Figure Legends:
Figure 1: H & E staining of rat vaginal smears from each group
(100x) and Vaginal smears of rats in estrous cycle.
A: Pre estrus: a great number of nucleated epithelial cells and some
cornified epithelial cells are present.
B: Estrus period: all are cornified cells without cell nucleus, with
some epithelial cells present.
C: Late estrus: mostly cornified cells and leukocytes are present.
D: Estrus interval: most leukocytes and some mucosa and epithelial cells
are present.
Figure 2: Time-sensitiveness of E2 in rats
after perimenopausal model induction
Figure 3: Comparison of E2 levels in rats after
perimenopausal model induction on the sixth cycle