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Kaushal A, Khurana I, Yadav P, Allawadhi P, Banothu AK, Neeradi D, Thalugula S, Barani PJ, Naik RR, Navik U, Bharani KK, Khurana A. Advances in therapeutic applications of silver nanoparticles. Chem Biol Interact 2023; 382:110590. [PMID: 37268200 DOI: 10.1016/j.cbi.2023.110590] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 01/19/2022] [Revised: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 06/04/2023]
Abstract
Nanotechnology is one of the most appealing area for developing new applications in biotechnology and medicine. For decades, nanoparticles have been extensively studied for a variety of biomedical applications. Silver has evolved into a potent antibacterial agent that can be used in a variety of nanostructured materials of various shapes and sizes. Silver nanoparticles (AgNP) based antimicrobial compounds are employed in a wide range of applications, including medicinal uses, surface treatment and coatings, the chemical and food industries, and agricultural productivity. When designing formulations for specific applications, the size, shape, and surface area of AgNPs are all crucial structural aspects to consider. Different methods for producing AgNPs with varying sizes and forms that are less harmful have been devised. The anticancer, anti-inflammatory, antibacterial, antiviral, and anti-angiogenic properties of AgNPs have been addressed in this review, as well as their generation and processes. Herein, we have reviewed the advances in therapeutic applications of AgNPs, as well as their limitations and barriers for future applications.
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Affiliation(s)
- Ashutosh Kaushal
- Department of Pharmaceutical Chemistry, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
| | - Isha Khurana
- Department of Pharmaceutical Chemistry, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
| | - Poonam Yadav
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, 151401, Punjab, India
| | - Prince Allawadhi
- Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Anil Kumar Banothu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Rajendranagar, Hyderabad, 500030, PVNRTVU, Telangana, India
| | - Dinesh Neeradi
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Rajendranagar, Hyderabad, 500030, PVNRTVU, Telangana, India
| | - Sunitha Thalugula
- Department of Pharmacology, University College of Pharmaceutical Sciences (UCPS), Kakatiya University, Warangal, 506009, Telangana, India
| | - Percy Jasmine Barani
- Department of Chemistry, Wesley Degree College for Women, Osmania University, Secunderabad, 500025, Telangana, India
| | | | - Umashanker Navik
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, 151401, Punjab, India.
| | - Kala Kumar Bharani
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal, 506166, PVNRTVU, Telangana, India.
| | - Amit Khurana
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Rajendranagar, Hyderabad, 500030, PVNRTVU, Telangana, India; Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal, 506166, PVNRTVU, Telangana, India; Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital, Pauwelsstr. 30, D-52074, Aachen, Germany.
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Assar DH, Mokhbatly AAA, ELazab MFA, Ghazy EW, Gaber AA, Elbialy ZI, Hassan AA, Nabil A, Asa SA. Silver nanoparticles induced testicular damage targeting NQO1 and APE1 dysregulation, apoptosis via Bax/Bcl-2 pathway, fibrosis via TGF-β/α-SMA upregulation in rats. Environ Sci Pollut Res Int 2023; 30:26308-26326. [PMID: 36367645 PMCID: PMC9995601 DOI: 10.1007/s11356-022-23876-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
In medicine, silver nanoparticles (AgNPs) are employed often. They do, however, have negative impacts, particularly on the reproductive organs. This research aimed to assess AgNP impact on the testis and the possible intracellular mechanisms to induce testicular deteriorations in rats at various concentrations and different time intervals. Sprague Dawley rats (n = 40) were allocated into four equal groups: the control one, and three other groups injected intra-peritoneally with AgNP solution 0.25, 0.5, and 1 mg/kg b.w. respectively for 15 and 30 days. Our findings revealed that AgNPs reduced body and testicular weights, estradiol (E2) and testosterone (T) hormone levels, and sperm parameters while elevating the nitric oxide and malondialdehyde levels with inhibition of reduced glutathione contents in testicular tissue. Interestingly, AgNPs significantly upregulated the testicular inducible nitric oxide synthase, B cell lymphoma 2 (Bcl-2)-associated X, transforming growth factor, and alpha-smooth muscle actin (α-SMA) expression levels. However, apurinic/apyrimidinic endo deoxyribonuclease 1 (APE1), NAD (P) H quinone dehydrogenase 1 (NQO1), and Bcl-2 expression levels were all downregulated indicating exhaustion of body antioxidant and repairing defense mechanisms in testicles in comparison with the control rats. Various histological alterations were also detected which dramatically increased in rats sacrificed after 30 days such as loss of the lining cells of seminiferous tubules with no spermatozoa and tubular irregularities associated with thickening of their basement membranes. Immunolabeling implicated in the apoptotic pathway revealed a negative expression of Bcl-2 and marked immunoreactivity for caspase-3 after 30 days of AgNP treatment in comparison to the control rats. To our knowledge, there have been no previous publications on the role of the α-SMA, APE1, and NQO1 genes in the molecular pathogenesis of AgNP testicular cytotoxicity following AgNP acute and chronic exposure.
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Affiliation(s)
- Doaa H. Assar
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Abd-Allah A. Mokhbatly
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Mohamed F. Abou ELazab
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Emad W. Ghazy
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Ahmed A. Gaber
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Zizy I. Elbialy
- Department of Fish Processing and Biotechnology, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
| | - Ayman A. Hassan
- High Technological Institute of Applied Health Sciences, Egypt Liver Research Institute and Hospital (ELRIAH), Sherbin, ElMansora Egypt
| | - Ahmed Nabil
- Beni-Suef University, Beni-Suef, Egypt, Egypt Liver Research Institute and Hospital (ELRIAH), Sherbin, ElMansora Egypt
| | - Samah Abou Asa
- Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516 Egypt
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Guilger-Casagrande M, Bilesky-José N, Sousa BT, Oliveira HC, Fraceto LF, Lima R. Effects of biogenic silver and iron nanoparticles on soybean seedlings (Glycine max). BMC Plant Biol 2022; 22:255. [PMID: 35606722 PMCID: PMC9128269 DOI: 10.1186/s12870-022-03638-1] [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] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Biogenic metallic nanoparticles have been emerging as a promising alternative for the control of phytopathogens and as nanofertilizers. In this way, it is essential to investigate the possible impacts of these new nanomaterials on plants. In this study, the effects of soil contamination with biogenic silver (AgNPs) and iron (FeNPs) with known antifungal potential were investigated on morphological, physiological and biochemical parameters of soybean seedlings. RESULTS The exposure of plants/seedlings to AgNPs induced the reduction of root dry weight followed by oxidative stress in this organ, however, adaptive responses such as a decrease in stomatal conductance without impacts on photosynthesis and an increase in intrinsic water use efficiency were also observed. The seedlings exposed to FeNPs had shown an increase in the levels of oxygen peroxide in the leaves not accompanied by lipid peroxidation, and an increase in the expression of POD2 and POD7 genes, indicating a defense mechanism by root lignification. CONCLUSION Our results demonstrated that different metal biogenic nanoparticles cause different effects on soybean seedlings and these findings highlight the importance of investigating possible phytotoxic effects of these nanomaterials for the control of phytopathogens or as nanofertilizers.
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Affiliation(s)
- Mariana Guilger-Casagrande
- Laboratory for Evaluation of the Bioactivity and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Rod. Raposo Tavares, km 92.5 – Vila Artura, Sorocaba, São Paulo, 18023-000 Brazil
- Laboratory of Environmental Nanotechnology, São Paulo State University (UNESP), Av. Três de Março 511, Sorocaba, São Paulo, 18087-180 Brazil
| | - Natália Bilesky-José
- Laboratory for Evaluation of the Bioactivity and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Rod. Raposo Tavares, km 92.5 – Vila Artura, Sorocaba, São Paulo, 18023-000 Brazil
| | - Bruno Teixeira Sousa
- Departament of Animal and Plant Biology, University of Londrina (UEL), Rod. Celso Garcia Cid km 380, Londrina, Paraná, 86057-970 Brazil
| | - Halley Caixeta Oliveira
- Departament of Animal and Plant Biology, University of Londrina (UEL), Rod. Celso Garcia Cid km 380, Londrina, Paraná, 86057-970 Brazil
| | - Leonardo Fernandes Fraceto
- Laboratory of Environmental Nanotechnology, São Paulo State University (UNESP), Av. Três de Março 511, Sorocaba, São Paulo, 18087-180 Brazil
| | - Renata Lima
- Laboratory for Evaluation of the Bioactivity and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Rod. Raposo Tavares, km 92.5 – Vila Artura, Sorocaba, São Paulo, 18023-000 Brazil
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Sousa A, Bradshaw TD, Ribeiro D, Fernandes E, Freitas M. Pro-inflammatory effects of silver nanoparticles in the intestine. Arch Toxicol 2022; 96:1551-1571. [PMID: 35296919 DOI: 10.1007/s00204-022-03270-w] [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: 01/12/2022] [Accepted: 02/23/2022] [Indexed: 11/26/2022]
Abstract
Nanotechnology is a promising technology of the twenty-first century, being a rapidly evolving field of research and industrial innovation widely applied in our everyday life. Silver nanoparticles (AgNP) are considered the most commercialized nanosystems worldwide, being applied in diverse sectors, from medicine to the food industry. Considering their unique physical, chemical and biological properties, AgNP have gained access into our daily life, with an exponential use in food industry, leading to an increased inevitable human oral exposure. With the growing use of AgNP, several concerns have been raised, in recent years, about their potential hazards to human health, more precisely their pro-inflammatory effects within the gastrointestinal system. Therefore a review of the literature has been undertaken to understand the pro-inflammatory potential of AgNP, after human oral exposure, in the intestine. Despite the paucity of information reported in the literature about this issue, existing studies indicate that AgNP exert a pro-inflammatory action, through generation of oxidative stress, accompanied by mitochondrial dysfunction, interference with transcription factors and production of cytokines. However, further studies are needed to elucidate the mechanistic pathways and molecular targets involved in the intestinal pro-inflammatory effects of AgNP.
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Affiliation(s)
- Adelaide Sousa
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal
| | - Tracey D Bradshaw
- Centre for Biomolecular Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Daniela Ribeiro
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal
- Faculty of Agrarian Sciences and Environment, University of the Azores, 9700-042, Angra do Heroísmo, Açores, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal.
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313, Porto, Portugal.
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Ragamin A, Fieten KB, Tupker RA, de Wit J, van Mierlo MMF, Jansen MS, Bronner MB, Schappin R, Schuren FHJ, Romeijn MLE, Arents BWM, Polinder S, de Graaf M, Rustemeyer T, Schuttelaar MLA, Pasmans SGMA. The effectiveness of antibacterial therapeutic clothing based on silver or chitosan as compared with non-antibacterial therapeutic clothing in patients with moderate to severe atopic dermatitis (ABC trial): study protocol for a pragmatic randomized controlled trial. Trials 2021; 22:902. [PMID: 34895292 PMCID: PMC8665308 DOI: 10.1186/s13063-021-05836-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 11/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease that affects 10 to 20% of children and between 2 and 15% of the adults in Western Europe. Since 2000, therapeutic clothing or functional textiles based on silver or chitosan as antibacterial agents were introduced for AD. These agents aim to reduce skin colonization with Staphylococcus (S.) aureus. Increased colonization with S. aureus is correlated with increased AD severity. The antimicrobial effects of silver and chitosan have been demonstrated before. At this point, there is insufficient evidence for the effectiveness of antibacterial therapeutic clothing in patients with AD. METHODS This is a pragmatic randomized controlled double-blind multi-center trial comparing the effectiveness of antibacterial therapeutic clothing based on silver or chitosan as compared with non-antibacterial therapeutic clothing in patients with moderate to severe AD. A total of 165 participants, aged 0 to 80, diagnosed with moderate to severe AD are included. The study is performed in the Erasmus MC University Medical Center, University Medical Center Groningen, University Medical Center Utrecht, Amsterdam University Medical Centers, and St. Antonius Hospital Nieuwegein. Patients will be randomized 1:1:1 into one of the three intervention groups: group A will receive therapeutic clothing without antimicrobial agents, group B will receive microbial growth reducing therapeutic clothing based on chitosan, and group C will receive antimicrobial clothing based on silver. All therapeutic clothing is to be worn at night during the 12-month intervention period. Usual care is continued. The primary objective is to assess the effectiveness of antibacterial clothing (silver and chitosan group) as compared to non-antibacterial clothing assessed with the Eczema Area and Severity Index at 12 months compared to baseline. Secondary outcomes include between-group differences in physician- and patient-reported outcome measures, topical therapy use, S. aureus skin colonization, and safety. Data will be collected at baseline and after 1 month, 3 months, 6 months, and 12 months. A cost-effectiveness analysis will be performed. DISCUSSION This trial will provide data on the effectiveness, cost-effectiveness, and safety of antibacterial therapeutic clothing for patients with AD. TRIAL REGISTRATION ClinicalTrials.gov NCT04297215. Registered on 5 March 2020.
