| Literature DB >> 1463392 |
I Chahoud1, J Hartmann, G M Rune, D Neubert.
Abstract
The effects of a single dose of TCDD on the testis were studied in rats. The animals were treated (subcutaneously) once with TCDD doses of 0, 0.5, 1.0, 3.0, 5.0 micrograms/kg body weight. Doses of 3.0 or 5.0 micrograms TCDD/kg reduced the number of spermatids/testis significantly (60% of the controls). Electron microscopic inspection revealed that both doses led to a dissolution on the germinal epithelium. Altered germ cells at all developmental stages occurred in all testes evaluated. Doses of 0.5 or 1.0 micrograms TCDD/kg did not induce any effects in the testis; therefore, under these experimental conditions of single exposure to rats the dose of 1.0 micrograms TCDD/kg can be considered as NOAEL.Entities:
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Year: 1992 PMID: 1463392 DOI: 10.1007/bf01973387
Source DB: PubMed Journal: Arch Toxicol ISSN: 0340-5761 Impact factor: 5.153