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Association between serum lipoprotein-associated phospholipase A2, ischemic modified albumin and acute coronary syndrome: a cross-sectional study

  • Fumeng Yang
  • Liping Ma
  • Lili Zhang
  • Yilian Wang
  • Changxin Zhao
  • Wenjun Zhu
  • Wei Liang
  • Qian LiuEmail author
Original Article

Abstract

Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a newly emerging biomarker with strong pro-inflammatory effects, and is an independent risk predictor of atherosclerotic plaque rupture and thrombosis. In addition, ischemic modified albumin (IMA) is another important marker for the evaluation of myocardial ischemia, and has been approved by the U.S. Food and Drug Administration. The objective of this study was to investigate serum Lp-PLA2 and IMA in the early diagnosis, progression and prognosis of acute coronary syndrome (ACS). Serum Lp-PLA2 and IMA were detected using an AU5800 automatic biochemical analyzer in samples from 180 patients with ACS [n = 60 with unstable angina pectoris (UA), n = 56 with non-ST segment elevation myocardial infarction (NSTEMI), and n = 64 with ST segment elevation myocardial infarction (STEMI)] and 60 healthy control subjects. The relationship between Lp-PLA2 and IMA with Gensini score and the number of coronary artery lesions was explored, and logistic regression was conducted to identify risk factors for major adverse cardiovascular events (MACE). Serum Lp-PLA2 and IMA were significantly higher in all ACS subgroups compared to the control group (P < 0.05), were positively associated with the severity of ACS based on the Gensini score (P < 0.05), and were significantly higher in patients with double- and triple-vessel lesions compared to those with single-vessel lesions and healthy controls (P < 0.05). Logistic regression identified Lp-PLA2, IMA, and troponin I levels as independent risk factors for MACE. Lp-PLA2 and IMA were predictive of the degree of myocardial ischemia in patients with ACS, and may provide important clinical significance for the early diagnosis of ACS and the choice of treatment strategy.

Keywords

Acute coronary syndrome Lipoprotein-associated phospholipase A2 Ischemia-modified albumin Gensini score Major adverse cardiovascular events 

Abbreviations

ACS

Acute coronary syndrome

CI

Confidence interval

HDL-C

High-density lipoprotein cholesterol

IMA

Ischemic modified albumin

LDL-C

Low-density lipoprotein cholesterol

Lp-PLA2

Lipoprotein-associated phospholipase A2

MACE

Major adverse cardiovascular events

NSTEMI

Non-ST segment elevation myocardial infarction

OR

Odds ratio

PCI

Percutaneous coronary intervention

STEMI

ST segment elevation myocardial infarction

TC

Total cholesterol

TG

Triglycerides

TnI

Troponin I

UA

Unstable angina pectoris

Notes

Author contributions

FY and QL conceived and designed the experiments. LZ, YW, and CZ performed the experiments. WZ, WL and LM analyzed the data. FY, LM, and QL wrote or revised the manuscript. All the authors approved the final submitted version of the manuscript.

Funding

Research projects of Bengbu Medical College (BYKY17184, 18178), Young and Middle-aged Talents Growth Foundation of the Second People’s Hospital of Lianyungang (TQ201709), and Health Scientific Research Project in Lianyungang (201721, 201817).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest with this work.

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Copyright information

© Springer Japan KK, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Laboratory MedicineThe Second People’s Hospital of LianyungangLianyungangPeople’s Republic of China
  2. 2.Department of EmergencyThe Second People’s Hospital of LianyungangLianyungangPeople’s Republic of China
  3. 3.Department of CardiovascularThe Second People’s Hospital of LianyungangLianyungangPeople’s Republic of China

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