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Su Y, Lu J, Liu J, Wang N, Li F, Lei H. Optimization, validation, and application of a liquid chromatography-tandem mass spectrometry method for the determination of 47 banned drug and related chemical residues in livestock urine using graphitized carboxyl multi-walled carbon nanotubes-based QuEChERS extraction. J Chromatogr A 2024; 1721:464858. [PMID: 38564928 DOI: 10.1016/j.chroma.2024.464858] [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] [Received: 01/01/2024] [Revised: 02/21/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
The establishment of an efficient method for the analysis of drug residues in animal urine facilitates the real-time monitoring of drugs used in the production of animal-derived food. A modified QuEChERS extraction-liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was established for the determination of 47 banned drug and related chemical residues in livestock urine. The sample was extracted with acetonitrile by converting the acid-base environment. The sample cleanup effects of seven solid phase extraction cartridges and two EMR-Lipid products were compared, and three materials, including graphitized carboxyl multi-walled carbon nanotubes (MWCNTs), PSA, and C18, were selected as QuEChERS adsorbents from 24 materials. All analytes showed good linearity, with correlation coefficients (R2) greater than 0.9936. Low limits of quantification could be obtained, ranging from 0.2 to 5.5 ng/mL. The average recoveries at low, medium, and high spiked levels were in the range of 70.8-114.9 %, with intra-day precision ranging from 2.4 % to 11.2 % and inter-day precision ranging from 4.5 % to 16.1 %. Swine urine and bovine urine samples collected from different farms were effectively analyzed using the developed method, and metronidazole was detected in three swine urine samples.
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Affiliation(s)
- Youzhi Su
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control, Shihezi University, North 4th road NO.221, Shihezi 832003, China; Yining Customs Technology Center, Yining 83500, China
| | - Jianjiang Lu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control, Shihezi University, North 4th road NO.221, Shihezi 832003, China.
| | - Jun Liu
- Chengdu Customs Technology Center, No. 28, South 4th Section, First Ring Road, Wuhou District, Chengdu 610041, China.
| | - Ning Wang
- Yining Customs Technology Center, Yining 83500, China; School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control, Yili Normal University, Yining 835000, China
| | - Fang Li
- Yining Customs Technology Center, Yining 83500, China
| | - Hongqin Lei
- Yining Customs Technology Center, Yining 83500, China
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Tian G, Duan C, Lu W, Liu X, Zhao B, Meng Z, Wang Q, Nie S. Cellulose acetate-based electrospun nanofiber aerogel with excellent resilience and hydrophobicity for efficient removal of drug residues and oil contaminations from wastewater. Carbohydr Polym 2024; 329:121794. [PMID: 38286531 DOI: 10.1016/j.carbpol.2024.121794] [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] [Received: 10/31/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/31/2024]
Abstract
Cellulose acetate (CA)-based electrospun nanofiber aerogel (ENA) has drawn extensive attention for wastewater remediation due to its unique separation, inherent porosity and biodegradability. However, the low mechanical strength, poor durability, and limited adsorption ability hinder its further applications. We herein propose using silane-modified ENA, namely T-CA@Si@ZIF-67 (T-ENA), with enhanced resilience, hydrophobicity, durability and hetero-catalysis to remediate a complex wastewater containing oil and drug residues. The robust T-ENA was fabricated by pre-doping tetraethyl orthosilicate (TEOS) and ligand in its spinning precursors, followed by in-situ anchoring of porous ZIF-67 on the electrospun nanofibers (ENFs) via seeding method before freeze-drying and thermal curing (T). Results show that the T-ENA displays enhanced mechanical stability/resilience and hydrophobicity without compromise of its high porosity (>98 %) and low density (10 mg/cm3) due to the silane cross-linking. As a result, the hydrophobic T-ENA shows over 99 % separation efficiency towards different oil-water solutions. Meanwhile, thanks to the enhanced adsorption-catalytic ability and the activation of peroxymonosulfate (PMS) from the porous ZIF-67, fast degradation of carbamazepine (CBZ) residue in the wastewater can be achieved within 20 min. This work might provide a novel strategy for developing CA aerogels to remove organic pollutants.
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Affiliation(s)
- Guodong Tian
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Chao Duan
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Wanli Lu
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China; Kunshan Banknote Paper Industry Co., Ltd, Suzhou 215000, China
| | - Xiaoshuang Liu
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Baoke Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Zixuan Meng
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Qiang Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Shuangxi Nie
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
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McRae G, Leek DM, Meija J, Shurmer B, Lehotay SJ, Polzer J, Melanson JE, Mester Z. Production and certification of BOTS-1: bovine muscle-certified reference material for incurred veterinary drug residues. Anal Bioanal Chem 2024; 416:759-771. [PMID: 37326831 PMCID: PMC10766801 DOI: 10.1007/s00216-023-04794-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
A freeze-dried bovine muscle-certified reference material (CRM), known as BOTS-1 (DOI: https://doi.org/10.4224/crm.2018.bots-1 ), containing incurred residues of commonly used veterinary drugs was produced and certified for the mass fraction of eight veterinary drug residues. Value assignment was carried out using liquid chromatography tandem mass spectrometry (LC-MS/MS) methods in conjunction with isotope dilution and standard addition approaches involving stable isotope internal standards. Data from the National Research Council of Canada (NRC), Canadian Food Inspection Agency (CFIA), United States Department of Agriculture (USDA), and the Federal Office of Consumer Protection and Food Safety in Germany (BVL) were used for value assignment. Results for two drug residues were also obtained through an international inter-laboratory comparison CCQM-K141/P178 organized under the auspices of the International Bureau of Weights and Measures (BIPM). Quantitative NMR (1H-qNMR) was used to characterize primary standards of all veterinary drugs certified. The certified mass fractions of the veterinary drug residues were 490 ± 100 µg/kg for chlorpromazine, 44 ± 4.4 µg/kg for ciprofloxacin, 3.3 ± 1.4 µg/kg for clenbuterol, 9.5 ± 0.8 µg/kg for dexamethasone, 57 ± 4.8 µg/kg for enrofloxacin, 3.0 ± 0.4 µg/kg for meloxicam, 12.4 ± 1.2 µg/kg for ractopamine, and 2290 ± 120 µg/kg for sulfadiazine with expanded uncertainties quoted (95% confidence) which include the effects due to between-bottle inhomogeneity, instability during long-term storage and transportation, and characterization.
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Affiliation(s)
- Garnet McRae
- National Research Council Canada, Metrology, 1200 Montreal Road, ON, K1A 0R6, Ottawa, Canada.
| | - Donald M Leek
- National Research Council Canada, Metrology, 1200 Montreal Road, ON, K1A 0R6, Ottawa, Canada
| | - Juris Meija
- National Research Council Canada, Metrology, 1200 Montreal Road, ON, K1A 0R6, Ottawa, Canada
| | - Bryn Shurmer
- Canadian Food Inspection Agency, 116 Veterinary Road, Saskatoon, SK, S7N 2R3, Canada
| | - Steven J Lehotay
- US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Joachim Polzer
- German Federal Office of Consumer Protection and Food Safety (BVL), Mauerstrasse 39-42, 10117, Berlin, Germany
| | - Jeremy E Melanson
- National Research Council Canada, Metrology, 1200 Montreal Road, ON, K1A 0R6, Ottawa, Canada
| | - Zoltan Mester
- National Research Council Canada, Metrology, 1200 Montreal Road, ON, K1A 0R6, Ottawa, Canada
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Guo W, Qiu M, Pu Z, Long N, Yang M, Ren K, Ning R, Zhang S, Peng F, Sun F, Dai M. Geraniol-a potential alternative to antibiotics for bovine mastitis treatment without disturbing the host microbial community or causing drug residues and resistance. Front Cell Infect Microbiol 2023; 13:1126409. [PMID: 36875515 PMCID: PMC9978373 DOI: 10.3389/fcimb.2023.1126409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 01/31/2023] [Indexed: 02/18/2023] Open
Abstract
Mastitis is one of the most prevalent diseases of dairy cows. Currently, mastitis treatment in dairy cows is mainly based on antibiotics. However, the use of antibiotics causes adverse effects, including drug resistance, drug residues, host-microbiome destruction, and environmental pollution. The present study sought to investigate the potentiality of geraniol as an alternative to antibiotics for bovine mastitis treatment in dairy cows. Additionally, the effectiveness of treatment, improvement in inflammatory factors, the influence on microbiome, presence of drug residues, and drug resistance induction were compared and analyzed comprehensively.Geraniol showed an equivalent therapeutic rate as antibiotics in the mouse infection model and cows with mastitis. Moreover, geraniol significantly inhibited the pathogenic bacteria and restored the microbial community while increasing the abundance of probiotics in milk. Notably, geraniol did not destroy the gut microbial communities in cows and mice, whereas antibiotics significantly reduced the diversity and destroyed the gut microbial community structure. Additionally, no geraniol residue was detected in milk four days after treatment discontinuation, but, antibiotic residues were detected in milk at the 7th day after drug withdrawal. In vitro experiments revealed that geraniol did not induce drug resistance in the Escherichia coli strain ATCC25922 and Staphylococcus aureus strain ATCC25923 after 150 generations of culturing, while antibiotics induced resistance after 10 generations. These results suggest that geraniol has antibacterial and anti-inflammatory effects similar to antibiotics without affecting the host-microbial community structure or causing drug residues and resistance. Therefore, geraniol can be a potential substitute for antibiotics to treat mastitis or other infectious diseases and be widely used in the dairy industry.
