RT Journal Article T1 Pulsed magnetic feld increases the efect of ultraviolet C radiation and thermal shock in aged yeasts A1 Mercado-Sáenz, Silvia A1 González-Vidal, Alejandro A1 Burgos-Molina, Antonio Manuel A1 López-Díaz, Beatriz A1 Sendra-Portero, Francisco A1 Ruiz-Gómez, Miguel José K1 Magnetismo terrestre K1 Células-Envejecimiento K1 Levaduras-Fisiología AB The study of the efects of the magnetic feld (MF) on living matter continues to be a dilemma. Until now, the interaction mechanisms of MF with living matter that explain the observed phenomena are unknown. Despite the existing literature and the multiple efects described to date, there are few published articles that study the combined efect of MF with other physical agents during the cellular aging process. In this sense, the aim of this work is to study whether low frequency and intensity pulsed and sinusoidal MF exposure produce alterations in the cell killing efect of ultraviolet C (UVC) radiation and thermal shock during the chronological aging of S. cerevisiae. Yeast cells were exposed to 2.45 mT (50 Hz) sinusoidal MF and 1.5 mT (25 Hz) pulsed MF, during 40 days of aging, in combination with UVC radiation (50 J/m2) and/or thermal shock (52°C). Cell survival was evaluated by clonogenic assay. The exposure of yeast to pulsed MF produces an acceleration of aging, which is not observed in cells exposed to sinusoidal MF. The pulsed MF modifes the cellular response to damaging agents only in aged S. cerevisiae cells. In this sense, the pulsed MF applied increases the damage induced by UVC radiation and by thermal shock. In contrast, the sinusoidal MF used has no efect. PB Springer YR 2023 FD 2023 LK https://hdl.handle.net/10630/26350 UL https://hdl.handle.net/10630/26350 LA eng NO Mercado-Sáenz, S., González-Vidal, A., Burgos-Molina, A.M. et al. Pulsed magnetic field increases the effect of ultraviolet C radiation and thermal shock in aged yeasts. Int Microbiol (2023). https://doi.org/10.1007/s10123-023-00352-2 NO Funding for open access publishing: Universidad de Málaga/CBUA. This study was supported by the “Plan Andaluz de Investi gación, Desarrollo e Innovación (PAIDI); Junta de Andalucía”, code CTS-181. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026