Journals / Turkish Journal of Fisheries and Aquatic Sciences / 2014 / Cilt: 14 - Sayı: 3

Karbosulfanın Gökkuşağı Alabalığının (Oncorhynchus mykiss) Eritrosit ve Karaciğer Asetilkolinesteraz (AChE) Enzim Aktivitesine Etkisi

Response of Acetylcholinesterase (AChE) in the Erythrocyte and Liver of Rainbow Trout Exposed to Carbosulfan

Pages
643–650
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

Results indicate that the erythrocyte AChE activity is more sensitive to carbosulfan exposure than that of liver AChE.

📌 3 Key Takeaways

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Objective & Hypothesis:Present study was conducted to determine the effects of long term carbosulfan exposure on erythrocyte and liver acetylcholinesterase (AChE) activity in rainbow trout (Oncorhynchus mykiss), and to assess sensitive tissue to carbosulfan in terms of AChE activity.
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Key Findings & Data:For these purpose, fish were allowed to recover in toxicant-free water for 24 days after 60 days of exposure.
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Conclusion & Impact:Results indicate that the erythrocyte AChE activity is more sensitive to carbosulfan exposure than that of liver AChE.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Present study was conducted to determine the effects of long term carbosulfan exposure on erythrocyte and liver acetylcholinesterase (AChE) activity in rainbow trout (Oncorhynchus mykiss), and to assess sensitive tissue to carbosulfan in terms of AChE activity. For these purpose, fish were allowed to recover in toxicant-free water for 24 days after 60 days of exposure. AChE activity was determined spectrophotometrically using acetylthiocholine iodide as substrate in the erythrocyte and liver. Erythrocyte and liver AChE of carbosulfan-exposed fish showed considerable inhibition rate. A higher degree of enzyme inhibition was observed in the erythrocyte when compared with liver. The degree of enzyme inhibition had a positive correlation with the time of exposure. Erythrocyte and liver AChE activities were recovered after 18 d and 21 d, respectively. Results indicate that the erythrocyte AChE activity is more sensitive to carbosulfan exposure than that of liver AChE. The greater sensitivity of the erythrocyte AChE suggests that it may be more useful as a biomarker of carbosulfan exposure or contamination.

Özet

Karbosulfanın kronik toksik etkisine maruz bırakılan gökkuşağı alabalığının (Oncorhynchus mykiss) eritrosit ve karaciğer asetilkolinesteraz (AChE) enzim aktivitelerindeki değişim ve enzim aktivitelerinin karbosulfana karşı hassasiyetleri araştırılmıştır. Kronik toksik test (60 gün) sonrası, balıkların enzim aktivitelerindeki normalleşmeyi belirlemek için balıklar 24 gün boyunca toksik madde içermeyen akarsuda tutulmuştur. Eritrosit ve karaciğer AChE aktivitesi, asetiltiyokolin iyotun substrat olarak kullanıldığı spektrofotometrik yöntemle ölçülmüştür. Karaciğerle karşılaştırıldığında, eritrosit AChE aktivitesinin inhibisyon oranının daha yüksek olduğu tespit edilmiştir. Maruz kalma süresiyle enzim aktivitesinin inhibisyon oranı arasında pozitif bir korelasyon olduğu belirlenmiştir. Eritrosit ve karaciğer AChE aktivitelerinin normalleşme süresi sırasıyla 18 ve 21 gün olarak belirlenmiştir. Eritrosit AChE aktivitesinin karbosulfana karşı daha hassas olmasından dolayı, bu aktivitenin sucul ekosistemdeki karbosulfan yada diğer kirleticilerin takibinde biyomarker olarak kullanılması daha uygun olabilir.

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Cite This Article

ÇAPKIN, E., BORAN, H., ALTİNOK, İ. (2014). Karbosulfanın Gökkuşağı Alabalığının (Oncorhynchus mykiss) Eritrosit ve Karaciğer Asetilkolinesteraz (AChE) Enzim Aktivitesine Etkisi. Turkish Journal of Fisheries and Aquatic Sciences, Cilt: 14 - Sayı: 3, 643–650. https://ajindex.com/articles/407826

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