Publications by authors named "D J Pelaez Mata"

A mixed phenotype is characteristic of de novo Mixed Phenotype Acute Leukemia (MPAL) but can also be seen in other leukemias. It poses substantial classification and management dilemmas. Herein, we report a large cohort of acute leukemia with a mixed phenotype and define Acute Myeloid Leukemia with Mixed Phenotype (AML-MP) and MPAL as two distinct groups by characterizing the clinical, genetic, and transcriptomic features.

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Novel psychoactive substances (NPS) have historically been difficult compounds to analyze in forensic toxicology. The identification, detection and quantitation of these analytes and their metabolites has been difficult due to their rapid emergence, short life span and various potencies. Advancements in analytical instrumentation are fundamental to mitigating these NPS challenges by providing reliable identification and sensitivity.

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Article Synopsis
  • * It emphasizes the issue of postmortem redistribution and identifies significant differences in central/peripheral blood ratios from epidemic and pre-epidemic years, as well as cases with documented fentanyl use versus those without.
  • * Despite evaluating various factors like age and polydrug use, the study concludes that the reason behind increased central/peripheral ratios remains unclear, but hints at a possible connection to rising illicit fentanyl use.
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This study is aimed at investigating the 10-year outcomes of intraoperative radiotherapy (IORT) in Mexican women with early breast cancer (EBC) treated at the Centro Medico ABC, Mexico City. A cohort study included women with early-stage invasive ductal carcinoma aged ≥ 45 years without prior oncologic treatment, tumor size ≤ 3.5 cm, cN0M0, positive hormone receptors, margins ≥ 2 mm, negative sentinel lymph nodes, and no extensive lymphovascular invasion.

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Microsatellite instability high (MSI-H) and mismatch repair deficient (dMMR) tumor status have been demonstrated to predict patient response to immunotherapies. We developed and validated a next-generation sequencing (NGS)-based companion diagnostic (CDx) to detect MSI-H solid tumors via a comprehensive genomic profiling (CGP) assay, FoundationOne®CDx (F1CDx). To determine MSI status, F1CDx calculates the fraction of unstable microsatellite loci across >2000 loci using a fraction-based (FB) analysis.

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