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Affiliation(s)
- Aviël Ragamin
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Dermatology, Center of Pediatric Dermatology, Sophia Children's Hospital, Erasmus MC University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Karin B Fieten
- Dutch Asthma Center Davos, Davos, Switzerland
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Ron A Tupker
- Department of Dermatology, Sint Antonius Hospital, 3435, CM, Nieuwegein, The Netherlands
| | - Jill de Wit
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Minke M F van Mierlo
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Dermatology, Center of Pediatric Dermatology, Sophia Children's Hospital, Erasmus MC University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Marieke S Jansen
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Dermatology, Center of Pediatric Dermatology, Sophia Children's Hospital, Erasmus MC University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Madelon B Bronner
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Dermatology, Center of Pediatric Dermatology, Sophia Children's Hospital, Erasmus MC University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Renske Schappin
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | | | - Margreet L E Romeijn
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bernd W M Arents
- Dutch Patient Association for People with Atopic Dermatitis (VMCE: Vereniging voor Mensen met Constitutioneel Eczeem), Nijkerk, The Netherlands
| | - Suzanne Polinder
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Marlies de Graaf
- Department of Pediatric Dermatology and Allergology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Thomas Rustemeyer
- Department of Dermatology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Marie L A Schuttelaar
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Suzanne G M A Pasmans
- Department of Dermatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
- Department of Dermatology, Center of Pediatric Dermatology, Sophia Children's Hospital, Erasmus MC University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands.
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Stabryla LM, Johnston KA, Diemler NA, Cooper VS, Millstone JE, Haig SJ, Gilbertson LM. Role of bacterial motility in differential resistance mechanisms of silver nanoparticles and silver ions. Nat Nanotechnol 2021; 16:996-1003. [PMID: 34155383 DOI: 10.1038/s41565-021-00929-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 05/14/2021] [Indexed: 05/27/2023]
Abstract
Unlike conventional antimicrobials, the study of bacterial resistance to silver nanoparticles (AgNPs) remains in its infancy and the mechanism(s) through which it evolves are limited and inconclusive. The central question remains whether bacterial resistance is driven by the AgNPs, released Ag(I) ions or a combination of these and other factors. Here, we show a specific resistance in an Escherichia coli K-12 MG1655 strain to subinhibitory concentrations of AgNPs, and not Ag(I) ions, as indicated by a statistically significant greater-than-twofold increase in the minimum inhibitory concentration occurring after eight repeated passages that was maintained after the AgNPs were removed and reintroduced. Whole-population genome sequencing identified a cusS mutation associated with the heritable resistance that possibly increased silver ion efflux. Finally, we rule out the effect of particle aggregation on resistance and suggest that the mechanism of resistance may be enhanced or mediated by flagellum-based motility.
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Affiliation(s)
- Lisa M Stabryla
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
| | | | - Nathan A Diemler
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vaughn S Cooper
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jill E Millstone
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sarah-Jane Haig
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Leanne M Gilbertson
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
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Thwala M, Klaine S, Musee N. Exposure Media and Nanoparticle Size Influence on the Fate, Bioaccumulation, and Toxicity of Silver Nanoparticles to Higher Plant Salvinia minima. Molecules 2021; 26:molecules26082305. [PMID: 33923373 PMCID: PMC8071571 DOI: 10.3390/molecules26082305] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/04/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) are favoured antibacterial agents in nano-enabled products and can be released into water resources where they potentially elicit adverse effects. Herein, interactions of 10 and 40 nm AgNPs (10-AgNPs and 40-AgNPs) with aquatic higher plant Salvinia minima at 600 µg/L in moderately hard water (MHW), MHW of raised calcium (Ca2+), and MHW containing natural organic matter (NOM) were examined. The exposure media variants altered the AgNPs’ surface properties, causing size-dependent agglomeration. The bio-accessibility in the ascending order was: NOM < MHW < Ca2+, was higher in plants exposed to 10-AgNPs, and across all exposures, accumulation was higher in roots compared to fronds. The AgNPs reduced plant growth and the production of chlorophyll pigments a and b; the toxic effects were influenced by exposure media chemistry, and the smaller 10-AgNPs were commonly the most toxic relative to 40-AgNPs. The toxicity pattern was linked to the averagely higher dissolution of 10-AgNPs compared to the larger counterparts. The scanning electron microscopy and X-ray fluorescence analytical techniques were found limited in examining the interaction of the plants with AgNPs at the low exposure concentration used in this study, thus challenging their applicability considering the even lower predicted environmental concentrations AgNPs.
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Affiliation(s)
- Melusi Thwala
- Water Centre, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;
- Zoology Department, University of Johannesburg, Auckland Park 2006, South Africa
- Department of Environmental Health, Nelson Mandela University, Port Elizabeth 6031, South Africa
- Centre for Environmental Management, University of the Free State, Bloemfontein 9300, South Africa
| | - Stephen Klaine
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA;
| | - Ndeke Musee
- Emerging Contaminants Ecological and Risk Assessment (ECERA) Research Group, Department of Chemical Engineering, University of Pretoria, Pretoria 0001, South Africa
- Correspondence: or
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Li L, Bi Z, Hu Y, Sun L, Song Y, Chen S, Mo F, Yang J, Wei Y, Wei X. Silver nanoparticles and silver ions cause inflammatory response through induction of cell necrosis and the release of mitochondria in vivo and in vitro. Cell Biol Toxicol 2021; 37:177-191. [PMID: 32367270 DOI: 10.1007/s10565-020-09526-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 01/19/2020] [Accepted: 04/06/2020] [Indexed: 02/05/2023]
Abstract
Owing to the excellent antibacterial and antiviral activity, silver nanoparticles have a widespread use in the food and pharmaceutical industries. With the increase in the production and use of the related products, the potential hazard of silver nanoparticles has aroused public attention. The main purpose of this study is to explore the toxicity of silver nanoparticles and induction of lung inflammation in vitro and in vivo. Here, we validated that small amounts of silver ions dissolved from silver nanoparticles caused the depolarization of plasma membrane, resulting in an overload of intracellular sodium and calcium, and eventually led to the cell necrosis. The blockers of calcium or sodium channels inversed the toxicity of silver ions. Then, we instilled silver nanoparticles or silver nitrate (50 μg per mouse) into the lungs of mice, and this induced pulmonary injury and mitochondrial content release, led to the recruitment of neutrophils to the lung tissue via p38 MAPK pathway. Altogether, these data show that released silver ions from nanoparticles induced cell necrosis through Na+ and Ca2+ influx and triggered pulmonary inflammation through elevating mitochondrial-related contents released from these necrotic cells.
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Affiliation(s)
- Lu Li
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Zhenfei Bi
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yuzhu Hu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Lu Sun
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yanlin Song
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Siyuan Chen
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Fei Mo
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Jingyun Yang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yuquan Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, People's Republic of China.
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Sun J, Wan J, Zhai X, Wang J, Liu Z, Tian H, Xin L. Silver nanoparticles: Correlating particle size and ionic Ag release with cytotoxicity, genotoxicity, and inflammatory responses in human cell lines. Toxicol Ind Health 2021; 37:198-209. [PMID: 33625315 DOI: 10.1177/0748233721996561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The widespread use of silver nanoparticles (AgNPs), their many sources for human exposure, and the ability of AgNPs to enter organisms and induce general toxicological responses have raised concerns regarding their public health and environmental safety. To elucidate the differential toxic effects of polyvinylpyrrolidone-capped AgNPs with different primary particle sizes (i.e. 5, 50, and 75 nm), we performed a battery of cytotoxicity and genotoxicity assays and examined the inflammatory responses in two human cell lines (i.e. HepG2 and A549). Concentration-dependent decreases in cell proliferation and mitochondrial membrane potential and increases in cytokine (i.e. interleukin-6 and interleukin-8) excretion indicated disruption of mitochondrial function and inflammation as the main mediating factors of AgNPs-induced cytotoxicity. An incremental increase in genotoxicity with decreasing AgNPs diameter was noted in HepG2 cells, which was associated with S and G2/M accumulation and transcriptional activation of the GADD45α promoter as reflected by luciferase activity. Dose-related genetic damage, as indicated by Olive tail moment and micronucleus formation, was also observed in A549 cells, but these effects as well as the AgNPs-induced cytotoxicity were more associated with ionic Ag release from nanoparticles (NPs). In summary, the present study addressed different toxicity mechanisms of AgNPs, depending on the cell model, toxicological endpoint, particle size, and degree of Ag+ release from NPs. The results suggest that the GADD45α promoter-driven luciferase reporter cell system provided a rapid screening tool for the identification of genotoxic properties of NPs across a range of different sizes and concentrations.
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Affiliation(s)
- Jiaojiao Sun
- Department of Occupational and Environmental Health, School of Public Health, 177544Medical College of Soochow University, Suzhou, China
| | - Jianmei Wan
- 177544Medical College of Soochow University, Suzhou, China
| | - Xuedi Zhai
- Department of Occupational and Environmental Health, School of Public Health, 177544Medical College of Soochow University, Suzhou, China
| | - Jianshu Wang
- Suzhou Center for Disease Prevention and Control, Suzhou, China
| | - Zhiyong Liu
- Department of Radiochemistry, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Hailin Tian
- Department of Occupational and Environmental Health, School of Public Health, 177544Medical College of Soochow University, Suzhou, China
| | - Lili Xin
- Department of Occupational and Environmental Health, School of Public Health, 177544Medical College of Soochow University, Suzhou, China
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Altwaijry N, El-Masry TA, Alotaibi BS, Tousson E, Alodhayani AA, El-Morshedy K, Elmaghed NA, Sayed AE, Saleh A. Potential therapeutic effects of avenanthramide-C against lung toxicity caused by silver nanoparticles injection in rats. Pak J Pharm Sci 2021; 34:337-343. [PMID: 34275859] [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: 06/13/2023]
Abstract
Most clinical investigations about the impact of nanoparticles on cells and tissues show that nanoparticles may enter the human body by means of respiratory tracts. Humans, animals, plants and environments are continually presented to a wide scope of business items containing silver nanoparticles (Ag NPs) in their piece. Ag NPs, utilized in various consumer products as room showers, surface cleaners, wound dressings, food storage containers and many textiles. The current examination planned to explore the defensive role of Avenanthramide-C (Avns) contrary to the lung toxicity initiated by Ag NPs injection in rats. 40 male Wistar rats were separated into 4 groups (Gp1, control; Gp2, Avns; Gp3, Ag NPs; Gp4, Ag NPs+Avns). Current results revealed that; Ag NPs induced a significant depletion in RBCs count, hemoglobin, platelets counts and a significant increase in total WBCs, lung injury, cyclooxygenase-2 (COX2) and TNFα expressions as compared to control. Treatments of Ag NPs with Avenanthramide-C extract (Ag NPs+Avns) improved the lung structure and blood complete pictures as compared to Ag NPs group.
