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Influences of chronic copper exposure on intestinal histology, antioxidative and immune status, and transcriptomic response in freshwater grouper (Acrossocheilus fasciatus).
Wang, Lei; Wang, Bin; Hu, Cong; Wang, Chenyang; Gao, Chang; Jiang, He; Yan, Yunzhi.
Afiliação
  • Wang L; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China; Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, Anhui Normal University, Wuhu, 241002, China; Provincial Key
  • Wang B; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China.
  • Hu C; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China.
  • Wang C; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China.
  • Gao C; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China.
  • Jiang H; Fisheries Research Institution, Anhui Academy of Agricultural Sciences, Hefei, China. Electronic address: hfjianghe@sina.cn.
  • Yan Y; School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China; Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, Anhui Normal University, Wuhu, 241002, China; Provincial Key
Fish Shellfish Immunol ; 139: 108861, 2023 Aug.
Article em En | MEDLINE | ID: mdl-37257568
Copper (Cu) contamination is commonly found in both natural water environments and fish farms, and it can cause severe damage to different fish organs, but Cu-induced intestinal damage has been rarely studied. This study subjected three groups of freshwater grouper (Acrossocheilus fasciatus) (initial weight: 1.56 ± 0.10 g) to 0 mg/L, 0.01 mg/L, and 0.04 mg/L Cu2+ for 30 days, named Con, Cu0.01, and Cu0.04 groups, respectively. The histological observation indicated that the Cu0.04 group caused a significant decrease in villus length, lamina propria width, and muscular thickness compared to the Con group (P < 0.05). Additionally, the Cu0.04 group significantly increased intestinal superoxide dismutase (SOD), glutathione peroxidase (GPx), lysozyme (LZM) activities, as well as malondialdehyde (MDA) content than the Con group (P < 0.05). Meanwhile, the Cu0.01 and Cu0.04 groups showed significantly increased immunoglobulin M (IgM), complement 3 (C3), and glutathione (GSH) contents than the Con group (P < 0.05). Transcriptomic analysis revealed a total of 101 differentially expressed genes (DEGs), including 47 up-regulated and 54 down-regulated DEGs, were identified between the Cu0.04 and Con groups. Notably, the DEGs were mainly related to intestinal structure construction, immune functions, apoptosis, and resistance to DNA damage and pathogen infection. The findings suggest that chronic Cu exposure caused intestinal histological alterations, activated the antioxidative and immune systems, and induced systematic adaptation to cope with the physical barrier injury, DNA damage, and potential pathogen growth.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bass / Cyprinidae Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bass / Cyprinidae Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2023 Tipo de documento: Article