期刊
JOURNAL OF PEDIATRIC GENETICS
卷 11, 期 3, 页码 179-184出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0040-1722212
关键词
IUGR neonates; APOE gene polymorphism; lipid profile
类别
资金
- PSG PRIME [11/32]
This study aimed to investigate APOE gene polymorphism and lipid profile in IUGR and AGA neonates, showing a lower frequency of the ε4 allele in the IUGR group and no increase in the ε4 allele associated with adult-onset diseases. Neonates with the ε4 allele exhibited abnormal lipid profiles in both groups, suggesting a possible association.
Objective The objective of this study is to study the profile of apolipoprotein E ( APOE) gene polymorphism and lipid profile among intrauterine growth restriction (IUGR) and appropriate for gestational age (AGA) neonates. This is an observational study. This study was done at the neonatal unit of a teaching hospital in South India. All consecutively born IUGR neonates (cases) of more than 32 weeks' gestational age and AGA neonates (controls) were enrolled for the study. Genomic DNA extraction was done from a total of 102 peripheral venous blood samples. Genotyping of the APOE rs429358 and rs7412 defining the epsilon 2, epsilon 3, and epsilon 4 alleles was done by polymerase chain reaction-restriction fragment length polymorphism method. Prefeed venous blood was collected and analyzed for lipid profile estimation. The allelic frequencies of cases versus control were epsilon 2-9 (8.7%) versus 3 (2.9%); epsilon 3-88 (84.6%) versus 81 (79.4%); and epsilon 4-7 (6.7%) versus 18 (17.6%). The frequency of epsilon 4 isoform allele, associated with adult onset of metabolic diseases was less among the IUGR group. The mean total cholesterol (TC), Low-Density Lipoprotein (LDL), High-Density Lipoprotein, and triglyceride (TG) were 107.59 +/- 35.99, 51.69 +/- 24.68, 21.75 +/- 9.58, and 151.22 +/- 61.84mg/dL, respectively, in the IUGR group. The mean TC and LDL levels in IUGR group were marginally higher than AGA neonates (107 +/- 35.99 vs. 100.37 +/- 22.69mg/dL and 51.69 +/- 24.68 versus 46.9 +/- 19.51mg/dL, p>0.05). In both groups, the mean TC and TGL levels were elevated in the epsilon 4 isoform subgroup (p>0.05). In our study, the epsilon 2 allele was the second most predominant APOE isoform and the epsilon 4 allele of the APOE gene associated with adult-onset diseases was not increased among IUGR neonates. Neonates with epsilon 4 allele showed an abnormal lipid profile in both study groups suggesting a possible association.
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