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Lan Y, Ma Z, Chang L, Peng J, Zhang M, Sun Q, Qiao R, Hou X, Ding X, Zhang Q, Peng Q, Dong J, Liu X. Sea buckthorn polysaccharide ameliorates high-fat diet induced mice neuroinflammation and synaptic dysfunction via regulating gut dysbiosis. Int J Biol Macromol 2023; 236:123797. [PMID: 36828095 DOI: 10.1016/j.ijbiomac.2023.123797] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 02/04/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023]
Abstract
Currently, definitive treatment for neurodegenerative diseases without side effects has not been developed, therefore, exploring natural polysaccharides with neuroprotection to prevent the occurrences and progressions of cognitive dysfunctions has important significance. The purpose of this study was to investigate the effects of sea buckthorn polysaccharide (SBP) on high-fat diet (HFD) induced mice cognitive dysfunctions and attempted to explore its biological mechanisms. Behavior tests (Y-maze and Barnes maze) suggested that SBP effectively alleviated the HFD induced behavioral disorders, which was in accordance with the inhibition of neuroinflammation via suppressing the NF-κB pathway and amelioration of synaptic dysfunction via upregulating CREB/BDNF/TrkB pathway in mice brain. Furthermore, SBP alleviated the gut barrier impairment, inflammatory responses, and lipopolysaccharide invasion into blood circulation via regulating the gut microbiome structure, especially correcting the reduction of Ileibacterium and increase of Lactobacillus, Dubosiella, Olsenella, Helicobacter, and Ruminiclostridium_9 in HFD mice. Therefore, the reversal effects of SBP on gut dysbiosis might be the important reason for its positive effects on cognitive dysfunction induced by HFD in mice.
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Affiliation(s)
- Ying Lan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhiyuan Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Lili Chang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jing Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mengqi Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qingyang Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Ruixue Qiao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinglin Hou
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xuechao Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qiang Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qiang Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Puredia Limited, Xining, China
| | - Juane Dong
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Lan Y, Wang C, Zhang C, Li P, Zhang J, Ji H, Yu H. Dietary sea buckthorn polysaccharide reduced lipid accumulation, alleviated inflammation and oxidative stress, and normalized imbalance of intestinal microbiota that was induced by high-fat diet in zebrafish Danio rerio. Fish Physiol Biochem 2022; 48:1717-1735. [PMID: 35879492 DOI: 10.1007/s10695-022-01105-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/19/2022] [Indexed: 05/13/2023]
Abstract
The purpose of this study was to explore the beneficial effects of sea buckthorn polysaccharide (SP) on lipid metabolism, liver, and intestinal health in zebrafish fed with high-fat diet (HFD). The zebrafish were fed with regular diet (RD), HFD, and HFD supplemented with 2 g/kg (HFD_2SP) and 4 g/kg (HFD_4SP) of SP, respectively. Growth, serum biochemistry, histopathology, expression of genes involved in lipid metabolism, inflammation, oxidative stress and tight junction, and changes in intestinal microbiota were detected. Results showed that adding 2 and 4 g/kg of SP in the HFD significantly improved the survival rate of zebrafish; reduced the levels of serum triglyceride (TG), total cholesterol (TC), aspartate aminotransferase (AST), and alanine transaminase (ALT); and alleviated the lipid accumulation in the liver of zebrafish. Furthermore, SP significantly enhanced the antioxidant capacity of liver and intestine by up-regulating the expression of Nrf2 and Cu/Zn-SOD and alleviated liver and intestinal inflammation induced by HFD through up-regulating the expression of TGF-β1 and suppressing the expression of P38MAPK, IL-8, and IL-1β. Especially, dietary SP normalized intestinal microbiota imbalance caused by HFD and inhibited the proliferation of harmful bacteria, i.e., Mycobacterium, but promoted the proliferation of intestinal beneficial bacteria, i.e., Cetobacterium. In summary, 2 and 4 g/kg of dietary SP significantly reduced lipid accumulation, alleviated inflammation and oxidative stress, and normalized the imbalance of intestinal microbiota induced by HFD and consequently improved the survival rate of zebrafish.
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Affiliation(s)
- Ying Lan
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
| | - Chi Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Cheng Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Pengju Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Jinding Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Hong Ji
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Haibo Yu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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