The Effect of Dexmedetomidine on Oxidative Balance in Lung, Liver and Heart: Rat Sepsis Model
Öz
Aim: Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Early intervention in sepsis is vital and research on the subject continues. Having sedative, analgesic, and anxiolytic properties, Dexmedetomidine (DEX) is a potent lipophilic α2‐adrenoceptor agonist with imidazole structure. In recent years, there has been an increasing number of studies on the organ protective effects of DEX. Unlike other studies, in this project proposal, it was aimed to investigate the effect of DEX applied in different periods of sepsis on the oxidative stress index in the lungs, liver and heart.
Material and methods: The study was approved by the Necmettin Erbakan University Experimental Animals Ethics Committee (2020 – 017). In the study, 50 female wistar albino rats were used as experimental animals. Animals were divided into five groups: 1st group: SHAM (n:10), 2nd group: SEPSIS (n:10), 3rd group: DEX (PreDEX, n:10) applied 30 minutes before cecal ligation puncture (CLP) procedure, group 4: DEX administered 12 hours after CLP (Post12DEX, n:10), group 5: DEX administered 24 hours after CLP (Post24DEX, n:10).
Results: In liver and heart tissues, the decrease in total antioxidant status (TAS) levels in the SEPSIS group was statistically significant compared to the Post12DEX (p <0.001 and p <0.001) and Post24DEX (p =0.007 and p <0.05) groups. In lung, liver and heart tissues, the increase in the oxidative stress index (OSI) levels in the SEPSIS group, compared to the PreDEX (p =0.007, p =0.003, p <0.001) group, was statistically significant.
Conclusion: DEX applied until the 24th hour after CLP for liver tissue contributes positively to reducing the OSI index of DEX applied until the 12th hour for heart tissue, but it contributes to reducing the DEX OSI index applied only before CLP for lung tissue.
Anahtar Kelimeler
Dexmedetomidine, Sepsis, Oxidative stress index, Lung, Liver, Heart.
Kaynakça
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