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mycoplasma pneumoniae

Magda Yehia El Seify, Eman Mahmoud Fouda, Hanan Mohamed Ibrahim, Maha Muhammad Fathy, Asmaa Al Husseiny Ahmed, Walaa Shawky Khater, Noha Nagi Mohammed Salah El Deen, Heba Galal Mohamed Abouzeid, Nancy Riyad Ahmed Hegazy, Heba Salah Sayed Elbanna
BACKGROUND: While recognizing the etiology of community-acquired pneumonia is necessary for formulating local antimicrobial guidelines, limited data is published about this etiology in Egyptian pediatric patients. OBJECTIVES: To determine the frequency of bacterial and viral pathogens causing community-acquired pneumonia (CAP) among immunocompetent Egyptian infants and preschool children. METHODS: Ninety infants and preschool-age children admitted to our hospital with CAP were prospectively included in the study...
September 29, 2016: European Journal of Microbiology & Immunology
Wei-Ju Lee, Eng-Yen Huang, Chih-Min Tsai, Kuang-Che Kuo, Yi-Chuan Huang, Kai-Sheng Hsieh, Chen-Kuang Niu, Hong-Ren Yu
Mycoplasma pneumoniae (M. pneumoniae) is an important causative pathogen of community-acquired pneumonia in children. Rapid and reliable laboratory diagnosis of M. pneumoniae infection is important so that appropriate antibiotic treatment can be initiated to reduce the misuse of drugs and resistance rates. Anti-M. pneumoniae immunoglobulin M (IgM) is an indicator of recent primary infection, but can persist for several months after initial infection. It has been suggested that anti-M. pneumoniae immunoglobulin A (IgA) can be a reliable indicator for recent M...
October 19, 2016: Clinical and Vaccine Immunology: CVI
Christopher Browne, Anette Loeffler, Hannah Holt, Yu-Mei Chang, David H Lloyd, Amanda Nevel
Porcine enzootic pneumonia (EP) caused by Mycoplasma hyopneumoniae adversely affects pig welfare and is associated with major economic losses in the pig industry worldwide. Transmission is predominantly by direct contact but the role of indirect transmission remains poorly understood. This study examined survival of six M. hyopneumoniae isolates dried onto five different surfaces encountered in pig units, and exposed to temperatures of 4°C, 25°C and 37°C for up to 12 days. Survival of the organisms was determined by recovering the organism from the surface material and culturing in Friis broth...
October 19, 2016: Letters in Applied Microbiology
Erin E Shaughnessy, Erika L Stalets, Samir S Shah
PURPOSE OF REVIEW: This review covers the outpatient management of pediatric community-acquired pneumonia (CAP), discussing the changing microbiology of CAP since the introduction of the 13-valent pneumococcal conjugate vaccine in 2010, and providing an overview of national guideline recommendations for diagnostic evaluation and treatment. RECENT FINDINGS: Rates of invasive pneumococcal disease and pneumococcal antibiotic resistance have plummeted since widespread 13-valent pneumococcal conjugate vaccine immunization...
October 15, 2016: Current Opinion in Pediatrics
Prawin Kumar, Guruprasad R Medigeshi, Vishnu S Mishra, Mojahidul Islam, Shivani Randev, Aparna Mukherjee, Rama Chaudhry, Arti Kapil, Kana Ram Jat, Rakesh Lodha, Sushil K Kabra
BACKGROUND: There is paucity of studies on etiology of acute respiratory infections (ARI) in infants. OBJECTIVE: To document incidence and etiology of ARI in infants, their seasonal variability and association of clinical profile with etiology. MATERIAL AND METHODS: A birth cohort was followed for the first year of life; for each episode of ARI, nasopharyngeal aspirates were collected to identify the causative respiratory virus/es using multiplex real time PCR assay...
October 6, 2016: Pediatric Infectious Disease Journal
Hui Xie, Ji-Ming Li, Hui-Fen Zhang, Ye Wang, Li-Lin Zhong, Qing-Rong Lian, Hong-Ba Dong
OBJECTIVE: To study the role of Mycoplasma pneumoniae (MP) load and antibody measurements in the diagnosis of MP pneumonia. METHODS: A total of 115 children with MP pneumonia and 400 healthy children were enrolled. The MP load and total antibody level were measured at different stages, and the MP load index (MPLI) was calculated. RESULTS: The cut-off value of MPLI for MP infection was 6.12. MPLI and total antibody titer increased during the course of the disease, while MP-DNA decreased rapidly...
