Association between phenotypic familial hypercholesterolaemia and telomere length in US adults: results from a multi-ethnic survey
Journal article, 2018

Aims: Familial hypercholesterolaemia (FH) accelerates atherosclerotic cardiovascular disease (ASCVD) and accordingly is the most potent hereditary cause of premature coronary heart disease. The association between telomere length (TL), a biological index of ageing, and FH has not been hitherto investigated. We addressed this question using data from the US National Health and Education National Surveys (NHANES, 1999-2002).Methods and results: We included individuals, who had TL measurements (with quantitative polymerase chain reaction method) and a phenotypic diagnosis of FH based on the Dutch Lipid Clinic Network (DLCN) criteria. Sample weights were applied for unequal probabilities of selection, non-response bias, and oversampling by complex sample analysis. The adult prevalence of FH in NHANES was 0.43% [95% confidence interval (95% CI) 0.33-0.57]. The frequencies of probable FH (mean DLCN score: 6.2) and definite FH (mean DLCN score: 8.9) were 0.42% (95% CI 0.32-0.48) and 0.03% (95% CI 0.02-0.06), respectively. Subjects with FH had a higher prevalence of non-communicable diseases (hypertension, diabetes 2 type, and obesity) and early atherosclerosis (2.9% in overall population vs. 42.2% in FH). Overall, the mean TL in the non-FH population was 1.09 (95% CI 1.06-1.12) (T/S ratio) and 1.09 (95% CI 1.03-1.12) [(T/S ratio) for total FH]. Telomere length adjusted for age, sex, race, and body mass index was shorter in FH compared with healthy subjects (FH 0.89, 95% CI 0.84-0.93 vs. healthy: 1.05, 95% CI 0.97-1.11 T/S ratio; P < 0.001). Subjects with longer TL (highest quartile) had 12% less chance of having FH compared with those with TL in the lowest quartile (Q1, 95% CI 0.78-0.93).Conclusions: These preliminary data suggest an association between TL, an index of biological age, and the presence of FH, the most common inherited cause of premature ASCVD. Given our relatively low sample size, the findings need confirmation in larger studies.

Author

Maciej Banach

Medical University of Lodz

University of Zielona Góra

Polish Mother’s Memorial Hospital Research Institute

Mohsen Mazidi

Chalmers, Biology and Biological Engineering, Food and Nutrition Science

Dimitri P. Mikhailidis

UCL Medical School

Peter P. Toth

CGH Medical Center

Johns Hopkins University

Jacek Jozwiak

Uniwersytet Opolski

Jacek Rysz

Medical University of Lodz

Gerald F. Watts

University of Western Australia

European Heart Journal

0195-668X (ISSN) 1522-9645 (eISSN)

Vol. 39 40 3635-3640

Subject Categories

Geriatrics

Endocrinology and Diabetes

General Practice

DOI

10.1093/eurheartj/ehy527

PubMed

30165413

More information

Latest update

11/1/2018