PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22649756-8 2011 ERalpha down-regulation in response to GS suggests that it can be of potential use in the treatment of estrogen positive tumors that are resistant to tamoxifen. pregna-4,17-diene-3,16-dione 39-41 estrogen receptor 1 Homo sapiens 0-7 15075359-5 2004 Here, we show that guggulsterones activate the estrogen receptor alpha isoform, progesterone receptor, and pregnane X receptor. pregna-4,17-diene-3,16-dione 19-33 estrogen receptor 1 Homo sapiens 47-70 15075359-11 2004 Moreover, our data suggest the need for additional studies of guggulsterones agonist activity against estrogen receptor alpha isoform and the progesterone receptor. pregna-4,17-diene-3,16-dione 62-76 estrogen receptor 1 Homo sapiens 102-125