More than 1,000 genes have
estrogen receptor binding
sites that control their expression, but less than one - tenth of those have been studied,» noted Jarjour, who is also an associate professor of immunology
at Ohio State's College of Medicine.
Because
estrogen and progesterone
receptor sites are very similar
at the cellular level,
estrogen receptor sites can «wake up» when occupied by progesterone molecules, enhancing the action of
estrogen for a short period of time.