title: Cytosolic oestrogen receptor content of breast cancer tissue in blacks and whites.
abstract: We have examined the oestradiol receptor (ER) content of cytosols from 560 Black and White patients. The tumours from the White group contained a significantly lower proportion on ER-negative tumors (35.4%) compared with those from the Black group (46.5%). The proportion of ER-positive tumours is significantly greater in the post- than in th premenopausal White group. The frequencies of ER-positive tumours in the post- and premenopausal Black groups are not significantly different, resembling the situation described by others in Japanese women.
mesh_terms: D000328:Adult; D001741:Black or African American; D000367:Age Factors; D000368:Aged; D044383:Black People; D001943:Breast Neoplasms / Q000032:analysis*; D003600:Cytosol / Q000032:analysis; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D011959:Receptors, Estradiol; D011960:Receptors, Estrogen / Q000032:analysis*; D013019:South Africa; D044465:White People
chemical_list: D011959:Receptors, Estradiol; D011960:Receptors, Estrogen