Serum zinc and copper in patients with atherosclerosis andThromboangiitis obliterans

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Abstract
The serum concentration of Zn and Cu were determined in 126 controls and 160 patients-with atherosclerosis obliterans (AO) and 53 patients with thromboangiitis abliterans (TO). The concentration of serum Zn decreases with age both in controls and patients with AO in all the evolutive stages of the disease. In patients with TO, the concentration of serum Zn shows no correlation with age. The significantly lower values of serum Zn in controls and patients with AO over 61 yr than those below this age is attributed to the decreased Zn supply, especially to some individual cellular abnormalities. The values of serum Cu are higher in patients with AO and TO than in controls irrespective of the evolutive stage of the disease. This was related to cigaret smoking and inflammation. The Zn/Cu ratio in the serum is below 1 in patients with AO and TO and in controls over 61-yr-old. The pathogenetic role of this ratio in atherosclerosis and inflammation still remains a controversial question.