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Zhao X, Guo J, Wang Y, Yi X. High-tannin food enhances spatial memory and scatter-hoarding in rodents via the microbiota-gut-brain axis. MICROBIOME 2024; 12:140. [PMID: 39075602 DOI: 10.1186/s40168-024-01849-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 05/29/2024] [Indexed: 07/31/2024]
Abstract
BACKGROUND The mutually beneficial coevolutionary relationships between rodents and plant seeds have been a theme of research in plant-animal relationships. Seed tannins are important secondary metabolites of plants that regulate the food-hoarding behavior of rodents; however, the underlying molecular mechanisms are not yet clear. In this study, we investigated whether and how seed tannins improve spatial memory and regulate the hoarding behavior of Tamias sibiricus by altering their gut microbiota. RESULTS We showed that acorn tannins not only improved spatial memory but also enhanced scatter-hoarding in T. sibiricus. Changes in the composition and function of the gut microbiota in response to tannins from acorns are closely related to these improvements. Metabonomic analyses revealed the role of gut isovaleric acid and isobutyric acid as well as serum L-tryptophan in mediating the spatial memory of T. sibiricus via the gut microbiota. The hippocampal proteome provides further evidence that the microbiota-gut-brain axis regulates spatial memory and scatter-hoarding in animals. Our study is likely the first to report that plant secondary metabolites improve hippocampal function and spatial memory and ultimately modulate food-hoarding behavior via the microbiota-gut-brain axis. CONCLUSION Our findings may have resolved the long-standing puzzle about the hidden role of plant secondary metabolites in manipulating food-hoarding behavior in rodents via the microbiota-gut-brain axis. Our study is important for better understanding the mutualistic coevolution between plants and animals. Video Abstract.
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Affiliation(s)
- Xiangyu Zhao
- School of Life Sciences, Qufu Normal University, Qufu, 273165, China
| | - Jiawei Guo
- School of Life Sciences, Qufu Normal University, Qufu, 273165, China
- Present address: Huxi Middle School, Dongchangfu District, Liaocheng, 252000, China
| | - Yiming Wang
- School of Life Sciences, Qufu Normal University, Qufu, 273165, China
| | - Xianfeng Yi
- School of Life Sciences, Qufu Normal University, Qufu, 273165, China.
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Zhou H, Chen Z, Li J, Wang R, Bu H, Ruan C. Dietary Supplementation with Nervonic Acid Ameliorates Cerebral Ischemia-Reperfusion Injury by Modulating of Gut Microbiota Composition-Fecal Metabolites Interaction. Mol Nutr Food Res 2024:e2300671. [PMID: 38566522 DOI: 10.1002/mnfr.202300671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/24/2024] [Indexed: 04/04/2024]
Abstract
SCOPE Cerebral ischemia-reperfusion (IR) injury stands as a prominent global contributor to disability and mortality. Nervonic acid (NA), a bioactive elongated monounsaturated fatty acid, holds pivotal significance in human physiological well-being. This research aims to explore the prophylactic effects and fundamental mechanisms of NA in a rat model of cerebral IR injury. METHODS AND RESULTS Through the induction of middle cerebral artery occlusion, this study establishes a rat model of cerebral IR injury and comprehensively assesses the pharmacodynamic impacts of NA pretreatment. This evaluation involves behavioral analyses, histopathological examinations, and quantification of serum markers. Detailed mechanisms of nervonic acid's prophylactic effects are revealed through fecal metabolomics and 16S rRNA sequencing analyses. Our findings robustly support nervonic acid's capacity to ameliorate neurological impairments in rats afflicted with cerebral IR injury. Beyond its neurological benefits, NA demonstrates its potential by rectifying metabolic perturbations across diverse pathways, particularly those pertinent to unsaturated fatty acid metabolism. Additionally, NA emerges as a modulator of gut microbiota composition, notably by selectively enhancing vital genera like Lactobacillus. CONCLUSION These comprehensive findings highlight the potential of incorporating NA as a functional component in dietary interventions aimed at targeting cerebral IR injury.
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Affiliation(s)
- Hui Zhou
- Key Laboratory of Biotechnology and Resource Utilization of Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian, 116600, China
| | - Ziyi Chen
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Jingbin Li
- Key Laboratory of Biotechnology and Resource Utilization of Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian, 116600, China
| | - Rongjin Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Hongshi Bu
- National Center of Mass Spectrometry in Changchun, Jilin Province Key Laboratory of Chinese Medicine Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Chengjiang Ruan
- Key Laboratory of Biotechnology and Resource Utilization of Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian, 116600, China
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Lail H, Mabb AM, Parent MB, Pinheiro F, Wanders D. Effects of Dietary Methionine Restriction on Cognition in Mice. Nutrients 2023; 15:4950. [PMID: 38068808 PMCID: PMC10707861 DOI: 10.3390/nu15234950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Dietary restriction of the essential amino acid, methionine, has been shown to induce unique metabolic protection. The peripheral benefits of methionine restriction (MR) are well established and include improvements in metabolic, energy, inflammatory, and lifespan parameters in preclinical models. These benefits all occur despite MR increasing energy intake, making MR an attractive dietary intervention for the prevention or reversal of many metabolic and chronic conditions. New and emerging evidence suggests that MR also benefits the brain and promotes cognitive health. Despite widespread interest in MR over the past few decades, many findings are limited in scope, and gaps remain in our understanding of its comprehensive effects on the brain and cognition. This review details the current literature investigating the impact of MR on cognition in various mouse models, highlights some of the key mechanisms responsible for its cognitive benefits, and identifies gaps that should be addressed in MR research moving forward. Overall findings indicate that in animal models, MR is associated with protection against obesity-, age-, and Alzheimer's disease-induced impairments in learning and memory that depend on different brain regions, including the prefrontal cortex, amygdala, and hippocampus. These benefits are likely mediated by increases in fibroblast growth factor 21, alterations in methionine metabolism pathways, reductions in neuroinflammation and central oxidative stress, and potentially alterations in the gut microbiome, mitochondrial function, and synaptic plasticity.
