Tamoxifen induces biochemical responses in Pacific oysters Magallana gigas (Thunberg, 1793) at environmentally relevant concentrations

被引：0
|
作者：
Paiva, Raphaella [1 ]
Ferreira, Clarissa Pellegrini [2 ]
Lima, Daina [3 ]
Mattos, Jaco Joaquim [4 ]
Pessatti, Tomas Bohn [5 ]
Tisca, Juliana Fabricio [3 ]
Saldana-Serrano, Miguel [3 ]
Nogueira, Diego Jose [3 ]
Bebianno, Maria Joao [6 ]
Bainy, Afonso Celso Dias [3 ]
机构：
[1] Univ Fed Santa Catarina, Dept Sanit & Environm Engn, Lab Environm Toxicol, BR-88040970 Florianopolis, SC, Brazil
[2] Univ Minnesota, Dept Vet Populat Med, St Paul, MN 55108 USA
[3] Univ Fed Santa Catarina UFSC, Lab Biomarkers Aquat Contaminat & Immunochem, LABCAI, BR-88037000 Florianopolis, SC, Brazil
[4] Fed Univ Santa Catarina UFSC, Aquaculture Pathol Res Ctr, NEPAQ, BR-88034257 Florianopolis, SC, Brazil
[5] Swedish Univ Agr Sci, Dept Anim Biosci, SLU, S-75007 Uppsala, Sweden
[6] Univ Algarve, Ctr Marine & Environm Res, CIMA, ARNET Infrastruct Network Aquat Res, Campus Gambelas, P-8000139 Faro, Portugal
来源：
MARINE POLLUTION BULLETIN | 2024年 / 206卷
关键词：
Crassostrea gigas; Bivalve; Antioxidant defense; Emergent contaminant; Mariculture; INTEGRATED BIOMARKER RESPONSE; ANTICANCER DRUGS; DIGESTIVE GLAND; IN-VITRO; PHARMACEUTICALS; ACTIVATION; POLLUTION; VIVO;
D O I：
10.1016/j.marpolbul.2024.116696
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The activities of catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), glucose-6-phosphate dehydrogenase (G6PDH), and glutathione-S-transferase (GST) were evaluated in the gills (GI) and digestive gland (DG) of Magallana gigas oysters exposed to tamoxifen (TAM) at environmental concentrations of 10 and 100 ng L- 1 for 1 and 4 days. A higher CAT activity in the GI and DG and higher GPx activity only in the DG was observed of oysters exposed to both concentrations after 1 day. Furthermore, a significant increase in GR and G6PDH, was detected in the DG after 1 day of exposure to 10 ng L- 1 and only G6PDH activity increase after 1 day of exposure to 10 ng L- 1 in the GI. This suggests that the DG is a tissue more sensitive to TAM exposure and was confirmed with the individual Integrated Biomarker Response version 2 index (IBRv2i), highlighting the acute stress caused by TAM and a cellular adaptation.
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