Evaluation of the cytoprotective effects of thymoquinone on isoproterenol-induced rat aorta

Purpose: The aim of this study was to evaluate histologically and immunohistochemically the cytoprotective effects of thymoquinone (THQ) against isoproterenol (ISO)-induced aortic tissue damage. Materials and Methods: Rats were divided into four groups (n=8). Control group (Control); were untreated rats, Thymoquinone group (THQ); 20 mg / kg intragastrically (ig) THQ at 24 hour intervals for 8 days, Isoproterenol group (ISO); on the 7th and 8th day of the experiment, 100 mg/kg subcutaneous (sc) ISO (dissolved in 1 ml sterile distilled water) was given at 24 hour intervals. Thymoquinone + Isoproterenol group (THQ+ISO); THQ was administered ig at 20 mg/kg for 8 days, and 100 mg/kg ISO was administered on day 7 and day 8 of the experiment. Aortic tissues and blood were collected from rats. Tissues were stained by hematoxylin-eosin and immunohistochemically by interleukin-6 (IL-6) and interleukin-17 (IL-17). TNF-α, ELISA was examined in blood sera. Results: Aortic wall thickness was found to be increased in the ISO group compared to the control and THQ groups. In addition, IL-6 and IL-17 immunoreactivity increased in this group. IL-17 height was statistically significant. THQ corrected both the increase in wall thickness and the expression levels of IL-6 and IL-17. TNF-α was found to be decreased in the ISO group, but no statistically significant difference was observed between the groups. Conclusion: THQ serves as a cytoprotective agent Amaç: Çalışmada isoproterenol (ISO) kaynaklı aort doku hasarına karşı timokinonun (THQ) sitoprotektif etkilerinin histolojik ve immunohistokimyasal olarak değerlendirilmesi amaçlanmıştır Gereç ve Yöntem: Sıçanlar dört gruba ayrıldı. (n=8). Kontrol grubu (Kontrol); tedavi uygulanmadı, Timokinon grubu (THQ); 20 mg / kg intragastrik (ig) 8 gün boyunca 24 saat aralıklarla THQ, Isoproterenol grubu (ISO); deneyin 7. ve 8. gününde 100 mg / kg subkutan (sc) ISO (1 ml steril distile suda çözüldü) 24 saat aralıklarla uygulandı. Timokinon+Isoproterenol grubu (THQ+ISO); THQ ig 20 mg/kg 8 gün boyunca ve 100 mg/kg ISO deneyin 7. ve 8. gününde uygulandı. Sıçanların aort dokuları ve kanları alındı. Dokular hematoksilen eozin ve immunohistokimayasal olarak interlökin-6 (IL-6) ve interlökin-17 (IL-17) boyandı. TNF-α, kan serumlarında ELISA ile incelendi. Bulgular: ISO grubunda aort duvar kalınlığı kontrol ve THQ grubuna kıyasla arttı. Ayrıca bu grupta IL-6 ve IL-17 immunoreaktivitesi de artış gösterdi. IL-17 istatistiksel olarak anlamlıydı. THQ