Journals / Uluslararası Hematoloji-Onkoloji Dergisi / 2010 / Cilt: 20 - Sayı: 4

Dissemine intravasküler koagülasyon geliştirilen tavşanlarda adrenomedullin düzeyleri ve tedavi etkinliği

Level and effect of adrenomedullin on endotoxin induced disseminated intravascular coagulation model in rabbits

Pages
220–228
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, ADM levels were found elevated during the progress of endotoxin induced DIC model.

📌 3 Key Takeaways

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Objective & Hypothesis:Adrenomedullin (ADM) is a regulatory peptide having a variety of pharmacological properties secreted from vascular endothelial cells and adrenal medulla.
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Key Findings & Data:Then the effect of standard dose heparin and 0.05μg/kg/min ADM infusion were evaluated.
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Conclusion & Impact:In conclusion, ADM levels were found elevated during the progress of endotoxin induced DIC model.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Adrenomedullin (ADM) is a regulatory peptide having a variety of pharmacological properties secreted from vascular endothelial cells and adrenal medulla. There are only a few studies about the effects of ADM on coagulation and platelets which is secreted from endothelial cells. The aim of this study is to assay ADM levels in rabbits with endotoxin induced disseminated intravascular coagulation (DIC) model and to investigate the probable effects of ADM on coagulation parameters in this model. Four groups (Control, DIC, Heparin, ADM) each consisting of eight New Zeland rabbits were formed randomly. A DIC model was developed by infusion of endotoxin from Escherichia coli. Then the effect of standard dose heparin and 0.05μg/kg/min ADM infusion were evaluated. Administration of endotoxin resulted in severe changes of coagulation parameters as shown by the significant prolongation of the prothrombin time and activated partial thromboplastin time, decrease in platelet count, plasma fibrinogen level, antithrombin, and protein C activity. These results were in accordance with DIC findings and were significantly different from baseline and control group. In DIC group, the baseline, second, and sixth hour mean ADM levels were 7.09±1.63, 8.10±1.55, 9.35±0.76 ng/dl, respectively. ADM levels on sixth hour were significantly higher than baseline and control group. Heparin and ADM were used in the DIC model but both of them were not effective. In conclusion, ADM levels were found elevated during the progress of endotoxin induced DIC model. ADM were not effective in overt DIC model but it might be useful in the early phase of the DIC.

Özet

Adrenomedullin (ADM) 52 aminoasitten oluşan, adrenal medulla ve endotel başta olmak üzere pek çok organdan salgılanan bir peptiddir. Endotelden salgılanan bir peptid olarak ADM’nin koagülasyon üzerine etkileri çok az çalışmada incelenmiştir. Dissemine intravasküler koagülasyon (DİK) patofizyolojisindeki rolü ise bilinmemektedir. Bu çalışmanın amacı DİK geliştirilen tavşanlarda ADM düzeylerini belirlemek ve ADM’i tedavide kullanarak koagülasyon sistemi üzerine olası etkilerini araştırmaktır. Çalışma için her biri 8 erkek Yeni Zelanda tavşanından oluşan 4 grup (Kontrol, DİK, Heparin ve ADM) oluşturuldu. DİK grubunda E. Coli endotoksini infüzyon şeklinde verilerek standart bir DİK modeli geliştirildi. Bu modelde standart dozda heparin infüzyonu ile 0.05 μg/kg/dk dozunda ADM infüzyonu yapılarak tedavi sonuçları karşılaştırıldı. DİK geliştirilen tavşanlarda altıncı saat sonunda ortalama protrombin zamanı (PT) ve parsiyel tromboplastin zamanı (aPTT) değerlerinde belirgin uzama ile ortalama platelet sayısı, fibrinojen düzeyi, antitrombin (AT) ve protein C aktivitesinde belirgin düşme izlendi. Bu sonuçlar DİK bulguları ile uyumlu, kontrol grubu ve başlangıç değerleri ile karşılaştırıldığında anlamlı farklılık tespit edildi. DİK grubunda başlangıç, ikinci ve altıncı saat ortalama ADM değerleri sırası ile 7.09±1.63, 8.10±1.55, 9.35± 0.76 ng/dl olup kontrol grubuna ve başlangıç değerlerine göre altıncı saat ADM değerleri istatistiksel olarak anlamlı yüksek bulundu. Heparin ve ADM bu DİK modelinde tedavide denendi ancak ikisi de etkili bulunmadı. Sonuç olarak, DİK geliştirilen tavşanlarda ADM değerlerinin yükseldiği tespit edildi. ADM aşikar DİK tedavisinde etkili bulunmadı. Ancak erken fazlarda etkili olabileceği düşünülebilir.

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Cite This Article

KARAKÜKCÜ, M., PATIROĞLU, T., KARAKÜKCÜ, Ç., TORUN, Y. A., ÖZDEMİR, M. A. (2010). Dissemine intravasküler koagülasyon geliştirilen tavşanlarda adrenomedullin düzeyleri ve tedavi etkinliği. Uluslararası Hematoloji-Onkoloji Dergisi, Cilt: 20 - Sayı: 4, 220–228. https://ajindex.com/articles/322965

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