Hypopituitarism.Your pituitary gland is key to your ovaries making estrogen. When something goes wrong with your pituitary gland, less estrogen is made. Perimenopause and menopause.During perimenopause (the period before menopause) and menopause, your levels of estrogen (particularly the type called est...
initiated near the time of cessation of ovarian function76. Therefore, future studies should test whether the observed menstrual-cycle hormone-induced changes in MTL subregions are further exacerbated during times of more profound neuroendocrine change, such as during perimenopause or early oophorectomy,...