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Updated: Jul 20, 2026

Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients
Published on: June 16, 2017
Progressive disease in chronic lymphocytic leukemia is correlated with the DNA methylation index
Margaret K Yu1, Hector Bergonia, Aniko Szabo
1School of Medicine, Division of Hematology, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA. margaret.yu@hci.utah.edu
Abstract:
The DNA methylation index (MI) is calculated as a percentage of methylated cytosines to cytosines. We established the DNA MI in 100 normal individuals ranging in age between 1 month and 94 years and found that the age-specific DNA MI can be calculated (4.00-0.0034 x age). We determined the DNA MI in 23 patients with CLL ranging from 47 to 90 years and compared the results with age-matched controls. Using Cox proportional hazard models for MI, adjusting for age and white blood cell count, only the DNA MI correlated with early clinical indications for systemic therapy (p=0.0038, HR=7.00, 95% CI: 1.90-26.20).
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