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| Content Provider | Springer Nature Link |
|---|---|
| Author | Razzaghi, H. Aston, C. E. Hamman, R. F. Kamboh, M. I. |
| Copyright Year | 2000 |
| Abstract | The lipoprotein lipase (LPL) enzyme plays a major role in lipid metabolism, primarily by regulating the catabolism of triglyceride (TG)-rich lipoprotein particles. The gene for LPL is an important candidate for affecting the risk of atherosclerosis in the general population. Previously, we have shown that the HindIII polymorphism in intron 8 of the LPL gene is associated with plasma TG and HDL-cholesterol variation in Hispanics and non-Hispanic whites (NHWs). However, this polymorphism is located in an intron and hence may be in linkage disequilibrium with a functional mutation in the coding region or intron-exon junctions of the LPL gene. The aim of this study was to initially screen the LPL coding region and the intron-exon junctions by single-strand conformation polymorphism (SSCP) analysis for mutation detection in a group of 86 individuals expressing the phenotype of high TG/low HDL, followed by association studies in a population-based sample of 1014 Hispanics and NHWs. Four sequence variations were identified by SSCP and DNA sequencing in the coding region of the gene, including two missense mutations (D9N in exon 2 and N291S in exon 6), one samesense mutation (V108V in exon 3), and one nonsense mutation (S447X in exon 9). Multiple regression analyses, including these four mutations and the HindIII polymorphic site, indicate that the association of the HindIII site with plasma TG (P=0.001 in NHWs and P=0.002 in Hispanics) and HDL-cholesterol (P=0.007 in NHWs and P=0.127 in Hispanics) is independent of all other LPL variable sites examined. These observations reinforce the concept that the intronic 8 HindIII site is functional by itself and provide a strong rationale for future comprehensive functional studies to delineate its biological significance. |
| Starting Page | 257 |
| Ending Page | 267 |
| Page Count | 11 |
| File Format | |
| ISSN | 03406717 |
| Journal | Human Genetics |
| Volume Number | 107 |
| Issue Number | 3 |
| e-ISSN | 14321203 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2000-09-08 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Genetics (clinical) |
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