What really indicates induction?

[Susan Patrick]

I need advice from journal reviewers and/or authors who are knowledgible 
about experimental design requirements necessary to show mRNA induction. 

I will be performing northerns to quantitate mRNA.  I want to show 
conclusively if a particular gene (marker for differentiation) is or is 
not induced by a drug treatment.  I am particularly concerned about 
internal controls.  (In my experiment, F9 cells will be differentiating, 
and I think some internal controls, such as cytoskeleton components, may 
be inapproprate.)  

Any advice would be appreciated.  Also, if you know of a paper which 
demonstrates a thorough experimental design, let me know. Many papers do 
not show or discuss all the controls.

Thanks!!!

Susan Patrick
Email: patrics at okstate.edu