Summary
Extracts fromB. straminea spawn are active against A and B normal red cells. A1 and A2 subgroups may be differentiated with trypsin-, papain- and pronase-treated cells. 0 cells treated with papain, pronase and neuraminidase react weakly to the extracts.
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References
R.T. Pemberton, Ann. N. Y. Acad. Sci.234, 95 (1974).
G.R. Vasta, M.E. Chiesa and M. Palatnik, Medicina, B. Aires36, 107 (1976).
D.E. Gilbertson and F.J. Etges, Ann. trop. Med. Parasit.61, 144 (1967).
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Acknowledgments. We thank Dr J. Adams for a criticism of the manuscript and assistance with the English version. Snails were kindly supplied by Prof. J. Carvalho de Holanda (Instituto de Microbiología, Departamento de Parasitología, CCS, UFRJ). This work was supported in part by grants from CNPq (Conselho de Desenvolvimento Cientifico e Tecnológico), PIG (Programa Integrado de Genética) and CEPG (Conselho de Ensino para Graduados, UFRJ).