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Affiliation(s)
- Wei Guo
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
| | - Min Qiu
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Zhonghui Pu
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
| | - Nana Long
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Min Yang
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
| | - Ke Ren
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
| | - Ruihong Ning
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Siyuan Zhang
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
| | - Fu Peng
- West China School of Pharmacy, Sichuan University, Chengdu, China
- *Correspondence: Fu Peng, ; Fenghui Sun, ; Min Dai,
| | - Fenghui Sun
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- *Correspondence: Fu Peng, ; Fenghui Sun, ; Min Dai,
| | - Min Dai
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, Chengdu Medical College, Chengdu, China
- *Correspondence: Fu Peng, ; Fenghui Sun, ; Min Dai,
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Purves RW, Souster K, West M, Huda AM, Fisher CME, Belford MW, Shurmer BO. Improved Thyreostatic Drug Detection in Animal Tissues Using Liquid Chromatography-High-Field Asymmetric Waveform Ion Mobility Spectrometry-Mass Spectrometry. J Agric Food Chem 2022; 70:4785-4791. [PMID: 35060701 DOI: 10.1021/acs.jafc.1c06937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thyreostatic drugs (thyreostats) interfere with thyroid function and have been used illegally in animals slaughtered for food. Thyreostat use leads to poorer quality meat, and the drug residues can cause adverse effects in humans. These drugs, with the exception of thiouracil, do not occur naturally and require sensitive methodologies for their detection in animal tissues. Because thyreostats are low-molecular-weight polar analytes, liquid chromatography-mass spectrometry (LC-MS) is typically used for detection and, in particular, triple quadrupole mass spectrometry with selective reaction monitoring (i.e., LC-SRM). However, LC-SRM thyreostat methods suffer from chemical background noise and endogenous interferences arising from the complex tissue matrix. An improved high-field asymmetric waveform ion mobility spectrometry interface (FAIMS Pro), which separates ions based on differential ion mobility, was combined with LC-SRM to minimize these interferences. Using the same samples and conditions, LC-FAIMS-SRM showed improvements in the signal-to-noise ratio (S/N) of up to 50 times compared with our validated LC-SRM method. In addition, wider linear ranges, including substantial improvements in the lower limit of quantification (approximately an order of magnitude for tapazole and methylthiouracil), were observed with LC-FAIMS-SRM.
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Affiliation(s)
- Randy W Purves
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
| | - Kim Souster
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
| | - Michelle West
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
| | - Azhar M Huda
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
| | - Caleb M E Fisher
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
| | - Michael W Belford
- Thermo Fisher Scientific, 355 River Oaks Parkway, San Jose, California 95134, United States
| | - Bryn O Shurmer
- Centre for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan S7N 2R3, Canada
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Luan Y, Zhao J, Han H, Shen J, Tang S, Cheng L. Toxicologic effect and transcriptome analysis for short-term orally dosed enrofloxacin combined with two veterinary antimicrobials on rat liver. Ecotoxicol Environ Saf 2021; 220:112398. [PMID: 34116333 DOI: 10.1016/j.ecoenv.2021.112398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/17/2021] [Revised: 05/08/2021] [Accepted: 05/30/2021] [Indexed: 06/12/2023]
Abstract
Presently, toxicological assessment of multiple veterinary antimicrobials has not been performed on mammals. In this study, we assessed the short-term toxicity of enrofloxacin (E) combined with colistin (C) and quinocetone (Q). Young male rats were orally dosed drug mixtures and single drugs in 14 consecutive days, each at the dose of 20, 80, and 400 mg/(kg·BW) for environmental toxicologic study. The results showed that at the high dose treatment, the combination of E + C+Q significantly decreased body intake, lymphocytes count on rats; significantly increased the values of Alanine aminotransferase (ALT), Glutamic oxaloacetic transaminase (AST) and, cholinesterase (CHE); it also got the severest histopathological changes, where sinusoidal congestion and a large number of black particles in sinusoids were observed. This means E + C+Q in the high dose groups was able to cause significant damage to the liver. Other combinations or doses did not induce significant liver damage. Transcriptome analysis was then performed on rats in high dose group for further research. For E + C and E + Q, an amount of 375 and 480 differently expressed genes were filtered out, revealing their possible underlying effect on genomes. For E + C+Q, a weighted gene co-expression network analysis was performed and 96 hub genes were identified to reveal the specific effect induced by this combination. This study indicates that joint toxicity should be taken into consideration when involving the risk assessment of these antimicrobials.
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Affiliation(s)
- Yehui Luan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Junjie Zhao
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hongfei Han
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jianzhong Shen
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shusheng Tang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Linli Cheng
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Animal-derived Food Safety Testing Technology, Beijing 100193, China; Chinese National Reference Laboratory for Veterinary Drug Residues, Beijing 100193, China.
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Raykova MR, Corrigan DK, Holdsworth M, Henriquez FL, Ward AC. Emerging Electrochemical Sensors for Real-Time Detection of Tetracyclines in Milk. Biosensors (Basel) 2021; 11:232. [PMID: 34356702 PMCID: PMC8301834 DOI: 10.3390/bios11070232] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/29/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022]
Abstract
Antimicrobial drug residues in food are strictly controlled and monitored by national laws in most territories. Tetracyclines are a major broad-spectrum antibiotic class, active against a wide range of Gram-positive and Gram-negative bacteria, and they are the leading choice for the treatment of many conditions in veterinary medicine in recent years. In dairy farms, milk from cows being treated with antibiotic drugs, such as tetracyclines, is considered unfit for human consumption. Contamination of the farm bulk tank with milk containing these residues presents a threat to confidence of supply and results in financial losses to farmers and dairy. Real-time monitoring of milk production for antimicrobial residues could reduce this risk and help to minimise the release of residues into the environment where they can cause reservoirs of antimicrobial resistance. In this article, we review the existing literature for the detection of tetracyclines in cow's milk. Firstly, the complex nature of the milk matrix is described, and the test strategies in commercial use are outlined. Following this, emerging biosensors in the low-cost biosensors field are contrasted against each other, focusing upon electrochemical biosensors. Existing commercial tests that identify antimicrobial residues within milk are largely limited to beta-lactam detection, or non-specific detection of microbial inhibition, with tests specific to tetracycline residues less prevalent. Herein, we review a number of emerging electrochemical biosensor detection strategies for tetracyclines, which have the potential to close this gap and address the industry challenges associated with existing tests.
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Affiliation(s)
- Magdalena R Raykova
- Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
| | - Damion K Corrigan
- Biomedical Engineering, University of Strathclyde, Glasgow G1 1QE, UK
| | - Morag Holdsworth
- Graham's Dairy Family, Bridge of Allan, Stirling, Glasgow FK9 4RW, UK
| | - Fiona L Henriquez
- School of Health and Life Sciences, University of the West of Scotland, Paisley PA1 2BE, UK
| | - Andrew C Ward
- Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
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Bai A, Chen A, Chen W, Luo X, Liu S, Zhang M, Liu Y, Zhang D. Study on degradation behaviour, residue distribution, and dietary risk assessment of propiconazole in celery and onion under field application. J Sci Food Agric 2021; 101:1998-2005. [PMID: 32949153 DOI: 10.1002/jsfa.10817] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 06/29/2020] [Revised: 08/25/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Propiconazole is widely used to control fungal diseases in field crops, including celery and onion. The potential risk to the environment and human health has aroused much public concern. Therefore, it is significant to investigate the degradation behaviour, residue distribution, and dietary risk assessment of propiconazole in celery and onion. RESULTS A sensitive analytical method for determination of propiconazole residue in celery and onion was established and validated through high-performance liquid chromatography tandem mass spectrometry. The average recovery rate of propiconazole ranged from 85.7% to 101.8%, with a relative standard deviation of 2.1-6.3%. For the dissipation kinetics, the data showed that propiconazole in celery and onion was degraded, with half-lives of 6.1-6.2 days and 8.7-8.8 days respectively. In the terminal residue experiments, the residues of propiconazole were below 4.66 mg kg-1 in celery after application two or three times and were below 0.029 mg kg-1 in onion after application of three or four times with an interval of 14 days under the designed dosages. The chronic and acute dietary exposure assessments for propiconazole were valued by risk quotient, with all values being lower than 100%. CONCLUSION Propiconazole in celery and onion was rapidly degraded following first-order kinetics models. The dietary risk of propiconazole through celery or onion was negligible to consumers. The study not only offers a valuable reference for reasonable usage of propiconazole on celery and onion, but also facilitates the establishment of maximum residue limits in China. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Aijuan Bai
- Longping Branch, Graduate School of Hunan University, Changsha, 410125, China
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Ang Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Wuying Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Xiangwen Luo
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Shaowen Liu
- Hunan Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Min Zhang
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Yong Liu
- Longping Branch, Graduate School of Hunan University, Changsha, 410125, China
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
| | - Deyong Zhang
- Longping Branch, Graduate School of Hunan University, Changsha, 410125, China
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, China
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Pokharel S, Shrestha P, Adhikari B. Antimicrobial use in food animals and human health: time to implement 'One Health' approach. Antimicrob Resist Infect Control 2020; 9:181. [PMID: 33160396 PMCID: PMC7648983 DOI: 10.1186/s13756-020-00847-x] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/29/2020] [Indexed: 01/21/2023] Open
Abstract
The use of antimicrobials in animals for growth promotion and infection prevention significantly contributes to the development of antimicrobial resistance (AMR), a growing public health threat. While the World Health Organization (WHO), the United Nations (UN) and the European Union (EU) have taken steps towards reducing and restricting the use of antimicrobials in animals, initiatives are insufficient in developing countries where the demands for food animals continue to rise over the years. The inter-sectoral acknowledgment of inextricable link between animal health, human health and the environment (One Health approach) is critical. Concerted and collaborative efforts among all the stakeholders are essential to deal with this complex problem of resistance.
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Affiliation(s)
- Sunil Pokharel
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Priyanka Shrestha
- International Diagnostics Centre, London School of Hygiene & Tropical Medicine, London, UK
| | - Bipin Adhikari
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
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Hu Y, Wang J, Shen Y. Enhanced performance of anaerobic digestion of cephalosporin C fermentation residues by gamma irradiation-induced pretreatment. J Hazard Mater 2020; 384:121335. [PMID: 31590081 DOI: 10.1016/j.jhazmat.2019.121335] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 08/22/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Antibiotic fermentation residues is a hazardous waste due to the existence of residual antibiotics and antibiotic resistance genes (ARGs), probably leading to the induction and spread of antibiotic resistant bacteria (ARB) in the environment, which could pose potential harm to the ecosystem and human health. It is urgent to develop an effective technology to remove the residual antibiotics and ARGs. In this study, the anaerobic digestion combined with gamma irradiation was applied for the disposal and utilization of cephalosporin C fermentation residues. The experimental results showed that the antibacterial activities of cephalosporin C against Staphylococcus aureus were significantly decreased after anaerobic digestion. The removal of tolC, a multidrug resistant gene, was improved up to 100% by the combination of gamma irradiation and anaerobic digestion compared to solely anaerobic digestion process, which may be due to the changes of microbial community structures induced by gamma irradiation.
