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Zhao H, Ma H, Song C, Fan S, Fan H, Zhou W, Cao J. Prevalence and molecular characterization of multi-resistant Escherichia coli isolates from clinical bovine mastitis in China. Anim Biotechnol 2024; 35:2322541. [PMID: 38478400 DOI: 10.1080/10495398.2024.2322541] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Different antibiotics are used to treat mastitis in dairy cows that is caused by Escherichia coli (E. coli). Antimicrobial resistance in food-producing animals in China has been monitored since 2000. Surveillance data have shown that the prevalence of multiresistant E. coli in animals has increased significantly. This study aimed to investigate the occurrence and molecular characteristics of resistance determinants in E. coli strains (n = 105) obtained from lactating cows with clinical bovine mastitis (CBM) in China. A total of 220 cows with clinical mastitis, which has swollen mammary udder with reduced and red or gangrenous milk, were selected from 5000 cows. The results showed 94.3% of the isolates were recognized as multidrug resistant. The isolates (30.5%) were positive for the class I integrase gene along with seven gene cassettes that were accountable for resistance to trimethoprim resistance (dfrA17, dfr2d and dfrA1), aminoglycosides resistance (aadA1 and aadA5) and chloramphenicol resistance (catB3 and catB2), respectively. The blaTEM gene was present in all the isolates, and these carried the blaCTX gene. A double mutation in gyrA (i.e., Ser83Leu and Asp87Asn) was observed in all fluoroquinolone-resistant isolates. In total, nine fluoroquinolone-resistant E. coli isolates were identified with five different types of mutations in parC. In four (44.4%) isolates, Ser458Ala was present in parE, and in all nine (9/9) fluoroquinolone-resistant isolates, Pro385Ala was present in gyrB. Meanwhile, fluoroquinolone was observed as highly resistant, especially in isolates with gyrA and parC mutations. In summary, the findings of this research recognize the fluoroquinolone resistance mechanism and disclose integron prevalence and ESBLs in E. coli isolates from lactating cattle with CBM.
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Affiliation(s)
- Hongxia Zhao
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, PR China
| | - Hailan Ma
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, PR China
| | - Chen Song
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, PR China
| | - Shuting Fan
- Middle East College of Beijing International Studies University, Beijing, PR China
| | - Hongliang Fan
- Inner Mongolia Yili Industrial Group Co. Ltd., Huhhot, PR China
| | - Weiguang Zhou
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, PR China
| | - Jinshan Cao
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, PR China
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Xi F. The enrofloxacin pollution control from fish to environment. Mar Pollut Bull 2024; 199:115923. [PMID: 38145585 DOI: 10.1016/j.marpolbul.2023.115923] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 12/03/2023] [Accepted: 12/10/2023] [Indexed: 12/27/2023]
Abstract
Enrofloxacin (ENR) is used to prevent and treat fish diseases widely. However, its pollution is increasing public concern on human health and aquatic ecosystem safety. This review aims to find its pollution mechanisms and control way. It is found: (1) The excessive ENR administration is the main source, the sediment ENR escaping from photolysis is the secondary ENR pollution source; (2) The ENR-rich fishes were benthic lipid-rich fishes which can simultaneously absorb administration ENR and sediment ENR, the ENR bioaccumulation is positively related to the fish habitats ENR level and fish lipids content; (3) The ENR t1/2 varies with fish age, body weight, feedstuff lipids and crude fiber level, temperature, salinity, administration mode and dose; Consequently, the first control way is to conduct the minimum inhibitory concentration ENR, combining herbal medicines with antibacterial and detoxification functions. The second way is to develop the enrichment and removal techniques for sediment ENR.
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Affiliation(s)
- Feng Xi
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Centre of Eel Modern Industrial Technology, Ministry of Education, Fisheries College, Jimei University, Xiamen 361021, China.
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Jia B, Zhao Y, Deng J, Chen S, Li C, Qi B, Hu X, Li L. Enrofloxacin pharmacokinetics in yellow catfish (Pelteobagrus fulvidraco): A comparative analysis of oral, intramuscular, and bath administration. J Vet Pharmacol Ther 2024. [PMID: 38189474 DOI: 10.1111/jvp.13425] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/09/2024]
Abstract
Enrofloxacin (ENR) residues in yellow catfish (Pelteobagrus fulvidraco) often exceed the standard due to excessive use. This study explored the pharmacokinetics of ENR and its metabolite ciprofloxacin (CIP) in yellow catfish following a single dose of 10 mg/kg body weight via intramuscular injection (IM), oral gavage (PO), or a 5-h drug bath at 10 mg/L and 25°C. High-performance liquid chromatography-mass spectrometry was used to determine the ENR and CIP concentrations in various tissues. The highest ENR concentration occurred with IM administration, peaking at 4.124 mg/L in the plasma, 8.359 mg/kg in the kidney, 6.272 mg/kg in the liver, and 5.192 mg/kg in the muscle. However, PO administration resulted in the longest metabolic time, with elimination half-lives of 56.47 h in plasma, 86.43 h in the kidney, 76.25 h in the liver, and 64.75 h in muscle. Additionally, the area under the concentration-time curve values for IM, PO, and bath administration in yellow catfish plasma were 108.36, 88.96, and 22.08 mg·h/L, respectively. These results indicate the effectiveness of all three administration methods in treating bacterial diseases in yellow catfish. The selection of an appropriate administration method depends on the minimal inhibitory concentration of ENR against pathogenic bacteria. Yellow catfish subjected to PO and IM administration require longer resting periods before they can be marketed than those receiving drug bath administration.
