DİMETOAT’IN SIÇAN AKCİĞERİNE OLAN HİSTOPATOLOJİK ETKİSİ VE LAUROCERASUS OFFICINALIS ROEM. (KARAYEMİŞ)MEYVESİNİN KORUYUCU ROLÜ

Yıl 2017, Cilt: 26 Sayı: 3, 211 - 215, 01.12.2017

Ayşe Eken Burcu Ünlü Endirlik Elçin Bakır Arzu Hanım Yay Ayşe Baldemir

Öz

Dimethoate is one of the most important and widely
used organophosphate insecticides on a large number
of crops against several pests. The aim of this study was
to evaluate the subchronic toxicity of orally administered dimethoate in Wistar albino rat and the ameliorative effect of cherry laurel fruit extract or vitamin C as
control, based on the histopathological findings in the
lung tissue. For this purpose, animals were divided randomly into six groups of ten rats each and were treated
daily by oral gavage for 60 days. Histopathological alterations in the lung tissue section were determined
using a light microscope. Dimethoate exposure exhibited severe histopathological changes in the lung sections compared with control group rats. The morphology of the lung seemed to be mostly affected by dimethoate treatment leading to degenerative changes.
An increased hemorrhage within the alveoli, necrosis
and alveolar edema as well as an infiltration of inflammatory leukocyte were observed. However, pre- and
post-treatment with cherry laurel fruit extract or pretreatment with vitamin C to dimethoate administered
rats showed an amelioration in the lung injury. In conclusion, treatment with cherry laurel fruit extract or
vitamin C may protect against lung toxicity induced by
dimethoate exposure

Anahtar Kelimeler

Toxicity, dimethoate, lung, histopathology, cherry laurel fruit.

HISTOPATHOLOGICAL EFFECT OF DIMETHOATE ON LUNG OF RAT AND THE PROTECTIVE ROLE OF LAUROCERASUS OFFICINALIS ROEM. (CHERRY LAUREL)FRUIT

Öz

Dimetoat, çok sayıda mahsul üzerinde bulunan birçok
zararlıya karşı en önemli ve yaygın kullanılan
organofosfatlı insektisitlerden biridir. Bu çalışmanın
amacı, Wistar albino sıçanlarına oral olarak uygulanan
dimetoatın subkronik toksisitesini ve taflan meyve ekstresinin veya kontrol olarak vitamin C'nin akciğer dokusundaki histopatolojik bulgulara dayalı iyileştirici etkisini değerlendirmektir. Bu amaçla, hayvanlar rastgele
her biri on sıçandan oluşan altı gruba ayrıldı ve 60 gün
boyunca her gün oral gavaj ile muamele edildi. Akciğer
dokusu kesitindeki histopatolojik değişiklikler ışık mikroskop kullanılarak belirlendi. Dimetoat maruziyeti,
kontrol grubu sıçanlara kıyasla akciğer bölümlerinde
ciddi histopatolojik değişiklikler gösterdi. Akciğerin
morfolojisinin çoğunlukla dejeneratif değişikliklere yol
açan dimetoat muamelesi ile etkilendiği görüldü. Alveolde artmış kanama, nekroz ve alveolar ödem ile
inflamatuvar lökosit infiltrasyonu gözlendi. Bununla
birlikte, dimetoat uygulanan sıçanlara taflan meyve
ekstresinin ön- ve sonraki muamelesi veya vitamin
C’nin ön muamelesi akciğer hasarında bir iyileşme gösterdi. Sonuç olarak, taflan meyve ekstresi veya vitamin
C muamelesi, dimetoat toksisitesinin indüklediği
akciğer toksisitesine karşı koruma sağlayabilir.

Anahtar Kelimeler

Toksisite, dimetoat, akciğer, histopatoloji, taflan meyvesi.

Kaynakça

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