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Affiliation(s)
- Najla Altwaijry
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Thanaa A El-Masry
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia/Departement of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Badriyah S Alotaibi
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ehab Tousson
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Abdulaziz A Alodhayani
- Family and Community Medicine Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Kadreya El-Morshedy
- Department of Anatomy and Embryology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Nouf A Elmaghed
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | - Asmaa Saleh
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia/Department of Biochemistry, Faculty of Pharmacy, Al Azhar University, Cairo, Egypt
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Abstract
PURPOSE The public fear associated with the novel coronavirus (SARS-CoV-2) pandemic has triggered recently a significant proliferation of supplements touted as potential cures against bacteria and viruses. Colloidal silver has particularly benefited from this rush given its empirically and scientifically documented anti-bacterial and anti-viral actions. The lack of standards in the unregulated supplements industry remains a major roadblock in evaluating the quality and consistency of marketed products or assessing the accuracy of the information provided by manufacturers. This study is the first scientifically rigorous attempt to evaluate commercial silver colloidal products offered for sale on the internet. METHODS Fourteen of the most popular colloidal silver products purchased from Amazon (www.amazon.com) were evaluated using state-of-the-art analytical techniques widely accepted as gold standards for investigating the properties (size, shape) and the dispersion of silver nanoparticles. RESULTS Commercial samples were analysed using UV-Vis, FE-SEM and AAS techniques. In general, the Ag concentration was very close to those claimed by the manufacturer. The colorless product shows no absorbance in the UV-Vis analysis. The FESEM and STEM images confirmed the conclusions of the UV-Vis analysis. CONCLUSION The results of this evaluation show clearly that 70% of the commercial products evaluated contain only ionic silver. Despite the evidence showing that silver nanoparticles are not present, eight of these products are promoted by the manufacturers as 'colloidal silver'. Considering the extensive scientific research showing major differences between silver ionic and silver nanoparticles in terms of mechanisms of action, efficacy and safety, it is clear that this misrepresentation impacts the consumers and must be addressed. This study serves as blueprint for a scientific protocol to be followed by manufacturers for characterizing their silver supplements.
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Affiliation(s)
- Ajeet Kumar
- Ames Electronic Materials Division, South Plainfield, NJ07080, USA
| | - Dan V Goia
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13676, USA
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Kong IC, Ko KS, Koh DC. Evaluation of the Effects of Particle Sizes of Silver Nanoparticles on Various Biological Systems. Int J Mol Sci 2020; 21:E8465. [PMID: 33187117 PMCID: PMC7696109 DOI: 10.3390/ijms21228465] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023] Open
Abstract
Seven biological methods were adopted (three bacterial activities of bioluminescence, enzyme, enzyme biosynthetic, algal growth, seed germination, and root and shoot growth) to compare the toxic effects of two different sizes of silver nanoparticles (AgNPs). AgNPs showed a different sensitivity in each bioassay. Overall, the order of inhibitory effects was roughly observed as follows; bacterial bioluminescence activity ≈ root growth > biosynthetic activity of enzymes ≈ algal growth > seed germination ≈ enzymatic activity > shoot growth. For all bacterial activities (bioluminescence, enzyme, and enzyme biosynthesis), the small AgNPs showed statistically significantly higher toxicity than the large ones (p < 0.0036), while no significant differences were observed among other biological activities. The overall effects on the biological activities (except shoot growth) of the small AgNPs were shown to have about 4.3 times lower EC50 (high toxicity) value than the large AgNPs. These results also indicated that the bacterial bioluminescence activity appeared to be an appropriate method among the tested ones in terms of both sensitivity and the discernment of particle sizes of AgNPs.
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Affiliation(s)
- In Chul Kong
- Department of Environmental Engineering, Yeungnam University, Gyungsan 38541, Korea;
| | - Kyung-Seok Ko
- Geologic Environment Division, Korea Institute of Geoscience & Mineral Resources (KIGAM), Daejeon 34132, Korea;
| | - Dong-Chan Koh
- Geologic Environment Division, Korea Institute of Geoscience & Mineral Resources (KIGAM), Daejeon 34132, Korea;
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El-Sheikh SMA, Khairy MH, Osama E, Metwally MMM, Galal AAA. Nanotechnology improves the therapeutic efficacy of gemcitabine against a human hepatocellular carcinoma cell line and minimizes its in vivo side effects. Naunyn Schmiedebergs Arch Pharmacol 2020; 394:631-643. [PMID: 33104848 DOI: 10.1007/s00210-020-02004-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 08/20/2020] [Accepted: 10/15/2020] [Indexed: 12/16/2022]
Abstract
Nanotechnology has become a promising approach for addressing cancer therapy limitations because it reduces side effects and increases the efficacy of antineoplastic agents. Therefore, this research was designed to compare the in vitro therapeutic efficacy and in vivo adverse effects of gemcitabine (GEM) and gemcitabine-loaded silver nanoparticles (GEM-AgNPs). GEM molecules were successfully attached to AgNP surfaces with a homogenous and spherical shape. The zeta size of AgNPs and GEM-AgNPs was 79.35 ± 3.2 and 75.1 ± 7 nm, respectively. The anticancer effect of AgNPs and GEM-AgNPs was investigated against a human hepatocellular carcinoma cell line (HepG2), and cytotoxic activity was evaluated by MTT assay. Apoptosis/necrosis and cell cycle arrest were also assessed. The cytotoxic activity was recorded in a concentration-dependent way. The findings have shown that GEM-AgNPs induced a better cytotoxic effect with an IC50 value of 13.63 μg/mL compared to GEM (IC50 value of 24.19 μg/mL) or AgNPs alone (IC50 value of 50.6 μg/mL). GEM-AgNPs induced pre-G1 arrest and apoptotic/necrotic cell death. Our in vivo analysis involved the use of 40 male rats assigned equally into the control rats, and rats injected intraperitoneally with GEM (134 mg/kg), AgNPs (1 mg/kg), and GEM-AgNPs (134 mg/kg). GEM and GEM-AgNPs were administered on the 1st, 7th, and 14th day of the experiment. Intraperitoneal GEM injection induced marked hematological, biochemical, hepatorenal, and histopathological alterations, while the loading of GEM in AgNPs to some extent ameliorated these alterations and significantly improved its therapeutic efficacy against HepG2 cells. These findings indicate the potential use of GEM-AgNPs in the clinical setting for anticancer treatment.
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Affiliation(s)
- Sawsan M A El-Sheikh
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Mohamed H Khairy
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Eman Osama
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Mohamed M M Metwally
- Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Azza A A Galal
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt.
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15
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Sillen WMA, Thijs S, Abbamondi GR, De La Torre Roche R, Weyens N, White JC, Vangronsveld J. Nanoparticle treatment of maize analyzed through the metatranscriptome: compromised nitrogen cycling, possible phytopathogen selection, and plant hormesis. Microbiome 2020; 8:127. [PMID: 32907632 PMCID: PMC7488162 DOI: 10.1186/s40168-020-00904-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 08/03/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND The beneficial use of nanoparticle silver or nanosilver may be confounded when its potent antimicrobial properties impact non-target members of natural microbiomes such as those present in soil or the plant rhizosphere. Agricultural soils are a likely sink for nanosilver due to its presence in agrochemicals and land-applied biosolids, but a complete assessment of nanosilver's effects on this environment is lacking because the impact on the natural soil microbiome is not known. In a study assessing the use of nanosilver for phytopathogen control with maize, we analyzed the metatranscriptome of the maize rhizosphere and observed multiple unintended effects of exposure to 100 mg kg-1 nanosilver in soil during a growth period of 117 days. RESULTS We found several unintended effects of nanosilver which could interfere with agricultural systems in the long term. Firstly, the archaea community was negatively impacted with a more than 30% decrease in relative abundance, and as such, their involvement in nitrogen cycling and specifically, nitrification, was compromised. Secondly, certain potentially phytopathogenic fungal groups showed significantly increased abundances, possibly due to the negative effects of nanosilver on bacteria exerting natural biocontrol against these fungi as indicated by negative interactions in a network analysis. Up to 5-fold increases in relative abundance have been observed for certain possibly phytopathogenic fungal genera. Lastly, nanosilver exposure also caused a direct physiological impact on maize as illustrated by increased transcript abundance of aquaporin and phytohormone genes, overall resulting in a stress level with the potential to yield hormetically stimulated plant root growth. CONCLUSIONS This study indicates the occurrence of significant unintended effects of nanosilver use on corn, which could turn out to be negative to crop productivity and ecosystem health in the long term. We therefore highlight the need to include the microbiome when assessing the risk associated with nano-enabled agriculture. Video Abstract.
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Affiliation(s)
- Wouter M. A. Sillen
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Sofie Thijs
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Gennaro Roberto Abbamondi
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
- Institute of Biomolecular Chemistry, National Research Council of Italy, Via Campi Flegrei 34, Pozzuoli, 80078 Napoli, Italy
| | - Roberto De La Torre Roche
- Department Analytical Chemistry, Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, CT USA
| | - Nele Weyens
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Jason C. White
- Department Analytical Chemistry, Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, CT USA
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
- Department of Plant Physiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, Lublin, Poland
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16
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Vanbrugghe C, Bartoli MA, Ouaissi M, Sarlon G, Amabile P, Magnan PÉ, Soler RJ. In situ revascularization with rifampicin-soaked silver polyester graft for aortic infection: Results of a retrospective monocentric series of 18 cases. J Med Vasc 2020; 45:177-183. [PMID: 32571557 DOI: 10.1016/j.jdmv.2020.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/01/2019] [Accepted: 04/16/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To evaluate the short and long-term results of in situ prosthetic graft treatment using rifampicin-soaked silver polyester graft in patients with aortic infection. MATERIAL AND METHOD All the patients surgically managed in our center for an aortic infection were retrospectively analyzed. The primary endpoint was the intra-hospital mortality, secondary outcomes were limb salvage, persistent or recurrent infection, prosthetic graft patency, and long-term survival. RESULTS From January 2004 to December 2015, 18 consecutive patients (12 men and 6 women) were operated on for aortic infection. Six mycotic aneurysms and 12 prosthetic infections, including 8 para-entero-prosthetic fistulas, were treated. In 5 cases, surgery was performed in emergency. During the early postoperative period, we performed one major amputation and two aortic infections were persistent. Intra-hospital mortality was 27.7%. The median follow-up among the 13 surviving patients was 26 months. During follow-up, none of the 13 patients presented reinfection or bypass thrombosis. CONCLUSION This series shows that in situ revascularization with rifampicin-soaked silver polyester graft for aortic infection have results in agreement with the literature in terms of intra-hospital mortality with a low reinfection rate.
