Increased levels of platelet-derived microparticles in pulmonary hypertension.

Abstract:

INTRODUCTION:Thrombosis and coagulation abnormalities are thought to be involved in disease progression of pulmonary hypertension. Platelet-derived microparticles (PDMP) are released from platelets following stimulation and have recently been demonstrated to play an important role in pathogenesis of various diseases. This study aimed to evaluate PDMP levels in patients with pulmonary hypertension. MATERIALS AND METHODS:Our cross-sectional study enrolled a total of 113 participants including 73 patients with pulmonary hypertension and 40 participants to serve as a control group. PDMP levels were measured using a PDMP ELISA kit, which detects glycoproteins CD42a and CD42b. Clinical parameters, including exercise capacity and hemodynamic parameters, were collected, and the relationship to PDMP levels were evaluated. RESULTS:PDMP levels were significantly higher in patients than in participants in the control group (23.2 ± 39.4 U/mL and 7.8 ± 3.6 U/mL, respectively, P < 0.05). PDMP levels in patients with chronic thromboembolic pulmonary hypertension were correlated with right atrial pressure and cardiac index. PDMP levels were higher in male patients with idiopathic pulmonary arterial hypertension. Furthermore, patients administered a higher dose of epoprostenol had a tendency for lower PDMP levels. CONCLUSIONS:The data suggest that PDMP levels are increased in patients with pulmonary hypertension. Further study is needed to understand the mechanism and impact of PDMP on disease progression.

journal_name

Thromb Res

journal_title

Thrombosis research

authors

Ogawa A,Matsubara H

doi

10.1016/j.thromres.2020.07.030

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

120-124

eissn

0049-3848

issn

1879-2472

pii

S0049-3848(20)30321-2

journal_volume

195

pub_type

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