Related Animal Research
- Recently, two publications have reported the renewal of ovarian follicles from germline stem cells. Prior to these papers it was believed that the number of oocytes was fixed.
- While the primary cause of the end to menstrual cycles is the exhaustion of ovarian follicles, there is some evidence that a defect in the hypothalamus is critical in the transition from regular to irregular cycles. This is supported by at least one study in which transplantation of ovaries from old rats to young ovariectomized rats resulted in follicular development and ovulation. Also, electrical stimulation of the hypothalamus is capable of restoring reproductive function in aged animals. Due to the complex interrelationship among the hypothalamus, pituitary and ovaries (HPO axis) defects in the functioning of one level can cause defects on the other levels.
Read more about this topic: Poor Ovarian Reserve
Famous quotes containing the words related, animal and/or research:
“There is nothing but is related to us, nothing that does not interest us,—kingdom, college, tree, horse, or iron show,—the roots of all things are in man.”
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“I’m beginning to think that the proper definition of “Man” is “an animal that writes letters.””
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