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Affiliation(s)
- C Vanbrugghe
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France; General and visceral surgery departement, hôpital Nord, chemin des Bourrely, 13015 Marseille, France
| | - M A Bartoli
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France.
| | - M Ouaissi
- Digestive surgery department, CHRU Tours, avenue de la république, 37170 Chambray-lès-Tours, France
| | - G Sarlon
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France
| | - P Amabile
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France
| | - P-É Magnan
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France
| | - R J Soler
- Vascular surgery department, CHU de Timone, 264, rue Saint-Pierre, 13385 Marseille, France
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Lin C, Wei Z, Yi Z, Tingting T, Huamao D, Lichun F. Analysis of the effects of nanosilver on bacterial community in the intestinal fluid of silkworms using high-throughput sequencing. Bull Entomol Res 2020; 110:309-320. [PMID: 31559940 DOI: 10.1017/s0007485319000634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanosilver is an environment-friendly, harmless alternative of traditional disinfectants which can be potentially applied in the sericulture industry. However, the effects of nanosilver on the intestinal bacterial community of the silkworms (Bombyx mori L.) are unclear. In this study, Illumina MiSeq high-throughput sequencing technology was used to assess the intestinal bacterial community in both male and female silkworms while treated with different concentrations of nanosilver. We found that nanosilver significantly influenced the composition of silkworm intestinal bacterial community on the different taxonomic levels. Most conspicuously, the abundance of Firmicutes was increased by the treatment of 20 mg L-1 nanosilver but decreased by that of 100 mg L-1 nanosilver at the phylum level. The same trend was observed in Bacilli at the class level and in Enterococcus at the genus level. In some extreme cases, application of nanosilver eliminated the bacterium, e.g., Brevibacillus, but increased the population of several other bacteria in the host intestine, such as Blautia, Terrisporobacter, Faecalibacterium, and some bacteria could only be found in nanosilver treatment groups, e.g., Dialister. In addition, although nanosilver generally showed negative effects on the cocooning rate in a dose-dependent manner, we found that 20 mg L-1 nanosilver treatment significantly increased the body weight of silkworms and did not show negative effects on the survival rate. These results indicated that the intestinal bacteria community of silkworm larvae was significantly changed after nanosilver treatment which might consequently influence host growth and development.
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Affiliation(s)
- Chen Lin
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing400715, China
| | - Zhou Wei
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing400715, China
| | - Zhou Yi
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing400715, China
| | - Tan Tingting
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing400715, China
| | | | - Feng Lichun
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing400715, China
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Qiang L, Arabeyyat ZH, Xin Q, Paunov VN, Dale IJF, Lloyd Mills RI, Rotchell JM, Cheng J. Silver Nanoparticles in Zebrafish ( Danio rerio) Embryos: Uptake, Growth and Molecular Responses. Int J Mol Sci 2020; 21:ijms21051876. [PMID: 32182933 PMCID: PMC7084859 DOI: 10.3390/ijms21051876] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 12/27/2022] Open
Abstract
Silver nanoparticles (AgNPs) are widely used in commercial applications as antimicrobial agents, but there have recently been increasing concerns raised about their possible environmental and health impacts. In this study, zebrafish embryos were exposed to two sizes of AgNP, 4 and 10 nm, through a continuous exposure from 4 to 96 h post-fertilisation (hpf), to study their uptake, impact and molecular defense responses. Results showed that zebrafish embryos were significantly impacted by 72 hpf when continuously exposed to 4 nm AgNPs. At concentrations above 0.963 mg/L, significant in vivo uptake and delayed yolk sac absorption was evident; at 1.925 mg/L, significantly reduced body length was recorded compared to control embryos. Additionally, 4 nm AgNP treatment at the same concentration resulted in significantly upregulated hypoxia inducible factor 4 (HIF4) and peroxisomal membrane protein 2 (Pxmp2) mRNA expression in exposed embryos 96 hpf. In contrast, no significant differences in terms of larvae body length, yolk sac absorption or gene expression levels were observed following exposure to 10 nm AgNPs. These results demonstrated that S4 AgNPs are available for uptake, inducing developmental (measured as body length and yolk sac area) and transcriptional (specifically HIF4 and Pxmp2) perturbations in developing embryos. This study suggests the importance of particle size as one possible factor in determining the developmental toxicity of AgNPs in fish embryos.
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Affiliation(s)
- Liyuan Qiang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; (L.Q.); (Q.X.)
| | - Zeinab H. Arabeyyat
- Department of Marine Biology, the University of Jordan, Aqaba branch, Aqaba 77111, Jordan;
| | - Qi Xin
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; (L.Q.); (Q.X.)
| | - Vesselin N. Paunov
- Department of Chemistry and Biochemistry, University of Hull, Cottingham Road, Hull HU6 7RX, UK;
| | - Imogen J. F. Dale
- School of Biological, Biomedical, and Environmental Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK; (I.J.F.D.); (R.I.L.M.)
| | - Richard I. Lloyd Mills
- School of Biological, Biomedical, and Environmental Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK; (I.J.F.D.); (R.I.L.M.)
| | - Jeanette M. Rotchell
- School of Biological, Biomedical, and Environmental Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK; (I.J.F.D.); (R.I.L.M.)
- Correspondence: (J.M.R.); (J.C.); Tel.: +44-1482-465333 (J.M.R.); +852-3469-2124 (J.C.); Fax: +44-1482-465458 (J.M.R.); +852-3693-4766 (J.C.)
| | - Jinping Cheng
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; (L.Q.); (Q.X.)
- Hong Kong Branch of Southern Marine Science and Engineering Guangdong Lab (Guangzhou) & Department of Ocean Science, School of Science, the Hong Kong University of Science and Technology, Kowloon, Hong Kong
- Correspondence: (J.M.R.); (J.C.); Tel.: +44-1482-465333 (J.M.R.); +852-3469-2124 (J.C.); Fax: +44-1482-465458 (J.M.R.); +852-3693-4766 (J.C.)
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Salas P, Odzak N, Echegoyen Y, Kägi R, Sancho MC, Navarro E. The role of size and protein shells in the toxicity to algal photosynthesis induced by ionic silver delivered from silver nanoparticles. Sci Total Environ 2019; 692:233-239. [PMID: 31349164 DOI: 10.1016/j.scitotenv.2019.07.237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 05/13/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
Because of their biocide properties, silver nanoparticles (AgNPs) are present in numerous consumer products. The biocidal properties of AgNPs are due to both the interactions between AgNP and cell membranes and the release of dissolved silver (Ag+). Recent studies emphasized the role of different nanoparticle coatings in complexing and storing Ag+. In this study, the availability of dissolved silver in the presence of algae was assessed for three AgNPs with different silver contents (59%, 34% and 7% of total Ag), silver core sizes and casein shell thicknesses. The impact of ionic silver on the photosynthetic yield of Chlamydomonas reinhardtii was used as a proxy to estimate the amount of ionic silver toxically active during in vivo assays. The results showed that cysteine, a strong silver ligand, mitigated the toxicity of AgNPs in all cases, demonstrating the key role of Ag+ in this toxicity. The results showed that the AgNPs presenting an intermediate level of silver (34%) were 10 times more effective in terms of total mass (EC50 ten times smaller) than those presenting more (59%) or less (7%) silver. The higher toxicity was due to the higher release of Ag+ under biotic conditions due to the high surface/mass ratio of the nanoparticle silver core. Protein shells played a minor role in altering the availability of Ag+, probably acting as intermediate reservoirs. This study highlighted the utility of a very sensitive biological endpoint (i.e., algal photosynthesis) for the optimization of ionic silver delivery by nanomaterials.
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Affiliation(s)
- Patricia Salas
- Pyrenean Institute of Ecology-CSIC, Av. Montañana 1005, Zaragoza 50059, Spain; Sonea Ingenieria y Medio Ambiente S.L., P.Tec. WALQA, Ctra. Zaragoza N330 Km. 566, Huesca, Spain.
| | - Niksa Odzak
- Eawag, Überlandstrasse 133, Dübendorf 8600, Switzerland.
| | - Yolanda Echegoyen
- Dept. of Experimental and Social Sciences Teaching, University of Valencia, Avd. Tarongers 4, Valencia 46022, Spain.
| | - Ralf Kägi
- Eawag, Überlandstrasse 133, Dübendorf 8600, Switzerland.
| | - M Carmen Sancho
- Pyrenean Institute of Ecology-CSIC, Av. Montañana 1005, Zaragoza 50059, Spain.
| | - Enrique Navarro
- Pyrenean Institute of Ecology-CSIC, Av. Montañana 1005, Zaragoza 50059, Spain.
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20
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Docherty G, Martens R, Kirker A. Colloidal silver toxicity with absence of choroidal signal on optical coherence tomography. Can J Ophthalmol 2019; 54:e203-e205. [PMID: 31358171 DOI: 10.1016/j.jcjo.2018.10.021] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 11/18/2022]
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Boukadida K, Cachot J, Morin B, Clerandeau C, Banni M. Moderate temperature elevation increase susceptibility of early-life stage of the Mediterranean mussel, Mytilus galloprovincialis to metal-induced genotoxicity. Sci Total Environ 2019; 663:351-360. [PMID: 30716625 DOI: 10.1016/j.scitotenv.2019.01.215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 10/18/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
The present study aims to evaluate the effects of copper and silver alone or along with a moderate temperature increase on embryonic development, DNA integrity and target gene expression levels in early life stages of Mytilus galloprovincialis. For this purpose, upon fertilized embryos were exposed to a sub-lethal concentration of Cu (9.54 μg/L), Ag (2.55 μg/L) and to the mixture of the two metals (Cu (6.67 μg/L) + Ag (1.47 μg/L)) along with a temperature gradient (18, 20 and 22 °C). In all experiments, larvae were exposed to stressors for 48 h except for those designed to DNA damage analysis exposed only for 24 h (before shell formation).Our results showed a significant increase in the percentage of malformed D-larvae (p < 0.05) with increasing temperature and exposure to silver and copper alone or in a mixture. Moreover, metal toxicity increased significantly (p < 0.05) with the temperature rise. Genotoxicity was evaluated using classic and modified with Formamidopyrimidine DNA glycosylase (Fpg) Comet assay. Results suggest that co-exposure to metals and temperature significantly increased DNA damage on mussel larvae with a more accentuated oxidative damage. A significant transcription modulation was observed for genes involved in DNA repair and DNA replication (p53, DNA ligase II and topoisomerase II) when larvae are exposed to a single stressor. However, in the case of multiple stresses, caspase involved in the cell apoptosis pathway was overexpressed. Our study suggests that mussel larvae exposed to a moderate increase in temperature may have a compromised ability to defend against genotoxicity. This is particularly relevant in the context of global warming and thermal pollution.
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Affiliation(s)
- Khouloud Boukadida
- Laboratory of Oceanic and Continental Environments and Paleoenvironments, University of Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France; Laboratory of Biochemistry and Environmental Toxicology, ISA, Chott-Mariem, 4042 Sousse, Tunisia
| | - Jérôme Cachot
- Laboratory of Oceanic and Continental Environments and Paleoenvironments, University of Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France
| | - Bénédicte Morin
- Laboratory of Oceanic and Continental Environments and Paleoenvironments, University of Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France
| | - Christelle Clerandeau
- Laboratory of Oceanic and Continental Environments and Paleoenvironments, University of Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France
| | - Mohamed Banni
- Laboratory of Biochemistry and Environmental Toxicology, ISA, Chott-Mariem, 4042 Sousse, Tunisia.
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22
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Scherer MD, Sposito JCV, Falco WF, Grisolia AB, Andrade LHC, Lima SM, Machado G, Nascimento VA, Gonçalves DA, Wender H, Oliveira SL, Caires ARL. Cytotoxic and genotoxic effects of silver nanoparticles on meristematic cells of Allium cepa roots: A close analysis of particle size dependence. Sci Total Environ 2019; 660:459-467. [PMID: 30640113 DOI: 10.1016/j.scitotenv.2018.12.444] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [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: 09/06/2018] [Revised: 12/14/2018] [Accepted: 12/28/2018] [Indexed: 05/25/2023]
Abstract
The use of silver nanoparticles (AgNPs) in commercial products has increased significantly in recent years. However, findings on the toxic effects of the AgNPs are still limited. This paper reports an investigation on the cytotoxic and genotoxic potential of the AgNPs on root cells of Allium cepa. Germination (GI), root elongation (REI), mitotic (MI), nuclear abnormality (NAI), and micronucleus index (MNI) were determined for seeds exposed to various AgNPs diameters (10, 20, 51, and 73 nm) as well as to the silver bulk (AgBulk) (micrometer-size particles) at the concentration of 100 mg·L-1. Transmission electron microscopy (TEM) provided the particle size distribution, while dynamic light scattering (DLS) was used to get the hydrodynamic size, polydispersity index, and zeta potential of the AgNPs. Laser-induced breakdown spectroscopy (LIBS) and inductively coupled plasma/optical emission spectrometry (ICP OES) were applied for quantifying the AgNPs content uptake by roots. Silver dissolution was determined by dialysis experiment. Results showed that the AgNPs penetrated the roots, affecting MI, GI, NAI, and MNI in meristematic cells. Changes in these indicators were AgNPs diameter-dependent so that cytotoxic and genotoxic effects in Allium cepa increased with the reduction of the particle diameter. The results also revealed that the AgNPs were the main responsible for the cytotoxicity and genotoxicity since negligible silver dissolution was observed.
