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Gastric cell proliferation kinetics and bile reflux after partial gastrectomy
P Bechi1, M Balzi, A Becciolini
1Istituti di Clinica Chirurgica e Discipline Chirurgiche, Anatomia ed Istologia Patologica, Università di Firenze, Florence, Italy.
The American Journal of Gastroenterology
|October 1, 1991
Summary
Bile reflux after gastrectomy, particularly Billroth II, is linked to gastric changes like foveolar hyperplasia and altered cell kinetics. These findings suggest new surveillance tools for post-gastric surgery patients.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Cell Biology
Background:
- Partial gastrectomy procedures, including Billroth I and Billroth II, can lead to bile reflux.
- The impact of bile reflux on gastric histology and cell proliferation kinetics requires further investigation.
Purpose of the Study:
- To assess the relationships between bile reflux, gastric histology, and cell proliferation kinetics in patients with different types of partial gastrectomy.
- To explore the potential of these findings for post-gastrectomy surveillance.
Main Methods:
- Studied 34 randomized, partially gastrectomized subjects (Billroth II, Billroth I, total biliary diversion).
- Quantified bile acid concentration in gastric aspirates.
- Assessed gastric histology (foveolar hyperplasia) and cell proliferation kinetics (pit cell number, labeling index).
Main Results:
- Bile acid concentration decreased progressively from Billroth II to Billroth I to total biliary diversion.
- Foveolar hyperplasia was most pronounced in Billroth II subjects and correlated with bile acid concentration.
- Cell kinetic parameters mirrored foveolar hyperplasia, with higher values in subjects with elevated bile acid concentrations (>150 mumol/L).
Conclusions:
- A strong relationship exists between post-gastrectomy bile reflux, foveolar hyperplasia, and cell kinetic parameters.
- Gastric adaptation to chronic bile reflux exposure is indicated by histologic and cell kinetic findings.
- These findings may offer new tools for post-gastrectomy surveillance and understanding gastric carcinogenesis.