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Results for “DIETHYLSTILBESTROL”

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PubMed1988

Prenatal exposure of male mice to diethylstilbestrol alter the expression of the lactotransferrin gene in seminal vesicles.

We have previously isolated an estrogen-inducible secretory protein, lactotransferrin (LTF), and a cDNA to its messenger RNA from the uterus of mice. In this report we determined that the level of LTF mRNA is minimal in the seminal vesicles of normal mice. In contrast, expression of LTF mRNA in the seminal vesicles of developmentally estrogenized males was both constitutive and estrogen inducible. The results suggested that this alteration may be an example of atypical gene expression after hormonal manipulation early in development.

Androgens↗
PubMed2002

Formation of active oxygen species from diethylstilbestrol, a synthetic estrogen, and its metabolite in the presence of RAW 264.7 cells.

Previously, we reported that (+/-)-IA but not DES produces O2- spontaneously in PBS. We are interested in the possibility that these compounds might produce active oxygen species under mild cell culture conditions. On incubation of RAW 264.7 cells with (+/-)-IA, the signal of 5,5'-dimethyl-1-pyrroline-N-oxide (DMPO)-OH adducts increased but no more than the additive effect. However, stimulation of RAW cells with LPS and INF-gamma enhanced the formation of DMPO-OH adducts slightly more than the additive effect, especially when the concentration of (+/-)-IA increased. In the case of DES, the spectra of DMPO-OH adducts did not increase concentration-dependently in the absence of RAW 264.7 cells, however in their presence, they increased concentration-dependently, especially when these cells were stimulated with LPS and IFN-gamma. The results were interpreted to mean that DES would have a higher oxidation potential than (+/-)-IA, not be oxidized to semiquinoes spontaneously, and therefore not produce DMPO-OH adducts in the absence of RAW cells. In their presence, DES might be easily oxidized to semiquinones by the reaction with O2- produced from RAW 264.7 cells.

Animals↗