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Affiliation(s)
- Yuming Hu
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing, 100084, PR China
| | - Jianlong Wang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing, 100084, PR China; Beijing Key Laboratory of Radioactive Wastes Treatment, Tsinghua University, Beijing, 100084, PR China.
| | - Yunpeng Shen
- State Environmental Protection Engineering Center for Harmless Treatment and Resource Utilization of Antibiotic Residues, Yili Chuanning Biotechnology Company, Ltd., Xinjiang, 835007, PR China; School of Economics and Management, Center for Innovation Management Research, Xinjiang University, Xinjiang 830047, PR China
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11
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Martin KL, Clapham MO, Davis JL, Baynes RE, Lin Z, Vickroy TW, Riviere JE, Tell LA. Extralabel drug use in small ruminants. J Am Vet Med Assoc 2019; 253:1001-1009. [PMID: 30272520 DOI: 10.2460/javma.253.8.1001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Oloso NO, Fagbo S, Garbati M, Olonitola SO, Awosanya EJ, Aworh MK, Adamu H, Odetokun IA, Fasina FO. Antimicrobial Resistance in Food Animals and the Environment in Nigeria: A Review. Int J Environ Res Public Health 2018; 15:ijerph15061284. [PMID: 29914203 PMCID: PMC6025306 DOI: 10.3390/ijerph15061284] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/14/2018] [Accepted: 06/14/2018] [Indexed: 02/05/2023]
Abstract
Antimicrobial resistance (AMR) has emerged as a global health threat, which has elicited a high-level political declaration at the United Nations General Assembly, 2016. In response, member countries agreed to pay greater attention to the surveillance and implementation of antimicrobial stewardship. The Nigeria Centre for Disease Control called for a review of AMR in Nigeria using a “One Health approach”. As anecdotal evidence suggests that food animal health and production rely heavily on antimicrobials, it becomes imperative to understand AMR trends in food animals and the environment. We reviewed previous studies to curate data and evaluate the contributions of food animals and the environment (2000⁻2016) to the AMR burden in Nigeria using a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flowchart focused on three areas: Antimicrobial resistance, residues, and antiseptics studies. Only one of the 48 antimicrobial studies did not report multidrug resistance. At least 18 bacterial spp. were found to be resistant to various locally available antimicrobials. All 16 residue studies reported high levels of drug residues either in the form of prevalence or concentration above the recommended international limit. Fourteen different “resistotypes” were found in some commonly used antiseptics. High levels of residues and AMR were found in food animals destined for the human food chain. High levels of residues and antimicrobials discharged into environments sustain the AMR pool. These had evolved into potential public health challenges that need attention. These findings constitute public health threats for Nigeria’s teeming population and require attention.
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Affiliation(s)
- Nurudeen Olalekan Oloso
- Department of Production Animal Studies (Epidemiology section), Faculty of Veterinary Science, Onderstepoort Campus 0110, University of Pretoria, 0110, South Africa.
| | - Shamsudeen Fagbo
- Public Health Agency, Ministry of Health, Riyadh, 11176, Saudi Arabia.
| | - Musa Garbati
- Department of Medicine, Infectious Diseases and Immunology Unit, University of Maiduguri, PMB 1069, Maiduguri 600230, Borno State, Nigeria.
| | - Steve O Olonitola
- Department of Microbiology, Faculty of Life Sciences, Ahmadu Bello University, Zaria 810241, Nigeria.
| | - Emmanuel Jolaoluwa Awosanya
- Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan 200284, Nigeria.
| | - Mabel Kamweli Aworh
- Veterinary Drugs/Animal Welfare Branch, Quality Assurance and Standards Division, Department of Veterinary & Pests Control Services, Federal Min. of Agric. & Rural Dev. F.C.D.A, Area 11, Garki, Abuja 900001, Nigeria.
| | - Helen Adamu
- Center for Clinical Care and Clinical Research, Plot 784, By Glimor Engineering, Off Life camp, Gwarimpa Express Way, Jabi, Abuja 240102, Nigeria.
| | - Ismail Ayoade Odetokun
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ilorin, Ilorin 240272, Kwara State, Nigeria.
| | - Folorunso Oludayo Fasina
- Department of Production Animal Studies (Epidemiology section), Faculty of Veterinary Science, Onderstepoort Campus 0110, University of Pretoria, 0110, South Africa.
- Emergency Centre for Transboundary Diseases (ECTAD-FAO), Food and Agricultural Organization of the United Nation, Dar es Salaam 0701072, Tanzania.
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Majdinasab M, Yaqub M, Rahim A, Catanante G, Hayat A, Marty JL. An Overview on Recent Progress in Electrochemical Biosensors for Antimicrobial Drug Residues in Animal-Derived Food. Sensors (Basel) 2017; 17:E1947. [PMID: 28837093 PMCID: PMC5621119 DOI: 10.3390/s17091947] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 08/09/2017] [Accepted: 08/22/2017] [Indexed: 12/21/2022]
Abstract
Anti-microbial drugs are widely employed for the treatment and cure of diseases in animals, promotion of animal growth, and feed efficiency. However, the scientific literature has indicated the possible presence of antimicrobial drug residues in animal-derived food, making it one of the key public concerns for food safety. Therefore, it is highly desirable to design fast and accurate methodologies to monitor antimicrobial drug residues in animal-derived food. Legislation is in place in many countries to ensure antimicrobial drug residue quantities are less than the maximum residue limits (MRL) defined on the basis of food safety. In this context, the recent years have witnessed a special interest in the field of electrochemical biosensors for food safety, based on their unique analytical features. This review article is focused on the recent progress in the domain of electrochemical biosensors to monitor antimicrobial drug residues in animal-derived food.
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Affiliation(s)
- Marjan Majdinasab
- Department of Food Science & Technology, Shiraz University, Shiraz 71441-65186, Iran.
| | - Mustansara Yaqub
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Abdur Rahim
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Gaelle Catanante
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan CEDEX 66860, France.
| | - Akhtar Hayat
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Jean Louis Marty
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan CEDEX 66860, France.
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14
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de Lima AL, Barreto F, Rau RB, da Silva GR, Lara LJC, de Figueiredo TC, de Assis DCS, Cançado SDV. Determination of the residue levels of nicarbazin and combination nicarbazin-narasin in broiler chickens after oral administration. PLoS One 2017; 12:e0181755. [PMID: 28750013 PMCID: PMC5531545 DOI: 10.1371/journal.pone.0181755] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 07/05/2017] [Indexed: 11/19/2022] Open
Abstract
The depletion times of the anticoccidial nicarbazin administered individually and of nicarbazin and narasin administered in combination were evaluated by determining the presence and levels of 4,4'-dinitrocarbanilide (DNC), the marker residue for nicarbazin, and narasin residues in the muscle tissues of broiler chickens subjected to a pharmacological treatment. A high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was used. The results showed the presence of all anticoccidial residues; however, the DNC levels were higher when the nicarbazin was administered individually than when it was used in association with narasin throughout the experimental period. After six days of withdrawal, the DNC level following nicarbazin administration alone was lower than the maximum residue level (MRL) of 200 μg kg-1. However, when the nicarbazin was co-administered with narasin, the concentrations of DNC were lower than the MRL after four days of withdrawal. These results may be justified because the dosage of nicarbazin, when administrated individually, is greater than when it is used in combination with narasin. The levels of narasin were lower than the MRL of 15 μg kg-1 throughout the evaluation period. It was concluded that nicarbazin is rapidly metabolized from the broiler muscles up to six days of withdrawal since the DNC levels were lower than the maximum residue level (MRL) and the concentrations of narasin were lower than the MRL throughout the evaluation period.
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Affiliation(s)
- Arina Lopes de Lima
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Fabiano Barreto
- Laboratório Nacional Agropecuário (LANAGRO-RS), Ministério da Agricultura, Pecuária e Abastecimento, Porto Alegre, Rio Grande do Sul, Brazil
| | - Renata Batista Rau
- Laboratório Nacional Agropecuário (LANAGRO-RS), Ministério da Agricultura, Pecuária e Abastecimento, Porto Alegre, Rio Grande do Sul, Brazil
| | - Guilherme Resende da Silva
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Leonardo José Camargos Lara
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Tadeu Chaves de Figueiredo
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Débora Cristina Sampaio de Assis
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Silvana de Vasconcelos Cançado
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
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Ahmed MB, Zhou JL, Ngo HH, Guo W, Thomaidis NS, Xu J. Progress in the biological and chemical treatment technologies for emerging contaminant removal from wastewater: A critical review. J Hazard Mater 2017; 323:274-298. [PMID: 27143286 DOI: 10.1016/j.jhazmat.2016.04.045] [Citation(s) in RCA: 443] [Impact Index Per Article: 63.3] [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: 01/27/2016] [Revised: 03/15/2016] [Accepted: 04/18/2016] [Indexed: 05/07/2023]
Abstract
This review focuses on the removal of emerging contaminants (ECs) by biological, chemical and hybrid technologies in effluents from wastewater treatment plants (WWTPs). Results showed that endocrine disruption chemicals (EDCs) were better removed by membrane bioreactor (MBR), activated sludge and aeration processes among different biological processes. Surfactants, EDCs and personal care products (PCPs) can be well removed by activated sludge process. Pesticides and pharmaceuticals showed good removal efficiencies by biological activated carbon. Microalgae treatment processes can remove almost all types of ECs to some extent. Other biological processes were found less effective in ECs removal from wastewater. Chemical oxidation processes such as ozonation/H2O2, UV photolysis/H2O2 and photo-Fenton processes can successfully remove up to 100% of pesticides, beta blockers and pharmaceuticals, while EDCs can be better removed by ozonation and UV photocatalysis. Fenton process was found less effective in the removal of any types of ECs. A hybrid system based on ozonation followed by biological activated carbon was found highly efficient in the removal of pesticides, beta blockers and pharmaceuticals. A hybrid ozonation-ultrasound system can remove up to 100% of many pharmaceuticals. Future research directions to enhance the removal of ECs have been elaborated.
