Effects of nano-selenium on the histopathological changes and gene expression of rainbow trout (Oncorhynchus mykiss) spleen under heat stress. (PubMed, Fish Physiol Biochem)
After heat stress, the addition of 5 mg/kg of nano-selenium significantly increased the expression levels of spleen heat shock protein genes, such as HSP10, HSP47, HSP70, HSP90, antioxidant-related genes, such as glutathione peroxidase (GPx), thioredoxin reductase (Trx), superoxide dismutase (SOD1), catalase (CAT) and immune-related genes, such as tumor necrosis factor-α (TNF-α), Interleukin-1β (IL-1β), Immunoglobulin M (IgM), Complement Component 3 (C3), resulting in the improvement of antioxidant capacity and immunity, and the protection of the spleen to alleviate the damages caused by heat stress. This study provides a theoretical basis for the development of anti-heat stress feeds for rainbow trout.