Abstract：
:In this study, we examined the relationship between maternal weight gain deficits induced by protein-and-energy restriction (PER) and pregnancy outcome. We also evaluated whether PER would potentiate the developmental toxicity of cyclophosphamide (CP) and hydroxyurea (HU). Two independent experiments--employing two different methods of inducing protein-and-energy malnourishment-were performed. In the first experiment, well-nourished (fed ad libitum, normal diet, 22% of protein, 11.9 kJ/g) and food restricted (fed approximately half of ad libitum food intake, i.e. 12 g/day) rats received CP (0, 5 and 7.5 mg/kg sc) on pregnancy day 11. In the second experiment, well-nourished (normal diet, 24% of protein, 12.4 kJ/g) and malnourished (protein-and-energy deficient diet, 8% of protein, 6.2 kJ/g) rats received HU (0, 300 and 500 mg/kg ip) on pregnancy day 11. PER alone caused pronounced reductions of pregnancy weight gain and low fetal body weight, but induce no embryolethality and, except for a few sternum anomalies, no malformation. PER attenuated embryolethal and teratogenic effects of CP. PER reduced teratogenicity but did not alter effects of HU on embryolethality and fetal body weight. Therefore severe maternal weight gain deficits are not necessarily associated to embryolethality and terata and PER attenuates the teratogenic effects of CP and HU.
journal_name
Toxicologyjournal_title
Toxicologyauthors
Chahoud I,Kuriyama SN,Paumgartten FJdoi
10.1016/s0300-483x(02)00373-6keywords:
subject
Has Abstractpub_date
2002-09-30 00:00:00pages
137-49issue
1-2eissn
0300-483Xissn
1879-3185pii
S0300483X02003736journal_volume
179pub_type
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