Lung injury aggravated in Streptozotocin-induced diabetes: an experimental study

Year 2022, Volume: 47 Issue: 1, 175 - 182, 31.03.2022

Demet Bolat , Menekşe Ülger , Münevver Baran , Işıl Tuğçe Turan Arzu Yay

https://doi.org/10.17826/cumj.1020617

Cited By: 1

Abstract

Purpose: The aim of the study explores the impact and potential mechanisms on the STZ (Streptozotocin)-induced diabetes model histopathologically and immunohistochemically on diabetic lung fibrosis.
Materials and Methods: In this study, 14 adult female Wistar albino rats were divided into groups of seven random animals: the control and STZ induced diabetic groups. In the study, a blood glucose level above 200 mg/dl was accepted as diabetes. Nine days after the experiment, the rats were sacrificed under anesthesia and lung samples were taken from each. The histopathological appearance of the samples was evaluated and histopathologic damage score was performed. Apoptosis and inflammation in tissues were evaluated with caspase-3 and IL-1β immunohistochemically.
Results: In the histopathological examination, the STZ group had a higher histopathologic damage score than the control group, and there were findings such as vascular congestion, thickened alveolar wall, and inflammatory cell infiltration. In the caspase-3 immunohistochemistry, staining of the lung tissues of the STZ group was higher than the control group. This difference was also significant in terms of IL-1β immunoreactivity intensity.
Conclusion: This study determined that lung complications and damage due to diabetes-induced by STZ occurred.

Keywords

Diabetes mellitus, lung, streptozotocin, apoptosis

Streptozotosin kaynaklı diyabette akciğer hasarı: deneysel bir çalışma

Abstract

Amaç: Bu çalışmanın amacı, diyabetik akciğer fibrozisi üzerine histopatolojik ve immünohistokimyasal olarak STZ (Streptozotosin) kaynaklı diyabet modeli üzerindeki etki ve potansiyel mekanizmaları araştırmaktır.
Gereç ve Yöntem: Bu çalışmada, 14 yetişkin dişi Wistar albino sıçan, 7 rastgele hayvandan oluşan gruplara ayrıldı: kontrol ve STZ ile indüklenen diyabet grupları. Çalışmada kan şekerinin 200 mg/dl'nin üzerinde olması diyabet olarak kabul edildi. Deneyden dokuz gün sonra sıçanlar anestezi altında sakrifiye edildi ve her birinin akciğer örnekleri alındı. Örneklerin histopatolojik görünümleri değerlendirildi ve histopatolojik hasar skoru yapıldı. Dokulardaki apoptoz ve inflamasyon, immünohistokimyasal olarak kaspaz-3 ve IL-1β ile değerlendirildi.
Bulgular: Histopatolojik incelemede STZ grubunun histopatolojik hasar skoru kontrol grubuna göre daha yüksekti ve damar tıkanıklığı, alveol duvarında kalınlaşma, inflamatuar hücre infiltrasyonu gibi bulgular vardı. Kaspaz-3 immünohistokimyasında, STZ grubunda akciğer dokularının boyanması kontrol grubuna göre daha yüksekti. Bu fark, IL-1β immünreaktivite yoğunluğu açısından da anlamlıydı.
Sonuç: Bu çalışmada STZ'ye bağlı olarak pulmoner komplikasyonların ve diyabete bağlı hasarın oluştuğu belirlendi.

Keywords

Diabetes mellitus, akciğer, streptozotosin, apopitoz

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