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Chen J, Yang Z, Li W, Yang Y, Zhu F, Huo Z, Zhou Q. MXene-supported MIL-88A(Fe) as persulfate activator for removal of tetracycline. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:25273-25286. [PMID: 38467998 DOI: 10.1007/s11356-024-32677-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
The poor conductivity, poor stability, and agglomeration of iron-based metal organic framework MIL-88A(Fe) limit its application as persulfate (PS) activator in water purification. Herein, MXene-supported MIL-88A(Fe) composites (M88A/MX) were synthesized to enhance its adsorption and catalytic capability for tetracycline (TC) removal. Scanning electron microscope (SEM), X-ray diffractometer (XRD), Fourier transform infrared spectrometer (FT-IR), and X-ray photoelectron spectroscopy (XPS) were used to characterize prepared materials, confirming the successful attachment of MIL-88A(Fe) to the surface of MXene. M88A/MX-0.2 composites, prepared with 0.2 g MXene addition, exhibit optimal degradation efficiency, reaching 98% under conditions of 0.2 g/L M88A/MX-0.2, 1.0 mM PS, 20 ppm TC, and pH 5. The degradation rate constants of M88A/MX-0.2 were 0.03217 min-1, which was much higher than that of MIL-88A(Fe) (0.00159 min-1) and MXene (0.00626 min-1). The removal effects of reaction parameters, such as dosage of M88A/MX-0.2 and PS; initial solution pH; and the presence of the common co-existing constituents (humic acid and the inorganic anions) were investigated in detail. Additionally, the reuse of M88A/MX-0.2 showed that the composites had good cycling stability by recurrent experiments. The results of electron paramagnetic resonance (EPR) and quenching experiments indicated that ·OH, ·SO4-, and ·O2- were involved in the M88A/MX-0.2/PS system where persulfate oxidation process was activated with prepared M88A/MX-0.2. In addition, the intermediates of photocatalytic degradation were determined by HPLC-MS, and the possible degradation pathways of the target molecules were inferred. This study offered a new avenue for sulfate-based degradation of Fe-based metal organic framework.
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Affiliation(s)
- Junxia Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China
| | - Zhenzhen Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China
| | - Weigang Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China
| | - Yuying Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China
| | - Feng Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009, China
| | - Zongli Huo
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China.
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Mao H, Yang H, Xu Z, Peng Q, Yang S, Zhu L, Yang Y, Li Z. Responses of submerged macrophytes to different particle size microplastics and tetracycline co-pollutants at the community and population level. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:132994. [PMID: 37988943 DOI: 10.1016/j.jhazmat.2023.132994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023]
Abstract
Microplastics (MPs) and antibiotics are ubiquitous in aquatic ecosystems, and their accumulation and combined effects are considered emerging threats that may affect biodiversity and ecosystem function. The particle size of microplastics plays an important role in their combined effects with antibiotics. Submerged macrophytes are crucial in maintaining the health and stability of freshwater ecosystems. However, little is known about the combined effects of different particle size of MPs and antibiotics on freshwater plants, particularly their effects on submerged macrophyte communities. Thus, there is an urgent need to study their effects on the macrophyte communities to provide essential information for freshwater ecosystem management. In the present study, a mesocosm experiment was conducted to explore the effects of three particle sizes (5 µm, 50 µm, and 500 µm) of polystyrene-microplastics (PSMPs) (75 mg/L), tetracycline (TC) (50 mg/L), and their co-pollutants on interactions between Hydrilla verticillata and Elodea nuttallii. Our results showed that the effects of MPs are size-dependent on macrophytes at the community level rather than at the population level, and that small and medium sized MPs can promote the growth of the two test macrophytes at the community level. In addition, macrophytes at the community level have a stronger resistance to pollutant stress than those at the population level. Combined exposure to MPs and TC co-pollutants induces species-specific responses and antagonistic toxic effects on the physio-biochemical traits of submerged macrophytes. Our study provides evidence that MPs and co-pollutants not only affect the morphology and physiology at the population level but also the interactions between macrophytes. Thus, there are promising indications on the potential consequences of MPs and co-pollutants on macrophyte community structure, which suggests that future studies should focus on the effects of microplastics and their co-pollutants on aquatic macrophytes at the community level rather than only at the population level. This will improve our understanding of the profound effects of co-pollutants in aquatic environments on the structure and behavior of aquatic communities and ecosystems.
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Affiliation(s)
- Hongzhi Mao
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Hui Yang
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Zhiyan Xu
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Qiutong Peng
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Shiwen Yang
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Lin Zhu
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Yujing Yang
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China
| | - Zhongqiang Li
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan 430062, China.
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Chang X, Fu F, Sun Y, Zhao L, Li X, Li Y. Coupling multifactor dominated the biochemical response and the alterations of intestinal microflora of earthworm Pheretima guillelmi due to typical herbicides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:94126-94137. [PMID: 37526832 DOI: 10.1007/s11356-023-29032-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
The excessive application of herbicides on farmlands can substantially reduce labor costs and increase crop yields, but can also have undesirable effects on terrestrial ecosystems. To evaluate the ecological toxicity of herbicides, metolachlor and fomesafen, two typical herbicides that are extensively used worldwide were chosen as target pollutants, and the endogeic earthworm Pheretima guillelmi, which is widely distributed in China, was selected as the test organism. A laboratory-scale microcosmic experiment was set, and energy resources, enzymes, and the composition and connections of intestinal microorganisms in earthworms were determined. Both herbicides depleted the energy resources of the earthworms, especially glycogen contents; increased the levels of antioxidant enzymes; and inhibited acetylcholinesterase. Moreover, the richness and diversity of the intestinal bacterial community of the earthworms were suppressed. Additionally, the bacterial composition at the genus level changed greatly and the connections between dominant bacteria increased dramatically. Most interactions among the bacterial genera belonging to the same and different phyla showed mutualism and competition, respectively. Importantly, metolachlor with higher toxicity had a transitory effect on these indicators in earthworms, whereas fomesafen, with lower toxicity but stronger bioaccumulation potential, exerted a sustaining impact on earthworms. Collectively, these results indicate that the toxic effects of herbicides on terrestrial organisms should be comprehensively considered in combination with biological toxicity, persistence, bioaccumulation potential, and other factors.