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Affiliation(s)
- Mohammad Boshir Ahmed
- School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia
| | - John L Zhou
- School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia.
| | - Huu Hao Ngo
- School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia
| | - Wenshan Guo
- School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia
| | - Nikolaos S Thomaidis
- Department of Chemistry, University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Jiang Xu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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16
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Syranidou E, Christofilopoulos S, Politi M, Weyens N, Venieri D, Vangronsveld J, Kalogerakis N. Bisphenol-A removal by the halophyte Juncus acutus in a phytoremediation pilot: Characterization and potential role of the endophytic community. J Hazard Mater 2017; 323:350-358. [PMID: 27321745 DOI: 10.1016/j.jhazmat.2016.05.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 01/29/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 06/06/2023]
Abstract
A phytoremediation pilot emulating a shallow aquifer planted with Juncus acutus showed to be effective for remediating Bisphenol-A (BPA) contaminated groundwater. Biostimulation with root exudates, low molecular weight organic acids, of J. acutus did not improve BPA-degradation rates. Furthermore, the endophytic bacterial community of J. acutus was isolated and characterized. Many strains were found to possess increased tolerance to metals such as Zn, Ni, Pb and Cd. Moreover, several endophytic bacterial strains tolerated and even used BPA and/or two antibiotics (ciprofloxacin and sulfamethoxazole) as a sole carbon source. Our results demonstrate that the cultivable bacterial endophytic community of J. acutus is able to use organic contaminants as carbon sources, tolerates metals and is equipped with plant-growth promoting traits. Therefore, J. acutus has potential to be exploited in constructed wetlands when co-contamination is one of the restricting factors.
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Affiliation(s)
- Evdokia Syranidou
- Technical University of Crete, School of Environmental Engineering, Polytechneioupolis, Chania 73100, Greece; Hasselt University, Centre for Environmental Sciences, Agoralaan, Building D, B-3590 Diepenbeek, Belgium
| | - Stavros Christofilopoulos
- Technical University of Crete, School of Environmental Engineering, Polytechneioupolis, Chania 73100, Greece
| | - Maria Politi
- Technical University of Crete, School of Environmental Engineering, Polytechneioupolis, Chania 73100, Greece
| | - Nele Weyens
- Hasselt University, Centre for Environmental Sciences, Agoralaan, Building D, B-3590 Diepenbeek, Belgium
| | - Danae Venieri
- Technical University of Crete, School of Environmental Engineering, Polytechneioupolis, Chania 73100, Greece
| | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, Agoralaan, Building D, B-3590 Diepenbeek, Belgium
| | - Nicolas Kalogerakis
- Technical University of Crete, School of Environmental Engineering, Polytechneioupolis, Chania 73100, Greece.
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17
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Kissell LW, Brinson PD, Gehring R, Tell LA, Wetzlich SE, Baynes RE, Riviere JE, Smith GW. Pharmacokinetics and tissue elimination of flunixin in veal calves. Am J Vet Res 2017; 77:634-40. [PMID: 27227502 DOI: 10.2460/ajvr.77.6.634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To describe plasma pharmacokinetic parameters and tissue elimination of flunixin in veal calves. ANIMALS 20 unweaned Holstein calves between 3 and 6 weeks old. PROCEDURES Each calf received flunixin (2.2 mg/kg, IV, q 24 h) for 3 days. Blood samples were collected from all calves before the first dose and at predetermined times after the first and last doses. Beginning 24 hours after injection of the last dose, 4 calves were euthanized each day for 5 days. Plasma and tissue samples were analyzed by ultraperformance liquid chromatography. Pharmacokinetic parameters were calculated by compartmental and noncompartmental methods. RESULTS Mean ± SD plasma flunixin elimination half-life, residence time, and clearance were 1.32 ± 0.94 hours, 12.54 ± 10.96 hours, and 64.6 ± 40.7 mL/h/kg, respectively. Mean hepatic and muscle flunixin concentrations decreased to below FDA-established tolerance limits (0.125 and 0.025 μg/mL, respectively) for adult cattle by 3 and 2 days, respectively, after injection of the last dose of flunixin. Detectable flunixin concentrations were present in both the liver and muscle for at least 5 days after injection of the last dose. CONCLUSIONS AND CLINICAL RELEVANCE The labeled slaughter withdrawal interval for flunixin in adult cattle is 4 days. Because administration of flunixin to veal calves represents extralabel drug use, any detectable flunixin concentrations in edible tissues are considered a violation. Results indicated that a slaughter withdrawal interval of several weeks may be necessary to ensure that violative tissue residues of flunixin are not detected in veal calves treated with that drug.
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18
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Blanco G, Junza A, Barrón D. Food safety in scavenger conservation: Diet-associated exposure to livestock pharmaceuticals and opportunist mycoses in threatened Cinereous and Egyptian vultures. Ecotoxicol Environ Saf 2017; 135:292-301. [PMID: 27750097 DOI: 10.1016/j.ecoenv.2016.10.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 07/26/2016] [Revised: 10/04/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Pharmaceuticals from veterinary treatments may enter terrestrial food webs when medicated livestock are available to wildlife in supplementary feeding stations aimed at the conservation of endangered scavengers. Here, we hypothesized that the exposure risk to livestock fluoroquinolones, as indicators of pharmaceutical burden in food, is related to the variable reliance of scavengers on domestic versus wild animal carcasses. Since the misuse of broad-spectrum antibiotics is a major predisposing factor for opportunistic mycoses, we evaluated disease signs potentially associated with diet-dependent drug exposure in nestlings of two threatened vultures. A greater occurrence (100%, n=14) and concentration of fluoroquinolones (mean±SD=73.0±27.5µgL-1, range=33.2-132.7), mostly enrofloxacin, were found in Cinereous vultures, Aegypius monachus, due to their greater dependence on livestock carcasses than Egyptian vultures, Neophron percnopterus (fluoroquinolones occurrence: 44%, n=16, concentration: 37.9±16.6µgL-1, range=11.5-55.9), which rely much more on carcasses of wild animals (42% of remains vs. 23% in the cinereous vulture). The chaotic, chronic and pulsed ingestion of these drugs throughout nestling development is proposed as one of the most plausible explanations for the high occurrence and intensity of oral Candida-like lesions in nestling vultures. The high occurrence of fluoroquinolone residues and disease hindered the probing of a cause-effect relationship between both factors in individual vultures. This relationship could be evaluated through a population-based approach by sampling vultures not exposed to these drugs. The high dependence of vultures on domestic animals today compared to past decades and the growing intensification of livestock farming, imply an expected increase in the impact of pharmaceuticals on scavenger populations. This requires further evaluation due to potential consequences in biodiversity conservation and environmental health. We encourage the prioritization of efforts to promote the use of less medicated free-ranging livestock carcasses left in the countryside, rather than stabled stocks made available in vulture restaurants. Additionally, attention should be paid to the population recovery of wild species that dominated scavenger diets in the past.
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Affiliation(s)
- Guillermo Blanco
- Department of Evolutionary Ecology, National Museum of Natural Sciences, Spanish Research Council (CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain.
| | - Alexandra Junza
- Department of Analytical Chemistry. University of Barcelona, Avda. Diagonal 647, 08028 Barcelona, Spain; Department of Nutrition, Food Science and Gastronomy, Food and Nutrition Torribera Campus, University of Barcelona, Avda. Prat de la Riba, 171, 08921 Sta. Coloma de Gramenet, Barcelona, Spain
| | - Dolores Barrón
- Department of Nutrition, Food Science and Gastronomy, Food and Nutrition Torribera Campus, University of Barcelona, Avda. Prat de la Riba, 171, 08921 Sta. Coloma de Gramenet, Barcelona, Spain
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McCall AK, Scheidegger A, Madry MM, Steuer AE, Weissbrodt DG, Vanrolleghem PA, Kraemer T, Morgenroth E, Ort C. Influence of Different Sewer Biofilms on Transformation Rates of Drugs. Environ Sci Technol 2016; 50:13351-13360. [PMID: 27993059 DOI: 10.1021/acs.est.6b04200] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To estimate drug consumption more reliably, wastewater-based epidemiology would benefit from a better understanding of drug residue stability during in-sewer transport. We conducted batch experiments with real, fresh wastewater and sewer biofilms. Experimental conditions mimic small to medium-sized gravity sewers with a relevant ratio of biofilm surface area to wastewater volume (33 m2 m-3). The influences of biological, chemical, and physical processes on the transformation of 30 illicit drug and pharmaceutical residues were quantified. Rates varied among locations and over time. Three substances were not stable-that is, >20% transformation, mainly due to biological processes-at least for one type of tested biofilm for a residence time ≤2 h: amphetamine, 6-acetylcodeine, and 6-monoacetylmorphine. Cocaine, ecgonine methyl ester, norcocaine, cocaethylene, and mephedrone were mainly transformed by chemical hydrolysis and, hence, also unstable in sewers. In contrast, ketamine, norketamine, O-desmethyltramadol, diclofenac, carbamazepine, and methoxetamine were not substantially affected by in-sewer processes under all tested conditions and residence times up to 12 h. Our transformation rates include careful quantification of uncertainty and can be used to identify situations in which specific compounds are not stable. This will improve accuracy and uncertainty estimates of drug consumption when applied to the back-calculation.
