• apoptosis
  • This study evaluated the levels of proliferative activity, angiogenesis, apoptosis and expression of cyclooxygenase-2 in the corpus luteum of female rats with thyroid dysfunction. (wiley.com)
  • In conclusion, thyroid dysfunction differentially affects the levels of proliferative activity, angiogenesis and apoptosis and COX-2 expression in the corpus luteum of female rats. (wiley.com)
  • steroidogenesis
  • Apparently to cope with the radicals produced by this system and by enhanced mitochondrial metabolism, the levels of antioxidant enzymes catalase and superoxide dismutase also increase in parallel with the enhanced steroidogenesis in the corpus luteum. (wikipedia.org)
  • occurs
  • Although thyroid dysfunction occurs frequently in humans and some animal species, the mechanisms by which hypo- and hyperthyroidism affect the corpus luteum have not been thoroughly elucidated. (wiley.com)
  • estrogen
  • In those species in which estrogen is thought to act on the corpus luteum, the mechanism is unknown and the role of pituitary gonadotropic hormones is a matter of speculation. (springer.com)
  • species
  • The search for unifying concepts and mechanisms concerning the hormonal regulation of the corpus luteum has been frustrated by the numerous reports of marked species differences in requirements for luteotropic hormones. (springer.com)
  • presence
  • It is suggested that ascorbate, which is a well-established donor in peroxidase reactions, undergoes rapid oxidation in the presence of this enzyme, producing an intermediate free radical which, if coupled with pregnenolone, might produce progesterone in the corpora lutea. (biochemj.org)
  • Sexual Structures - a luteal phase(presence of the corpus. (coursehero.com)
  • found
  • No histological evidence was found that multiple clutches were produced as indicated by, for example, corpora lutea from a previous clutch and concomitant yolk deposition for a subsequent clutch. (thefreedictionary.com)