title: Magnetic field profiles in normal human breast during the menstrual cycle.
abstract: OBJECTIVE
  To investigate the subtle magnetic fields produced by living normal breast tissue during the menstrual cycle.
  
  
  METHODS
  The magnetic activity of the breast was recorded in four young women, 26-28 years old; two had regular and two irregular menstrual cycles. The recordings were accomplished with a biomagnetometer and covered two complete menstrual cycles. The results were correlated with estrogen and progesterone levels on days 7, 14 and 21 of the menstrual cycle.
  
  
  RESULTS
  The magnetic breast recordings in the two young women with the regular cycling endometrium showed a biphasic magnetic curve, apparently corresponding to the proliferative and secretory phase of the menstrual cycle. By contrast, the two young women with irregular menstrual cycles showed a monophasic magnetic curve.
  
  
  CONCLUSIONS
  It is suggested that a biphasic, but not a monophasic, pattern of magnetic activity in the breast is indicative of an ovulatory endometrial cycle.
authors: Departments of Medical Physics, Democritus University of Thrace Medical School, Alexandroupolis, Greece.
authors: P A
authors: PA
authors: Anninos
authors: A
authors: A
authors: Giatromanolaki
authors: A
authors: A
authors: Kotini
authors: L
authors: L
authors: Sivridis
authors: N
authors: N
authors: Koutlaki
authors: P
authors: P
authors: Anastasiadis
mesh_terms: D000328:Adult; D001940:Breast / Q000502:physiology*; D004574:Electromagnetic Fields; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D008597:Menstrual Cycle / Q000097:blood / Q000502:physiology*; D010507:Periodicity; D011374:Progesterone / Q000097:blood
chemical_list: D011374:Progesterone; D004958:Estradiol