Journals / Tüberküloz ve Toraks / 2004 / Cilt: 52 - Sayı: 3

The nitrosative effect of peripheral ischemia-reperfusion on lung and preventive of caffeic acid phenethyl ester

Periferik iskemi reperfüzyonun akciğerdeki nitrozatif etkileri ve "caffeic acid phenethyl ester"in koruyucu rolü

Pages
218–223
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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

In conclusion, peripheral IR leads to systemic inflammatory responses and endotheliai disfunction-induced NO production, and these harmful effects may reduced by CAPE.

📌 3 Key Takeaways

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Objective & Hypothesis:Ischemia-reperfusion (IR) is characterized by microvascular disfunction and this involves both direct effected organ and remote organ by systemic inflamatory respons.
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Key Findings & Data:Twenty-two adult male Wistar rats were divided into three groups: control (n= 7), IR (n= 7), and CAPE + IR (n= 8). 8 h IR period was performed on right hindlimb in the IR and the CAPE with IR group.
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Conclusion & Impact:In conclusion, peripheral IR leads to systemic inflammatory responses and endotheliai disfunction-induced NO production, and these harmful effects may reduced by CAPE.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Ischemia-reperfusion (IR) is characterized by microvascular disfunction and this involves both direct effected organ and remote organ by systemic inflamatory respons. These remote effects ofIR are most frequently observed in the lung and cardiovascular system. In this study we aim to determine lung damage which induced IR, and endotheliai and microvascular disfunction using nitrosavive markers. Previous studies suggest that caffeic acid phenethyl ester (CAPE) has some antioxidant effects. Therefore, we also investigated whether it has a role associated with nitric oxide during IR condition. Twenty-two adult male Wistar rats were divided into three groups: control (n= 7), IR (n= 7), and CAPE + IR (n= 8). 8 h IR period was performed on right hindlimb in the IR and the CAPE with IR group. In the CAPE with IR group, animals received CAPE 10 $mu$M l h before the reperfusion. At the end of the reperfusion period, blood, bronchoalveolar lauage (BAL) and lung tissue were obtained, and were used for biochemical and histopathological examination. There was a significantly elevation in serum nitrate, BAL MPO, and leukocyte infiltration in the lung in the IR group compared to the CAPE + IR group. But, serum nitrite and lung 3-HT levels were not different between these groups. While nitrate (p< 0.0001), MPO (p< 0.0001) and leukocyte infiltration (%2= 27.163, p= 0.0001), reduce by using CAPE before reperfusion, tissue 3-HT levels did not change. In conclusion, peripheral IR leads to systemic inflammatory responses and endotheliai disfunction-induced NO production, and these harmful effects may reduced by CAPE.

Özet

İskemi-reperfüzyon (İR), mikrovasküler fonksiyonların bozulması sonucu lokal ve sistemik inflamatuvar yanıt ile yaygın hasar oluşturabilen bir süreçtir. En sık etkilenen uzak organlar akciğerler ve kardiyovasküler sistemdir. Çalışmamızda ÎR bağımlı, endotelyal ve mikrovasküler fonksiyonlardaki bozulmayla oluşabilen akciğer hasarında nitrozatif markedarın etkisini inceledik. Antioksidan özellikleri ileri sürülen "Caffeic Acid Phenethyl Ester (CAPE) "in ÎR sürecinde nitrik oksitle ilişkili hasarı önlemedeki rolünü araştırdık. Yirmiiki yetişkin erkek Wistar rat, yedi kontrol, yedi ÎR ve sekiz ÎR + CAPE olmak üzere üç gruba ayrıldılar. ÎR ve CAPE + lR grubundaki ratlarda sağ bacak torakanter majör düzeyinde 8 saat ÎR oluşturuldu ve CAPE + lR grubundakilere reperfüzyondan önce 10 $mu$M CAPE verildi. Reperfüzyon sonunda kan, bronkoalveoler lavaj (BAL) ve akciğer dokusu elde edildi. Serumda nitrit ve nitrat düzeyleri, BAL miyeloperoksidaz (MPO) aktivitesi, akciğer dokusunda 3-nitrotirozin (3-HT) seviyeleri ve akciğerde lökosit infiltrasyonu araştırıldı. lR ve kontrol grubu karşılaştırıldığında nitrat, MPO ve lökosit infıltrasyonunda artış gözlemlenirken, nitrit ve 3-NT düzeylerinde önemli değişikliğe rastlanılmadı. CAPE kullanımı ile nitrat düzeyleri (p< 0.0001), MPO aktivitesi (p< 0.0001) ve peribronşiyal/perivasküler lökosit düzeylerini anlamlı ölçüde azaltırken ($x^2$= 27.163, p= 0.0001), doku 3-HT seviyelerinde önemli bir değişikliğe yol açmadı. Sonuç olarak, periferik ÎR sistemik inflamatuvar yanıt ve endotelyal fonksiyon bozukluğuna yol açarak uzak organları etkileyebilir ve bu zararlı etkilerin CAPE ile önlenebileceği söylenebilir.

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Cite This Article

ÇALIKOĞLU, M., ÜNLÜ, A., AKTAŞ, S., ÇALIKOĞLU, İ., TAMER, L., SUCU, N. (2022). The nitrosative effect of peripheral ischemia-reperfusion on lung and preventive of caffeic acid phenethyl ester. Tüberküloz ve Toraks, Cilt: 52 - Sayı: 3, 218–223. https://ajindex.com/articles/619245

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