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  • Title: Lipoprotein lipase activity in heterozygotes for lipoprotein lipase gene mutations reveals a gender bias.
    Author: Murase T, Ebara T, Okubo M.
    Journal: Ann Clin Biochem; 2014 Mar; 51(Pt 2):294-7. PubMed ID: 24081181.
    Abstract:
    BACKGROUND: Familial lipoprotein lipase (LPL) deficiency is a very rare autosomal recessive disorder characterized by marked elevation of plasma triglyceride concentrations. Since 1989, a variety of mutations have been reported in affected patients. Studies on subjects with heterozygous LPL deficiency, on the other hand, have been limited. METHODS: We examined post-heparin plasma LPL activity in 15 subjects with heterozygous LPL deficiency. RESULTS: The heterozygotes exhibited normal or slightly elevated plasma triglyceride concentrations. The mean LPL activity was reduced by 25% in the heterozygotes relative to controls. Interestingly, LPL activity was reduced specifically in female heterozygotes. CONCLUSION: LPL activity is decreased in female, but not in male, subjects heterozygous for a number of different LPL gene mutations.
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