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Chai S, Chi Y, Sun W, Hou X, Pei S, Luo K, Lv W. Synthesis of N-doped and P-doped silicon quantum dots and their applications for tetracycline detection in the honey samples and antibacterial properties. Food Chem 2024; 450:139324. [PMID: 38615527 DOI: 10.1016/j.foodchem.2024.139324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/24/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
The abuse of tetracycline can lead to its residue in animal derived foods, posing many potential hazards to human health. Therefore, rapid and accurate detection of tetracycline is an important means to ensure food safety. Nitrogen doped and phosphorus doped silicon quantum dots (N-SiQDs, P-SiQDs) with remarkable optical stability were fabricated via a one-pot hydrothermal procedure in this study. Upon the excitation at 346 nm, N-SiQDs and P-SiQDs emitted fluorescence at 431 nm and 505 nm, respectively. Two SiQDs had the potential to serve as a probe for detecting low concentrations of tetracycline (TC), employing a mechanism of the static quenching effect. The calibration curves of N-SiQDs and P-SiQDs were linear within the range of 0-0.8 μM and 0-0.4 μM, the limits of detection were low as 5.35 × 10-4 μmol/L and 6.90 × 10-3 μmol/L, respectively. This method could be used successfully to detect TC in honey samples. Moreover, the remarkable antibacterial efficacy of two SiQDs could be attributed to the generation of a large number of intracellular reactive oxygen species. The SEM images showed that the structure of bacterial cell was disrupted and the surface became irregular when treated with both SiQDs. These properties enabled potential usage of SiQDs as excellent antibacterial material for different biomedical applications.
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Affiliation(s)
- Shuiqin Chai
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China.
| | - Yuting Chi
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Wanlin Sun
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Xin Hou
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Shuchen Pei
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Kang Luo
- People's Hospital Affiliated to Chongqing Three Gorges Medical College, Chongqing 404037, PR China.
| | - Wenyi Lv
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, PR China.
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Wang X, Dong Y, Luan Y, Tian S, Li C, Li Y, Zhou J. Integrated assessment of the spatial distribution, sources, degradation, and human risk of tetracyclines in honey in China. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134681. [PMID: 38788580 DOI: 10.1016/j.jhazmat.2024.134681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/04/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Tetracyclines are widely used in Chinese apiculture. However, limited information is available on the presence of tetracycline residues in honey and the sources, degradation patterns, and associated health risks of these compounds. In this study, the presence of tetracyclines in honey samples across China was investigated over a four-year period. Additionally, the risks of dietary intake, as well as the sources and degradation patterns of tetracyclines in honey, were assessed. The three-dimensional spatial distributions (floral region, geographical region and entomological origin) of tetracyclines contamination varied significantly. Tetracycline residues in honey posed a moderate risk to children aged 3-10 years in Northwest China. Source analysis indicated that colony migration serves as the primary source of tetracyclines in honey. Based on the degradation patterns of tetracyclines in honey within colonies and during storage, oxytetracycline is more readily degraded than other tetracyclines. The main degradation products of tetracyclines are epimers and dehydration products, and the effects of these products on human health and the environment should be further evaluated in future studies. This comprehensive investigation provides valuable insights into the safe use and regulation of tetracyclines in Chinese apiculture.
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Affiliation(s)
- Xinran Wang
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China; Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China
| | - Yiwei Dong
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yunxia Luan
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China
| | - Sinuo Tian
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China
| | - Cheng Li
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China.
| | - Yi Li
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China; Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Jinhui Zhou
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, PR China; Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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Kallu SA, Kebede N, Kassa T, Wubaye AM, Kainga H, Mekonnen H, Simuunza MC. Knowledge, Attitudes, Practices, and Risk Perception of Antimicrobial Use and Antimicrobial Resistance Among Dairy Farm Owners/Workers in Addis Ababa, Ethiopia. Infect Drug Resist 2024; 17:1839-1861. [PMID: 38745680 PMCID: PMC11092976 DOI: 10.2147/idr.s453570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Antimicrobial resistance (AMR) is one of the most significant global health threats to the public, animals, and the ecosystem. Inappropriate use of antibiotics in food animals is considered a major driver of AMR in humans. This study was conducted to assess the knowledge, attitude, practices, and risk perception (KAPP) of dairy farm owners/workers in Addis Ababa about antibiotic use and resistance. Methods A face-to-face interview using a structured questionnaire was conducted with 281 respondents in four selected subcities of Addis Ababa. The responses provided by each participant were recoded into a binary scale based on the mean score of each domain. Pearson chi-square was used to check the association between the KAPP and sociodemographic characteristics of the respondents and logistic regression analysis was done to explore the factors associated with KAPP. Results Overall, more than half of the surveyed dairy farm owners/workers had good knowledge (57.7%) and appropriate practice (53.0%), while less than half of the respondents showed desirable attitudes (47.7%) and positive risk perceptions (42.7%). The findings revealed a strong association between the respondents' KAPP and education and between knowledge and risk perception and farming experience. Conclusion This study found that continuous education of dairy farm owners/workers regarding antimicrobial usage and antimicrobial resistance in dairy farms will increase their awareness and perception of risk as well as motivate them to adopt desirable attitudes and appropriate practices, and consequently limit inappropriate use of antimicrobials leading to mitigating emergence of AMR.
