Briefs: Snow fleas and transplant organs

Researchers have discovered that a potent antifreeze protein (AFP) that protects snow fleas from freezing may allow longer storage of transplant organs. The protein has been isolated and inhibits ice growth, potentially making it possible to store transplant organs at lower temperatures than those currently used, i.e. freezing point or slightly above. The snow-flea ATP breaks down in warm temperatures and will not induce antibody production in patients receiving organs. Another potential application of such AFPs is the inhibition of crystallization in frozen foods.