RT Journal Article T1 Neuroendocrine pathways at risk? Simvastatin induces inter and transgenerational disruption in the keystone amphipod Gammarus locusta A1 Neuparth, Teresa A1 Alves, Nélson A1 Machado, Andrade M. A1 Pinheiro, Marlene A1 Montes Goyanes, Rosa A1 Rodil Rodríguez, María del Rosario A1 Barros, Susana A1 Ruivo, Raquel A1 Castro, Luis Filipe A1 Quintana Álvarez, José Benito A1 Santos, Miguel Machado K1 Simvastatin K1 Gammarus locusta K1 Neuroendocrine signaling pathways K1 Transcriptomic K1 Inter and transgenerational effects K1 Regulatory agencies AB The primary focus of environmental toxicological studies is to address the direct effects of chemicals on exposed organisms (parental generation – F0), mostly overlooking effects on subsequent non-exposed generations (F1 and F2 – intergenerational and F3 transgenerational, respectively). Here, we addressed the effects of simvastatin (SIM), one of the most widely prescribed human pharmaceuticals for the primary treatment of hypercholesterolemia, using the keystone crustacean Gammarus locusta. We demonstrate that SIM, at environmentally relevant concentrations, has significant inter and transgenerational (F1 and F3) effects in key signaling pathways involved in crustaceans’ neuroendocrine regulation (Ecdysteroids, Catecholamines, NO/cGMP/PKG, GABAergic and Cholinergic signaling pathways), concomitantly with changes in apical endpoints, such as depressed reproduction and growth. These findings are an essential step to improve hazard and risk assessment of biological active compounds, such as SIM, and highlight the importance of studying the transgenerational effects of environmental chemicals in animals’ neuroendocrine regulation PB Elsevier SN 0166-445X YR 2022 FD 2022 LK http://hdl.handle.net/10347/29220 UL http://hdl.handle.net/10347/29220 LA eng NO T. Neuparth et al. Aquatic Toxicology, 2022, 244, 106095 NO This work was financially supported by: i) Transobesogen Project – “Trans-phyletic obesogenic responses: from epigenetic modules to transgenerational environmental impacts” reference: PTDC/CTA-AMB/31544/2017 – NORTE-01–0145-FEDER-031544, co-financed by the Portuguese Foundation for Science and Technology (FCT), North Regional Operational Program (NORTE 2020) and the European Regional Development Fund (FEDER). ii) Nor-Water Project – “Poluentes emergentes nas águas da Galiza-Norte de Portugal: novas ferramentas para gestão de risco” reference: 0725_NOR_WATER_1_P financed by INTERREG VA Spain-Portugal cooperation program, Cross-Border North Portugal/Galizia Spain Cooperation Program (POCTEP) 2014–2020. iii) the National Funds through FCT under the projects (UIDB/04423/2020; UIDP/04423/2020). Nélson Alves acknowledges FCT for his Ph.D. grant DFA/BD/6218/2020. Andre M Machado acknowledges FCT for his Ph.D. grant DFA/BD/8069/2020. Marlene Pinheiro acknowledges FCT for her Ph.D. grant SFRH/BD/147834/2019. Susana Barros acknowledges FCT for her Ph.D. grant PD/BD/143090/2018. Financial support by Xunta de Galicia (ED431C2021/06) and the Spanish Agencia Estatal de Investigación - AEI (PID2020–117686RB-C32) is also gratefully acknowledged. DS Minerva RD 24 abr 2026