis in the context of an infective exacerbation of chronic obstructive pulmonary disease with positive serological testing for M. pneumoniae. No alternative infective, autoimmune or lymphoproliferative cause of the neutropaenia was identified...
April 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29658455/-efficacy-of-early-treatment-via-fiber-bronchoscope-in-children-with-mycoplasma-pneumoniae-pneumonia-complicated-by-airway-mucus-obstruction
#6
Li-Jie Cao, Jian-Hua Liu, Jin-Feng Shuai, Bo Niu, Su-Kun Lu, Kun-Ling Huang
OBJECTIVE: To study the efficacy of early treatment via fiber bronchoscope in children with Mycoplasma pneumoniae pneumonia (MPP) complicated by airway mucus obstruction. METHODS: According to the time from admission to the treatment via fiber bronchoscope, the children with MPP who were found to have airway mucus obstruction under a fiber bronchoscope were randomly divided into early intervention group (≤3 days; n=40) and late intervention group (>3 days; n=56)...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29624763/hydrogen-peroxide-production-and-myo-inositol-metabolism-as-important-traits-for-virulence-of-mycoplasma-hyopneumoniae
#7
M G Ferrarini, S G Mucha, D Parrot, G Meiffren, J F R Bachega, G Comte, A Zaha, M F Sagot
Mycoplasma hyopneumoniae is the causative agent of enzootic pneumonia. In our previous work, we reconstructed the metabolic models of this species along with two other mycoplasmas from the respiratory tract of swine: Mycoplasma hyorhinis, considered less pathogenic but which nonetheless causes disease and Mycoplasma flocculare, a commensal bacterium. We identified metabolic differences that partially explained their different levels of pathogenicity. One important trait was the production of hydrogen peroxide from the glycerol metabolism only in the pathogenic species...
April 6, 2018: Molecular Microbiology
https://www.readbyqxmd.com/read/29614161/evaluation-of-the-direct-antiglobulin-test-dat-in-the-setting-of-mycoplasma-pneumoniae-infection
#8
Brady Stein, Nicole DeCredico, Luke Hillman
No abstract text is available yet for this article.
April 3, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29607301/contemporary-situation-of-community-acquired-pneumonia-in-china-a-systematic-review
#9
Ying-Gang Zhu, Xiao-Dan Tang, Yun-Tao Lu, Jing Zhang, Jie-Ming Qu
The prevalence and microbial pattern reported for Community-acquired pneumonia (CAP) differ considerably and contemporary situation remains changing over time. We therefore searched both international and domestic databases for relevant references and pooled incidence of CAP and etiological distribution were estimated separately between children and adults groups. The results showed that CAP remained a major public health issue in China, with a relatively higher incidence than that reported in Western countries...
March 2018: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/29605556/re-evaluation-of-the-etiology-and-clinical-and-radiological-features-of-community-acquired-lobar-pneumonia-in-adults
#10
Takashi Ishiguro, Yutaka Yoshii, Tetsu Kanauchi, Toshiko Hoshi, Yotaro Takaku, Naho Kagiyama, Kazuyoshi Kurashima, Noboru Takayanagi
OBJECTIVE: The aims of this study were to elucidate the frequency and etiology of community-acquired lobar pneumonia (CALP) and the clinical and radiological differences between CALP and tuberculous lobar pneumonia (TLP). PATIENTS AND METHODS: We retrospectively reviewed medical records of patients with community-acquired pneumonia (CAP) (n = 1032) and tuberculosis (n = 1101) admitted to our hospital. RESULTS: Sixty-nine (6.7%) patients with CAP and 23 (2...
March 28, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29605219/bacterial-pneumonia-in-kidney-transplant-recipients
#11
REVIEW
D Wilmes, E Coche, H Rodriguez-Villalobos, N Kanaan
Bacterial pathogens are the most frequent cause of pneumonia after transplantation. Early after transplantation, recipients are at higher risk for nosocomial infections. The most commonly encountered pathogens during this period are gram-negative bacilli (Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa …), but gram-positive coccus such as Staphylococcus aureus or Streptococcus pneumoniae and anaerobic bacteria can also be found. Empirical antibiotic therapy should be guided by previous colonisation of the recipient and bacterial resistance pattern in the hospital...