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Affiliation(s)
- Xingping Chang
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Furong Fu
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Yang Sun
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China.
| | - Lixia Zhao
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Xiaojing Li
- Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin, 300191, China
| | - Yongtao Li
- College of Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
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Bej S, Swain S, Bishoyi AK, Mandhata CP, Sahoo CR, Padhy RN. Recent advancements on antibiotic bioremediation in wastewaters with a focus on algae: an overview. ENVIRONMENTAL TECHNOLOGY 2023:1-16. [PMID: 37545329 DOI: 10.1080/09593330.2023.2245166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Antibiotic contamination from hospitals, animal husbandry, and municipal wastewater is graver than imagined, and it possess serious risks to the health of humans and animals, with the emergence of multidrug resistant bacteria; those affect the growth of higher plants too. Conventional wastewater treatment methods adopted today are inadequate for removing antibiotics from wastewater. Intuitively, the remediation process using mixed algae should be effective enough, for which algae-based remediation technologies have emerged as sustainable remedial methods. This review summarized the detection of antibiotics in field water in most countries; a comprehensive overview of algae-based technologies, algal adsorption, accumulation, biodegradation, photodegradation, hydrolysis, and the use of algae-bacteria consortia for the remediation of antibiotics in wastewaters in done. Green algae namely, Chlamydomonas sp., Chlorella sp., C. vulgaris, Spyrogira sp. Scenedesmus quadricauda, S. obliquus, S. dimorphus, Haematoccus pluvialis, and Nannochlopsis sp., had been reporting have 90-100% antibiotic removal efficiency. The integration of bioelectrochemical systems and genetically engineered prokaryotic algal species offer promising avenues for improving antibiotic removal in the future. Overall, this review highlights the need for tenacious research and development of algae-based technologies to reduce antibiotic contamination in aquatic environments, for holistic good.
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Affiliation(s)
- Shuvasree Bej
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
| | - Surendra Swain
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
| | - Ajit Kumar Bishoyi
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
| | - Chinmayee Priyadarsani Mandhata
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
| | - Chita Ranjan Sahoo
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
| | - Rabindra Nath Padhy
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha O Anusandhan Deemed to be University, Odisha, India
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Lin Y, Yu J, Wang M, Wu L. Toxicity of single and combined 4-epianhydrotetracycline and cadmium at environmentally relevant concentrations on the zebrafish embryos (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120543. [PMID: 36341832 DOI: 10.1016/j.envpol.2022.120543] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/18/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
The combined pollution of antibiotics and heavy metals has attracted a worldwide attention in the recent years. 4-epianhydrotetracycline (EATC) is the major degradation product of tetracycline (TC), which has been detected frequently in environment and its concentration is even higher than TC under some circumstances. Cadmium (Cd) is a common heavy metal contaminant and has highly toxic to organisms, plants and humans even at low doses. In the present study, zebrafish (Danio rerio) embryo toxicity test was performed to investigate the single and combined effects of EATC and Cd on aquatic organisms. Exposure to EATC and Cd at environmentally relevant concentrations had a series of hazardous impacts on the embryonic development, including lethality, hatching rate, heart rate and teratogenic effects. Compared to the contaminant existed alone, combined pollution produced stronger toxicity, which appeared as the decreasing of heart rate and hatching rate, and the increasing of malformation of zebrafish embryos. After 96 h exposure, the reactive oxygen species (ROS) levels in zebrafish embryos were increased significantly, revealing that EATC-Cd co-exposure resulted in potential oxidative stress-induced damage. Acridine orange (AO) staining showed that combined exposure resulted in stronger cell apoptosis. The potential health risks of the combined pollution of EATC and Cd should be paid more attention to higher level vertebrates and humans.
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Affiliation(s)
- Yinxuan Lin
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
| | - Jiao Yu
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Meng Wang
- College of Biology and Environmental Science, Jishou University, Jishou, 416000, PR China
| | - Lingling Wu
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
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Nguyen TD, Itayama T, Ramaraj R, Iwami N, Shimizu K, Dao TS, Pham TL, Maseda H. Physiological response of Simocephalus vetulus to five antibiotics and their mixture under 48-h acute exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154585. [PMID: 35306083 DOI: 10.1016/j.scitotenv.2022.154585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 05/20/2023]
Abstract
Antibiotics, widely known as major environmental xenobiotics, are increasingly being released into ecosystems due to their essential functions in human health and production. During the COVID-19 pandemic waves, antibiotic use increases remarkably in treating bacterial coinfections. Antibiotics were initially expected only to affect prokaryotes, but recent research has shown that they can disturb the biological systems of eukaryotes, especially vulnerable aquatic creatures, through both direct and indirect processes. However, their toxicity to the freshwater cladoceran Simocephalus vetulus, an essential link in the aquatic food web, has never been evaluated. The effects of four fluoroquinolones (ciprofloxacin: CFX, ofloxacin: OFX, gatifloxacin: GFX, delafloxacin: DFX), tetracycline (TET), and a mixture of these medicines (MIX) on S. vetulus thoracic limb rate (TLR) were examined in this study. After S. vetulus was exposed to 20 and 40 mg GFX L-1, 90% and 100% mortality rates were recorded. At 2.5-10 mg L-1, GFX dramatically lowered the TLR of S. vetulus, resulting in a median effective concentration of 9.69 mg L-1. TLRs increased when the organisms were exposed to 10-40 mg L-1 of CFX and 1.25-40 mg L-1 of OFX. However, DFX and TET exposures did not affect TLRs. Exposure to MIX reduced TLR only at 40 mg L-1, suggesting an antagonistic interaction among the five pharmaceuticals. This study demonstrated that S. vetulus physiological responses to antibiotics, even in the same class, are complex and elusive. Beyond a common additive concentration principle, the antagonistic interaction of antibiotic mixture indicates a high level of uncertainty in terms of ecological dangers. We initially introduce S. vetulus to ecotoxicological studies of antibiotics, presenting the species as a low-cost model for physiological investigations of environmental xenobiotics.
