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Re: Dr. Atkinson Re: breast cancerFrom: Andrew Folley (agfolley@hotmail.com)Sun Oct 30 12:39:07 2005
In general, the rule Dr.Atkinson gave for tumor doubling times is an excellent rule of thumb particularly for breast cancers. Doubling every 3 to 6 months is the physiology which allows mammograms to be so successful in picking up breast cancers several years before they are identified clinically as a 2 cm mass. The bottom line is that you do not go from a 1 celled cancer to a 4 cm mass in 1 year. It takes several years in general. Women may have a 1 cm mass in January and then 2 cm in April, 4 cm in Sept and tennis ball sized (7cm) by then end of the year. Totally consistent with the doubling time physicians refer to. Arimidex and tamoxifen actually do work the same way. They prevent the stimulation of estrogen receptor positive tumors. Arimidex prevents estrogen porduction from the aromitization of testosterone and tamoxifen blocks estrogen by being tying up and blocking receptor tumors on the tumor. End result is estrogen stimulation of tumor is prevented. I do not know about the costs. Tamoxifen and Arimidex have been both higly successful in preventing reoccurence. The diference between the two is maybe 2 or 3 percentage points with Arimidex having the edge. andrew
>From: GIN11153@aol.com
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