title: Relationship between flow cytometric parameters, steroid receptors, and menopausal status in breast cancers.
abstract: Of 163 human breast cancers examined, 68% contained detectable aneuploid populations, whilst 32% had apparently normal DNA distributions. A slightly higher incidence of aneuploidy was observed in pre-menopausal patients (83%) than in post-menopausal patients (66%). Also, pre-menopausal patients had slightly higher proportions of S-phase or cycling (S + G2 + M) cells. Estradiol receptor negative (ER-) tumours from post-menopausal patients were found to have the lowest incidence of aneuploidy (59%) and ER- tumours from pre-menopausal patients the highest (91%). There were no significant differences in the proportions of cycling nuclei when receptor status and menopausal status were considered. A weak relationship is shown to exist between flow cytometric data and two common prognostic indicators of breast cancer, namely receptor status and menopausal status.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000782:Aneuploidy; D001943:Breast Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D004247:DNA / Q000032:analysis; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D007399:Interphase; D008593:Menopause; D008875:Middle Aged; D011379:Prognosis; D011959:Receptors, Estradiol / Q000032:analysis*; D011960:Receptors, Estrogen / Q000032:analysis*
chemical_list: D011959:Receptors, Estradiol; D011960:Receptors, Estrogen; D004247:DNA