Analyzing the Interplay between COVID-19 Viral Load, Inflammatory Markers, and Lymphocyte Subpopulations on the Development of Long COVID.

The global impact of the SARS-CoV-2 infection has been substantial, affecting millions of people. Long COVID, characterized by persistent or recurrent symptoms after acute infection, has been reported in over 40% of patients. Risk factors include age and female gender, and various mechanisms, including chronic inflammation and viral persistence, have been implicated in long COVID's pathogenesis.

Viral load and its relationship with the inflammatory response and clinical outcomes in hospitalization of patients with COVID-19.

Background: The values of viral load in COVID-19 disease have gained relevance, seeking to understand its prognostic value and its behavior in the course of the disease, although there have been no conclusive results. In this study we sought to analyze serum viral load as a predictor of clinical outcome of the disease, as well as its association with inflammatory markers.

Methods: An observational and retrospective study in a private hospital in North Mexico, patients with SARS-COV-2 infection confirmed by reverse transcriptase polymerase chain reaction (RT-PCR) were followed through clinical outcome, viral load measurement, quantification of inflammatory markers and lymphocyte subpopulations.

[Hematologic and molecular response with dasatinib as second-line treatment in chronic myeloid leukemia (CML) with treatment failure].

Background: Chronic myeloid leukemia is a myeloproliferative disease characterized by the Philadelphia chromosome and with this, the chimeric protein BCR-ABL. The first-line treatment is imatinib, a tyrosine kinase inhibitor, that has showed good results, but with a significant percentage of treatment failure. This failure has led to second-generation tyrosine kinase inhibitors as second-line treatment such as dasatinib.