Comparison of Telomere Length Differences before and after Bariatric Surgery

Area of Science:

• Endocrinology and Metabolism
• Genetics and Molecular Biology

Background:

• Morbid obesity is a complex metabolic condition associated with increased health risks.
• Telomeres, protective caps on chromosomes, are linked to cellular aging and disease.
• Bariatric surgery is a common intervention for morbid obesity, but its long-term cellular effects require investigation.

Purpose of the Study:

• To determine if bariatric surgery impacts relative telomere length in patients with morbid obesity.
• To assess changes in telomere length one year after surgical intervention for obesity.

Main Methods:

• A descriptive cohort study involving 56 patients undergoing bariatric surgery for morbid obesity.
• Relative telomere length was measured using real-time polymerase chain reaction (2^-ΔΔCt method) from blood samples.
• Preoperative and one-year postoperative samples were compared using the Wilcoxon signed-rank test.

Main Results:

• No statistically significant difference was found in relative telomere length between preoperative and one-year postoperative measurements (p = 0.811).
• Amplification values for β-globin, TELO, and 36B4 did not show significant preoperative-to-postoperative changes.
• The study included patients aged 18-65 with a median BMI of 44.0 kg/m2.

Conclusions:

• Bariatric surgery is not associated with significant changes in relative telomere length at the one-year follow-up.
• Further research may explore longer-term effects or other cellular aging markers post-bariatric surgery.