Paraoxonase gene polymorphism, serum lipid, and oxidized low-density lipoprotein in preeclampsia.
OBJECTIVE
Human paraoxonase-1 (PON-1) is thought to play a role in preeclampsia and atherosclerosis, mainly through a reduction in low-density lipoprotein oxidation. Oxidized low-density lipoprotein (LDL) is very important in endothelial dysfunction of preeclampsia. The aim of the present study was to investigate the association between PON1 gene polymorphism and preeclampsia and to determine concentrations of serum lipid in preeclampsia patients. We aimed also to evaluate serum oxidized LDL levels in normal and preeclampsia patients.


METHODS
We performed the present study in 57 control women and 32 preeclampsia patients. PON-1 genotypes were determined by polymerase chain reaction amplification and restriction fragment length polymorphism. Serum triglyceride, cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol levels were measured. We also measured serum levels of oxidized LDL by ELISA method.


RESULTS
There was no significant difference in PON1 genotype frequencies between the control and preeclampsia patients. The levels of serum cholesterol and high-density lipoprotein were significantly lower in preeclampsia patients compared with that of the control women (p=0.05, and p<0.01, respectively). The serum levels of oxidized LDL in preeclampsia patients were significantly higher than those in the control women (p=0.001).


CONCLUSIONS
These findings support the importance of the atherogenic lipid profile and oxidized LDL that is enhanced in preeclampsia, and these findings may be significant contributors to endothelial dysfunction.
Kim
Young Ju
YJ
Department of Obstetrics and Gynecology, Ewha Womans University, Seoul, Republic of Korea. kkyj@ewha.ac.kr
Park
Hyesook
H
Lee
Hwa Young
HY
Ahn
Young-mo
YM
Ha
Eun Hee
EH
Suh
Suk Hyo
SH
Pang
Myung-Geol
MG
D043303:Aryldialkylphosphatase / Q000235:genetics*; D015415:Biomarkers; D005260:Female; D005838:Genotype; D006801:Humans; D008055:Lipids / Q000097:blood*; D008077:Lipoproteins, LDL / Q000097:blood* / Q000378:metabolism; D010084:Oxidation-Reduction; D011110:Polymorphism, Genetic; D011225:Pre-Eclampsia / Q000097:blood* / Q000235:genetics*; D011247:Pregnancy
D015415:Biomarkers; D008055:Lipids; D008077:Lipoproteins, LDL; C099252:oxidized low density lipoprotein; D043303:Aryldialkylphosphatase; C468406:PON1 protein, human