October 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
Susanne Paukner, Rosemarie Riedl
Pleuromutilins are antibiotics that selectively inhibit bacterial translation and are semisynthetic derivatives of the naturally occurring tricyclic diterpenoid pleuromutilin, which received its name from the pleuromutilin-producing fungus Pleurotus mutilus Tiamulin and valnemulin are two established derivatives in veterinary medicine for oral and intramuscular administration. As these early pleuromutilin drugs were developed at a time when companies focused on major antibacterial classes, such as the β-lactams, and resistance was not regarded as an issue, interest in antibiotic research including pleuromutilins was limited...
October 14, 2016: Cold Spring Harbor Perspectives in Medicine
Jing Zhang, Xiaohong Song, Marella J Ma, Li Xiao, Tsuyoshi Kenri, Hongmei Sun, Travis Ptacek, Shaoli Li, Ken B Waites, T Prescott Atkinson, Keigo Shibayama, Kevin Dybvig, Yanmei Feng
AIM: To characterize inter- and intra-strain variability of variable-number tandem repeats (VNTRs) in Mycoplasma pneumoniae to determine the optimal multilocus VNTR analysis scheme for improved strain typing. METHODS: Whole genome assemblies and next-generation sequencing data from diverse M. pneumoniae isolates were used to characterize VNTRs and their variability, and to compare the strain discriminability of new VNTR and existing markers. RESULTS: We identified 13 VNTRs including five reported previously...
October 12, 2016: Future Microbiology
Frederick Palm, Pirkko J Pussinen, Annette Aigner, Heiko Becher, Florian Buggle, Matthias F Bauer, Caspar Grond-Ginsbach, Anton Safer, Christian Urbanek, Armin J Grau
BACKGROUND AND AIMS: Infectious diseases contribute to stroke risk, and are associated with socioeconomic status (SES). We tested the hypotheses that the aggregate burden of infections increases the risk of ischemic stroke (IS) and partly explains the association between low SES and ischemic stroke. METHODS: In a case-control study with 470 ischemic stroke patients and 809 age- and sex-matched controls, randomly selected from the population, antibodies against the periodontal microbial agents Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis, against Chlamydia pneumonia, Mycoplasma pneumoniae (IgA and IgG), and CagA-positive Helicobacter pylori (IgG) were assessed...
October 5, 2016: Atherosclerosis
Prem Kumar Aluka, Dilip M Rampure
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
N S Kochar, S Garg, A Oberoi, S Chopra
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
Mirella Luciani, Gisella Armillotta, Laura Manna, Antonella Ciarelli, Tiziana Di Febo, Ivanka Krasteva, Attilio Pini, Flavio Sacchini, Anna Rita D'Angelo
An immunohistochemical (IHC) technique was optimised using a monoclonal antibody (MAb) to detect Mycoplasma mycoides subsp. mycoides (Mmm), the agent of Contagious Bovine Pleuropneumonia (CBPP), in sections of lung tissue. A panel of MAbs was produced and screened for Mmm speci city and for cross-reactivity against other mycoplasmas belonging and not belonging to the Mycoplasma mycoides cluster, using in parallel indirect ELISA (i-ELISA) and Immunoblotting (IB). Based on i-ELISA and IB characterization data, 1 MAb (clone 3G10E7) was selected and its highest a nity vs Mmm was con rmed by the Quartz Crystal Microbalance (QCM) technology...
July 15, 2016: Veterinaria Italiana
Xiang Xu, John R Greenland, Jeffrey E Gotts, Michael A Matthay, George H Caughey
Host-derived proteases can augment or help to clear infections. This dichotomy is exemplified by cathepsin L (CTSL), which helps Hendra virus and SARS coronavirus to invade cells, but is essential for survival in mice with mycoplasma pneumonia. The present study tested the hypothesis that CTSL protects mice from serious consequences of infection by the orthomyxovirus influenza A, which is thought to be activated by host-supplied proteases other than CTSL. Ctsl-/- mice infected with influenza A/Puerto Rico/8/34(H1N1) had larger lung viral loads and higher mortality than infected Ctsl+/+ mice...
2016: PloS One
Mary E Wood, Karen A Fox, Jessica Jennings-Gaines, Halcyon J Killion, Sierra Amundson, Michael W Miller, William H Edwards
We evaluated bighorn sheep ( Ovis canadensis ) ewes and their lambs in captivity to examine the sources and roles of respiratory pathogens causing lamb mortality in a poorly performing herd. After seven consecutive years of observed December recruitments of <10%, a remnant herd of 13 adult female bighorn sheep from the Gribbles Park herd in Colorado were captured and transported to the Thorne-Williams Wildlife Research Center in Wyoming in March 2013. Ewes were sampled repeatedly over 16 mo. In April 2014, ewes were separated into individual pens prior to lambing...
