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Hyperlipidemia due to hepatic triacylglycerol lipase deficiency is a rare, genetic hyperalphalipoproteinemia characterized by elevated plasma cholesterol and triglyceride (TG) levels with a marked TG enrichment of low- and high-density lipoproteins (HDL), presence of circulating beta-very low density lipoproteins and elevated HDL cholesterol levels, in the presence of a very low, or undetectable, postheparin plasma hepatic lipase activity. Premature atherosclerosis and/or coronary heart disease may be associated.
Features include always present findings: Hypertriglyceridemia, Hypercholesterolemia, and Increased HDL cholesterol concentration; and common findings: Eruptive xanthomas, Corneal arcus, and Angina pectoris.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Digestive system | 1 | Increased HDL cholesterol concentration |
LIPC encodes lipase C, hepatic type (499 aa). Catalyzes the hydrolysis of triglycerides and phospholipids present in circulating plasma lipoproteins, including chylomicrons, intermediate density lipoproteins (IDL), low density lipoproteins (LDL) of large size and high density lipoproteins (HDL), releasing free fatty acids (FFA) and smaller lipoprotein particles. Highest expression in Liver (26.8 TPM) and Nerve Tibial (5.5 TPM).
Hyperlipidemia due to hepatic triglyceride lipase deficiency is associated with mutations in the LIPC gene on chromosome 15.
LIPC is classified as a druggable target (Druggable Genome, Enzyme, Lipase, and Phospholipase categories) with score 8.7.
Genetic testing for LIPC is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 3 always present features, 3 common features.
No clinical trials have been registered for hyperlipidemia due to hepatic triglyceride lipase deficiency.
7 publications have been identified in PubMed for hyperlipidemia due to hepatic triglyceride lipase deficiency. Research spans Basic Science / Preclinical (67%), Review / Meta-Analysis (17%), and Gene Therapy / Novel Therapeutics (17%).
Zhang X (2026). [PMID: 41787476](https://pubmed.ncbi.nlm.nih.gov/41787476/). *Lipids Health Dis*. [Gene Therapy / Novel Therapeutics]
Manojlovic M (2025). [PMID: 41343574](https://pubmed.ncbi.nlm.nih.gov/41343574/). *Biomol Biomed*. [Review / Meta-Analysis]
Sotin T (2025). [PMID: 40460236](https://pubmed.ncbi.nlm.nih.gov/40460236/). *Cardiovasc Res*. [Basic Science / Preclinical]
Gu Q (2025). [PMID: 39601316](https://pubmed.ncbi.nlm.nih.gov/39601316/). *FEBS Open Bio*. [Basic Science / Preclinical]
Wang Y (2025). [PMID: 40106311](https://pubmed.ncbi.nlm.nih.gov/40106311/). *Adv Sci (Weinh)*. [Basic Science / Preclinical]
Data assembled from 6 of 12 sources · Last updated Sep 20, 2026, 8:43 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Lab test results
1 |
Increased HDL cholesterol concentration |
Eyes | 1 | Corneal arcus |
Heart and blood vessels | 1 | Angina pectoris |
Chen Y (2025). [PMID: 40100923](https://pubmed.ncbi.nlm.nih.gov/40100923/). *J Clin Invest*. [Basic Science / Preclinical]