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Manokasemsan W, Jariyasopit N, Poungsombat P, Kaewnarin K, Wanichthanarak K, Kurilung A, Duangkumpha K, Limjiasahapong S, Pomyen Y, Chaiteerakij R, Tansawat R, Srisawat C, Sirivatanauksorn Y, Sirivatanauksorn V, Khoomrung S. Quantifying fecal and plasma short-chain fatty acids in healthy Thai individuals. Comput Struct Biotechnol J 2024; 23:2163-2172. [PMID: 38827233 PMCID: PMC11141283 DOI: 10.1016/j.csbj.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/06/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
Short-chain fatty acids (SCFAs) are involved in important physiological processes such as gut health and immune response, and changes in SCFA levels can be indicative of disease. Despite the importance of SCFAs in human health and disease, reference values for fecal and plasma SCFA concentrations in healthy individuals are scarce. To address this gap in current knowledge, we developed a simple and reliable derivatization-free GC-TOFMS method for quantifying fecal and plasma SCFAs in healthy individuals. We targeted six linear- and seven branched-SCFAs, obtaining method recoveries of 73-88% and 83-134% in fecal and plasma matrices, respectively. The developed methods are simpler, faster, and more sensitive than previously published methods and are well suited for large-scale studies. Analysis of samples from 157 medically confirmed healthy individuals showed that the total SCFAs in the feces and plasma were 34.1 ± 15.3 µmol/g and 60.0 ± 45.9 µM, respectively. In fecal samples, acetic acid (Ace), propionic acid (Pro), and butanoic acid (But) were all significant, collectively accounting for 89% of the total SCFAs, whereas the only major SCFA in plasma samples was Ace, constituting of 93% of the total plasma SCFAs. There were no statistically significant differences in the total fecal and plasma SCFA concentrations between sexes or among age groups. The data revealed, however, a positive correlation for several nutrients, such as carbohydrate, fat, iron from vegetables, and water, to most of the targeted SCFAs. This is the first large-scale study to report SCFA reference intervals in the plasma and feces of healthy individuals, and thereby delivers valuable data for microbiome, metabolomics, and biomarker research.
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Affiliation(s)
- Weerawan Manokasemsan
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Narumol Jariyasopit
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Patcha Poungsombat
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Khwanta Kaewnarin
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- SingHealth Duke-NUS Institute of Biodiversity Medicine, National Cancer Centre Singapore, Singapore
| | - Kwanjeera Wanichthanarak
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Alongkorn Kurilung
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kassaporn Duangkumpha
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Suphitcha Limjiasahapong
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Yotsawat Pomyen
- Translational Research Unit, Chulabhorn Research Institute, Bangkok, Thailand
| | - Roongruedee Chaiteerakij
- Center of Excellence for Innovation and Endoscopy in Gastrointestinal Oncology, Division of Gastroenterology, Department of Medicine, Faculty of Medicine Chulalongkorn University, Chulalongkorn University, Bangkok, Thailand
| | - Rossarin Tansawat
- Thailand Metabolomics Society, Bangkok, Thailand
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Metabolomics for Life Sciences Research Unit, Chulalongkorn University, Chulalongkorn University, Bangkok, Thailand
| | - Chatchawan Srisawat
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Yongyut Sirivatanauksorn
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Vorapan Sirivatanauksorn
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Sakda Khoomrung
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellent in Metabolomics and Systems Biology (SiCORE-MSB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Bangkok, Thailand
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Huang Y, Liu F, Lai J, Jiang S, Tan X, Chen L, Xu Y, Xiong X, Deng Y. The adjuvant treatment role of ω-3 fatty acids by regulating gut microbiota positively in the acne vulgaris. J DERMATOL TREAT 2024; 35:2299107. [PMID: 38164791 DOI: 10.1080/09546634.2023.2299107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/18/2023] [Indexed: 01/03/2024]
Abstract
Objectives:We aimed to explore the potential role of omega-3 (ω-3) fatty acids on acne vulgaris by modulating gut microbiota.Materials and Methods:We randomly divided the untreated acne patients into two groups with or without ω-3 fatty acids intervention for 12 weeks. The Sprague Dawley (SD) rats with acne model were given isotretinoin, ω-3 fatty acids or their combination respectively. Then the colonic contents samples of the drug intervention SD rats were transferred to the pseudo sterile rats with acne model. The severity of the disease was assessed by the Global Acne Grading System (GAGS) score of the patients, and the swelling rate of auricle and the pathological section of the rat with acne model. The 16S rDNA gene sequencing was performed to detect the alteration of the gut microbiota.Results:ω-3 fatty acids could increase the diversity of the gut microbiota and regulate the flora structure positively both in the patients and rats, increase the abundance of butyric acid producing bacteria and GAGS score in the patients, and alleviate the inflammation and comedones of rats.Conclusion:Supplementation of ω-3 fatty acids could alleviate the inflammation of acne vulgaris by increasing the abundance of butyric acid producing bacteria.
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Affiliation(s)
- Yaxin Huang
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Fuming Liu
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jindong Lai
- Department of Dermatology, Suining First People's Hospital, Suining, Sichuan, China
| | - Shiyu Jiang
- Department of Dermatology, Chengdu Fifth People's Hospital, Chengdu, Sichuan, China
| | - Xiaoqi Tan
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Lingna Chen
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yong Xu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, China
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, Sichuan, China
| | - Xia Xiong
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yongqiong Deng
- Department of Dermatology & STD, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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3
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Povolotsky TL, Levy Barazany H, Shacham Y, Kolodkin-Gal I. Bacterial epigenetics and its implication for agriculture, probiotics development, and biotechnology design. Biotechnol Adv 2024; 75:108414. [PMID: 39019123 DOI: 10.1016/j.biotechadv.2024.108414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
In their natural habitats, organisms encounter numerous external stimuli and must be able to sense and adapt to those stimuli to survive. Unlike mutations, epigenetic changes do not alter the underlying DNA sequence. Instead, they create modifications that promote or silence gene expression. Bacillus subtilis has long been a model organism in studying genetics and development. It is beneficial for numerous biotechnological applications where it is included as a probiotic, in fermentation, or in bio-concrete design. This bacterium has also emerged recently as a model organism for studying bacterial epigenetic adaptation. In this review, we examine the evolving knowledge of epigenetic regulation (restriction-modification systems (RM), orphan methyltransferases, and chromosome condensation) in B. subtilis and related bacteria, and utilize it as a case study to test their potential roles and future applications in genetic engineering and microbial biotechnology. Finally, we suggest how the implementation of these fundamental findings promotes the design of synthetic epigenetic memory circuits and their future applications in agriculture, medicine, and biotechnology.
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Affiliation(s)
- Tatyana L Povolotsky
- Institute for Chemistry and Biochemistry, Physical and Theoretical Chemistry, Freie Universität Berlin, Altensteinstraße 23A, 14195 Berlin, Germany
| | - Hilit Levy Barazany
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel
| | - Yosi Shacham
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel
| | - Ilana Kolodkin-Gal
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel.
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Yu YH, Liu F, Li LQ, Jin MY, Yu X, Liu X, Li Y, Li L, Yan JK. Recent advances in dietary polysaccharides from Allium species: Preparation, characterization, and bioactivity. Int J Biol Macromol 2024; 277:134130. [PMID: 39053822 DOI: 10.1016/j.ijbiomac.2024.134130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/20/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Allium plants, including garlic, onions, shallots, and leeks, belong to the Alliaceae family and are utilized as vegetable, medicinal, and ornamental plants. These plants are consumed both raw and cooked and are noted in traditional medicine for their antibacterial, antitumor, and diuretic properties. Allium plants are a rich source of polyphenols, organosulfur compounds, flavonoids, alkaloids, and polysaccharides, which contribute to their health benefits. As consumer interest in the association between diet and health grows, there is an increasing market demand for foods that promote health, particularly those rich in dietary fiber or non-starch polysaccharides. Allium polysaccharides (APS) have molecular weights of 1 × 103-1 × 106 Da containing small amounts of pectin, glucofructan, or glycoproteins and large amounts of fructans. APS, despite its complex structure, is one of the principal active components of Allium plants but is often overlooked, which restricts its practical application. This paper provides a comprehensive overview of the extraction and purification, structural and functional characteristics, bioactivities, structure-function relationships, and chemical modifications of APS, as well as the effects of APS processing and storage. Additionally, this paper outlines future research directions for APS, which will inform its development and application in the food, pharmaceutical, and cosmetic industries.
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Affiliation(s)
- Ya-Hui Yu
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Fengyuan Liu
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Long-Qing Li
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Ming-Yu Jin
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Xiangying Yu
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China.
| | - Xiaozhen Liu
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Yuting Li
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Lin Li
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Jing-Kun Yan
- Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China.
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5
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Zhao C, Chen G, Huang Y, Zhang Y, Li S, Jiang Z, Peng H, Wang J, Li D, Hou R, Peng C, Wan X, Cai H. Alleviation of fluoride-induced colitis by tea polysaccharides: Insights into the role of Limosilactobacillus vaginalis and butyric acid. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134858. [PMID: 38905983 DOI: 10.1016/j.jhazmat.2024.134858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/23/2024] [Accepted: 06/06/2024] [Indexed: 06/23/2024]
Abstract
Endemic fluorosis has gained increasing attention as a public health concern, and the escalating risk of colitis resulting from excessive fluoride intake calls for effective mitigation strategies. This study aimed to investigate the potential mechanisms underlying the alleviation of fluoride-induced colitis by Tea polysaccharides (TPS). Under conditions of excessive fluoride intake, significant changes were observed in the gut microbiota of rats, leading to aggravated colitis. However, the intervention of TPS exerted a notable alleviating effect on colitis symptoms. Antibiotic intervention and fecal microbiota transplantation (FMT) experiments provided evidence that TPS-mediated relief of fluoride-induced colitis is mediated through its effects on the gut microbiota. Furthermore, TPS supplementation was found to modulate the structure of gut microbiota, enhance the relative abundance of Limosilactobacillus vaginalis in the gut microbiota, and promote the expression of short-chain fatty acid (SCFAs) receptors in colonic tissue. Notably, L. vaginalis played a significant role in alleviating fluoride-induced colitis and facilitating the absorption of butyric acid in the rat colon. Subsequent butyric acid intervention experiments confirmed its remarkable alleviating effect on fluoride-induced colitis. Overall, these findings provide a potential preventive strategy for fluoride-induced colitis by TPS intervention, which is mediated by L. vaginalis and butyric acid.
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Affiliation(s)
- Chenjun Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Guijie Chen
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Ying Huang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Yuxuan Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Sichen Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Zhiliang Jiang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Huihui Peng
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Juan Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Daxiang Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Chuanyi Peng
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China.
| | - Huimei Cai
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, PR China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, Anhui, PR China.
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6
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Huang F, Wang Z, Zhang Z, Liu X, Liang Y, Qian J, Tu J, Tang X, Zhang C, Fang B. Comprehensive evaluation of the mechanism of Banxia Baizhu Tianma Decoction in ameliorating posterior circulation ischemia vertigo based on integrating fecal short-chain fatty acids and 16S rRNA sequencing. J Pharm Biomed Anal 2024; 247:116195. [PMID: 38810328 DOI: 10.1016/j.jpba.2024.116195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/21/2024] [Accepted: 05/01/2024] [Indexed: 05/31/2024]
Abstract
Posterior circulation ischemia vertigo (PCIV) is vertebrobasilar insufficiency resulting in vertigo. Banxia Baizhu Tianma Decoction (BBTD) is broadly applied to treat PCIV in China, but its efficacy and detailed mechanism remains unclear. Therefore, this study aims to investigate the effects of BBTD on PCIV, and identify important gut microbiota and its derived short-chain fatty acid (SCFA) changes and the detailed mechanism through 16 S rRNA sequencing with SCFAs profiling. In this study, the model of PCIV was established by surgical ligation of the right subclavian artery (RSCA) and right common carotid artery (RCCA). We found that BBTD administration effectively reduced the volume of cerebral infarction and improved neurologic functions, reduced neuronal apoptosis and neuroinflammatory. Moreover, BBTD significantly modulated the diversity and composition of the gut microbiota, including increasing the relative abundance of Lactobacillus, Prevotella and Akkermansia and decreasing relative abundances of Lachnospiraceae, Bacteroidetes (S24-7) and Ruminococcaceae. BBTD treatment also increased propionate content. Propionate mediates the the recovery of neurological functions and anti-apoptotic effects of BBTD in PCIV rat. Our findings wish to discover the potential mechanism of BBTD treatment on PCIV and promote its clinical application.
