Proctor M S, Fletcher H V, Shukla J B, Rennert O M
J Invest Dermatol. 1975 Oct;65(4):409-11. doi: 10.1111/1523-1747.ep12607659.
Samples of blood, anticoagulated with EDTA, from 11 patients with psoriasis and 11 individuals without psoriasis were analyzed for their polyamine content. The average spermidine level in patients with psoriasis was approximately twice that of the controls and the average spermine level was three times that of the controls. The level of spermidine and spermine in the skin of two patients with psoriasis were significantly depressed as compared to those of controls.