title: Vitamin B12 deficiency: a new risk factor for breast cancer?
abstract: A prospective epidemiologic study found a threshold level for serum vitamin B12, below which an increased risk of breast cancer among postmeno-pausal women was observed. This is the first observation to suggest that B12 status may influence breast carcinogenesis and therefore may be a modifiable risk factor for breast cancer prevention.
authors.affiliation: Vitamin Bioavailability Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA.
authors.forename: S W
authors.initials: SW
authors.lastname: Choi
mesh_terms: D000818:Animals; D001943:Breast Neoplasms / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D017698:Postmenopause; D011446:Prospective Studies; D012307:Risk Factors; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000150:complications* / Q000453:epidemiology
chemical_list: D014805:Vitamin B 12