Search results for "Ciliary beating"

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Effect of sulfur dioxide on mucociliary activity and ciliary beat frequency in guinea pig trachea

1994

The effects of 30 min exposure to sulfur dioxide on mucociliary activity (MCA) and ciliary beat frequency (CBF) were studied in 31 guinea pig tracheas. MCA was measured by recording the light reflected from ciliated mucous membranes using an infrared bar code reader. CBF of single ciliated cells obtained by brushing was measured with phase-contrast microscopy. Each tracheal sample was exposed to SO2 at concentrations ranging from 2.5 to 12.5 ppm, or to air for control purposes. MCA and CBF were measured before and immediately after gas exposure. A reduction in mean MCA of 63% (P = 0.0007) and statistically insignificant changes in CBF (P > 0.05) were recorded at concentrations of 2.5 PPM SO…

Baseline valuesDose-Response Relationship DrugInhalationMucociliary clearanceCiliary activityGuinea PigsPublic Health Environmental and Occupational Healthcomplex mixturesTracheaAndrologyGuinea pigchemistry.chemical_compoundchemistryMucociliary ClearanceAnesthesiaToxicitycardiovascular systemAnimalsSulfur DioxideCiliary beatingSulfur dioxideCiliary Motility Disorderscirculatory and respiratory physiologyInternational Archives of Occupational and Environmental Health

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