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Related Experiment Videos

Aluminium in human breast tissue.

Christopher Exley1, Lisa M Charles, Lester Barr

  • 1Birchall Centre for Inorganic Chemistry and Materials Science, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, UK. c.exley@chem.keele.ac.uk

Journal of Inorganic Biochemistry
|July 17, 2007
PubMed
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This study measured aluminium in breast tissue, finding higher levels in outer regions. Further research is needed to link aluminium exposure from antiperspirants to breast cancer risk.

Area of Science:

  • Environmental Health
  • Oncology
  • Analytical Chemistry

Background:

  • Aluminium exposure is increasing globally, contributing to body burden.
  • Personal care products, like antiperspirants, are potential sources of aluminium exposure.
  • Previous studies suggest a link between aluminium and breast cancer.

Purpose of the Study:

  • To quantify aluminium content in human breast tissue.
  • To investigate regional differences in aluminium distribution within the breast.
  • To explore potential correlations between aluminium levels and breast cancer incidence.

Main Methods:

  • Breast biopsies were collected post-mastectomy.
  • Graphite furnace atomic absorption spectrometry (GFAAS) was used to measure aluminium concentration.

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  • Aluminium levels were compared between inner and outer breast regions.

    • Main Results:

    • Aluminium content in breast tissue ranged from 4-437 nmol/g dry weight.
    • Aluminium content in breast fat ranged from 3-192 nmol/g oil.
    • Significantly higher aluminium levels were found in the outer (axillary, lateral) breast regions compared to inner regions (P=0.033).

    Conclusions:

    • Aluminium is present in human breast tissue, with higher concentrations in outer regions.
    • The regional distribution of aluminium may warrant further investigation in relation to breast cancer incidence.
    • The role of aluminium-based antiperspirants in breast cancer requires continued research.