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Sequestration and Elimination of Toxic Aldehydes
Herbert T Nagasawa1, Robert J Valentekovich1,2, Scott G Nagasawa1
1Sequald, Inc., 3868 Carson Street, Suite 212, Torrance, California 90503, United States.
Chemical Research in Toxicology
|January 29, 2020
Summary
The dipeptide cysteinylglycine (CG) sequesters and excretes toxic aldehydes, such as acetaldehyde, in urine. This detoxification may prevent alcohol flushing syndrome and alleviate hangover symptoms by neutralizing harmful aldehyde byproducts.
Area of Science:
- Biochemistry
- Toxicology
- Metabolic pathways
Background:
- Aldehydes produced from alcohol oxidation in vivo are toxic.
- Acetaldehyde and isoamyl aldehyde are model toxic aldehydes.
- Cysteinylglycine (CG) is formed in vivo from cystinyl-bis-glycine (CbG).
Purpose of the Study:
- To demonstrate CG's ability to sequester and excrete toxic aldehydes in rat models.
- To investigate CG's potential role in preventing alcohol-related syndromes.
Main Methods:
- Experimental study using rat models.
- Administration of model aldehydes (acetaldehyde, isoamyl aldehyde).
- Analysis of urine for CG conjugation products.
Main Results:
- CG effectively sequesters acetaldehyde and isoamyl aldehyde.
- Conjugation products of CG with these aldehydes are excreted in urine.
- Demonstrated detoxification of model aldehydes by CG.
Conclusions:
- CG can sequester and detoxify a range of toxic aldehydes.
- CG may prevent alcohol flushing syndrome in individuals with enzyme defects.
- CG may alleviate hangover symptoms caused by aldehyde congeners.
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