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Wang Y, Shi J, Liu K, Wang Y, Xu Y, Liu Y. Metabolomics and gene expression levels reveal the positive effects of teaseed oil on lifespan and aging process in Caenorhabditis elegans. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Guo R, Zhu J, Chen L, Li J, Ding Q, Han Q, Zheng W, Li S. Dietary camellia seed oil attenuates liver injury in mice chronically exposed to alcohol. Front Nutr 2022; 9:1026740. [PMID: 36313120 PMCID: PMC9598421 DOI: 10.3389/fnut.2022.1026740] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Dietary fat composition is closely associated with the pathological development of alcoholic liver disease (ALD). Fat enriched with saturated fatty acids protects whereas with polyunsaturated fatty acids aggravates alcohol-induced liver injury. However, limited study has addressed how monounsaturated fatty acids (MUFAs) determines the pathological process of ALD. Our study was conducted to evaluate the effect of MUFAs-enriched-camellia seed oil (CSO) on alcohol-induced liver injury. The ALD model was established by feeding C57BL/6 mice with Lieber-DeCarli diet, and with either CSO or polyunsaturated fatty acids (PUFAs)-enriched-corn oil (CO) as fat source. After 4-week-intervention, CSO-feed rescued alcohol-induced liver injury compared to CO-feed, evidenced by measurements of plasma ALT activity, H&E stain, and hepatic cleaved-Caspase-3 expression. Besides, CSO-feed alleviated alcohol-induced oxidative stress, associated with NRF2 and Hif-1α expressions improvement. The reduction of F4/80 immunostaining and the decreased expressions of hepatic TNF-α and IL-6 suggested CSO-feed improved alcohol-induced inflammation. The mechanistic analysis showed that the inhibition of ASK1 and MAPKs might contribute to CSO-protected liver injury. Notably, we observed CSO-feed relieved the gut microbiota disturbance with the decreased Firmicutes and Turicibater, and the increased Bacteroidota, Alloprevotella, and Bacteroides, and reduced circulatory endotoxin level and lipolysis of adipose tissue, which are the known pathogenic factors in alcohol-induced liver injury. Unexpectedly, CSO induced more hepatic steatosis than CO-feed. In conclusion, CSO attenuated chronic alcohol consumption-induced liver injury but enhanced hepatic steatosis. CSO could be a potential dietary choice for alcoholic individuals with liver injury.
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Affiliation(s)
- Rui Guo
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China,Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinyan Zhu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lin Chen
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiaomei Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qinchao Ding
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiang Han
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China,Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weijun Zheng
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China,Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, China,*Correspondence: Songtao Li
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Gao J, Ma L, Ma J, Xia S, Gong S, Yin Y, Chen Y. Camellia ( Camellia oleifera Abel.) Seed Oil Regulating of Metabolic Phenotype and Alleviates Dyslipidemia in High Fat-Fed Mice through Serum Branch-Chain Amino Acids. Nutrients 2022; 14:nu14122424. [PMID: 35745155 PMCID: PMC9228151 DOI: 10.3390/nu14122424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023] Open
Abstract
Camellia (Camellia oleifera Abel.) seed oil (CO) has been shown to effectively reduce the blood lipid level of its host due to its fatty acid content, but the specific molecular mechanism associated with the metabolic phenotype after digestion is not clear. Here, we further investigated the relationship between branched-chain amino acids (BCAA) and the metabolic phenotype that may exhibit the anti-dyslipidemia effect of CO on mice fed a high-fat diet for 30 day C57BL/6J male mice were allocated to three groups: the control group (Cont), the high-fat feed group (HFD), and a high-fat feed group with CO treatment (CO). A serum sample was collected to detect lipid biomarkers and BCAA concentration. Notably, Low-density lipoprotein (LDL), Total Cholesterol (TC), and Triglycerides (TG) showed a significant decrease, whereas High-density lipoprotein (HDL) increased in CO mice but not in the HFD group. The concentration of Isoleucine (Ile), leucine (Leu), and valine (Val) was similar between the Cont and CO groups compared with the HFD group, exhibiting an inhibition induced by CO in mice fed with a high-fat diet. A metabolic phenotype from serum examined by non-targeted metabolite analysis using UHPLC/MS showed most metabolites exhibited lipid and BCAA metabolism. The results indicated that CO treatment notably regulated the metabolism of arachidonic acid and steroid biosynthesis in response to HFD-induced dyslipidemia. In addition, the expression of PPARγ genes that correlated with the BCAA and serum lipid biomarkers were compared, and significant inhibition was noticed, which might lead to the potential exposure of the anti-dyslipidemia mechanism of CO in HFD-fed mice. In conclusion, the expression of PPARγ genes, serum lipid level, BCAA concentration, and the metabolic phenotype was significantly positive in correlation with a high-fat diet, whereas oral CO improved the biomarkers and metabolism of some specific serum metabolites in HFD-fed mice.
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Affiliation(s)
- Jing Gao
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Li Ma
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
| | - Jie Ma
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Siting Xia
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Saiming Gong
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Yulong Yin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
- Correspondence: (Y.Y.); (Y.C.)
| | - Yongzhong Chen
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
- Correspondence: (Y.Y.); (Y.C.)
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