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Related Experiment Videos

Lipid composition changes in normal breast throughout the menstrual cycle

T E Dzendrowskyj1, E A Noyszewski, J Beers

  • 1University of Pennsylvania Medical Center, Department of Radiology, Philadelphia 19104, USA.

Magma (New York, N.Y.)
|June 1, 1997
PubMed
Summary

Breast lipid composition changes cyclically throughout the menstrual cycle. Magnetic resonance spectroscopy (MRS) revealed these lipid profile shifts in healthy women, offering insights into normal breast metabolic activity.

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Area of Science:

  • Biomedical imaging
  • Magnetic resonance spectroscopy
  • Breast cancer research

Background:

  • Magnetic resonance imaging (MRI) aids breast cancer detection, often supplementing mammography.
  • Proton MR spectroscopy (1H MRS) detects lipid profile alterations linked to tumor development.
  • Normal breast tissue exhibits high metabolic activity, complicating interpretation of lipid changes.

Purpose of the Study:

  • To assess menstrual cycle-related changes in breast lipid composition in healthy women.
  • To utilize magnetic resonance spectroscopy (MRS) for evaluating these cyclic variations.
  • To differentiate normal metabolic fluctuations from potential disease indicators.

Main Methods:

  • Biweekly breast examinations using MRS at 4.0 Tesla.

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  • Inclusion of five women with no history of breast disease.
  • Monitoring of water and fat resonances to analyze lipid content.

    • Main Results:

    • Cyclic changes in breast lipid content observed throughout the menstrual cycle.
    • Intensity variations in methylene (-CH2-) and allylic methylene (CH2CH2*CH=) resonances at 2.1 ppm and 1.3 ppm.
    • Consistent cyclic trends correlating with follicular, ovulatory, and luteal phases observed in all subjects.

    Conclusions:

    • Menstrual cycle influences breast lipid composition in healthy women.
    • Observed lipid changes suggest cell synthesis or metabolic activity.
    • Findings provide a baseline for understanding lipid responses in breast disease.