Nanocurcumin alleviates inflammation and oxidative stress in LPS-induced mastitis via activation of Nrf2 and suppressing TLR4-mediated NF-κB and HMGB1 signaling pathways in rats.

Autor: Lebda MA; Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt. lebdam1979@alexu.edu.eg., Elmassry IH; Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt., Taha NM; Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt., Elfeky MS; Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2022 Feb; Vol. 29 (6), pp. 8294-8305. Date of Electronic Publication: 2021 Sep 05.
DOI: 10.1007/s11356-021-16309-9
Abstrakt: Coliform mastitis is a worldwide serious disease of the mammary gland. Curcumin is a pleiotropic polyphenol obtained from turmeric, but it is hydrophobic and rapidly eliminated from the body. However, nanoformulation of curcumin significantly improves its pharmacological activity by enhancing its hydrophobicity and oral bioavailability. Our study aimed to investigate the possible antioxidant and anti-inflammatory effects of nanocurcumin as a prophylactic against LPS-induced coliform mastitis in rat model, where LPS was extracted from a field strain of Escherichia coli (bovine mastitis isolate). The study was conducted on twenty lactating Wistar female rats divided into four equal groups, and the mastitis model was initiated by injection of LPS through the duct of the mammary gland. The results showed that nanocurcumin significantly attenuated the lipid peroxidation (MDA), oxidized glutathione, the release of pro-inflammatory cytokines (TNF-α and IL-1β), and the gene expression of TLR4, NF-κB p65, and HMGB1. Meanwhile, it improved the reduced glutathione level and Nrf2 activity and preserved the normal alveolar architecture. These findings suggested that nanocurcumin supplementation can be a promising potential protective approach for coliform mastitis.
(© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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