Journals / Türk Anestezi ve Reanimasyon Dergisi / 2012 / Cilt: 40 - Sayı: 4

Neuroprotective efficacy of activated protein c in an experimental spinal cord ınjury model in rats

Ratlarda oluşturulan medulla spinalis travma modelinde aktive protein c'nin nöroprotektif etkinliğinin araştırılması

Pages
212–221
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: APC protects neurons and myelinated axons and decreases the glial cell production.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: In this study, we aimed to investigate the neuroprotective effect of intravenous (iv) Activated Protein C (APC) in an experimental spinal cord injury (SCI) model in rats.
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Key Findings & Data:Group L (n:2): Laminectomy was performed.
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Conclusion & Impact:Conclusion: APC protects neurons and myelinated axons and decreases the glial cell production.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: In this study, we aimed to investigate the neuroprotective effect of intravenous (iv) Activated Protein C (APC) in an experimental spinal cord injury (SCI) model in rats. Material and Methods: Thirty two Wistar Albino female rats were included in the study. Before surgery, anesthesia was applied to the rats. Group L (n:2): Laminectomy was performed. Group APC 30 (n:6): iv 100 μg kg-1 APC was injected 30 minutes before SCI. Group SF (n:6): iv 1 mL % 0,9 NaCl was injected just after SCI. Group APC acute (n:6): iv 100 μg kg-1 APC was injected right after SCI. Group APC 6 (n: 6): iv 100 μg kg-1 APC was injected six hours after SCI. Group APC 12 (n:6): iv 100 μg kg-1 APC was injected 12 hours after SCI. Spinal cord injury was induced by applying Yasargil aneurysm clip on dura and spinal cord (Aesculap FE 721 K). Functional recovery was rated by Basso, Beattie, Bresnahan (BBB) locomotive rating scale scores determined at 3., 5., 7., 14., 21., 28., and 35. days. After locomotor activity tests, samples were evaluated histopathologically. Results: We have observed significant recovery on APC group as compared to the SF group at 28. and 35. days based on the results of locomotor activity tests. Significant increase in the number of myelinated axons and neurons on APC groups as compared to the SF group was observed, meanwhile in the SF group we found significant increase in glial cells. Conclusion: APC protects neurons and myelinated axons and decreases the glial cell production.

Özet

Amaç: Bu çalışmada spinal kord travması (SKT) oluşturulan ratlarda, farklı zaman dilimlerinde intravenöz olarak uy- gulanan aktive protein C (APC)nin koruyucu etkisinin araştırılması amaçlanmıştır. Gereç ve Yöntem: Çalışmaya 32 adet Wistar Albino türü dişi rat alındı. Deneklere cerrahi işlem öncesi eter anes- tezisi uygulandı. Grup L (n:2): Laminektomi uygulandı. Grup APC 30 (n:6): İntravenöz 100 μg kg-1 APC verildi ve 30 dk. sonra SKT oluşturuldu. Grup SF (n:6): SKT oluşturulduktan hemen sonra intravenöz 1 mL SF verildi. Grup APC akut (n:6): SKT oluşturulduktan hemen sonra intravenöz 100 μg kg-1 APC verildi. Grup APC 6 (n:6): SKT oluşturulduktan 6 saat sonra intravenöz 100 μg kg-1 APC verildi. Grup APC 12 (n:6): SKT oluşturulduktan 12 saat sonra intravenöz 100 μg kg-1 APC verildi. Spinal kord travması, Yaşargil anevrizma klibi (Aesculap FE 721 K) dura ve spinal kordu çepeçevre saracak şekilde bir dk. süreyle kliplenerek gerçekleştirildi. Tüm deneklerin fonksiyonel iyileşmeleri 1., 3., 5., 7., 14., 21., 28., ve 35. günlerde Basso, Beattie, Bresnahan (BBB) lokomotor skorlama ile değerlendirildi ve 35. gün sonunda histopatoloji için örnekler alındı. Bulgular: Nörodavranışsal testlerin sonuçları karşılaştırıldığında APC uygulanan gruplarda SF grubuna göre 28. ve 35. günlerde anlamlı iyileşme olduğu gözlendi. Histopatolojik olarak yapılan değerlendirmelerde miyelinli akson ve nöron sayısı açısından APC uygulanan gruplarda SF grubuna göre anlamlı yükseklik gözlenirken glia hücresi sayısı açı- sından SF grubunda diğer gruplara göre anlamlı yükseklik bulundu. Sonuç: APCnin uzun dönemde motor fonksiyonlarda düzelme sağladığı, nöron ve miyelinli aksonları koruduğu, glia hücresi oluşumunu azalttığı saptandı.

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Cite This Article

GÖKMEN, N., KUYUMCU, M., ÖÇMEN, E., ARKAN, A., BAĞRIYANIK, A., POLAT, E. (2022). Neuroprotective efficacy of activated protein c in an experimental spinal cord ınjury model in rats. Türk Anestezi ve Reanimasyon Dergisi, Cilt: 40 - Sayı: 4, 212–221. https://ajindex.com/articles/619796

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