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Affiliation(s)
- Simegnew Adugna Kallu
- College of Veterinary Medicine, Haramaya University, Dire Dawa, Ethiopia
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Nigatu Kebede
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tesfu Kassa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | | | - Henson Kainga
- Department of Veterinary Epidemiology and Public Health, Faculty of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - Habtamu Mekonnen
- Addis Ababa City Administration, Farmers and Urban Agriculture Development Commission, Addis Ababa, Ethiopia
| | - Martin C Simuunza
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
- Africa Centre of Excellence for Infectious Diseases of Humans and Animals, University of Zambia, Lusaka, Zambia
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4
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Lin CY, Yao CA. Antibiotics used to treat acne may be associated with inflammatory bowel disease: Response to Kridin et al "Isotretinoin and the risk of inflammatory bowel disease and irritable bowel syndrome: A large-scale global study". J Am Acad Dermatol 2024; 90:e135-e136. [PMID: 37951244 DOI: 10.1016/j.jaad.2023.09.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 11/13/2023]
Affiliation(s)
- Chih-Yin Lin
- Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Chun-An Yao
- Department of Dermatology, Cathay General Hospital, Taipei, Taiwan.
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Hanna N, Tamhankar AJ, Lundborg CS. The development of an integrated environment-human risk approach for the prioritisation of antibiotics for policy decisions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163301. [PMID: 37031932 DOI: 10.1016/j.scitotenv.2023.163301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 05/27/2023]
Abstract
Environmental contamination with antibiotic residues has caused significant concern. Antibiotics are continually emitted into the environment which potentially threatens environmental and human health, particularly, the risk in the development of antibiotic resistance. A list of priority antibiotics in the environment is essential for eco-pharmacovigilance and policy decisions. This study developed a prioritisation system of antibiotics based on their integrated environmental (resistance and ecotoxicity) and human health (resistance and toxicity) risks, considering various aquatic environmental compartments. Data obtained by conducting a systematic review of the literature of antibiotic residues in various aquatic environmental compartments in China was used as an example. The list of priority antibiotics was created by ranking the antibiotics in descending order, based on the risk scores of their a) overall risk, (b) antibiotic resistance risk to environment, (c) ecotoxicity risk, (d) overall environmental risk, (e) antibiotic resistance risk to human health, (f) toxicity risk to human health and (g) overall human health risk. Ciprofloxacin posed the greatest risk and chloramphenicol posed the least risk. The output from this research can be used to implement eco-pharmacovigilance and to develop targeted policies which would prevent / minimise the environmental and human health risks from antibiotic residues. The use of this list of priority antibiotics will allow for a country / region / setting to (a) optimise the use of antibiotics and their prescribing practices, (b) create effective monitoring and mitigation strategies, (c) minimise the discharge of antibiotic residues and (d) focus research efforts.
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Affiliation(s)
- Nada Hanna
- Department of Global Public Health, Health Systems and Policy (HSP): Improving use of medicines, Karolinska Institutet, Stockholm 171 77, Sweden.
| | - Ashok J Tamhankar
- Department of Global Public Health, Health Systems and Policy (HSP): Improving use of medicines, Karolinska Institutet, Stockholm 171 77, Sweden; Indian Initiative for Management of Antibiotic Resistance, Department of Environmental Medicine, R.D. Gardi Medical College, Ujjain 456006, India
| | - Cecilia Stålsby Lundborg
- Department of Global Public Health, Health Systems and Policy (HSP): Improving use of medicines, Karolinska Institutet, Stockholm 171 77, Sweden
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Wang L, Chen J, Zhang X, Xu M, Zhang X, Zhao W, Cui J. Effects of microplastics and tetracycline on intestinal injury in mice. CHEMOSPHERE 2023:139364. [PMID: 37391084 DOI: 10.1016/j.chemosphere.2023.139364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Microplastics (MPs) and tetracycline are both emerging environmental pollutants that threaten human health. The toxic impacts of their single and coexposure on the intestine and gut microbiota have not been well studied in mammals. Given the spatial functional characteristics of the intestine, it is important to know whether the toxicities of MPs and tetracycline in different intestinal segments are distinct. This study investigated the pathological and functional injuries of different intestinal segments and the microbial disorder upon exposure to polystyrene microplastics (PS-MPs) and/or tetracycline hydrochloride (TCH). Both PS-MPs and TCH altered the intestinal morphology and induced functional impairment. However, the PS-MPs primarily damaged the colon, while TCH mainly damaged the small intestine, especially the jejunum. Combined treatment evoked ameliorative adverse effects on the intestinal segments except for the ileum. Gut microbiota analysis revealed that PS-MPs and/or TCH decreased gut microbiota diversity, especially PS-MPs. In addition, PS-MPs and TCH affected the microflora metabolic processes, especially protein absorption and digestion. Gut microbiota dysbiosis could partly lead to the physical and functional damage induced by PS-MPs and TCH. These findings enhance our knowledge regarding the hazards of coexisting microplastics and antibiotics for mammalian intestinal health.
