A high carbohydrate diet induces the beneficial effect of the CC genotype of hepatic lipase C-514T polymorphism on the apoB100/apoAI ratio only in young Chinese males

Abstract

Both diet and genetic background have profound effects on plasma lipid profiles. It was hypothesized that a high carbohydrate (high-CHO) diet could affect the ratios of serum lipids and apolipoproteins (apo) differently in subjects with different genotypes of the C-514T hepatic lipase rs1800588 polymorphism. Fifty-six healthy university students were given a stabilization diet of 54.1% carbohydrate for 7 days, followed with a high-CHO diet of 70.1% carbohydrate for 6 days. Body composition, serum lipids, apolipoproteins and the hepatic lipase C-514T rs1800588 polymorphism were analyzed. The ratios of serum lipids and apolipoproteins were calculated afterwards. At baseline, females have significantly lower waist circumference (WC) (CC genotype: p = 0.049; T carriers: p = 0.015) and waist-to-hip ratio (WHR) (CC genotype: p = 0.019; T carriers: p = 0.000) than males. When compared with those before the high-CHO diet, the body mass index (BMI) (p = 0.043) and WC (p = 0.048) were significantly decreased in the male T carriers, the TG/HDL-C ratios were significantly increased in females (CC genotype: p = 0.047; T carriers: p = 0.003). The TC/HDL-C ratios were significantly decreased in males (CC genotype: p = 0.000; T carriers: p = 0.003). And the LDL-C/HDL-C ratios were significantly decreased in all subjects (males with the CC genotype: p = 0.001; male T carriers: p = 0.000; females with the CC genotype: p = 0.018; female T carriers: p = 0.006). However, the apoB100/apoAI ratio was only significantly decreased in male CC genotype after the high-CHO diet (p = 0.005).

Key Words::

• Diet
• hepatic lipase
• genes
• polymorphism
• cardiovascular diseases
• dyslipidemias
• lipids
• apolipoproteins
• risk assessment
• preventive medicine

Acknowledgments

We thank members of the Fang laboratory for technical support.

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

This research was supported by grants from Sichuan Program for Sciences and Technology 2008HH0008 and the Program for New Century Excellent Talents in Universities in China NCET- 04-0863.