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G Koteswara Reddy, K Nagamalleswara Rao, Kiran Yarrakula
The gene 30S ribosomal protein S2 (30S2) is identified as a potential drug and vaccine target for Pneumonia. Its structural characterization is an important to understand the mechanism of action for identifying its receptor and/or other binding partners. The comparative genomics and proteomics studies are useful for structural characterization of 30S2 in C. Pneumoniae using different bioinformatics tools and web servers. In this study, the protein 30S2 structure was modelled and validated by Ramachandran plot...
November 9, 2016: Computational Biology and Chemistry
Safak Goktas, Mumtaz Cem Sirin
BACKGROUND: Acute respiratory tract infection (ARTI) is one of the most common infections worldwide, causing significant morbidity and mortality. OBJECTIVES: This study was conducted to determine the prevalence and seasonal distribution of respiratory viruses in our region, in children and adults with a pre-diagnosis of ARTI. METHODS: A total of 845 nasopharyngeal swab specimens were analyzed with the RespiFinder Smart 22 kit (PathoFinder BV, Netherlands) and the Rotor-Gene 6000 real-time PCR system...
September 2016: Jundishapur Journal of Microbiology
E Moretti, N Figura, M S Campagna, F Iacoponi, S Gonnelli, G Collodel
OBJECTIVES: To investigate the relationship between chronic infections detected in serum and semen quality. The pathogen burden is a concept consisting in the observation that, in patients with heart disease, damaging effects of the coronary arteries increase concomitantly with the number of agents responsible of chronic infections to which patients mounted a serological response. Previous observations that H. pylori infection may reduce the semen quality prompted us to perform the present study...
October 25, 2016: Urology
Felix S Dube, Mamadou Kaba, F J Lourens Robberts, Lemese Ah Tow, Sugnet Lubbe, Heather J Zar, Mark P Nicol
BACKGROUND: Lower respiratory tract infection in children is increasingly thought to be polymicrobial in origin. Children with symptoms suggestive of pulmonary tuberculosis (PTB) may have tuberculosis, other respiratory tract infections or co-infection with Mycobacterium tuberculosis and other pathogens. We aimed to identify the presence of potential respiratory pathogens in nasopharyngeal (NP) samples from children with suspected PTB. METHOD: NP samples collected from consecutive children presenting with suspected PTB at Red Cross Children's Hospital (Cape Town, South Africa) were tested by multiplex real-time RT-PCR...
October 24, 2016: BMC Infectious Diseases
Elena García, Gerardo Espeso, Rocío Fernández, Ángel Gómez-Martín, José María Rodríguez-Linde, Christian De la Fe
Coxiella (C.) burnetii is the etiological agent of the zoonotic disease known a Q fever. This agent can infect multiple hosts although its pathogenic potential in wild ruminants has been poorly studied. The polymerase chain reaction and the serological test detected the presence of C. burnetii in a population of North African gazelles (n = 355), comprising dorcas gazelle (Gazella dorcas neglecta), dama gazelle (Nanger dama mhorr) and Cuvier's gazelle (Gazella cuvieri) which, some of them, they recently aborted...
January 15, 2017: Theriogenology
Surinder Kumar, Sanjeev R Saigal, Gulshan Rai Sethi, Sanchit Kumar
CONTEXT: Chlamydophila pneumoniae is a common cause of community-acquired respiratory infections, including pneumonia, bronchitis, and upper respiratory tract infections. Since it is difficult to detect C. pneumoniae in clinical practice, specific etiological diagnosis is established only in a minority of cases. AIMS: To investigate the role of C. pneumoniae in community-acquired lower respiratory tract infections (LRTIs) in children, with the use of serological tests and nested polymerase chain reaction (PCR) analysis...
October 2016: Indian Journal of Pathology & Microbiology
Alyce Taylor-Brown, Nathan L Bachmann, Nicole Borel, Adam Polkinghorne
BACKGROUND: Recent molecular studies have revealed considerably more diversity in the phylum Chlamydiae than was previously thought. Evidence is growing that many of these novel chlamydiae may be important pathogens in humans and animals. A significant barrier to characterising these novel chlamydiae is the requirement for culturing. We recently identified a range of novel uncultured chlamydiae in captive snakes in Switzerland, however, nothing is known about their biology. Using a metagenomics approach, the aim of this study was to characterise the genome of a novel chlamydial taxon from the choana of a captive snake...
