Abstract |
The ability of nitrilotriacetic acid (NTA) to induce aneuploidy was studied in the germ line of both Drosophila and the mouse. The Free Inverted X Chromosomes (FIX) genetic system, adopting a brooding scheme, was used to detect induced aneuploidy in Drosophila, and a cytogenetic method based on chromosomal counting in secondary spermatocytes was used in the mouse. In Drosophila a highly significant (P less than 0.001) increase of aneuploidies was produced by NTA (5 x 10(-2) M), which was greater than that produced by colchicine (7.5 x 10(-6) M) and 5-fluorodeoxyuridine (10(-4) M), which were used as positive controls. Brooding effects were observed with NTA, which produced a maximum induction of chromosomal gain in brood I, suggesting a possible stage-specific action during meiosis. The ability of NTA (275 mg/kg body weight) to induce meiotic aneuploidy (hyperhaploidy) also was confirmed in the mouse (P less than 0.001), where all the aneuploidies detected were attributable to treatment of the metaphase I stage.
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Authors | R Costa, A Russo, M Zordan, F Pacchierotti, A Tavella, A G Levis |
Journal | Environmental and molecular mutagenesis
(Environ Mol Mutagen)
Vol. 12
Issue 4
Pg. 397-407
( 1988)
ISSN: 0893-6692 [Print] United States |
PMID | 3142768
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Acetates
- Nitrilotriacetic Acid
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Topics |
- Acetates
(toxicity)
- Aneuploidy
- Animals
- Drosophila melanogaster
- Female
- Germ Cells
(drug effects)
- Male
- Mice
- Mice, Inbred C3H
- Mice, Inbred C57BL
- Nitrilotriacetic Acid
(toxicity)
- Spermatocytes
(drug effects)
- X Chromosome
(drug effects)
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