A systematic review on the effects of nanomaterials on gut microbiota
Some nanomaterials (NMs) have been shown to possess antimicrobial activity and cause GM dysbiosis. Since NMs are being used widely, a systematic assessment of the effects of NMs on GM is warranted. In this systematic review, a total of 46 in vivo and 22 in vitro studies were retrieved from databases...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Current Research in Microbial Sciences |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666517422000153 |
| _version_ | 1811202200187174912 |
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| author | W Utembe N Tlotleng AW Kamng'ona |
| author_facet | W Utembe N Tlotleng AW Kamng'ona |
| author_sort | W Utembe |
| collection | DOAJ |
| description | Some nanomaterials (NMs) have been shown to possess antimicrobial activity and cause GM dysbiosis. Since NMs are being used widely, a systematic assessment of the effects of NMs on GM is warranted. In this systematic review, a total of 46 in vivo and 22 in vitro studies were retrieved from databases and search engines including Science-Direct, Pubmed and Google scholar. Criteria for assessment of studies included use of in vitro or in vivo studies, characterization of NMs, use of single or multiple doses as well as consistency of results. GM dysbiosis has been studied most widely on TiO2, Ag, Zn-based NMs. There was moderate evidence for GM dysbiosis caused by Zn- and Cu-based NMs, Cu-loaded chitosan NPs and Ag NMs, and anatase TiO2 NPs, as well as low evidence for SWCNTs, nanocellulose, SiO2, Se, nanoplastics, CeO2, MoO3 and graphene-based NMs. Most studies indicate adverse effects of NMs towards GM. However, more work is required to elucidate the differences on the reported effects of NM by type and sex of organisms, size, shape and surface properties of NMs as well as effects of exposure to mixtures of NMs. For consistency and better agreement among studies on GM dysbiosis, there is need for internationally agreed protocols on, inter alia, characterization of NMs, dosing (amounts, frequency and duration), use of sonication, test systems (both in vitro and in vivo), including oxygen levels for in vitro models. |
| first_indexed | 2024-04-12T02:34:53Z |
| format | Article |
| id | doaj.art-f0644a73681943aa97fef0b4d03233c6 |
| institution | Directory Open Access Journal |
| issn | 2666-5174 |
| language | English |
| last_indexed | 2024-04-12T02:34:53Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Microbial Sciences |
| spelling | doaj.art-f0644a73681943aa97fef0b4d03233c62022-12-22T03:51:36ZengElsevierCurrent Research in Microbial Sciences2666-51742022-01-013100118A systematic review on the effects of nanomaterials on gut microbiotaW Utembe0N Tlotleng1AW Kamng'ona2Toxicology and Biochemistry Department, National Institute for Occupational Health (NIOH), National Health Laboratory Services (NHLS), Johannesburg, South Africa; Department of Environmental Heath, Faculty of Health Sciences, University of Johannesburg, Johannesburg 2000, South Africa; Corresponding author at: W Utembe, Toxicology and Biochemistry Department, P.O Box 4788. Johannesburg 2000, South AfricaEpidemiology and Surveillance Department, NIOH, NHLS, Johannesburg, South AfricaDepartment of Biomedical Sciences, Kamuzu University of Health Sciences, Blantyre, MalawiSome nanomaterials (NMs) have been shown to possess antimicrobial activity and cause GM dysbiosis. Since NMs are being used widely, a systematic assessment of the effects of NMs on GM is warranted. In this systematic review, a total of 46 in vivo and 22 in vitro studies were retrieved from databases and search engines including Science-Direct, Pubmed and Google scholar. Criteria for assessment of studies included use of in vitro or in vivo studies, characterization of NMs, use of single or multiple doses as well as consistency of results. GM dysbiosis has been studied most widely on TiO2, Ag, Zn-based NMs. There was moderate evidence for GM dysbiosis caused by Zn- and Cu-based NMs, Cu-loaded chitosan NPs and Ag NMs, and anatase TiO2 NPs, as well as low evidence for SWCNTs, nanocellulose, SiO2, Se, nanoplastics, CeO2, MoO3 and graphene-based NMs. Most studies indicate adverse effects of NMs towards GM. However, more work is required to elucidate the differences on the reported effects of NM by type and sex of organisms, size, shape and surface properties of NMs as well as effects of exposure to mixtures of NMs. For consistency and better agreement among studies on GM dysbiosis, there is need for internationally agreed protocols on, inter alia, characterization of NMs, dosing (amounts, frequency and duration), use of sonication, test systems (both in vitro and in vivo), including oxygen levels for in vitro models.http://www.sciencedirect.com/science/article/pii/S2666517422000153NanomaterialsGut microbiotaDysbiosisExposureMetabolic disease |
| spellingShingle | W Utembe N Tlotleng AW Kamng'ona A systematic review on the effects of nanomaterials on gut microbiota Current Research in Microbial Sciences Nanomaterials Gut microbiota Dysbiosis Exposure Metabolic disease |
| title | A systematic review on the effects of nanomaterials on gut microbiota |
| title_full | A systematic review on the effects of nanomaterials on gut microbiota |
| title_fullStr | A systematic review on the effects of nanomaterials on gut microbiota |
| title_full_unstemmed | A systematic review on the effects of nanomaterials on gut microbiota |
| title_short | A systematic review on the effects of nanomaterials on gut microbiota |
| title_sort | systematic review on the effects of nanomaterials on gut microbiota |
| topic | Nanomaterials Gut microbiota Dysbiosis Exposure Metabolic disease |
| url | http://www.sciencedirect.com/science/article/pii/S2666517422000153 |
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