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Cycasin Content of Cycas circinalis

Abstract

RECENTLY, scientific interest in the toxicity of cycads has been stimulated by recognition of the high incidence of amyotrophic lateral sclerosis in Guam and the Mariana islands1. In the course of the search for possible aetiological agents and toxic substances responsible for amyotrophic lateral sclerosis, it was found that nuts of Cycas circinalis had long been consumed by Guamanians as food2.

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References

  1. Kurland, L. T., and Mulder, D. W., Neurology, 4, 355 (1954).

    Article  CAS  Google Scholar 

  2. Whiting, M. G., Econ. Bot., 17, 271 (1963).

    Article  CAS  Google Scholar 

  3. Nishida, K., Kobayashi, A., and Nagahama, T., Bull. Agric. Chem. Soc., Japan, 19, 77 (1955).

    CAS  Google Scholar 

  4. Riggs, N. V., Chem. and Indust., No. 35, 926 (1956).

  5. Dastur, D. K., Fed. Proc., 23, 1368 (1964).

    CAS  PubMed  Google Scholar 

  6. Riggs, N. V., and Korsch, B. H., Second Conf. Identification of Toxic Elements of Cycads, Appendix 6, 103 (Aug. 17, 1962).

  7. Nishida, K., Kobayashi, A., and Nagahama, T., Bull. Agric. Chem. Soc. Japan, 20, 74 (1956).

    CAS  Google Scholar 

  8. Plumel, M., Ann. Biol. Clin. (Paris), 9, 307 (1951).

    Google Scholar 

  9. Matsumoto, M., in Second Conf. Identification of Toxic Elements of Cycads, 48 (Aug. 17, 1962).

    Google Scholar 

  10. Matsumoto, H., and Strong, F. M., Arch. Biochem. and Biophys., 101, 299 (1963).

    Article  CAS  Google Scholar 

  11. Mickelsen, O., Second Conf. Identification of Toxic Elements of Cycads, 16 (N.I.H., Aug. 17, 1962).

  12. Kurland, L., Second Conf. Identification of Toxic Elements of Cycads, 16 (N.I.H., Aug. 17, 1962).

  13. Nishida, K., and Yamada, A., J. Agric. Chem. Soc., Japan, 11, 357 (1935).

    CAS  Google Scholar 

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PALEKAR, R., DASTUR, D. Cycasin Content of Cycas circinalis. Nature 206, 1363–1365 (1965). https://doi.org/10.1038/2061363a0

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