[The effect of prenatal stress on steroidogenesis in the gonads of Arctic foxes (Alopex lagopus)]. / Vliianie prenatal'nogo stressa na steroidogenez v gonadakh pestsov.
Ontogenez
; 31(3): 222-6, 2000.
Article
em Ru
| MEDLINE
| ID: mdl-10867937
ABSTRACT
Handling is a source of stress for farm-bred blue foxes. The influence of handling during the late gestational period was investigated in 10-day old male and female blue foxes. Testosterone and estradiol were measured by RIA in the plasma, gonadal homogenates and in vitro incubates from blue foxes of both sexes. The gonads were incubated in vitro without or with human chorionic gonadotropin. In cubs of both sexes, the gonad weights and ovarian estradiol production were decreased by stress. The testicular testosterone and ovarian estradiol contents were increased in prenatally stressed cubs as compared to the controls. The testicular content and baseline in vitro production of testosterone were not affected by prenatal stress, but the testicular response to human chorionic gonadotropin was higher in the stressed group. This study suggests that prenatal stress induced by handling pregnant vixens may influence gonadal steroidogenesis and this effect was more pronounced in female cubs.
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Base de dados:
MEDLINE
Assunto principal:
Ovário
/
Efeitos Tardios da Exposição Pré-Natal
/
Estresse Psicológico
/
Testículo
/
Testosterona
/
Estradiol
/
Raposas
Tipo de estudo:
Etiology_studies
Limite:
Animals
/
Pregnancy
Idioma:
Ru
Ano de publicação:
2000
Tipo de documento:
Article