Increased serum level of N-terminal Pro-B-type natriuretic peptide as a possible biomarker of cardiovascular risk in psoriatic patients.

Abstract

Apparently, these days psoriasis is regarded as a systemic disease with frequent cardiovascular comorbidities, such as hypertension, myocardial infarction, valvular defects etc., which may lead to reduced lifespan or even sudden death. Therefore, it is important that biomarkers helpful in early detection or prediction of cardiovascular complications as well as their prevention should be identified. Even though the N-terminal pro B-type natriuretic peptide (NT-proBNP) is a well-known cardiovascular predictor in cardiovascular (CV) patients and in the general population, its usefulness in detection of CV comorbidities in psoriatic patients is still unclear. The aim of the study was to determine whether the N-terminal pro B-type natriuretic peptide (NT-proBNP) concentration was increased in psoriatic patients. The study included 73 psoriatic patients and 45 age-matched healthy individuals. The serum NT pro-BNP concentration as well as lipid profile parameters were assessed in the study and control groups. Correlations between patients' clinical data, their serum NT-proBNP and lipid concentrations were calculated. The serum concentration of NT-proBNP was significantly higher in psoriatic patients (109.22±172.59pg/mL) in comparison with controls (35.82±22.90pg/mL) (P=0.000054). In 28 (38.36%) psoriatic patients the lipid profile was within normal limits, whereas in 45 (61.64%) psoriatic patients triglyceride and/or total cholesterol were increased. Moreover, in both psoriatic groups, i.e. normo- and hyperlipidaemic, NT-proBNP concentrations were significantly higher compared to normo- and hyperlipidaemic controls, P=0.02 and P=0.001 respectively. A positive correlation was found between the NT-proBNP concentration and duration of psoriasis (P<0.05). The study findings confirmed higher NT-proBNP concentrations in psoriatic patients, which could be a useful biomarker of CV disease in both normo- and hyperlipidaemic groups.