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Updated: May 9, 2026

A Familial Hypercholesterolemia Human Liver Chimeric Mouse Model Using Induced Pluripotent Stem Cell-derived Hepatocytes
Published on: September 15, 2018
Familial hypercholesterolemia and the atherosclerotic disease
1Department of Cardiology, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.
Insights
Familial hypercholesterolemia (FH) is a genetic condition causing high cholesterol. Combination therapy with ezetimibe offers improved results for FH patients when statins alone are insufficient.
Area of Science:
- Cardiology
- Genetics
- Metabolic Disorders
Background:
- Familial hypercholesterolemia (FH) is an autosomal dominant inherited disorder.
- It leads to premature atherosclerotic cardiovascular diseases due to genetic mutations affecting LDL receptors.
- Heterozygous FH affects 1 in 500 people, causing elevated LDL-cholesterol from birth.
Purpose of the Study:
- To highlight the importance of early FH diagnosis through clinical suspicion and family history.
- To discuss current treatment guidelines recommending significant LDL-C reduction.
- To evaluate the efficacy of combination therapy for FH management.
Main Methods:
- Clinical diagnosis based on family history and physical findings (e.g., xanthomas).
- Review of current treatment guidelines for LDL-cholesterol lowering.
- Assessment of lipid-lowering therapies, including statins and ezetimibe.
Main Results:
- Statins are the primary choice for lowering LDL-C due to safety and efficacy.
- Many FH patients do not achieve ideal LDL-C levels with statin monotherapy.
- Combination therapy with ezetimibe shows promising results in further reducing LDL-C.
Conclusions:
- Early clinical suspicion is crucial for diagnosing FH.
- Achieving target LDL-C levels often requires more than monotherapy.
- Ezetimibe in combination therapy represents an effective strategy for managing FH.
Abstract:
Familial hypercholesterolemia (FH) is associated with premature atherosclerotic cardiovascular diseases, and is inherited as an autosomal dominant trait. The prevalence of heterozygous FH is one in five hundred people. Owing to dysfunctional low density lipoprotein (LDL) receptors due to genetic mutations, serum low density lipoprotein-cholesterol (LDL-C) levels are considerably increased from birth. FH is clinically diagnosed by confirmation of family history and characteristic findings such as tendon xanthoma or xanthelasma. Thus, clinical concern and suspicion are important for early diagnosis of the disease. Current guidelines recommend lowering LDL-C concentration to at least 50% from baseline. Statins are shown to lower LDL-C levels with high safety, and thus, have been the drug of choice. However, it is difficult to achieve an ideal level of LDL-C with a single statin therapy in the majority of FH patients. Alternatively, lipid lowering combination therapy with the recently-introduced ezetimibe has shown more encouraging results.
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