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Affiliation(s)
- Marisa D Scherer
- Grupo de Óptica e Fotônica, Universidade Federal de Mato Grosso do Sul, CP 549, 790070-900 Campo Grande, MS, Brazil
| | - Juliana C V Sposito
- Grupo de Óptica Aplicada, Universidade Federal da Grande Dourados, CP 533, 79804-970 Dourados, MS, Brazil
| | - William F Falco
- Grupo de Óptica Aplicada, Universidade Federal da Grande Dourados, CP 533, 79804-970 Dourados, MS, Brazil
| | - Alexeia B Grisolia
- Grupo de Óptica Aplicada, Universidade Federal da Grande Dourados, CP 533, 79804-970 Dourados, MS, Brazil
| | - Luis H C Andrade
- Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual do Mato Grosso do Sul, CP 523, 79804-970 Dourados, MS, Brazil
| | - Sandro M Lima
- Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual do Mato Grosso do Sul, CP 523, 79804-970 Dourados, MS, Brazil.
| | - Giovanna Machado
- Centro de Tecnologias Estratégicas do Nordeste - CETENE, Recife, PE, Brazil..
| | - Valter A Nascimento
- Grupo de Espectroscopia e Bioinformática Aplicados a Biodiversidade e a Saúde, Universidade Federal de Mato Grosso do Sul, CP 549, 79070-900 Campo Grande, MS, Brazil
| | - Daniel A Gonçalves
- Grupo de Espectroscopia e Bioinformática Aplicados a Biodiversidade e a Saúde, Universidade Federal de Mato Grosso do Sul, CP 549, 79070-900 Campo Grande, MS, Brazil
| | - Heberton Wender
- Grupo de Óptica e Fotônica, Universidade Federal de Mato Grosso do Sul, CP 549, 790070-900 Campo Grande, MS, Brazil
| | - Samuel L Oliveira
- Grupo de Óptica e Fotônica, Universidade Federal de Mato Grosso do Sul, CP 549, 790070-900 Campo Grande, MS, Brazil.
| | - Anderson R L Caires
- Grupo de Óptica e Fotônica, Universidade Federal de Mato Grosso do Sul, CP 549, 790070-900 Campo Grande, MS, Brazil.
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23
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Elbehiry A, Al‐Dubaib M, Marzouk E, Moussa I. Antibacterial effects and resistance induction of silver and gold nanoparticles against Staphylococcus aureus-induced mastitis and the potential toxicity in rats. Microbiologyopen 2019; 8:e00698. [PMID: 30079629 PMCID: PMC6460268 DOI: 10.1002/mbo3.698] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 11/01/2017] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 12/11/2022] Open
Abstract
Staphylococcus aureus (S. aureus) is one of the prevalent mastitis-inducing pathogens worldwide. The resistance of S. aureus to antibiotics is a common issue for dairy farms. Recently, nanoparticles (NPs) have been used for treating antibiotic-resistant bacteria. We therefore aimed to investigate the antimicrobial effect of silver and gold NPs (AgNPs and AuNPs, respectively) and the resistance developed by S. aureus as well as the toxic effects of both NPs in rats. We used 198 S. aureus strains to determine the antibacterial effects of AgNPs and AuNPs. The microdilution method was used to establish the minimum inhibitory concentrations (MICs) of both NPs. To induce resistance, 20 S. aureus strains were passaged 10 times in broth medium with sublethal doses of NPs and an additional 10 times without NPs to examine the stability of resistance. Histopathology was performed after oral administration to the rats with the study doses of 0.25, 0.5, 1, and 2 mg/kg of NPs for 30 days. The MICs of 10-nm AgNPs, 20-nm AgNPs, 10-nm AuNPs, and 20-nm AuNPs against S. aureus were 14.70 ± 1.19 μg/ml, 9.15 ± 0.13 μg/ml, 24.06 ± 2.36 μg/ml, and 18.52 ± 1.26 μg/ml, respectively. Most strains developed strong resistance when treated with 20-nm or 10-nm AgNPs, whereas only two strains were resistant to 10-nm AuNPs and three strains to 20-nm AuNPs. No cross-resistance between NPs and various antibiotics was identified in any of the adapted S. aureus strains. Organ histopathology revealed that 0.25, 0.5, and 1 mg/kg doses of AgNPs and AuNPs were not toxic to rat tissue. In contrast, a higher dose (2 mg/kg) of NPs impaired all organs tested. This study demonstrates the antibacterial effects of NPs. S. aureus strains develop resistance less frequently against AuNPs than AgNPs, and neither AuNPs nor AgNPs was toxic to rats at low doses.
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Affiliation(s)
- Ayman Elbehiry
- Department of BacteriologyMycology and ImmunologyFaculty of Veterinary MedicineUniversity of Sadat CitySadat CityEgypt
- Department of Public HealthCollege of Public Health and Health InformaticsQassim UniversityBuraidahSaudi Arabia
| | - Musaad Al‐Dubaib
- Department of Veterinary MedicineCollege of Agriculture and Veterinary MedicineQassim UniversityBuraidahSaudi Arabia
| | - Eman Marzouk
- Department of Medical laboratoriesCollege of Applied Medical ScienceQassim UniversityBuraidahSaudi Arabia
| | - Ihab Moussa
- Department of Botany and MicrobiologyCollege of ScienceKing Saud UniversityRiyadhSaudi Arabia
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24
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Fathi N, Hoseinipanah SM, Alizadeh Z, Assari MJ, Moghimbeigi A, Mortazavi M, Hosseini MH, Bahmanzadeh M. The effect of silver nanoparticles on the reproductive system of adult male rats: A morphological, histological and DNA integrity study. ADV CLIN EXP MED 2019; 28:299-305. [PMID: 30170485 DOI: 10.17219/acem/81607] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Silver nanoparticles (AgNPs) are more often used in various products, and consequently the potential deleterious effects associated with exposure to them are of concern. Several lines of evidence have demonstrated that the toxicity of AgNPs affects different organs and leads to some side effects, including weight loss, inflammation and cell death. OBJECTIVES The aim of this study was to evaluate the effect of different concentrations of AgNPs on sperm parameters and testicular histology. MATERIAL AND METHODS In the present study, 28 male adult Wistar rats were categorized into a control group and 3 experimental groups (AgNP-1, AgNP-2 and AgNP-3), intraperitoneally (i.p.) receiving 30, 125 and 300 mg/kg of AgNPs, respectively. Twenty-eight days after injection the epididymes and the testes of each rat were dissected in order to evaluate sperm parameters, sperm chromatin integrity and histomorphometric changes in the testicular tissue. RESULTS The results showed a significant decrease in sperm count (p < 0.0001), vitality (p < 0.05) and morphology changes (p < 0.001) in the group receiving 300 mg/kg of AgNPs compared to the control group. A significant decrease was also observed in the number of spermatogonia, Sertoli and Leydig cells in the AgNP-2 and AgNP-3 groups (p < 0.05). The evaluation of sperm chromatin did not show any significant differences among the experimental groups (p > 0.05). CONCLUSIONS The data showed some dose-dependent adverse effects of AgNPs on sperm and seminiferous tubules. More experimental investigations are necessary to draw better conclusions regarding the safety of nanoparticles (NPs) on the male reproduction system.
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Affiliation(s)
- Nasibeh Fathi
- Department of Anatomical Sciences, School of Medicine, Hamadan University of Medical Sciences, Iran
| | | | - Zohreh Alizadeh
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Iran
| | - Mohammad Javad Assari
- Center of Excellence for Occupational Health, Occupational Health and Safety Research Center, School of Public Health, Hamadan University of Medical Sciences, Iran
| | - Abbas Moghimbeigi
- Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Iran
| | - Motahare Mortazavi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Iran
| | - Morteza Haji Hosseini
- Birjand Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Iran
| | - Maryam Bahmanzadeh
- Department of Anatomical Sciences, School of Medicine, Hamadan University of Medical Sciences, Iran
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Iran
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25
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Greish K, Alqahtani AA, Alotaibi AF, Abdulla AM, Bukelly AT, Alsobyani FM, Alharbi GH, Alkiyumi IS, Aldawish MM, Alshahrani TF, Pittalà V, Taurin S, Kamal A. The Effect of Silver Nanoparticles on Learning, Memory and Social Interaction in BALB/C Mice. Int J Environ Res Public Health 2019; 16:ijerph16010148. [PMID: 30625980 PMCID: PMC6339045 DOI: 10.3390/ijerph16010148] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 11/20/2018] [Revised: 12/23/2018] [Accepted: 01/04/2019] [Indexed: 11/16/2022]
Abstract
Silver Nanoparticles (AgNPs), an epitome of nanotechnology, appear in everyday products such as water filters, printer ink, toothpaste, food packaging and cosmetics mostly due to their bactericidal properties. Given this high level of public exposure, the safety of AgNPs has never been fully established. The unsafe use of AgNPs could pose a real threat, not only to public health but also to economic growth in many industries. In this paper, we tested the effect of AgNPs on memory, learning, social behaviour and motor function of BALB/C mice. Outcomes of the present study suggested an impairment of these functions in AgNPs treated groups. Overall, obtained data support the evidence that the systemic exposure to AgNPs may result in alteration of the cerebral cognition and warrants further consideration on the impact of the AgNPs on human health with respect to their potential neurotoxicity.
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Affiliation(s)
- Khaled Greish
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
- Nanomedicine Research Unite, Princess Al-Jawhara Centre for Molecular Medicine and Inherited Disorder, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
| | | | | | | | - Aysha Tariq Bukelly
- Department of Physiology, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
| | | | - Ghazi Hamad Alharbi
- Department of Physiology, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
| | - Israa Saeed Alkiyumi
- Department of Physiology, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
| | | | | | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy.
| | - Sebastien Taurin
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
- Nanomedicine Research Unite, Princess Al-Jawhara Centre for Molecular Medicine and Inherited Disorder, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
| | - Amer Kamal
- Department of Physiology, Arabian Gulf University, Manama 329, Kingdom of Bahrain.
