Identifying Upper Respiratory Tract Pathogens with a Microarray
Author Information
Author(s): Lodes Michael J., Suciu Dominic, Wilmoth Jodi L., Ross Marty, Munro Sandra, Dix Kim, Bernards Karen, Stöver Axel G., Quintana Miguel, Iihoshi Naomi, Lyon Wanda J., Danley David L., McShea Andrew
Primary Institution: CombiMatrix Corporation
Hypothesis
Can a rapid and sensitive genotyping assay using electrochemical detection on a microarray effectively identify upper respiratory tract pathogens?
Conclusion
The study demonstrates a new microarray platform that can rapidly and accurately identify multiple upper respiratory pathogens.
Supporting Evidence
- The assay was designed to identify 10 upper respiratory pathogens.
- Approximately 850 unique URI probes were included on the array.
- The study showed excellent sensitivity and specificity for the multiplexed format.
- Electrochemical detection eliminates the need for expensive optical scanning equipment.
- The platform allows for customization to suit different pathogens.
- Results indicated that the assay could detect nucleic acid dilutions to approximately 1 to 10 genomes for most target categories.
Takeaway
This study created a new test that can quickly find out what germs are making people sick in their noses and throats, helping doctors give the right medicine.
Methodology
The study used a genotyping assay and microarray with electrochemical detection to identify 10 upper respiratory pathogens.
Potential Biases
Potential contamination from previous assays and amplification of genetic material from normal flora could lead to false positives.
Limitations
The assay may report the presence of pathogens without establishing a direct correlation with disease, and results can be affected by host cell nucleic acid contamination.
Digital Object Identifier (DOI)
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