Submitted on March 6, 2006
Revised on April 25, 2006
Accepted on May 31, 2006
A systematic review and meta-analysis of the relationship between lipoprotein lipase Asn291Ser variant and diseases
Yaomin Hu, Wei Liu, Rong Huang, and Xiaoying Zhang
Division of Endocrinology, Department of Internal Medicine, Renji hospital, Shanghai Jiaotong University, Shanghai 200127
Corresponding Author: amin99{at}163.com
This systematic review attempted to summarize the associations between Asn291Ser variant in lipoprotein lipase (LPL) gene and dyslipidemia, the risk of type 2 diabetes mellitus (T2DM) and coronary heart disease (CHD). In addition, the relationships between Asn291Ser variant and other metabolic diseases such as obesity and high blood pressure were also investigated in this systematic review. We systematically reviewed the literature by means of a meta-analysis. Twenty-one articles including 19246 white subjects were selected for this meta-analysis. The summary standardised mean difference (SMD) of plasma triglyceride for carriers compared to non-carriers of Asn291Ser variant was 3.23 (p<0.00001). The summary SMD of plasma HDL-C for carriers compared to non-carriers of Asn291Ser variant was 3.42 (p<0.0001). The summary SMD about the association of Asn291Ser variant with plasma triglyceride increased with the increasing age and weight gain. Significant interactions between LPL Asn291Ser variant and fasting glucose, T2DM and CHD were seen (P=0.02, 0.04, 0.01 respectively). No significant interactions were seen between LPL Asn291Ser variant and body mass index (BMI), waist-hip ratio (WHR), and blood pressure (P>0.05). This meta-analysis indicates that Asn291Ser variant in LPL gene is a risk factor for dyslipidemia, characterized by hypertriglyceridemia and low HDL-C levels. And Asn291Ser variant in LPL gene predisposes to more severe dyslipidemia with the increasing age and weight gain. Also, this meta-analysis shows that LPL Asn291Ser variant is associated with CHD and T2DM.