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26
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Newlands SJ, Betts TD, Stack RR. Colloidal silver optic neuropathy. N Z Med J 2018; 131:63-65. [PMID: 30286067] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Samuel J Newlands
- Canterbury Eye Service, Canterbury District Health Board, Christchurch
| | - Tom D Betts
- Canterbury Eye Service, Canterbury District Health Board, Christchurch
| | - Rebecca R Stack
- Canterbury Eye Service, Canterbury District Health Board, Christchurch
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27
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Barker LK, Giska JR, Radniecki TS, Semprini L. Effects of short- and long-term exposure of silver nanoparticles and silver ions to Nitrosomonas europaea biofilms and planktonic cells. Chemosphere 2018; 206:606-614. [PMID: 29778938 DOI: 10.1016/j.chemosphere.2018.05.017] [Citation(s) in RCA: 22] [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] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 04/27/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
The increasing use of silver nanoparticles (AgNPs) in consumer products, and their resulting influx into wastewater, may pose a threat to biological nutrient removal in wastewater treatment plants. Planktonic ammonia-oxidizing bacteria (AOB), which convert ammonia to nitrite in the first step of nitrification, are highly sensitive to AgNPs and their released silver ions (Ag+), but the sensitivity of AOB biofilms to AgNPs and Ag+ is less clear. This study demonstrated that biofilms of Nitrosomonas europaea, a model AOB, were more resistant to both short-term and long-term exposure to AgNP and Ag+ than planktonic cells. The increased resistance of N. europaea biofilms was attributed primarily to the increased biomass and slower growth rates present in the biofilm. Similar inhibition mechanisms were observed for AgNPs and Ag+ in both planktonic cells and biofilms with enzymatic inhibition observed at lower concentrations and cell lysis observed at higher concentrations. Long-term continuous exposure to AgNPs lowered the inhibitory concentration by 1-2 orders of magnitude below that required by short-term exposures. Although the total AgNP load was similar between the short and long-term exposure scenarios, the long-term exposure resulted in an order of magnitude more silver being associated in the biofilms and is the primary reason for the increased sensitivity observed. This suggests that short-term batch toxicity assays may greatly underestimate the sensitivity of biofilm treatment systems to long-term exposures of low concentrations of AgNPs and Ag+.
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Affiliation(s)
- L K Barker
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - J R Giska
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - T S Radniecki
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA.
| | - L Semprini
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
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28
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Brouillard C, Bursztejn AC, Latarche C, Cuny JF, Truchetet F, Goullé JP, Schmutz JL. Silver absorption and toxicity evaluation of silver wound dressings in 40 patients with chronic wounds. J Eur Acad Dermatol Venereol 2018; 32:2295-2299. [PMID: 29730878 DOI: 10.1111/jdv.15055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/16/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND Silver-containing dressings are considered to be safe even though there have been some reports of complications, including argyria and various organ system dysfunctions. Despite the widespread use of silver dressings, little research has been done regarding the absorption and toxicity of silver. OBJECTIVE We aimed to study the systemic absorption of silver in patients with chronic inflammatory wounds and to determine associated factors of systemic silver absorption and evaluated its association with silver toxicity. PATIENTS AND METHOD Prospective, longitudinal, observational, multicentre, open-label pilot study. Patients from the Dermatology Departments of Lorraine (France) with the following inclusion criteria: (i) a chronic wound of more than 6 weeks and (ii) an ulcer needing silver-containing dressing were included. Before and after 28 days of treatment, clinical characteristics of the wound were recorded; hemogram, hepatic and renal functions, albumin sera and serum silver level were measured. RESULTS Half of the cases displayed raised levels of silver after 1 month of treatment. Predictive factors for systemic silver absorption were wound area, anaemia and malnutrition with anaemia and malnutrition confirmed on multivariate analysis. Wound vascularization may also play a role, as a higher absorption was observed in cases of wound granulation without arterial components. No toxicity was detected. This work has also emphasized the slow elimination of silver from the body. CONCLUSION Both long-term application and iterative treatments with silver dressings should be discouraged, especially in the elderly, who often suffer from malnutrition and anaemia to avoid potential cumulative toxicity.
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Affiliation(s)
- C Brouillard
- Department of Dermatology, Nancy University Hospital, Nancy, France
| | - A-C Bursztejn
- Department of Dermatology, Nancy University Hospital, Nancy, France
| | - C Latarche
- Department of Epidemiology, Nancy University Hospital, Nancy, France
| | - J-F Cuny
- Department of Dermatology, Nancy University Hospital, Nancy, France
| | - F Truchetet
- Department of Dermatology, Metz-Thionville Regional Hospital, Thionville, France
| | - J-P Goullé
- Department of Toxicology, Le Havre Hospital, Le Havre, France
| | - J-L Schmutz
- Department of Dermatology, Nancy University Hospital, Nancy, France
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29
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Cao C, Huang J, Yan C, Liu J, Hu Q, Guan W. Shifts of system performance and microbial community structure in a constructed wetland after exposing silver nanoparticles. Chemosphere 2018; 199:661-669. [PMID: 29471236 DOI: 10.1016/j.chemosphere.2018.02.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 01/07/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
The increasing utilization of silver nanoparticles (Ag NPs) in industry and commerce inevitably raises its release into wastewater. In this work, effects of Ag NPs on system performance and microbial community along the way of a vertical flow constructed wetland (VFCW) were investigated, along with the removal and fate of Ag NPs within the system. Results showed that the performance of control wetland kept stable during the experimental period, and the top substrate layer (soil layer) of wetland could remove most of pollutants in the influent. The study also suggested that addition of Ag NPs did not significantly affect organic matters removal. However, adverse effects were observed on the nitrogen and phosphorus removal. Removal efficiencies of TN, NH4+-N and TP approximately obviously reduced by approximately 10.10%, 8.42% and 28.35% respectively in contrast to before dosing after exposing 100 μg/L Ag NPs for 94 d, while the no dosing wetland with the stable performance. It was found that Ag NPs accumulated in the upper soil layer more than in the lower soil layer, and Ag NPs could enter into the plant tissues. After continuous input of Ag NPs, removal efficiency of Ag NPs was measured as 95.72%, which showed that the CW could effectively remove Ag NPs from the wastewater. The high-throughput sequencing results revealed that Ag NPs caused the shifts in microbial community structures and changed the relative abundances of key functional bacteria, which finally resulted in a lower efficiency of biological nitrogen and phosphorus removal.
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Affiliation(s)
- Chong Cao
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Juan Huang
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China.
| | - Chunni Yan
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Jialiang Liu
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Qian Hu
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Wenzhu Guan
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
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30
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Nandi SK, Shivaram A, Bose S, Bandyopadhyay A. Silver nanoparticle deposited implants to treat osteomyelitis. J Biomed Mater Res B Appl Biomater 2018; 106:1073-1083. [PMID: 28508595 PMCID: PMC5685947 DOI: 10.1002/jbm.b.33910] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 12/05/2016] [Revised: 04/18/2017] [Accepted: 04/22/2017] [Indexed: 01/11/2023]
Abstract
In this study, electrolytically deposited strongly adherent silver nanoparticles on stainless-steel (SS) implants were used for in situ osteomyelitis treatment. Samples were heat treated to enhance adhesion of silver on 316 L SS. Ex vivo studies were performed to measure silver-release profiles from the 316 L SS screws inserted in equine cadaver bones. No change in the release profiles of silver ions were observed in vitro between the implanted screws and the control. In vivo studies were performed using osteomyelitic rabbit model with 3 mm diameter silver-deposited 316 L SS pins at two different doses of silver: high and low. Infection control ability of the pins for treating osteomyelitis in a rabbit model was measured using bacteriologic, radiographic, histological, and scanning electron microscopic studies. Silver-coated pins, especially high dose, offered a promising result to treat infection in animal osteomyelitis model without any toxicity to major organs. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1073-1083, 2018.
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Affiliation(s)
- Samit Kumar Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata, 700037, India
| | - Anish Shivaram
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Amit Bandyopadhyay
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
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31
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Vadalasetty KP, Lauridsen C, Engberg RM, Vadalasetty R, Kutwin M, Chwalibog A, Sawosz E. Influence of silver nanoparticles on growth and health of broiler chickens after infection with Campylobacter jejuni. BMC Vet Res 2018; 14:1. [PMID: 29291752 PMCID: PMC5748950 DOI: 10.1186/s12917-017-1323-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 12/18/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Silver nanoparticles (AgNP) have gained much attention in recent years due to their biomedical applications, especially as antimicrobial agents. AgNP may be used in poultry production as an alternative to the use of antibiotic growth promoter. However, little is known about the impact of oral administration of AgNP on the gut microbiota and the immune system. The aim of the present study was to investigate the effects of AgNP on growth, hematological and immunological profile as well as intestinal microbial composition in broilers challenged with Campylobacter jejuni (C. jejuni). RESULTS AgNP did not affect the intestinal microbial profile of birds. The body weight gain and the relative weights of bursa and spleen were reduced when supplemented with AgNP. There was no difference with respect to packed cell volume. However, the plasma concentrations of IgG and IgM were lower in birds receiving AgNP compared to the non-supplemented control group. The expression of TNF-α and NF-kB at mRNA level was significantly higher in birds receiving AgNP. CONCLUSIONS The application of AgNP via the drinking water in the concentration of 50 ppm reduced broiler growth, impaired immune functions and had no antibacterial effect on different intestinal bacterial groups, which may limit the applicability of AgNP against C. jejuni in broiler chickens.
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Affiliation(s)
| | | | | | - Radhika Vadalasetty
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Marta Kutwin
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Ewa Sawosz
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
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Raj A, Shah P, Agrawal N. Dose-dependent effect of silver nanoparticles (AgNPs) on fertility and survival of Drosophila: An in-vivo study. PLoS One 2017; 12:e0178051. [PMID: 28542630 PMCID: PMC5443555 DOI: 10.1371/journal.pone.0178051] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 04/05/2016] [Accepted: 05/06/2017] [Indexed: 11/18/2022] Open
Abstract
Silver nanoparticles (AgNPs) containing consumer products have been proliferating in the market due to its unique antimicrobial property, however, lack of in-depth knowledge about their potential effect on human health in a longer run is of great concern. Therefore, we investigated dose-dependent in vivo effect of AgNPs using Drosophila as a model system. Drosophila, a genetically tractable organism with distinct developmental stages, short life cycle and significant homology with human serves as an ideal organism to study nanomaterial-mediated toxicity. Our studies suggest that ingestion of AgNPs in Drosophila during adult stage for short and long duration significantly affects egg laying capability along with impaired growth of ovary. Additionally, dietary intake of AgNPs from larval stage has more deleterious effects that result in reduced survival, longevity, ovary size and egg laying capability at a further lower dosage. Interestingly, the trans-generational effect of AgNPs was also observed without feeding progeny with AgNPs, thereby suggesting its impact from previous generation. Our results strongly imply that higher doses of AgNPs and its administration early during development is detrimental to the reproductive health and survival of Drosophila that follows in generations to come without feeding them to AgNPs.
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Affiliation(s)
- Akanksha Raj
- Department of Zoology, University of Delhi, Delhi, India
| | - Prasanna Shah
- Acropolis Institute of Technology and Research, Indore, India
| | - Namita Agrawal
- Department of Zoology, University of Delhi, Delhi, India
- * E-mail:
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Gunawan C, Marquis CP, Amal R, Sotiriou GA, Rice SA, Harry EJ. Widespread and Indiscriminate Nanosilver Use: Genuine Potential for Microbial Resistance. ACS Nano 2017; 11:3438-3445. [PMID: 28339182 DOI: 10.1021/acsnano.7b01166] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this era of increasing antibiotic resistance, the use of alternative antimicrobials such as silver has become more widespread. Superior antimicrobial activity has been provided through fabrication of silver nanoparticles or nanosilver (NAg), which imparts cytotoxic actions distinct from those of bulk silver. In the wake of the recent discoveries of bacterial resistance to NAg and its rising incorporation in medical and consumer goods such as wound dressings and dietary supplements, we argue that there is an urgent need to monitor the prevalence and spread of NAg microbial resistance. In this Perspective, we describe how the use of NAg in commercially available products facilitates prolonged microorganism exposure to bioavailable silver, which underpins the development of resistance. Furthermore, we advocate for a judicial approach toward NAg use in order to preserve its efficacy and to avoid environmental disruption.
