Short answer to pre-emptive mini-chemo idea is no it is not likely good. You would be doing more harm to your other fast dividing cells, such as hair, stomach mucosa, brain cells (there seems to be a good level of neurogenesis involved in short term memory especially), White cells etc. This is provided that the un-modified plant extract has the same effect as the modified chems used in chemotherapy. You would also be increasing the risk of developing leukemia. So my question is: Is it worth the increased risk that would be associated with any preemptive mini-chemo? Just thought I would give the counter argument as food for thought.
I have also heard of people claiming success from omega-3's and deer velvet etc.