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Platelet activating factor (PAF) and activity of its biosynthetic and catabolic enzymes in blood and leukocytes of male patients with newly diagnosed heart failure.

Abstract：

OBJECTIVES:To evaluate platelet activating factor (PAF) levels, its metabolic enzymes activity and its associations with other inflammatory markers in heart failure (HF) patients. DESIGN AND METHODS:PAF, and two of its key biosynthetic enzymes [lyso-PAF acetyltransferase (lyso-PAF-AT) and DTT-insensitive CDP-choline:1-alkyl-2-acetyl-sn-glycerol cholinephosphotransferase (PAF-CPT)] along with its catabolic enzymes [PAF-acetylhydrolase (PAF-AH) and lipoprotein-associated phospholipase-A(2) (Lp-PLA(2))] were measured in serum and leukocytes of twelve newly diagnosed male HF patients. Serum CRP, TNF-alpha, IL-6, sCD14 and CD40L were also determined. RESULTS:PAF ranged from 0.03 to 5.6 pmol/mL. Median lyso-PAF-AT, PAF-CPT, PAF-AH and Lp-PLA(2) activities were 4.1, 68.42, 644.44 pmol/min/mg protein and 51.42 pmol/min/microL correspondingly. Lyso-PAF-AT and PAF-CPT activities positively correlated with CRP, IL-6 and with each other, whereas PAF-CPT activity correlated with sCD14 and CD40L (P<0.05). CONCLUSIONS:PAF's biosynthetic enzyme activities correlated with inflammatory and immunologic molecules, which are activated in HF. Our study indicates a potential role of PAF in HF patients.

journal_name

Clin Biochem

journal_title

Clinical biochemistry

authors

Detopoulou P,Nomikos T,Fragopoulou E,Antonopoulou S,Kotroyiannis I,Vassiliadou C,Panagiotakos DB,Chrysohoou C,Pitsavos C,Stefanadis C

doi

10.1016/j.clinbiochem.2008.09.113

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

44-9

issue

1-2

eissn

0009-9120

issn

1873-2933

pii

S0009-9120(08)00522-5

journal_volume

42

pub_type

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