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Effects of formaldehyde on the frog's mucociliary epithelium as a surrogate to evaluate air pollution effects on the respiratory epithelium BJMBR
Fló-Neyret,C.; Lorenzi-Filho,G.; Macchione,M.; Garcia,M.L.B.; Saldiva,P.H.N..
The increasing use of alcohol as an alternative fuel to gasoline or diesel can increase emission of formaldehyde, an organic gas that is irritant to the mucous membranes. The respiratory system is the major target of air pollutants and its major defense mechanism depends on the continuous activity of the cilia and the resulting constant transportation of mucous secretion. The present study was designed to evaluate the effects of formaldehyde on the ciliated epithelium through a relative large dose range around the threshold limit value adopted by the Brazilian legislation, namely 1.6 ppm (1.25 to 5 ppm). For this purpose, the isolated frog palate preparation was used as the target of toxic injury. Four groups of frog palates were exposed to diluted Ringer...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Mucociliary clearance; Formaldehyde; Air pollution.
Ano: 2001 URL:
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