The relationship between apolipoprotein E polymorphism, lipoprotein (a) and fatty liver disease

Area of Science:

• Genetics and Cardiovascular Health
• Metabolic Syndrome Research
• Hepatology and Lipid Metabolism

Background:

• Apolipoprotein E (apo E) gene influences plasma lipoprotein-lipid levels.
• Lipoprotein (a) [Lp(a)] is an atherogenic lipoprotein inversely correlated with triglyceride levels.
• Understanding factors contributing to fatty liver is crucial for public health.

Purpose of the Study:

• To investigate the relationship between apolipoprotein E (apo E) genotype and plasma Lp(a) levels.
• To explore the association of apo E genotype and Lp(a) with fatty liver.
• To identify potential risk factors for fatty liver disease.

Main Methods:

• A cross-sectional study involving 711 fatty liver patients and 711 matched controls.
• Ultrasonography used for fatty liver diagnosis.
• Measurement of apo E genotype, plasma Lp(a), and serum lipid profiles (total cholesterol, triglyceride, LDL-cholesterol, HDL-cholesterol).

Main Results:

• Fatty liver subjects exhibited higher triglyceride and lower HDL-cholesterol levels.
• Multivariate analysis indicated hypertriglyceridemia, high LDL-cholesterol, and low HDL-cholesterol as risk factors for fatty liver.
• The apo E epsilon4 allele and high plasma Lp(a) levels were associated with a reduced odds of fatty liver (OR=0.631 and OR=0.607, respectively).

Conclusions:

• The epsilon4 allele of the apolipoprotein E gene may play a role in the pathogenesis of fatty liver.
• Elevated plasma Lp(a) concentration might be linked to the development of fatty liver.
• Further research is warranted to elucidate the mechanisms underlying these associations.