LPL gene Pvu II polymorphism and hypertriglyceridemia: a meta-analysis involving 1,640 subjects

BACKGROUND/AIMS: Although lipoprotein lipase (LPL) gene Pvu II polymorphism has been associated with an increased risk of hypertriglyceridemia (HT), there is no clear consensus within the scientific community. METHODS: A meta-analysis of 1,640 subjects from six individual studies was conducted to better elucidate the potential relationship between the LPL gene Pvu II polymorphism and HT within the Chinese population. Pooled odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were evaluated by using fixed effect models. RESULTS: Our analysis indicated a significant association between LPL gene Pvu II polymorphism and HT within the Chinese population under allelic (OR, 1.550; 95% CI, 1.320 to 1.830; p = 1.158 × 10-7), recessive (OR, 0.540; 95% CI, 0.390 to 0.750; p = 0.0002), dominant (OR, 1.889; 95% CI, 1.501 to 2.377; p = 5.960 × 10-8), homozygous (OR, 2.167; 95% CI, 1.531 to 3.067; p = 1.242 × 10-5), heterozygous (OR, 1.810; 95% CI, 1.419 to 2.309; p = 1.842 × 10-6), and additive genetic models (OR, 1.553; 95% CI, 1.320 to 1.828; p = 1.158 × 10-7). CONCLUSIONS: Because LPL gene Pvu II restriction fragment length polymorphism polymorphism was associated with an elevated risk of HT, the P+ allele carriers of the LPL gene might be predisposed to HT.

Effect of lipoprotein lipase gene polymorphism on lipid profile and body mass index in healthy Korean adult / 대한내과학회지

BACKGROUND: Lipoprotein lipase(LPL) plays a pivotal role in triglyceride-rich lipoprotein metabolism. It removes TG-rich lipoprotein from circulation by hydrolysing TG and produces active form of HDL. It also affects the development and maintenance of obesity by regulating the fatty acid metabolism of the adipose tissue. Many studies about the association of the genetic variation of LPL and dyslipidemia have been performed, but the results were not consistent. We tried to characterize the phenotypes of the LPL genetic variation in Korean. METHODS: Healthy Korean adults (n=110) were genotyped for Hind III/Pvu II RFLP and Ser447Ter mutation of the LPL gene by PCR-digestion method. We investigated the association of the genetic variations with the lipids, the lipoprotein concentrations and the body mass index(BMI). RESULTS: The allele frequencies of Hind III RFLP, Pvu II RFLP and Ser447Ter mutation were H1:H2=33%:67%, P1:P2=40%:60% and Ser447: Ter447=90%:10%. Ser447Ter mutation carriers had higher HDL cholesterol level than non-carriers (59+/-10mg/dl versus 53+/-11mg/dl, p=0.049) and the Pvu II RFLP is associated with increased body mass index. (P1P1:P1P2:P2P2 = 22.1+/-2.0 kg/m2: 23.5+/-2.7 kg/m2: 24.5+/-2.6 kg/m2, p=0.003) CONCLUSION: The genetic variations of the LPL gene in healthy Korean adult resulted in increased HDL cholesterol and increased BMI. These results were different from previous studies. This difference may reflect the racial difference from the diet and the linkage disequilibrium