Author Interviews, C. difficile, Gastrointestinal Disease / 10.02.2014
C. difficile: Novel Gene Detection Method
MedicalResearch.com Interview with:
Stephanie Angione
PhD Candidate
Brown University School of Engineering
Center for Biomedical Engineering
MedicalResearch.com: What are the main findings of the study?
Answer: This study demonstrates the application of a novel nucleic acid detection platform to detect Clostridium difficile (C. difficile) in subjects presenting with acute diarrheal symptoms. This method amplifies three genes associated with C. difficile infection as well as genes associated with virulence attributed to the NAP1/027/BI strain. The novel PCR assay allows for simple and rapid detection of three C. difficile genes: tcdB, cdtB, and tcdC, which code for C. difficile toxin B, C. difficile binary toxin, and a protein suspected to regulate toxin production, which includes the NAP1/027/BI tcdC variant. Amplification of DNA from the tcdB, tcdC and cdtB genes can be carried out using a droplet sandwich platform that performs real-time polymerase chain reaction (PCR) in microliter droplets for the detection and identification of amplified fragments of DNA. Our technique of multiplex gene amplification provides a unique method that is both sensitive and specific to rapidly detect C. difficile in patient stool samples that can be adapted to point-of-care testing.





