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Affiliation(s)
- Ann-Kathrin McCall
- Swiss Federal Institute of Aquatic Science and Technology (Eawag) , 8600 Dübendorf, Switzerland
| | - Andreas Scheidegger
- Swiss Federal Institute of Aquatic Science and Technology (Eawag) , 8600 Dübendorf, Switzerland
| | - Milena M Madry
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich , 8057 Zurich, Switzerland
| | - Andrea E Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich , 8057 Zurich, Switzerland
| | - David G Weissbrodt
- Swiss Federal Institute of Aquatic Science and Technology (Eawag) , 8600 Dübendorf, Switzerland
- Institute of Environmental Engineering, ETH Zürich , 8093 Zürich, Switzerland
- Department of Biotechnology, Delft University of Technology , 2628 BC Delft, The Netherlands
- Department of Chemistry and Bioscience, Aalborg University , 9220 Aalborg, Denmark
| | - Peter A Vanrolleghem
- ModelEAU, Département de Génie Civil et de Génie des Eaux, Université Laval , Pavillon Pouliot, 1065 av. de la Médecine, Québec City, Québec G1 V 0A6, Canada
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich , 8057 Zurich, Switzerland
| | - Eberhard Morgenroth
- Swiss Federal Institute of Aquatic Science and Technology (Eawag) , 8600 Dübendorf, Switzerland
- Institute of Environmental Engineering, ETH Zürich , 8093 Zürich, Switzerland
| | - Christoph Ort
- Swiss Federal Institute of Aquatic Science and Technology (Eawag) , 8600 Dübendorf, Switzerland
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Marmulak T, Tell LA, Gehring R, Baynes RE, Vickroy TW, Riviere JE. Egg residue considerations during the treatment of backyard poultry. J Am Vet Med Assoc 2016; 247:1388-95. [PMID: 26642132 DOI: 10.2460/javma.247.12.1388] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this digest was to provide US veterinarians guidance on the responsible treatment of backyard poultry flocks. The treatment of backyard poultry can be a daunting task for veterinarians because only limited resources are available; however, it is likely to become an increasingly common task owing to the increasing popularity of backyard poultry throughout the United States, especially in urban and suburban areas. Although backyard poultry flock owners may consider their birds pets, the FDA considers them food-producing animals, and veterinarians should follow all regulations that pertain to food-producing animals when administering or prescribing drugs to those birds. The lack of FDA-approved drugs for use in laying hens frequently necessitates the use of drugs in an extralabel manner in backyard poultry. Unfortunately, information regarding the depletion of drug residues in eggs from hens treated with various drugs in an extralabel manner is sparse or lacking, and veterinarians need to be cognizant of this issue, especially when the eggs from treated hens are intended for human consumption.
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21
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Jia R, Ma Q, Fan Y, Ji C, Zhang J, Liu T, Zhao L. The toxic effects of combined aflatoxins and zearalenone in naturally contaminated diets on laying performance, egg quality and mycotoxins residues in eggs of layers and the protective effect of Bacillus subtilis biodegradation product. Food Chem Toxicol 2016; 90:142-50. [PMID: 26891816 DOI: 10.1016/j.fct.2016.02.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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] [Received: 11/30/2015] [Revised: 02/07/2016] [Accepted: 02/10/2016] [Indexed: 11/18/2022]
Abstract
The toxic effect of aflatoxins (AF) and zearalenone (ZEA) and their combination on laying performance, egg quality and toxins residues in eggs, as well as the efficacy of Bacillus subtilis biodegradation product (BDP) for ameliorating these effects in layers were evaluated. Layers were submitted to a two phase experiment. The first phase was an intoxication period (18-23 wk) with birds fed 7 (3 × 2 + 1) diets (3 treatments with mycotoxins: AF (123.0 μg/kg), ZEA (260.2 μg/kg), or AF + ZEA (123.0 + 260.2 μg/kg); 2 treatments with or without BDP (1000 g/t); and a control group contained no toxins nor BDP). The next phase was a recovery period (24-29 wk) in which birds were fed a toxin-free diet. In the intoxication period, AF and AF + ZEA groups exhibited lower egg production, feed intake and shell thickness, and higher AFB1, AFB2 and AFM1 residues as compared with the control group. In addition, AF and ZEA exerted synergistic effects on egg production and feed intake. Moreover, AF alone or combined with ZEA had a continuous toxic effect on laying performance in the recovery phase. Addition of BDP offset these negative effects, showing that BDP has a protective effect on layers fed contaminated diets.
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Affiliation(s)
- Ru Jia
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yu Fan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jianyun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Tao Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Shahidi D, Moheb A, Abbas R, Larouk S, Roy R, Azzouz A. Total mineralization of sulfamethoxazole and aromatic pollutants through Fe2+-montmorillonite catalyzed ozonation. J Hazard Mater 2015; 298:338-350. [PMID: 26118641 DOI: 10.1016/j.jhazmat.2015.05.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/06/2015] [Accepted: 05/17/2015] [Indexed: 06/04/2023]
Abstract
The catalytic activity and selectivity of montmorillonite exchanged with Na(+), Fe(2+), Co(2+), Ni(2+) and Cu(2+) cations were comparatively investigated in the ozonation of sulfamethoxazole (SMX). Chlorobenzene, benzoic acid, 4-nitrobenzoic acid, 3-hydroxybenzaldehyde, 4-nitrophenol and phenol were used as probe molecules having structural similarity with SMX oxidation intermediates. UV-vis spectrophometry and chemical oxygen demand (COD) measurements showed that Fe(II)-Mt and, to a lesser extent, Co(II)-Mt produce total mineralization of all organic substrates in less than 40 min. Combined HPLC-mass spectrometry revealed a reverse proportionality between the degradation time and molecular size of the organic substrates. Oxalic acid was recognized as a common bottleneck in the ozonation of any organic substrates. Ozonation initially obeyed a first order kinetics, but adsorption took place after 3-5 min, inducing changes in the mechanisms pathways. These findings may be useful for tailoring optimum oxidative treatment of waters without accumulation of hazardous derivatives.
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Affiliation(s)
- Dariush Shahidi
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada
| | - Amira Moheb
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada
| | - Rabah Abbas
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada
| | - Safa Larouk
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada; Laboratory of Sciences and Technologies of Environment, University of Constantine-1, Algeria
| | - René Roy
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada
| | - Abdelkrim Azzouz
- Nanoqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-ville, Québec H3C 3P8, Canada.
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Rodríguez-Anaya A, Octavio-Aguilar P, Gaytán-Oyarzún JC. [Not Available]. Salud Publica Mex 2015; 57:365-366. [PMID: 26544995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Affiliation(s)
- Armando Rodríguez-Anaya
- Laboratorio de Genética, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México,
| | - Pablo Octavio-Aguilar
- Laboratorio de Genética, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México,
| | - Juan Carlos Gaytán-Oyarzún
- Laboratorio de Genética, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México,
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Lin CJ, Liao SJ, Kao LC, Liou SYH. Photoelectrocatalytic activity of a hydrothermally grown branched Zno nanorod-array electrode for paracetamol degradation. J Hazard Mater 2015; 291:9-17. [PMID: 25748997 DOI: 10.1016/j.jhazmat.2015.02.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 09/24/2014] [Revised: 01/30/2015] [Accepted: 02/12/2015] [Indexed: 06/04/2023]
Abstract
Hierarchical branched ZnO nanorod (B-ZnR) arrays as an electrode for efficient photoelectrocatalytic degradation of paracetamol were grown on fluorine-doped tin oxide substrates using a solution route. The morphologic and structural studies show the ZnO trunks are single-crystalline hexagonal wurtzite ZnO with a [0001] growth direction and are densely covered by c-axis-oriented ZnO branches. The obvious enhancement in photocurrent response of the B-ZnR electrode was obtained than that in the ZnO nanoparticle (ZnO NP) electrode. For the photoelectrocatalytic degradation of paracetamol in 20 h, the conversion fraction of the drug increased from 32% over ZnO NP electrode to 62% over B-ZnR arrays with about 3-fold increase in initial reaction rate. The light intensity-dependent photoelectrocatalytic experiment indicated that the superior performance over the B-ZnR electrode was mainly ascribed to the increased specific surface area without significantly sacrificing the charge transport and pollutant diffusion efficiencies. Two aromatic intermediate compounds were observed and eventually converted into harmless carboxylic acids and ammonia. Hierarchical tree-like ZnO arrays can be considered effective alternatives to improve photoelectro degradation rates without the need for expensive additives.
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Affiliation(s)
- Chin Jung Lin
- Department of Environmental Engineering, National Ilan University, 1, Sec. 1, Shen-Lung Road, I-Lan 260, Taiwan
| | - Shu-Jun Liao
- Department of Environmental Engineering, National Ilan University, 1, Sec. 1, Shen-Lung Road, I-Lan 260, Taiwan
| | - Li-Cheng Kao
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan
| | - Sofia Ya Hsuan Liou
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan.
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25
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Saucier C, Adebayo MA, Lima EC, Cataluña R, Thue PS, Prola LDT, Puchana-Rosero MJ, Machado FM, Pavan FA, Dotto GL. Microwave-assisted activated carbon from cocoa shell as adsorbent for removal of sodium diclofenac and nimesulide from aqueous effluents. J Hazard Mater 2015; 289:18-27. [PMID: 25702636 DOI: 10.1016/j.jhazmat.2015.02.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [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: 11/11/2014] [Revised: 02/04/2015] [Accepted: 02/08/2015] [Indexed: 05/13/2023]
Abstract
Microwave-induced chemical activation process was used to prepare an activated carbon from cocoa shell for efficient removal of two anti-inflammatories, sodium diclofenac (DFC) and nimesulide (NM), from aqueous solutions. A paste was obtained from a mixture of cocoa shell and inorganic components; with a ratio of inorganic: organic of 1 (CSC-1.0). The mixture was pyrolyzed in a microwave oven in less than 10 min. The CSC-1.0 was acidified with a 6 mol L(-1) HCl under reflux to produce MWCS-1.0. The CSC-1.0 and MWCS-1.0 were characterized using FTIR, SEM, N2 adsorption/desorption curves, X-ray diffraction, and point of zero charge (pHpzc). Experimental variables such as initial pH of the adsorbate solutions and contact time were optimized for adsorptive characteristics of MWCS-1.0. The optimum pH for removal of anti-inflammatories ranged between 7.0 and 8.0. The kinetic of adsorption was investigated using general order, pseudo first-order and pseu do-second order kinetic models. The maximum amounts of DCF and NM adsorbed onto MWCS-1.0 at 25 °C are 63.47 and 74.81 mg g(-1), respectively. The adsorbent was tested on two simulated hospital effluents. MWCS-1.0 is capable of efficient removal of DCF and NM from a medium that contains high sugar and salt concentrations.
