The genotoxic effects of griseofulvin (GF) in mouse primary spermatocytes at diakinesis metaphase I of meiosis were investigated. Griseofulvin was administered orally as a single dose of 500, 1000, 1500 and 2000 mg kg-' body wt. and a multiple treatment with a daily dose of 1009 mg kg-' body wt. for
Cytogenetic Effect of Some Insecticides in Mouse Spleen
β Scribed by Soheir M. Amer; Maha A. Fahmy; Souria M. Donya
- Book ID
- 101286596
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 282 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0260-437X
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β¦ Synopsis
Several insecticides were tested for their ability to induce chromosomal aberrations in mouse spleen. They were injected i.p. in doses representing approximately 1/8-1/10 of the respective LD~,, values. Doses were: DDT, 5.5 mg kg,' body wt.; malathion, 30 mg kg-I body wt.; Dursban, 4 mg kg-I body wt.; Sevin, 7 mg kg-I body wt.; and Lannate, 1 mg kg-I body wt. 'Mitomycin C' at a dose of 1 mg kg-' body wt. was used as a positive control. Mice were sacrificed 6, 24 and 48 h after treatment. DDT, malathion, dursban and lannate caused maximum chromosomal aberrations 24 h after injection, whereas Sevin induced its maximum effect 6 h after the treatment. All the insecticides induced statistically significant chromosomal aberrations even after excluding the number of metaphases with gaps. The results indicate genotoxicity in mouse spleen cells.
π SIMILAR VOLUMES
NMRI mice were treated with single doses of cyclophosphamide (Cytoxan) and spermatogonia were analysed for chromosome aberrations at various time intervals after treatment. The maxima of aberrations were found 24 hrs p.i. Chromatid type aberrations were observed exclusively. About half of the aberra