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Old 12-21-2005, 02:57 PM   #1
Christine MH-UK
Senior Member
 
Join Date: Sep 2005
Posts: 414
Hormone receptors do not predict the HER2/neu status in all age groups of women

http://annonc.oxfordjournals.org/cgi...act/16/11/1755

"Background: In breast cancer, there is an inverse relationship between HER2/neu overexpression and receptors for estrogen (ER) or progesterone (PR). Some clinical observations such as the age-related association between hormone receptors and tumour grade, which predicts HER2/neu overexpression, suggest an age-related relationship.


Patients and methods: Our study population consisted of 1362 consecutive women receiving primary surgery for non-metastatic invasive breast cancer. We compared the relationship between both hormone receptors and HER2/neu overexpression in different age groups taking other tumour characteristics into account. Results: In a multivariate model, considering the overall group, a negative ER, a negative PR and a high tumour grade were predictive for HER2/neu overexpression (P <0.001). Considering 246 women aged 45 years, the only predictor for HER2/neu overexpression in this age category was a high tumour grade (P = 0.003). Considering the 1116 women aged >45 years, ER (P = 0.001), PR (P = 0.001) and tumour grade (P <0.001) were associated with HER2/neu (P <0.001).

Conclusion: Our findings indicate that the association between ER, PR and HER2/neu overexpression varies with age. The hormone receptors are not an independent predictor for the HER2/neu status in young women while they are in elder patients."

Basically, under 45, there is no association between hormone receptor status and her2 status."

Last edited by Christine MH-UK; 12-21-2005 at 02:59 PM.. Reason: Added material to make it clearer
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