ACE inhibitors, commonly used to control high blood pressure and heart failure in women, may be associated with an increased risk of recurrence in women who have had breast cancer, according to a study by researchers at UCLA's Jonsson Comprehensive Cancer Center.
Beta blockers, used to control high blood pressure and cardiac arrhythmias, appear to have a protective effect, helping to prevent recurrence. When used together, beta blockers appear to help ameliorate the negative affect of ACE inhibitors, said Dr. Patricia Ganz, director of cancer prevention and control research at UCLA's Jonsson Cancer Center and first author of the study.
Ganz characterized the results of the retrospective analysis done using data from the Life After Cancer Epidemiology (LACE) study, which includes 1,779 Kaiser patients diagnosed with early stage breast cancer, as "hypothesis-generating only." She underscored that the results need further corroboration in other, larger clinical data bases.
However, the surprising negative effect of the ACE inhibitors on chances for recurrence is, at the least, cause for caution.
"The message from this is we have to be aware of other chronic health problems and medications that patients take after their diagnosis of breast cancer," said Ganz, an international expert in the fields of quality of life after cancer and cancer survivorship. "We are learning that some medications, while they may be very helpful for treating cardiovascular disease and hypertension, may have an adverse effect on breast cancer survivors."
In the study, just published online in the journal Breast Cancer Research and Treatment, Ganz speculated that ACE inhibitors and beta blockers may work differently in the breast cancer microenvironment, affecting different pathways of inflammation, and that may be the key to their disparate impact on breast cancer recurrence.
It's long been thought that inflammation fuels c
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| Contact: Kim Irwin kirwin@mednet.ucla.edu 310-206-2805 University of California - Los Angeles Health Sciences Source:Eurekalert |