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Affiliation(s)
- Lixin Wang
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China.
| | - Jiamin Chen
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China
| | - Xuan Zhang
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China
| | - Man Xu
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China
| | - Xuyan Zhang
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China
| | - Wanqing Zhao
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China
| | - Jiansheng Cui
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei Key Laboratory of Pollution Prevention Biotechnology, Shijiazhuang, 050018, China; Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, China.
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7
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Bouslama R, Dumont V, Lindfors S, Paavolainen L, Tienari J, Nisen H, Mirtti T, Saleem MA, Gordin D, Groop PH, Suetsugu S, Lehtonen S. Phosphorylation of PACSIN2 at S313 Regulates Podocyte Architecture in Coordination with N-WASP. Cells 2023; 12:1487. [PMID: 37296607 PMCID: PMC10252800 DOI: 10.3390/cells12111487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Changes in the dynamic architecture of podocytes, the glomerular epithelial cells, lead to kidney dysfunction. Previous studies on protein kinase C and casein kinase 2 substrates in neurons 2 (PACSIN2), a known regulator of endocytosis and cytoskeletal organization, reveal a connection between PACSIN2 and kidney pathogenesis. Here, we show that the phosphorylation of PACSIN2 at serine 313 (S313) is increased in the glomeruli of rats with diabetic kidney disease. We found that phosphorylation at S313 is associated with kidney dysfunction and increased free fatty acids rather than with high glucose and diabetes alone. Phosphorylation of PACSIN2 emerged as a dynamic process that fine-tunes cell morphology and cytoskeletal arrangement, in cooperation with the regulator of the actin cytoskeleton, Neural Wiskott-Aldrich syndrome protein (N-WASP). PACSIN2 phosphorylation decreased N-WASP degradation while N-WASP inhibition triggered PACSIN2 phosphorylation at S313. Functionally, pS313-PACSIN2 regulated actin cytoskeleton rearrangement depending on the type of cell injury and the signaling pathways involved. Collectively, this study indicates that N-WASP induces phosphorylation of PACSIN2 at S313, which serves as a mechanism whereby cells regulate active actin-related processes. The dynamic phosphorylation of S313 is needed to regulate cytoskeletal reorganization.
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Affiliation(s)
- Rim Bouslama
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Vincent Dumont
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Sonja Lindfors
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Lassi Paavolainen
- Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, 00290 Helsinki, Finland
| | - Jukka Tienari
- Department of Pathology, University of Helsinki, Helsinki, and Helsinki University Hospital, 05850 Hyvinkää, Finland
| | - Harry Nisen
- Department of Urology, Helsinki University Hospital, 00029 HUS, Finland
| | - Tuomas Mirtti
- Department of Pathology, Helsinki University Hospital, 00290 Helsinki, Finland
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Moin A. Saleem
- Children’s Renal Unit, Bristol Medical School, University of Bristol, Bristol BS8 1TS, UK
| | - Daniel Gordin
- Minerva Foundation Institute for Medical Research, 00290 Helsinki, Finland
- Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
- Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Per-Henrik Groop
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, 00290 Helsinki, Finland
- Department of Nephrology, University of Helsinki, Helsinki, and Helsinki University Hospital, 00290 Helsinki, Finland
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC 3800, Australia
| | - Shiro Suetsugu
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
- Data Science Center, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
- Center for Digital Green-Innovation, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Sanna Lehtonen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
- Department of Pathology, University of Helsinki, 00290 Helsinki, Finland
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8
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Garcia TM, van Roest M, Vermeulen JLM, Meisner S, Smit WL, Silva J, Koelink PJ, Koster J, Faller WJ, Wildenberg ME, van Elburg RM, Muncan V, Renes IB. Early Life Antibiotics Influence In Vivo and In Vitro Mouse Intestinal Epithelium Maturation and Functioning. Cell Mol Gastroenterol Hepatol 2021; 12:943-981. [PMID: 34102314 PMCID: PMC8346670 DOI: 10.1016/j.jcmgh.2021.05.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS The use of antibiotics (ABs) is a common practice during the first months of life. ABs can perturb the intestinal microbiota, indirectly influencing the intestinal epithelial cells (IECs), but can also directly affect IECs independent of the microbiota. Previous studies have focused mostly on the impact of AB treatment during adulthood. However, the difference between the adult and neonatal intestine warrants careful investigation of AB effects in early life. METHODS Neonatal mice were treated with a combination of amoxicillin, vancomycin, and metronidazole from postnatal day 10 to 20. Intestinal permeability and whole-intestine gene and protein expression were analyzed. IECs were sorted by a fluorescence-activated cell sorter and their genome-wide gene expression was analyzed. Mouse fetal intestinal organoids were treated with the same AB combination and their gene and protein expression and metabolic capacity were determined. RESULTS We found that in vivo treatment of neonatal mice led to decreased intestinal permeability and a reduced number of specialized vacuolated cells, characteristic of the neonatal period and necessary for absorption of milk macromolecules. In addition, the expression of genes typically present in the neonatal intestinal epithelium was lower, whereas the adult gene expression signature was higher. Moreover, we found altered epithelial defense and transepithelial-sensing capacity. In vitro treatment of intestinal fetal organoids with AB showed that part of the consequences observed in vivo is a result of the direct action of the ABs on IECs. Lastly, ABs reduced the metabolic capacity of intestinal fetal organoids. CONCLUSIONS Our results show that early life AB treatment induces direct and indirect effects on IECs, influencing their maturation and functioning.