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Affiliation(s)
- Tan-Duc Nguyen
- Graduate school of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Japan
| | - Tomoaki Itayama
- Graduate school of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Japan.
| | - Rameshprabu Ramaraj
- School of Renewable Energy, Maejo University, Sansai, Chiang Mai 50290, Thailand
| | - Norio Iwami
- School of Science and Engineering, Meise University, 2-1-1 Hodokubo, Hino-shi, Tokyo 191-8506, Japan
| | - Kazuya Shimizu
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-shi, Ibaraki, Japan
| | - Thanh-Son Dao
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Viet Nam; Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Thanh Luu Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 100000, Viet Nam; Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City 700000, Viet Nam
| | - Hideaki Maseda
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
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Thiagarajan V, Seenivasan R, Jenkins D, Chandrasekaran N, Mukherjee A. Mixture toxicity of TiO 2 NPs and tetracycline at two trophic levels in the marine ecosystem: Chlorella sp. and Artemia salina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152241. [PMID: 34921881 DOI: 10.1016/j.scitotenv.2021.152241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/27/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Increasing usage of both nanomaterials and pharmaceuticals and their unabated release to the marine ecosystem pose a serious concern nowadays. The toxicity of the mixture of TiO2 NPs and tetracycline (TC) in the marine species are not very well covered in prior literature. The current study explores the joint toxic effects of TiO2 NPs and TC in a simulated marine food chain: Chlorella sp. and Artemia salina. Chlorella sp. was interacted with pristine TiO2 NPs (0.05, 05, and 5 mg/L), TC (0.5 mg/L), and their combinations for 48 h. The toxicity induced in Chlorella sp. by pristine TiO2 NPs through oxidative stress and chloroplast damage was not significantly changed in the presence of TC. Principal component analysis for the toxicity parameters revealed a strong association between growth inhibition and adsorption/internalization. In the second trophic level (A. salina), the waterborne exposure of TC additively increased the toxicity of TiO2 NPs. Both adsorption and degradation played a major role in the removal of TC from the suspension, resulting in additive toxic effects in both Chlorella sp. and A. salina. Compared to the waterborne exposure, the foodborne exposure of TiO2 NPs and TC induced lesser toxic effects owing to reduced uptake and accumulation in A. salina. Biomagnification results indicate that the dietary transfer of TiO2 NPs and TC does not pose a serious environmental threat in this two-level marine food chain.
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Affiliation(s)
- Vignesh Thiagarajan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - R Seenivasan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - David Jenkins
- Wolfson Nanomaterials & Devices Laboratory, School of Computing, Electronics and Mathematics, Faculty of Science & Engineering, University of Plymouth, Devon, UK
| | - N Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India.
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Wang M, Zhao J, Wu L, Ma T. Effects of 4-epianhydrotetracycline on oxidative stress in zebrafish (Danio rerio) embryos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:149047. [PMID: 34280629 DOI: 10.1016/j.scitotenv.2021.149047] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/22/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
4-Epianhydrotetracycline (4-EATC) is a major intermediate product of tetracycline during its degradation progress in the natural environment, which is frequently detected in aquatic environments and poses a potential threat to aquatic organisms. In the present study, the ecotoxicity of 4-EATC have been studied from the perspective of oxidative stress by using zebrafish embryos. After 96 h exposure, the reactive oxygen species (ROS) levels, malondialdehyde (MDA) concentrations and protein carbonyl (PC) contents in zebrafish embryos in the lower-concentration 4-EATC treatment groups (1.25 mg/L and 2.50 mg/L) showed no significant differences compared with the negative control group. However, the total superoxide dismutase (SOD) activity was increased significantly. After exposed to the higher-concentration of 4-EATC (5.00, 10.0 and 20.0 mg/L) resulted in a significant increase in ROS levels, MDA concentrations and PC contents, in contrast, a significant decrease in SOD activities. The results indicate that exposure to high concentrations of 4-EATC (5.00, 10.0 and 20.0 mg/L) could disrupt the redox equilibrium in zebrafish embryos, leading to the occurrence of oxidative damage. Apoptosis of the embryonic cells could be induced by 4-EATC exposure at different concentration and the rate of apoptosis enhanced with the increase of 4-EATC concentration. The pericardium was the most frequent site of apoptosis. The present study points out that more attention should be paid to the potential ecological risks of antibiotic degradation products.
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Affiliation(s)
- Meng Wang
- College of Biology and Environmental Science, Jishou University, Jishou 416000, PR China
| | - Jianfu Zhao
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Lingling Wu
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Taowu Ma
- College of Biology and Environmental Science, Jishou University, Jishou 416000, PR China
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Li J, Yang L, Wu Z. Toxicity of chlortetracycline and oxytetracycline on Vallisneria natans (Lour.) Hare. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62549-62561. [PMID: 34212323 DOI: 10.1007/s11356-021-14922-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
Tetracyclines are frequently detected in water bodies due to their widespread use in aquaculture and animal husbandry. A hydroponic experiment was conducted to explore the phytotoxic effects of Vallisneria natans (Lour.) Hare exposed to various concentrations of chlortetracycline (CTC) and oxytetracycline (OTC) (0, 0.1, 1, 10, 30, 50, and 100 mg/L) for 7 days (7 D) and 14 days (14 D), respectively. The results showed that similar to OTC treatment for 7 D, the relative growth rates (RGR) and catalase (CAT) activity of V. natans, after 7 D of CTC exposure, decreased significantly at 10 mg/L and 30 mg/L, respectively. The content of soluble protein notably decreased when CTC ≥ 10 mg/L and OTC ≥ 30 mg/L. The hydrogen peroxide (H2O2) content was significantly stimulated when OTC ≥ 10 mg/L, while it hardly changed when exposed to CTC. After 14 D, the malondialdehyde (MDA) and H2O2 contents of V. natans were significantly higher than those of the control group under a high concentration of OTC (≥ 30 mg/L), but they did not change significantly under a high concentration of CTC. The activity of polyphenol oxidase (PPO), under CTC treatment after 14 D, showed first a significant increase then decreases; the maximum value (125% of the control) was noticed at 10 mg/L CTC, while it remained unchanged when exposed to OTC. The soluble protein content significantly decreased at 10 mg/L CTC and 0.1 mg/L OTC, respectively. The RGR, CAT, and peroxidase (POD) activities, similar to OTC treatment after 14 D, decreased evidently when CTC was 10 mg/L, 30 mg/L, and 0.1 mg/L, respectively. CTC and OTC harm the chlorophyll content of V. natans after 14 D, and the reductions of chlorophyll a and carotenoid were more pronounced than chlorophyll b. The results suggest that CTC and OTC both have a negative effect on the growth of V. natans, and OTC can cause oxidative damage in V. natans but CTC harms the metabolism process without inducing oxidative damage. Overall, the toxicity of OTC to V. natans is stronger than that of CTC.
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Affiliation(s)
- Jing Li
- Water Pollution Ecology Laboratory, College of Life Science, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Lu Yang
- Water Pollution Ecology Laboratory, College of Life Science, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Zhonghua Wu
- Water Pollution Ecology Laboratory, College of Life Science, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China.
