Toxicokinetics of MCPA in Poisoned Patients
Author Information
Author(s): Darren M. Roberts, Andrew H. Dawson, Lalith Senarathna, Fahim Mohamed, Ron Cheng, Geoffrey Eaglesham, Nick A. Buckley
Primary Institution: South Asian Clinical Toxicology Research Collaboration, University of Peradeniya, Peradeniya, Sri Lanka
Hypothesis
MCPA exhibits dose-dependent protein binding and changes in toxicokinetics in patients with acute poisoning.
Conclusion
MCPA shows saturable protein binding, and its elimination half-life is prolonged at higher concentrations.
Supporting Evidence
- MCPA concentrations were measured in 128 blood samples from 49 patients.
- The study found that the free MCPA concentration increased when total concentration exceeded 239 mg/L.
- The apparent elimination half-life of MCPA was 25.5 hours at higher concentrations.
Takeaway
When people accidentally take too much MCPA, the way their body processes it can change, making it stay in their system longer.
Methodology
This observational study collected blood samples from patients with acute MCPA poisoning to analyze total and unbound concentrations.
Potential Biases
Potential bias due to the observational nature and limited treatment options available in the hospitals.
Limitations
The study had limited sampling frequency and resource constraints that affected treatment options.
Participant Demographics
Patients were primarily young adults with a median age of 25.5 years, including 18 males and 7 females.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI 198–274 mg/L
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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