[Histonet] Negative Control Tissue - No / Few Macrophages

[Robert Hughes]

Hello,
 
Does anyone know of a good control tissue absent of (or with few) macrophages?
 
I have seen a number of postings regarding tissue positive for various inflammatory markers (F4/80, MOMA. CD68).
 
I am running F4/80 (Serotec, Rat anti-ms F4/80) on ms. tissue.  I have a number of positive control tissues -- liver, spleen, etc.
 
Any suggestions would be very helpful.
 
Thank you.
 
Gustave
 
Gustave T. Hebert
Research Scientist I
Pfizer
Cambridge, MA 02140