Correlation Between Telomere Length and Biomarkers of Oxidative Stress in Human Aging

The telomere length (TL) has increasingly been used as a biomarker of human aging because it has been shown to predict the chances of survival and longevity. Oxidative stress is presumed to be a major cause of telomere shortening, but the importance of oxidative stress as a determinant of telomere shortening remains less clear and has recently been questioned. We analyzed 105 healthy subjects of both sexes between the ages of 20-77 years. The TL and biomarkers of oxidative stress were estimated as per standard protocols. A significant (p < 0.001) age-dependent decline in TL was observed. TL was positively correlated with the ferric reducing ability of plasma value (r = 0.8811) and reduced glutathione (r = 0.8209), whereas negatively correlated with malondialdehyde (r = -0.7191). Our findings supported the idea of a possible correlation between the TL and biomarkers of oxidative stress in aging. The study has remarkable scope in medical science as the findings on correlation of TL with biomarkers of oxidative stress in aging are novel and they will help in further research against oxidative stress.