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A New Look at the Purported Health Benefits of Commercial and Natural Clays

Thumbnail
Awdur
Incledion, Alexander
Boseley, Megan
Moses, Rachael L.
Moseley, Ryan
Hill, Katja E.
Thomas, David W.
Adams, Rachel
Jones, Tim
BéruBé, Kelly
Dyddiad
2021-01-05
Dyddiad derbyn
2020-12-31
Math
Article
Cyhoeddwr
MDPI
ISSN
2218-273X
Metadata
Dangos cofnod eitem llawn
Crynodeb
Clays attributed to have medicinal properties have been used since prehistoric times and are still used today as complementary medicines, which has given rise to unregulated “bioceutical” clays to treat skin conditions. Recently, clays with antibacterial characteristics have been proposed as alternatives to antibiotics, potentially overcoming modern day antibiotic resistance. Clays with suggested antibacterial properties were examined to establish their effects on common wound-infecting bacteria. Geochemical, microscopical, and toxicological characterization of clay particulates, their suspensions and filtered leachates was performed on THP-1 and HaCaT cell lines. Cytoskeletal toxicity, cell proliferation/viability (MTT assays), and migration (scratch wounds) were further evaluated. Clays were assayed for antibacterial efficacy using minimum inhibitory concentration assays. All clays possessed a mineral content with antibacterial potential; however, clay leachates contained insufficient ions to have any antibacterial effects. All clay leachates displayed toxicity towards THP-1 monocytes, while clay suspensions showed less toxicity, suggesting immunogenicity. Reduced clay cytotoxicity on HaCaTs was shown, as many leachates stimulated wound-healing responses. The “Green” clay exhibited antibacterial effects and only in suspension, which was lost upon neutralization. pH and its interaction with clay particle surface charge is more significant than previously understood to emphasize dangers of unregulated marketing and unsubstantiated bioceutical claims
Cyfnodolyn/trafodion cynhadledd
Biomolecules;
Dyfyniad
Incledion, A., Boseley, M., Moses, R.L., Moseley, R., Hill, K.E., Thomas, D.W., Adams, R.A., Jones, T.P. and BéruBé, K.A. (2021) 'A New Look at the Purported Health Benefits of Commercial and Natural Clays', Biomolecules, 11(1), p.58. https://doi.org/10.3390/biom11010058
URI
http://hdl.handle.net/10369/11263
Dynodwr Gwrthrych Digidol (DOI)
https://doi.org/10.3390/biom11010058
Disgrifiad
Article published in Biomolecules available open access at https://doi.org/10.3390/biom11010058
Hawliau
https://creativecommons.org/licenses/by/4.0/
Nawdd
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
Casgliadau
  • Health and Risk Management [387]

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