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Telomere length and signal joint T-cell receptor rearrangement excision circles as biomarkers for chronological age estimation

Biomarkers • 2021
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Publication Information
Authors Mostafa Ali Elmadawy , Omnia A. Abdullah , Walaa Bayoumie El Gazzar , Enas Sebaey Ahmad , Seham Gouda Ameen & Afaf Abdelkader
Keywords Chronological age; telomere length; sjTRECs; quantitative real-time PCR; southern blotting
Journal Biomarkers
Publisher Taylor & Francis
Volume 26
Issue 2
Pages Not Available
publication.type International
Paper Link Open Link
Supplementary Materials Not Available
Abstract
Background: Chronological age estimation is a challenging marker in the field of forensic medicine.
The current study aimed to investigate the accuracy of signal joint T-cell receptor rearrangement excision
circles (sjTRECs) quantification and telomere length measurement as methods for estimating
chronological age.
Methods: Telomere length was estimated in the DNA derived from the buccal cells through estimating
the telomeric restriction fragment (TRF) length using TeloTTAGGG Telomere Length Assay while
the sjTRECs quantification was carried out on DNA isolated from the blood samples using qPCR.
Results: The TRF length was shortened with increased age (r ¼ 0.722, p