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Updated: Nov 25, 2025

Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
Published on: May 22, 2013
The Relationship Between Vitamin D and Telomere/Telomerase: A Comprehensive Review
M Zarei1, M Zarezadeh, F Hamedi Kalajahi
1Mohammad Hassan Javanbakht, Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran,
Higher vitamin D levels are linked to longer telomere length, potentially slowing cellular aging and reducing risks of age-related diseases. This suggests vitamin D supplementation may support genomic stability and health.
Area of Science:
- Genetics and Molecular Biology
- Nutritional Science
- Gerontology
Background:
- Telomeres protect chromosome ends and maintain genomic stability.
- Telomere length is influenced by proteins, telomerase, and DNA replication.
- Micronutrients like vitamin D are increasingly implicated in telomere biology and aging.
Purpose of the Study:
- To investigate the relationship between vitamin D and telomere length.
- To explore vitamin D's potential role in telomere biology and genomic stability.
Main Methods:
- The study examined the association between vitamin D concentrations and telomere length.
- Follow-up assessments compared telomere length in vitamin D deficient versus sufficient patients.
Main Results:
- Higher vitamin D concentrations correlate with longer leukocyte telomere length (LTL).
- Vitamin D deficiency is associated with shorter telomeres.
- Vitamin D may counteract telomere shortening via anti-inflammatory and anti-proliferation effects.
Conclusions:
- Vitamin D sufficiency is linked to longer telomeres, suggesting benefits for aging and age-related diseases.
- Maintaining adequate vitamin D levels may help preserve telomere length and prevent cellular aging.
- Vitamin D's role in telomere maintenance warrants further investigation, particularly in conditions like SLE.
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