to support the estrogen hypothesis in the pathogenesis of leiomyoma , total cellular estrogen receptor ( er ) levels ( the sum of levels in cytosol and nuclear kcl-extractable and nuclear non-kcl-extractable fractions ) were assayed and compared with levels of progestin ( pr ) and androgen ( ar ) receptors in the leiomyoma and the corresponding myometrium .
C0007634
cellular
C1383501
cytosol