April 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29603531/a-new-multiplex-real-time-taqman-%C3%A2-pcr-for-quantification-of-mycoplasma-hyopneumoniae-m-hyorhinis-and-m-flocculare-exploratory-epidemiological-investigations-to-research-mycoplasmal-association-in-enzootic-pneumonia-like-lesions-in-slaughtered-pigs
#12
Sarah Fourour, Christelle Fablet, Véronique Tocqueville, Virginie Dorenlor, Florent Eono, Eric Eveno, Isabelle Kempf, Corinne Marois-Créhan
AIMS: A new multiplex qPCR targeting Mycoplasma (M.) hyopneumoniae, M. hyorhinis and M. flocculare was developed and the relationship between the detection of those mycoplasma species and the extent of gross pneumonia like lesions in slaughtered pigs lungs were investigated. METHODS AND RESULTS: The multiplex qPCR method targets the p102, p37 and fruA genes and has detection limits of 14, 146, and 16 genome equivalents μl-1 for M. hyopneumoniae, M. hyorhinis and M...
March 30, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29603035/clinical-characteristics-of-infections-caused-by-mycoplasma-pneumoniae-p1-genotypes-in-children
#13
Jasna Rodman Berlot, Uroš Krivec, Marina Praprotnik, Tatjana Mrvič, Rok Kogoj, Darja Keše
Mycoplasma pneumoniae (M. pneumoniae) isolates can be classified into two major genetic groups, P1 type 1 (MP1) and P1 type 2 (MP2), based on the DNA sequence of the P1 adhesion protein gene. The aim of our study was to determine if M. pneumoniae P1 genotype is associated with disease manifestation and severity of acute M. pneumoniae infection. We compared epidemiological and clinical data of children infected with either MP1 or MP2. In addition, we separately analysed data of patients presenting with individual manifestations of M...
March 30, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29602809/genome-wide-analysis-of-mycoplasma-bovirhinis-gs01-reveals-potential-virulence-factors-and-phylogenetic-relationships
#14
Shengli Chen, Huafang Hao, Ping Zhao, Yongsheng Liu, Yuefeng Chu
Mycoplasma bovirhinis is a significant etiology in bovine pneumonia and mastitis, but our knowledge about the genetic and pathogenic mechanisms of M. bovirhinis is very limited. In this study, we sequenced the complete genome of M. bovirhinis strain GS01 isolated from the nasal swab of pneumonic calves in Gansu, China, and we found that its genome forms a 847,985 bp single circular chromosome with a GC content of 27.57% and with 707 protein-coding genes. The putative virulence determinants of M. bovirhinis were then analyzed...
March 30, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29595632/refractory-mycoplasma-pneumoniae-pneumonia-with-concomitant-acute-cerebral-infarction-in-a-child-a-case-report-and-literature-review
#15
REVIEW
Xingnan Jin, Yingxue Zou, Jia Zhai, Jie Liu, Bing Huang
RATIONALE: Mycoplasma pneumoniae pneumonia, a common cause of community-acquired pneumonia in children, is rarely complicated with acute cerebral infarction. PATIENT CONCERNS: We present a 7-year-old boy with severe M pneumoniae pneumonia who developed impaired consciousness, aphasia, and reduced limb muscle power 7 days postadmission. DIAGNOSES: Mycoplasma pneumoniae pneumonia with concomitant acute cerebral infarction. INTERVENTIONS: The patient recovered with aggressive antibiotic therapy, antiinflammation therapy with methylprednisolone, and gamma immunoglobulin and anticoagulation therapy with aspirin and low molecular weight heparin along with rehabilitation training...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29593057/multicenter-evaluation-of-the-biofire-filmarray-respiratory-panel-2-for-the-detection-of-viruses-and-bacteria-in-nasopharyngeal-swab-samples
#16
Amy L Leber, Kathy Everhart, Judy A Daly, Aubrey Hopper, Amanda Harrington, Paul Schreckenberger, Kathleen McKinley, Matthew Jones, Kristen Holmberg, Bart Kensinger
The FilmArray® Respiratory Panel 2 (RP2) is a multiplex in vitro diagnostic test for the simultaneous and rapid (∼45 minutes) detection of 22 pathogens directly from nasopharyngeal swab (NPS) samples. It contains updated (and in some instances redesigned) assays that improve upon the FilmArray® Respiratory Panel (RP; version 1.7), with a faster run time. The organisms identified are adenovirus, coronavirus 229E, coronavirus HKU1, coronavirus NL63, coronavirus OC43, human metapneumovirus, human rhinovirus/enterovirus, influenza A, influenza A H1, influenza A H1-2009, influenza A H3, influenza B, parainfluenza virus 1, parainfluenza virus 2, parainfluenza virus 3, parainfluenza virus 4, respiratory syncytial virus, Bordetella pertussis , Chlamydia pneumoniae , and Mycoplasma pneumoniae...
