Genetic Study of Familial Hypercholesterolemia in Latvian Patients
Author Information
Author(s): Atava Ivanna, Briviba Monta, Nesterovics Georgijs, Saripo Vita, Gilis Dainus, Meiere Ruta, Terauda Elizabete, Skudrina Gunda, Klovins Janis, Latkovskis Gustavs, Ciccodicola Alfredo
Primary Institution: Latvian Biomedical Research and Study Centre
Hypothesis
Can a combined monogenic and polygenic approach using whole-genome sequencing improve the genetic characterization of familial hypercholesterolemia in Latvian patients?
Conclusion
The study identified unique genetic variants in 23.6% of patients and explained 43.7% of hypercholesterolemia cases through combined genetic analysis.
Supporting Evidence
- 80 unique pathogenic variants were identified in 23.6% of patients.
- The LDL-C polygenic risk score was highly discriminative compared to the LPA score.
- 43.7% of hypercholesterolemia cases were genetically explained through combined analysis.
- Six novel genetic variants were identified in the study.
- Patients without monogenic variants had similar LDL-C levels to those with monogenic forms.
Takeaway
This study looked at people in Latvia with high cholesterol to find out what genes might be causing it, and they found some new clues that help explain why some people have this problem.
Methodology
Whole-genome sequencing was performed on 339 patients with familial hypercholesterolemia and 515 controls, analyzing genetic variants and calculating polygenic risk scores.
Potential Biases
Selection bias may have occurred as the study included only severely hypercholesterolemic patients referred to a specialized clinic.
Limitations
The study focused on a predominantly Caucasian population, which may limit the generalizability of the findings to other ethnic groups.
Participant Demographics
The cohort included 132 males (38.9%) with a mean age of 51.5 years, and a control group of 515 individuals with a mean age of 40.0 years.
Statistical Information
P-Value
0.030
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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