Poor reliability and reproducibility of PCR-based testing of O6-methylguanine-DNA methyltransferase gene (MGMT) promoter methylation status in formalin-fixed and paraffin-embedded neurosurgical biopsy specimens

Abstract excerpt

OBJECTIVE: To analyze the reliability and reproducibility of PCR-based testing of O6-methylguanine-DNA methyltransferase gene (MGMT) promoter methylation status in formalin-fixed and paraffin-embedded (FFPE) neurosurgical biopsy specimens. MATERIALS: We used 6 FFPE neurosurgical temporal lobe specimens of children and young adults with drug-resistant epilepsy. Histopathologically, all specimens showed CNS tissue...

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