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Surface changes in rat gastric mucosa induced by sodium fluoride: a scanning electron microscopic study
Journal of Oral Pathology
|June 1, 1984
Summary
Sodium fluoride (NaF) in hydrochloric acid (HCl) damages rat gastric mucosa. Higher NaF concentrations (50 mM) caused significant cell loss around gastric gland openings, indicating dose-dependent effects on stomach lining.
Area of Science:
- Gastroenterology
- Toxicology
- Cell Biology
Background:
- Gastric mucosa integrity is crucial for digestive health.
- Understanding the effects of chemical agents on the stomach lining is important for preventing damage.
Purpose of the Study:
- To investigate the ultrastructural and topographical changes in rat gastric mucosa.
- To assess the impact of varying sodium fluoride (NaF) concentrations in hydrochloric acid (HCl) on gastric tissue.
Main Methods:
- Application of 0.1 N HCl (control) and 1, 10, or 50 mM NaF in 0.1 N HCl to rat stomachs.
- Microscopic examination of gastric mucosal tissue for morphological changes.
Main Results:
- No significant changes were observed with 1 mM NaF compared to the HCl control.
- 10 mM NaF induced mild desquamation of surface mucous epithelial cells.
- 50 mM NaF resulted in extensive damage to cells around gastric gland openings (foveolae) and interfoveolar cell loss.
Conclusions:
- Sodium fluoride exhibits dose-dependent toxicity to rat gastric mucosa.
- Higher concentrations of NaF can cause significant damage to the gastric epithelium, particularly around foveolae.