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Effects of in utero TCDD exposure on cell apoptosis. Pregnant mice were injected with 1 µg/kg TCDD concentration on GD 15. Testes from PND 30 and PND 60 were used to examine cell apoptosis TUNEL staining (arrow head) (n = 5 for each group). (A and C) Testis from control group on PND 30 and PND 60, respectively. (B and D) Testis from TCDD exposed group on PND 30 and PND 60 (Magnification × 200). PND, postnatal day; TCDD, 2,3,7,8-Tetrachlorodibenzo-p-Dioxin.
