Blackberry (Morus nigra) anaphylaxis

Alergol Inmunol Clin, December 1999 Vol. 14, No 6, pp. 398-401 The blackberry (Morus nigra, Rubus fruticosus) (Fig. 1) is the fruit of the blackberry bush, a wild-occurring bush of the Rosaceae family, genus Rubus. A number of proteins from fruits of this family have been implicated in allergic processes, both independently and in association with pollenosis. There have been reports of asthma, urticaria and anaphylaxis caused by hypersensitivity to the fruits of the tree Morus alba, of the Moraceae family (mulberry), but none as yet of sensitization to the blackberry, despite its diffusion and widespread consumption both in fresh form and as a component of a number of desserts. Recent data have revealed that the oral allerCASE REPORT