Jahir Rodríguez-Morales, Sebastián Guartazaca-Guerrero, Salma A Rizo-Téllez, Rebeca Viurcos-Sanabria, Eira Valeria Barrón, Aldo F Hernández-Valencia, Porfirio Nava, Galileo Escobedo, José Damián Carrillo-Ruiz, Lucía A Méndez-García
Transsynaptic transport is the most accepted proposal to explain the SARS-CoV-2 infection of the CNS. Nevertheless, emerging evidence shows that neurons do not express the SARS-CoV-2 receptor ACE2, which highlights the importance of the blood-brain barrier (BBB) in preventing virus entry to the brain. In this study, we examine the presence of SARS-CoV-2 messenger ribonucleic acid (mRNA) and the cytokine profile in cerebrospinal fluids (CSF) from two patients with a brain tumor and COVID-19. To determine the BBB damage, we evaluate the Q- albumin index, which is an indirect parameter to assess the permeability of this structure...
August 31, 2022: Experimental Neurobiology