Ethnicity Influences Telomere Length and Metabolic Marker Correlations in Kuwait
Overview
This study of 2083 individuals in Kuwait reveals significant ethnic differences in telomere length and its association with metabolic indicators. South Asian and Southeast Asian participants exhibited longer telomeres than Arabs, with stronger negative correlations between telomere length and diabetes-related markers in South Asians.
Background
Telomeres protect chromosome ends and shorten with cellular aging, influenced by genetics, lifestyle, and environment. Shortened telomeres have been linked to metabolic diseases including diabetes, with associations modulated by factors such as age, BMI, and sex. Ethnic variability in telomere length and its relationship to metabolic health remains underexplored, especially in Middle Eastern populations. This study investigates these relationships in a multiethnic Kuwaiti cohort comprising Arabs, South Asians, and Southeast Asians.
Data Highlights
Ethnicity
Median Telomere Length
Significant Correlations
Arabs
Shortest
Weaker negative correlations with triglycerides, HbA1c, FBG, insulin, HOMA-IR
South Asians
Longest
Strong negative correlations with triglycerides, HbA1c, FBG, insulin, HOMA-IR
Southeast Asians
Longer than Arabs, shorter than South Asians
Intermediate correlations
Key Findings
South Asian and Southeast Asian participants had significantly longer median telomere lengths than Arabs.
Telomere length negatively correlated with male sex, diabetes status, age, BMI, HbA1c, and HOMA-IR scores.
Negative correlations between telomere length and metabolic markers (triglycerides, HbA1c, fasting blood glucose, insulin, HOMA-IR) were strongest in South Asians.
Ethnicity significantly influences the relationship between telomere length and metabolic health indicators.
Incorporating ethnic background is essential when using telomere length as a biomarker for diabetes risk assessment.
Clinical Implications
Clinicians should consider ethnic background when interpreting telomere length as a biomarker for metabolic disease risk, particularly diabetes. The stronger associations observed in South Asians suggest that telomere length measurement may enhance risk stratification in this group. Integrating telomere length with traditional metabolic markers could improve early identification and management of diabetes.
Conclusion
This study highlights ethnicity as a key modifier of the relationship between telomere length and metabolic health, underscoring the potential of telomere length as a complementary biomarker for diabetes risk tailored to ethnic context.
References
Dasman Diabetes Institute/Kuwait Diabetes Epidemiological Program -- Study on Telomere Length and Metabolic Indicators in Kuwait
