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In vivo cytogenetic studies on male mice exposed to Ponceau 4R and beta-carotene. 1993

K Agarwal, and A Mukherjee, and A Sharma
Department of Botany, University of Calcutta, India.

Chromosomal aberrations induced by Ponceau 4R (an azo food dye) and beta-carotene (a natural food colour) were studied on bone marrow cells of mice in vivo. The results indicated that Ponceau 4R was more clastogenic than beta-carotene. Ponceau 4R was found to have a minimum effective dose of 4 mg which induced a significant number of chromosome aberrations. This dose is also the recommended 'admissible daily intake'. Chromosome aberrations induced by beta-carotene were not significantly higher than those of the control (olive oil) in the dose range 0.27 to 27 mg/kg body weight. The genotoxicity of these dyes can be attributed to their chemical composition. In so far as genotoxicity is concerned the carotenoid beta-carotene can be safely used as a food colorant whereas Ponceau 4R should be delisted as a food dye.

UI MeSH Term Description Entries
D008297 Male Males
D008677 Metaphase The phase of cell nucleus division following PROMETAPHASE, in which the CHROMOSOMES line up across the equatorial plane of the SPINDLE APPARATUS prior to separation.
D009282 Naphthalenesulfonates A class of organic compounds that contains a naphthalene moiety linked to a sulfonic acid salt or ester.
D001853 Bone Marrow The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells. Marrow,Red Marrow,Yellow Marrow,Marrow, Bone,Marrow, Red,Marrow, Yellow
D001854 Bone Marrow Cells Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells. Bone Marrow Cell,Cell, Bone Marrow,Cells, Bone Marrow,Marrow Cell, Bone,Marrow Cells, Bone
D002338 Carotenoids The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons containing 4 terpene subunits. Carotenes,Carotenoid,Tetraterpene Derivatives,Tetraterpenes,Carotene,Derivatives, Tetraterpene
D002869 Chromosome Aberrations Abnormal number or structure of chromosomes. Chromosome aberrations may result in CHROMOSOME DISORDERS. Autosome Abnormalities,Cytogenetic Aberrations,Abnormalities, Autosome,Abnormalities, Chromosomal,Abnormalities, Chromosome,Chromosomal Aberrations,Chromosome Abnormalities,Cytogenetic Abnormalities,Aberration, Chromosomal,Aberration, Chromosome,Aberration, Cytogenetic,Aberrations, Chromosomal,Aberrations, Chromosome,Aberrations, Cytogenetic,Abnormalities, Cytogenetic,Abnormality, Autosome,Abnormality, Chromosomal,Abnormality, Chromosome,Abnormality, Cytogenetic,Autosome Abnormality,Chromosomal Aberration,Chromosomal Abnormalities,Chromosomal Abnormality,Chromosome Aberration,Chromosome Abnormality,Cytogenetic Aberration,Cytogenetic Abnormality
D002875 Chromosomes In a prokaryotic cell or in the nucleus of a eukaryotic cell, a structure consisting of or containing DNA which carries the genetic information essential to the cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Chromosome
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005505 Food Coloring Agents Natural or synthetic dyes used as coloring agents in processed foods. Coloring Agents, Food,Food Colorants,Agents, Food Coloring,Colorants, Food

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