Germ cell mutagenicity of phthalic acid in mice.

Mutagenicity of phthalic acid was evaluated by employing dominant lethal mutation and sperm head abnormality assays in male Swiss albino mice. For the dominant lethal mutation assay, adult male mice received a single intraperitoneal (i.p.) injection of either 40 mg or 80 mg/kg b.w. of phthalic acid for 5 consecutive days. For the sperm head abnormality assay, the mice were treated with 50, 100, 150, 200 and 300 mg/kg b.w. as a single i.p. injection. Treatment of adult male mice with phthalic acid resulted in induction of dominant lethal mutations and abnormal sperm heads. The results obtained indicate that phthalic acid is a germ cell mutagen.

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