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Affiliation(s)
- Fangfang Huang
- College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zilin Wang
- College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zilong Zhang
- Department of Hepatobiliary-Pancreatic and Hernia Surgery, Wuhan Fourth Hospital, Wuhan 430033, China
| | - Xinbang Liu
- College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Yingda Liang
- College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Jingyi Qian
- Department of Pediatric Rehabilitation Medicine, Maternal and Child Health Hospital of HuBei Province, Wuhan, China
| | - Jia Tu
- Department of Neurology, Wuhan Hankou Hospital, Wuhan China
| | - Xuan Tang
- Department of Neurology, Wuhan Hankou Hospital, Wuhan China
| | - Chen Zhang
- Department of Emergency, Hubei Provincial Integrative Chinese and Western Medicine Hospital (Xinhua affiliated hospital, Hubei University of Chinese Medicine), Wuhan 430010, China
| | - Bangjiang Fang
- College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China; Department of Emergency, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai China.
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7
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Tang L, Zhang X, Zhang B, Chen T, Du Z, Song W, Chen W, Wang C. Electroacupuncture remodels gut microbiota and metabolites in mice with perioperative neurocognitive impairment. Exp Gerontol 2024; 194:112507. [PMID: 38971546 DOI: 10.1016/j.exger.2024.112507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/13/2024] [Accepted: 06/30/2024] [Indexed: 07/08/2024]
Abstract
Gut microbiota and metabolites are considered key factors in the pathogenesis of perioperative neurocognitive disorders (PND), and the brain-gut axis may be a promising target for PND treatment. Electroacupuncture has been shown to improve a wide range of neurological disorders and to restore function to the gastrointestinal tract. Thus, we hypothesized whether electroacupuncture could remodel gut microbiota and neuroinflammation induced by anesthesia/surgery. First, we observed electroacupuncture at acupoints GV20, LI4 and PC6 significantly improved memory in behavioral tests. Next, we found electroacupuncture decreased the levels of inflammatory factors (NSE, S-100β, IL-6, etc.) in the hippocampus, indicating that nerve inflammation was blocked by electroacupuncture. Furthermore, via 16S rRNA sequence analysis and LC-MS analysis, the gut microbiota and its metabolites were appropriately restored after electroacupuncture treatment. Additionally, we further confirmed the restorative effect of electroacupuncture on PND by fecal transplantation. In conclusion, the role of electroacupuncture in improving cognitive function and protecting neurons may be related to the modulation of gut microbiota and their metabolite dysregulation, thereby inhibiting neuroinflammation in PND mice.
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Affiliation(s)
- Lu Tang
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China; Key Laboratory of Gansu Provincial Prescription Mining and Innovative Translational Laboratory, Lanzhou 730030, China; Gansu Provincial Traditional Chinese Medicine New Product Creation Engineering Laboratory, Lanzhou 730030, China
| | - Xiaojia Zhang
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China; Key Laboratory of Gansu Provincial Prescription Mining and Innovative Translational Laboratory, Lanzhou 730030, China; Gansu Provincial Traditional Chinese Medicine New Product Creation Engineering Laboratory, Lanzhou 730030, China
| | - Binsen Zhang
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China; Key Laboratory of Gansu Provincial Prescription Mining and Innovative Translational Laboratory, Lanzhou 730030, China; Gansu Provincial Traditional Chinese Medicine New Product Creation Engineering Laboratory, Lanzhou 730030, China
| | - Tianren Chen
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Zhongying Du
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China; Key Laboratory of Gansu Provincial Prescription Mining and Innovative Translational Laboratory, Lanzhou 730030, China; Gansu Provincial Traditional Chinese Medicine New Product Creation Engineering Laboratory, Lanzhou 730030, China
| | - Wenjing Song
- The Fifth Clinical College, Chongqing Medical University, Chongqing 400015, China
| | - Wenqiang Chen
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Chunai Wang
- Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, China; Clinical Medical Research Centre for Integrated Chinese and Western Medicine in Anesthesia of Gansu Provincial, Lanzhou 730050, China.
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8
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Teige ES, Hillestad EMR, Steinsvik EK, Brønstad I, Lundervold A, Lundervold AJ, Valeur J, Hausken T, Berentsen B, Lied GA. Fecal bacteria and short-chain fatty acids in irritable bowel syndrome: Relations to subtype. Neurogastroenterol Motil 2024; 36:e14854. [PMID: 38946176 DOI: 10.1111/nmo.14854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 05/16/2024] [Accepted: 06/15/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND The relationship between gut microbiota and irritable bowel syndrome (IBS) subtype is unclear. We aimed to explore whether differences in fecal bacteria composition and short-chain fatty acid (SCFA) levels were associated with subtypes and symptoms of IBS. METHODS All participants delivered fecal samples and self-reports on IBS Symptom Severity Score (IBS-SSS), Bristol Stool Scale (BSS), and Gastrointestinal Symptom Rating Scale (GSRS). Fecal bacteria composition was assessed by the GA-map® Dysbiosis Test based on 16S rRNA sequences of bacterial species/groups. SCFAs were analyzed by vacuum distillation followed by gas chromatography. KEY RESULTS Sixty patients with IBS were included (mean age 38 years, 46 [77%] females): Twenty-one patients were classified as IBS-D (diarrhea), 31 IBS-M (mixed diarrhea and constipation), and eight IBS-C (constipation). Forty-two healthy controls (HCs) (mean age 35 years, 27 [64%] females) were included. Patients had a significantly higher relative frequency of dysbiosis, lower levels of Actinobacteria, and higher levels of Bacilli than HCs. Eight bacterial markers were significantly different across IBS subgroups and HCs, and 13 bacterial markers were weakly correlated with IBS symptoms. Clostridia and Veillonella spp. had a weak negative correlation with constipation scores (GSRS) and a weak positive correlation with loose stools (BSS). Diarrhea scores (GSRS) and looser stool (BSS) were weakly correlated with levels of total SCFAs, acetic and butyric acid. Levels of total SCFAs and acetic acid were weakly correlated with symptom severity (IBS-SSS). CONCLUSIONS & INFERENCES Patients with IBS had a different fecal bacteria composition compared to HCs, and alterations of SCFAs may contribute to the subtype.
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Affiliation(s)
- Erica Sande Teige
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Eline Margrete Randulff Hillestad
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Elisabeth Kjelsvik Steinsvik
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Ingeborg Brønstad
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Arvid Lundervold
- Mohn Medical Imaging and Visualization Centre, Haukeland University Hospital, Bergen, Norway
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Astri J Lundervold
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Jørgen Valeur
- Unger-Vetlesen Institute, Lovisenberg Diaconal Hospital Oslo, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Trygve Hausken
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Birgitte Berentsen
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Gülen Arslan Lied
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
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9
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Kim Y, Lim J, Oh J. Taming neuroinflammation in Alzheimer's disease: The protective role of phytochemicals through the gut-brain axis. Biomed Pharmacother 2024; 178:117277. [PMID: 39126772 DOI: 10.1016/j.biopha.2024.117277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive degenerative neurological condition characterized by cognitive decline, primarily affecting memory and logical thinking, attributed to amyloid-β plaques and tau protein tangles in the brain, leading to neuronal loss and brain atrophy. Neuroinflammation, a hallmark of AD, involves the activation of microglia and astrocytes in response to pathological changes, potentially exacerbating neuronal damage. The gut-brain axis is a bidirectional communication pathway between the gastrointestinal and central nervous systems, crucial for maintaining brain health. Phytochemicals, natural compounds found in plants with antioxidant and anti-inflammatory properties, such as flavonoids, curcumin, resveratrol, and quercetin, have emerged as potential modulators of this axis, suggesting implications for AD prevention. Intake of phytochemicals influences the gut microbial composition and its metabolites, thereby impacting neuroinflammation and oxidative stress in the brain. Consumption of phytochemical-rich foods may promote a healthy gut microbiota, fostering the production of anti-inflammatory and neuroprotective substances. Early dietary incorporation of phytochemicals offers a non-invasive strategy for modulating the gut-brain axis and potentially reducing AD risk or delaying its onset. The exploration of interventions targeting the gut-brain axis through phytochemical intake represents a promising avenue for the development of preventive or therapeutic strategies against AD initiation and progression.
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Affiliation(s)
- Yoonsu Kim
- Department of Integrative Biology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jinkyu Lim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Jisun Oh
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea.
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10
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Conley TE, Slater R, Moss S, Bulmer DC, Negro JDLR, Ijaz UZ, Pritchard DM, Parkes M, Probert C. Microbiome-driven IBS metabotypes influence response to the low FODMAP diet: insights from the faecal volatome. EBioMedicine 2024; 107:105282. [PMID: 39173527 DOI: 10.1016/j.ebiom.2024.105282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 07/23/2024] [Accepted: 07/31/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a common and debilitating disorder manifesting with abdominal pain and bowel dysfunction. A mainstay of treatment is dietary modification, including restriction of FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols). A greater response to a low FODMAP diet has been reported in those with a distinct IBS microbiome termed IBS-P. We investigated whether this is linked to specific changes in the metabolome in IBS-P. METHODS Solid phase microextraction gas chromatography-mass spectrometry was used to examine the faecal headspace of 56 IBS cases (each paired with a non-IBS household control) at baseline, and after four-weeks of a low FODMAP diet (39 pairs). 50% cases had the IBS-P microbial subtype, while the others had a microbiome that more resembled healthy controls (termed IBS-H). Clinical response to restriction of FODMAPs was measured with the IBS-symptom severity scale, from which a pain sub score was calculated. FINDINGS Two distinct metabotypes were identified and mapped onto the microbial subtypes. IBS-P was characterised by a fermentative metabolic profile rich in short chain fatty acids (SCFAs). After FODMAP restriction significant reductions in SCFAs were observed in IBS-P. SCFA levels did not change significantly in the IBS-H group. The magnitude of pain and overall symptom improvement were significantly greater in IBS-P compared to IBS-H (p = 0.016 and p = 0.026, respectively). Using just five metabolites, a biomarker model could predict microbial subtype with accuracy (AUROC 0.797, sensitivity 78.6% (95% CI: 0.78-0.94), specificity 71.4% (95% CI: 0.55-0.88). INTERPRETATION A metabotype high in SCFAs can be manipulated by restricting fermentable carbohydrate, and is associated with an enhanced clinical response to this dietary restriction. This implies that SCFAs harbour pro-nociceptive potential when produced in a specific IBS niche. By ascertaining metabotype, microbial subtype can be predicted with accuracy. This could allow targeted FODMAP restriction in those seemingly primed to respond best. FUNDING This research was co-funded by Addenbrooke's Charitable Trust, Cambridge University Hospitals and the Wellcome Sanger Institute, and supported by the NIHR Cambridge Biomedical Research Centre (BRC-1215-20014).
