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Intestinal barrier damage involved in intestinal microflora changes in fluoride-induced mice
Abstract
Intestinal microflora play an important role in maintaining the homeostasis of the intestinal microenvironment, but fluoride-induced changes in intestinal mechanical barrier and intestinal microflora have not been well studied. Given this paucity of information, this study aims to determine the effects of high fluoride level on intestinal mechanical barrier and intestinal microflora in the cecum of mice. Seventy-two female 21-day-old Kunming mice were randomly assigned to three groups and raised for 70 days. Changes in intestinal pathomorphology and intestinal epithelial cell proliferation were observed by haematoxylin and eosin-staining and Brdu measurement, respectively. The distribution of goblet cells, glycoproteins and mast cells was analysed through Alcian blue and periodic acid-Schiff (AB-PAS) staining, Periodic Acid-Schiff (PAS) staining, and toluidine blue staining. Results showed that excessive fluoride damaged the structure of the cecal tissues, inhibited epithelial cell proliferation and decreased the relative distribution of goblet cells, glycoproteins and mast cells that are involved in defense responses. Intestinal microflora sequencing analysis revealed that the composition of the diversity and composition of intestinal microflora was altered by excessive fluoride based on 16S rRNA amplicon sequencing. The relative abundance of Firmicutes (P = 0.03174), Bacteroidetes (P = 0.04462), Actinobacteria (P = 0.01085) and Spirochacteria (P = 0.04084) was significantly…
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“glycoproteins31,49”
From Effect of Fluoride on Gut Microbiota: A Systematic Review (2025) · cites this paper as [31]
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“Associated genera were also implicated across the control and treated groups, including the lower abundance of Lactobacilli, Faecalibacterium, and Bifidobacterium31,32,36,37,40,46,50,52”
From Effect of Fluoride on Gut Microbiota: A Systematic Review (2025) · cites this paper as [31]
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Ma, Z.-J., Wang, H.-J., Ma, X.-J., Li, Y., Yang, H.-J., Li, H., Su, J.-R., Zhang, C.-E., & Huang, L.-Q. (2020) · Food & Function · doi:10.1039/d0fo01536a · Cited by 62
Self-citationDoes fluoride exposure impact on the human microbiome?
Moran, G. P., Zgaga, L., Daly, B., Harding, M., & Montgomery, T. (2023) · Toxicology Letters · doi:10.1016/j.toxlet.2023.03.001 · Cited by 18
Effect of Fluoride on Gut Microbiota: A Systematic Review
Yasin, M., Zohoori, F. V., Kumah, E. A., Subramanian, M., Dean, P., & Orr, C. H. (2025) · Nutrition Reviews · doi:10.1093/nutrit/nuae202 · Cited by 8
Metadata
- Authors
- Liu, J., Wang, H.-W., Lin, L., Miao, C.-Y., Zhang, Y., & Zhou, B.-H.
- ORCID
- Wang, Hong-wei
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2019-11
- Volume
- 234
- Pages
- 409-418
- ISSN
- 0045-6535
- Cited by
- 100
- References
- 3
- Language
- en
- Funders
- National Natural Science Foundation of China
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