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:
“A parent who from his own childhood experience is convinced of the value of fairy tales will have no difficulty in answering his child’s questions; but an adult who thinks these tales are only a bunch of lies had better not try telling them; he won’t be able to related them in a way which would enrich the child’s life.”
—Bruno Bettelheim (20th century)
“The most threatened group in human societies as in animal societies is the unmated male: the unmated male is more likely to wind up in prison or in an asylum or dead than his mated counterpart. He is less likely to be promoted at work and he is considered a poor credit risk.”
—Germaine Greer (b. 1939)
“Our science has become terrible, our research dangerous, our findings deadly. We physicists have to make peace with reality. Reality is not as strong as we are. We will ruin reality.”
—Friedrich Dürrenmatt (1921–1990)