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Affiliation(s)
- Thomas Edward Conley
- University of Liverpool Institute of Systems, Molecular and Integrative Biology, Liverpool, UK; Liverpool University Hospitals NHS Foundation Trust, Department of Gastroenterology, Liverpool, UK.
| | - Rachael Slater
- University of Liverpool Institute of Systems, Molecular and Integrative Biology, Liverpool, UK
| | - Stephen Moss
- Cambridge University Hospitals NHS Foundation Trust, Department of Gastroenterology, Cambridge, UK; University of Cambridge Department of Medicine, Gastroenterology and Hepatology, Cambridge, Cambridgeshire, UK
| | - David Colin Bulmer
- University of Cambridge Department of Pharmacology, Cambridge, Cambridgeshire, UK
| | - Juan de la Revilla Negro
- Cambridge University Hospitals NHS Foundation Trust, Department of Gastroenterology, Cambridge, UK
| | - Umer Zeeshan Ijaz
- University of Glasgow, Mazumdar-Shaw Advanced Research Centre, Glasgow, UK
| | - David Mark Pritchard
- University of Liverpool Institute of Systems, Molecular and Integrative Biology, Liverpool, UK; Liverpool University Hospitals NHS Foundation Trust, Department of Gastroenterology, Liverpool, UK
| | - Miles Parkes
- Cambridge University Hospitals NHS Foundation Trust, Department of Gastroenterology, Cambridge, UK; University of Cambridge Department of Medicine, Gastroenterology and Hepatology, Cambridge, Cambridgeshire, UK
| | - Chris Probert
- University of Liverpool Institute of Systems, Molecular and Integrative Biology, Liverpool, UK; Liverpool University Hospitals NHS Foundation Trust, Department of Gastroenterology, Liverpool, UK
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11
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Zhou M, Wu J, Shao Y, Zhang J, Zheng R, Shi Q, Wang J, Liu B. Short-chain fatty acids reverses gut microbiota dysbiosis-promoted progression of glioblastoma by up-regulating M1 polarization in the tumor microenvironment. Int Immunopharmacol 2024; 141:112881. [PMID: 39159556 DOI: 10.1016/j.intimp.2024.112881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 07/28/2024] [Accepted: 08/03/2024] [Indexed: 08/21/2024]
Abstract
Glioblastoma (GBM), known as the most malignant and common primary brain tumor of the central nervous system, has finite therapeutic options and a poor prognosis. Studies have shown that host intestinal microorganisms play a role in the immune regulation of parenteral tumors in a number of different ways, either directly or indirectly. However, the potential impact of gut microbiota on tumor microenvironment, particularly glioma immunological milieu, has not been clarified exactly. In this study, by using an orthotopic GBM model, we found gut microbiota dysbiosis caused by antibiotic cocktail treatment boosted the tumor process in vivo. An obvious change that followed gut microbiota dysbiosis was the enhanced percentage of M2-like macrophages in the TME, in parallel with a decrease in the levels of gut microbial metabolite, short-chain fatty acids (SCFAs) in the blood and tumor tissues. Oral supplementation with SCFAs can increase the proportion of M1-like macrophages in the TME, which improves the outcomes of glioma. In terms of mechanism, SCFAs-activated glycolysis in the tumor-associated macrophages may be responsible for the elevated M1 polarization in the TME. This study will enable us to better comprehend the "gut-brain" axis and be meaningful for the development of TAM-targeting immunotherapeutic strategies for GBM patients.
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Affiliation(s)
- Mengnan Zhou
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China; Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Jianqi Wu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Shao
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Jiameng Zhang
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Rui Zheng
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Qi Shi
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Jia Wang
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Beixing Liu
- Department of Pathogenic Microbiology, School of Basic Medical Science, China Medical University, Shenyang 110122, China.
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12
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Zampieri G, Cabrol L, Urra C, Castro-Nallar E, Schwob G, Cleary D, Angione C, Deacon RMJ, Hurley MJ, Cogram P. Microbiome alterations are associated with apolipoprotein E mutation in Octodon degus and humans with Alzheimer's disease. iScience 2024; 27:110348. [PMID: 39148714 PMCID: PMC11324989 DOI: 10.1016/j.isci.2024.110348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/22/2024] [Accepted: 06/20/2024] [Indexed: 08/17/2024] Open
Abstract
Gut microbiome dysbiosis is linked to many neurological disorders including Alzheimer's disease (AD). A major risk factor for AD is polymorphism in the apolipoprotein E (APOE) gene, which affects gut microbiome composition. To explore the gut-brain axis in AD, long-lived animal models of naturally developing AD-like pathologies are needed. Octodon degus (degu) exhibit spontaneous AD-like symptoms and ApoE mutations, making them suitable for studying the interplay between AD genetic determinants and gut microbiome. We analyzed the association between APOE genotype and gut microbiome in 50 humans and 32 degu using16S rRNA gene amplicon sequencing. Significant associations were found between the degu ApoE mutation and gut microbial changes in degu, notably a depletion of Ruminococcaceae and Akkermansiaceae and an enrichment of Prevotellaceae, mirroring patterns seen in people with AD. The altered taxa were previously suggested to be involved in AD, validating the degu as an unconventional model for studying the AD/microbiome crosstalk.
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Affiliation(s)
- Guido Zampieri
- School of Computing, Engineering and Digital Technologies, Department of Computer Science and Information Systems, Teesside University, Middlesbrough, Tees Valley TS1 3BX, UK
| | - Léa Cabrol
- Institute of Ecology and Biodiversity, Department of Ecological Sciences, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Santiago 7800003, Chile
- Aix Marseille University, University Toulon, CNRS, IRD, Méditerranéen Institute of Océanographie (MIO) UM 110, Avenue de Luminy, 13009 Marseille, France
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Las Palmeras 3425, Santiago 7800003, Chile
| | - Claudio Urra
- Institute of Ecology and Biodiversity, Department of Ecological Sciences, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Santiago 7800003, Chile
| | - Eduardo Castro-Nallar
- Center for Bioinformatics and Integrative Biology, Universidad Andres Bello, Avenida República 239, Santiago 7591538, Chile
| | - Guillaume Schwob
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Las Palmeras 3425, Santiago 7800003, Chile
| | - David Cleary
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
| | - Claudio Angione
- School of Computing, Engineering and Digital Technologies, Department of Computer Science and Information Systems, Teesside University, Middlesbrough, Tees Valley TS1 3BX, UK
| | - Robert M J Deacon
- Institute of Ecology and Biodiversity, Department of Ecological Sciences, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Santiago 7800003, Chile
| | - Michael J Hurley
- Institute of Ecology and Biodiversity, Department of Ecological Sciences, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Santiago 7800003, Chile
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | - Patricia Cogram
- Institute of Ecology and Biodiversity, Department of Ecological Sciences, Faculty of Science, Universidad de Chile, Las Palmeras 3425, Santiago 7800003, Chile
- Department of Anatomy and Neurobiology, School of Medicine, B240 Med Sci, University of California, Irvine, Irvine, CA 92697, USA
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13
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Chen CY, Wang YF, Lei L, Zhang Y. Impacts of microbiota and its metabolites through gut-brain axis on pathophysiology of major depressive disorder. Life Sci 2024; 351:122815. [PMID: 38866215 DOI: 10.1016/j.lfs.2024.122815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/21/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Major depressive disorder (MDD) is characterized by a high rate of recurrence and disability, which seriously affects the quality of life of patients. That's why a deeper understanding of the mechanisms of MDD pathology is an urgent task, and some studies have found that intestinal symptoms accompany people with MDD. The microbiota-gut-brain axis is the bidirectional communication between the gut microbiota and the central nervous system, which was found to have a strong association with the pathogenesis of MDD. Previous studies have focused more on the communication between the gut and the brain through neuroendocrine, neuroimmune and autonomic pathways, and the role of gut microbes and their metabolites in depression is unclear. Metabolites of intestinal microorganisms (e.g., tryptophan, kynurenic acid, indole, and lipopolysaccharide) can participate in the pathogenesis of MDD through immune and inflammatory pathways or by altering the permeability of the gut and blood-brain barrier. In addition, intestinal microbes can communicate with intestinal neurons and glial cells to affect the integrity and function of intestinal nerves. However, the specific role of gut microbes and their metabolites in the pathogenesis of MDD is not well understood. Hence, the present review summarizes how gut microbes and their metabolites are directly or indirectly involved in the pathogenesis of MDD.
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Affiliation(s)
- Cong-Ya Chen
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yu-Fei Wang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Lan Lei
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yi Zhang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China.
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14
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Mahmoudi F, Jalayeri MHT, Montaseri A, MohamedKhosroshahi L, Baradaran B. Microbial natural compounds and secondary metabolites as Immunomodulators: A review. Int J Biol Macromol 2024:134778. [PMID: 39153680 DOI: 10.1016/j.ijbiomac.2024.134778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 08/11/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Immunomodulatory therapies are beneficial strategies for the improvement of immune system function. Today, due to the increasing prevalence of immune disorders, cancer, and new viral diseases, there is a greater need to introduce immunomodulatory compounds with more efficiency and fewer side effects. Microbial derivatives are fertile and attractive grounds for discovering lots of novel compounds with various medical properties. The discovery of many natural compounds derived from bacterial sources, such as secondary metabolites with promising immunomodulating activities, represents the importance of this topic in drug discovery and emphasizes the necessity for a coherent source of study in this area. Considering this need, in this review, we aim to focus on the current information about the immunomodulatory effects of bacterial secondary metabolites and natural immunomodulators derived from microorganisms.
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Affiliation(s)
- Fariba Mahmoudi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hadi Tajik Jalayeri
- Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital Golestan University of Medical Sciences, Gorgan, Iran
| | - Azadeh Montaseri
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Unit of Histology and Medical Embryology, Sapienza University of Rome, 00161 Rome, Italy.
| | - Leila MohamedKhosroshahi
- Department of Immunology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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15
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Kong C, Yang M, Yue N, Zhang Y, Tian C, Wei D, Shi R, Yao J, Wang L, Li D. Restore Intestinal Barrier Integrity: An Approach for Inflammatory Bowel Disease Therapy. J Inflamm Res 2024; 17:5389-5413. [PMID: 39161679 PMCID: PMC11330754 DOI: 10.2147/jir.s470520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/02/2024] [Indexed: 08/21/2024] Open
Abstract
The intestinal barrier maintained by various types of columnar epithelial cells, plays a crucial role in regulating the interactions between the intestinal contents (such as the intestinal microbiota), the immune system, and other components. Dysfunction of the intestinal mucosa is a significant pathophysiological mechanism and clinical manifestation of inflammatory bowel disease (IBD). However, current therapies for IBD primarily focus on suppressing inflammation, and no disease-modifying treatments specifically target the epithelial barrier. Given the side effects associated with chronic immunotherapy, effective alternative therapies that promote mucosal healing are highly attractive. In this review, we examined the function of intestinal epithelial barrier function and the mechanisms of behind its disruption in IBD. We illustrated the complex process of intestinal mucosal healing and proposed therapeutic approaches to promote mucosal healing strategies in IBD. These included the application of stem cell transplantation and organ-like tissue engineering approaches to generate new intestinal tissue. Finally, we discussed potential strategies to restore the function of the intestinal barrier as a treatment for IBD.
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Affiliation(s)
- Chen Kong
- The Second Clinical Medical College, Jinan University; Shenzhen, Guangdong, People’s Republic of China
| | - Meifeng Yang
- Department of Hematology, Yantian District People’s Hospital, Shenzhen, Guangdong, People’s Republic of China
| | - Ningning Yue
- Department of Gastroenterology, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
| | - Yuan Zhang
- Department of Medical Administration, Huizhou Institute of Occupational Diseases Control and Prevention, Huizhou, Guangdong, People’s Republic of China
| | - Chengmei Tian
- Department of Emergency, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University; the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
| | - Daoru Wei
- Department of Rehabilitation, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University; the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
| | - Ruiyue Shi
- The Second Clinical Medical College, Jinan University; Shenzhen, Guangdong, People’s Republic of China
| | - Jun Yao
- The Second Clinical Medical College, Jinan University; Shenzhen, Guangdong, People’s Republic of China
| | - Lisheng Wang
- The Second Clinical Medical College, Jinan University; Shenzhen, Guangdong, People’s Republic of China
| | - Defeng Li
- The Second Clinical Medical College, Jinan University; Shenzhen, Guangdong, People’s Republic of China
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16
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Liu R, Durbin-Johnson B, Paciotti B, Liu AT, Weakley A, Liu X, Wan YJY. Metabolic dysfunctions predict the development of Alzheimer's disease: Statistical and machine learning analysis of EMR data. Alzheimers Dement 2024. [PMID: 39140368 DOI: 10.1002/alz.14101] [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: 02/08/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 08/15/2024]
Abstract
INTRODUCTION The incidence of Alzheimer's disease (AD) and obesity rise concomitantly. This study examined whether factors affecting metabolism, race/ethnicity, and sex are associated with AD development. METHODS The analyses included patients ≥ 65 years with AD diagnosis in six University of California hospitals between January 2012 and October 2023. The controls were race/ethnicity, sex, and age matched without dementia. Data analyses used the Cox proportional hazards model and machine learning (ML). RESULTS Hispanic/Latino and Native Hawaiian/Pacific Islander, but not Black subjects, had increased AD risk compared to White subjects. Non-infectious hepatitis and alcohol abuse were significant hazards, and alcohol abuse had a greater impact on women than men. While underweight increased AD risk, overweight or obesity reduced risk. ML confirmed the importance of metabolic laboratory tests in predicting AD development. DISCUSSION The data stress the significance of metabolism in AD development and the need for racial/ethnic- and sex-specific preventive strategies. HIGHLIGHTS Hispanics/Latinos and Native Hawaiians/Pacific Islanders show increased hazards of Alzheimer's disease (AD) compared to White subjects. Underweight individuals demonstrate a significantly higher hazard ratio for AD compared to those with normal body mass index. The association between obesity and AD hazard differs among racial groups, with elderly Asian subjects showing increased risk compared to White subjects. Alcohol consumption and non-infectious hepatitis are significant hazards for AD. Machine learning approaches highlight the potential of metabolic panels for AD prediction.