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Affiliation(s)
- Tânia Martins Garcia
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Manon van Roest
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Jacqueline L M Vermeulen
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Sander Meisner
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Wouter L Smit
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Joana Silva
- Department of Oncogenomics, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Pim J Koelink
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Jan Koster
- Department of Oncogenomics, Amsterdam, the Netherlands
| | - William J Faller
- Department of Oncogenomics, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Manon E Wildenberg
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands
| | - Ruurd M van Elburg
- Department of Pediatrics, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Vanesa Muncan
- Department of Gastroenterology and Hepatology, Tytgat Institute for Intestinal and Liver Research, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands.
| | - Ingrid B Renes
- Department of Pediatrics, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands; Danone Nutricia Research, Utrecht, the Netherlands
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Human Intestinal Tissue Explant Exposure to Silver Nanoparticles Reveals Sex Dependent Alterations in Inflammatory Responses and Epithelial Cell Permeability. Int J Mol Sci 2020; 22:ijms22010009. [PMID: 33374948 PMCID: PMC7792613 DOI: 10.3390/ijms22010009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023] Open
Abstract
Consumer products manufactured with antimicrobial silver nanoparticles (AgNPs) may affect the gastrointestinal (GI) system. The human GI-tract is complex and there are physiological and anatomical differences between human and animal models that limit comparisons between species. Thus, assessment of AgNP toxicity on the human GI-tract may require tools that allow for the examination of subtle changes in inflammatory markers and indicators of epithelial perturbation. Fresh tissues were excised from the GI-tract of human male and female subjects to evaluate the effects of AgNPs on the GI-system. The purpose of this study was to perform an assessment on the ability of the ex vivo model to evaluate changes in levels of pro-/anti-inflammatory cytokines/chemokines and mRNA expression of intestinal permeability related genes induced by AgNPs in ileal tissues. The ex vivo model preserved the structural and biological functions of the in-situ organ. Analysis of cytokine expression data indicated that intestinal tissue of male and female subjects responded differently to AgNP treatment, with male samples showing significantly elevated Granulocyte-macrophage colony-stimulating factor (GM-CSF) after treatment with 10 nm and 20 nm AgNPs for 2 h and significantly elevated RANTES after treatment with 20 nm AgNPs for 24 h. In contrast, tissues of female showed no significant effects of AgNP treatment at 2 h and significantly decreased RANTES (20 nm), TNF-α (10 nm), and IFN-γ (10 nm) at 24 h. Smaller size AgNPs (10 nm) perturbed more permeability-related genes in samples of male subjects, than in samples from female subjects. In contrast, exposure to 20 nm AgNPs resulted in upregulation of a greater number of genes in female-derived samples (36 genes) than in male-derived samples (8 genes). The ex vivo tissue model can distinguish sex dependent effects of AgNP and could serve as a translational non-animal model to assess the impacts of xenobiotics on human intestinal mucosa.
