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Reduced Gastric Mucosal Nerve Density in Functional Dyspepsia: Clinical Significance and Functional Correlation
Yao-Chun Yang1, Ping-Huei Tseng2, Chieh-Chang Chen2
1School of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan.
The American Journal of Gastroenterology
|January 6, 2025
Summary
Gastric mucosal nerve density (GMND) is reduced in functional dyspepsia (FD) patients, correlating inversely with symptom severity. This finding highlights potential neurological factors in FD pathogenesis.
Area of Science:
- Gastroenterology
- Neurology
- Pathophysiology
Background:
- Functional dyspepsia (FD) is a common gastrointestinal disorder with complex pathophysiology.
- Gastric mucosal nerve density (GMND) is a potential biomarker for gastrointestinal disorders.
Purpose of the Study:
- To quantitatively assess GMND in FD patients.
- To investigate the clinical correlation of GMND with FD symptoms and gastric function.
Main Methods:
- Prospective study comparing 35 FD patients and 16 healthy controls.
- GMND assessed via endoscopic biopsy.
- Gastric emptying scintigraphy and Gastroparesis Cardinal Symptom Index (GCSI) scores utilized.
Main Results:
- FD patients exhibited significantly lower GMND in the gastric antrum, body, and fundus compared to controls.
- GMND showed a significant inverse correlation with GCSI scores, indicating more severe symptoms with lower nerve density.
- No significant correlation was found between GMND and gastric emptying scintigraphy parameters.
Conclusions:
- GMND is reduced in patients with functional dyspepsia.
- Reduced GMND is associated with increased symptom severity in FD.
- These findings suggest a role for altered gastric innervation in FD pathophysiology.
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