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Affiliation(s)
- Caroline Saucier
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Matthew A Adebayo
- Department of Chemical Sciences, Ajayi Crowther University, Oyo, Oyo State, Nigeria
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil.
| | - Renato Cataluña
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Pascal S Thue
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil; Department of Applied Chemistry, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Lizie D T Prola
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - M J Puchana-Rosero
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Fernando M Machado
- Technology Development Center, Federal University of Pelotas (UFPEL), Pelotas, Brazil
| | - Flavio A Pavan
- Institute of Chemistry, Federal University of Pampa (UNIPAMPA), Bagé, RS, Brazil
| | - G L Dotto
- Chemical Engineering Department, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
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Andersen WC, Casey CR, Schneider MJ, Turnipseed SB. Expansion of the Scope of AOAC First Action Method 2012.25--Single-Laboratory Validation of Triphenylmethane Dye and Leuco Metabolite Analysis in Shrimp, Tilapia, Catfish, and Salmon by LC-MS/MS. J AOAC Int 2015; 98:636-648. [PMID: 26024871 DOI: 10.5740/jaoacint.14-264] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Prior to conducting a collaborative study of AOAC First Action 2012.25 LC-MS/MS analytical method for the determination of residues of three triphenylmethane dyes (malachite green, crystal violet, and brilliant green) and their metabolites (leucomalachite green and leucocrystal violet) in seafood, a single-laboratory validation of method 2012.25 was performed to expand the scope of the method to other seafood matrixes including salmon, catfish, tilapia, and shrimp. The validation included the analysis of fortified and incurred residues over multiple weeks to assess analyte stability in matrix at -80°C, a comparison of calibration methods over the range 0.25 to 4 μg/kg, study of matrix effects for analyte quantification, and qualitative identification of targeted analytes. Method accuracy ranged from 88 to 112% with 13% RSD or less for samples fortified at 0.5, 1.0, and 2.0 μg/kg. Analyte identification and determination limits were determined by procedures recommended both by the U. S. Food and Drug Administration and the European Commission. Method detection limits and decision limits ranged from 0.05 to 0.24 μg/kg and 0.08 to 0.54 μg/kg, respectively. AOAC First Action Method 2012.25 with an extracted matrix calibration curve and internal standard correction is suitable for the determination of triphenylmethane dyes and leuco metabolites in salmon, catfish, tilapia, and shrimp by LC-MS/MS at a residue determination level of 0.5 μg/kg or below.
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Affiliation(s)
- Wendy C Andersen
- U.S. Food and Drug Administration, Office of Regulatory Affairs, Animal Drugs Research Center, Denver Federal Center Bldg 20, W. 6th Ave and Kipling St, Denver, CO 80225, USA
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Mexican horse meat banned by EU. J Am Vet Med Assoc 2015; 246:389-90. [PMID: 25796648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Cheng VCC, Wong SCY, Ho PL, Yuen KY. Strategic measures for the control of surging antimicrobial resistance in Hong Kong and mainland of China. Emerg Microbes Infect 2015; 4:e8. [PMID: 26038766 PMCID: PMC4345289 DOI: 10.1038/emi.2015.8] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/30/2014] [Accepted: 12/30/2014] [Indexed: 01/23/2023]
Abstract
Antimicrobial-resistant bacteria are either highly prevalent or increasing rapidly in Hong Kong and China. Treatment options for these bacteria are generally limited, less effective and more expensive. The emergence and dynamics of antimicrobial resistance genes in bacteria circulating between animals, the environment and humans are not entirely known. Nonetheless, selective pressure by antibiotics on the microbiomes of animal and human, and their associated environments (especially farms and healthcare institutions), sewage systems and soil are likely to confer survival advantages upon bacteria with antimicrobial-resistance genes, which may be further disseminated through plasmids or transposons with integrons. Therefore, antibiotic use must be tightly regulated to eliminate such selective pressure, including the illegalization of antibiotics as growth promoters in animal feed and regulation of antibiotic use in veterinary practice and human medicine. Heightened awareness of infection control measures to reduce the risk of acquiring resistant bacteria is essential, especially during antimicrobial use or institutionalization in healthcare facilities. The transmission cycle must be interrupted by proper hand hygiene, environmental cleaning, avoidance of undercooked or raw food and compliance with infection control measures by healthcare workers, visitors and patients, especially during treatment with antibiotics. In addition to these routine measures, proactive microbiological screening of hospitalized patients with risk factors for carrying resistant bacteria, including history of travel to endemic countries, transfer from other hospitals, and prolonged hospitalization; directly observed hand hygiene before oral intake of drugs, food and drinks; and targeted disinfection of high-touch or mutual-touch items, such as bed rails and bed curtains, are important. Transparency of surveillance data from each institute for public scrutiny provides an incentive for controlling antimicrobial resistance in healthcare settings at an administrative level.
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Affiliation(s)
- Vincent C C Cheng
- Department of Microbiology, Queen Mary Hospital , Hong Kong, China ; Infection Control Team, Queen Mary Hospital , Hong Kong, China
| | - Sally C Y Wong
- Department of Microbiology, Queen Mary Hospital , Hong Kong, China
| | - Pak-Leung Ho
- Department of Microbiology, Queen Mary Hospital , Hong Kong, China
| | - Kwok-Yung Yuen
- Department of Microbiology, Queen Mary Hospital, Hong Kong, China ; Department of Clinical Microbiology and Infection Control, Hong Kong University-Shenzhen Hospital , Shenzhen 518053, Guangdong province, China
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Jarova K, Vavrova M, Koleckarova A. Residues of selected antibiotics in the South Moravian Rivers, Czech Republic. Neuro Endocrinol Lett 2015; 36 Suppl 1:100-105. [PMID: 26757126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 09/09/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES The aim of this study was to assess the contamination level of aquatic ecosystems of the Oslava and the Jihlava Rivers, and of the Nove Mlyny Water Reservoir, situated in the South Moravian Region (Czech Republic), by residues of selected veterinary pharmaceuticals. We isolated and determined 10 sulfonamide antibiotics in samples of surface water and bottom sediments using optimized analytical methods. DESIGN A representative number of sampling sites in the entire basin of selected waters were chosen. Samples were collected particularly near the larger cities in order to assess their possible impact to the aquatic ecosystems. Extraction, pre-concentration and purification of samples were performed using optimized methods of solid phase extraction and pressurized solvent extraction. Final identification and quantification were carried out by high-performance liquid chromatography coupled with diode array detector. RESULTS The concentration of sulfonamides in water samples were all under the limit of detection. Regarding sediment samples, sulfadimidine was found at most sampling sites; its highest values were recorded in the Jihlava River (up to 979.8 µg.kg(-1) dry matter). Other frequently detected sulfonamides were sulfamethoxazole and sulfamerazine. Most other sulfonamides were under the limit of detection or limit of quantification. CONCLUSIONS Monitoring of antibiotic residues in the environment, especially in the aquatic ecosystem, is a current topic due to the growing worldwide use in both human and veterinary medicine. According to obtained results, we document the pollution of selected rivers and water reservoir by particular sulfonamides which basically reflects their application in veterinary medicine.
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Affiliation(s)
- Katerina Jarova
- Department of Ecology and Diseases of Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Milada Vavrova
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Czech Republic
| | - Alice Koleckarova
- Department of Ecology and Diseases of Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
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Pereira JHOS, Reis AC, Homem V, Silva JA, Alves A, Borges MT, Boaventura RAR, Vilar VJP, Nunes OC. Solar photocatalytic oxidation of recalcitrant natural metabolic by-products of amoxicillin biodegradation. Water Res 2014; 65:307-20. [PMID: 25150518 DOI: 10.1016/j.watres.2014.07.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 05/08/2014] [Revised: 07/19/2014] [Accepted: 07/26/2014] [Indexed: 05/22/2023]
Abstract
The contamination of the aquatic environment by non-metabolized and metabolized antibiotic residues has brought the necessity of alternative treatment steps to current water decontamination technologies. This work assessed the feasibility of using a multistage treatment system for amoxicillin (AMX) spiked solutions combining: i) a biological treatment process using an enriched culture to metabolize AMX, with ii) a solar photocatalytic system to achieve the removal of the metabolized transformation products (TPs) identified via LC-MS, recalcitrant to further biological degradation. Firstly, a mixed culture (MC) was obtained through the enrichment of an activated sludge sample collected in an urban wastewater treatment plant (WWTP). Secondly, different aqueous matrices spiked with AMX were treated with the MC and the metabolic transformation products were identified. Thirdly, the efficiency of two solar assisted photocatalytic processes (TiO2/UV or Fe(3+)/Oxalate/H2O2/UV-Vis) was assessed in the degradation of the obtained TPs using a lab-scale prototype photoreactor equipped with a compound parabolic collector (CPC). Highest AMX specific biodegradation rates were obtained in buffer and urban wastewater (WW) media (0.10 ± 0.01 and 0.13 ± 0.07 g(AMX) g(biomass)(-1) h(-1), respectively). The resulting TPs, which no longer presented antibacterial activity, were identified as amoxicilloic acid (m/z = 384). The performance of the Fe(3+)/Oxalate/H2O2/UV-Vis system in the removal of the TPs from WW medium was superior to the TiO2/UV process (TPs no longer detected after 40 min (QUV = 2.6 kJ L(-1)), against incomplete TPs removal after 240 min (QUV = 14.9 kJ L(-1)), respectively).
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Affiliation(s)
- João H O S Pereira
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Ana C Reis
- LEPABE - Laboratory of Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vera Homem
- LEPABE - Laboratory of Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - José A Silva
- LEPABE - Laboratory of Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Arminda Alves
- LEPABE - Laboratory of Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Maria T Borges
- CIMAR - Centre for Marine and Environmental Research, Universidade do Porto and Departamento de Biologia, Faculdade de Ciências da, Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal
| | - Rui A R Boaventura
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vítor J P Vilar
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Olga C Nunes
- LEPABE - Laboratory of Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Cima G. WHO warns of 'post-antibiotic era'. J Am Vet Med Assoc 2014; 244:1356-1357. [PMID: 24998143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Proceedings of the 50th North American Chemical Residue Workshop (NACRW),July 21–24, 2013, FL. J Agric Food Chem 2014; 62:3649-838. [PMID: 25271339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Brandão FP, Pereira JL, Gonçalves F, Nunes B. The impact of paracetamol on selected biomarkers of the mollusc species Corbicula fluminea. Environ Toxicol 2014; 29:74-83. [PMID: 21956867 DOI: 10.1002/tox.20774] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 03/30/2011] [Revised: 08/22/2011] [Accepted: 08/24/2011] [Indexed: 05/31/2023]
Abstract
The Asian clam Corbicula fluminea is an invasive bivalve that has recently spread in Europe and currently represents a large portion of the aquatic biomass in specific areas. Because of the impacts that the species may have in invaded ecosystems, increased knowledge on the physiologic features of the species life-cycle under different environmental scenarios (e.g., contamination events) is critical to understand the dynamics of the invasion and resulting ecosystem imbalance. The presence of pharmaceutical residues in the aquatic environment has recently received great attention since high levels of contamination have been found, not only in sewage treatment plant effluents, but also in open waters. The present article reports toxicological biochemical effects of paracetamol to Corbicula fluminea following short- and long-term exposures. Oxidative stress parameters were specially focused namely catalase (CAT), glutathione S-transferases (GSTs), and glutathione reductase (GRed). The effect of tested substances on lipid peroxidation was also investigated. Paracetamol did not induce alterations on CAT activity, caused a significant decrease of GSTs activity following short- and long-term exposure (LOEC values of 532.78 mg L(-1) and 30.98 μg L(-1) , respectively), and was responsible for a significant and dose-dependent decrease of GRed activity in short- and long-term exposures. These results indicate that exposure to paracetamol can provoke significant alterations on the cellular redox status of C. fluminea.
