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Related Experiment Videos

Photon emission from normal and tumor human tissues.

F Grasso1, C Grillo, F Musumeci

  • 1Istituto di Fisica, Università di Catania, Italy.

Experientia
|January 15, 1992
PubMed
Summary

Human tissue samples were analyzed for photon emission. Tumor tissues exhibited significantly higher photon emission rates compared to normal tissues, suggesting a potential diagnostic marker.

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Area of Science:

  • Biophysics
  • Medical Physics
  • Oncology

Background:

  • Human tissues can emit photons, a phenomenon known as ultra-weak photon emission (UWPE).
  • Understanding UWPE variations in different tissue types may offer diagnostic insights.

Purpose of the Study:

  • To measure and compare photon emission rates in normal and tumor human tissues.
  • To investigate the potential of UWPE as a biomarker for cancer detection.

Main Methods:

  • Utilized a low-noise photomultiplier and data acquisition system to measure photon emission.
  • Analyzed 25 human tissue samples (9 normal, 16 tumor) surgically removed.
  • Measured photon emission in the visible and near-ultraviolet spectrum.

Main Results:

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  • Normal tissues showed low photon emission rates (tens of photons/cm2 min).
  • Most tumor tissue samples displayed significantly higher photon emission rates.
  • A clear distinction in emission rates was observed between normal and cancerous tissues.

Conclusions:

  • Photon emission levels differ markedly between normal and tumor human tissues.
  • Ultra-weak photon emission shows promise as a non-invasive diagnostic tool for cancer.
  • Further research is warranted to validate UWPE as a clinical biomarker.