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Piñeiro SA, Cerniglia CE. Antimicrobial drug residues in animal-derived foods: Potential impact on the human intestinal microbiome. J Vet Pharmacol Ther 2020; 44:215-222. [PMID: 32710465 DOI: 10.1111/jvp.12892] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/17/2020] [Accepted: 06/29/2020] [Indexed: 12/23/2022]
Abstract
The use of veterinary drugs in food-producing animals may result in the presence of low levels of drug residues in these edible, animal-derived foods, with potential dietary exposure to humans. Since therapeutic doses of antibiotics have been shown to affect bacterial populations in the gastrointestinal tract microbiome and can also promote the emergence of antibiotic-resistant bacteria, there is concern that animal drugs at residue level concentrations could also perturb the intestinal microbiome composition and modify the antimicrobial resistance profile of the human intestinal microbiota. This review provides updated information on the VICH GL#36(R2), on evaluating the safety of veterinary drug residues in animal-derived foods and their effects on the human intestinal microbiome; discusses critical research knowledge gaps and challenges in evaluating the impact of drug residues in animal-derived foods on the human intestinal microbiome; and analyzes integrated basic and applied research approaches, currently being conducted at FDA, on studies that specifically address key regulatory science questions. Moreover, this review aims to emphasize future research needs on scientific methodology and provides general recommendations on drug inactivation, bioavailability, and antimicrobial resistance, to improve the safety evaluation and risk assessment of antimicrobial residues and their impact on the gastrointestinal microbiota, with the goal of ensuring food safety.
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Affiliation(s)
- Silvia Aurora Piñeiro
- Division of Human Food Safety, Center for Veterinary Medicine, U.S. Food and Drug Administration, Rockville, MD, USA
| | - Carl Edward Cerniglia
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
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Khare S, DeLoid GM, Molina RM, Gokulan K, Couvillion SP, Bloodsworth KJ, Eder EK, Wong AR, Hoyt DW, Bramer LM, Metz TO, Thrall BD, Brain JD, Demokritou P. Effects of ingested nanocellulose on intestinal microbiota and homeostasis in Wistar Han rats. NANOIMPACT 2020; 18:100216. [PMID: 32190784 PMCID: PMC7080203 DOI: 10.1016/j.impact.2020.100216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Micron scale cellulose materials are "generally regarded as safe" (GRAS) as binders and thickeners in food products. However, nanocellulose materials, which have unique properties that can improve food quality and safety, have not received US-Food and Drug Administration (FDA) approval as food ingredients. In vitro and in vivo toxicological studies of ingested nanocellulose revealed minimal cytotoxicity, and no subacute in vivo toxicity. However, ingested materials may modulate gut microbial populations, or alter aspects of intestinal function not elucidated by toxicity testing, which could have important health implications. Here, we report the results of studies conducted in a rat gavage model to assess the effects of ingested cellulose nanofibrils (CNF) on the fecal microbiome and metabolome, intestinal epithelial expression of cell junction genes, and ileal cytokine production. Feces, plasma, and ilea were collected from Wistar Han rats before and after five weeks of biweekly gavages with water or cream, with or without 1% CNF. CNF altered microbial diversity, and diminished specific species that produce short chain fatty acids, and that are associated with increased serum insulin and IgA production. CNF had few effects on the fecal metabolome, with significant changes in only ten metabolites of 366 measured. Exposure to CNF also altered expression of epithelial cell junction genes, and increased production of cytokines that modulate proliferation of CD8 T cells. These perturbations likely represent initiation of an adaptive immune response, however, no associated pathology was seen within the duration of the study. Additional studies are needed to better understand the health implications of these changes in long term.
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Affiliation(s)
- Sangeeta Khare
- Division of Microbiology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR 72079, USA
| | - Glen M. DeLoid
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Ramon M. Molina
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Kuppan Gokulan
- Division of Microbiology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR 72079, USA
| | - Sneha P. Couvillion
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Kent J. Bloodsworth
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Elizabeth K. Eder
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Allison R. Wong
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - David W. Hoyt
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Lisa M. Bramer
- Computing & Analytics Division, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA
| | - Thomas O. Metz
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Brian D. Thrall
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Joseph D. Brain
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
- corresponding author: Philip Demokritou,
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12
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Gemeda BA, Amenu K, Magnusson U, Dohoo I, Hallenberg GS, Alemayehu G, Desta H, Wieland B. Antimicrobial Use in Extensive Smallholder Livestock Farming Systems in Ethiopia: Knowledge, Attitudes, and Practices of Livestock Keepers. Front Vet Sci 2020; 7:55. [PMID: 32175334 PMCID: PMC7055293 DOI: 10.3389/fvets.2020.00055] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/22/2020] [Indexed: 01/04/2023] Open
Abstract
Antimicrobial resistance (AMR) is a major public health threat, and inappropriate antimicrobial use (AMU) in food animal production can contribute to the global burden of AMR in humans. This study was conducted to understand knowledge, attitude, and practice (KAP) of smallholder livestock owners regarding antimicrobial use, residue, and resistance in three agro-ecological zones and production systems in Ethiopia. A cross-sectional study based on structured interviews was conducted. Twenty-one items were used to assess farmers' KAP. Item response theory (IRT) model and Cronbach's alpha were used to assess the KAP measurement scales. Inferential analyses were used to compare the differences in the practices in terms of the farm and socio-economic characteristics. There was a difference in the type of antimicrobials reported use between agro-ecological zones and production systems. Pastoralists most commonly used antibiotics (86.7%) followed by anthelminthics (70.8%). Overall, tetracyclines (36.4%), aminoglycosides (31.3%), and trimethoprim-sulfonamides (6.2%) were the most frequently used classes of antibiotics across the study sites. Human preparation antibiotics (tetracyclines) were also being used for veterinary purposes by 18.5% of pastoralist households. About 81.6% of livestock owners surveyed reported to have access to veterinary drugs although access varied between agro-ecological zones and production system. About 72.3% of pastoralists administered antibiotics by not following through the full treatment course. Moreover, 70% of respondents were not aware of the recommended withdrawal periods of milk and meat after antibiotic treatment. It was noticed that around 80 and 70% of respondents had a tendency to give doses higher or lower than recommended of antimicrobials, respectively. The study confirms the need for interventions to increase knowledge among smallholder farmers to improve the way antimicrobials in general and antibiotics in particular are used in these settings. In addition, professional involvement, supervision, and guidance can also lead to more efficient antimicrobial use by smallholder livestock owners. The study also highlights the need for research into the development of usable tools that measure antibiotic knowledge and attitudes.