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Ding C, Ma J, Jiang W, Zhao H, Shi M, Cui G, Yan T, Wang Q, Li J, Qiu Z. Chironomidae larvae: A neglected enricher of antibiotic resistance genes in the food chain of freshwater environments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 285:117486. [PMID: 34098457 DOI: 10.1016/j.envpol.2021.117486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 05/02/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Infection caused by pathogenic bacteria carrying antibiotic resistance genes (ARGs) is a serious challenge to human health. Water environment, including water and surface sediments, is an important repository of ARGs, and the activity of aquatic animal can affect the development of ARG pollution in the water environment. Macrobenthic invertebrates are an important component of aquatic ecosystems, and their effects on ARG development in aquatic environments remain unreported. The distribution of ARGs, including tetA gene, sul2 gene, and kan gene, in Chironomidae larvae is demonstrated in this study for the first time. The ARG distribution was related to sampling points, metal elements, and seasons. Animal models demonstrated that Chironomidae larvae enriched ARGs from water and passed them on to downstream predators in the food chain. Conjugative transfer mediated by resistant plasmids was crucial in the spread of ARG in Chironomidae larvae, and upregulated expression of trfAp gene and trbBp gene was the molecular mechanism. Escherichia in Proteobacteria and Flavobacterium in Bacteroidetes, which are gram-negative bacteria in Chironomidae larvae, are the primary host bacteria of ARGs confirmed via resistance screening and DNA sequencing of V4 region of 16S rRNA gene. Feeding experiments further confirmed that ARGs from Chironomidae larvae can be enriched in the fish gut. Research gaps in food chain between sediments and fish are addressed in this study, and Chironomidae larvae is an important enricher of ARGs in the freshwater environment.
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Affiliation(s)
- Chengshi Ding
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China; Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Jing Ma
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Wanxiang Jiang
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Hanyu Zhao
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Mengmeng Shi
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Guoqing Cui
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Tongdi Yan
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Qi Wang
- College of Life Science, Zaozhuang University, Zaozhuang, Shandong Province, 277160, China
| | - Junwen Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Zhigang Qiu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
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11
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Wang M, Zhou T, Liang Y, Li G, Sun Y. Response characteristics of nirS-type denitrifier Paracoccus denitrificans under florfenicol stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 219:112355. [PMID: 34049225 DOI: 10.1016/j.ecoenv.2021.112355] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/13/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
Florfenicol (FF) is widely used in aquaculture and can interfere with denitrification when released into natural ecosystems. The aim of this study was to analyze the response characteristics of nirS-type denitrifier Paracoccus denitrificans under FF stress and further mine antibiotic-responsive factors in aquatic environment. Phenotypic analysis revealed that FF delayed the nitrate removal with a maximum inhibition value of 82.4% at exponential growth phase, leading to nitrite accumulation reached to 21.9-fold and biofilm biomass decreased by ~38.6%, which were due to the lower bacterial population count (P < 0.01). RNA-seq transcriptome analyses indicated that FF treatment decreased the expression of nirS, norB, nosD and nosZ genes that encoded enzymes required for NO2- to N2 conversion from 1.02- to 2.21-fold (P < 0.001). Furthermore, gene associated with the flagellar system FlgL was also down-regulated by 1.03-fold (P < 0.001). Moreover, 10 confirmed sRNAs were significantly induced, which regulated a wide range of metabolic pathways and protein expression. Interestingly, different bacteria contained the same sRNAs means that sRNAs can spread between them. Overall, this study suggests that the denitrification of nirS-type denitrifiers can be hampered widely by FF and the key sRNAs have great potential to be antibiotic-responsive factors.
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Affiliation(s)
- Mei Wang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Tong Zhou
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Yi Liang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Ganwu Li
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Yongxue Sun
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
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12
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de Albuquerque FP, de Oliveira JL, Dos Santos Machado L, Richardi VS, da Silva MAN, Pompêo MLM, Fraceto LF, Carlos VM. Use of nontarget organism Chironomus sancticaroli to study the toxic effects of nanoatrazine. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:733-750. [PMID: 33821358 DOI: 10.1007/s10646-021-02400-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
Atrazine was banned by the European Union in 2004, but is still used in many countries. Agricultural research employing nanotechnology has been developed in order to reduce the impacts to the environment and nontarget organisms. Nanoatrazine was developed as a carrier system and have been considered efficient in weed control. However, its toxicity must be verified with nontarget organisms. In this context, the aim of the present study was to investigate ecotoxicological effects of solid lipid nanoparticles (empty and loaded with atrazine) and atrazine on Chironomus sancticaroli larvae, evaluating the endpoints: mortality, mentum deformity, development rate and biochemical biomarkers. The contaminant concentrations used were 2, 470, 950, and 1900 μg L-1 in acute (96 h) and 2 μg L-1 in subchronic (10 days) bioassays. An environmentally relevant concentration of atrazine (2 μg L-1) presented toxic and lethal effects towards the larvae. The nanoparticles loaded with atrazine showed toxic effects similar to free atrazine, causing mortality and biochemical alterations on the larvae. The nanoparticle without atrazine caused biochemical alterations and mortality, indicating a possible toxic effect of the formulation on the larvae. In the acute bioassay, most concentrations of nanoparticles loaded with atrazine were not dose dependent for the endpoint mortality. Only the atrazine concentration of 470 μg L-1 was statistically significant to endpoint mentum deformity. The atrazine and nanoparticles (with and without atrazine) did not affect larval development. The results indicate that Chironomus sancticaroli was sensitive to monitor nanoatrazine, presenting potential to be used in studies of toxicity of nanopesticides.
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Affiliation(s)
- Felícia Pereira de Albuquerque
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil.
| | - Jhones Luiz de Oliveira
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil
| | - Leila Dos Santos Machado
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil
| | | | | | - Marcelo Luiz Martins Pompêo
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil
- Department of Ecology, University of São Paulo (USP), São Paulo, Brazil
| | - Leonardo Fernandes Fraceto
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil.
