Identification of a Mutation in Porcine Ryanodine Receptor Associated with Malignant Hyperthermia
Science1991Vol. 253(5018), pp. 448–451
Citations Over TimeTop 1% of 1991 papers
Junichi Fujii, Kinya Otsu, Francesco Zorzato, Stella de Leon, Vijay K. Khanna, Janice E. Weiler, Peter J. O’Brien, David H. MacLennan
Abstract
Malignant hyperthermia (MH) causes neurological, liver, and kidney damage and death in humans and major economic losses in the swine industry. A single point mutation in the porcine gene for the skeletal muscle ryanodine receptor (ryr1) was found to be correlated with MH in five major breeds of lean, heavily muscled swine. Haplotyping suggests that the mutation in all five breeds has a common origin. Assuming that this is the causal mutation for MH, the development of a noninvasive diagnostic test will provide the basis for elimination of the MH gene or its controlled inclusion in swine breeding programs.
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