September 30, 2016: Journal of Wildlife Diseases
Qiuyan Xu, Liqiong Zhang, Chuangli Hao, Wujun Jiang, Hui Tao, Huiquan Sun, Li Huang, Jing Zhou, Liping Fan
BACKGROUND: We aimed to find the relationship between the clinical characteristics and mucus plug formation and developed models to predict mucus plug formation in refractory Mycoplasma pneumoniae pneumonia (RMPP) infection. METHODS: RMPP patients treated with bronchoscopy were retrospectively enrolled in the study between November 2011 and November 2015. Multivariate logistic regression was performed to identify independent predictors of mucus plug formation. RESULTS: Of the 173 RMPP patients enrolled, the mucus plug group accounted for 82 (47...
September 28, 2016: Journal of Tropical Pediatrics
Ken B Waites, Donna M Crabb, Yang Liu, Lynn B Duffy
In vitro activities of omadacycline, a new aminomethylcycline, were determined for Mycoplasma and Ureaplasma spp. in comparison to azithromycin, clindamycin, moxifloxacin, tetracycline, and doxycycline. All omadacycline MICs were < 2 μg/ml. MIC90s were 0.063 μg/ml for Mycoplasma hominis, 0.25 μg/ml for Mycoplasma pneumoniae, and 2 μg/ml for Ureaplasma spp. Omadacycline had the lowest MIC90 among all drugs tested against M. hominis Omadacycline activity was not affected by macrolide, tetracycline, or fluoroquinolone resistance...
September 26, 2016: Antimicrobial Agents and Chemotherapy
Jun He, Mihua Liu, Zhufeng Ye, Tianping Tan, Xinghui Liu, Xiaoxing You, Yanhua Zeng, Yimou Wu
Mycoplasma are the smallest prokaryotic microbes present in nature. These wall‑less, malleable organisms can pass through cell filters, and grow and propagate under cell‑free conditions in vitro. Of the pathogenic Mycoplasma Mycoplasma pneumoniae has been examined the most. In addition to primary atypical pneumonia and community‑acquired pneumonia with predominantly respiratory symptoms, M. pneumoniae can also induce autoimmune hemolytic anemia and other diseases in the blood, cardiovascular system, gastrointestinal tract and skin, and can induce pericarditis, myocarditis, nephritis and meningitis...
September 23, 2016: Molecular Medicine Reports
M Larquey, E Mahé
Postinfectious erythema multiforme is an uncommon skin disease in childhood that can have a strong impact, especially in infants if there is involvement of the mucous membranes. The lesion is targeted (central bullous lesions with three concentric circles). Its diagnosis is typically made clinically. Atypical forms are the highly inflammatory, mainly bullous type, with exclusive involvement of the mucous membrane, or recurrent erythema multiforme. The diagnosis of erythema multiforme is frequently suspected in children with urticaria multiforme...
September 20, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Shaoli Li, Hongmei Sun, Fei Liu, Yanling Feng, Hanqing Zhao, Guanhua Xue, Chao Yan
BACKGROUND: Cases of macrolide-resistant Mycoplasma pneumoniae have increased rapidly since 2000, especially in Asia. Patients infected with macrolide-resistant M pneumoniae usually present with severe M pneumoniae pneumonia. The aim of this study was to identify indicators for whether children at an early stage of M pneumoniae infection develop mild or severe pneumonia. CASE SUMMARY: Herein, we retrospectively reviewed 2 pediatric cases caused by macrolide-resistant M pneumoniae, but with markedly different severity of pneumonia...
September 2016: Medicine (Baltimore)
Miltiadis Fiorentzis, Barbara Käsmann-Kellner, Sascha Meyer, Berthold Seitz, Arne Viestenz
PURPOSE: To report a rare case of bilateral subretinal granulomas with choroidal neovascularization after Mycoplasma pneumoniae atypical pneumonia. METHODS: Presentation of a 7-year-old girl, who showed bilateral atypical subretinal granulomas with choroidal neovascularization. Visual acuity was 20/20 oculus dexter and 20/200 oculus sinister. Evaluation revealed a systemic Mycoplasma pneumoniae infection with pulmonary involvement. Successful ocular treatment was performed by intravitreal injection of Bevacizumab and laser photocoagulation...
September 19, 2016: Retinal Cases & Brief Reports
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