Abstract |
Neurotoxic and sensory respiratory irritation effects of Farbasol in male rats and male Balb/C mice were investigated in condition of acute inhalation exposure. Rotarod performance and pain sensitivity behaviour were tested in rats exposed to Farbasol at concentrations of 4665-9622 mg/m3 immediately after termination of a four-hour exposure. The respiratory rate was measured in mice by the whole body plethysmographic method in 6 min duration exposure to various concentrations of Farbasol. Exposure to Farbasol resulted in concentration-dependent disturbances in rotarod performance and decrease in pain sensitivity in rats, and depression of respiratory rate in mice. The EC50 value for rotarod performance behaviour disturbances was 5497 mg/m3 and for pain sensitivity EC50 was 6589 mg/m3. The concentration depressing the respiratory rate to 50% (RD50) was 3139 mg/m3. The comparison of Farbasol EC50 and RD50 values and its individual constituents such as trimethylbenzene isomers and 4-ethyl toluene established in similar experimental conditions indicate their similar toxic effects potency. Application of additivity rule for establishing the MAC value for Farbasol seems to be safe.
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Authors | Z Korsak, R Swiercz, K Rydzyński |
Journal | International journal of occupational medicine and environmental health
(Int J Occup Med Environ Health)
Vol. 12
Issue 1
Pg. 85-92
( 1999)
ISSN: 1232-1087 [Print] Poland |
PMID | 10360088
(Publication Type: Journal Article)
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Chemical References |
- Benzene Derivatives
- Solvents
- farbasol
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Topics |
- Animals
- Benzene Derivatives
(pharmacology)
- Central Nervous System
(drug effects)
- Male
- Mice
- Mice, Inbred BALB C
- Motor Activity
(drug effects)
- Occupational Exposure
- Rats
- Rats, Wistar
- Regression Analysis
- Respiration
(drug effects)
- Solvents
(pharmacology)
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