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Affiliation(s)
- Rex Liu
- Department of Computer Science, University of California, Davis, Sacramento, California, USA
| | - Blythe Durbin-Johnson
- Department of Public Health Sciences, University of California, Davis, Sacramento, California, USA
| | - Brian Paciotti
- Data Center of Excellence, University of California, Davis, Sacramento, California, USA
| | - Albert T Liu
- Department of Obstetrics/Gynecology, University of California, Davis, Sacramento, California, USA
| | - Alyssa Weakley
- Department of Neurology, University of California, Davis, Sacramento, California, USA
| | - Xin Liu
- Department of Computer Science, University of California, Davis, Sacramento, California, USA
| | - Yu-Jui Yvonne Wan
- Department of Medical Pathology and Laboratory Medicine, University of California, Davis, Sacramento, California, USA
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17
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Kang N, Sargsyan S, Chough I, Petrick L, Liao J, Chen W, Pavlovic N, Lurmann FW, Martinez MP, McConnell R, Xiang AH, Chen Z. Dysregulated Metabolic Pathways Associated with Air Pollution Exposure and the Risk of Autism: Evidence from Epidemiological Studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:124729. [PMID: 39147228 DOI: 10.1016/j.envpol.2024.124729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 07/24/2024] [Accepted: 08/13/2024] [Indexed: 08/17/2024]
Abstract
Autism spectrum disorder (ASD) is a developmental disorder with symptoms that range from social and communication impairments to restricted interests and repetitive behavior and is the 4th most disabling condition for children aged 5-14. Risk factors of ASD are not fully understood. Environmental risk factors are believed to play a significant role in the ASD epidemic. Research focusing on air pollution exposure as an early-life risk factor of autism is growing, with numerous studies finding associations of traffic and industrial emissions with an increased risk of ASD. One of the possible mechanisms linking autism and air pollution exposure is metabolic dysfunction. However, there were no consensus about the key metabolic pathways and corresponding metabolite signatures in mothers and children that are altered by air pollution exposure and cause the ASD. Therefore, we performed a review of published papers examining the metabolomic signatures and metabolic pathways that are associated with either air pollution exposure or ASD risk in human studies. In conclusion, we found that dysregulated lipid, fatty acid, amino acid, neurotransmitter, and microbiome metabolisms are associated with both short-term and long-term air pollution exposure and the risk of ASD. These dysregulated metabolisms may provide insights into ASD etiology related to air pollution exposure, particularly during the perinatal period in which neurodevelopment is highly susceptible to damage from oxidative stress and inflammation.
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Affiliation(s)
- Ni Kang
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Suzan Sargsyan
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Ino Chough
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Lauren Petrick
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, United States
| | - Jiawen Liao
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Wu Chen
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | | | | | - Mayra P Martinez
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Rob McConnell
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Anny H Xiang
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Zhanghua Chen
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA.
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18
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Vijaya AK, Kuras S, Šimoliūnas E, Mingaila J, Makovskytė K, Buišas R, Daliri EBM, Meškys R, Baltriukienė D, Burokas A. Prebiotics mitigate the detrimental effects of High-Fat diet on Memory, anxiety and microglia functionality in ageing mice. Brain Behav Immun 2024; 122:167-184. [PMID: 39142421 DOI: 10.1016/j.bbi.2024.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024] Open
Abstract
Ageing is characterised by a progressive increase in systemic inflammation and especially neuroinflammation. Neuroinflammation is associated with altered brain states that affect behaviour, such as an increased level of anxiety with a concomitant decline in cognitive abilities. Although multiple factors play a role in the development of neuroinflammation, microglia have emerged as a crucial target. Microglia are the only macrophage population in the CNS parenchyma that plays a crucial role in maintaining homeostasis and in the immune response, which depends on the activation and subsequent deactivation of microglia. Therefore, microglial dysfunction has a major impact on neuroinflammation. The gut microbiota has been shown to significantly influence microglia from birth to adulthood in terms of development, proliferation, and function. Diet is a key modulating factor that influences the composition of the gut microbiota, along with prebiotics that support the growth of beneficial gut bacteria. Although the role of diet in neuroinflammation and behaviour has been well established, its relationship with microglia functionality is less explored. This article establishes a link between diet, animal behaviour and the functionality of microglia. The results of this research stem from experiments on mouse behaviour, i.e., memory, anxiety, and studies on microglia functionality, i.e., cytochemistry (phagocytosis, cellular senescence, and ROS assays), gene expression and protein quantification. In addition, shotgun sequencing was performed to identify specific bacterial families that may play a crucial role in the brain function. The results showed negative effects of long-term consumption of a high fat diet on ageing mice, epitomised by increased body weight, glucose intolerance, anxiety, cognitive impairment and microglia dysfunction compared to ageing mice on a control diet. These effects were a consequence of the changes in gut microbiota modulated by the diet. However, by adding the prebiotics fructo- and galacto-oligosaccharides, we were able to mitigate the deleterious effects of a long-term high-fat diet.
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Affiliation(s)
- Akshay Kumar Vijaya
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Simonas Kuras
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Egidijus Šimoliūnas
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Jonas Mingaila
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Karolina Makovskytė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Rokas Buišas
- Department of Neurobiology and Biophysics, Institute of Bioscience, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Eric Banan-Mwine Daliri
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Rolandas Meškys
- Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania
| | - Daiva Baltriukienė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania.
| | - Aurelijus Burokas
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania.
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19
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Lin X, He K, Gu Z, Zhao X. Emerging chemophysiological diversity of gut microbiota metabolites. Trends Pharmacol Sci 2024:S0165-6147(24)00148-2. [PMID: 39129061 DOI: 10.1016/j.tips.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/19/2024] [Accepted: 07/19/2024] [Indexed: 08/13/2024]
Abstract
Human physiology is profoundly influenced by the gut microbiota, which generates a wide array of metabolites. These microbiota-derived compounds serve as signaling molecules, interacting with various cellular targets in the gastrointestinal tract and distant organs, thereby impacting our immune, metabolic, and neurobehavioral systems. Recent advancements have unveiled unique physiological functions of diverse metabolites derived from tryptophan (Trp) and bile acids (BAs). This review highlights the emerging chemophysiological diversity of these metabolites and discusses the role of chemical and biological tools in analyzing and therapeutically manipulating microbial metabolism and host targets, with the aim of bridging the chemical diversity with physiological complexity in host-microbe molecular interactions.
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Affiliation(s)
- Xiaorong Lin
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Kaixin He
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Jinhua Institute of Zhejiang University, Jinhua 321299, Zhejiang, China; State Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Zhen Gu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Jinhua Institute of Zhejiang University, Jinhua 321299, Zhejiang, China; State Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou 311121, Zhejiang, China; Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
| | - Xiaohui Zhao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Jinhua Institute of Zhejiang University, Jinhua 321299, Zhejiang, China; State Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou 310058, Zhejiang, China.
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20
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Li R, Miao Z, Liu Y, Chen X, Wang H, Su J, Chen J. The Brain-Gut-Bone Axis in Neurodegenerative Diseases: Insights, Challenges, and Future Prospects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2307971. [PMID: 39120490 DOI: 10.1002/advs.202307971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 06/04/2024] [Indexed: 08/10/2024]
Abstract
Neurodegenerative diseases are global health challenges characterized by the progressive degeneration of nerve cells, leading to cognitive and motor impairments. The brain-gut-bone axis, a complex network that modulates multiple physiological systems, has gained increasing attention owing to its profound effects on the occurrence and development of neurodegenerative diseases. No comprehensive review has been conducted to clarify the triangular relationship involving the brain-gut-bone axis and its potential for innovative therapies for neurodegenerative disorders. In light of this, a new perspective is aimed to propose on the interplay between the brain, gut, and bone systems, highlighting the potential of their dynamic communication in neurodegenerative diseases, as they modulate multiple physiological systems, including the nervous, immune, endocrine, and metabolic systems. Therapeutic strategies for maintaining the balance of the axis, including brain health regulation, intestinal microbiota regulation, and improving skeletal health, are also explored. The intricate physiological interactions within the brain-gut-bone axis pose a challenge in the development of effective treatments that can comprehensively target this system. Furthermore, the safety of these treatments requires further evaluation. This review offers a novel insights and strategies for the prevention and treatment of neurodegenerative diseases, which have important implications for clinical practice and patient well-being.
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Affiliation(s)
- Rong Li
- Department of Neurosurgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Zong Miao
- Department of Neurosurgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yu'e Liu
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Xiao Chen
- Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
| | - Hongxiang Wang
- Department of Neurosurgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Jiacan Su
- Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
| | - Juxiang Chen
- Department of Neurosurgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
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21
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Ling Z, Lan Z, Cheng Y, Liu X, Li Z, Yu Y, Wang Y, Shao L, Zhu Z, Gao J, Lei W, Ding W, Liao R. Altered gut microbiota and systemic immunity in Chinese patients with schizophrenia comorbid with metabolic syndrome. J Transl Med 2024; 22:729. [PMID: 39103909 PMCID: PMC11302365 DOI: 10.1186/s12967-024-05533-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 07/23/2024] [Indexed: 08/07/2024] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is highly prevalent in individuals with schizophrenia (SZ), leading to negative consequences like premature mortality. Gut dysbiosis, which refers to an imbalance of the microbiota, and chronic inflammation are associated with both SZ and MetS. However, the relationship between gut dysbiosis, host immunological dysfunction, and SZ comorbid with MetS (SZ-MetS) remains unclear. This study aims to explore alterations in gut microbiota and their correlation with immune dysfunction in SZ-MetS, offering new insights into its pathogenesis. METHODS AND RESULTS We enrolled 114 Chinese patients with SZ-MetS and 111 age-matched healthy controls from Zhejiang, China, to investigate fecal microbiota using Illumina MiSeq sequencing targeting 16 S rRNA gene V3-V4 hypervariable regions. Host immune responses were assessed using the Bio-Plex Pro Human Cytokine 27-Plex Assay to examine cytokine profiles. In SZ-MetS, we observed decreased bacterial α-diversity and significant differences in β-diversity. LEfSe analysis identified enriched acetate-producing genera (Megamonas and Lactobacillus), and decreased butyrate-producing bacteria (Subdoligranulum, and Faecalibacterium) in SZ-MetS. These altered genera correlated with body mass index, the severity of symptoms (as measured by the Scale for Assessment of Positive Symptoms and Scale for Assessment of Negative Symptoms), and triglyceride levels. Altered bacterial metabolic pathways related to lipopolysaccharide biosynthesis, lipid metabolism, and various amino acid metabolism were also found. Additionally, SZ-MetS exhibited immunological dysfunction with increased pro-inflammatory cytokines, which correlated with the differential genera. CONCLUSION These findings suggested that gut microbiota dysbiosis and immune dysfunction play a vital role in SZ-MetS development, highlighting potential therapeutic approaches targeting the gut microbiota. While these therapies show promise, further mechanistic studies are needed to fully understand their efficacy and safety before clinical implementation.
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Affiliation(s)
- Zongxin Ling
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China.
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, 250000, China.
| | - Zhiyong Lan
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, 324003, China
| | - Yiwen Cheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, 250000, China
| | - Xia Liu
- Department of Intensive Care Unit, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
| | - Zhimeng Li
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, 324003, China
| | - Ying Yu
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, 324003, China
| | - Yuwei Wang
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, 324003, China
| | - Li Shao
- School of Clinical Medicine, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, 310015, China
| | - Zhangcheng Zhu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jie Gao
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
| | - Wenhui Lei
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, 250000, China
- Department of Basic Medicine, Shandong First Medical University, Jinan, Shandong, 250000, China
| | - Wenwen Ding
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Rongxian Liao
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, 324003, China.
