Serum alpha(1)-acid glycoprotein (AAG) reportedly can increase with age in
the normal population especially among women. In 33 patients with unipolar
major depression or bipolar disorder serum AAG was measured by age. The aut
hors noted a positive association with age, particularly in depressed femal
e patients (n = 18; r(s) = 0.61; P < 0.01). The authors discuss implication
s for drug pharmacokinetics. Investigation of AAG in mood disorders needs t
o take age and sex into consideration.