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The detection of Mycoplasma pneumoniae in nasal polyps
P A Gurr1, A Chakraverty, V Callanan
1Royal National Throat, Nose and Ear Hospital, London, UK.
Abstract:
The aetiology and microbial flora of nasal polyps is not well understood. No study in the literature has reported an association between the sub-bacterium Mycoplasma pneumoniae and nasal polyps. We have developed an assay method using the Polymerase Chain Reaction (PCR) to amplify a specific region of the M. pneumoniae DNA in extracts of clinical samples using species-specific primers designed to a region of the 16S rRNA. The presence of M. pneumoniae was detected in 13/14 (93%) nasal polyps, in 4/5 (80%) rhinosinusitis mucosal samples but only in 1/7 (14%) of control samples (obstructive turbinates). An epidemic of infections due to M. pneumoniae is expected to occur in 1995. We believe this assay could form the basis of a rapid technique for M. pneumoniae detection. We also propose that the presence of M. pneumoniae may be of importance in the aetiology of nasal polyps.
Insights
Mycoplasma pneumoniae was detected in 93% of nasal polyps using a new Polymerase Chain Reaction (PCR) assay. This suggests a potential link between this bacterium and the development of nasal polyps.
Area of Science:
- Otolaryngology
- Microbiology
- Molecular Biology
Background:
- The causes and microbial associations of nasal polyps remain largely unknown.
- No prior research has established a connection between Mycoplasma pneumoniae and nasal polyps.
Purpose of the Study:
- To develop a Polymerase Chain Reaction (PCR) assay for detecting Mycoplasma pneumoniae DNA.
- To investigate the prevalence of Mycoplasma pneumoniae in nasal polyps and related conditions.
Main Methods:
- Developed a species-specific PCR assay targeting a region of the 16S rRNA gene of M. pneumoniae.
- Analyzed clinical samples from nasal polyps, rhinosinusitis mucosa, and control turbinates.
Main Results:
- Mycoplasma pneumoniae DNA was detected in 93% of nasal polyp samples (13/14).
- The bacterium was found in 80% of rhinosinusitis samples (4/5) but only 14% of controls (1/7).
- The developed PCR assay demonstrated high sensitivity for M. pneumoniae detection.
Conclusions:
- The study proposes Mycoplasma pneumoniae as a potential factor in the aetiology of nasal polyps.
- The developed PCR assay offers a rapid method for M. pneumoniae detection.
- Further research is warranted to confirm the role of M. pneumoniae in nasal polyp formation.