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Malinowska K, Bukowska B, Piwoński I, Foksiński M, Kisielewska A, Zarakowska E, Gackowski D, Sicińska P. Polystyrene nanoparticles: the mechanism of their genotoxicity in human peripheral blood mononuclear cells. Nanotoxicology 2022; 16:791-811. [PMID: 36427221 DOI: 10.1080/17435390.2022.2149360] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Plastic nanoparticles are widely spread in the biosphere, but health risk associated with their effect on the human organism has not yet been assessed. The purpose of this study was to determine the genotoxic potential of non-functionalized polystyrene nanoparticles (PS-NPs) of different diameters of 29, 44, and 72 nm in human peripheral blood mononuclear cells (PBMCs) (in vitro). To select non-cytotoxic concentrations of tested PS-NPs, we analyzed metabolic activity of PBMCs incubated with these particles in concentrations ranging from 0.001 to 1000 µg/mL. Then, PS-NPs were used in concentrations from 0.0001 to 100 μg/mL and incubated with tested cells for 24 h. Physico-chemical properties of PS-NPs in media and suspension were analyzed using dynamic light scattering (DLS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and zeta potential. For the first time, we investigated the mechanism of genotoxic action of PS-NPs based on detection of single/double DNA strand-breaks and 8-oxo-2'-deoxyguanosine (8-oxodG) formation, as well as determination of oxidative modification of purines and pyrimidines and repair efficiency of DNA damage. Obtained results have shown that PS-NPs caused a decrease in PBMCs metabolic activity, increased single/double-strand break formation, oxidized purines and pyrimidines and increased 8oxodG levels. The resulting damage was completely repaired in the case of the largest PS-NPs. It was also found that extent of genotoxic changes in PBMCs depended on the size of tested particles and their ζ-potential value.
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Affiliation(s)
- Kinga Malinowska
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Bożena Bukowska
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Ireneusz Piwoński
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Lodz, Poland
| | - Marek Foksiński
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Aneta Kisielewska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Lodz, Poland
| | - Ewelina Zarakowska
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Daniel Gackowski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Paulina Sicińska
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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Heath A, Levay P, Tuvey D. Literature searching methods or guidance and their application to public health topics: A narrative review. Health Info Libr J 2021; 39:6-21. [PMID: 34850535 PMCID: PMC9300102 DOI: 10.1111/hir.12414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 09/23/2021] [Accepted: 11/02/2021] [Indexed: 12/19/2022]
Abstract
Background Information specialists conducting searches for systematic reviews need to consider key questions around which and how many sources to search. This is particularly important for public health topics where evidence may be found in diverse sources. Objectives The objective of this review is to give an overview of recent studies on information retrieval guidance and methods that could be applied to public health evidence and used to guide future searches. Methods A literature search was performed in core databases and supplemented by browsing health information journals and citation searching. Results were sifted and reviewed. Results Seventy‐two papers were found and grouped into themes covering sources and search techniques. Public health topics were poorly covered in this literature. Discussion Many researchers follow the recommendations to search multiple databases. The review topic influences decisions about sources. Additional sources covering grey literature eliminate bias but are time‐consuming and difficult to search systematically. Public health searching is complex, often requiring searches in multidisciplinary sources and using additional methods. Conclusions Search planning is advisable to enable decisions about which and how many sources to search. This could improve with more work on modelling search scenarios, particularly in public health topics, to examine where publications were found and guide future research.