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22
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Yu W, Wang J, Xiong Y, Liu J, Baranenko D, Zhang Y, Lu W. In vivo absorption, in vitro simulated digestion, and fecal fermentation properties of Imperata cylindrica polysaccharides and their effects on gut microbiota. Food Chem 2024; 461:140773. [PMID: 39154459 DOI: 10.1016/j.foodchem.2024.140773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/18/2024] [Accepted: 08/04/2024] [Indexed: 08/20/2024]
Abstract
Recently we have investigated polysaccharide from Imperata cylindrica (ICP) for its physicochemical structure and biological activities. However, the digestion characteristics have yet to be understood. This study investigated the digestion and metabolism characteristics of ICP through in vivo fluorescence tracking, in vitro simulated digestion, fecal fermentation experiments, and microbial sequencing. The results showed that ICP significant distribution in the gastrointestinal tract and kidneys. ICP underwent slight degradation during simulated gastric and intestinal digestion. During fecal fermentation, the utilization degree of ICP and the concentration of short-chain fatty acids (SCFAs) increased. ICP promoted the increase of beneficial microbial abundance. To understand the impact of ICP on the integrity and health of intestinal tissues, molecular docking was employed to preliminarily predict the interaction between ICP and key proteins. The results revealed that ICP could recognize and bind to key proteins through high-affinity targeting binding sites.
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Affiliation(s)
- Wenchen Yu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China; National and Local Joint Engineering Laboratory for Synthesis, Harbin Institute of Technology, Harbin, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing, China
| | - Junwen Wang
- National and Local Joint Engineering Laboratory for Synthesis, Harbin Institute of Technology, Harbin, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing, China
| | - Yi Xiong
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China; National and Local Joint Engineering Laboratory for Synthesis, Harbin Institute of Technology, Harbin, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing, China
| | - Jiaren Liu
- School of Medicine and Health, Harbin Institute of Technology, Harbin, China
| | - Denis Baranenko
- School of Life Sciences, Faculty of Ecotechnologies, ITMO University, St. Petersburg. 197101, Russia
| | - Yingchun Zhang
- National and Local Joint Engineering Laboratory for Synthesis, Harbin Institute of Technology, Harbin, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing, China; Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, China.
| | - Weihong Lu
- National and Local Joint Engineering Laboratory for Synthesis, Harbin Institute of Technology, Harbin, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing, China; Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, China.
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23
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Hu A, Zaongo SD, Harypursat V, Wang X, Ouyang J, Chen Y. HIV-associated neurocognitive disorder: key implications of the microbiota-gut-brain axis. Front Microbiol 2024; 15:1428239. [PMID: 39155987 PMCID: PMC11327151 DOI: 10.3389/fmicb.2024.1428239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 07/23/2024] [Indexed: 08/20/2024] Open
Abstract
HIV-associated neurocognitive disorder (HAND) is now recognized to be relatively common in people living with HIV (PLWH), and remains a common cause of cognitive impairment. Unfortunately, the fundamental pathogenic processes underlying this specific outcome of HIV infection have not as yet been fully elucidated. With increased interest in research related to the microbiota-gut-brain axis, the gut-brain axis has been shown to play critical roles in regulating central nervous system disorders such as Alzheimer's disease and Parkinson's disease. PLWH are characterized by a particular affliction, referred to as gut-associated dysbiosis syndrome, which provokes an alteration in microbial composition and diversity, and of their associated metabolite composition within the gut. Interestingly, the gut microbiota has also been recognized as a key element, which both positively and negatively influences human brain health, including the functioning and development of the central nervous system (CNS). In this review, based on published evidence, we critically discuss the relevant interactions between the microbiota-gut-brain axis and the pathogenesis of HAND in the context of HIV infection. It is likely that HAND manifestation in PLWH mainly results from (i) gut-associated dysbiosis syndrome and a leaky gut on the one hand and (ii) inflammation on the other hand. In other words, the preceding features of HIV infection negatively alter the composition of the gut microbiota (microbes and their associated metabolites) and promote proinflammatory immune responses which singularly or in tandem damage neurons and/or induce inadequate neuronal signaling. Thus, HAND is fairly prevalent in PLWH. This work aims to demonstrate that in the quest to prevent and possibly treat HAND, the gut microbiota may ultimately represent a therapeutically targetable "host factor."
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Affiliation(s)
- Aizhen Hu
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Silvere D. Zaongo
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
- Department of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
| | - Vijay Harypursat
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
- Department of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
| | - Xin Wang
- Phase I Clinical Trial Center, Chonggang General Hospital, Chongqing, China
| | - Jing Ouyang
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Yaokai Chen
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
- Department of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
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24
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You M, Chen N, Yang Y, Cheng L, He H, Cai Y, Liu Y, Liu H, Hong G. The gut microbiota-brain axis in neurological disorders. MedComm (Beijing) 2024; 5:e656. [PMID: 39036341 PMCID: PMC11260174 DOI: 10.1002/mco2.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 07/23/2024] Open
Abstract
Previous studies have shown a bidirectional communication between human gut microbiota and the brain, known as the microbiota-gut-brain axis (MGBA). The MGBA influences the host's nervous system development, emotional regulation, and cognitive function through neurotransmitters, immune modulation, and metabolic pathways. Factors like diet, lifestyle, genetics, and environment shape the gut microbiota composition together. Most research have explored how gut microbiota regulates host physiology and its potential in preventing and treating neurological disorders. However, the individual heterogeneity of gut microbiota, strains playing a dominant role in neurological diseases, and the interactions of these microbial metabolites with the central/peripheral nervous systems still need exploration. This review summarizes the potential role of gut microbiota in driving neurodevelopmental disorders (autism spectrum disorder and attention deficit/hyperactivity disorder), neurodegenerative diseases (Alzheimer's and Parkinson's disease), and mood disorders (anxiety and depression) in recent years and discusses the current clinical and preclinical gut microbe-based interventions, including dietary intervention, probiotics, prebiotics, and fecal microbiota transplantation. It also puts forward the current insufficient research on gut microbiota in neurological disorders and provides a framework for further research on neurological disorders.
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Affiliation(s)
- Mingming You
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Nan Chen
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yuanyuan Yang
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Lingjun Cheng
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Hongzhang He
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Yanhua Cai
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yating Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Haiyue Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Guolin Hong
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
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25
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Shekarabi A, Qureishy I, Puglisi CH, Dalseth M, Vuong HE. Host-microbe interactions: communication in the microbiota-gut-brain axis. Curr Opin Microbiol 2024; 80:102494. [PMID: 38824840 PMCID: PMC11323153 DOI: 10.1016/j.mib.2024.102494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/04/2024]
Abstract
Animals harbor a diverse array of symbiotic micro-organisms that coexist in communities across different body sites. These microbes maintain host homeostasis and respond to environmental insults to impact host physiological processes. Trillions of indigenous microbes reside in the gastrointestinal tract and engage with the host central nervous system (microbiota-gut-brain axis) by modulating immune responses, interacting with gut intrinsic and extrinsic nervous system, and regulating neuromodulators and biochemicals. These gut microbiota to brain signaling pathways are constantly informed by each other and are hypothesized to mediate brain health across the lifespan. In this review, we will examine the crosstalk of gut microbiota to brain communications in neurological pathologies, with an emphasis on microbial metabolites and neuromodulators, and provide a discussion of recent advances that help elucidate the microbiota as a therapeutic target for treating brain and behavioral disorders.
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Affiliation(s)
- Aryan Shekarabi
- University of Minnesota Twin-Cities, Department of Pediatrics, Neonatology Division, USA
| | - Izhan Qureishy
- University of Minnesota Twin-Cities, Department of Pediatrics, Neonatology Division, USA
| | - Chloe H Puglisi
- University of Minnesota Twin-Cities, Department of Pediatrics, Neonatology Division, USA
| | - Marge Dalseth
- University of Minnesota Twin-Cities, Department of Pediatrics, Neonatology Division, USA
| | - Helen E Vuong
- University of Minnesota Twin-Cities, Department of Pediatrics, Neonatology Division, USA.
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26
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Behrens LMP, Gasparotto J, Rampelotto PH, Escalona MAR, da Silva LDS, Carazza-Kessler FG, Barbosa CP, Campos MS, Dorn M, Gelain DP, Moreira JCF. Sodium propionate oral supplementation ameliorates depressive-like behavior through gut microbiome and histone 3 epigenetic regulation. J Nutr Biochem 2024; 130:109660. [PMID: 38685283 DOI: 10.1016/j.jnutbio.2024.109660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/30/2024] [Accepted: 04/23/2024] [Indexed: 05/02/2024]
Abstract
Major depressive disorder (MDD) is a global health concern, affecting over 250 million individuals worldwide. In recent years, the gut-brain axis has emerged as a promising field for understanding the pathophysiology of MDD. Microbial metabolites, such as short-chain fatty acids (SCFAs)-acetate, butyrate, and propionate-, have gained attention for their potential to influence epigenetic modifications within the host brain. However, the precise mechanisms through which these metabolites participate in MDD pathophysiology remain elusive. This study was designed to investigate the effects of oral SCFA supplementation in adult male Wistar rats subjected to chronic unpredictable mild stress (CUMS). A subset of control and CUMS-exposed rats received different supplementations: sodium acetate (NaOAc) at a concentration of 60 mM, sodium butyrate (NaB) at 40 mM, sodium propionate (NaP) at 50 mM, or a mixture of these SCFAs. The gut microbiome was assessed through 16S rRNA sequencing, and epigenetic profiling was performed using Western blot analysis. Results demonstrated that NaP supplementation significantly alleviated anhedonia in stressed animals, as evidenced by improved performance in the sucrose consumption test. This ameliorative effect was potentially associated with the modulation of gut bacterial communities, accompanied by the attenuation of the region-specific epigenetic dysregulation in the brain of the animals exposed to chronic stress. These findings suggest a potential association between gut dysbiosis and stress response, and NaP could be a promising target for future MDD interventions. However, further studies are needed to fully elucidate the underlying mechanisms of these effects.
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Affiliation(s)
- Luiza Marques Prates Behrens
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Graduate Program in Biological Sciences: Biochemistry, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Graduate Program in Cellular and Molecular Biology, Center of Biotechnology, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91501-970, Brazil.
| | - Juciano Gasparotto
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
| | - Pabulo Henrique Rampelotto
- Bioinformatics and Biostatistics Core Facility, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91501-907, Brazil
| | - Manuel Adrian Riveros Escalona
- Graduate Program in Veterinary Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91540-000, Brazil
| | - Lucas Dos Santos da Silva
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Graduate Program in Cellular and Molecular Biology, Center of Biotechnology, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91501-970, Brazil
| | - Flávio Gabriel Carazza-Kessler
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Graduate Program in Biological Sciences: Biochemistry, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
| | - Camila Pocharski Barbosa
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
| | - Marlene Soares Campos
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
| | - Márcio Dorn
- Department of Theoretical Informatics, Institute of Informatics, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91501-970, Brazil; Center of Biotechnology, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 91501-970, Brazil
| | - Daniel Pens Gelain
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
| | - José Cláudio Fonseca Moreira
- Center of Oxidative Stress Studies, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil; Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul - UFRGS, Porto Alegre 90035-003, Brazil
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27
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Lin K, Peng F, He K, Qian Z, Mei X, Su Z, Wujimaiti Y, Xia X, Zhang T. Research progress on intestinal microbiota regulating cognitive function through the gut-brain axis. Neurol Sci 2024; 45:3711-3721. [PMID: 38632176 DOI: 10.1007/s10072-024-07525-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
The intestinal microbiota community is a fundamental component of the human body and plays a significant regulatory role in maintaining overall health and in the management disease states.The intestinal microbiota-gut-brain axis represents a vital connection in the cognitive regulation of the central nervous system by the intestinal microbiota.The impact of intestinal microbiota on cognitive function is hypothesized to manifest through both the nervous system and circulatory system. Imbalances in intestinal microbiota during the perioperative period could potentially contribute to perioperative neurocognitive dysfunction. This article concentrates on a review of existing literature to explore the potential influence of intestinal microbiota on brain and cognitive functions via the nervous and circulatory systems.Additionally, it summarizes recent findings on the impact of perioperative intestinal dysbacteriosis on perioperative neurocognitive dysfunction and suggests novel approaches for prevention and treatment of this condition.
