Lipoprotein-associated phospholipase A2 does not predict mortality or new ischaemic events in acute coronary syndrome patients.

Abstract:

AIM:Lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) has been suggested as an independent predictor of cardiovascular events in epidemiological studies. We sought to evaluate Lp-PLA(2) as a risk factor for future cardiovascular events in patients with acute coronary syndromes (ACS) and to elucidate the relationship between Lp-PLA(2) and other known risk markers in ACS patients and healthy control subjects. METHODS AND RESULTS:Blood samples were obtained at randomization in a random subset of ACS patients in the FRISC II (n = 1362) and GUSTO IV (n = 904) studies and in 435 apparently healthy controls of similar age and gender. Median Lp-PLA(2) (mass) levels were 305 ng/mL (FRISC II), 373 ng/mL (GUSTO IV), and 254 ng/mL (healthy controls). Time delay from symptom onset did not influence Lp-PLA(2) levels. In the FRISC II patients and healthy controls, Lp-PLA(2) was significantly correlated with cholesterol (r = 0.3), low-density lipoprotein (r = 0.4 and r = 0.3, respectively), and C-reactive protein (r = 0.08 and r = 0.1, respectively), all P < 0.01. Lp-PLA(2) was not correlated with age, interleukin-6, troponin T, or NT-proBNP in any of the three cohorts. There was no difference in the composite of death and myocardial infarction at 30 days (GUSTO IV) or 180 days (FRISC II) in relation to low, middle, and top tertiles of Lp-PLA(2) at randomization. In FRISC II, the 1 year mortality was 4.2, 4.2, and 4.8% in the low, middle, and top Lp-PLA(2) tertiles, respectively, P = 0.8. In GUSTO IV, 1 year mortality was 7.0, 8.3, and 9.6% in the low, middle, and top Lp-PLA(2) tertiles, respectively, P = 0.5. CONCLUSION:ACS patients had higher Lp-PLA(2) levels than healthy controls. Lp-PLA(2) was significantly correlated to lipid levels but only weakly correlated or unrelated to other well-established risk markers in ACS. The risk of future cardiovascular events or mortality was not related to Lp-PLA(2) levels in ACS patients. The biological role of Lp-PLA(2) and its role as a risk marker in ACS patients still remain unclear.

journal_name

Eur Heart J

journal_title

European heart journal

authors

Oldgren J,James SK,Siegbahn A,Wallentin L

doi

10.1093/eurheartj/ehl565

subject

Has Abstract

pub_date

2007-03-01 00:00:00

pages

699-704

issue

6

eissn

0195-668X

issn

1522-9645

pii

ehl565

journal_volume

28

pub_type

杂志文章,多中心研究,随机对照试验
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    pub_type: 杂志文章,多中心研究,随机对照试验

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    journal_title:European heart journal

    pub_type: 杂志文章,多中心研究,随机对照试验

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    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.eurheartj.a060567

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    更新日期:1994-05-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:2005-10-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:2005-06-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:1992-11-01 00:00:00

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    pub_type: 杂志文章

    doi:10.1093/eurheartj/ehn207

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    更新日期:2008-06-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:1998-04-01 00:00:00

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    pub_type: 杂志文章,多中心研究,随机对照试验

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    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.eurheartj.a059862

    authors: Jansson JH,Nilsson TK,Olofsson BO

    更新日期:1991-02-01 00:00:00

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    pub_type: 杂志文章,多中心研究

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    更新日期:2008-08-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:2008-09-01 00:00:00

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    pub_type: 临床试验,杂志文章,随机对照试验

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    authors: Swedberg K,Kjekshus J,Snapinn S

    更新日期:1999-01-01 00:00:00