<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec id="j_jvetres-2019-0040_s_005">
<h3>Introduction</h3>
<p>The aim of the study was to describe the process of neuron death in the cerebral cortex caused by embryonic carbofuran exposure.</p></sec>
<sec id="j_jvetres-2019-0040_s_006">
<h3>Material and Methods</h3>
<p>81 mouse foetuses from 27 breeding mice were used in the study. Carbofuran was administered by gavage from the 6<sup>th</sup> to the 15<sup>th</sup> day of gestation to two groups: one at 0.0208 and the other at 0.0417 mg/kg b.w. On the 17<sup>th</sup> day, the mice were sacrificed and the foetuses were taken to measure the ROS (malondialdehyde/MDA and superoxide dismutase/SOD) activity in brain tissue, the number of apoptotic embryonic cerebral cortex neurons using a TUNEL assay, and necrotic cells using HE staining. Examination of p53 and caspase 3 expression was done by immunohistochemistry. Data were analysed using analysis of variance (ANOVA) and Duncan’s test.</p></sec>
<sec id="j_jvetres-2019-0040_s_007">
<h3>Results</h3>
<p>Increased activity of cerebral ROS characterised by significant elevation of the MDA level (P &lt; 0.05), decreased SOD (P &lt; 0.01), increased p53 and caspase 3 expression, and cerebral cortical neuron death either by necrosis or apoptosis (P &lt; 0.05) were found. At the low dose carbofuran increased expression of p53, caspase 3, and apoptosis. At the high dose it increased levels of MDA and necrosis.</p></sec>
<sec id="j_jvetres-2019-0040_s_008">
<h3>Conclusion</h3>
<p>Increased expression of p53 and caspase 3 and apoptosis indicated that carbofuran may cause apoptosis through the intrinsic pathway. The increased apoptosis grants an opportunity to prevent and treat the effect of ROS due to gestational carbofuran exposure.</p></sec>
</abstract>

Introduction
The aim of the study was to describe the process of neuron death in the cerebral cortex caused by embryonic carbofuran exposure.

Material and Methods
81 mouse foetuses from 27 breeding mice were used in the study. Carbofuran was administered by gavage from the 6th to the 15th day of gestation to two groups: one at 0.0208 and the other at 0.0417 mg/kg b.w. On the 17th day, the mice were sacrificed and the foetuses were taken to measure the ROS (malondialdehyde/MDA and superoxide dismutase/SOD) activity in brain tissue, the number of apoptotic embryonic cerebral cortex neurons using a TUNEL assay, and necrotic cells using HE staining. Examination of p53 and caspase 3 expression was done by immunohistochemistry. Data were analysed using analysis of variance (ANOVA) and Duncan’s test.

Results
Increased activity of cerebral ROS characterised by significant elevation of the MDA level (P < 0.05), decreased SOD (P < 0.01), increased p53 and caspase 3 expression, and cerebral cortical neuron death either by necrosis or apoptosis (P < 0.05) were found. At the low dose carbofuran increased expression of p53, caspase 3, and apoptosis. At the high dose it increased levels of MDA and necrosis.

Conclusion
Increased expression of p53 and caspase 3 and apoptosis indicated that carbofuran may cause apoptosis through the intrinsic pathway. The increased apoptosis grants an opportunity to prevent and treat the effect of ROS due to gestational carbofuran exposure.

Mouse <italic>(Mus musculus)</italic> embryonic cerebral cortex cell death caused by carbofuran insecticide exposure

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mouse  embryonic cerebral cortex cell death caused by carbofuran insecticide exposure

Introduction
The aim of the study was to describe the process of neuron death in the cerebral cortex caused by embryonic carbofuran exposure.

Material and...

Mouse (Mus musculus) embryonic cerebral cortex cell death caused by carbofuran insecticide exposure

Publié en ligne: 13 sept. 2019

Pages: 413 - 421

Reçu: 21 déc. 2018

Accepté: 02 juil. 2019

DOI: https://doi.org/10.2478/jvetres-2019-0040

Mots clés
mice, carbofuran, ROS, necrosis, apoptosis

© 2019 E.M. Luqman et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mouse (Mus musculus) embryonic cerebral cortex cell death caused by carbofuran insecticide exposure

Publié en ligne: 13 sept. 2019

Pages: 413 - 421

Reçu: 21 déc. 2018

Accepté: 02 juil. 2019

DOI: https://doi.org/10.2478/jvetres-2019-0040

Mots clésmice, carbofuran, ROS, necrosis, apoptosis

© 2019 E.M. Luqman et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
mice, carbofuran, ROS, necrosis, apoptosis