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Florida red tide toxins (brevetoxins) and longitudinal respiratory effects in asthmatics
Bean, J.A.; Fleming, L.E.; Kirkpatrick, B.; Backer, L.C.; Nierenberg, K.; Reich, A.; Cheng, Y.S.; Wanner, A.; Benson, J.; Naar, J.; Pierce, R.; Abraham, W.M.; Kirkpatrick, G.; Hollenbeck, J.; Zaias, J.; Mendes, E.; Baden, D.G. (2011). Florida red tide toxins (brevetoxins) and longitudinal respiratory effects in asthmatics. Harmful Algae 10(6): 744-748. dx.doi.org/10.1016/j.hal.2011.06.008
In: Harmful Algae. Elsevier: Tokyo; Oxford; New York; London; Amsterdam; Shannon; Paris. ISSN 1568-9883, more
Peer reviewed article  

Available in  Authors 

Keywords
    Karenia brevis (C.C.Davis) Gert Hansen & Ø.Moestrup, 2000 [WoRMS]; Marine
Author keywords
    Asthma; Harmful algal bloom (HAB); Karenia brevis; Longitudinal health study

Authors  Top 
  • Bean, J.A.
  • Fleming, L.E., more
  • Kirkpatrick, B.
  • Backer, L.C.
  • Nierenberg, K.
  • Reich, A.
  • Cheng, Y.S.
  • Wanner, A.
  • Benson, J.
  • Naar, J.
  • Pierce, R.
  • Abraham, W.M.
  • Kirkpatrick, G.
  • Hollenbeck, J.
  • Zaias, J.
  • Mendes, E.
  • Baden, D.G.

Abstract
    Having demonstrated significant and persistent adverse changes in pulmonary function for asthmatics after 1 h exposure to brevetoxins in Florida red tide (Karenia brevis bloom) aerosols, we assessed the possible longer term health effects in asthmatics from intermittent environmental exposure to brevetoxins over 7 years. 125 asthmatic subjects were assessed for their pulmonary function and reported symptoms before and after 1 h of environmental exposure to Florida red tide aerosols for up to 11 studies over seven years. As a group, the asthmatics came to the studies with normal standardized percent predicted pulmonary function values. The 38 asthmatics who participated in only one exposure study were more reactive compared to the 36 asthmatics who participated in =4 exposure studies. The 36 asthmatics participating in =4 exposure studies demonstrated no significant change in their standardized percent predicted pre-exposure pulmonary function over the 7 years of the study. These results indicate that stable asthmatics living in areas with intermittent Florida red tides do not exhibit chronic respiratory effects from intermittent environmental exposure to aerosolized brevetoxins over a 7 year period.

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