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Affiliation(s)
- Andrea Heath
- Information Services, National Institute for Health and Care Excellence (NICE), London, UK
| | - Paul Levay
- Information Services, National Institute for Health and Care Excellence (NICE), Manchester, UK
| | - Daniel Tuvey
- Information Services, National Institute for Health and Care Excellence (NICE), London, UK
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Kik K, Bukowska B, Krokosz A, Sicińska P. Oxidative Properties of Polystyrene Nanoparticles with Different Diameters in Human Peripheral Blood Mononuclear Cells (In Vitro Study). Int J Mol Sci 2021; 22:ijms22094406. [PMID: 33922469 PMCID: PMC8122768 DOI: 10.3390/ijms22094406] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
With the ongoing commercialization, human exposure to plastic nanoparticles will dramatically increase, and evaluation of their potential toxicity is essential. There is an ongoing discussion on the human health effects induced by plastic particles. For this reason, in our work, we assessed the effect of polystyrene nanoparticles (PS-NPs) of various diameters (29, 44 and 72 nm) on selected parameters of oxidative stress and the viability of human peripheral blood mononuclear cells (PBMCs) in the in vitro system. Cells were incubated with PS-NPs for 24 h in the concentration range of 0.001 to 100 µg/mL and then labeled: formation of reactive oxygen species (ROS) (including hydroxyl radical), protein and lipid oxidation and cell viability. We showed that PS-NPs disturbed the redox balance in PBMCs. They increased ROS levels and induced lipid and protein oxidation, and, finally, the tested nanoparticles induced a decrease in PBMCs viability. The earliest changes in the PBMCs were observed in cells incubated with the smallest PS-NPs, at a concentration of 0.01 μg/mL. A comparison of the action of the studied nanoparticles showed that PS-NPs (29 nm) exhibited a stronger oxidative potential in PBMCs. We concluded that the toxicity and oxidative properties of the PS-NPs examined depended to significant degree on their diameter.
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Kik K, Bukowska B, Sicińska P. Polystyrene nanoparticles: Sources, occurrence in the environment, distribution in tissues, accumulation and toxicity to various organisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 262:114297. [PMID: 32155552 DOI: 10.1016/j.envpol.2020.114297] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 02/17/2020] [Accepted: 02/28/2020] [Indexed: 05/14/2023]
Abstract
Civilization development is associated with the use of plastic. When plastic was introduced to the market, it was assumed that it was less toxic than glass. Recently, it is known that plastics are serious ecological problem they, do not degrade and remain in the environment for hundreds of years. Plastic may be degraded into micro-particles < 5000 nm in diameter, and further into nanoparticles (NPs) < 100 nm in diameter. NPs have been detected in air, soil, water and sludge. One of the most commonly used plastics is polystyrene (PS) - a product of polymerization of styrene monomers. It is used for the production of styrofoam and other products like toys, CDs and cup covers. In vivo and in vitro studies have suggested that polystyrene nanoparticles (PS-NPs) may penetrate organisms through several routes i.e. skin, respiratory and digestive tracts. They can be deposited in living organisms and accumulate further along the food chain. NPs are surrounded by "protein corona" that allows them penetrating cellular membranes and interacting with cellular structures. Depending on the cell type, NPs may be transported through pinocytosis, phagocytosis, or be transported passively. Currently there are no studies that would indicate a carcinogenic potential of PS-NPs. On the other hand, the PS monomer (styrene) was classified by the International Agency for Research on Cancer (IARC) as a potentially carcinogenic substance (carcinogenicity class B2). Despite of the widespread use of plastics and the presence of plastic NPs of secondary or primary nature, there are no studies that would assess the effect of those substances on human organism. This study was aimed at the review of the literature data concerning the formation of PS-NPs in the environment, their accumulation along the food chain, and their potential adverse effects on organisms on living various organization levels.
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Affiliation(s)
- Kinga Kik
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Biophysics of Environmental Pollution, Pomorska 141/143 Str., 90-236 Lodz, Poland
| | - Bożena Bukowska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Biophysics of Environmental Pollution, Pomorska 141/143 Str., 90-236 Lodz, Poland
| | - Paulina Sicińska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Biophysics of Environmental Pollution, Pomorska 141/143 Str., 90-236 Lodz, Poland.
