... MolecularCloning. A Laboratory Manual, 2nd edn. Cold Spring HarborLaboratory press, Cold Spring Harbor, NY.25. Hogan, B., Beddington, R., Costantini, F. & Lacy, E. (1994) Tailbleeding. In Manipulating ... xenoestrogens in the ovaries of ArKOmice in vivo.Estrogen plays an important role not only in thereproductive system but also in the regulation of bonemetabolism to maintain bone mass. In the present ... (D)were fixed and stained with hematoxylin &eosin for histological analysis. Decreases in thethickness of the endometrial and myometrialcell layers in ArKO mice were prevented bythe diet supplemented...