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Affiliation(s)
- Fátima Pinto Brandão
- CESAM - Centro de Estudos do Ambiente e do Mar/ Departamento de Biologia da Universidade de Aveiro, Campus Santiago 3810-193 Aveiro, Portugal
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Moradiya MR, Solanki KP, Shah PA, Patel KG, Thakkar VT, Gandhi TR. Cleaning validation: quantitative estimation of atorvastatin in production area. PDA J Pharm Sci Technol 2013; 67:164-171. [PMID: 23569077 DOI: 10.5731/pdajpst.2013.00911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
UNLABELLED Carefully designed cleaning validation and its evaluation can ensure that residues of active pharmaceutical ingredient will not carry over and cross-contaminate the subsequent product. UV spectrophotometric and total organic carbon-solid sample module (TOC-SSM) method was developed and validated for the verification and determination of atorvastatin residues in the production area and to confirm the efficiency of the cleaning procedure as per ICH guideline. Atorvastatin was selected on the basis of a worst-case rating approach. It exhibited good linearity in the range of 5 to 25 μg/mL for UV spectrophotometric and 7300 to 83800 μg for the TOC-SSM method. The limit of detection was 0.419 μg/mL and 4.19 μg in the UV spectrophotometric and TOC-SSM methods, respectively. The limit of quantitation was 1.267 μg/mL and 12.69 μg in UV spectrophotometric and TOC-SSM methods, respectively. Percentage recovery from spiked stainless steel plates was found to be 95.37% and 92.82% in UV spectrophotometric and TOC-SSM methods, respectively. The calculated limit of acceptance per swab for atorvastatin (35.65 μg/swab) was not exceeded during three consecutive batches of production after cleaning procedure. Both proposed methods are suitable for quantitative determination of atorvastatin on manufacturing equipment surfaces well below the limit of contamination. The ease of sample preparation permits fast and efficient application of the proposed methods in quantitation of atorvastatin residue with precision and accuracy. Above all, the methodology is of low cost, and is a simple and less time-consuming alternative to confirm the efficiency of the cleaning procedure in pharmaceutical industries. LAY ABSTRACT Carefully designed cleaning validation and its evaluation can ensure that residues of active pharmaceutical ingredient will not carry over and cross-contaminate the subsequent product. Atorvastatin was identified as a potential candidate among existing drug substances in production areas based on a worst-case rating approach. Atorvastatin residues were detected and quantified below acceptance limits after cleaning of production equipment using two proposed methods, namely, the UV spectrophotometric and total organic carbon-solid sample module (TOC-SSM) methods. The ease of sample preparation permits fast and efficient application of the proposed methods in quantitation of atorvastatin residue in production equipment area to confirm the efficiency of the cleaning procedure in pharmaceutical industries. Above all, the methodology is of low cost, and is a simple and less time-consuming alternative for cleaning validation.
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Kalpana S, Aggarwal M, Srinivasa Rao G, Malik JK. Effects of aflatoxin B1 on tissue residues of enrofloxacin and its metabolite ciprofloxacin in broiler chickens. Environ Toxicol Pharmacol 2012; 33:121-126. [PMID: 22209724 DOI: 10.1016/j.etap.2011.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 10/30/2011] [Accepted: 11/08/2011] [Indexed: 05/31/2023]
Abstract
The impact of subchronic exposure of aflatoxin B1 on the tissue residues of enrofloxacin and its metabolite ciprofloxacin was examined in broiler chickens. Broiler chickens given either normal or aflatoxin B1 (750 μg/kg diet) supplemented diets for 6 weeks received enrofloxacin (10 mg/kg/day, p.o.) for 4 days and thereafter, residue levels were determined. Aflatoxin B1 induced alterations in serum marker enzymes. As compared to unexposed broiler chickens, enrofloxacin concentrations in aflatoxin B1-exposed broiler chickens were significantly higher in all tissues (0.62-4.53 μg/g) analyzed except muscle 24h after termination of enrofloxacin administration. Ciprofloxacin was detectable in tissues of only mycotoxin-exposed broiler chickens. Enrofloxacin residues in liver, kidney and skin plus fat persisted for 10 days in mycotoxin-exposed broiler chickens whereas it was detectable only in liver of unexposed broiler chickens. Our results indicate that subchronic aflatoxin B1 exposure markedly influences the residue levels of enrofloxacin and ciprofloxacin in tissues of broiler chickens.
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Affiliation(s)
- Starling Kalpana
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar-243 122, UP, India.
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Li Z, Chen C, Ai D, Wang C, Li J, Qi Y, Yi W, Shen H, Cao J. Pharmacokinetics and tissue residues of hydrochloric acid albendazole sulfoxide and its metabolites in crucian carp (Carassius auratus) after oral administration. Environ Toxicol Pharmacol 2012; 33:197-204. [PMID: 22227164 DOI: 10.1016/j.etap.2011.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 11/22/2011] [Accepted: 12/04/2011] [Indexed: 05/31/2023]
Abstract
The pharmacokinetics and residues elimination of hydrochloric acid albendazole sulfoxide (ABZSO) and its metabolites were studied in healthy crucian carp (Carassius auratus, 250 ± 30 g) kept at water temperatures of 10 °C and 25 °C. The concentrations of ABZSO and its metabolites concentration in plasma and tissues were determined using high-performance liquid chromatography (HPLC) using an ultraviolet detector. The results revealed that the plasma concentration of ABZSO in plasma was significantly higher than that of albendazole sulfone (ABZSO(2)), whereas albendazole-2-aminosulfone (ABZ-SO(2)NH(2)) was not detected. The plasma concentrations of ABZSO and its main metabolite ABZSO(2) concentration-time data were fitted using a single-compartment model at 10 °C and 25 °C. The absorption half-life (t₁/₂ka) of ABZSO was 3.86 h at 10 °C and 1.29 h at 25 °C, whereas the elimination half-life (t₁/₂ke) was 16.34 h at 10 °C and 6.72 h at 25 °C; the maximum plasma concentration (C(max)) and the time-point of maximum plasma concentration (T(p)) were calculated as 3.20 μg mL(-1) and 10.58 h at 10 °C, 4.39 μg mL(-1) and 3.80 h at 25 °C. The distribution volume (V(d)/F) of ABZSO was estimated to be 1.99 L kg(-1) at 10 °C and 1.53 L kg(-1) at 25 °C; the total body clearance (CL(b)) of ABZSO were computed as 0.08 and 0.19 L/(h kg) at 10 and 25 °C, respectively; the areas under the concentration-time curve (AUC) was 118.22 μg mL(-1)h at 10 °C and 63.12 μg mL(-1)h at 25 °C. The [Formula: see text] of ABZSO(2) was found to be 6.39 °C at 10 °C and 3.73 h at 25 °C, whereas the [Formula: see text] was 12.86 h at 10 °C and 6.56 h at 25 °C; the C(max) and T(p) of ABZSO(2) was calculated as 0.78 μg mL(-1) and 12.82 h at 10 °C, 1.03 μg mL(-1) and 7.04 h at 25 °C, respectively; the V(d)/F of ABZSO(2) were estimated to be 6.43 L kg(-1) at 10 °C and 4.61 Lkg(-1) at 25 °C; the CL(b) of ABZSO(2) were computed as 0.34 and 0.49 L/(h kg) at 10 °C and 25 °C, respectively; the AUC of ABZSO(2) were 28.86 μg mL(-1)h at 10 °C and 20.52 μg mL(-1)h at 25 °C. It was demonstrated that ABZSO(2) was the main metabolite of ABZSO. The concentrations of ABZSO and its main metabolite (ABZSO(2)) were detected in muscle, skin, liver and kidney, whereas ABZ-SO(2)NH(2) was only detected in liver and kidney. The ABZSO and it metabolite (ABZSO(2)) could still be detected at 4 d time-point after administration at both temperatures in all tissues. The results revealed that the depletion of ABZSO and its metabolite (ABZSO(2)) in crucian carp was slower with a long half-life time, especially at lower water temperature.
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Affiliation(s)
- Zaijian Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
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Cruz Rosales M, Martínez I, López-Collado J, Vargas-Mendoza M, González-Hernández H, Fajersson P. Effect of ivermectin on the survival and fecundity of Euoniticellus intermedius (Coleoptera: Scarabaeidae). REV BIOL TROP 2012; 60:333-345. [PMID: 22458228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The State of Veracruz in Mexico is one of the main cattle producers, and uses several veterinary products for disease and parasite control. For parasite control, ivermectin is one of the most frequently used substances. Nevertheless, even though previous research conducted in other countries has found that this product has negative effects on beneficial coprophagous fauna, no studies have described its effects on coprophagous insects at a local scale in Veracruz, Mexico. This study evaluated Euoniticellus intermedius survival, fecundity, fertility and preimaginal development under laboratory conditions when ivermectin was added to cattle dung at three different concentrations. The design included two controls (spiked dung), and the following product concentrations: 0.01, 1.0 and 100ppm, which were homogenized with wet cattle dung. 20 female-male E. intermedius couples between five and 15 days old were used and kept at 27 degrees C, 70% RH, and 12h light for 10 days. The survival of all specimens, the fertility of 20 females and the gonadal maturity of 17 males were verified. The larval development in 162 pieces of brood-mass was examined, and a total of 974 larvae developed and reached adulthood. The highest ivermectin concentration was toxic at 1.0ppm dose, the survival of adults was reduced to almost the half, and at 100ppm, total mortality was observed. The effects on specimen reproductive systems showed that the ovary was not affected, that the testicle size increased, and that the fecundity and weight of brood-masses were reduced. Pre-imaginal development increased 0.5 times at 0.01ppm concentration, and the width of the cephalic capsule in third instar larvae diminished. The prolonging of development time may cause a phase lag in the field activity cycle, this lag may reduce the number of E. intermedius individuals and the efficiency of the environmental services that they provide.
