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Combined Repeat Dose and Reproductive/Developmental Toxicity Screening Test (OECD): Familiarization Using Cyclophosphamide
- Source :
- Toxicological Sciences. 18:89-95
- Publication Year :
- 1992
- Publisher :
- Oxford University Press (OUP), 1992.
-
Abstract
- A familiarization study was conducted on the "Combined Repeat Dose and Reproductive/Developmental Toxicity Screening Test (ReproTox)" proposed by the OECD. Cyclophosphamide (CP) at doses of 6.7, 4.5, 3, 2, and 0 mg/kg body wt was given daily by gavage to groups of 12 male and 12 female Sprague-Dawley rats. As a result, anemia and leukopenia were evident in treated males. The absolute and relative thymus and spleen weights were decreased in treated rats. Histopathologically, atrophy of the thymus, spleen, and bone marrow was observed. With respect to the reproductive/developmental toxicity, dose-dependent increases in postimplantation loss of fetuses and postnatal death were found in dams given CP. The body weight of pups treated with CP was significantly lowered in a dose-related manner. Thus the results demonstrated most of the known toxicological properties of CP, except the adverse effects on spermatogenesis and fertility. Therefore ReproTox can be considered as a useful screening test for assessing repeat dose and reproductive/developmental toxicity of existing chemicals of high production volume.
- Subjects :
- Male
medicine.medical_specialty
Cyclophosphamide
Litter Size
Anemia
Developmental toxicity
Physiology
Biology
Toxicology
Atrophy
Pregnancy
Internal medicine
medicine
Animals
Lactation
Spermatogenesis
Leukopenia
Labor, Obstetric
Reproduction
Body Weight
Rats, Inbred Strains
Organ Size
medicine.disease
Rats
Endocrinology
Teratogens
Toxicity
Female
medicine.symptom
medicine.drug
Subjects
Details
- ISSN :
- 10960929 and 10966080
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Toxicological Sciences
- Accession number :
- edsair.doi.dedup.....4c61c0e4f259eb80a40b149f086b342c