I. Larson et al., The lipoprotein lipase HindIII polymorphism: Association with total cholesterol and LDL-cholesterol, but not with HDL and triglycerides in 342 females, CLIN CHEM, 45(7), 1999, pp. 963-968
Background: Lipoprotein lipase (LPL) is the rate-limiting enzyme in the hyd
rolysis of core triglycerides in chylomicrons and VLDL.
Methods: We investigated the association between the HindIII polymorphism o
f the LPL gene and fasting glucose, lipid, and lipoprotein concentrations i
n 683 Caucasians. We first stabilized the study subjects, using an 8-day di
et and exercise intervention program before obtaining blood samples. The us
e of this standardization period reduced the variance of all glucose and li
pid concentrations.
Results: In our study, the HindIII allele frequencies for females and males
were 0.29 and 0.34 for H- and 0.71 and 0.66 for H+, respectively. We found
in females, but not in males, a significant association between the HindII
I genotype and total cholesterol (P = 0.007) and LDL-cholesterol (P = 0.018
), with females homozygous for the rare H- allele having the lowest, hetero
zygotes (H-if) having intermediate, and women homozygous for the common Hallele having the highest of each of these lipid traits. With regard to tri
glycerides, HDL-cholesterol, and glucose, no significant effect of the Hind
III genotype was noted in either gender.
Conclusions: These results suggest that in a gender-specific manner, the ra
re LPL HindIII H- allele has a cholesterol-lowering and, therefore, potenti
ally cardio-protective effect compared with the common H+ allele. (C) 1999
American Association for Clinical Chemistry.