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Du L, Zheng Y, Yang YH, Huang YJ, Hao YM, Chen C, Wang BZ, Guo X, Wu H, Su GH. Krill oil prevents lipopolysaccharide-evoked acute liver injury in mice through inhibition of oxidative stress and inflammation. Food Funct 2022; 13:3853-3864. [PMID: 35274650 DOI: 10.1039/d1fo04136c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acute liver injury is a life-threatening syndrome that often results from the actions of viruses, drugs and toxins. Herein, the protective effect and potential mechanism of krill oil (KO), a novel natural product rich in long-chain n-3 polyunsaturated fatty acids bound to phospholipids and astaxanthin, on lipopolysaccharide (LPS)-evoked acute liver injury in mice were investigated. Male C57BL/6J mice were administered intragastrically with 400 mg kg-1 KO or fish oil (FO) once per day for 28 consecutive days prior to LPS exposure (10 mg kg-1, intraperitoneally injected). The results revealed that KO pretreatment significantly ameliorated LPS-evoked hepatic dysfunction indicated by reduced serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities and attenuated hepatic histopathological damage. KO pretreatment also mitigated LPS-induced hepatic oxidative stress, as evidenced by decreased malondialdehyde (MDA) contents, elevated glutathione (GSH) levels, and elevated catalase (CAT) and superoxide dismutase (SOD) activities. Additionally, LPS-evoked overproduction of pro-inflammatory mediators in serum and the liver was inhibited by KO pretreatment. Furthermore, KO pretreatment suppressed LPS-induced activation of the hepatic toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB)/NOD-like receptor family pyrin domain containing 3 (NLRP3) signaling pathway. Interestingly, the hepatoprotective effect of KO was superior to that of FO. Collectively, the current findings suggest that KO protects against LPS-evoked acute liver injury via inhibition of oxidative stress and inflammation.
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Affiliation(s)
- Lei Du
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, No.105 Jiefang Road, Jinan, Shandong, 250013, China. .,Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Yan Zheng
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, No.105 Jiefang Road, Jinan, Shandong, 250013, China.
| | - Yu-Hong Yang
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No.3501 Daxue Road, Jinan, Shandong, 250353, China
| | - Yu-Jie Huang
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Yi-Ming Hao
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Chen Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Bao-Zhen Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Xin Guo
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, No.105 Jiefang Road, Jinan, Shandong, 250013, China. .,Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Hao Wu
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, No.105 Jiefang Road, Jinan, Shandong, 250013, China. .,Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, No.44 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Guo-Hai Su
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, No.105 Jiefang Road, Jinan, Shandong, 250013, China.
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