Pioglitazone, a PPARγ agonist, suppresses CYP19 transcription: evidence for involvement of 15-hydroxyprostaglandin dehydrogenase and BRCA1. - Subbaramaiah K; Howe LR; Zhou XK; Yang P; Hudis CA; Kopelovich L; Dannenberg AJ (Cancer prevention research (Philadelphia, Pa.), 2012)