Is allergy a cruel evolutionary throwback?

摘要

Just as hay fever season kicks off in earnest scientists have discovered how evolution may have lumbered humans with allergy problems.The ream from die Randall Division of Cell & Molecular Biophysics,King's College London are working on a molecule vital to a chickens immune system which,represents the evolutionary ancestor of the human antibodies that cause allergic reactions.Crucially,they have discovered that the chicken molecule behaves quite differently from its human counterpart,which throws light on the origin and cause of allergic reactions in humans and gives hope for new strategies for treatment.