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Young BR, Gwede CK, Thomas B, Vázquez-Otero C, Ewing A, Best AL, Aguado Loi CX, Martinez-Tyson D, Schneider T, Meade CD, Baldwin JA, Bryant C. A Systematic Review of U.S.-Based Colorectal Cancer Screening Uptake Intervention Systematic Reviews: Available Evidence and Lessons Learned for Research and Practice. Front Public Health 2019; 7:145. [PMID: 31245345 PMCID: PMC6579825 DOI: 10.3389/fpubh.2019.00145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 05/21/2019] [Indexed: 01/08/2023] Open
Abstract
Background: We examined colorectal cancer screening (CRCS) intervention effectiveness, through the effect sizes associated with: (1) screening modality, (2) intervention level (e.g., client-directed), and (3) intervention component (e.g. client reminders) within published CRCS intervention systematic reviews (SRs). Methods: A search of peer-reviewed CRCS SRs that were written in English was employed utilizing five databases: CINAHL, Cochrane Library, rTIPS, PubMed, and PsycINFO EBSCOHOST. SRs that included CRCS interventions with a randomized controlled trial, quasi-experimental, or single arm design were eligible. Data on effect sizes by screening modality, intervention level, and intervention component were extracted and synthesized. Results: There were 16 eligible CRCS intervention SRs that included 116 studies published between 1986 and 2013. Reviews organized data by CRCS screening modality, or intervention component. Effect size reporting varied by format (i.e., ranges, medians of multiple studies, or effect size per study), and groupings of modalities and components. Overall, the largest effect sizes were for studies that utilized a combination of colonoscopy, fecal occult blood test (FOBT), and sigmoidoscopy as screening options (16–45 percentage point difference). Conclusions: Evidence suggests that CRCS interventions which include a combination of screening modalities may be most effective. This is the first SR to examine effect sizes of published CRCS SRs. However, because some SRs did not report effect sizes and there were tremendous variability reporting formats among those that did, a standard reporting format is warranted. Synthesizing findings can contribute to improved knowledge of evidence-based best-practices, direct translation of findings into policy and practice, and guide further research in CRCS.
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Affiliation(s)
- Belinda-Rose Young
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Clement K Gwede
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States.,Moffitt Cancer Center & Research Institute and Morsani, College of Medicine, University of South Florida, Tampa, FL, United States
| | - Bria Thomas
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Coralia Vázquez-Otero
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Aldenise Ewing
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Alicia L Best
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Claudia X Aguado Loi
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States.,Health Sciences and Human Performance Department, University of Tampa, Tampa, FL, United States
| | - Dinorah Martinez-Tyson
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Tali Schneider
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
| | - Cathy D Meade
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States.,Moffitt Cancer Center & Research Institute and Morsani, College of Medicine, University of South Florida, Tampa, FL, United States
| | - Julie A Baldwin
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States.,Health Sciences Department, Northern Arizona University, Flagstaff, AZ, United States
| | - Carol Bryant
- Prevention Research Center, College of Public Health, University of South Florida, Tampa, FL, United States
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Wanner A, Baumann N. Design and implementation of a tool for conversion of search strategies between PubMed and Ovid MEDLINE. Res Synth Methods 2018; 10:154-160. [PMID: 30067314 DOI: 10.1002/jrsm.1314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/16/2018] [Accepted: 07/10/2018] [Indexed: 11/12/2022]
Abstract
BACKGROUND Both PubMed and Ovid MEDLINE contain records from the MEDLINE database. However, there are subtle differences in content, functionality, and search syntax between the two. There are many instances in which researchers may wish to search both interfaces, such as when conducting supplementary searching for a systematic review to retrieve a unique content from PubMed or when using a previously published search strategy from a different interface, but little guidance on how to best conduct these searches. The aim of this project is to describe differences in search functionality between Ovid MEDLINE and PubMed, provide guidance for converting search strategies between the two, and develop an easy-to-use, freely available web-based tool to automate search syntax translations. CASE PRESENTATION In this paper, we present a custom-built freely available online tool, Medline Transpose, to streamline the process of converting search strategies between Ovid MEDLINE and PubMed. With this tool, users can paste a strategy formatted for one interface into the search box and immediately retrieve an output formatted for use in the other interface, with recommendations for changes that users can make to the strategy where an exact translation does not exist. CONCLUSION This novel approach has the potential to reduce time and errors that database users spend translating search strategies.
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Affiliation(s)
- Amanda Wanner
- Primary and Community Care Research Group, University of Plymouth, Plymouth, UK
| | - Niki Baumann
- Library Services, College of Physicians and Surgeons of British Columbia, Vancouver, Canada
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