Breast cancers classified by estrogen receptor (ER) and/or progesterone receptor (PR)
expression have different clinical, pathologic, and molecular features. We examined existing …

Adult stem cells of the mammary gland (MaSCs) are a highly dynamic population of cells
that are responsible for the generation of the gland during puberty and its expansion during …

Purpose: Obesity is associated with adverse outcomes in postmenopausal women with
breast cancer. In premenopausal women, the association is less clear. Methods: A …

BACKGROUND Obesity has been shown to affect breast carcinoma prognosis, with the
heaviest women having a higher mortality due to breast carcinoma. Few studies have …

Risk factors were examined for subgroups of breast cancer characterized by estrogen
receptor (ER) and progesterone receptor (PR) status. Data from the Carolina Breast Cancer …

MATERIALS AND METHODS The study population consisted of 16 non-pregnant women
(mean age 58.7 yr; range 45-83 yr) with radiographic or clinical evidence of recurrent or …

Objective: To assess risk factors for breast cancer among very young compared to older
premenopausal women. Methods: Between 1990 and 1992 a population-based case …

Abstract Characterization of breast tumors on both estrogen receptor (ER) and progesterone
receptor (PR) status suggests distinct biological and clinical profiles. We hypothesized that …

Numerous hormonal factors contribute to the lifetime risk of breast cancer development.
These include inherited genetic mutations, age of menarche, age of menopause, and parity …

Background: Numerous studies have reported differences in cancer staging at diagnosis
and in survival between Black and White patients with breast cancer. Utilizing data obtained …