Journals / Turkish Journal of Gastroenterology / 2004 / Cilt: 15 - Sayı: 4

Ratlarda oluşturulan deneysel kolit modelinde kalsiyum kanal blokerlerinin etkilerinin karşılaştırılması

The comparative effects of calcium channel blockers in an experimental colitis model in rats

Pages
243–249
DOI
—
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Conclusions: Calcium channel blockage has systemic and local effects on the colitis model.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: In this study two calcium channel blockers (CCB), diltiazem and verapamil, which demonstrate their effects on two different receptor blockage mechanisms, were assessed comparatively in an experimental colitis model regarding the local and systemic effect spectrum.
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Key Findings & Data:Methods: Eighty male Swiss albino rats were divided into eight groups (n:10 each): Group I) colitis was induced with 1 ml 4% acetic acid without any medication.
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Conclusion & Impact:Conclusions: Calcium channel blockage has systemic and local effects on the colitis model.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Kalsiyum kanal blokörleri · Diltiazem · Kolit

Abstract

Background/aims: In this study two calcium channel blockers (CCB), diltiazem and verapamil, which demonstrate their effects on two different receptor blockage mechanisms, were assessed comparatively in an experimental colitis model regarding the local and systemic effect spectrum. Methods: Eighty male Swiss albino rats were divided into eight groups (n:10 each): Group I) colitis was induced with 1 ml 4% acetic acid without any medication. Group II) Sham group. Group III) Intra-muscular (IM) diltiazem was administered daily for five days before inducing colitis. Group IV) IM verapamil was administered daily for five days before inducing colitis. Group V) Transrectal (TR) diltiazem was administered with enema daily for two days before inducing colitis. Group VI) TR saline was administered four hours before inducing colitis. Group VII) TR diltiazem was administered with enema four hours before inducing colitis. Group VIII) TR verapamil was administered with enema four hours before inducing colitis. All subjects were sacrified 48 hours after the colitis induction. The distal colon segment was assessed macroscopically and microscopically for the grade of damage, and myeloperoxidase (MPO) activity was measured. Results: All the data of the control colitis group (group I), including the microscopic, macroscopic and MPO activity measurements, were significantly higher than in the groups in which verapamil and diltiazem were administered over seven days (3.100±0.7379 to 1.300±0.9487 and 1.600±0.9661) (p<0.05). The data of the Sham group, group II, were less than the other groups in which colitis was induced (p<0.05). For the local effect spectrum, after the assessment of groups V-VIII, the control colitis group (group I) and group VI had significantly higher values than the others (3.300±0.4830 to 1.800±0.6325 and 1.700±0.8233 (p<0.05). Conclusions: Calcium channel blockage has systemic and local effects on the colitis model.

Özet

Amaç: Bu çalışmada iki kalsiyum kanal blokerinin ratlarda oluşturulan deneysel kolit modelindeki etkileri lokal ve sistemik teropötik açıdan karşılıklı olarak araştırılmıştır. Yöntem: 80 erkek Swiss albino rat 8 gruba ayrılarak çalışma gerçekleştirilmiştir. 1) Herhangibir medikasyon uygulamaksızın 1 mlt. %4’lük Asetik asit uygulaması ile kolit oluşturulan grup. 2) Sham grubu 3) Kolit oluşturulmadan önce 5 gün sistemik olarak Diltiazem uygulanan grup. 4) Kolit öncesi 5 gün sistemik olarak Verapamil uygulanan grup. 5) Kolit oluşturulmadan önce 2 gün boyunca transrektal (TR) lavman olarak Diltiazem uygulanan grup. 6) Kolit oluşturulmadan 4 saat önce TR salin uygulanan grup. 7) Kolit oluşturulmadan 4 saat önce lavman olarak TR Diltiazem uygulanan grup. 8) Kolit oluşturulmadan 4 saat önce lavman olarak TR Verapamil uygulanan grup. Tüm tedavilere ratların sakrifiye edildiği 48. saate kadar devam edildi. Tüm gruplardaki ratlar asetik asit ile kolit oluşturulduktan 48 saat sonra sakrifiye edilerek distal kolon segmenti makroskopik ve mikroskopik olarak kolon hasarının değerlendirilmesi ve myeloperoksidaz ölçümleri amacıyla incelemeye alındı. Bulgular: Kontrol kolit grubu (Grup 1)’nun tüm değerleri sistemik olarak Diltiazem ve Verapamil uygulanan gruplara göre yüksekti (3,100±0,7379 karşı 1,300±0,9487 ve 1,600±0,9661) (p<0,05). Sham grubunun değerleri kolit oluşturulan tüm gruplara göre düşüktü (p<0,05). Lokal etki spektrumu açısından değerlendirilen grup 5, 6, 7 ve 8 arasında, kontrol grubu oluşturan grup 6 değerleri istatiksel olarak daha yüksek bulundu (3,300±0,4830 karşı 1,800±0,6325 ve 1,700±0,8233) (p<0,05). Sonuç: Kalsiyum kanal blokerlerinin kolit modelinde hem sistemik, hem de lokal olarak olumlu etkileri vardır.

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Cite This Article

ZEYTUNLU, M., KORKUT, M., AKGÜN, E., FIRAT, Ö., AYNACI, M., İÇÖZ, G., KILIÇ, M., ERSİN, M. S., ÖZÜTEMİZ, Ö. (2004). Ratlarda oluşturulan deneysel kolit modelinde kalsiyum kanal blokerlerinin etkilerinin karşılaştırılması. Turkish Journal of Gastroenterology, Cilt: 15 - Sayı: 4, 243–249. https://ajindex.com/articles/410414

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