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Platelet activation and inflammatory response in patients with non-dipper hypertension

Mehmet Gungor Kaya1, Mikail Yarlioglues, Ozgur Gunebakmaz

  • 1Erciyes University, School of Medicine, Department of Cardiology, Kayseri, Turkey. drmgkaya@yahoo.com

Atherosclerosis
|September 29, 2009
PubMed

Insights

Non-dipper hypertension is linked to higher platelet activation and inflammation, indicated by elevated mean platelet volume (MPV) and high-sensitive C-reactive protein (hs-CRP). These factors may increase atherosclerotic risk in non-dipper patients.

Area of Science:

  • Cardiovascular Research
  • Hypertension Studies
  • Inflammation and Thrombosis

Background:

  • Non-dipper hypertension, characterized by a lack of nocturnal blood pressure dipping, is associated with a significantly higher risk of atherosclerotic events.
  • Platelet activation and inflammatory responses are implicated in the pathogenesis of atherosclerosis.
  • Mean platelet volume (MPV) serves as a marker for platelet activation, while high-sensitive C-reactive protein (hs-CRP) is a key indicator of inflammation.

Purpose of the Study:

  • To investigate whether MPV and hs-CRP levels are elevated in non-dipper hypertensive patients compared to dippers and healthy controls.
  • To explore the correlation between MPV and hs-CRP levels in non-dipper hypertensive individuals.

Main Methods:

  • A study group of 126 individuals, including 86 hypertensive patients and 40 healthy controls, was analyzed.
  • Hypertensive patients were categorized into dipper and non-dipper groups based on ambulatory blood pressure monitoring.
  • MPV was measured from blood samples, and hs-CRP levels were determined using a BN2 model nephlometer.

Main Results:

  • Non-dipper patients exhibited significantly higher MPV levels compared to both dipper patients and normotensive controls.
  • Hs-CRP levels were also significantly elevated in non-dipper patients relative to dippers and normotensives.
  • A significant positive correlation was observed between MPV and hs-CRP levels in the non-dipper hypertensive group.

Conclusions:

  • The findings suggest that non-dipping in hypertension is associated with heightened platelet activation and inflammatory responses.
  • These increased biological responses may contribute to the elevated atherosclerotic risk observed in non-dipper hypertensive patients.
Abstract

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