2016: BMC Genomics
Priya Maheshwari, Guy D Eslick
BACKGROUND: The possibility of an infectious etiology for Alzheimer's disease (AD) has been repeatedly postulated over the past three decades, with the roles of both viruses and bacteria having been investigated. Chlamydophila (formerly Chlamydia) pneumoniae (Cpn) and spirochetal bacteria have been two of the most frequently implicated bacterial groups in AD pathogenesis. OBJECTIVE: A meta-analysis was performed where data was combined from 25 studies examining the association between AD and spirochetal bacteria or Cpn...
August 18, 2016: Journal of Alzheimer's Disease: JAD
M L Marenzoni, G Morganti, I Moretta, S Crotti, F Agnetti, A Moretti, L Pitzurra, P Casagrande Proietti, P Sechi, B Cenci-Goga, M P Franciosini
Microbiological and parasitological investigation was carried out on a colony of feral pigeons, located in a green area near the main hospital of a Central Italy city. One hundred pigeons were submitted to clinical examination. Cloacal swabs, grouped in pool of 4 samples, were analyzed to detect the presence of Coxiella burnetii, Chlamydia psittaci, Chlamydophila spp. using a biomolecular procedure, while individual cloacal samples were examined for Salmonella spp., Campylobacter spp., and yeasts by means of a specific culture media...
2016: Polish Journal of Veterinary Sciences
Yvonne Pannekoek, Qin Qi-Long, Yu-Zhong Zhang, Arie van der Ende
Many studies have aimed to set up boundaries for the classification and definition of prokaryotic genus and species classification; however, studies that focused on genus-level genomic differences for existing taxonomy systems are limited. Recently, a novel method was described for prokaryotic genus delineation using the percentage of conserved proteins (POCP) between two strains to estimate their evolutionary and phenotypic distance (Qin et al. A proposed genus boundary for the prokaryotes based on genomic insights...
August 2016: Pathogens and Disease
Katarzyna Lewandowska, Jan Kuś
Pneumonia remains one of the main reasons of heath care system utilization. Quick diagnosis and prompt treatment initiation determine favorable outcome. Empirical antibiotic treatment allows to achieve treatment success in most patients. Treatment recommendations are based on big epidemiological trials. Nevertheless, it is sometimes necessary to know the definite etiologic factor of pneumonia. In these cases microbiological diagnostics is useful, i.e. sputum microscopy and culture, blood culture, bronchial lavage culture, bacterial antigen tests in urine, molecular tests...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Tara F Carr, Monica Kraft
Chronic bacterial infection is implicated in both the development and severity of asthma. The atypical bacteria Mycoplasma pneumoniae and Chlamydophila pneumoniae have been identified in the airways of asthmatics and correlated with clinical features such as adult onset, exacerbation risks, steroid sensitivity, and symptom control. Asthmatic patients with evidence of bacterial infection may benefit from antibiotic treatment directed towards these atypical organisms. Examination of the airway microbiome may identify microbial communities that confer risk for or protection from severe asthma...
August 2016: Immunology and Allergy Clinics of North America
Elisabetta Caselli, Alessandro Borghi, Martina Maritati, Roberta Gafà, Giovanni Lanza, Dario Di Luca, Annarosa Virgili, Carlo Contini
BACKGROUND: We have previously reported the case of an immunocompetent female patient with a primary cutaneous CD30+ anaplastic large-cell lymphoma (PCALCL) located on her upper right eyelid characterized by the presence of a concurrent active infection by C. pneumoniae and Human herpesvirus 8 (HHV8). This finding suggested for the first time a possible association of C. pneumoniae and/or HHV8 infection, or both together, with PCALCL pathogenesis in non-immunocompromised and HIV-negative subjects...
