Journals / Anadolu Kardiyoloji Dergisi / 2007 / Cilt: 7 - Sayı: 4

İzole sıçan kalplerine uygulanan iskemi/reperfüzyon hasarında quercetinin koruyucu etkisi: Kronik kullanımda artmış antioksidan etkinliği

Dietary polyphenol quercetin protects rat hearts during reperfusion:Enhanced antioxidant capacity with chronic treatment

Pages
404–410
Publication Date
2022-11-05
DOI
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According to all estimated hemodynamic parameters, while the statistical difference between acute treated hearts andcontrol hearts was significant (p

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Quercetin is an important member of dietary flavonoid family and widely present in red wine and Mediterranean diet.
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Key Findings & Data:Methods: Forty male Sprague-Dawley rats were included in this experimental randomized study/ Langendorff perfused isolated rat hearts were subjected to 60-min of global ischemia period following 60-min of reperfusion.
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Conclusion & Impact:According to all estimated hemodynamic parameters, while the statistical difference between acute treated hearts andcontrol hearts was significant (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Quercetin is an important member of dietary flavonoid family and widely present in red wine and Mediterranean diet. The majorobjective of the this study is to evaluate the beneficial effects of quercetin in protecting the myocardium from the deleterious effects of ischemia reperfusion (I/R) injury in chronic quercetin treatment with or without an acute quercetin infusion protocols. Methods: Forty male Sprague-Dawley rats were included in this experimental randomized study/ Langendorff perfused isolated rat hearts were subjected to 60-min of global ischemia period following 60-min of reperfusion. All animals were randomly divided into 4 groups. Group 1 animals were kept as controls. Group 3 and 4 animals received 50 mg/kg quercetin via an intragastric tube for 7 days for chronic treatment. Group 2 and 4 animals received an acute 15 mmol/L infusion for 30 minutes before the onset of ischemia. The myocardial postischemic recovery wascompared using hemodynamic data (peak systolic pressure, end-diastolic pressure and +dP/dtmax), coronary flow, biochemical parameters(lactate dehydrogenase, creatine kinase –MB fraction, cardiac troponin I) from coronary effluent, and oxidative stress markers (malondialdehyde, glutathione, glutathione reductase and nitrite) from heart tissue homogenates in each group.Results: Quercetin has provided increased preservation in myocardial recovery in both chronic and acute treatment protocols compared tonon-treated group. According to all estimated hemodynamic parameters, while the statistical difference between acute treated hearts andcontrol hearts was significant (p

Özet

Amaç: Quercetin Akdeniz diyetinde bol miktarda bulunan polifenol yapıda bir maddedir ve güçlü bir antioksidandır. Bu çalışmanın amacı sıçan kalplerine kronik tedavi ve akut infüzyon olarak verilen quercetinin iskemi-reperfüzyon hasarına karşı koruyucu etkinliğini saptamaktır. Yöntemler: Bu deneysel randomize çalışmaya kırk adet erkek Sprague-Dawley sıçan dahil edildi. İzole kalpler Langendorff sistemine asılarak Krebbs-Henseleit solüsyonu ile perfüze edildi. Kalpler 60 dakika global iskemiyi takiben 60 dakika reperfüzyon uygulandı. Sıçanlar rasgele 4 gruba ayrıldı. Grup 1 kalpler kontrol grubu olarak kabul edildi. Grup 3 ve grup 4’deki sıçanlara deney öncesi bir hafta boyunca 50 mgr/kg oral quercetin verildi. Grup 2 ve grup 4 kalplere deney esnasında 30 dakika boyunca 15 mmol/lt quercetin infüzyonu uygulandı. Hemodinamik veriler (sistolik basınç, diyastol sonu basınç, dP/dt ve koroner akım miktarları), koroner akım örneklerinden laktat dehidrogenaz, kreatin kinaz-MB, kardiyak troponin I ve miyokardiyal doku örneklerinde oksidatif stres belirleyicileri (malondialdehid, glütatyon, glütatyon reduktase ve nitrit) çalışıldı. Bulgular: Quercetin uygulanan gruplarda reperfüzyon periyodunun her fazında hemodinamik veriler ve biyokimyasal parametreler kontrol grubuna göre belirgin olarak daha iyi miyokardiyal iyileşmeyi işaret etmiştir. Hemodinamik veriler incelendiğinde, akut tedavi edilen kalpler ile kontrol grubu arasındaki fark istatistiksel olarak anlamlı iken (p

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Cite This Article

ERKASAP, N., DERNEK, S., KURAL, T., İKİZLER, M., KAYGISIZ, Z. (2022). İzole sıçan kalplerine uygulanan iskemi/reperfüzyon hasarında quercetinin koruyucu etkisi: Kronik kullanımda artmış antioksidan etkinliği. Anadolu Kardiyoloji Dergisi, Cilt: 7 - Sayı: 4, 404–410. https://ajindex.com/articles/648459

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