| | - Viviane Moschini Carlos
- São Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Av. Três de março, 511, Alto da Boa Vista, 18087-180, Sorocaba, Brazil
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Yin B, Zhang M, Zeng Y, Chen H, Fan T, Wu Z, Cao L, Zhao Q. The changes of antioxidant system and intestinal bacteria in earthworms (Metaphire guillelmi) on the enhanced degradation of tetracycline. CHEMOSPHERE 2021; 265:129097. [PMID: 33279238 DOI: 10.1016/j.chemosphere.2020.129097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Tetracycline (TC) in soil severely imperils food security and ecosystem function. Metaphire guillelmi is a common species in farmland. It could impact the degradation of antibiotics. However, how it affects is rarely unknown. Hence, the present study aimed to investigate the effects of M. guillelmi on the TC degradation in soil and the changes of the antioxidant system and intestinal bacteria in M. guillelmi. The treatments that M. guillelmi was inoculated on soil contaminated with different TC concentrations were contrasted with those without M. guillelmi. After 21 days, the degradation rate of TC significantly increased by 13.70%, 18.14% and 29.01% at 10, 50 and 100 mg kg -1 TC dose, respectively, due to the inoculation of M. guillelmi. The half-life of TC was also shortened nearly by 1/3 to 2/3. Superoxide dismutase (SOD) increased in a dose-dependent manner with the increase of TC concentration on the 7th and 14th day. Catalase (CAT) and glutathione S-transferase (GST) presented an inverted U-shaped dose response on the 7th day, and the peak of enzyme activities occurred at TC concentration of 0.1, 1 mg kg -1 (CAT) and 0.1 mg kg -1 (GST). Malondialdehyde (MDA) contents did not change significantly. At the phylum level, only Verrucomicrobia significantly decreased under 1 mg kg -1 and 100 mg kg -1 TC dose. Genus Paracoccus, Singulisphaera, Acinetobacter and Bacillus significantly increased and became the dominant bacterium during the TC degradation. Overall, the antioxidant system and intestinal bacteria of M. guillelmi were affected by the different concentrations of TC pollution, which provided new ideas for the research of mechanism of TC degradation by earthworms in the future.
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Affiliation(s)
- Bangyi Yin
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Manrui Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yuxiao Zeng
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Haowen Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Tianxinzhi Fan
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zexuan Wu
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Linkui Cao
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Qi Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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14
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Muñiz-González AB. Ibuprofen as an emerging pollutant on non-target aquatic invertebrates: Effects on Chironomus riparius. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 81:103537. [PMID: 33157253 DOI: 10.1016/j.etap.2020.103537] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
The concern about pharmaceuticals has been increased over the last decade due to their burgeoning consumption. Ibuprofen has an extensive presence in surface water with risks for the aquatic biota. This study focuses on the effects of ibuprofen at environmental concentrations on the survival, transcriptional level, and enzymatic activity for 24, 96 h on Chironomus riparius. Ibuprofen developed a substantial effect on survival by all the conditions. mRNA levels of EcR, Dronc, and Met (endocrine system), hsp70, hsp24, and hsp27 (stress response), and Proph and Def (immune system) were modified, joined to increased GST and PO activity. The results confirmed alterations on the development of C. riparius, as well as two essential mechanisms, involved in protection against external toxicological challenge. Ibuprofen poses an incipient risk to C. riparius and could at an organismal level by compromising their survival, development, and ability to respond to adverse conditions on the future populations.
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Affiliation(s)
- Ana-Belén Muñiz-González
- Environmental Toxicology and Biology Group, Department of Mathematics and Fluid Physics, UNED, Spain.
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15
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Park K, Kwak IS. Multi-Level Gene Expression in Response to Environmental Stress in Aquatic Invertebrate Chironomids: Potential Applications in Water Quality Monitoring. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 259:77-122. [PMID: 34661753 DOI: 10.1007/398_2021_79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In freshwater ecosystems, aquatic invertebrates are influenced continuously by both physical stress and xenobiotics. Chironomids (Diptera; Chironomidae), or non-biting midges, are the most diverse and abundant invertebrates in freshwater habitats. They are a fundamental link in food chains of aquatic ecosystems. Chironomid larvae tolerate stress factors in their environments via various physiological processes. At the molecular level, environmental pollutants induce multi-level gene responses in Chironomus that regulate cellular protection through the activation of defense processes. This paper reviews literature on the transcriptional responses of biomarker genes to environmental stress in chironomids at the molecular level, in studies conducted from 1991 to 2020 (120 selected literatures of 374 results with the keywords "Chironomus and gene expression" by PubMed search tool). According to these studies, transcriptional responses in chironomids vary depending on the type of stress factor and defensive responses associated with antioxidant activity, the endocrine system, detoxification, homeostasis and stress response, energy metabolism, ribosomal machinery, apoptosis, DNA repair, and epigenetics. These data could provide a comprehensive overview of how Chironomus species respond to pollutants in aquatic environments. Furthermore, the transcriptomic data could facilitate the development of genetic tools for water quality and environmental monitoring based on resident chironomid species.
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Affiliation(s)
- Kiyun Park
- Fisheries Science Institute, Chonnam National University, Yeosu, South Korea
| | - Ihn-Sil Kwak
- Department of Ocean Integrated Science and Fisheries Science Institute, Chonnam National University, Yeosu, South Korea.
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16
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Liu Y, Pang Y, Yang L, Ning S, Wang D, Wu Z. Responses of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa roxb. to tetracycline exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110890. [PMID: 32593096 DOI: 10.1016/j.ecoenv.2020.110890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
The presence of tetracycline is ubiquitous and has adverse effects on aquatic systems. A hydroponic experiment was conducted to investigate the ecological sensitivity of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa Roxb. Exposed to different concentrations of tetracycline (0, 0.1, 1, 10, 30 and 50 mg/L) for one day (1D) and 14 days (14D). The results showed that after 1D of tetracycline exposure, the physiological indices of H. dubia had no remarkable change except for proline which was significantly stimulated under 0.1 mg/L tetracycline. For T. bispinosa, guaiacol peroxidase (POD), polyphenol oxidase (PPO) and ascorbate peroxidase (APX) activity and protein and proline content were notably promoted under different concentrations of tetracycline, but PPO activity was significantly decreased in 50 mg/L. After 14D, tetracycline caused no harm to the growth and protein content of H. dubia, but negatively influenced lipid peroxidation product and chlorophyll content in H. dubia under high tetracycline concentrations. Superoxide dismutase (SOD) and POD activity of H. dubia significantly increased at high tetracycline concentrations, while catalase (CAT) and PPO activity significantly decreased. APX activity in H. dubia increased with tetracycline concentrations at low tetracycline concentrations. For T. bispinosa, high concentrations of tetracycline application significantly inhibited its growth and the content of protein and chlorophyll. SOD, POD, CAT, and PPO activity of T. bispinosa were induced under different concentrations of tetracycline and no lipid peroxidation was observed. APX activity in T. bispinosa was significantly inhibited at high tetracycline concentrations. The results suggest that tetracycline can cause oxidative damage in H. dubia but harm the metabolism process of T. bispinosa without inducing oxidative damage. Overall, the sensitivity of T. bispinosa exposed to tetracycline exposure is higher than that of H. dubia.
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Affiliation(s)
- Yilin Liu
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Yijian Pang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Lu Yang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Shiqi Ning
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Donghan Wang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Zhonghua Wu
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China.