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Affiliation(s)
- Cindy Gunawan
- The iThree Institute, University of Technology Sydney , Sydney, NSW 2007, Australia
| | | | | | - Georgios A Sotiriou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet , 17177 Stockholm, Sweden
| | | | - Elizabeth J Harry
- The iThree Institute, University of Technology Sydney , Sydney, NSW 2007, Australia
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Ahmed MM, Hussein MMA. Neurotoxic effects of silver nanoparticles and the protective role of rutin. Biomed Pharmacother 2017; 90:731-739. [PMID: 28419969 DOI: 10.1016/j.biopha.2017.04.026] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 03/31/2017] [Accepted: 04/10/2017] [Indexed: 11/30/2022] Open
Abstract
The toxicological studies on silver nanoparticles (Ag-NPs) have become a hot topic over the past few decades due to their unique properties on the nanoscale and widespread in many commercial products that launched into the market recently. This study was undertaken to shed light on Ag-NPs toxicity on neurotransmitters with special emphasis on the impact of concurrent administration of rutin with Ag-NPs in the experimental rats. The oral administration of Ag-NPs in rats induced brain oxidative stress, significant alterations in neurotransmitters and amino acids. Furthermore, transcriptional levels of glutamatergic N-methyl-d-aspartate (NMDA) receptors, monoamino oxidases (MAO-A, MAO-B) and metallothionein-III (MT-III) showed a significant elevation in Ag-NPs intoxicated rats. Moreover, histological examinations revealed astrogliosis and demyelination of neurons concomitant with neuronal degeneration and vacuolation. Strikingly, oral administration of rutin counterbalanced the toxic effects triggered by Ag-NPs. Taken together, our findings suggested that oral administration of Ag-NPs induced neurotoxicity in rats and rutin mitigates these effects.
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Affiliation(s)
- Mona M Ahmed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, 44519, Egypt
| | - Mohamed M A Hussein
- Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, 44519, Egypt.
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Abstract
Purpose The aim of this report is to present a case of a patient, metal foundry worker, who had been exposed to industrial silver salts for over 20 years. It is well established that chronic exposure to silver compounds can cause accumulation of silver deposits in various tissues. This condition is referred to as argyrosis or argyria, whereas changes related to eye tissues are defined as ocular argyrosis. Methods A complete eye examination, corneal confocal microscopy, kinetic and static visual field test, posterior segment optical coherent tomography, pattern visual evoked potentials (PVEP), flash visual evoked potentials, multifocal electroretinogram, pattern electroretinogram (PERG), full-field electroretinography (FERG) and electrooculogram were all performed. Results Eye examination revealed decreased visual acuity, corneal deposits and drusenoid changes within the macula. Although electrophysiology tests did not show changes in the function of retinal pigment epithelium, they revealed abnormal function of photoreceptors in the central and peripheral retina. PERG abnormalities and delayed latency of P100 wave in PVEP confirmed impaired function of the inner layers of the retina in the macular region. Conclusions Corneal confocal microscopy and electrophysiological tests may help confirm the diagnosis of ocular argyrosis.
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Affiliation(s)
- Monika Sarnat-Kucharczyk
- Department of Ophthalmology, School of Medicine in Katowice, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland.
| | - Dorota Pojda-Wilczek
- Department of Ophthalmology, School of Medicine in Katowice, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland
| | - Ewa Mrukwa-Kominek
- Department of Ophthalmology, School of Medicine in Katowice, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland
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Fröhlich EE, Fröhlich E. Cytotoxicity of Nanoparticles Contained in Food on Intestinal Cells and the Gut Microbiota. Int J Mol Sci 2016; 17:509. [PMID: 27058534 PMCID: PMC4848965 DOI: 10.3390/ijms17040509] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [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: 02/23/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 01/15/2023] Open
Abstract
Toxicity of nanoparticles (NPs) upon oral exposure has been studied in animals using physiological changes, behavior, histology, and blood analysis for evaluation. The effects recorded include the combination of the action on cells of the exposed animal and the reaction of the microorganisms that populate the external and internal surfaces of the body. The importance of these microorganisms, collectively termed as microbiota, for the health of the host has been widely recognized. They may also influence toxicity of NPs but these effects are difficult to differentiate from toxicity on cells of the gastrointestinal tract. To estimate the likelihood of preferential damage of the microbiota by NPs the relative sensitivity of enterocytes and bacteria was compared. For this comparison NPs with antimicrobial action present in consumer products were chosen. The comparison of cytotoxicity with Escherichia coli as representative for intestinal bacteria and on gastrointestinal cells revealed that silver NPs damaged bacteria at lower concentrations than enterocytes, while the opposite was true for zinc oxide NPs. These results indicate that silver NPs may cause adverse effects by selectively affecting the gut microbiota. Fecal transplantation from NP-exposed animals to unexposed ones offers the possibility to verify this hypothesis.
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Affiliation(s)
- Esther E Fröhlich
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, Universitätsplatz 4, Graz A-8010, Austria.
| | - Eleonore Fröhlich
- Center for Medical Research, Medical University of Graz, Stiftingtalstr. 24, Graz A-8010, Austria.
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de Luna LAV, de Moraes ACM, Consonni SR, Pereira CD, Cadore S, Giorgio S, Alves OL. Comparative in vitro toxicity of a graphene oxide-silver nanocomposite and the pristine counterparts toward macrophages. J Nanobiotechnology 2016; 14:12. [PMID: 26912341 PMCID: PMC4765018 DOI: 10.1186/s12951-016-0165-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 02/12/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Graphene oxide (GO) is a highly oxidized graphene form with oxygen functional groups on its surface. GO is an excellent platform to support and stabilize silver nanoparticles (AgNP), which gives rise to the graphene oxide-silver nanoparticle (GOAg) nanocomposite. Understanding how this nanocomposite interacts with cells is a toxicological challenge of great importance for future biomedical applications, and macrophage cells can provide information concerning the biocompatibility of these nanomaterials. The cytotoxicity of the GOAg nanocomposite, pristine GO, and pristine AgNP was compared toward two representative murine macrophages: a tumoral lineage (J774) and peritoneal macrophages collected from Balb/c mouse. The production of reactive oxygen species (ROS) by J774 macrophages was also monitored. We investigated the internalization of nanomaterials by transmission electron microscopy (TEM). The quantification of internalized silver was carried out by inductively coupled plasma mass spectrometry (ICP-MS). Nanomaterial stability in the cell media was investigated overtime by visual observation, inductively coupled plasma optical emission spectrometry (ICP OES), and dynamic light scattering (DLS). RESULTS The GOAg nanocomposite was more toxic than pristine GO and pristine AgNP for both macrophages, and it significantly induced more ROS production compared to pristine AgNP. TEM analysis showed that GOAg was internalized by tumoral J774 macrophages. However, macrophages internalized approximately 60 % less GOAg than did pristine AgNP. The images also showed the degradation of nanocomposite inside cells. CONCLUSIONS Although the GOAg nanocomposite was less internalized by the macrophage cells, it was more toxic than the pristine counterparts and induced remarkable oxidative stress. Our findings strongly reveal a synergistic toxicity effect of the GOAg nanocomposite. The toxicity and fate of nanocomposites in cells are some of the major concerns in the development of novel biocompatible materials and must be carefully evaluated.
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Affiliation(s)
- Luis Augusto Visani de Luna
- Laboratory of Solid State Chemistry (LQES), Institute of Chemistry, University of Campinas, Campinas, Brazil.
- Laboratory of Leishmaniasis (Lableish), Institute of Biology, University of Campinas, Campinas, Brazil.
| | | | - Sílvio Roberto Consonni
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.
- Laboratory of Cytochemistry and Immunocytochemistry (LCI), Institute of Biology, University of Campinas, Campinas, Brazil.
| | - Catarinie Diniz Pereira
- Atomic Spectrometry Group (GEAtom), Institute of Chemistry, University of Campinas, Campinas, Brazil.
| | - Solange Cadore
- Atomic Spectrometry Group (GEAtom), Institute of Chemistry, University of Campinas, Campinas, Brazil.
| | - Selma Giorgio
- Laboratory of Leishmaniasis (Lableish), Institute of Biology, University of Campinas, Campinas, Brazil.
| | - Oswaldo Luiz Alves
- Laboratory of Solid State Chemistry (LQES), Institute of Chemistry, University of Campinas, Campinas, Brazil.
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He W, Liu X, Kienzle A, Müller WEG, Feng Q. In Vitro Uptake of Silver Nanoparticles and Their Toxicity in Human Mesenchymal Stem Cells Derived from Bone Marrow. J Nanosci Nanotechnol 2016; 16:219-228. [PMID: 27398448 DOI: 10.1166/jnn.2016.10728] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
During the last decade, the usage of silver nanoparticles in biomedical fields has increased rapidly, mainly due to their excellent antibacterial effects. They are used in many medical products such as wound dressings, catheters, bone cement and artificial cardiac valves. In tissue engineering, silver nanoparticles are often loaded as a filler for fabrication of nanocomposite scaffolds which subsequently are seeded with human mesenchymal stem cells. Thus, possible adverse effects of silver nanoparticles on human stem cells should be investigated carefully to ensure a safe usage. In this study, silver nanoparticles with a mean diameter of ~30 nm were prepared and their toxicity in human mesenchymal stem cells was investigated. Transmission electron microscopic images reveal the uptake and localization of the silver nanoparticles in the cytoplasm. Upon internalization of Ag NPs inside the cells, an increase in the release of lactate dehydrogenase and the production of reactive oxygen species was quantified. Furthermore, they caused a reduction in both cell viability and mitochondrial membrane potential in a dose-dependent manner. Annexin V-FITC/PI staining implied that silver nanoparticles did not only induce apoptosis but also cause necrosis. Based on cell cycle analysis, G2/M arrest was detected in cells treated with silver nanoparticles, implicating DNA damage. The high level of reactive oxygen species induced by nanoparticles is considered to be the main cause of their toxicity.
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Sosedova LM, Novikov MA, Titov EA, Rukavishnikov VS. [Induction of apoptosis in neurons of white rats under exposure of nanobiocomposite based on ag (0) nanoparticles and arabinogalactan]. Gig Sanit 2016; 95:1210-1213. [PMID: 29446584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
There are presented results of the immunohistochemical study of neural tissue of outbred albino rats exposed for 9 days to the influence of the silver nanobiocomposite consisted of silver nanoparticles encapsulated into a matrix of a natural polymer - arabinogalactan. The research of albino rats was performed in 2 stages: half of the rats in each groups were decapitated immediately after the exposure (early period) and the rest animals - 6 months after the end of exposure (remote period). The impact of the studied substance was proved to cause functional changes in cells of the nervous tissue. After the subacute administration of the nanobiocomposite - argentum-arabinogalactan (nano-Ag-AG) in cells of the nervous tissue of the brain of albino rats the expression of apoptotic and anti-apoptotic protein (caspase-3 and bcl-2) was established to be changed. The number of normal neurons producing protein caspase-3 sharply increases. Herewith the number of immunonegative neurons fairly declines. Along with this there is noted the high level of bcl-2 content, one function ofwhich is the preclusion ofapoptosis. In preparations there is revealed a significant gain in the number of bcl-2 expressing neurons, however, the protective effect of the protein is not fully realized, that leads to the significantly increase in the content of damaged hyperchromatic cells. The evaluation of results of the immunohistochemical study of the nervous tissue of albino rats according to data concerning the proteins caspase-3 and bcl-2 expression permits to make a conclusion about the capability of nanoargentum encapsulated into polymer matrix by passing the blood-brain barrier to induce the triggering apoptosis cascade in neurons of the cerebral cortex.
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Titov EA, Sosedova LM, Novikov MA. [Alteration of white rats brain tissue inducted by assessment of silver nanocomposite incapsulated in polymer matrix]. Patol Fiziol Eksp Ter 2015; 59:41-44. [PMID: 27116877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The paper present experimental materials of intragastric administration of silver nanoparticles encapsulated in polymer matrix of arabinogalactan by white outbred male rats. Animals were injected "pure" arabinogalactan and colloid silver solution containing silver macroform separately for comparison. Research provided data about status of brain tissue at the impact of these substances on organism. Histological analysis revealed the presence of a pathological process, character and intensity of which varied depending on the type of injected material. Pathological process under the influence of silver-arabinogalactan characterized by appearance in brain tissue of perivascular edema and development of acute inflammation in formation of glial scars, swelling of vascular bundles in sum.
