A gmo rice strain has been produced for the purposes of 'edible vaccination' that expresses the Alzheimer's disease associated amyloidβ-peptide. - GreenMedInfo Summary

Various vaccine therapies for Alzheimer's disease (AD) have been investigated. Here we report transgenic rice expressing amyloidβ-peptide (Aβ). The Aβ42 gene fused with a green fluorescent protein gene was introduced into rice using the Agrobacterium method. When transgenic brown rice expressing Aβ was orally administered to mice, serum anti-Aβ antibody titers were elevated. The same results were observed when mice werefed boiled, transgenic brown rice. The results indicate that an edible vaccine against AD using rice may be feasible. A vaccine derived from rice would be far cheaper than existing medical vaccines.