Relations of lipoprotein lipase gene polymorphism at Pvu II locus and dietary intervention predisposition in hyperlipidemia population]

In order to investigate the relation of lipoprotein lipase (LPL) gene polymorphism at Pvu II locus and dietary intervention predisposition in hyperlipidemia population, 436 hyperlipidemia patients were screened selected from some communities in western urban districts in Beijing, and then separated into two groups, intervention (248) and control group(188). The serum lipids profile, dietary intakes data were collected and physical examination was conducted in all subjects. Also, the LPL-Pvu II polymorphisms were analyzed by PCR-RFLP. The results showed that the total energy intake, cholesterol level and percentage of energy from dietary fat, and the serum levels of TC, LDL-C and HDL-C were significantly decreased (P < 0.05) after 6-month dietary intervention in intervention group compared with the control group. The decrease range of TC and LDL-C in carriers with LPL-Pvu II (+/+) genotype was much more than others(+/- and -/- genotypes). The results from multiple linear regression analysis showed that the susceptible factors of dietary intervention included LPL-Pvu II (+) allele, the high baseline levels of TC and LDL-C and overweight. The conclusions could be primarily drawn that the variants of LPL-Pvu II locus were important determinants of variation in serum cholesterol response to dietary change in hyperlipidemia population.