Vancomycin-Resistant Enterococcus Detection Primer Set
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Solution Overview
Problem
Current methods for detecting vancomycin-resistant Enterococcus species in clinical samples are time-consuming and costly, requiring 4 to 7 days for nosocomial infection management.
Innovation Solution
A primer set specifically designed for detecting vancomycin-resistant Enterococcus species, including Enterococcus faecalis, Enterococcus faecium, Enterococcus gallinarum, and Enterococcus casseliflavus, using nucleotide sequences to amplify target genes such as VanA, VanB, VanC1, and VanC2/3 through PCR, enabling simultaneous identification and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional detection methods (inoculation in solid medium or liquid medium) are used, then detection reliability is maintained, but detection time increases to 4-7 days
Solution Approach 1:
The patent replaces the conventional mechanical/cultural detection system (inoculation in solid or liquid medium requiring 4-7 days) with a molecular biology-based PCR detection system. The PCR method directly amplifies and detects vancomycin resistance genes (VanA, VanB, VanC1, VanC2/3) from clinical samples, eliminating the need for time-consuming bacterial cultivation while maintaining high detection reliability through specific primer sets and amplification conditions.
2Measurement precision
If conventional detection methods are used, then detection accuracy is maintained, but detection cost increases
Solution Approach 1:
The patent extracts and targets specific vancomycin resistance genes (VanA, VanB, VanC1, VanC2/3) from the complex microbial community in clinical samples. By using gene-specific primer sets that bind to conserved regions of these resistance genes, the method achieves high detection accuracy without requiring expensive conventional culture media and extensive manual cultivation procedures, thereby reducing overall detection cost.
3Adaptability or versatility
If broad-spectrum detection methods are used, then detection coverage is improved, but detection specificity decreases
Solution Approach 1:
The patent applies local quality by designing primer sets that target specific conserved regions within the vancomycin resistance genes (VanA, VanB, VanC1, VanC2/3) of Enterococcus species. The primers are designed to bind specifically to these conserved sequences, enabling the method to detect all four species (E. faecalis, E. faecium, E. gallinarum, E. casseliflavus) with high specificity while maintaining broad coverage across different Vancomycin-resistant Enterococcus strains.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The primer set allows for rapid and specific detection of vancomycin-resistant Enterococcus species, reducing detection time and cost, with high specificity and sensitivity, facilitating timely infection management.
Implementation Method 1
using nucleotide sequences to amplify target genes such as VanA, VanB, VanC1, and VanC2/3 through PCR
Data Source
AI summary
A vancomycin-resistant Enterococcus specific primer set, a composition including the primer set, and a method of detecting a vancomycin-resistant Enterococcus sp. microorganism in a sample using the primer set.