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Lee YK. Author Response. Wounds 2015; 27:1-198. [PMID: 26405722] [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: 06/05/2023]
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Benskin L. Letter to the Editor. Wounds 2015; 27:1-198. [PMID: 26405721] [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: 06/05/2023]
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Saluja SS, Bowen AR, Hull CM. Resident Rounds: Part III - Case Report: Argyria – A Case of Blue-Gray Skin. J Drugs Dermatol 2015; 14:760-761. [PMID: 26368981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Argyria is an uncommon blue-gray pigmentation of the skin (increased in sun-exposed areas), nail unit, and mucous membranes caused by prolonged silver exposure. Commonly occurs in the setting of occupational exposure, silver-containing medications, or systemic absorption from use of silver sulfadiazine on extensive burns/wounds. Recently, there appears to be an increase in the practice of colloidal silver ingestion given the popularity and easy availability of alternative medicines and dietary supplements containing various silver-containing compounds. We report a case of argyria in a 72-year-old male following ingestion of colloidal silver as a supplement for over 10 years. He had a diffuse, blue-gray discoloration of his face and nails. A skin biopsy was performed and histology supported the clinical diagnosis of argyria. Our objective is to increase the awareness for this rare dermatologic entity by highlighting the clinical and histological features through a case report. Dermatologists should warn patients in regards to the use of colloidal silver for alternative health practices.
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Yeo ED, Yoon SA, Oh SR, Choi YS, Lee YK. Degree of the hazards of silver-containing dressings on MRSA-infected wounds in Sprague-Dawley and streptozotocin-induced diabetic rats. Wounds 2015; 27:95-102. [PMID: 25855853] [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: 06/04/2023]
Abstract
UNLABELLED Silver-containing dressings are commonly used on healing wounds, including diabetic ulcers. Some studies have shown that dressing materials with silver have negative effects on wound healing, specifically, that the wound healing process is inhibited by deposited silver. Therefore, the authors treated wounds infected with methicillin-resistant Staphylococcus aureus (MRSA) in Sprague-Dawley (SD) rats and streptozotocin (STZ)-induced diabetic rats with silver dressings to evaluate the risks of silver. MATERIALS AND METHODS The study used 54 SD rats and 54 STZ-induced diabetic rats. Full-thickness skin defects were created in all animals and then infected with MRSA. The rats were divided into 6 groups according to the dressing materials: nanocrystalline silver (Ac) (ACTICOAT, Smith and Nephew Healthcare, Hull, UK), silver carboxymethylcellulose (Aq) (AQUACEL Ag, ConvaTec, Bristol-Myers Squibb, Skillman, NJ), silver sulfadiazine (M) (Medifoam Silver, Biopol Global Co, Ltd, Seoul, Korea), nanocrystalline silver (P) (PolyMem Silver, Ferris Mfg Corp, Fort Worth, TX), Ilvadon cream (I) (Ildong Pharaceutical Co, Ltd, Seoul, Korea), and 10% povidone iodine (B) (Betadine, Sung Kwang Pharmaceutical Co Ltd, Gyeonggi-Do, Korea) as a control agent. Blood was collected from all animals to measure the hematological effects. The skin, spleen, liver, and kidneys of each rat were biopsied and used to make paraffin sections in which the silver deposition was measured using energy-dispersive spectrometry (EDS). RESULTS Fifteen days after wounding, only the Ac, P, and I groups differed significantly (P < 0.05) from the B group. The glutamic-oxaloacetic transaminase, blood urea nitrogen, and alkaline phosphatase levels differed significantly (P < 0.05) between the SD and STZ rats. No silver deposition was found in any organ. CONCLUSION The silver dressings induced slight liver damage in the STZ-rats. Although changes in serum chemistry caused by silver were seen, this did not indicate silver deposition in the organ as the EDS did not show excess levels. The risk of silver deposition appears to be low. The hazards of silver-containing dressing products in MRSA-infected wounds were insignificant.
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Affiliation(s)
- Eui Dong Yeo
- Department of Orthopedics, Soon Chun Hyang University Hospital Bucheon, Bucheon City, Gyeonggi-do, South Korea
| | - Su Ah Yoon
- Department of Orthopedics, Soon Chun Hyang University Hospital Bucheon, Bucheon City, Gyeonggi-do, South Korea
| | - Seong Rok Oh
- Department of Orthopedics, Soon Chun Hyang University Hospital Bucheon, Bucheon City, Gyeonggi-do, South Korea
| | - Young Suk Choi
- Department of Orthopedics, Soon Chun Hyang University Hospital Bucheon, Bucheon City, Gyeonggi-do, South Korea
| | - Young Koo Lee
- Department of Orthopedics, Soon Chun Hyang University Hospital Bucheon, Bucheon City, Gyeonggi-do, South Korea;
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Abstract
Taking advantage of imprinting technology, artificial antibody-microbial imprinted Ag-TiO(2) materials are fabricated for microbial inactivation using a facile and green method. Due to the induced shape and size recognition elements, the artificial antibodies specifically recognize and kill target microbes under visible-light irradiation with minimal toxic side effects toward mammalian cells.
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Affiliation(s)
- Zhijun Zhang
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China; University of Chinese Academy of Sciences, Beijing, 100039, China
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Baranova LA, Zhornik EV, Volotovski ID. [Influence of silver and titanium dioxide nanoparticles on the expression of genes of biomarkers of inflammatory responses and apoptosis]. Biofizika 2015; 60:234-241. [PMID: 26016020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In order to evaluate the toxic effect of silver (AgNP) and titanium dioxide (TiO2) nanoparticles their influence on the expression of genes of biomarkers of inflammatory responses and apoptosis in human lymphocytes was studied. An increase in the IL-6, IL-8, TNF-α and p53 genes expression in the concentration range of silver and titanium dioxide nanoparticles of 10-40 μk g/ml was found. Increased expression of IL-6, IL-8, TNF-α and p53 genes under the nanoparticles action indicates the stimulation of the immune system and of apoptosis, respectively.
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Aldossari AA, Shannahan JH, Podila R, Brown JM. Influence of physicochemical properties of silver nanoparticles on mast cell activation and degranulation. Toxicol In Vitro 2015; 29:195-203. [PMID: 25458489 PMCID: PMC4294974 DOI: 10.1016/j.tiv.2014.10.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [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: 08/29/2014] [Revised: 10/07/2014] [Accepted: 10/13/2014] [Indexed: 01/08/2023]
Abstract
Silver nanoparticles (AgNPs) are increasingly being incorporated into products for their antimicrobial properties. This has resulted in increased human exposures and the possibility of adverse health effects. Mast cells orchestrate allergic immune responses through degranulation and release of pre-formed mediators. Little data exists on understanding interactions of AgNPs with mast cells and the properties that influence activation and degranulation. Using bone marrow-derived mast cells and AgNPs of varying physicochemical properties we tested the hypothesis that AgNP physicochemical properties influence mast cell degranulation and osteopontin production. AgNPs evaluated included spherical 20 nm and 110 nm suspended in either polyvinylpyrrolidone (PVP) or citrate, Ag plates suspended in PVP of diameters between 40–60 nm or 100–130 nm, and Ag nanowires suspended in PVP with thicknesses <100 nm and length up to 2 μm. Mast cell responses were found to be dependent on the physicochemical properties of the AgNP. Further, we determined a role for scavenger receptor B1 in AgNP-induced mast cell responses. Mast cell degranulation was not dependent on AgNP dissolution but was prevented by tyrosine kinase inhibitor pretreatment. This study suggests that exposure to AgNPs may elicit adverse mast cell responses that could contribute to the initiation or exacerbation of allergic disease.
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Affiliation(s)
- Abdullah A. Aldossari
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, The University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
| | - Jonathan H. Shannahan
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, The University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
| | - Ramakrishna Podila
- Department of Physics and Astronomy, Clemson University, Clemson, South Carolina, 29634, USA
- Clemson Nanomaterials Center and COMSET, Clemson University, Anderson, South Carolina, 29625, USA
| | - Jared M. Brown
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, The University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
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Tishevskayal NV, Zakharovl YM, Bolotovl AA, Arkhipenko YV, Sazontova TG. [MAXIMUM SINGLE DOSE OF COLLOIDAL SILVER NEGATIVELY AFFECTS ERYTHROPOIESIS IN VITRO]. Eksp Klin Farmakol 2015; 78:32-35. [PMID: 26591205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Erythroblastic islets (EI) of rat bone marrow were cultured for 24 h in the presence of silver nanoparticles (1.07 · 10(-4) mg/ml; 1.07 · 10(-3) mg/ml; and 1.07 · 10(-2) mg/mL). The colloidal silver at 1.07 · 10(-3) mg/ml concentration inhibited the formation of new Elby disrupting contacts of bone marrow macrophages with CFU-E (erythropoiesis de novo) by 65.3% (p < 0.05). Colloidal silver nanoparticles suppressed the reconstruction of erythropoiesis and inhibited the formation of new EI by disrupting contacts of CFU-E and central macrophages with matured erythroidal "crown" (erythropoiesis de repeto). The colloidal silver concentration of 1.07 · 10(-3) mg/ml in the culture medium also reduced the number of self-reconstructing EI by 67.5% (p <0.05), whereas 1.07 · 10(-2) mg/ml colloidal silver reduced this value by 93.7% (p < 0.05). Silver nanoparticles retarded maturation of erythroid cells at the stage of oxiphylic normoblast denucleation: 1.07 · 10(-3) mg/ml colloidal silver increased the number of mature El by 53% (p < 0.05). The retardation of erythropoiesis by colloidal silver in concentration equivalent to the maximum single dose is related to the effect of silver nanoparticles rather than glycerol present in the colloidal suspension.
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Murdaca F, Feci L, Acciai S, Biagioli M, Fimiani M. Occupational argyria. GIORN ITAL DERMAT V 2014; 149:629-630. [PMID: 25213391] [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: 06/03/2023]
Affiliation(s)
- F Murdaca
- Dermatology Section, Department of Clinical Medicine and Immunology, Siena University, Siena, Italy -
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Feng H, Pyykkö I, Zou J. Hyaluronan up-regulation is linked to renal dysfunction and hearing loss induced by silver nanoparticles. Eur Arch Otorhinolaryngol 2014; 272:2629-42. [PMID: 25082176 DOI: 10.1007/s00405-014-3213-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 07/23/2014] [Indexed: 12/20/2022]
Abstract
Increased application of silver nanoparticles (AgNPs) has raised concerns on their potential adverse effects on human health. However, the precise toxicological mechanisms are not known in detail. The current study hypothesized that AgNPs induced glycosaminoglycan accumulation in the basement membrane that associated with the up-regulation of its component hyaluronic acid, known as a hydrophilic molecule of binding and retaining water, and caused toxicities in the kidney and cochlea. Rats administered AgNPs through either intravenous or intratympanic injection were observed at different time points after exposure. The concentrations of creatinine and urea in the serum were elevated remarkably, and proteins leaked into the urine were increased. A significant hearing loss over a broad range of frequencies was indicated. AgNP exposure induced glycosaminoglycan accumulation and hyaluronic acid up-regulation in the basement membrane. Abundant apoptotic cell death was demonstrated in the AgNP-exposed organs. Our results suggested that glycosaminoglycan accumulation associated with the up-regulation of hyaluronic acid was involved in the toxicities of kidney and cochlea caused by AgNPs.
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Affiliation(s)
- Hao Feng
- Hearing and Balance Research Unit, Field of Oto-laryngology, School of Medicine, University of Tampere, Medisiinarinkatu 3, Room C2165, 33520, Tampere, Finland
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