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Effects of O,O,O-tri-n-alkyl phosphorothioates on acetaminophen-induced hepatotoxicity in rats
Toxicology Letters
|November 1, 1986
Abstract:
Four homologous O,O,O-tri-n-alkyl phosphorothioates were tested to prevent liver damage induced by acetaminophen in fed and starved rats. In fed rats, trimethyl, triethyl and tri-n-propyl esters prevented effectively the increase of serum transaminase activities. In starved rats, however, tri-n-propyl ester became ineffective and tri-n-butyl ester showed a slightly protective effect.
Insights
Certain O,O,O-tri-n-alkyl phosphorothioates protect against acetaminophen-induced liver damage in rats. Effectiveness varied based on the specific ester and the animal
Area of Science:
- Toxicology
- Biochemistry
- Pharmacology
Background:
- Acetaminophen overdose is a common cause of acute liver injury.
- Phosphorothioate compounds are investigated for potential hepatoprotective properties.
Purpose of the Study:
- To evaluate the efficacy of four homologous O,O,O-tri-n-alkyl phosphorothioates in preventing acetaminophen-induced liver damage.
- To assess the influence of feeding status (fed vs. starved) on the protective effects.
Main Methods:
- Administration of four O,O,O-tri-n-alkyl phosphorothioates to fed and starved rats.
- Induction of liver damage using acetaminophen.
- Measurement of serum transaminase activities as a biomarker for liver injury.
Main Results:
- In fed rats, trimethyl, triethyl, and tri-n-propyl phosphorothioates effectively prevented elevated serum transaminase levels.
- In starved rats, tri-n-propyl phosphorothioate lost its protective effect.
- Tri-n-butyl phosphorothioate demonstrated a slight protective effect in starved rats.
Conclusions:
- The hepatoprotective efficacy of O,O,O-tri-n-alkyl phosphorothioates against acetaminophen toxicity is dependent on both the alkyl chain length and the nutritional state of the animal.
- Further research may explore the mechanisms underlying these differential effects.