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

<sec id="j_jvetres-2021-0027_s_005">
<h3>Introduction</h3>
<p>Canine brachycephalic obstructive airway syndrome (BOAS) is a conformation-related respiratory disorder of dog breeds having congenitally flattened facial and skull anatomy. The aim of the study was to determine oxidative stress parameters, the lipid peroxidation product malondialdehyde, and antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase in BOAS patients before and after surgical treatment and in healthy brachycephalic dogs.</p>
</sec>
<sec id="j_jvetres-2021-0027_s_006">
<h3>Material and Methods</h3>
<p>Nine healthy brachycephalic dogs that had not undergone surgery and 39 BOAS patients were included in the study. The BOAS patients were classified as grade 1 (5/34), grade 2 (16/34), and grade 3 (13/34) based on the decrease in the radius of the airway in the larynx. In BOAS patients, oxidative stress parameters were determined before and two weeks after surgery, while in control dogs, blood samples were collected only on inclusion to the study.</p>
</sec>
<sec id="j_jvetres-2021-0027_s_007">
<h3>Results</h3>
<p>All BOAS patients showed various degrees of improvement in clinical signs after surgery. Significantly lower (P &lt; 0.05) SOD activity was found in grade 2 and 3 BOAS patients than in grade 1 patients. Two weeks after surgery, a significant (P &lt; 0.05) increase in SOD activity in grade 2 and 3 patients was observed.</p>
</sec>
<sec id="j_jvetres-2021-0027_s_008">
<h3>Conclusion</h3>
<p>Antioxidant enzyme SOD may play an important role in BOAS and can be used as a biomarker of antioxidant status assessment in BOAS patients.</p>
</sec>
</abstract>

Introduction
Canine brachycephalic obstructive airway syndrome (BOAS) is a conformation-related respiratory disorder of dog breeds having congenitally flattened facial and skull anatomy. The aim of the study was to determine oxidative stress parameters, the lipid peroxidation product malondialdehyde, and antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase in BOAS patients before and after surgical treatment and in healthy brachycephalic dogs.


Material and Methods
Nine healthy brachycephalic dogs that had not undergone surgery and 39 BOAS patients were included in the study. The BOAS patients were classified as grade 1 (5/34), grade 2 (16/34), and grade 3 (13/34) based on the decrease in the radius of the airway in the larynx. In BOAS patients, oxidative stress parameters were determined before and two weeks after surgery, while in control dogs, blood samples were collected only on inclusion to the study.


Results
All BOAS patients showed various degrees of improvement in clinical signs after surgery. Significantly lower (P < 0.05) SOD activity was found in grade 2 and 3 BOAS patients than in grade 1 patients. Two weeks after surgery, a significant (P < 0.05) increase in SOD activity in grade 2 and 3 patients was observed.


Conclusion
Antioxidant enzyme SOD may play an important role in BOAS and can be used as a biomarker of antioxidant status assessment in BOAS patients.

Evaluation of oxidative stress parameters in dogs with brachycephalic obstructive airway syndrome before and after surgery

Journal of Veterinary Research

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

Introduction
Canine brachycephalic obstructive airway syndrome (BOAS) is a conformation-related respiratory disorder of dog breeds having congenitally...

Evaluation of oxidative stress parameters in dogs with brachycephalic obstructive airway syndrome before and after surgery

Publicado en línea: 22 may 2021

Páginas: 201 - 208

Recibido: 30 sept 2020

Aceptado: 07 may 2021

DOI: https://doi.org/10.2478/jvetres-2021-0027

Palabras clave
brachycephalic obstructive airway syndrome, malondialdehyde, superoxide dismutase, glutathione peroxidase, oral surgery

© 2021 V. Erjavec et al. published by Sciendo

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

Evaluation of oxidative stress parameters in dogs with brachycephalic obstructive airway syndrome before and after surgery

Publicado en línea: 22 may 2021

Páginas: 201 - 208

Recibido: 30 sept 2020

Aceptado: 07 may 2021

DOI: https://doi.org/10.2478/jvetres-2021-0027

Palabras clavebrachycephalic obstructive airway syndrome, malondialdehyde, superoxide dismutase, glutathione peroxidase, oral surgery

© 2021 V. Erjavec et al. published by Sciendo

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

Palabras clave
brachycephalic obstructive airway syndrome, malondialdehyde, superoxide dismutase, glutathione peroxidase, oral surgery