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Affiliation(s)
- Bofan Jia
- College of Food, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Yang Zhao
- College of Food, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Jianchao Deng
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Shengjun Chen
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Chunsheng Li
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Bo Qi
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Xiao Hu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
| | - Laihao Li
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National Aquatic Product Processing Technology R&D Center, South China Sea Fisheries Research Institute, China Academy of Fisheries Science, Guangzhou, China
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Li Z, Jin Y, Wang X, Xu L, Teng L, Fu K, Li B, Li Y, Huang Y, Ma N, Cui F, Chai T. Health Risk Assessment of Antibiotic Pollutants in Large Yellow Croakers from Zhejiang Aquaculture Sites. Foods 2023; 13:31. [PMID: 38201059 PMCID: PMC10778301 DOI: 10.3390/foods13010031] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/13/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Intensive aquaculture combatting the decline of large yellow croaker populations can trigger bacterial outbreaks, resulting in extensive antibiotic use. In this study, we screened 5 aquaculture sites in the coastal areas of Zhejiang and identified 17 antibiotics in large yellow croakers using UPLC-MS/MS. The distribution and occurrence of antibiotic pollutants were different in the different tissues of large yellow croakers, being primarily dominated by quinolones. Relatively higher average residue levels of enrofloxacin and ciprofloxacin were detected in the inedible parts, specifically the gills (37.29 μg/kg). Meanwhile, relatively high average residue levels of enrofloxacin and ciprofloxacin were also found in the edible parts, particularly in the muscle (23.18 μg/kg). We observed that the residue levels detected in the swim bladder exceeded the prescribed limit for fish muscle, but there is currently no specific regulatory limit established for this particular tissue. Despite the HI values of enrofloxacin and ciprofloxacin being below 0.01, the health risks should not be disregarded. The findings of this research provide significant practical implications for assessing antibiotic contamination and enhancing the risk management of coastal regions.
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Affiliation(s)
- Zongjie Li
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
| | - Yinyin Jin
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
| | - Xingyu Wang
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
| | - Liudong Xu
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
| | - Liyan Teng
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
| | - Kang Fu
- Collaborative Innovation Center of Green Pesticide, Zhejiang A & F University, Hangzhou 311300, China; (K.F.); (B.L.); (Y.L.); (F.C.)
| | - Baoling Li
- Collaborative Innovation Center of Green Pesticide, Zhejiang A & F University, Hangzhou 311300, China; (K.F.); (B.L.); (Y.L.); (F.C.)
| | - Yulu Li
- Collaborative Innovation Center of Green Pesticide, Zhejiang A & F University, Hangzhou 311300, China; (K.F.); (B.L.); (Y.L.); (F.C.)
| | - Ying Huang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing 100141, China; (Y.H.); (N.M.)
| | - Ning Ma
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing 100141, China; (Y.H.); (N.M.)
| | - Feng Cui
- Collaborative Innovation Center of Green Pesticide, Zhejiang A & F University, Hangzhou 311300, China; (K.F.); (B.L.); (Y.L.); (F.C.)
| | - Tingting Chai
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, China; (Z.L.); (Y.J.); (X.W.); (L.X.); (L.T.)
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Cao X, Xin S, Liu X, Wang S. Occurrence and behavior of per- and polyfluoroalkyl substances and conversion of oxidizable precursors in the waters of coastal tourist resorts in China. Environ Pollut 2023; 316:120460. [PMID: 36273687 DOI: 10.1016/j.envpol.2022.120460] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Per- and polyfluorolkyl substances (PFAS) were measured in the water and fish from 20 coastal tourist resorts in China, to investigate their sources, seasonal differences, and bioconcentration. An oxidative method with hydroxyl radicals was used to extract potential perfluoroalkyl acid (PFAA) precursors in the water of resorts. The results indicated that the total concentrations of target chemicals (i.e., ΣPFAS) in the original water were 59.4-138, 32.7-77.2, and 14.6-29.9 ng L-1 in December, April, and August, respectively. C4-C10 perfluorocarboxlate (PFCA) and perfluorooctane sulfonate (PFOS) accounted for 67%-92% of the ΣPFAS contents in all water samples. The PFAS concentrations in the muscles and liver of fish were 16.0-162 ng g-1 ww and 186-1240 ng g-1 ww, respectively. The dominant compounds were perfluorobutanoate acid (PFBA) and PFOS in the water, and perfluorooctanoic acid (PFOA) and PFOS in fish tissues. High bioconcentration were observed for PFCA (C ≥ 8) and perfluorosulfonate (PFSA, C ≥ 6). After oxidative conversion, the water exhibited a noticeable increase in the ΣPFAS value. Precursors that generated C4-C9 PFCA were more prevalent than precursors that generated other PFCA upon oxidation. The concentration of C8-based precursor was higher than that of C6-based precursor in wet and dry seasons. This study is the first to apply an oxidative method to investigate PFAS pollution in the water of coastal tourist resorts. The results verified that PFAA precursors exist in the water of coastal tourist resorts, and more attention should be given to the existence of PFAA precursors and the safety of water in coastal tourist resorts.
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Affiliation(s)
- Xuezhi Cao
- School of Geography and Tourism, Qufu Normal University, Rizhao, 276826, Shandong, China; School of History and Culture, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Shuhan Xin
- School of Life Science, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Xinxin Liu
- School of Life Science, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Shiliang Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, Shandong, China.
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