The weeks shown in color represent the start and end points of chemical exposure for each study.

Study Results Study Details References

Results for Dioxin (TCDD)

Decreased percentage with testis descent at 16 days of age at higher dose only

Subjects: Wistar rats

Chemical: Dioxin (TCDD)

Low doses tested: 0.3 or 1.0 μg/kg bw

Other doses tested: Initial dose was followed by weekly maintenance doses (at 40 percent)

Route of administration: injected subcutaneously

Exposure duration: gestational day 19 – adulthood (comparable to human prenatal development from approximately day 1 of week 10 to beyond birth)

Age of measurement: birth through adulthood

Reference [PubMed Link]
Thiel R, Koch E, Ulbrich B, Chahoud I. 1994. Peri- and postnatal exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin - effects on physiological development, reflexes, locomotor activity and learning behaviour in Wistar rats. Arch Toxicol 69(2):79-86.