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Combined effects of polyethylene spiked with the antimicrobial triclosan on the swamp ghost crab (Ucides cordatus; Linnaeus, 1763)

Chemosphere 2022 21 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Beatriz Barbosa Moreno, Caio Rodrigues Nobre, Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Letícia Fernanda da Silva, Letícia Fernanda da Silva, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Denis Moledo de Souza Abessa Caio Rodrigues Nobre, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Beatriz Barbosa Moreno, Beatriz Barbosa Moreno, Beatriz Barbosa Moreno, Caio Rodrigues Nobre, Beatriz Barbosa Moreno, Caio Rodrigues Nobre, Rodrigo Brasil Choueri, Rodrigo Brasil Choueri, Rodrigo Brasil Choueri, Aline Vecchio Alves, Beatriz Barbosa Moreno, Aline Vecchio Alves, Caio Rodrigues Nobre, Beatriz Barbosa Moreno, Beatriz Barbosa Moreno, Aline Vecchio Alves, Aline Vecchio Alves, Camilo Dias Seabra Pereira, Camilo Dias Seabra Pereira, Mayana Karoline Fontes, Denis Moledo de Souza Abessa Jonas de Lima Rosa, Jonas de Lima Rosa, Jonas de Lima Rosa, Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Jonas de Lima Rosa, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Caio Rodrigues Nobre, Camilo Dias Seabra Pereira, Camilo Dias Seabra Pereira, Mayana Karoline Fontes, Bruno Galvão de Campos, Paloma Kachel Gusso‐Choueri, Letícia Fernanda da Silva, Beatriz Barbosa Moreno, Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Paloma Kachel Gusso‐Choueri, Rodrigo Brasil Choueri, Denis Moledo de Souza Abessa Rodrigo Brasil Choueri, Camilo Dias Seabra Pereira, Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Bruno Galvão de Campos, Caio Rodrigues Nobre, Letícia Fernanda da Silva, Beatriz Barbosa Moreno, Paloma Kachel Gusso‐Choueri, Letícia Fernanda da Silva, Denis Moledo de Souza Abessa Paloma Kachel Gusso‐Choueri, Luís Felipe de Almeida Duarte, Rodrigo Brasil Choueri, Beatriz Barbosa Moreno, Beatriz Barbosa Moreno, Beatriz Barbosa Moreno, Camilo Dias Seabra Pereira, Luís Felipe de Almeida Duarte, Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Denis Moledo de Souza Abessa Paloma Kachel Gusso‐Choueri, Camilo Dias Seabra Pereira, Caio Rodrigues Nobre, Rodrigo Brasil Choueri, Rodrigo Brasil Choueri, Denis Moledo de Souza Abessa Paloma Kachel Gusso‐Choueri, Mayana Karoline Fontes, Rodrigo Brasil Choueri, Paloma Kachel Gusso‐Choueri, Paloma Kachel Gusso‐Choueri, Paloma Kachel Gusso‐Choueri, Camilo Dias Seabra Pereira, Camilo Dias Seabra Pereira, Paloma Kachel Gusso‐Choueri, Denis Moledo de Souza Abessa Camilo Dias Seabra Pereira, Denis Moledo de Souza Abessa

Summary

Researchers examined combined effects of polyethylene microplastics spiked with triclosan on the swamp ghost crab, finding that the microplastic-triclosan combination caused greater oxidative stress and tissue damage in gills and hepatopancreas than either pollutant alone.

Polymers

Domestic sewage is an important source of pollutants in aquatic ecosystems and includes both microplastics (MPs) and pharmaceuticals and personal care products (PPCPs). This study sought to assess the biological effects of the interaction between plastic particles and the antibacterial agent triclosan (TCS). The study relied on the swamp ghost crab Ucides cordatus as a model. Herein polyethylene particles were contaminated with triclosan solution. Triclosan concentrations in the particles were then chemically analyzed. Swamp ghost crab specimens were exposed to experimental compounds (a control, microplastics, and microplastics with triclosan) for 7 days. Samplings were performed on days 3 (T3) and 7 (T7). Gill, hepatopancreas, muscle and hemolymph tissue samples were collected from the animals to evaluate the biomarkers ethoxyresorufin O-deethylase (EROD), dibenzylfluorescein dealkylase (DBF), glutathione S-transferase (GST), glutathione peroxidase (GPx), reduced glutathione (GSH), lipid peroxidation (LPO), DNA strands break (DNA damage), cholinesterase (ChE) through protein levels and neutral red retention time (NRRT). Water, organism, and microplastic samples were collected at the end of the assay for post-exposure chemical analyses. Triclosan was detected in the water and crab tissue samples, results which indicate that microplastics serve as triclosan carriers. Effects on the gills of organisms exposed to triclosan-spiked microplastics were observed as altered biomarker results (EROD, GST, GPx, GSH, LPO, DNA damage and NRRT). The effects were more closely associated with microplastic contaminated with triclosan exposure than with microplastic exposure, since animals exposed only to microplastics did not experience significant effects. Our results show that microplastics may be important carriers of substances of emerging interest in marine environments in that they contaminate environmental matrices and have adverse effects on organisms exposed to these stressors.

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