How Ghrelin Affects Gastric Mucosal Cells During H. pylori Infection
Author Information
Author(s): Bronislaw L. Slomiany, Amalia Slomiany
Primary Institution: University of Medicine and Dentistry of New Jersey Dental School
Hypothesis
Ghrelin modulates the effects of H. pylori lipopolysaccharide on gastric mucosal cell signaling.
Conclusion
Ghrelin protects gastric mucosal cells from H. pylori-induced damage by enhancing Akt activity and reducing S-nitrosylation.
Supporting Evidence
- Ghrelin increased Akt activity twofold in the presence of H. pylori LPS.
- LPS caused a 39% drop in Akt phosphorylation at Ser473.
- Ghrelin reversed the LPS-induced decrease in cNOS activity by 77.7%.
- Ghrelin reduced iNOS activity by 90.2% in the presence of LPS.
- iNOS inhibition decreased Akt S-nitrosylation in gastric mucosal cells.
Takeaway
Ghrelin helps protect stomach cells from damage caused by a bacteria called H. pylori by making a protein called Akt work better.
Methodology
Rat gastric mucosal cells were treated with H. pylori LPS and ghrelin, and various assays were performed to measure cell signaling and enzyme activity.
Limitations
The study was conducted in vitro using rat cells, which may not fully represent human responses.
Participant Demographics
Rat gastric mucosal cells were used in the experiments.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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