Journals / Turkish Journal of Gastroenterology / 2013 / Cilt: 24 - Sayı: 2

Safra yolu ligasyonu yapılan ratlarda PPAR-alfa agonist tedavisi trefoil faktör ailesi-3 ekspresyonunu artırır ve apoptozisi baskılar

PPAR-alpha agonist treatment increases trefoil factor family-3 expression and attenuates apoptosis in the liver tissue of bile duct-ligated rats

Pages
134–140
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Further studies are needed to determine the protective role of fenofibrate in human cholestatic disorders.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: Peroxisome proliferators-activated receptor alpha activation modulates cholesterol metabolism and suppresses bile acid synthesis.
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Key Findings & Data:The trefoil factor family comprises mucin-associated proteins that increase the viscosity of mucins and help pro- tect epithelial linings from insults.
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Conclusion & Impact:Further studies are needed to determine the protective role of fenofibrate in human cholestatic disorders.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aims: Peroxisome proliferators-activated receptor alpha activation modulates cholesterol metabolism and suppresses bile acid synthesis. The trefoil factor family comprises mucin-associated proteins that increase the viscosity of mucins and help pro- tect epithelial linings from insults. We evaluated the effect of short-term administration of fenofibrate, a peroxisome proliferators- activated receptor alpha agonist, on trefoil factor family-3 expression, degree of apoptosis, generation of free radicals, and levels of proinflammatory cytokines in the liver tissue of bile duct-ligated rats. Materials and Methods: Forty male Wistar rats were ran- domly divided into four groups: 1 = sham operated, 2 = bile duct ligation, 3 = bile duct-ligated + vehicle (gum Arabic), and 4 = bi- le duct-ligated + fenofibrate (100 mg/kg/day). All rats were sacrificed on the 7th day after obtaining blood samples and liver tissu- e. Liver function tests, tumor necrosis factor-alpha and interleukin 1 beta in serum, and trefoil factor family-3 mRNA expression, degree of apoptosis (TUNEL) and tissue malondialdehyde (malondialdehyde, end-product of lipid peroxidation by reactive oxygen species) in liver tissue were evaluated. Results: Fenofibrate administration significantly reduced serum total bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, gamma-glutamyl transferase, and tumor necrosis factor-alpha and interleukin-1β levels. Apoptosis and malondialdehyde were significantly reduced in the fenofibrate group. Trefoil factor family- 3 expression increased with fenofibrate treatment in bile duct-ligated rats. Conclusions: The peroxisome proliferators-activated re- ceptor alpha agonist fenofibrate significantly increased trefoil factor family-3 expression and decreased apoptosis and lipid peroxi- dation in the liver and attenuated serum levels of proinflammatory cytokines in bile duct-ligated rats. Further studies are needed to determine the protective role of fenofibrate in human cholestatic disorders.

Özet

Amaç: Peroksizom proliferatör aktive reseptör aktivasyonu, kolesterol metabolizmasını modüle eder ve safra asidi sentezini baskı- lar. Trefoil faktör ailesi musinlerin vizkozitesini artıran ve epitel hücrelerini zararlara karşı koruyan musin-içeren proteinlerdir. Bu çalışmada, kısa dönem peroksizom proliferatör aktive reseptör-alfa agonisti (fenofibrat) uygulamasının trefoil faktör ailesi-3 ekspresyonu, apoptozis derecesi, serbest radikal oluşumu ve karaciğer dokusundaki proinşamatuvar sitokin düzeylerine etkisi saf- ra yolu ligasyonu yapılan ratlarda araştırıldı. Materyal-metod: Kırk erkek Wistar rat rastgele dört gruba ayrıldı: I= sham ope- rasyonu, II=safra yolu ligasyonu, III= safra yolu ligasyonu+fenofibrat (100 mg/kg/gün), IV=safra yolu ligasyonu+araç (gum Ara- bic). Tüm ratlar kan ve karaciğer örnekleri alındıktan sonra 7. gün sakrifiye edildi. Karaciğer fonksiyon testleri, tumor nekrozis faktör alfa, interlökin 1 beta serumda, trefoil faktör ailesi-3 ekspresyonu, apoptozis derecesi (TUNEL), ve dokuda malondialdehid (malondialdehid, reaktif oksijen derivelerinin oluşturduğu lipid peroksidasyonunun son ürünü) karaciğer dokusunda ölçüldü. Bul- gular: Fenofibrat uygulaması serum total bilirubin, aspartat aminotransferaz, alanin aminotransferaz, alkalin fosfataz ve gama- glutamil transferaz, tümor nekrozis faktör-alfa ve interlökin-1beta düzeylerini anlamlı olarak azalttı. Fenofibrat grubunda apop- tozis ve malondialdehid anlamlı olarak azaldı. Safra yolu ligasyonu yapılan ratlarda fenofibrat tedavisi ile trefoil faktör ailesi-3 ekspresyonunda artış gözlendi. Sonuç: Peroksizom proliferatör aktive reseptör-alfa agonist, fenofibrat trefoil faktör ailesi-3 ekspres- yonunu artırırken, apoptozis ve lipid peroksidasyonunu karaciğer dokusunda azalttı. Ayrıca safra yolu ligasyonu yapılan ratlarda serum proinşamatuvar sitokinlerin düzeyini de azalttı. ‹nsan kolestatik hastalıklarında fenofibratın kullanılması için daha geniş çalışmalara ihtiyaç vardır.

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Cite This Article

KARAKAN, T., KEREM, M., CİNDORUK, M., ENGİN, E. D., ULAŞLI, A. M., AKIN, O. (2013). Safra yolu ligasyonu yapılan ratlarda PPAR-alfa agonist tedavisi trefoil faktör ailesi-3 ekspresyonunu artırır ve apoptozisi baskılar. Turkish Journal of Gastroenterology, Cilt: 24 - Sayı: 2, 134–140. https://ajindex.com/articles/409602

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