Biomaterial Database

Mutagenicity of hair dye components relative to the carcinogen benzidine in Drosophila melanogaster. 1977

M J Fahmy, and O G Fahmy

A comparative assay was undertaken in Drosophila melanogaster for the assessment of the mutagenic efficiency of the hair dye components m-toluene-diamine (m-TD) and 4-nitro-o-phenylenediamine (4-NOPD) relative to the aromatic amine human carcinogen benzidine (Bzd). The compounds were injected at equimolar dose ranges (5-20 mM) around the testes of adult males and their mutagenicities were measured separately on the various stages of spermatogenesis. Genetic activity was simultaneously assayed with respect to the overall induction of the X-chromosome recessives (lethals and visibles) relative to the specific effects on rDNA (expressed as bobbed mutations). All compounds exerted decisive mutagenicity both on the X-chromosome and the RNA genes, although their activities on the different genic sites varied between compounds and as a function of cell stage, but not in response to changes in dose, within the investigated molarity range. The mutagenicities and selectivities of the test compounds for rDNA gradually decreased in the order Bzd greater than m-TD greater than 4-NOPD, which correlated with the evidence-so far-about their carcinogenicities.

UI	MeSH Term	Description	Entries
D009153	Mutagens	Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes.	Clastogen,Clastogens,Genotoxin,Genotoxins,Mutagen
D010655	Phenylenediamines	Aniline compounds that contain two amino groups. They are used as a precursor in the synthesis of HETEROCYCLIC COMPOUNDS and POLYMERS. p-Phenylenediamine is used in the manufacture of HAIR DYES and is an ALLERGEN.
D003358	Cosmetics	Substances intended to be applied to the human body for cleansing, beautifying, promoting attractiveness, or altering the appearance without affecting the body's structure or functions. Included in this definition are skin creams, lotions, perfumes, lipsticks, fingernail polishes, eye and facial makeup preparations, permanent waves, hair colors, toothpastes, and deodorants, as well as any material intended for use as a component of a cosmetic product. (U.S. Food & Drug Administration Center for Food Safety & Applied Nutrition Office of Cosmetics Fact Sheet (web page) Feb 1995)	Personal Care Products,Care Product, Personal,Care Products, Personal,Personal Care Product,Product, Personal Care,Products, Personal Care
D003959	Diamines	Organic chemicals which have two amino groups in an aliphatic chain.	Diamine
D004331	Drosophila melanogaster	A species of fruit fly frequently used in genetics because of the large size of its chromosomes.	D. melanogaster,Drosophila melanogasters,melanogaster, Drosophila
D004396	Coloring Agents	Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS.	Coloring Agent,Dye,Dyes,Organic Pigment,Stain,Stains,Tissue Stain,Tissue Stains,Organic Pigments,Pigments, Inorganic,Agent, Coloring,Inorganic Pigments,Pigment, Organic,Pigments, Organic,Stain, Tissue,Stains, Tissue
D005260	Female		Females
D005804	Genes, Lethal	Genes whose loss of function or gain of function MUTATION leads to the death of the carrier prior to maturity. They may be essential genes (GENES, ESSENTIAL) required for viability, or genes which cause a block of function of an essential gene at a time when the essential gene function is required for viability.	Alleles, Lethal,Allele, Lethal,Gene, Lethal,Lethal Allele,Lethal Alleles,Lethal Gene,Lethal Genes
D005808	Genes, Recessive	Genes that influence the PHENOTYPE only in the homozygous state.	Conditions, Recessive Genetic,Genetic Conditions, Recessive,Recessive Genetic Conditions,Condition, Recessive Genetic,Gene, Recessive,Genetic Condition, Recessive,Recessive Gene,Recessive Genes,Recessive Genetic Condition
D006197	Hair	A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body.	Fetal Hair,Hair, Fetal,Lanugo,Fetal Hairs,Hairs,Hairs, Fetal