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Wu Y, Huang T, Wei Q, Yan X, Chen L, Ma Z, Luo L, Cao J, Chen H, Wei X, Tan H, Chen F, Tong G, Li L, Tang Z, Luo Y. Combined effects of copper and cadmium exposure on ovarian function and structure in Nile Tilapia (Oreochromis niloticus). Ecotoxicology 2024; 33:266-280. [PMID: 38436777 DOI: 10.1007/s10646-024-02744-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/19/2024] [Indexed: 03/05/2024]
Abstract
With the rapid development of industrialization and urbanization, the issue of copper (Cu) and cadmium (Cd) pollution in aquatic ecosystems has become increasingly severe, posing threats to the ovarian tissue and reproductive capacity of aquatic organisms. However, the combined effects of Cu and Cd on the ovarian development of fish and other aquatic species remain unclear. In this study, female Nile tilapia (Oreochromis niloticus) were individually or co-exposed to Cu and/or Cd in water. Ovarian and serum samples were collected at 15, 30, 60, 90, and 120 days, and the bioaccumulation, ovarian development, and hormone secretion were analyzed. Results showed that both single and combined exposure significantly reduced the gonadosomatic index and serum hormone levels, upregulated estrogen receptor (er) and progesterone receptor (pr) gene transcription levels, and markedly affected ovarian metabolite levels. Combined exposure led to more adverse effects than single exposure. The data demonstrate that the Cu and Cd exposure can impair ovarian function and structure, with more pronounced adverse effects under Cu and Cd co-exposure. The Cu and Cd affect the metabolic pathways of nucleotides and amino acids, leading to ovarian damage. This study highlights the importance of considering combined toxicant exposure in aquatic toxicology research and provides insights into the potential mechanisms underlying heavy metal-induced reproductive toxicity in fish.
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Affiliation(s)
- Yijie Wu
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
- College of Aquaculture and life sciences, Shanghai Ocean University, Shanghai, 201306, China
| | - Ting Huang
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Qiyu Wei
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Xin Yan
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Liting Chen
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Zhirui Ma
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Liming Luo
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
- College of Aquaculture and life sciences, Shanghai Ocean University, Shanghai, 201306, China
| | - Jinling Cao
- College of Food Science and Technology, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Hongxing Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Xinxian Wei
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Honglian Tan
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Fuyan Chen
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Guixiang Tong
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Liping Li
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Zhanyang Tang
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China
| | - Yongju Luo
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Science, Nanning, 530021, Guangxi, China.
- Key Laboratory of Comprehensive Development and Utilization of Aquatic Germplasm Resources of China (Guangxi) and ASEAN (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Nanning, 530021, China.
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