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Affiliation(s)
- Biruk Alemu Gemeda
- Animal and Human Health Research Program, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Kebede Amenu
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Ulf Magnusson
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ian Dohoo
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada
| | | | - Gezahegn Alemayehu
- Animal and Human Health Research Program, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Hiwot Desta
- Animal and Human Health Research Program, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Barbara Wieland
- Animal and Human Health Research Program, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
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13
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Li M, Xu G, Yu R, Wang Y, Yu Y. Uptake and accumulation of pentachloronitrobenzene in pak choi and the human health risk. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:109-120. [PMID: 31037581 DOI: 10.1007/s10653-019-00305-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
Nowadays, nanocarbon is widely employed to enwrap into fertilizers. However, the influence of nanocarbon on the transportation of contaminants from soil to plants and its mechanism remain unclear. In this study, pentachloronitrobenzene (PCNB), a typical organochlorine fungicide utilized all over the world, was chosen as the target contaminant to investigate the influence of nanocarbon on its transportation in soil-pak choi system. The maximum PCNB concentration in the root and leaf reached to 112 and 86 ng/g, respectively, demonstrating that PCNB would be absorbed by pak choi. The ratio of PCNB between leaf and root indicated that nanocarbon promoted root of pak choi to absorb PCNB. The transportation of PCNB inside plant was inhibited when pak choi was planted in soil containing higher concentration of nanocarbon. Human risk assessment showed that people consuming the pak choi in this study would not experience risk. However, in vitro toxicity test indicated that PCNB could directly impair intestinal epithelial cells (Caco-2 cells) and thus pose a potential risk to human intestine.
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Affiliation(s)
- Ming Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guanghui Xu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rui Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Yang Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
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14
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Effects of Acute and Chronic Exposure to Residual Level Erythromycin on Human Intestinal Epithelium Cell Permeability and Cytotoxicity. Microorganisms 2019; 7:microorganisms7090325. [PMID: 31489925 PMCID: PMC6780317 DOI: 10.3390/microorganisms7090325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/11/2019] [Accepted: 08/31/2019] [Indexed: 12/16/2022] Open
Abstract
Residual concentrations of erythromycin in food could result in gastrointestinal tract exposure that potentially poses a health-hazard to the consumer, affecting intestinal epithelial permeability, barrier function, microbiota composition, and antimicrobial resistance. We investigated the effects of erythromycin after acute (48 h single treatment with 0.03 μg/mL to 300 μg/mL) or chronic (repeated treatment with 0.3 µg/mL and 300 µg/mL erythromycin for five days) exposures on the permeability of human colonic epithelial cells, a model that mimics a susceptible intestinal surface devoid of commensal microbiota. Transepithelial electrical resistance (TER) measurements indicated that erythromycin above 0.3 µg/mL may compromise the epithelial barrier. Acute exposure increased cytotoxicity, while chronic exposure decreased the cytotoxicity. Quantitative PCR analysis revealed that only ICAM1 (intercellular adhesion molecule 1) was up-regulated during 0.3 μg/mL acute-exposure, while ICAM1, JAM3 (junctional adhesion molecule 3), and ITGA8 (integrin alpha 8), were over-expressed in the 300 μg/mL acute treatment group. However, during chronic exposure, no change in the mRNA expression was observed at 0.3 μg/mL, and only ICAM2 was significantly up-regulated after 300 μg/mL. ICAM1 and ICAM2 are known to be involved in the formation of extracellular matrices. These gene expression changes may be related to the immunoregulatory activity of erythromycin, or a compensatory mechanism of the epithelial cells to overcome the distress caused by erythromycin due to increased permeability.
