「資料集・リンク」

「専門家向けデータベース」

by MOE and Chemicals Evaluation and Research Institute, Japan (CERI)

Atlas of Gonadal Histopathology in Medaka Exposed to Endocrine Disruptors

Effect of estrogen exposure

Testis-ova

Testis-ova from a fish exposed to 958 µg/L of flutamide from fertilized egg to 60-d posthatch (Bouin, H&E).
O: oocyte, Sc: spermatocyte, Sz: spermatozoa.
Single oocyte exists within the testicular tissue. It is not clear that what mechanisms have been involved in the induction of testis-ova when exposed to anti-androgen.

Ovary

Ovary from a fish exposed to 958 µg/L of flutamide from fertilized egg to 60-d (Bouin, H&E).
No effects are observed.

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