March 28, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29582590/gap-analysis-of-mycoplasma-bovis-disease-diagnosis-and-control-an-aid-to-identify-future-development-requirements
#17
M J Calcutt, I Lysnyansky, K Sachse, L K Fox, R A J Nicholas, R D Ayling
There is a worldwide problem of disease caused by Mycoplasma (M.) bovis in cattle; it has a significant detrimental economic and animal welfare impact on cattle rearing. Infection can manifest as a plethora of clinical signs including mastitis, pneumonia, arthritis, keratoconjunctivitis, otitis media and genital disorders that may result in infertility and abortion. Current diagnosis and control information are reviewed and analysed to identify gaps in knowledge of the causative organism in respect of the disease pathology, diagnosis and control methods...
March 27, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29573404/correlation-of-natural-autoantibodies-and-cardiovascular-disease-related-antibacterial-antibodies-in-pericardial-fluid-of-cardiac-surgery-patients
#18
D Simon, O Gilicze, N Farkas, J Najbauer, P Németh, L Lénárd, T Berki
Our previous studies showed that anti-citrate synthase (a-CS) IgM natural autoantibodies are present in healthy individuals without previous antigen stimulation, but no studies have investigated their presence in the pericardial fluid (PF). Therefore we detected the natural anti-CS IgG/M autoantibody levels in plasma and PF of cardiac surgery patients and investigated their relationship with cardiovascular disease-associated bacterial pathogens. PF and blood samples of 22 coronary artery bypass graft (CABG) and 10 aortic valve replacement (AVR) patients were tested for total Ig levels, natural autoantibodies and infection-related antibodies using ELISA and Luminex methods...
March 24, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29559786/epidemiology-microbiology-and-treatment-patterns-of-pediatric-patients-hospitalized-with-pneumonia-at-two-hospitals-in-china-a-patient-chart-review-study
#19
Zehuai Wen, Jia Wei, Huiling Xue, Yunqin Chen, David Melnick, Jesus Gonzalez, Judith Hackett, Xiaoyan Li, Zhaolong Cao
Background: The etiology, epidemiology, treatment patterns, and clinical outcomes of neonatal and pediatric pneumonia patients in China are not well reported. This retrospective chart review study aimed to describe such information among neonatal (0 to 27 days) and pediatric (28 days to <18 years) pneumonia patients in two regions of China. Methods: Electronic medical records of pneumonia hospitalizations (aged <18 years) admitted between 2008 and 2013 from four hospitals under Guangdong Provincial Hospital of Chinese Medicine (Southern China) and between 2010 and 2014 at Peking University People's Hospital (Beijing, Northern China) were reviewed...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29559400/mycoplasma-pneumoniae-related-erythema-multiforme-clinical-and-histological-features-a-single-center-series-of-33-cases-compared-to-100-cases-induced-by-other-causes
#20
Reyhan Amode, Saskia Ingen-Housz-Oro, Nicolas Ortonne, Touda Bounfour, Sabine Pereyre, Frédéric Schlemmer, Emilie Bequignon, Gérard Royer, Pierre Wolkenstein, Olivier Chosidow
BACKGROUND: Mycoplasma pneumoniae (MP) infection has been documented in erythema multiforme (EM) and Stevens-Johnson syndrome-toxic epidermal necrosis (SJS-TEN). Clinical aspects of MP-related EM (MP-EM) have been poorly described in the literature. OBJECTIVE: To highlight differences between MP-EM and non-MP-EM. METHODS: This monocenter retrospective cohort study included all the patients admitted for EM from 2000 to 2015 in our dermatology department...
March 17, 2018: Journal of the American Academy of Dermatology
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