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Affiliation(s)
- Hannah Lail
- Department of Nutrition, Georgia State University, 140 Decatur St SE, Atlanta, GA 30303, USA; (H.L.); (F.P.)
- Department of Chemistry, Georgia State University, 100 Piedmont Ave., Atlanta, GA 30303, USA
| | - Angela M. Mabb
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave., Atlanta, GA 30302, USA; (A.M.M.); (M.B.P.)
- Center for Behavioral Neuroscience, Georgia State University, Atlanta, GA 30302, USA
| | - Marise B. Parent
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave., Atlanta, GA 30302, USA; (A.M.M.); (M.B.P.)
- Department of Psychology, Georgia State University, 140 Decatur St SE, Atlanta, GA 30303, USA
| | - Filipe Pinheiro
- Department of Nutrition, Georgia State University, 140 Decatur St SE, Atlanta, GA 30303, USA; (H.L.); (F.P.)
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Desiree Wanders
- Department of Nutrition, Georgia State University, 140 Decatur St SE, Atlanta, GA 30303, USA; (H.L.); (F.P.)
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Yang D, Ye Y, Huang Y, Huang H, Sun J, Wang JS, Tang L, Gao Y, Sun X. Effects of FB1 and HFB1 on Autonomous Exploratory and Spatial Memory and Learning Abilities in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16752-16762. [PMID: 37822021 DOI: 10.1021/acs.jafc.3c05501] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Fumonisin B1 (FB1) is a representative form of fumonisin and is widely present in food and feed. Hydrolyzed fumonisin B1 (HFB1) emerges as a breakdown product of FB1, which is accompanied by FB1 alterations. While previous studies have primarily focused on the liver or kidney toxicity of FB1, with limited studies existing on its neurotoxicity and even fewer on the toxicity of HFB1, this study focuses on the neurotoxicity of FB1 and HFB1 exposure in mice investigated by the open field test, Morris water maze test, histopathological analysis, and nontargeted metabolomics. Further, the levels of oxidative stress-related indices, neurotransmitters, and sphingolipids in the brain were measured to analyze their correlation with behavioral outcomes. The results showed that both FB1 (5 mg/kg) and HFB1 (2.8 mg/kg) reduced autonomous exploratory behavior in mice, impaired spatial learning and memory, and caused mild abnormalities in the brain structure. Quantitative analysis further indicated that exposure to FB1 and HFB1 disrupted neurotransmitter homeostasis, exacerbated oxidative stress, and significantly increased the sphinganine/sphingosine (Sa/So) ratio. Moreover, HFB1 exhibited neurotoxic effects similar to those of FB1, emphasizing the need to pay attention to the neurotoxicity effect of HFB1. These findings underscore the importance of understanding the risks and potential neurological damage associated with FB1 and HFB1 exposure, highlighting the necessity for further research in this crucial field.
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Affiliation(s)
- Diaodiao Yang
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
| | - Yongli Ye
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
| | - Yaoguang Huang
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
| | - Heyang Huang
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
| | - Jiadi Sun
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
| | - Jia-Sheng Wang
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia 30602, United States
| | - Lili Tang
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia 30602, United States
| | - Yahui Gao
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiulan Sun
- School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
- Yixing Institute of Food and Biotechnology Co., Ltd., Yixing 214200, China
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Dietary Methionine Restriction Alleviates Choline-Induced Tri-Methylamine-N-Oxide (TMAO) Elevation by Manipulating Gut Microbiota in Mice. Nutrients 2023; 15:nu15010206. [PMID: 36615863 PMCID: PMC9823801 DOI: 10.3390/nu15010206] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/14/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
Dietary methionine restriction (MR) has been shown to decrease plasma trimethylamine-N-oxide (TMAO) levels in high-fat diet mice; however, the specific mechanism used is unknown. We speculated that the underlying mechanism is related with the gut microbiota, and this study aimed to confirm the hypothesis. In this study, we initially carried out an in vitro fermentation experiment and found that MR could reduce the ability of gut microbiota found in the contents of healthy mice and the feces of healthy humans to produce trimethylamine (TMA). Subsequently, mice were fed a normal diet (CON, 0.20% choline + 0.86% methionine), high-choline diet (H-CHO, 1.20% choline + 0.86% methionine), or high-choline + methionine-restricted diet (H-CHO+MR, 1.20% choline + 0.17% methionine) for 3 months. Our results revealed that MR decreased plasma TMA and TMAO levels in H-CHO-diet-fed mice without changing hepatic FMO3 gene expression and enzyme activity, significantly decreased TMA levels and expression of choline TMA-lyase (CutC) and its activator CutD, and decreased CutC activity in the intestine. Moreover, MR significantly decreased the abundance of TMA-producing bacteria, including Escherichia-Shigella (Proteobacteria phylum) and Anaerococcus (Firmicutes phylum), and significantly increased the abundance of short-chain fatty acid (SCFA)-producing bacteria and SCFA levels. Furthermore, both MR and sodium butyrate supplementation significantly inhibited bacterial growth, down-regulated CutC gene expression levels in TMA-producing bacteria, including Escherichia fergusonii ATCC 35469 and Anaerococcus hydrogenalis DSM 7454 and decreased TMA production from bacterial growth under in vitro anaerobic fermentation conditions. In conclusion, dietary MR alleviates choline-induced TMAO elevation by manipulating gut microbiota in mice and may be a promising approach to reducing circulating TMAO levels and TMAO-induced atherosclerosis.
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