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17
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Xie Z, Gan Y, Tang J, Fan S, Wu X, Li X, Cheng H, Tang J. Combined effects of environmentally relevant concentrations of diclofenac and cadmium on Chironomus riparius larvae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110906. [PMID: 32800241 DOI: 10.1016/j.ecoenv.2020.110906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
The nonsteroidal anti-inflammatory drug diclofenac (DCF) is considered a contaminant of emerging concern. DCF can co-exist with heavy metals in aquatic environments, causing unexpected risks to aquatic organisms. This study aimed to assess the combined effects of DCF and cadmium (Cd) at environmentally relevant concentrations on the bioconcentration and status of oxidative stress and detoxification in Chironomus riparius larvae. The larvae were exposed to DCF (2 and 20 μg L-1) and Cd (5 and 50 μg L-1) alone or in mixtures for 48 h. The combined exposure to DCF and Cd was found to reciprocally facilitate the accumulation of each compound in larvae compared with single exposures. As indicated by the antioxidant enzyme activities, reduced glutathione levels, and malondialdehyde contents, the low concentration of the mixture (2 μg L-1 DCF + 5 μg L-1 Cd) did not alter the oxidative stress status in larvae, while the high concentration of the mixture (20 μg L-1 DCF + 50 μg L-1 Cd) induced stronger oxidative damage to larvae compared with single exposures. The expression levels of eight genes (CuZnSOD, MnSOD, CAT, GSTd3, GSTe1, GSTs4, CYP4G, and CYP9AT2) significantly decreased due to the high concentration of the mixture compared with single exposures in most cases. Overall, the results suggest that the mixture of DCF and Cd might exert greater ecological risks to aquatic insects compared with their individual compounds.
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Affiliation(s)
- Zhengxin Xie
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.
| | - Ying Gan
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Jun Tang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Shisuo Fan
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Xiangwei Wu
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Xuede Li
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China; Hefei Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, PR China
| | - Haomiao Cheng
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
| | - Jie Tang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
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18
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Yu K, Li X, Qiu Y, Zeng X, Yu X, Wang W, Yi X, Huang L. Low-dose effects on thyroid disruption in zebrafish by long-term exposure to oxytetracycline. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 227:105608. [PMID: 32858424 DOI: 10.1016/j.aquatox.2020.105608] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/13/2020] [Accepted: 08/16/2020] [Indexed: 06/11/2023]
Abstract
As a feed additive in agriculture, the antibiotic oxytetracycline (OTC) has become widely distributed in the natural environment, leading to the exposure of many organisms to low doses of OTC. Although OTC is clinically contraindicated in children because of its multiple side effects, the effect of exposure to low doses of environmental OTC on children is unknown, particularly during development. In this study, we investigated the effects of OTC on the thyroid endocrine system in zebrafish, through determinations of the whole-body contents of triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) by enzyme-linked immunosorbent assay, and analysis of the mRNA expression of regulatory genes involved in the hypothalamus-pituitary-thyroid (HPT) axis using quantitative real-time polymerase chain reaction. Zebrafish embryos were exposed to OTC at environmentally relevant concentrations from 2 h to 120 days post-fertilisation. After exposure to OTC at 1,000 and 5,000 ng/L, T3 contents were significantly enhanced (37.8% and 45.1%, respectively) and TSH contents were reduced (16% and 16.3%, respectively) compared with those in the controls. The OTC-driven increase in the transcription of genes involved in thyroid synthesis (tpo and nis) may be responsible for the altered T3 levels. These data indicate that OTC may cause thyroid dysfunction and lead to reduced TSH secretion owing to enhanced negative feedback control of the HPT axis. Meanwhile, a decrease in body length, weight, and BMI and an increase in heart rate were observed with increasing OTC exposure. In conclusion, our results indicate that long-term exposure to low concentrations of OTC may alter the transcription of key genes involved in the HPT axis, as well as T3 and TSH contents, thereby disrupting the thyroid system and affecting the growth and development of zebrafish.
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Affiliation(s)
- Kan Yu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Department of Pediatrics, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiaoyong Li
- Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yushu Qiu
- Department of Pediatrics, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xinxin Zeng
- Department of Pediatrics, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiaogang Yu
- Municipal Key Lab of Environment and Children's Health, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Weiye Wang
- Municipal Key Lab of Environment and Children's Health, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| | - Xiaoping Yi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Lisu Huang
- Department of Pediatrics, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
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19
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Yang H, Lu G, Yan Z, Liu J, Dong H, Bao X, Zhang X, Sun Y. Residues, bioaccumulation, and trophic transfer of pharmaceuticals and personal care products in highly urbanized rivers affected by water diversion. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122245. [PMID: 32062346 DOI: 10.1016/j.jhazmat.2020.122245] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 05/18/2023]
Abstract
Little information is available on the bioaccumulation and trophic transfer of pharmaceuticals and personal care products (PPCPs) in urban rivers system, particularly for those affected by water transfer. Herein, a comprehensive study was conducted to investigate the biological residues, bioaccumulation and trophic transfer of 45 PPCPs in the Nanjing Qinhuai River system under the background of water diversion projects. A total of 30 compounds were detected with a descending order of overall concentration as plankton > benthic mollusc > fish (except grass carp). Higher biological residues were observed in the downstream than those in the upstream, with the largest increase for fish (136.4 %) and the lowest increase for phytoplankton (5.4 %). However, the bioaccumulation classifications of most PPCPs were unchanged among the three different water-diversion regions. Trophic magnification factors (TMFs) of organic UV filters (homosalate, oxybenzone, ethylhexyl methoxycinnamate and octocrylene) ranged from 1.23 to 2.04, suggesting trophic magnification potential, while trophic dilution for pharmaceuticals (sertraline, citalopram, caffeine and roxithromycin) with TMFs of 0.42 to 0.50 were observed. A notable positive correlation was observed between the pH-dependent distribution coefficient (logDow) and the TMFs of the PPCPs (P < 0.05). Although the human health hazard assessment indicated no immediate health risk via the consumption of freshwater food, attention should be paid to the joint effects of PPCPs.
