In:
Translational Stroke Research, Springer Science and Business Media LLC
Abstract:
Neutrophil-activating peptide
2 (NAP-2, CXCL7), a platelet-derived neutrophil chemoattractant, is involved in inflammation. We investigated associations between NAP-2 levels, neutrophil extracellular traps (NETs) formation, and fibrin clot properties in atrial fibrillation (AF). We recruited 237 consecutive patients with AF (mean age, 68 ± 11 years; median CHA 2 DS 2 VASc score of 3 [2–4]) and 30 apparently healthy controls. Plasma NAP-2 concentrations were measured, along with plasma fibrin clot permeability (K s ) and clot lysis time (CLT), thrombin generation, citrullinated histone H3 (citH3), as a marker of NETs formation, and 3-nitrotyrosine reflecting oxidative stress. NAP-2 levels were 89% higher in AF patients than in controls (626 [448–796] vs. 331 [226–430] ng/ml; p 〈 0.0001). NAP-2 levels were not associated with demographics, CHA 2 DS 2 -VASc score, or the AF manifestation. Patients with NAP-2 in the top quartile ( 〉 796 ng/ml) were characterized by higher neutrophil count (+ 31.7%), fibrinogen (+ 20.8%), citH3 (+ 86%), and 3-nitrotyrosine (+ 111%) levels, along with 20.2% reduced K s and 8.4% prolonged CLT as compared to the remaining subjects (all p 〈 0.05). NAP-2 levels were positively associated with fibrinogen in AF patients (r = 0.41, p = 0.0006) and controls (r = 0.65, p 〈 0.01), along with citH3 (r = 0.36, p 〈 0.0001) and 3-nitrotyrosine (r = 0.51, p 〈 0.0001) in the former group. After adjustment for fibrinogen, higher citH3 (per 1 ng/ml β = -0.046, 95% CI -0.029; -0.064) and NAP-2 (per 100 ng/ml β = -0.21, 95% CI -0.14; -0.28) levels were independently associated with reduced K s . Elevated NAP-2, associated with increased oxidative stress, has been identified as a novel modulator of prothrombotic plasma fibrin clot properties in patients with AF.
Type of Medium:
Online Resource
ISSN:
1868-4483
,
1868-601X
DOI:
10.1007/s12975-023-01165-1
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2023
detail.hit.zdb_id:
2541897-X
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