Journals / Anadolu Kardiyoloji Dergisi / 2013 / Cilt: 13 - Sayı: 1

Yüksek doz tolüenin akut dönemdeki kardiyotoksik etkisi: Deneysel bir çalışma

Acute cardiotoxic effects of high dose toluene: An experimental study

Pages
3–8
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: The present study demonstrated that high doses of toluene cause apoptosis and may lead to impairment of cardiac function in the acute period.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: This study aimed to investigate the acute cardiotoxic effects of high dose toluene and its damage mechanisms on heart tissue in the acute period.
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Key Findings & Data:Methods: Twenty adult male Wistar Albino rats (200-220 g) were used in this controlled experimental animal study.
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Conclusion & Impact:Conclusion: The present study demonstrated that high doses of toluene cause apoptosis and may lead to impairment of cardiac function in the acute period.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: This study aimed to investigate the acute cardiotoxic effects of high dose toluene and its damage mechanisms on heart tissue in the acute period. Methods: Twenty adult male Wistar Albino rats (200-220 g) were used in this controlled experimental animal study. Animals were divided into two equal groups: a control group (Group 1) and a high dose (6 mL/kg/gavage) toluene-administered group (Group 2). Arterial blood pressure (BP) and heart rate (HR) values were measured at 30th, 60th and 90th minutes after toluene was administered. At the end of the experimental period, blood samples and heart tissues were taken from the rats. Serum troponin T levels were assayed. Heart tissue sections were stained using routine histological methods and examined under a light microscope. In addition, the sections were immunohistochemically stained using the avidin-biotin-peroxidase method to determine caspase-3 immunoreactivity and TUNEL to detect apoptosis. To compare the apoptotic index, the Mann-Whitney U test was used. For comparisons between the two groups, the independent t- test was used. In addition, time-based changes of intra-group parameters were evaluated using paired t tests. Results: BP and HR values were low in toluene-treated rats compared to the control group. Troponin T levels were increased in toluene- administered animals as compared with controls [Toluene group: 0.140 (0.010-2.000) ng/mL vs control group: 0.010 (0.010-0.010) ng/mL, p=0.01]. Histopathologic examination of heart tissue sections showed congestion and edema in toluene administrated rats. Higher TUNEL positivity and (+++) immunoreactivity for caspase-3 protein were observed in the toluene group compared to the control group. Conclusion: The present study demonstrated that high doses of toluene cause apoptosis and may lead to impairment of cardiac function in the acute period.

Özet

Amaç: Bu çalışma yüksek doz tolüenin akut dönemde kalp dokusu üzerindeki kardiyotoksik etkilerini ve hasar mekanizmasını araştırmak amacı ile yapıldı. Yöntemler: Bu kontrollü deneysel hayvan çalışmasında 20 adet Wistar Albino cinsi sıçan (200-220 g) kullanıldı. Hayvanlar kontrol (Grup 1) ve yüksek doz tolüen (6 mL/kg/gavaj) verilen grup (Grup 2) olmak üzere iki eşit gruba ayrıldı. Tolüen verildikten sonra 30, 60 ve 90. dakikalarda arteriyel kan basıncı (KB) ve kalp hızı (KH) ölçüldü. Deney periyodunun sonunda hayvanlar öldürülerek kan ve doku örnekleri alındı. Serum troponin T seviyeleri değerlendirildi. Kalp doku örnekleri rutin histolojik yöntemlerle boyanarak ışık mikroskobu altında incelendi. Ayrıca kesitler kaspaz-3 immünreak- tivitesinin değerlendirilmesi için avidin biotin peroksidaz yöntemi ile immünohistokimyasal olarak ve apoptozun tespiti için TUNEL ile boyandı. Apoptotik indeksi karşılaştırmak için Mann-Whitney U testi kullanıldı. İki gruptaki sayısal değerleri karşılaştırmak için bağımsız t- testi kullanıldı. İlave olarak grup içi parametreleri karşılaştırmak için eşleştirilmiş t-testi kullanıldı. Bulgular: Kontrol grubu ile karşılaştırıldığında tolüen verilen hayvanlarda KB ve KH seviyeleri düşüktü. Tolüen verilen hayvanlarda troponin T seviyeleri artmıştı [Kontrol grubu: 0.010 (0.010-0.010) ng/mL ve Tolüen grubu: 0.140 (0.010-2.000) ng/mL, p=0.01]. Tolüen verilen sıçanları kalp doku örneklerinin histopatolojik incelenmesinde konjesyon ve ödem gözlendi. Kontrol grubu ile kıyaslandığında tolüen verilen grupta kaspaz-3 immün- reaktivitesinin (+++) ve TUNEL pozitifliğinin arttığı gözlendi. Sonuç: Bu çalışma sonucunda yüksek doz tolüenin akut dönemde apoptoza ve kardiyak fonksiyonlarda bozulmaya yol açabileceği sonucu çıkarılabilir.

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Cite This Article

ARICI, A., SÖĞÜT, E., KULOĞLU, T., KOÇ, F., EKİCİ, F., ÖZYURT, B., AYAN, M., TAŞ, U. (2022). Yüksek doz tolüenin akut dönemdeki kardiyotoksik etkisi: Deneysel bir çalışma. Anadolu Kardiyoloji Dergisi, Cilt: 13 - Sayı: 1, 3–8. https://ajindex.com/articles/436190

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