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Affiliation(s)
- Haohan Yang
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Guanghua Lu
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Water Conservancy Project & Civil Engineering College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China.
| | - Zhenhua Yan
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Jianchao Liu
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Huike Dong
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Xuhui Bao
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Xiadong Zhang
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Yu Sun
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
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20
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Ji Y, Zhang J, Liu Y, Zhou J, Wu N, Zhang H. Environmental behavior of and gastropod biomarker response to trace metals from a backwater area of Xian'nv lake. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 194:110381. [PMID: 32145529 DOI: 10.1016/j.ecoenv.2020.110381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Combined with sediment pollutant analysis, the gastropod Cipangopaludina cahayensis was chosen as an indicator organism to evaluate the environmental behavior of trace metals and the aquatic ecological risk that they present in a backwater area of Xian'nv Lake. Based on hydrological characteristics, 24 sampling sites representing the main stream (MS), tributaries (TR), lake area (LA) and lake tributaries (LT) were collected. The results revealed that cadmium (Cd) was the main pollutant and that it significantly accumulated in sediments of the research area. Based on the pollutant concentrations, the degree of Cd pollution was ranked in the following order: LA > MS > TR > LT. Several intersections between the rivers and Xian'nv Lake, including LA1, LA7 and LA 10, were observed to have higher Cd deposition. There was a significant difference in the spatial distribution of pollutants, which resulted in a higher accumulation of trace metals in the backwater area and its tributary. The Cd content in the visceral sac of C. cahayensis was positively correlated with the concentration of heavy metals in the sediment. The response of multiple antioxidant biomarkers, including superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST), as well as the glutathione (GSH) content and the level of by-products of lipid peroxidation (TBARS), in C. cahayensis revealed a potential relationship to the environmental behavior of the pollutants. By combining the different biomarkers responses, the integrated biomarker response index (IBR) corresponded well with the pollution distribution characteristics in different areas.
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Affiliation(s)
- Yong Ji
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
| | - Jie Zhang
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
| | - Ye Liu
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Juan Zhou
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Naichen Wu
- Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs Gade 6B, 8000, Aarhus C, Denmark
| | - Hao Zhang
- Faculty of Science and Technology, Kochi University, Monobe B200, Nankoku, Kochi, 783-8502, Japan
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21
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Park K, Kwak IS. Cadmium-induced developmental alteration and upregulation of serine-type endopeptidase transcripts in wild freshwater populations of Chironomus plumosus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110240. [PMID: 32014723 DOI: 10.1016/j.ecoenv.2020.110240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Cadmium, a toxic heavy metal, is a persistent environmental contaminant with irreversible toxicity to aquatic organisms. Chironomus plumosus, a natural species, is the largest sediment-burrowing aquatic midge in freshwater environments. In this study, we evaluated developmental defects in C. plumosus resulting from Cd exposure. In C. plumosus larvae, Cd exposure induced decreased survival and growth rates, reduction of emergence rate and sex ratio, and delayed emergence, as well as elevating the incidence of split tooth deformities. To identify potential biomarker genes to assess environmental pollutants such as Cd, we identified differentially expressed genes (DEGs) in C. plumosus exposed to various Cd concentrations. Among fourteen characterized DEGs, serine-type endopeptidase (SP) and heat shock protein 70 (HSP70) genes exhibited significant upregulation in C. plumosus larvae after Cd exposure. Therefore, we evaluated SP and HSP70 responses in natural C. plumosus populations collected from three sites of a Korean river and analyzed their correlations with eighteen environmental quality characteristics using principal component analysis. The highest expression of SP and HSP70 transcripts was observed in C. plumosus populations from Yeosu in Korea, which has high concentrations of polluting heavy metals. SP transcript expression was positively correlated with concentrations of Cd, Pb, Al, Fe, NO2, and NO3. These results suggested that environmental pollutants such as Cd can impair proteolytic activity in the digestive system of C. plumosus and may ultimately induce developmental alterations. We therefore suggest SP as a potential biomarker to assess the effects of environmental pollutants in aquatic ecosystems.
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Affiliation(s)
- Kiyun Park
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea
| | - Ihn-Sil Kwak
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea; Faculty of Marine Technology, Chonnam National University, Yeosu, 550-749, South Korea.
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Xie Z, Luan H, Zhang Y, Wang M, Cao D, Yang J, Tang J, Fan S, Wu X, Hua R. Interactive effects of diclofenac and copper on bioconcentration and multiple biomarkers in crucian carp (Carassius auratus). CHEMOSPHERE 2020; 242:125141. [PMID: 31677505 DOI: 10.1016/j.chemosphere.2019.125141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/14/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
Diclofenac (DCF), a non-steroidal anti-inflammatory drug, is widespread in aquatic environments and coexists with heavy metals to form combined pollution. However, the interactive effects of DCF and heavy metals on aquatic organisms remain unknown. This study aimed to investigate the interactive effects of DCF and copper (Cu) on the bioconcentration, oxidative stress status and detoxification-related gene expression in crucian carp (Carassius auratus). Fish were exposed to Cu (100 μg L-1) and DCF (1, 10, 100 and 1000 μg L-1) alone or in combination for 7 days. Results obtained showed that the treatment of Cu combined with high levels of DCF (100 and 1000 μg L-1) significantly decreased tissue concentrations of DCF and Cu compared to the correspondingly individual exposure. Concerning oxidative stress status, as reflected by the activities of antioxidant enzymes and malondialdehyde content, low exposure concentrations of DCF (1 and 10 μg L-1) seemed to mitigate the oxidative stress induced by Cu, whereas the co-exposure of Cu with the highest level of DCF (1000 μg L-1) led to stronger oxidative damage in fish liver than Cu exposure alone. With regarding to detoxification-related genes, in most cases, the expressions of cyp 1a, cyp 3a, gstα, gstπ, pxr and P-gp in crucian carp were significantly altered upon exposure to the compounds in combination compared to exposure to the compounds individually. Collectively, these findings indicate the capacity of each of these pollutants to alter bioconcentration potential, pro-oxidative effects and detoxification-related gene responses of the other when both co-occur at specific concentrations.
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Affiliation(s)
- Zhengxin Xie
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.
| | - Haiyang Luan
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Yixuan Zhang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Min Wang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Danchun Cao
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Jianhao Yang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Jun Tang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Shisuo Fan
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Xiangwei Wu
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Rimao Hua
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.
