Antibiotic-Inactivating Factor Detection Kit
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Solution Overview
Problem
Current antibiotic susceptibility tests fail to reliably predict treatment outcomes due to their inability to detect antibiotic-inactivating factors produced by microorganisms, such as beta-lactamases, leading to ineffective antibiotic therapies and potential fatal consequences, especially with carbapenemase-producing pathogens.
Innovation Solution
A method and kit for detecting antibiotic-inactivating enzymes using a solution containing a substrate antimicrobial agent, permeabilizing or lysis agent, and indicators, which allows for rapid detection of beta-lactamases, including carbapenemases, by incubating the microorganism and observing color changes indicative of enzyme activity, with optional inhibitors to differentiate between enzyme classes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current antibiotic susceptibility tests are used, then the testing process is simple and routine, but the tests fail to detect antibiotic-inactivating factors leading to unreliable treatment predictions
Solution Approach 1:
The patent combines the antibiotic susceptibility test with an antibiotic-inactivating factor detection test into a single integrated assay. The test mixture includes both the antibiotic substrate and indicator components that detect enzyme activity, allowing simultaneous assessment of both susceptibility and inactivating factors without requiring separate testing procedures
Solution Approach 2:
The testing system performs multiple functions: it assesses antibiotic susceptibility, detects antibiotic-inactivating enzymes, and provides treatment outcome predictions all within a single test platform. This multi-functional approach eliminates the need for multiple separate tests while comprehensive evaluation
2Measurement precision
If separate tests for antibiotic susceptibility and resistance mechanisms are performed, then detection accuracy improves, but testing time and complexity increase
Solution Approach 1:
The patent merges susceptibility testing and resistance mechanism detection into a single simultaneous assay. The test mixture contains antibiotic substrate, indicator, and detection components that allow parallel assessment of both antibiotic efficacy and enzyme-mediated inactivation without sequential testing
Solution Approach 2:
The test system is pre-configured with all necessary components including antibiotic substrate, indicator, and detection reagents in optimal concentrations. This preliminary preparation allows the test to proceed directly to simultaneous detection of multiple parameters without requiring multiple separate setup procedures
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
This approach enables rapid and accurate detection of beta-lactamases, including carbapenemases, providing clinicians with critical information for selecting appropriate antibiotic therapies and reducing mortality from antibiotic-resistant infections.
Implementation Method 1
a permeabilizing or cell lysis agent
Implementation Method 2
substrates for antimicrobial-inactivating factors
Implementation Method 3
indicators to detect antimicrobial-inactivating activity
Data Source
AI summary
Methods and compositions for detecting an antibiotic-inactivating factor produced by a microorganism are described herein.