LC/DAD determination of biogenic amines in serum of patients with diabetes mellitus, chronic urticaria or Hashimoto's thyroiditis

Biogenic amines are integral part of nearly every cell. In present study, we used method of acidic extraction of histamine (His), of polyamines putrescine (Put), spermidine (Spd) and catecholamines epinephrine (Epi) and norepinephrine (NE) from human serum; precolumn derivatization with dansyl chloride, and LC/DAD analysis of the biogenic amines, in aim to monitor differences of their levels in patients with diabetes mellitus , chronic urticaria , and Hashimoto's thyroiditis, compared to healthy subjects, and to observe them as possible markers for immune mediated diseases. Method of retention times was used for determination of serum biogenic amines. We found statistically significant differences in putrescine and histamine levels in diabetes mellitus patients; putrescine, histamine, spermidine and epinephrine levels in chronic urticaria patients compared to healthy controls, and putrescine and spermidine levels in Hashimoto's thyroiditis patients, compared to controls. Norepinephrine was found only in serum of patients with chronic urticaria . The values of recovery, evaluated in controls, varied between 85.7% and 106.7%. The statistically significant changes in putrescine, histamine, spermidine and epinephrine levels in patients compared to healthy people reflects the existence of biochemical disturbances in mentioned immune-mediated diseases.