Journals / Uluslararası Hematoloji-Onkoloji Dergisi / 2009 / Cilt: 19 - Sayı: 2

Sıçanlarda bir pinealektomi modelinde radyoterapiye bağlı orofaringeal mukozit üzerine melatoninin koruyucu etkisinin histopatolojik olarak değerlendirilmesi

Histopathological evaluation of the effects of melatonin as a protectant against oropharyngeal mucositis ınduced by radiation therapy in a pinealectomy model in rats

Pages
88–94
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Mean overall scores for oropharyngeal mucositis were 6.6 points for Group 1, 6.6 points for Group 2, 5.1 points for Group 3 and 5.8 points for Group 4 (p= 0.15).

📌 3 Key Takeaways

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Objective & Hypothesis:This study presents the histopathological evaluation of the effects of melatonin as a protectant against oropharyngeal mucositis induced by radiation therapy in a pinealectomy model in rats.
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Key Findings & Data:The rats in Group 1 underwent pinealectomy, received melatonin and underwent radiation therapy.
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Conclusion & Impact:Mean overall scores for oropharyngeal mucositis were 6.6 points for Group 1, 6.6 points for Group 2, 5.1 points for Group 3 and 5.8 points for Group 4 (p= 0.15).
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Mukus membran · Pineal bez · Radyasyon hasarı

Abstract

This study presents the histopathological evaluation of the effects of melatonin as a protectant against oropharyngeal mucositis induced by radiation therapy in a pinealectomy model in rats. Thirty-two Wistar rats were divided into four groups. The rats in Group 1 underwent pinealectomy, received melatonin and underwent radiation therapy. The rats in Group 2 underwent pinealectomy, received no melatonin and underwent radiation therapy. The rats in Group 3 underwent sham pinealectomy, received melatonin and underwent radiation therapy. The rats in Group 4 underwent sham pinealectomy, received no melatonin and underwent radiation therapy. The rats underwent euthanasia at six days following radiation therapy. The oropharyngeal tissues were dissected and histopathological evaluation was performed regarding the effects of melatonin as a protectant against oropharyngeal mucositis induced by radiation therapy. Mean item scores for vascular calibration were 2.3 points for Group 1, 2.3 points for Group 2, 1.8 points for Group 3 and 2.1 points for Group 4 (p= 0.44). Mean item scores for vascular permeability were 2.4 points for Group 1, 2.4 points for Group 2, 2.0 points for Group 3 and 2.1 points for Group 4 (p= 0.61). Mean item scores for leukocyte emigration were 2.0 points for Group 1, 2.0 points for Group 2, 1.3 points for Group 3 and 1.6 points for Group 4 (p= 0.02). Mean overall scores for oropharyngeal mucositis were 6.6 points for Group 1, 6.6 points for Group 2, 5.1 points for Group 3 and 5.8 points for Group 4 (p= 0.15). This study elicits the potential effects of melatonin as a protectant against oropharyngeal mucositis induced by radiation therapy.

Özet

Bu çalışmada melatoninin radyoterapi ile uyarılan orofarengeal mukozite karşı bir koruyucu olarak etkilerinin ratlarda bir pinealektomi modelinde histopatolojik değerlendirmesi sunulmaktadır. Otuz iki Wistar türü sıçan dört gruba bölünmüştür. Grup 1’deki sıçanlara pinealektomi uygulanmış, melatonin verilmiş ve radyoterapi uygulanmıştır. Grup 2’deki sıçanlara pinealektomi uygulanmış, melatonin verilmemiş ve radyoterapi uygulanmıştır. Grup 3’teki sıçanlara sahte pinealektomi uygulanmış, melatonin verilmiş ve radyoterapi uygulanmıştır. Grup 4’teki sıçanlara sahte pinealektomi uygulanmış, melatonin verilmemiş ve radyoterapi uygulanmıştır. Radyoterapi uygulamasından 6 gün sonar sıçanlara ötenazi uygulanmıştır. Orofarengeal dokular kesilerek ayrılmış ve melatoninin radyoterapi ile uyarılan orofarengeal mukozite karşı bir koruyucu olarak etkileri açısından histopatolojik değerlendirme yapılmıştır. Ortalama vasküler kalibrasyon skoru Grup 1 için 2.3, Grup 2 için 2.3, Grup 3 için 1.8 ve Grup 4 için 2.1 idi (p= 0.44). Ortalama vasküler permeabilite skoru Grup 1 için 2.4, Grup 2 için 2.4, Grup 3 için 2.0 ve Grup 4 için 2.1 idi (p= 0.61). Ortalama lökosit emigrasyon skoru Grup 1 için 2.0, Grup 2 için 2.0, Grup 3 için 1.3 ve Grup 4 için 1.6 idi (p= 0.02). Orofarengeal mukozit genel skoru Grup 1 için 6.6, Grup 2 için 6.6, Grup 3 için 5.1 ve Grup 4 için 5.8 idi (p= 0.15). Bu çalışma melatoninin radyoterapi ile uyarılan orofarengeal mukozite karşı bir koruyucu olarak potansiyel etkilerini ortaya koymaktadır.

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Cite This Article

ÖZTÜRK, A. S., ERKAL, H. Ş., MEMİŞ, L., ÖZTANIR, N., Ersoy, P. E., AYKOL, Ş., EGEHAN, İ. (2009). Sıçanlarda bir pinealektomi modelinde radyoterapiye bağlı orofaringeal mukozit üzerine melatoninin koruyucu etkisinin histopatolojik olarak değerlendirilmesi. Uluslararası Hematoloji-Onkoloji Dergisi, Cilt: 19 - Sayı: 2, 88–94. https://ajindex.com/articles/322970

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