FIGURE 2.
Hormone profile and length of perimenopause in the VCD mouse model of menopause
Dosing of VCD involves daily ip injections for 10, 15, or 20 days. The length of the dosing determines the extent of depletion of the primary and primordial follicles. This in turn determines the length of the perimenopause period, where cycle lengths extend, and hormone profiles fluctuate.