El-Mofty M, Sadek I, Soliman A, Mohamed A, Sakre S
Nutr Cancer. 1987;9(2-3):103-7. doi: 10.1080/01635588709513917.
Neoplastic lesions were induced in 10 out of 58 experimental toads (Bufo regularis) force-fed with alpha-ecdysone, which naturally occurs in the leaves of bracken fern (Pteris aquilina). The results of this study prove that alpha-ecdysone may be one of the factors responsible for the carcinogenicity of bracken fern plant fed to cattle and other experimental animals.
