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In vitro toxicity of n-hexane and 2,5-hexanedione using isolated perfused rabbit heart
Journal of Toxicology and Environmental Health
|April 1, 1983
Abstract:
In vitro toxicity of n-hexane and 2,5-hexanedione using isolated perfused rabbit heart is reported. The hearts were perfused using Langendorf's procedure and modified Anderson's coronary perfusion apparatus. The force of cardiac contraction was significantly reduced following 1 h perfusion with 9.6 mg/l concentration of n-hexane and with 0.35% v/v concentration of 2,5-hexanedione.
Insights
This study investigated the in vitro toxicity of n-hexane and 2,5-hexanedione on isolated rabbit hearts. Both chemicals significantly reduced cardiac contraction force, indicating cardiotoxicity.
Area of Science:
- Toxicology
- Cardiovascular Physiology
Background:
- n-Hexane and its metabolite 2,5-hexanedione are industrial solvents with known neurotoxic effects.
- The cardiotoxic potential of these chemicals has not been extensively studied in vitro.
Purpose of the Study:
- To evaluate the in vitro cardiotoxicity of n-hexane and 2,5-hexanedione.
- To determine the effects of these chemicals on cardiac contractility in an isolated perfused rabbit heart model.
Main Methods:
- Isolated rabbit hearts were perfused using the Langendorff procedure.
- Hearts were exposed to varying concentrations of n-hexane and 2,5-hexanedione for 1 hour.
- Cardiac contraction force was measured as an indicator of toxicity.
Main Results:
- A concentration of 9.6 mg/l n-hexane significantly reduced cardiac contraction force.
- A concentration of 0.35% v/v 2,5-hexanedione significantly reduced cardiac contraction force.
- Both n-hexane and 2,5-hexanedione demonstrated significant cardiotoxic effects in this model.
Conclusions:
- n-Hexane and 2,5-hexanedione exhibit in vitro cardiotoxicity.
- These findings suggest a potential risk to cardiac function from exposure to these solvents.