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15
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Orr SE, Gokulan K, Boudreau M, Cerniglia CE, Khare S. Alteration in the mRNA expression of genes associated with gastrointestinal permeability and ileal TNF-α secretion due to the exposure of silver nanoparticles in Sprague-Dawley rats. J Nanobiotechnology 2019; 17:63. [PMID: 31084603 PMCID: PMC6513523 DOI: 10.1186/s12951-019-0499-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/04/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Silver ions from silver nanoparticles (AgNP) or AgNPs themselves itself that are ingested from consumer health care products or indirectly from absorbed food contact material can interact with the gastrointestinal tract (GIT). The permeability of the GIT is strictly regulated to maintain barrier function and proper nutrient absorption. The single layer intestinal epithelium adheres and communicates actively to neighboring cells and the extracellular matrix through different cell junctions. In the current study, we hypothesized that oral exposure to AgNPs may alter the intestinal permeability and expression of genes controlling cell junctions. Changes in cell junction gene expression in the ileum of male and female rats administered different sizes of AgNP for 13-weeks were assessed using qPCR. RESULTS The results of this study indicate that AgNPs have an altering effect on cell junctions that are known to dictate intestinal permeability. mRNA expression of genes representing tight junction (Cldn1, Cldn5, Cldn6, Cldn10 and Pecam1), focal adhesion (Cav1, Cav2, and Itgb2), adherens junction (Pvrl1, Notch1, and Notch2), and hemidesmosome (Dst) groups were upregulated significantly in females treated with 10 nm AgNP, while no change or downregulation of same genes was detected in male animals. In addition, a higher concentration of pro-inflammatory cytokine, TNF-α, was noticed in AgNP-treated female animals as compared to controls. CONCLUSIONS This study proposes that interaction of silver with GIT could potentially initiate an inflammatory process that could lead to changes in the gastrointestinal permeability and/or nutrient deficiencies in sex-specific manner. Fully understanding the mechanistic consequences of oral AgNP exposure may lead to stricter regulation for the commercial usage of AgNPs and/or improved clinical therapy in the future.
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Affiliation(s)
- Sarah E Orr
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Kuppan Gokulan
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Mary Boudreau
- Division of Biochemical Toxicology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Carl E Cerniglia
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Sangeeta Khare
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA.
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16
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Gokulan K, Kolluru P, Cerniglia CE, Khare S. Dose-Dependent Effects of Aloin on the Intestinal Bacterial Community Structure, Short Chain Fatty Acids Metabolism and Intestinal Epithelial Cell Permeability. Front Microbiol 2019; 10:474. [PMID: 30972034 PMCID: PMC6443721 DOI: 10.3389/fmicb.2019.00474] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 02/25/2019] [Indexed: 12/31/2022] Open
Abstract
Aloe leaf or purified aloin products possess numerous therapeutic and pharmaceutical properties. It is widely used as ingredients in a variety of food, cosmetic and pharmaceutical products. Animal studies have shown that consumption of aloe or purified aloin cause intestinal goblet cell hyperplasia, and malignancy. Here, we tested antibacterial effects of aloin, against intestinal commensal microbiota. Minimum inhibitory concentration of aloin for several human commensal bacterial species (Gram-positive and Gram-negative) ranged from 1 to 4 mg/ml. Metabolism studies indicated that Enterococcus faecium was capable of degrading aloin into aloe-emodin at a slower-rate compared to Eubacterium spp. As a proof of concept, we incubated 3% rat fecal-slurry (an in vitro model to simulate human colon content) with 0.5, 1, and 2 mg/ml of aloin to test antimicrobial properties. Low aloin concentrations showed minor perturbations to intestinal bacteria, whereas high concentration increased Lactobacillus sp. counts. Aloin also decreased butyrate-production in fecal microbiota in a dose-dependent manner after 24 h exposure. The 16S rRNA sequence-data revealed that aloin decreases the abundance of butyrate-producing bacterial species. Transepithelial resistant result revealed that aloin alters the intestinal barrier-function at higher concentrations (500 μM). In conclusion, aloin exhibits antibacterial property for certain commensal bacteria and decreases butyrate-production in a dose -dependent manner. HIGHLIGHTS –Aloin exhibits antibacterial properties for certain intestinal commensal bacteria. –In rat fecal slurry (an in vitro model to simulate human colon content), longer aloin exposure (24 h) decreases the butyrate production in dose dependent manner. –The 16s rRNA sequencing data show that aloin decreased the abundance of butyrate producing bacterial species. –Rat intestinal commensal bacteria metabolized aloin into aloe-emodin. –Aloin altered the intestinal epithelial cells barrier integrity, however, the metabolic product of aloin - Aloe-emodin did not alter epithelial cells permeability.
