Key result
The study identified a single potentially pathogenic change in CACNA1S (p.Arg174Trp) among malignant hyperthermia patients, but found no categorical evidence that CACNA1S haplotypes are a major risk factor.
Why the study?
Does the CACNA1S gene play a major role in malignant hyperthermia susceptibility in the UK?
Population
50 independent malignant hyperthermia patients in whom RYR1 mutations have been excluded, and a European…
Comparison
CACNA1S cDNA sequencing and haplotype analysis vs European control group
Design
Case-control
Authors
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CACNA1S variants remain rare in RYR1-negative MH; leaves open major contributions from other loci or modifiers.
Observational (n=940)
No
Does the CACNA1S gene play a major role in malignant hyperthermia susceptibility in the UK?
p-value: p=0.02
CACNA1S mutations may play a role in malignant hyperthermia susceptibility, but the haplotype structure is highly variable.
Carpenter et al. (2009) conducted an observational in Malignant hyperthermia (n=940). CACNA1S gene variants vs. Population controls was evaluated on CACNA1S haplotype frequency differences between malignant hyperthermia susceptible cases and population controls (p=0.02). The study identified a single potentially pathogenic change in CACNA1S (p.Arg174Trp) among malignant hyperthermia patients, but found no categorical evidence that CACNA1S haplotypes are a major risk factor.
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