Aspirin improves survival rates for colorectal cancer victims -- study

Aspirin, the wonder drug...

Here's yet another news item describing an apparent beneficial side-effect of aspirin use:

Aspirin Seen Aiding Colorectal Cancer Patients

It has long been known that people who took aspirin regularly were less likely to develop tumors of the colon, and now a study has found that even after a diagnosis of colorectal cancer, patients who took aspirin had a much better chance of surviving than non-users.
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The paper was based on an observational study that followed 1,279 men and women with nonmetastatic colorectal cancer, and thus was not the kind of randomized controlled clinical trial considered the gold standard for determining the course of treatment in medicine.

What lends credence to the results is that doctors understand the biological mechanism by which aspirin may prevent the growth and slow the spread of colon cancer, since most colorectal cancer tumors are positive for cyclooxygenase-2, or COX-2, an enzyme that is not expressed in a healthy colon but flares up under certain circumstances, and aspirin is a COX-2 inhibitor.

Link

So, it's not quite conclusive... but it's still interesting, isn't it?