Version 1
: Received: 4 June 2024 / Approved: 5 June 2024 / Online: 5 June 2024 (15:24:15 CEST)
Version 2
: Received: 25 June 2024 / Approved: 25 June 2024 / Online: 26 June 2024 (06:30:49 CEST)
How to cite:
Kuehu, D. L.; Fu, Y.; Nasu, M.; Yang, H.; Khadka, V. S.; Deng, Y. Heat-Induced Oxidative Stress and Use of Astaxanthin on the NF-kB, NFE2L2 Transcription Factors and Cytoprotective Capacity in the Thymus of Broilers. Preprints2024, 2024060313. https://doi.org/10.20944/preprints202406.0313.v2
Kuehu, D. L.; Fu, Y.; Nasu, M.; Yang, H.; Khadka, V. S.; Deng, Y. Heat-Induced Oxidative Stress and Use of Astaxanthin on the NF-kB, NFE2L2 Transcription Factors and Cytoprotective Capacity in the Thymus of Broilers. Preprints 2024, 2024060313. https://doi.org/10.20944/preprints202406.0313.v2
Kuehu, D. L.; Fu, Y.; Nasu, M.; Yang, H.; Khadka, V. S.; Deng, Y. Heat-Induced Oxidative Stress and Use of Astaxanthin on the NF-kB, NFE2L2 Transcription Factors and Cytoprotective Capacity in the Thymus of Broilers. Preprints2024, 2024060313. https://doi.org/10.20944/preprints202406.0313.v2
APA Style
Kuehu, D. L., Fu, Y., Nasu, M., Yang, H., Khadka, V. S., & Deng, Y. (2024). Heat-Induced Oxidative Stress and Use of Astaxanthin on the NF-kB, NFE2L2 Transcription Factors and Cytoprotective Capacity in the Thymus of Broilers. Preprints. https://doi.org/10.20944/preprints202406.0313.v2
Chicago/Turabian Style
Kuehu, D. L., Vedbar S. Khadka and Youping Deng. 2024 "Heat-Induced Oxidative Stress and Use of Astaxanthin on the NF-kB, NFE2L2 Transcription Factors and Cytoprotective Capacity in the Thymus of Broilers" Preprints. https://doi.org/10.20944/preprints202406.0313.v2
Abstract
The thymus, a central lymphoid organ in animals serves as the site for T cell development, differentiation and maturation, vital to adaptive immunity. Thymus is critical for maintaining tissue homeostasis to protect against tumors and tissue damage. Overactive or prolonged immune response can lead to oxidative stress from increased production of reactive oxygen species. Heat stress induces oxidative stress and overwhelms the natural antioxidant defense mechanisms. The study objectives were to investigate the protective properties of astaxanthin against heat-induced oxidative stress and apoptosis in the chicken thymus, by comparing the growth performance and gene signaling pathways among three groups- thermal neutral, heat stress and heat stress with astaxanthin. The thermal neutral temperature conditions were 21-22°C and heat stress temperature was 32-35°C. Both heat stress groups experienced reduced growth performance, while the astaxanthin treated group showed a slightly lesser decline. The inflammatory response and antioxidant defense system were activated by the upregulation of the NF-kB, NFE2L2, PPARα, cytoprotective capacity and apoptotic gene pathways in the heat stress compared to the thermal neutral group. Conversely, expression levels were without significance between the thermal neutral and heat stress with antioxidant groups, suggesting astaxanthin antioxidant effectiveness to mitigate inflammation and oxidative stress damage.
Biology and Life Sciences, Biochemistry and Molecular Biology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
