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REPOSITORIES: ENA
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Project description:Metagenomic approach to examine respiratory samples from children with lower respiratory tract infections
| PRJEB7391 | ENA
Project description:16s rRNA of children with viral upper respiratory tract infections
| PRJNA611639 | ENA
Project description:This series includes 278 microarrays used to detect respiratory viruses in a set of nasopharyngeal lavage specimens from children with respiratory tract infections Objective: To assess the utility of a pan-viral DNA microarray platform (Virochip) in the detection of viruses associated with pediatric respiratory tract infections. Study Design: The Virochip was compared to conventional clinical direct fluorescent antibody (DFA) and PCR-based testing for the detection of respiratory viruses in 278 consecutive nasopharyngeal aspirate samples from 222 children. Results: The Virochip was superior in performance to DFA, showing a 19% increase in the detection of 7 respiratory viruses included in standard DFA panels, and was similar to virus-specific PCR (sensitivity 85-90%, specificity 99%, PPV 94-96%, NPV 97-98%) in the detection of respiratory syncytial virus, influenza A, and rhino-/enteroviruses. The Virochip also detected viruses not routinely tested for or missed by DFA and PCR, as well as double infections and infections in critically ill patients that DFA failed to detect. Conclusions: Given its favorable sensitivity and specificity profile and greatly expanded spectrum of detection, microarray-based viral testing holds promise for clinical diagnosis of pediatric respiratory tract infections. Keywords: viral detection The series includes 278 clinical specimens
2010-05-26 | E-GEOD-10294 | biostudies-arrayexpress
Project description:This series includes 278 microarrays used to detect respiratory viruses in a set of nasopharyngeal lavage specimens from children with respiratory tract infections Objective: To assess the utility of a pan-viral DNA microarray platform (Virochip) in the detection of viruses associated with pediatric respiratory tract infections. Study Design: The Virochip was compared to conventional clinical direct fluorescent antibody (DFA) and PCR-based testing for the detection of respiratory viruses in 278 consecutive nasopharyngeal aspirate samples from 222 children. Results: The Virochip was superior in performance to DFA, showing a 19% increase in the detection of 7 respiratory viruses included in standard DFA panels, and was similar to virus-specific PCR (sensitivity 85-90%, specificity 99%, PPV 94-96%, NPV 97-98%) in the detection of respiratory syncytial virus, influenza A, and rhino-/enteroviruses. The Virochip also detected viruses not routinely tested for or missed by DFA and PCR, as well as double infections and infections in critically ill patients that DFA failed to detect. Conclusions: Given its favorable sensitivity and specificity profile and greatly expanded spectrum of detection, microarray-based viral testing holds promise for clinical diagnosis of pediatric respiratory tract infections. Keywords: viral detection
2008-07-09 | GSE10294 | GEO
Project description:The respiratory epithelium is the body’s first line of defense to pathogens, pollutants, and other potentially injurious agents that can be inhaled. Sampling the upper respiratory tract is becoming a widely used technique in the clinic to examine the molecular changes in the diseased airway; however, it is unclear as to whether the responses in the upper respiratory tract (i.e. the nasal turbinates) reflect the changes that occur in the lower respiratory tract (i.e. trachea and lungs). Here, we assessed the responses to poly I:C, a synthetic double-stranded RNA molecule that is meant to mimic the acute effects of a viral infection, in both the upper and lower respiratory tracts of cynomolgus macaques. To do this, we compared the in vivo response after a nasal poly I:C challenge in a nasal scrape samples (performed using a nasal curette) to responses that occurred after ex vivo poly I:C stimulation in nasal scrapes, tracheal epithelial brushings, and lung tissue explants in non-human primates.
2015-10-11 | GSE41672 | GEO
Project description:The respiratory epithelium is the body’s first line of defense to pathogens, pollutants, and other potentially injurious agents that can be inhaled. Sampling the upper respiratory tract is becoming a widely used technique in the clinic to examine the molecular changes in the diseased airway; however, it is unclear as to whether the responses in the upper respiratory tract (i.e. the nasal turbinates) reflect the changes that occur in the lower respiratory tract (i.e. trachea and lungs). Here, we assessed the responses to poly I:C, a synthetic double-stranded RNA molecule that is meant to mimic the acute effects of a viral infection, in both the upper and lower respiratory tracts of cynomolgus macaques. To do this, we compared the in vivo response after a nasal poly I:C challenge in a nasal scrape samples (performed using a nasal curette) to responses that occurred after ex vivo poly I:C stimulation in nasal scrapes, tracheal epithelial brushings, and lung tissue explants in non-human primates.
2015-10-11 | GSE41671 | GEO
Project description:The respiratory epithelium is the body’s first line of defense to pathogens, pollutants, and other potentially injurious agents that can be inhaled. Sampling the upper respiratory tract is becoming a widely used technique in the clinic to examine the molecular changes in the diseased airway; however, it is unclear as to whether the responses in the upper respiratory tract (i.e. the nasal turbinates) reflect the changes that occur in the lower respiratory tract (i.e. trachea and lungs). Here, we assessed the responses to poly I:C, a synthetic double-stranded RNA molecule that is meant to mimic the acute effects of a viral infection, in both the upper and lower respiratory tracts of cynomolgus macaques. To do this, we compared the in vivo response after a nasal poly I:C challenge in a nasal scrape samples (performed using a nasal curette) to responses that occurred after ex vivo poly I:C stimulation in nasal scrapes, tracheal epithelial brushings, and lung tissue explants in non-human primates.
2015-10-11 | GSE41670 | GEO
Project description:The respiratory epithelium is the body’s first line of defense to pathogens, pollutants, and other potentially injurious agents that can be inhaled. Sampling the upper respiratory tract is becoming a widely used technique in the clinic to examine the molecular changes in the diseased airway; however, it is unclear as to whether the responses in the upper respiratory tract (i.e. the nasal turbinates) reflect the changes that occur in the lower respiratory tract (i.e. trachea and lungs). Here, we assessed the responses to poly I:C, a synthetic double-stranded RNA molecule that is meant to mimic the acute effects of a viral infection, in both the upper and lower respiratory tracts of cynomolgus macaques. To do this, we compared the in vivo response after a nasal poly I:C challenge in a nasal scrape samples (performed using a nasal curette) to responses that occurred after ex vivo poly I:C stimulation in nasal scrapes, tracheal epithelial brushings, and lung tissue explants in non-human primates.
2015-10-11 | GSE41669 | GEO
Project description:The respiratory epithelium is the body’s first line of defense to pathogens, pollutants, and other potentially injurious agents that can be inhaled. Sampling the upper respiratory tract is becoming a widely used technique in the clinic to examine the molecular changes in the diseased airway; however, it is unclear as to whether the responses in the upper respiratory tract (i.e. the nasal turbinates) reflect the changes that occur in the lower respiratory tract (i.e. trachea and lungs). Here, we assessed the responses to poly I:C, a synthetic double-stranded RNA molecule that is meant to mimic the acute effects of a viral infection, in both the upper and lower respiratory tracts of cynomolgus macaques. To do this, we compared the in vivo response after a nasal poly I:C challenge in a nasal scrape samples (performed using a nasal curette) to responses that occurred after ex vivo poly I:C stimulation in nasal scrapes, tracheal epithelial brushings, and lung tissue explants in non-human primates.
2015-10-11 | GSE41668 | GEO
Project description:The objective of this study was to better understand the immune response to RSV at the port of entry, in the upper respiratory tract mucosa of children naturally infected with RSV.
2016-12-01 | GSE41374 | GEO