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  • Title: Plasma semicarbazide-sensitive amine oxidase (SSAO) is an independent prognostic marker for mortality in chronic heart failure.
    Author: Boomsma F, de Kam PJ, Tjeerdsma G, van den Meiracker AH, van Veldhuisen DJ.
    Journal: Eur Heart J; 2000 Nov; 21(22):1859-63. PubMed ID: 11052858.
    Abstract:
    AIMS: Experimental evidence has suggested that semicarbazide-sensitive amine oxidase is involved in vascular endothelial damage and in the process of atherosclerosis, through the formation of reactive aldehydes, hydrogen peroxide and ammonia from endogenous substrates. Recent evidence indicates that semicarbazide-sensitive amine oxidase may be identical with the vascular adhesion protein-1. In patients with diabetes mellitus and chronic heart failure the plasma activity is raised relative to the severity of the disease. The prognostic value of plasma semicarbazide-sensitive amine oxidase is not known. METHODS AND RESULTS: Plasma semicarbazide-sensitive amine oxidase activity was measured at baseline in patients with moderate to severe chronic heart failure who participated in a large European study (PRIME-II). The 372 patients who took part in a pre-defined substudy in The Netherlands were investigated and a survival follow-up (maximum 5.4 years, mean 3.4 years) was carried out. Within the follow-up period 195 patients died. Plasma semicarbazide-sensitive amine oxidase was higher at baseline in those who died than in the survivors (653+/-258 vs 540+/-242 mU. l(-1), P<0.001). Dividing the patients into two groups according to plasma values above or below the median value of 550 mU. l(-1), semicarbazide-sensitive amine oxidase was found to be a prognostic parameter for survival, both in univariate (P<0.0001) and in multivariate (P=0.0106) analysis. Semicarbazide-sensitive amine oxidase values >550 mU. l(-1)had a 1. 50 (95% CI, 1.10-2.04) times increased risk of death. CONCLUSION: The finding that plasma semicarbazide-sensitive amine oxidase is an independent prognostic marker for mortality in chronic heart failure supports the concept that an elevated plasma semicarbazide-sensitive amine oxidase level has deleterious effects, possibly due to vascular endothelial damage.
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