RESUMO
Objective To study the correlation of serum adiponectin (ANP) and brain natriuretic peptide (BNP) levels with left ventricular hypertrophy in essential hypertension patients,and to investigate its potential mechanism.Methods 80 patients with essential hypertension in our hospital were recruited.Secondary hypertension,cardiac,brain and renal insufficiency and diabetes mellitus were excluded in the study patients.Patients were divided into 2 groups:left ventricular hypertrophy group (LVH group,n=40) and hypertension group (hypertension patients without left ventricular hypertrophy,n=40).Age-,sex-,body mass matched health subjects were selected as control group (n =40).Serum levels of ANP and BNP were determined by enzyme-linked immunosorbent assay (ELISA).Left ventricular end diastolic dimension (LVEDD),left ventricular posterior wall thickness (LVPWT) and interventricular septum thickness (IVST) were detected by ultrasonic cardiography.Left ventricular mass (LVM) and left ventricular mass index (LVMI) were calculated according to formula of Devereux.Results There were significant differences in serum levels of APN and BNP and LVMI between hypertension,LVH and control groups [(7.9±0.3) mg/L,(6.7±0.1)mg/L vs.(12.0±0.2)mg/L,(116.1±16.1)μg/Lvs.(182.4±18.5)μg/L,(104.0± ±9.6)g/m2,(153.7±21.0)g/m2 vs.(83.1±9.1)g/m2,respectively,all P＜0.01].Serum APN level was negatively correlated with the severity of LVH (r=-0.789,P＜0.01),while serum BNP level was positively correlated with the severity of LVH (r=0.811,P＜ 0.05).Conclusions Serum APN and BNP levels have correlation with hypertension and hypertension related LVH.