PMID- 37257268 OWN - NLM STAT- MEDLINE DCOM- 20231102 LR - 20231102 IS - 1872-7077 (Electronic) IS - 1382-6689 (Linking) VI - 100 DP - 2023 Jun TI - Exposure to 3,4-methylenedioxymethamphetamine (MDMA) induced biochemical but not behavioral effects in Daphnia magna. PG - 104163 LID - S1382-6689(23)00105-9 [pii] LID - 10.1016/j.etap.2023.104163 [doi] AB - Among amphetamine like stimulants (ATS), the 3,4-methylenedioxymethamphetamine (MDMA) is often detected in sewage and surface waters, representing a potential threat for organisms because of its peculiar mechanism of action (i.e., stimulatory and hallucinogenic). The present study aimed at investigating biochemical (i.e., oxidative stress and energetic biomarkers) and behavioral (i.e., swimming activity) effects induced by a 21-days exposure to two concentrations (50 ng/L and 500 ng/L) of MDMA towards Daphnia magna. The amount of reactive oxygen species (ROS), the activity of antioxidant (SOD, CAT, GPx) and detoxifying (GST) enzymes and lipid peroxidation were measured as oxidative stress-related endpoints. Total energy content was estimated from the measurement of protein, carbohydrate and lipid content to assess energy reserves. The modulation of swimming activity was assessed as behavioral endpoint. Slight effects of MDMA exposure on oxidative stress responses and energy reserves were observed, while no alterations of the swimming behavior was noted. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - De Felice, Beatrice AU - De Felice B AD - University of Milan, Department of Environmental Science and Policy, Via Celoria 26, I-20133 Milan, Italy. Electronic address: beatrice.defelice@unimi.it. FAU - Parolini, Marco AU - Parolini M AD - University of Milan, Department of Environmental Science and Policy, Via Celoria 26, I-20133 Milan, Italy. LA - eng PT - Journal Article DEP - 20230529 PL - Netherlands TA - Environ Toxicol Pharmacol JT - Environmental toxicology and pharmacology JID - 9612020 RN - 0 (Antioxidants) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - 0 (Reactive Oxygen Species) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Antioxidants/pharmacology MH - *Daphnia/physiology MH - *N-Methyl-3,4-methylenedioxyamphetamine/toxicity/metabolism MH - Oxidative Stress MH - Reactive Oxygen Species/metabolism MH - *Water Pollutants, Chemical/analysis/toxicity OTO - NOTNLM OT - Amphetamine like stimulants OT - Illicit drugs OT - Oxidative stress COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/06/01 01:08 MHDA- 2023/06/15 06:42 CRDT- 2023/05/31 18:02 PHST- 2023/02/28 00:00 [received] PHST- 2023/05/23 00:00 [revised] PHST- 2023/05/25 00:00 [accepted] PHST- 2023/06/15 06:42 [medline] PHST- 2023/06/01 01:08 [pubmed] PHST- 2023/05/31 18:02 [entrez] AID - S1382-6689(23)00105-9 [pii] AID - 10.1016/j.etap.2023.104163 [doi] PST - ppublish SO - Environ Toxicol Pharmacol. 2023 Jun;100:104163. doi: 10.1016/j.etap.2023.104163. Epub 2023 May 29.