Journals / Turkish Journal of Gastroenterology / 2013 / Cilt: 24 - Sayı: 3

The effects of chronic bile reflux on the gastric mucosa of rats

S›çanlarda kronik safra reflüsünün gastrik mukoza üzerine olan etkileri

Pages
251–259
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

Conclusions: When simulating the physiological bile reflux path- way, chronic bile reflux caused hyperplasia and expansion of gastric glands in the glandular stomach and squamous epithelial hyperplasia and keratinization in the forestomach

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: To establish a rat model mimicking human bile reflux for studying the pathological effects of chronic bile ref- lux.
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Key Findings & Data:After the rats demonstrated bile reflux for 1 ye- ar, we studied the pathological features of the glandular stomach and forestomach mucosa.
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Conclusion & Impact:Conclusions: When simulating the physiological bile reflux path- way, chronic bile reflux caused hyperplasia and expansion of gastric glands in the glandular stomach and squamous epithelial hyperplasia and keratinization in the forestomach
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aims: To establish a rat model mimicking human bile reflux for studying the pathological effects of chronic bile ref- lux. Materials and Methods: The duodenum of Sprague–Dawley rats was transected below the opening of the common bile duct, and a gastrojejunostomy was performed at the greater curvature of the forestomach. After the rats demonstrated bile reflux for 1 ye- ar, we studied the pathological features of the glandular stomach and forestomach mucosa. We also studied the effect of bile reflux on gastrin expression in the glandular stomach mucosa by using immunohistochemistry. Results: Chronic bile reflux caused signi- ficant hyperplasia and expansion of gastric glands in the glandular stomach. Dysplasia and cancer formation also developed, but the incidence was significantly lower than that reported in the literature. Intestinal metaplasia and ulceration in the glandular sto- mach were also rare. In the forestomach, the squamous epithelium showed significant hyperplasia and keratinization along with keratin pearls and keratocysts. Intestinal metaplasia was rare and no tumorigenesis was observed. Chronic bile reflux significantly increased gastrin expression in the glandular stomach mucosa. Conclusions: When simulating the physiological bile reflux path- way, chronic bile reflux caused hyperplasia and expansion of gastric glands in the glandular stomach and squamous epithelial hyperplasia and keratinization in the forestomach

Özet

Amaç: Kronik safra reflüsünün etkilerini araştırmak amacı ile hayvan modeli oluşturması amaçlanmıştır. Gereç ve Yöntem:Sprague-Dawley cinsi sıçanların duodenumu safra duktusunun açılımının distalinden diseke edildi. midenin büyük kurvaturunagastrojejunostomi anastomozu gerçekleştirildi. Bir yıl kadar safra reflüsü ile izlendikten sonra mide mukozasındaki patolojik değişiklikleri incelemek üzere glandüler ve ön mide mukozaları incelendi. Ayrıca, safra reflüsünün glandüler mukozadaki gastrin ekspresyonuna olan etkisini incelemek için immunohistokimyasal yöntemler kullanıldı. Bulgular: Kronik safra reflüsü, glandülergastrik mukoza üzerinde belirgin hiperplatik ve ekspansiyona neden olmaktaydı. Displazi ve kanser gelişimi de gözlendi ancak insidansı literatürdekine göre düşük bulundu. İntestinal metaplazi ve ülser gelişimi de nadir olarak gözlendi. Ön midede skuamözepitelde anlamlı hiperplazi, keratinizasyon ile beraber keratin incileri ve keratokistler izlendi. Ayrıca intestinal metaplazi nadirdive tümörogenez gözlenmedi. Kronik safra reflüsünün glandüler mukozada gastrin ekspresyonunda anlamlı artışa neden olduğu görüldü. Sonuç: Fizyolojik safra reflüsü taklit edildiği yöntemde, kronik safra reflüsü glandüler mide mukozasında hiperplaziye veekspansiyona neden olurken, skuamöz epitelde hiperplazi ve keratinizasyona neden olmaktadır

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Cite This Article

WANG, X., TANG, J., CAO, Q. (2013). The effects of chronic bile reflux on the gastric mucosa of rats. Turkish Journal of Gastroenterology, Cilt: 24 - Sayı: 3, 251–259. https://ajindex.com/articles/409610

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