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Affiliation(s)
- Kaijie Lin
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Feng Peng
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China
| | - Kunyang He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhengyu Qian
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Xuan Mei
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhikun Su
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | | | - Xun Xia
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
| | - Tianyao Zhang
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
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28
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Taghizadeh Ghassab F, Shamlou Mahmoudi F, Taheri Tinjani R, Emami Meibodi A, Zali MR, Yadegar A. Probiotics and the microbiota-gut-brain axis in neurodegeneration: Beneficial effects and mechanistic insights. Life Sci 2024; 350:122748. [PMID: 38843992 DOI: 10.1016/j.lfs.2024.122748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/21/2024] [Accepted: 05/23/2024] [Indexed: 06/10/2024]
Abstract
Neurodegenerative diseases (NDs) are a group of heterogeneous disorders with a high socioeconomic burden. Although pharmacotherapy is currently the principal therapeutic approach for the management of NDs, mounting evidence supports the notion that the protracted application of available drugs would abate their dopaminergic outcomes in the long run. The therapeutic application of microbiome-based modalities has received escalating attention in biomedical works. In-depth investigations of the bidirectional communication between the microbiome in the gut and the brain offer a multitude of targets for the treatment of NDs or maximizing the patient's quality of life. Probiotic administration is a well-known microbial-oriented approach to modulate the gut microbiota and potentially influence the process of neurodegeneration. Of note, there is a strong need for further investigation to map out the mechanistic prospects for the gut-brain axis and the clinical efficacy of probiotics. In this review, we discuss the importance of microbiome modulation and hemostasis via probiotics, prebiotics, postbiotics and synbiotics in ameliorating pathological neurodegenerative events. Also, we meticulously describe the underlying mechanism of action of probiotics and their metabolites on the gut-brain axis in different NDs. We suppose that the present work will provide a functional direction for the use of probiotic-based modalities in promoting current practical treatments for the management of neurodegenerative-related diseases.
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Affiliation(s)
- Fatemeh Taghizadeh Ghassab
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Shamlou Mahmoudi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reyhaneh Taheri Tinjani
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Armitasadat Emami Meibodi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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29
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Zhang H, Zhang S, Chen L, Xu R, Zhu J. LC-HRMS-based metabolomics and lipidomics analyses of a novel probiotic Akkermansia Muciniphila in response to different nutritional stimulations. J Microbiol Methods 2024; 223:106975. [PMID: 38889842 DOI: 10.1016/j.mimet.2024.106975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
The mucin-degrading gut commensal Akkermansia muciniphila (A. muciniphila) negatively correlates with various diseases, including metabolic disorders, neurodegenerative disorders, and cancers, through interacting with host receptors by diverse molecules. Still, their exact metabolic capability within the nutrient-rich environment (such as in the human gut) is not fully characterized. Therefore, in the present study, we investigated the comprehensive metabolome and lipidome of A. muciniphila after supplementation of four major gut microbial nutrients: mucin, inorganic salts, bile salts, and short-chain fatty acids (SCFAs). Our results showed that mucin is the predominant driver of the different lipidomic and metabolomic profiles of A. muciniphila, and it promotes the overall growth of this bacteria. While the addition of inorganic salts, bile salts, and SCFAs was found to inhibit the growth of A. muciniphila. Interestingly, inorganic salts affected the purine metabolism in A. muciniphila cultures, while adding bile salts significantly increased the production of other bile acids and N-acyl amides. Lastly, SCFAs were identified to alter the A. muciniphila energy utilization of triglycerides, fatty acyls, and phosphatidylethanolamines. To our knowledge, this is the first study to examine the comprehensive lipidome and metabolome of A. muciniphila, which highlights the importance of nutritional impacts on the lipidome and metabolome of A. muciniphila and hence providing foundational knowledge to unveil the potential effects of A. muciniphila on host health.
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Affiliation(s)
- Huan Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Shiqi Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Li Chen
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Rui Xu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Jiangjiang Zhu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America.
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30
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Zhang N, Guo P, Zhao Y, Qiu X, Shao S, Liu Z, Gao Z. Pharmacological mechanisms of puerarin in the treatment of Parkinson's disease: An overview. Biomed Pharmacother 2024; 177:117101. [PMID: 39002442 DOI: 10.1016/j.biopha.2024.117101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/02/2024] [Accepted: 07/07/2024] [Indexed: 07/15/2024] Open
Abstract
Puerarin, a monomer of traditional Chinese medicine, is a key component of Pueraria radix. Both clinical and experimental researches demonstrated that puerarin has therapeutic effects on Parkinson's disease (PD). Puerarin's pharmacological mechanisms include: 1) Anti-apoptosis. Puerarin inhibits cell apoptosis through the phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/protein kinase B (Akt) and c-Jun N-terminal kinase (JNK) signaling pathways. Puerarin also exerts a hormone-like effect against cell apoptosis; 2) Anti-oxidative stress injury. Puerarin inhibits the Nrf2 nuclear exclusion through the GSK-3β/Fyn pathway to promote the Nrf2 accumulation in the nucleus, and then promotes the antioxidant synthesis through the Nrf2/ARE signaling pathway to protect against oxidative stress; 3) Neuroprotective effects by intervening in the ubiquitin-proteasome system (UPS) and autophagy-lysosomal pathway (ALP). Puerarin significantly enhances the activity of chaperone-mediated autophagy (CMA), which downregulates the expression of α-synuclein, reduces its accumulation, and thus improves the function of damaged neurons. Additionally, puerarin increases proteasome activity and decreases ubiquitin-binding proteins, thereby preventing toxic accumulation of intracellular proteins; 4) Alleviating inflammatory response. Puerarin inhibits the conversion of microglia to the M1 phenotype while inducing the transition of microglia to the M2 phenotype. Furthermore, puerarin promotes the secretion of anti-inflammatory factor and inhibits the expression of pro-inflammatory factors; 5) Increasing the levels of dopamine and its metabolites. Puerarin could increase the levels of dopamine, homovanillic acid (HVA) and 3,4-dihydroxyphenylacetic acid (DOPAC) in the striatum; 6) Promoting neurotrophic factor expression and neuronal repair. Puerarin increases the expression of glial cell-derived neurotrophic factor (GDNF), brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF), thereby exerting a neuroprotective effect. Moreover, the regulation of the gut microbiota by puerarin may be a potential mechanism for the treatment of PD. The current review discusses the molecular mechanisms of puerarin, which may provide insight into the active components of traditional Chinese medicine in the treatment of PD.
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Affiliation(s)
- Nianping Zhang
- Postdoctoral Mobile Station, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China; Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Peng Guo
- Department of Neurology, Jinan Third People's Hospital, Jinan, Shandong 250132, China
| | - Yan Zhao
- Department of Hand and Upper Limb Surgery, Jinan Third People's Hospital, Jinan, Shandong 250132, China
| | - Xiao Qiu
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Shuai Shao
- Department of reproductive medicine, Jingmen People's Hospital, Jingmen, Hubei 448000, China
| | - Zhenzhong Liu
- School of Public Health, North Sichuan Medical College, Nanchong, Sichuan 637100, China
| | - Zong Gao
- Department of Neurosurgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, China.
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31
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Polverino A, Troisi Lopez E, Minino R, Romano A, Miranda A, Facchiano A, Cipriano L, Sorrentino P. Brain network topological changes in inflammatory bowel disease: an exploratory study. Eur J Neurosci 2024; 60:4409-4420. [PMID: 38858102 DOI: 10.1111/ejn.16442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 06/12/2024]
Abstract
Although the aetio-pathogenesis of inflammatory bowel diseases (IBD) is not entirely clear, the interaction between genetic and adverse environmental factors may induce an intestinal dysbiosis, resulting in chronic inflammation having effects on the large-scale brain network. Here, we hypothesized inflammation-related changes in brain topology of IBD patients, regardless of the clinical form [ulcerative colitis (UC) or Crohn's disease (CD)]. To test this hypothesis, we analysed source-reconstructed magnetoencephalography (MEG) signals in 25 IBD patients (15 males, 10 females; mean age ± SD, 42.28 ± 13.15; mean education ± SD, 14.36 ± 3.58) and 28 healthy controls (HC) (16 males, 12 females; mean age ± SD, 45.18 ± 12.26; mean education ± SD, 16.25 ± 2.59), evaluating the brain topology. The betweenness centrality (BC) of the left hippocampus was higher in patients as compared with controls, in the gamma frequency band. It indicates how much a brain region is involved in the flow of information through the brain network. Furthermore, the comparison among UC, CD and HC showed statistically significant differences between UC and HC and between CD and HC, but not between the two clinical forms. Our results demonstrated that these topological changes were not dependent on the specific clinical form, but due to the inflammatory process itself. Broader future studies involving panels of inflammatory factors and metabolomic analyses on biological samples could help to monitor the brain involvement in IBD and to clarify the clinical impact.
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Affiliation(s)
- Arianna Polverino
- Institute for Diagnosis and Treatment Hermitage Capodimonte, Naples, Italy
| | - Emahnuel Troisi Lopez
- Institute of Applied Sciences and Intelligent Systems, National Research Council, Pozzuoli, Italy
| | - Roberta Minino
- Department of Motor Sciences and Wellness, University of Naples "Parthenope", Naples, Italy
| | - Antonella Romano
- Department of Motor Sciences and Wellness, University of Naples "Parthenope", Naples, Italy
| | - Agnese Miranda
- Hepato-Gastroenterology Unit, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Angela Facchiano
- Gastroenterology and Digestive Endoscopy Unit, Umberto I General Hospital, Nocera Inferiore, Italy
| | - Lorenzo Cipriano
- Department of Motor Sciences and Wellness, University of Naples "Parthenope", Naples, Italy
| | - Pierpaolo Sorrentino
- Institute of Applied Sciences and Intelligent Systems, National Research Council, Pozzuoli, Italy
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- Institut de Neurosciences des Systèmes, Aix-Marseille Université, Marseille, France
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32
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Montgomery TL, Peipert D, Krementsov DN. Modulation of multiple sclerosis risk and pathogenesis by the gut microbiota: Complex interactions between host genetics, bacterial metabolism, and diet. Immunol Rev 2024; 325:131-151. [PMID: 38717158 PMCID: PMC11338732 DOI: 10.1111/imr.13343] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system, affecting nearly 2 million people worldwide. The etiology of MS is multifactorial: Approximately 30% of the MS risk is genetic, which implies that the remaining ~70% is environmental, with a number of factors proposed. One recently implicated risk factor for MS is the composition of the gut microbiome. Numerous case-control studies have identified changes in gut microbiota composition of people with MS (pwMS) compared with healthy control individuals, and more recent studies in animal models have begun to identify the causative microbes and underlying mechanisms. Here, we review some of these mechanisms, with a specific focus on the role of host genetic variation, dietary inputs, and gut microbial metabolism, with a particular emphasis on short-chain fatty acid and tryptophan metabolism. We put forward a model where, in an individual genetically susceptible to MS, the gut microbiota and diet can synergize as potent environmental modifiers of disease risk and possibly progression, with diet-dependent gut microbial metabolites serving as a key mechanism. We also propose that specific microbial taxa may have divergent effects in individuals carrying distinct variants of MS risk alleles or other polymorphisms, as a consequence of host gene-by-gut microbiota interactions. Finally, we also propose that the effects of specific microbial taxa, especially those that exert their effects through metabolites, are highly dependent on the host dietary intake. What emerges is a complex multifaceted interaction that has been challenging to disentangle in human studies, contributing to the divergence of findings across heterogeneous cohorts with differing geography, dietary preferences, and genetics. Nonetheless, this provides a complex and individualized, yet tractable, model of how the gut microbiota regulate susceptibility to MS, and potentially progression of this disease. Thus, we conclude that prophylactic or therapeutic modulation of the gut microbiome to prevent or treat MS will require a careful and personalized consideration of host genetics, baseline gut microbiota composition, and dietary inputs.
