Use of blue cotton for detection of mutagenicity in human feces excreted after ingestion of cooked meat

Environmental Health Perspectives
H HayatsuY Wataya

Abstract

Fried ground beef has been shown to contain mutagens, and the major mutagenic component has been identified as 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx). Mutagens in feces of three adult volunteers were fractionated by treatment of the feces with blue cotton followed by chromatography on a carboxymethyl cellulose column. The chromatographic fraction corresponding to MeIQx in terms of the position of elution was examined for mutagenicity in S. typhimurium TA 98 with metabolic activation. When meals containing no heated meat were eaten, this fraction of feces showed little or no mutagenicity. On eating fried ground beef, the feces excreted in the next 2 days showed greatly increased mutagenicity in this fraction. By eating no-meat meals subsequent to the meat meal, the mutagenicity resumed the original low level on the fourth day after the meat meal. The components in the mutagenic fraction were analyzed by high-pressure liquid chromatography, and were shown to differ from MeIQx.

References

Oct 1, 1985·Mutation Research·K KikugawaH Hayatsu
Apr 1, 1983·Archives of Toxicology·K Hemminki
Jan 1, 1984·Carcinogenesis·J S FeltonF T Hatch
Sep 1, 1981·The British Journal of Psychiatry : the Journal of Mental Science·T J Crow
Feb 1, 1981·Mutation Research·U KuhnleinH Kuhnlein

❮ Previous
Next ❯

Citations

Aug 1, 1986·Environmental Health Perspectives·S Nishimura
Aug 1, 1986·Environmental Health Perspectives·J S FeltonF T Hatch
Aug 1, 1986·Environmental Health Perspectives·C G EdmondsJ A McCloskey
Apr 1, 1989·Mutation Research·M H SchiffmanT D Wilkins
Mar 1, 1991·Mutation Research·H U Aeschbacher, R J Turesky
Jan 1, 1988·Nutrition and Cancer·V E Archer
Dec 5, 2000·Journal of Chromatography. B, Biomedical Sciences and Applications·F ToribioL Puignou

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.