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Interactive Effects of Sertraline and Diphenhydramine on Biochemical and Behavioral Responses in Crucian Carp ( Carassius auratus). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16173137. [PMID: 31466416 PMCID: PMC6747225 DOI: 10.3390/ijerph16173137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 02/05/2023]
Abstract
The ecotoxicity of psychiatric pharmaceuticals to aquatic organisms is being increasingly recognized. However, current ecological studies focus on the effects of individual psychiatric pharmaceuticals, with little attention being given to their combined effects. In this study, the interactive effects of two psychiatric pharmaceuticals, sertraline (SER) and diphenhydramine (DPH), on bioconcentration and biochemical and behavioral responses were investigated in crucian carp (Carassius auratus) after seven days of exposure. DPH was found to increase the accumulation of SER in fish tissues relative to SER-alone exposure. In addition, the mixture of SER and DPH significantly changed the activities of antioxidant enzymes and led to significant increases in malondialdehyde content, relative to SER alone. Concerning the neurotoxicity, relative to SER-alone exposure, brain AChE activity was significantly enhanced in fish following the combined exposure. Regarding behavioral responses, swimming activity and shoaling behavior were significantly altered in co-exposure treatments compared with the SER alone. Moreover, the inhibition effects on the feeding rates were increased in co-exposure treatments compared to SER alone. Collectively, our results suggest that the mixtures of psychiatric pharmaceuticals may pose more severe ecological risks to aquatic organisms compared to these compounds individually.
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Pan L, Cao Y, Zang J, Huang Q, Wang L, Zhang Y, Fan S, Tang J, Xie Z. Preparation of Iron-Loaded Granular Activated Carbon Catalyst and Its Application in Tetracycline Antibiotic Removal from Aqueous Solution. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2270. [PMID: 31252570 PMCID: PMC6651779 DOI: 10.3390/ijerph16132270] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/22/2019] [Accepted: 06/24/2019] [Indexed: 11/16/2022]
Abstract
The removal of tetracycline antibiotics from water is currently an important environmental issue. Here we prepared an iron-loaded granular activated carbon catalyst (GAC-Fe) through a one-step calcination method to remove tetracycline antibiotics from aqueous solution. The GAC-Fe was characterized by Fourier transform infrared absorption spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction analysis. The effect of different influencing factors on the removal behavior of tetracycline antibiotics was studied, such as the solid-to-liquid ratio, H2O2 dosage, environmental temperature, initial pH, and contact time. The removal mechanism was explored through Fe ion dissolution and a free radical quenching experiment. The results show that the optimum solid-to-liquid ratio was 3.0 g∙L-1 and the suitable H2O2 dosage was 1.0 mL (3%). The applicable environmental temperature was 25 °C and the appropriate pH value was 2.0. The removal rate of tetracycline antibiotics tended to be stable in a contact time of 600 min. The main mechanism of tetracycline antibiotic removal by GAC-Fe was heterogeneous catalytic reaction through iron ion leaching and free radical inhibition experiment. The hydroxyl radical played a major role during the removal process. The partially dissolved iron ions initiated a homogeneous catalytic reaction. However, heterogeneous catalytic degradation was the main reaction. The GAC-Fe could still remove tetracycline antibiotics after five cycles, especially for methacycline and minocycline. Our work suggests that the GAC-Fe catalyst has potential as a remediation agent for tetracycline antibiotics in aqueous solution.
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Affiliation(s)
- Ling Pan
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Yanzhi Cao
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Ji Zang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Qinqing Huang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Lin Wang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Yingsheng Zhang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Shisuo Fan
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Jun Tang
- Key Laboratory for Agri-Food Safety, Anhui Agricultural University, Hefei 230036, China
| | - Zhengxin Xie
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
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25
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Zhang P, Yan Z, Lu G, Ji Y. Single and combined effects of microplastics and roxithromycin on Daphnia magna. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17010-17020. [PMID: 30972681 DOI: 10.1007/s11356-019-05031-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
There is a rising concern about the pollution of microplastics (plastic particles < 5 mm) in water due to their physicochemical properties, especially their interaction with organic contaminants; however, such knowledge is still limited. The mass production and consumption of medication for the treatment of infectious diseases in human and animals have led to the ubiquity of antibiotics in the environment. We studied the single and joint effects of microplastics (1-μm and 10-μm polystyrene particles, PS) and roxithromycin (ROX) on Daphnia magna through the acute and sublethal toxicity tests. The 48-h median effective concentration (EC50) of 1-μm and 10-μm PS to D. magna was 66.97 mg/L and 199.94 mg/L, respectively, while the value of ROX was 20.28 mg/L. Malondialdehyde (MDA) levels and the activities of four enzymatic biomarkers, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione S-transferase (GST), were further detected to assess the oxidative stress caused in D. magna caused. The results showed that 48-h exposure to PS (0.1 mg/L) or ROX (0.01 mg/L) alone activated the activities of CAT and GST and MDA levels. When compared with the ROX alone, the responses of GPx and MDA in D. magna co-exposed to 1-μm PS were significantly decreased, while co-exposure to 10-μm PS significantly decreased the responses of GST and MDA. Furthermore, the integrated biomarker response version 2 (IBRv2) analysis revealed that co-exposure to 1-μm PS and ROX led to the strongest biological responses in D. magna. Our findings underlined that microplastics should be a concern when they interact with the co-existence of pollutants in the aquatic environment.
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Affiliation(s)
- Peng Zhang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Zhenhua Yan
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Guanghua Lu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
- Water Conservancy Project and Civil Engineering College, Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China.
| | - Yong Ji
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
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Xie Z, Tang J, Wu X, Fan S, Cheng H, Li X, Hua R. Bioconcentration and ecotoxicity of sulfadiazine in the aquatic midge Chironomus riparius. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 66:69-74. [PMID: 30622086 DOI: 10.1016/j.etap.2018.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/05/2018] [Accepted: 12/29/2018] [Indexed: 06/09/2023]
Abstract
Although sulfadiazine (SDZ) is widespread in aquatic environments, information regarding the effects of SDZ on aquatic insects is still limited. In the present study, the bioconcentration and the effects of SDZ on the antioxidant system and the expression of endocrine and stress-related genes in Chironomus riparius larvae were investigated. The larvae were exposed to SDZ at the nominal concentrations of 2, 20 and 200 μg/L for 48 h. The results showed that SDZ was taken up by C. riparius despite presenting low bioconcentration factor values (0.99-3.92). In addition, superoxide dismutase activity was markedly reduced compared with the control group, whereas the levels of malondialdehyde were not significantly affected by SDZ. Moreover, the mRNA expression of genes related to heat shock proteins (Hsp70 and Hsp27) and ecdysone pathway (EcR and E74) were significantly up-regulated following all SDZ treatments. In aggregate, our work provides novel and interesting results regarding the potential biochemical and genetic effects of SDZ on freshwater insects.
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Affiliation(s)
- Zhengxin Xie
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Jun Tang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Xiangwei Wu
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Shisuo Fan
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Haomiao Cheng
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
| | - Xuede Li
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Rimao Hua
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.
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