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Affiliation(s)
- Magdalena Cruz Rosales
- Red de Ecoetología, Instituto de Ecología, A.C. Carretera a Coatepec 351, El Haya, Xalapa 91070, Veracruz, México.
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Cima G. FDA denies petitions to restrict livestock drug use. J Am Vet Med Assoc 2012; 240:129-130. [PMID: 22319839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Omeiza GK, Kabir J, Mamman M, Ibrahim H, Fagbamila IO. Response of Nigerian farmers to a questionnaire on chloramphenicol application in commercial layers. Vet Ital 2012; 48:87-93. [PMID: 22485005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The authors assessed the occurrence of chloramphenicol (CAP) residues in commercial eggs. Of the 105 farmers surveyed for the use of CAP, 35 (33.3%) and 70 (66.7%) responded regarding their awareness or complete lack of awareness of the legislation that stipulates the use of CAP in food animals, including poultry, respectively. Only 28 (26.7%) of respondent farmers were aware that CAP was one of the drugs that is not recommended for use in food animals. Amongst the farms surveyed in the preliminary phase of this study, 24 were randomly sampled for further investigation, of which 21 (20.0%) admitted the use of CAP in forms of human and veterinary preparations, while 15 (62.5%) admitted the use of human CAP preparation only. The presence of antimicrobial residues was confirmed using specific thin-layer chromatography (STLC) in 8 out of 144 pooled egg samples (10 eggs per sample). The only positive CAP sample was identified on a farm that adopted the use of a human CAP preparation.
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Affiliation(s)
- Gabriel K Omeiza
- Department of Veterinary Public Health and Preventive Medicine, University of Abuja, Abuja, Nigeria.
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Blanco G, Lemus JA, García-Montijano M. When conservation management becomes contraindicated: impact of food supplementation on health of endangered wildlife. Ecol Appl 2011; 21:2469-77. [PMID: 22073636 DOI: 10.1890/11-0038.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Understanding the conditions that force the implementation of management actions and their efficiency is crucial for conservation of endangered species. Wildlife managers are widely and increasingly using food supplementation for such species because the potentially immediate benefits may translate into rapid conservation improvements. Supplementary feeding can also pose risks eventually promoting undesired, unexpected, subtle, or indirect, and often unnoticed, effects that are generally poorly understood. For two decades, intensive food supplementation has been used in attempting to improve the breeding productivity of the Spanish Imperial Eagle, Aquila adalberti, one of the most endangered birds of prey in the world. Here, we examined the impact of this intensive management action on nestling health, including contamination, immunodepression, and acquisition of disease agents derived from supplementation techniques and provisioned food. Contrary to management expectations, we found that fed individuals were often inadvertently "medicated" with pharmaceuticals (antibiotics and antiparasitics) contained in supplementary food (domestic rabbits). Individuals fed with medicated rabbits showed a depressed immune system and a high prevalence and richness of pathogens compared with those with no or safe supplementary feeding using non-medicated wild rabbits. A higher presence of antibiotics (fluoroquinolones) was found in sick as opposed to healthy individuals among eaglets with supplementary feeding, which points directly toward a causal effect of these drugs in disease and other health impairments. This study represents a telling example of well-meaning management strategies not based on sound scientific evidence becoming a "contraindicated" action with detrimental repercussions undermining possible beneficial effects by increasing the impact of stochastic factors on extinction risk of endangered wildlife.
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Affiliation(s)
- Guillermo Blanco
- Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales (CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain.
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Wu X, Wei Y, Zheng J, Zhao X, Zhong W. The behavior of tetracyclines and their degradation products during swine manure composting. Bioresour Technol 2011; 102:5924-31. [PMID: 21444199 DOI: 10.1016/j.biortech.2011.03.007] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 03/03/2011] [Accepted: 03/03/2011] [Indexed: 05/16/2023]
Abstract
The purposes of this study were to investigate the behavior of three tetracyclines including chlortetracycline (CTC), oxytetracycline (OTC) and tetracycline (TC) and their degradation products in a pilot scale swine manure composting, and also to study the degradation kinetics of CTC, OTC and TC. During the pilot scale composting, CTC, OTC and TC were degraded by 74%, 92% and 70%, respectively. Several degradation products were found like 4-epitetracycline (ETC), 4-epioxytetracycline (EOTC), 4-epichlortetracycline (ECTC), demeclocycline (DMCTC) and anhydrotetracycline (ATC). Both the simple and the adjusted first-order kinetic models successfully fit the degradation process of CTC, OTC and TC during the composting, but the adjusted first-order kinetic model fit much better with the calculated half-lives of 8.2, 1.1 and 10.0 days, respectively.
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Affiliation(s)
- Xiaofeng Wu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, PR China
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Bansal BK, Bajwa NS, Randhawa SS, Ranjan R, Dhaliwal PS. Elimination of erythromycin in milk after intramammary administration in cows with specific mastitis: relation to dose, milking frequency and udder health. Trop Anim Health Prod 2010; 43:323-9. [PMID: 20844949 DOI: 10.1007/s11250-010-9692-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2010] [Indexed: 11/25/2022]
Abstract
Elimination of erythromycin in milk following intramammary therapy of specific mastitis in cows was studied. Five cows received therapy in one quarter (G1), and eight in two quarters with five milked twice (G2) and three thrice a day (G3). Dose infused was 300 mg/quarter 12 h × 5 times. The drug concentrations in milk were determined using microbial assay technique with Micrococcus luteus as the test organism. Considerable variations occurred in the excretion of drug; levels for treated quarters being 8.25 to 37.61 μg/ml at first milking that declined rapidly at 24 h and no drug activity was observed beyond 36 h post treatment. In total, about 6-25% of the last infused dose appeared in the milk. Drug crossed to 1/15 quarter (G1), 6/10 quarters (G2) and all the six untreated quarters (G3). Crossover levels were significantly higher in mastitic quarters and for G3 cows, but duration of excretion remained same in all cases. It seems that crossover of erythromycin to untreated quarters is related to the udder health and dose infused.
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Affiliation(s)
- Baljinder Kumar Bansal
- Department of Clinical Veterinary Medicine, Ethics and Jurisprudence, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, 141 004 Punjab, India.
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Tilley B. Poultry veterinarians' perspectives on antimicrobial resistance. J Am Vet Med Assoc 2010; 237:258-259. [PMID: 20712063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Gonder E. Poultry veterinarians' perspectives on antimicrobial resistance. J Am Vet Med Assoc 2010; 237:258. [PMID: 20707013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Cima G. Industry groups, congressman argue to preserve antimicrobial use. J Am Vet Med Assoc 2010; 236:715. [PMID: 20397308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Nakada N, Yasojima M, Okayasu Y, Komori K, Suzuki Y. Mass balance analysis of triclosan, diethyltoluamide, crotamiton and carbamazepine in sewage treatment plants. Water Sci Technol 2010; 61:1739-1747. [PMID: 20371932 DOI: 10.2166/wst.2010.100] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The behavior of antibacterial triclosan, insect-repellent diethyltoluamide (DEET), anticonvulsant carbamazepine, and antipruritic crotamiton was investigated at two sewage treatment plants (STPs) to clarify their complete mass balance. Twenty-four-hour flow-proportional composite samples were collected from the influent and effluent of primary and final sedimentation tanks, a biofiltration tank and disinfection tanks. Sludge samples (i.e., activated and excess sludge) and samples of the return flow from the sludge treatment process were collected in the same manner. The analytes in both the dissolved and particulate phases were individually determined by a gas chromatograph equipped with mass spectrometer. Triclosan was dominantly detected in the particulate phase especially in the early stage of treatment (up to 83%) and was efficiently removed (over 90%) in STPs, mainly by sorption to sewage sludge. Limited removal was observed for DEET (55+/-24%), while no significant removal was demonstrated for crotamiton or carbamazepine. The solid-water distribution coefficients (K(d), n=4) for triclosan (log K(d): 3.7-5.1), DEET (1.3-1.9) and crotamiton (1.1-1.6) in the sludge samples are also determined in this study. These findings indicate the limitations of current sewage treatment techniques for the removal of these water-soluble drugs (i.e. DEET, carbamazepine, and crotamiton).
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Affiliation(s)
- N Nakada
- Water Environment Research Group, Public Works Research Institute, 1-6 Minamihara, Tsukuba City, Ibaraki Pref. 305-8516, Japan.
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[Alert DAP Beilen wins the first MVVO award]. Tijdschr Diergeneeskd 2009; 134:918. [PMID: 20088264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Chou KY, Cheng TY, Chen CM, Hung PL, Tang YY, Chung-Wang YJ, Shih YC. Simultaneous determination of residual thiamphenicol and florfenicol in foods of animal origin by HPLC/electrospray ionization-MS/MS. J AOAC Int 2009; 92:1225-1232. [PMID: 19714994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A simple and reliable method using HPLC/MS/MS has been developed for determination of thiamphenicol and florfenicol in foods of animal origin, such as pork, porcine liver, porcine kidney, beef, bovine liver, fish, and chicken. The HPLC separation was performed on a Waters XTerra phenyl column (100 x 2.1 mm, 3.5 microm) with a gradient mobile phase system of 0.1% formic acid-methanol at a flow rate 0.35 ml/min. Negative ionization produced the molecular ions at m/z 354 and 356 for thiamphenicol and florfenicol, respectively. Two characteristic transition reactions (m/z 354-->185, 290 and m/z 356-->336, 185) in the selected reaction monitoring mode were tested for detection and confirmation of thiamphenicol and florfenicol simultaneously. The analytes were extracted with ethyl acetate and defatted with n-hexane by liquid-liquid extraction. The recoveries of thiamphenicol and florfenicol by the developed method were 72.5-97.6%. The limits of determination were 1.0 ng/g (ppb) for both compounds.
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Affiliation(s)
- Kuang Yu Chou
- Bureau of Food and Drug Analysis, Department of Health, Executive Yuan, No.161-2, Kunyang St, Nangang District, Taipei City 115-61, Taiwan, Republic of China
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