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Affiliation(s)
- Theresa L. Montgomery
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Dan Peipert
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Dimitry N. Krementsov
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT 05405, USA
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33
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Seong HJ, Baek Y, Lee S, Jin HJ. Gut microbiome and metabolic pathways linked to sleep quality. Front Microbiol 2024; 15:1418773. [PMID: 39144221 PMCID: PMC11322573 DOI: 10.3389/fmicb.2024.1418773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 07/23/2024] [Indexed: 08/16/2024] Open
Abstract
Sleep quality is a vital determinant of human health as sleep disorders are associated with cognitive deficits, and chronic sleep deprivation is associated with a broad range of health complications. Previous studies on the association between the gut microbiome and sleep quality have been constrained by small sample sizes or have focused on specific sleep disorders, thus yielding inconsistent results. Herein, we investigated the relationship between microbial composition and sleep quality in a cohort of 159 Koreans. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), determined through a self-administered questionnaire. Gut microbiome analyses were performed using 16S rRNA amplicons. We found no direct correlation between microbial alpha diversity metrics and sleep; however, we identified differences in beta diversity among sleep quality groups (with a PSQI score > 5 indicating poor sleep quality and PSQI ≤5 indicating good sleep quality). We also found differential microbial signatures (Bacteroides, Prevotella 9, and Faecalibacterium) among the groups. Furthermore, functional metabolic pathway profiles revealed significant linear correlations of the L-arginine and L-tryptophan biosynthetic pathways as well as 4-aminobutanoate degradation with sleep status. In particular, Faecalibacterium prausnitzii, which harbors these metabolic pathways, showed differences between sleep quality groups and a linear association with sleep quality scores and was thus identified as the species most strongly associated with sleep status. This study provides a significant advance in our understanding of the relationship between gut microbiota and sleep regulation. The current findings provide a basis for further research into potential therapeutic strategies for sleep disorders targeting the gut microbiome.
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Affiliation(s)
| | | | | | - Hee-Jeong Jin
- Korean Medicine Data Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
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34
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He L, Chen K, Chen Z, Chen C, Zhou J, Shao Y, Ma J, Qiu Z, Chen Y, Zhang W. Abelmoschi Corolla polysaccharides and related metabolite ameliorates colitis via modulating gut microbiota and regulating the FXR/STAT3 signaling pathway. Int J Biol Macromol 2024; 277:134370. [PMID: 39094864 DOI: 10.1016/j.ijbiomac.2024.134370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 06/23/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Ulcerative Colitis (UC) is a chronic inflammatory disease of the intestinal tract with unknown definitive etiology. Polysaccharides are among the most important active components of Abelmoschi Corolla, exhibitings various pharmacological activities such as antioxidation and immunomodulation. However, no studies have yet reported the application of Abelmoschi Corolla Polysaccharides (ACP) in treating UC. This study aims to highlight the therapeutic efficacy of ACP in UC and reveal the underlying mechanism. The potential therapeutic effect is initially verified using a dextran sodium sulfate (DSS)-induced colitis model. 16S rRNA sequencing is performed using feces samples and untargeted metabolomics using serum samples to further reveal that ACP reprograms the dysbiosis triggered by UC progression, increases the abundance of Bacteroides spp., Blautia spp., and Parabacteroides spp. at the genus level and enriches the serum concentration of 7-ketodeoxycholic acid (7-KDA). Furthermore, using the FXR-/- mouse model, it is revealed that Farnesoid X Receptor (FXR) is a key target for ACP and the metabolite 7-KDA to block STAT3 phosphorylation by repairing the intestinal barrier to attenuate UC. Taken together, this work highlights the therapeutic potential of ACP against UC, mainly exerting its effects via modulating gut microbiota and regulating the FXR/STAT3 signaling pathway.
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Affiliation(s)
- Linhai He
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Kaidi Chen
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Zepeng Chen
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Chen Chen
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Jing Zhou
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Yifan Shao
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Jiaze Ma
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Zhengxi Qiu
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Yugen Chen
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; Department of Colorectal Surgery, Jiangsu Province Hospital of Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, PR China; Jiangsu Province Key Laboratory of Tumor Systems Biology and Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, PR China; Jiangsu Collaborative Innovation Center of Chinese Medicine in Prevention and Treatment of Tumor, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, PR China.
| | - Wei Zhang
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, PR China; Jiangsu Province Key Laboratory of Tumor Systems Biology and Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, PR China.
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35
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Zhang Y, Lu SM, Zhuang JJ, Liang LG. Advances in gut-brain organ chips. Cell Prolif 2024:e13724. [PMID: 39086147 DOI: 10.1111/cpr.13724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/02/2024] [Accepted: 07/18/2024] [Indexed: 08/02/2024] Open
Abstract
The brain and gut are sensory organs responsible for sensing, transmitting, integrating, and responding to signals from the internal and external environment. In-depth analysis of brain-gut axis interactions is important for human health and disease prevention. Current research on the brain-gut axis primarily relies on animal models. However, animal models make it difficult to study disease mechanisms due to inherent species differences, and the reproducibility of experiments is poor because of individual animal variations, which leads to a significant limitation of real-time sensory responses. Organ-on-a-chip platforms provide an innovative approach for disease treatment and personalized research by replicating brain and gut ecosystems in vitro. This enables a precise understanding of their biological functions and physiological responses. In this article, we examine the history and most current developments in brain, gut, and gut-brain chips. The importance of these systems for understanding pathophysiology and developing new drugs is emphasized throughout the review. This article also addresses future directions and present issues with the advancement and application of gut-brain-on-a-chip technologies.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Si-Ming Lu
- Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Key Laboratory of Clinical In Vitro Diagnostic Techniques, Hangzhou, China
- Institute of Laboratory Medicine, Zhejiang University, Hangzhou, China
| | - Jian-Jian Zhuang
- Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Li-Guo Liang
- Centre for Clinical Laboratory, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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36
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Yuan X, Chai J, Xu W, Zhao Y. Exploring the Potential of Probiotics and Prebiotics in Major Depression: From Molecular Function to Clinical Therapy. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10326-z. [PMID: 39078446 DOI: 10.1007/s12602-024-10326-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2024] [Indexed: 07/31/2024]
Abstract
Major depressive disorder (MDD) represents a complex and challenging mental health condition with multifaceted etiology. Recent research exploring the gut-brain axis has shed light on the potential influence of gut microbiota on mental health, offering novel avenues for therapeutic intervention. This paper reviews current evidence on the role of prebiotics and probiotics in the context of MDD treatment. Clinical studies assessing the effects of prebiotic and probiotic interventions have demonstrated promising results, showcasing improvements in depression symptoms and metabolic parameters in certain populations. Notably, prebiotics and probiotics have shown the capacity to modulate inflammatory markers, cortisol levels, and neurotransmitter pathways linked to MDD. However, existing research presents varied outcomes, underscoring the need for further investigation into specific microbial strains, dosage optimization, and long-term effects. Future research should aim at refining personalized interventions, elucidating mechanisms of action, and establishing standardized protocols to integrate these interventions into clinical practice. While prebiotics and probiotics offer potential adjunctive therapies for MDD, continued interdisciplinary efforts are vital to harnessing their full therapeutic potential and reshaping the landscape of depression treatment paradigms.
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Affiliation(s)
- Xin Yuan
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
- The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jianbo Chai
- Heilongjiang Mental Hospital, Harbin, 150036, China
| | - Wenqiang Xu
- Harbin Jiarun Hospital, Harbin, 150040, China
| | - Yonghou Zhao
- Heilongjiang Mental Hospital, Harbin, 150036, China.
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37
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Van-Wehle T, Vital M. Investigating the response of the butyrate production potential to major fibers in dietary intervention studies. NPJ Biofilms Microbiomes 2024; 10:63. [PMID: 39080292 PMCID: PMC11289085 DOI: 10.1038/s41522-024-00533-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 07/15/2024] [Indexed: 08/02/2024] Open
Abstract
Interventions involving dietary fibers are known to benefit host health. A leading contribution of gut microbiota is commonly recognized with production of short chain fatty acids (SCFA) suspected to play a key role. However, the detailed mechanisms are largely unknown, and apart from a well-described bifidogenic effect of some fibers, results for other bacterial taxa are often incongruent between studies. We performed pooled analyses of 16S rRNA gene data derived from intervention studies (n = 14) based on three fibers, namely, inulin-type fructans (ITF), resistant starch (RS), and arabinoxylan-oligosaccharides (AXOS), harmonizing the bioinformatics workflow to reveal taxa stimulated by those substrates, specifically focusing on the SCFA-production potential. The results showed an increased butyrate production potential after ITF (p < 0.05) and RS (p < 0.1) treatment via an increase in bacteria exhibiting the enzyme butyryl-CoA:acetate CoA-transferase (but) that was governed by Faecalibacterium, Anaerostipes (ITF) and Agathobacter (RS) respectively. AXOS did not promote an increase in butyrate producers, nor were pathways linked to propionate production stimulated by any intervention. A bifidogenic effect was observed for AXOS and ITF, which was only partly associated with the behavior of but-containing bacteria and largely represented a separate response. Low and high Ruminococcus abundances pre-intervention for ITF and RS, respectively, promoted an increase in but-containing taxa (p < 0.05) upon interventions, whereas initial Prevotella abundance was negatively associated with responses of butyrate producers for both fibers. Collectively, our data demonstrate targeted stimulation of specific taxa by individual fibers increasing the potential to synthesize butyrate, where gut microbiota composition pre-intervention strongly controlled outcomes.
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Affiliation(s)
- Thao Van-Wehle
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Marius Vital
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.
- German Center for Infection Research (DZIF), partner site Hannover-Braunschweig, Hannover, Germany.
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38
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Lai MY, Chang YH, Lee CC. The impact of gut microbiota on morbidities in preterm infants. Kaohsiung J Med Sci 2024. [PMID: 39073226 DOI: 10.1002/kjm2.12878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/30/2024] Open
Abstract
The gut microbiota undergoes substantial development from birth, and its development in the initial years of life has a potentially lifelong effect on the health of the individual. However, various factors can disrupt the development of the gut microbiota, leading to a condition known as dysbiosis, particularly in preterm infants. Current studies involving adults have suggested that the gut microbiota not only influences the gut but also has multidimensional effects on remote organs; these pathways are often referred to as the gut-organ axis. Imbalance of the gut microbiota may lead to the development of multiple diseases. Recent studies have revealed that gut dysbiosis in preterm infants may cause several acute morbidities-such as necrotizing enterocolitis, late-onset sepsis, bronchopulmonary dysplasia, and retinopathy of prematurity-and it may also influence long-term outcomes including neurodevelopment and somatic growth. This review mainly presents the existing evidence regarding the relationships between the gut microbiota and these morbidities in preterm infants and explores the role of the gut-organ axis in these morbidities. This paper thus offers insights into the future perspectives on microbiota interventions for promoting the health of preterm infants.
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Affiliation(s)
- Mei-Yin Lai
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yin-Hsi Chang
- Department of Ophthalmology, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chien-Chung Lee
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, School of Medicine, Chang Gung University, Taoyuan, Taiwan
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39
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Spencer KD, Bline H, Chen HJ, Verosky BG, Hilt ME, Jaggers RM, Gur TL, Mathé EA, Bailey MT. Modulation of anxiety-like behavior in galactooligosaccharide-fed mice: A potential role for bacterial tryptophan metabolites and reduced microglial reactivity. Brain Behav Immun 2024; 121:229-243. [PMID: 39067620 DOI: 10.1016/j.bbi.2024.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 07/02/2024] [Accepted: 07/20/2024] [Indexed: 07/30/2024] Open
Abstract
Prebiotic galactooligosaccharides (GOS) reduce anxiety-like behaviors in mice and humans. However, the biological pathways behind these behavioral changes are not well understood. To begin to study these pathways, we utilized C57BL/6 mice that were fed a standard diet with or without GOS supplementation for 3 weeks prior to testing on the open field. After behavioral testing, colonic contents and serum were collected for bacteriome (16S rRNA gene sequencing, colonic contents only) and metabolome (UPLC-MS, colonic contents and serum data) analyses. As expected, GOS significantly reduced anxiety-like behavior (i.e., increased time in the center) and decreased cytokine gene expression (Tnfa and Ccl2) in the prefrontal cortex. Notably, time in the center of the open field was significantly correlated with serum methyl-indole-3-acetic acid (methyl-IAA). This metabolite is a methylated form of indole-3-acetic acid (IAA) that is derived from bacterial metabolism of tryptophan. Sequencing analyses showed that GOS significantly increased Lachnospiraceae UCG006 and Akkermansia; these taxa are known to metabolize both GOS and tryptophan. To determine the extent to which methyl-IAA can affect anxiety-like behavior, mice were intraperitoneally injected with methyl-IAA. Mice given methyl-IAA had a reduction in anxiety-like behavior in the open field, along with lower Tnfa in the prefrontal cortex. Methyl-IAA was also found to reduce TNF-α (as well as CCL2) production by LPS-stimulated BV2 microglia. Together, these data support a novel pathway through which GOS reduces anxiety-like behaviors in mice and suggests that the bacterial metabolite methyl-IAA reduces microglial cytokine and chemokine production, which in turn reduces anxiety-like behavior.
