Ortiz Rodrigo, AlbaRíos, MaríaTobías, EsterNoguera Julian, AntoniGarcía García, Francesc JosepCantó Santos, JudithValls-Roca, LauraGarrabou Tornos, GlòriaGrau, Josep MariaCardellach, FrancescSánchez, EmiliaMorén Núñez, ConstanzaFortuny Guasch, Claudia2025-02-202025-02-202022-03-140003-9888https://hdl.handle.net/2445/219063Background: Ganciclovir/valganciclovir is currently indicated during the first 6 months of life in symptomatic children with congenital cytomegalovirus (CMV) infection. However, this treatment may have the potential to induce mitochondrial toxicity due to off-target inhibition of DNA-polymerases. Similar anti-HIV drugs have been associated with mitochondrial toxicity but this has never been explored in CMV. Objective: To determine the potential mitochondrial toxicity profile at the genetic, functional and biogenesis level in peripheral blood mononuclear cells from a cohort of newborns and infants with symptomatic congenital CMV infection (treated with valganciclovir, untreated and uninfected controls). Design: Longitudinal, observational and controlled study. Setting and patients: Subjects were recruited at the tertiary referral Hospital Sant Joan de Déu and experiments were conducted at IDIBAPS-Hospital Clínic of Barcelona, Spain. CMV-infected newborns underwent comprehensive monthly clinical follow-up. Methods: Mitochondrial parameters, audiometry and neurological assessment were measured at baseline, 3-6 and 12 months after inclusion in the study. The Kruskal-Wallis test for k-independent samples and Friedman tests for repeated measurements were applied. Results: Complex IV, citrate synthase enzymatic activities and mtDNA remained preserved in congenital CMV-infected infants treated with valganciclovir compared with controls (p>0.05 in all cases). Conclusions: No evidence of mitochondrial toxicity was found in infants treated with valganciclovir for congenital CMV.6 p.application/pdfengcc-by-nc (c) Ortiz-Gracia, A. et al., 2022http://creativecommons.org/licenses/by-nc/4.0/InfantsInfeccions per citomegalovirusMedicaments antivíricsChildrenCytomegalovirus infectionsAntiviral agentsinfo:eu-repo/semantics/article7227242025-02-20info:eu-repo/semantics/openAccess35288419