Paraoxonase and arylesterase activities in dipper and non-dipper prehypertensive subjects.
Paraoxonase-1, a high-density lipoprotein linked enzyme complex, was shown to be decreased in several cardiovascular diseases. We aimed to explore whether serum paraoxonase and arylesterase activities differ in dipper and non-dipper prehypertensive subjects compared to healthy controls.Sixty prehypertensive subjects and 30 controls were enrolled. All subjects underwent echocardiographic assessment and 24-hour ambulatory blood pressure monitoring (ABPM). According to the blood pressure (BP) course on ABPM, prehypertensive subjects were categorized into two: non-dipper prehypertensive (NDPH) and dipper prehypertensive (DPH) groups. Serum paraoxonase and arylesterase activities were detected spectrophotometrically.Paraoxonase and arylesterase activities were significantly lower in patients with NDPH compared to both DPH and control groups. Both paraoxonase and arylesterase activities showed significant negative correlations with BP and left ventricular mass index.We have demonstrated that NDPH subjects have lower paraoxonase and arylesterase activities compared to DPH subjects and normotensives. Further prospective studies are needed to clarify the role of paraoxonase and arylesterase activities in the development of overt hypertension in prehypertensive subjects.
From the Cardiology Department (MY, AY, ET, MZB, NO, ZA); Internal Medicine/Division of Emergency (EG); and Biochemistry Department, Dicle University School of Medicine, Diyarbakir, Turkey (AE).
Murat
M
Yuksel
Abdulkadir
A
Yildiz
Ebru
E
Tekbas
Ercan
E
Gunduz
Aysun
A
Ekinci
Mehmet Zihni
MZ
Bilik
Necdet
N
Ozaydogdu
Zuhal
Z
Atilgan
D000328:Adult; D043303:Aryldialkylphosphatase / Q000097:blood*; D018660:Blood Pressure Monitoring, Ambulatory; D002265:Carboxylic Ester Hydrolases / Q000097:blood*; D016022:Case-Control Studies; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D018384:Oxidative Stress; D058246:Prehypertension / Q000000981:diagnostic imaging / Q000201:enzymology*; D011446:Prospective Studies
D002265:Carboxylic Ester Hydrolases; C019734:arylesterase; D043303:Aryldialkylphosphatase