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Affiliation(s)
- Kuppan Gokulan
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, Jefferson, AR, United States
| | - Pranav Kolluru
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, Jefferson, AR, United States
| | - Carl E Cerniglia
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, Jefferson, AR, United States
| | - Sangeeta Khare
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, Jefferson, AR, United States
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17
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Huang LF, Jia B, Jiang L, Liu WL, Xia LY, Lv YK. Preparation of restricted-access material precolumns by grafting δ-gluconolactone onto a hybrid silica monolithic column for on-line solid-phase extraction of tetracycline residues from milk. J Sep Sci 2018; 42:843-850. [PMID: 30569534 DOI: 10.1002/jssc.201801130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/11/2018] [Accepted: 12/11/2018] [Indexed: 12/16/2022]
Abstract
A restricted-access material-hybrid monolithic column was prepared based on single-component organosiloxane and dynamic grafting of δ-gluconolactone for on-line solid phase extraction of tetracycline antibiotic residues from milk. The hybrid monolithic column was prepared in a stainless-steel chromatographic column using methyltrimethoxysilane as the single precursor. δ-Gluconolactone was covalently coupled to aminopropyl derivatized hybrid monolithic column, which formed hydrophilic structures on the surface of the pore of the restricted-access material-hybrid monolithic column. The columns were characterized by scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, nitrogen adsorption, contact angle analysis, dynamic adsorption, and chromatographic performance evaluation. The restricted-access material-hybrid monolithic column was applied to the on-line extraction of tetracycline residues from milk. An enrichment factor of 15.8 and a good sample clean-up effect were obtained under the optimized conditions. The recoveries of the three spiked milk samples were between 81.7 and 102.5% with relative standard deviations (n = 3) in the range of 2-5%. The limits of detection (S/N = 3) for target compounds were in the range of 3.80-9.03 μg/kg. The results show that the on-line extraction using the restricted-access material-hybrid monolithic column was powerful for food sample pretreatment with high selectivity and good clean-up effect.
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Affiliation(s)
- Li-Fei Huang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
| | - Bo Jia
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
| | - Lin Jiang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
| | - Wei-Lun Liu
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
| | - Li-Ya Xia
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
| | - Yun-Kai Lv
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education & College of Chemistry and Environmental Science, Hebei University, Baoding, P. R. China
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Rasheed HU, Lv X, Zhang S, Wei W, ullah N, Xie J. Ternary MIL-100(Fe)@Fe3O4/CA magnetic nanophotocatalysts (MNPCs): Magnetically separable and Fenton-like degradation of tetracycline hydrochloride. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.09.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Sheng W, Chang Q, Shi Y, Duan W, Zhang Y, Wang S. Visual and fluorometric lateral flow immunoassay combined with a dual-functional test mode for rapid determination of tetracycline antibiotics. Mikrochim Acta 2018; 185:404. [PMID: 30088104 DOI: 10.1007/s00604-018-2945-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 08/02/2018] [Indexed: 01/11/2023]
Abstract
A fluorometric immunochromatographic assay (FICA) is described where ZnCdSe/ZnS quantum dots (QDs) act as fluorescent label and gold nanoparticles (AuNPs) act as quencher. The assay works in the "turn-on" mode, i.e. the fluorescent signal (best measured at excitation/emission wavelengths of 302/525 nm) increases with the increase of analyte concentration. This assay can detect tetracycline antibiotics including tetracycline, oxytetracycline, chlortetracycline, and doxycycline. It is not interfered by other veterinary drugs. The visual limits of detection (LODs) for the tetracycline antibiotics are 2 μg·L-1 in buffer, 20 μg·L-1 in milk, and 40 μg·kg-1 in animal muscle tissue. The assay (including sample treatment) can be performed within 30 min. The FICA based on "turn on" mode is more sensitive than the colloidal gold-based immunochromatographic assay (CGICA) and quantum dot-based immunochromatographic assay (QDICA) based on "turn off" mode using either AuNPs or QDs as signal labels. One strip can simultaneously provide the fluorescent test results in the "turn on" mode on the basis of QD luminescence quenching under UV light. The colorimetric test is of the "turn off" mode based on the formation of a red coloration due to the use of AuNPs under natural light. The use of such a dual-functional test mode allows for rapid semi-quantitative determination of tetracycline antibiotics in milk and tissue samples. Graphical abstract Schematoc of a fluorometric immunochromatographic assay (FICA) based on fluorescence quenching of quantum dot (QD) by gold nanoparticle (AuNP) combined with a dual-functional test mode under UV light (turn on mode) and natural light (turn off mode) to visually detect tetracycline antibiotics.
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Affiliation(s)
- Wei Sheng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Qing Chang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yingjie Shi
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Wenxia Duan
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yan Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China. .,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
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