Quote:DHEA is weakly bound to SHBG as well, but DHEA-S is not.
http://en.wikipedia.org/wiki/Sex_hormone...g_globulin

I thought this was interesting. The sulfated androgens seemed to be more effective in some ways than the non-sulfated variety, particularly DHEAS. Perhaps it's because they remain unbound and are converted into other molecules down the cascade more readily.

Rats express a reasonable amount of SHBG in their olfactory areas and VMO, IIRC. So this should be relevant if humans are similar.