G6PD deficiency and breast cancer.

A study of the relative 2dG6P utilization in mononuclear cells from a group of 150 women with breast cancer was undertaken to evaluate a possible negative correlation between G6PD deficiency and cancer, as suggested by some authors. Twenty-one women (14.00%) were heterozygotes and 2 were homozygotes (1.33%). The prevalence found was not different from that expected. It would therefore seem that the G6PD Mediterranean allele does not play a protective role against the development of breast cancer.