2016: Infectious Agents and Cancer
Katarzyna Krenke, Ewa Sadowy, Edyta Podsiadły, Waleria Hryniewicz, Urszula Demkow, Marek Kulus
BACKGROUND: An increasing incidence of parapneumonic effusion and pleural empyema (PPE/PE) has been reported in recent studies. As only few data on etiology of PPE/PE in Central Europe have been reported, we undertook a study on the etiology of PPE/PE in children, using both standard culture and molecular techniques. METHODS: This prospective study was conducted between June 2011 and December 2013. Consecutive children with PPE/PE complicating community acquired pneumonia, who required diagnostic/therapeutic thoracentesis were included...
July 2016: Respiratory Medicine
Catia Cillóniz, Antoni Torres, Michael Niederman, Menno van der Eerden, James Chalmers, Tobias Welte, Francesco Blasi
Community-acquired pneumonia (CAP) is associated with high rates of morbidity and mortality worldwide; the annual incidence of CAP among adults in Europe has ranged from 1.5 to 1.7 per 1000 population. Intracellular bacteria are common causes of CAP. However, there is considerable variation in the reported incidence between countries and change over time. The intracellular pathogens that are well established as causes of pneumonia are Legionella pneumophila, Mycoplasma pneumoniae, Chlamydophila pneumoniae, Chlamydophila psittaci, and Coxiella burnetii...
September 2016: Intensive Care Medicine
Ivane Chkhaidze, Dali Zirakishvili, Natalia Shavshvishvili, Neli Barnabishvili
INTRODUCTION: The immune system is known to play a key role in the development of viral-induced wheeze, but the pattern of cytokine response is not clear. The aim of the study was to determine whether plasma cytokine levels during the acute wheezing illness in infants are associated with the subsequent development of persistent recurrent wheezing (PRW). MATERIAL AND METHODS: 43 infants admitted to Iashvili Central Children Hospital, Tbilisi, Georgia, were selected...
2016: Pneumonologia i Alergologia Polska
Gretchen L Parrott, Takeshi Kinjo, Jiro Fujita
Historically, atypical pneumonia was a term used to describe an unusual presentation of pneumonia. Currently, it is used to describe the multitude of symptoms juxtaposing the classic symptoms found in cases of pneumococcal pneumonia. Specifically, atypical pneumonia is a syndrome resulting from a relatively common group of pathogens including Chlamydophila sp., and Mycoplasma pneumoniae. The incidence of M. pneumoniae pneumonia in adults is less than the burden experienced by children. Transmission rates among families indicate children may act as a reservoir and maintain contagiousness over a long period of time ranging from months to years...
2016: Frontiers in Microbiology
Mukhit B Orynbayev, Wendy Beauvais, Abylay R Sansyzbay, Rashida A Rystaeva, Kulyaisan T Sultankulova, Aslan A Kerimbaev, Madina N Kospanova, Richard A Kock
286 serum samples were collected from three sub-populations of saiga in Kazakhstan (Betpakdala, Ustyurt and Volga-Ural) between 2012 and 2014, and were tested for the presence of antibodies to Brucella spp., bluetongue virus, peste des petits ruminants (PPR) virus, Akabane virus, Schmallenberg virus, Chlamydophila, Toxoplasma, Mycobacterium avium subspecies paratuberculosis and Coxiella burnetii (Q Fever). Seropositives to Coxiella burnetii of saiga were detected and the adjusted seroprevalence of Q Fever antibodies was 0...
May 1, 2016: Preventive Veterinary Medicine
Valentina Virginia Ebani, Fabrizio Bertelloni, Paolo Mani
OBJECTIVE: To determine the presence of zoonotic tick-borne bacteria in feral pigeons (Columba livia domestica) from urban areas. METHODS: Spleen samples from 84 feral pigeons, found dead with traumatic injuries in urban areas, were examined by PCR to detect DNA of Anaplasma phagocytophilum, Bartonella spp., Borrelia burgdorferi sensu lato, Coxiella burnetii, Rickettsia spp., and Chlamydophila spp. RESULTS: Twenty (23.8%) pigeons were infected by tick-borne agents, in particular 2 (2...
April 2016: Asian Pacific Journal of Tropical Medicine
Takahiro Sawada, Mitsuhiro Suehiro, Kiho Takaya
No abstract text is available yet for this article.
March 2016: Indian Journal of Dermatology
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