Levent OKTAR, Metin ALKAN, Ayşegül KÜÇÜK, Faruk METİN COMU, Abdullah ÖZER, Yusuf ÜNAL, Barış MARDİN, Yiğit KILIÇ, Mustafa ARSLAN

Effect of Levosimendan and Nigella Sativa on Erythrocyte Deformability During Myocardial Ischaemia-Reperfusion Injury in Rats

Amaç: İskemi-reperfüzyon (İR) hasarı, doku iskemisi sonucu gerçekleşen bir olaylar zinciridir. Hücresel hasarı takiben reperfüzyon, aktif bir inflamatuar yanıta neden olur. Eritrosit deformabilitesi ve plazma viskozitesi doku ve organ perfüzyonunda kritik bir rol oynar. Bu çalışmada, ratlarda miyokardiyal İR hasarı sırasında levosimendan ve nigella sativa'nın eritrosit deformabilitesi üzerine etkisini araştırmayı amaçladık. Yöntem: Yirmi dört adet Wistar albino rat çalışmaya dahil edildi. Hayvanlar rastgele dört deney grubuna ayrıldı. Grup K'daki (kontrol grubu) ratların koroner arterlerine oklüzyon veya reperfüzyon yapılmadı. Miyokardiyal İR, sol ön inen koroner arterin 30 dakika süreyle bağlanması, ardından İR (İR), İR-levosimendan (24 µg/kg) (İRL) ve İR-nigella sativa (0.2 mL/kg) (İRNS) gruplarında 2 saat reperfüzyon ile gerçekleştirildi. Deformabiliteyi ölçmek için% 5 htc içeren bir PBS tampon çözeltisi ile oluşturulan eritrosit süspansiyonları kullanıldı. Bulgular: Sonuç olarak, kontrol grubuna kıyasla İR, eritrosit deformabilitesinin bir belirteci olan nispi direnci artırdı (p

Ratlarda Miyokardiyal İskemi-Reperfüzyon Hasarı Sırasında Levosimendan ve Nigella Sativa'nın Eritrosit Deformabilitesine Etkisi

Objective: Ischaemia-reperfusion (IR) injury is a chain of events put in place by tissue ischaemia. Reperfusion following the cellular damage causes an active inﬂammatory response. Erythrocyte deformability and plasma viscosity play a critical role in tissue and organ perfusion. In this study we aimed to evaluate the effect of levosimendan and nigella sativa on erythrocyte deformability during myocardial IR injury in rats. Methods: Twenty-four Wistar albino rats were included in the study. The animals were randomly divided into four experimental groups. The coronary arteries of rats in Group C (control group) were not occluded or reperfused. Myocardial IR was performed by ligating the left anterior descending coronary artery for 30 min, followed by 2 h of reperfusion in the IR (IR), IR-levosimendan (24µg/kg) (IRL) group and IR-nigella sativa (0.2 mL/kg) (IRNS) group. Erythrocyte suspensions formed with a PBS buffer solution containing 5% htc were used to measure the deformability. Results: As a result compared to control group, IR increased the relative resistance, a marker of erythrocyte deformability, significantly (p

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