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Affiliation(s)
- Kyle D Spencer
- Graduate Partnership Program, National Center for Advancing Translational Sciences, NIH, Rockville, MD, USA; Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA; Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Heather Bline
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Helen J Chen
- Medical Scientist Training Program, The Ohio State University, Columbus, OH, USA; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Branden G Verosky
- Medical Scientist Training Program, The Ohio State University, Columbus, OH, USA; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Miranda E Hilt
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA; Biomedical Sciences Graduate Program, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Robert M Jaggers
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Tamar L Gur
- Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Ewy A Mathé
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, NIH, Rockville, MD, USA
| | - Michael T Bailey
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA; Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Oral and GI Research Affinity Group, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, USA.
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40
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Zhao R. Can exercise benefits be harnessed with drugs? A new way to combat neurodegenerative diseases by boosting neurogenesis. Transl Neurodegener 2024; 13:36. [PMID: 39049102 PMCID: PMC11271207 DOI: 10.1186/s40035-024-00428-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024] Open
Abstract
Adult hippocampal neurogenesis (AHN) is affected by multiple factors, such as enriched environment, exercise, ageing, and neurodegenerative disorders. Neurodegenerative disorders can impair AHN, leading to progressive neuronal loss and cognitive decline. Compelling evidence suggests that individuals engaged in regular exercise exhibit higher production of proteins that are essential for AHN and memory. Interestingly, specific molecules that mediate the effects of exercise have shown effectiveness in promoting AHN and cognition in different transgenic animal models. Despite these advancements, the precise mechanisms by which exercise mimetics induce AHN remain partially understood. Recently, some novel exercise molecules have been tested and the underlying mechanisms have been proposed, involving intercommunications between multiple organs such as muscle-brain crosstalk, liver-brain crosstalk, and gut-brain crosstalk. In this review, we will discuss the current evidence regarding the effects and potential mechanisms of exercise mimetics on AHN and cognition in various neurological disorders. Opportunities, challenges, and future directions in this research field are also discussed.
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Affiliation(s)
- Renqing Zhao
- College of Physical Education, Yangzhou University, 88 South Daxue Road, Yangzhou, 225009, China.
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41
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Sha Y, Yu J, Xia D, Zhang Y, Liu J, Wang H. Remodeling of intestinal bacterial community and metabolome of Dezhou donkey induced by corn silage. Sci Rep 2024; 14:17032. [PMID: 39043883 PMCID: PMC11266621 DOI: 10.1038/s41598-024-67869-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 07/16/2024] [Indexed: 07/25/2024] Open
Abstract
Corn silage can usually improve the growth performance and the meat quality of ruminants, and subsequently increase the economic benefits of farming. However, little is known about the effects of corn silage on donkeys. This experiment investigated the effects of corn silage on the weight gain, gut microbiota and metabolites of Dezhou donkeys. A total of 24 Dezhou donkeys, sourced from the same farm and exhibiting similar age and average body weight, were utilized in this experiment. The donkeys were allocated into two groups: a control group receiving a basic diet and a test group receiving a basic diet supplemented with 30% corn silage. Each group comprised 12 donkeys, evenly distributed by sex (6 males and 6 females). The experiment lasted for 100 days. Results showed that dietary supplementation with corn silage significantly (P < 0.05) improved the weight gain of Dezhou donkeys at the end of the experiment. And the supplementation of corn silage in the diet significantly altered the bacterial community composition and metabolome in the feces of the donkeys. Notably, the relative abundance ratio of Bacteroidetes to Firmicutes was 0.76 in the control group compared to 0.96 in the test group. Furthermore, members of the Bacteroidetes and Firmicutes phyla were associated with differentiated metabolites enriched in the arachidonic acid metabolism and pentose and glucuronate interconversion pathways, both of which have been reported to be related to animal growth. Specifically, Bacteroidia exhibited statistically (P < 0.05) positive correlations with 15S-HpETE, while Bacilli demonstrated statistically (P < 0.05) negative correlations with D-Xylulose. The findings of this study can advance our mechanistic understanding of the remodeling of intestinal microbiota and metabolome induced by corn silage, as well as their relationships with the growth performance of Dezhou donkeys, which in turn favor the improvement in nutrition of Dezhou donkeys.
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Affiliation(s)
- Yujie Sha
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
- International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou, 253023, China
| | - Jiafeng Yu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China.
- International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou, 253023, China.
| | - Dong Xia
- Dezhou Animal Husbandry and Veterinary Career Development Center (Dezhou Animal Disease Prevention and Control Center), Dezhou, 253023, China
| | - Yan Zhang
- Institute of Crop Germplasm Resources, Shandong Academy of Agriculture Sciences, Jinan, 250100, China
| | - Jian Liu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
- International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou, 253023, China
| | - Huisong Wang
- International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou, 253023, China
- Belgorod College of Food Sciences, Dezhou University, Dezhou, 253023, China
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42
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Liu C, Chen J, Che Y, He L, Luo S, Yang CS, Chen T. Interactive Effects of Arabinoxylan Oligosaccharides and Green Tea Polyphenols on Obesity Management and Gut Microbiota Modulation in High-Fat Diet-Fed Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16237-16249. [PMID: 38984620 DOI: 10.1021/acs.jafc.4c02022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Dietary fiber and polyphenols have been shown to possess antiobesity properties. However, their combined effects need further investigation. This study investigated the individual and combined effects of arabinoxylan oligosaccharides (AXOS) from rice bran and green tea polyphenols (GTP) in high-fat diet-induced obese mice. We found that the combination of AXOS and GTP (A + G) significantly reduced overall fat mass and improved lipid profiles, although the effects were not synergistic. AXOS and GTP regulated lipid metabolism in different tissues and exhibited counteractive effects on gut microbiota. AXOS decreased α diversity and promoted Bifidobacterium, with GTP counteracting these effects. In vitro fermentation confirmed that GTP counteracted AXOS-induced microbiota changes in a dose-dependent manner. This study highlights the potential of tailored combinations of dietary fiber and polyphenols to treat obesity while considering their complex microbial interplay.
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Affiliation(s)
- Chengmei Liu
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
| | - Jianjian Chen
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
| | - Yingjuan Che
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
| | - Li He
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
| | - Shunjing Luo
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 164 Frelinghuysen Road, Piscataway, New Jersey 08854, United States
| | - Tingting Chen
- State Key Laboratory of Food Science & Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang 330031, China
- International Institute of Food Innovation Co., Ltd., Nanchang University, luozhu Road, Nanchang 330200, China
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43
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Morys J, Małecki A, Nowacka-Chmielewska M. Stress and the gut-brain axis: an inflammatory perspective. Front Mol Neurosci 2024; 17:1415567. [PMID: 39092201 PMCID: PMC11292226 DOI: 10.3389/fnmol.2024.1415567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 06/24/2024] [Indexed: 08/04/2024] Open
Abstract
The gut-brain axis (GBA) plays a dominant role in maintaining homeostasis as well as contributes to mental health maintenance. The pathways that underpin the axis expand from macroscopic interactions with the nervous system, to the molecular signals that include microbial metabolites, tight junction protein expression, or cytokines released during inflammation. The dysfunctional GBA has been repeatedly linked to the occurrence of anxiety- and depressive-like behaviors development. The importance of the inflammatory aspects of the altered GBA has recently been highlighted in the literature. Here we summarize current reports on GBA signaling which involves the immune response within the intestinal and blood-brain barrier (BBB). We also emphasize the effect of stress response on altering barriers' permeability, and the therapeutic potential of microbiota restoration by probiotic administration or microbiota transplantation, based on the latest animal studies. Most research performed on various stress models showed an association between anxiety- and depressive-like behaviors, dysbiosis of gut microbiota, and disruption of intestinal permeability with simultaneous changes in BBB integrity. It could be postulated that under stress conditions impaired communication across BBB may therefore represent a significant mechanism allowing the gut microbiota to affect brain functions.
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Affiliation(s)
| | | | - Marta Nowacka-Chmielewska
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
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44
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Li J, Zhao J, Tian C, Dong L, Kang Z, Wang J, Zhao S, Li M, Tong X. Mechanisms of regulation of glycolipid metabolism by natural compounds in plants: effects on short-chain fatty acids. Nutr Metab (Lond) 2024; 21:49. [PMID: 39026248 PMCID: PMC11256480 DOI: 10.1186/s12986-024-00829-5] [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: 05/15/2024] [Accepted: 07/10/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Natural compounds can positively impact health, and various studies suggest that they regulate glucose‒lipid metabolism by influencing short-chain fatty acids (SCFAs). This metabolism is key to maintaining energy balance and normal physiological functions in the body. This review explores how SCFAs regulate glucose and lipid metabolism and the natural compounds that can modulate these processes through SCFAs. This provides a healthier approach to treating glucose and lipid metabolism disorders in the future. METHODS This article reviews relevant literature on SCFAs and glycolipid metabolism from PubMed and the Web of Science Core Collection (WoSCC). It also highlights a range of natural compounds, including polysaccharides, anthocyanins, quercetins, resveratrols, carotenoids, and betaines, that can regulate glycolipid metabolism through modulation of the SCFA pathway. RESULTS Natural compounds enrich SCFA-producing bacteria, inhibit harmful bacteria, and regulate operational taxonomic unit (OTU) abundance and the intestinal transport rate in the gut microbiota to affect SCFA content in the intestine. However, most studies have been conducted in animals, lack clinical trials, and involve fewer natural compounds that target SCFAs. More research is needed to support the conclusions and to develop healthier interventions. CONCLUSIONS SCFAs are crucial for human health and are produced mainly by the gut microbiota via dietary fiber fermentation. Eating foods rich in natural compounds, including fruits, vegetables, tea, and coarse fiber foods, can hinder harmful intestinal bacterial growth and promote beneficial bacterial proliferation, thus increasing SCFA levels and regulating glucose and lipid metabolism. By investigating how these compounds impact glycolipid metabolism via the SCFA pathway, novel insights and directions for treating glucolipid metabolism disorders can be provided.
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Affiliation(s)
- Jiarui Li
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Jinyue Zhao
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Chuanxi Tian
- Beijing University of Chinese Medicine, Beijing, China
| | - Lishuo Dong
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Zezheng Kang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Jingshuo Wang
- The Affiliated Hospital, Changchun University of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Shuang Zhao
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Min Li
- Research Laboratory of Molecular Biology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing, China.
| | - Xiaolin Tong
- Guang'anmen Hospital, Academician of Chinese Academy of Sciences, China Academy of Traditional Chinese Medical Sciences, Beijing, China.
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45
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Zhang KK, Yang JZ, Cheng CH, Wan JY, Chen YC, Zhou HQ, Zheng DK, Lan ZX, You QH, Wang Q, Sun J. Short-chain fatty acids mitigate Methamphetamine-induced hepatic injuries in a Sigma-1 receptor-dependent manner. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116538. [PMID: 38833980 DOI: 10.1016/j.ecoenv.2024.116538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/08/2024] [Accepted: 05/31/2024] [Indexed: 06/06/2024]
Abstract
Methamphetamine (Meth) is a potent psychostimulant with well-established hepatotoxicity. Gut microbiota-derived short-chain fatty acids (SCFAs) have been reported to yield beneficial effects on the liver. In this study, we aim to further reveal the mechanisms of Meth-induced hepatic injuries and investigate the potential protective effects of SCFAs. Herein, mice were intraperitoneally injected with 15 mg/kg Meth to induce hepatic injuries. The composition of fecal microbiota and SCFAs was profiled using 16 S rRNA sequencing and Gas Chromatography/Mass Spectrometry (GC/MS) analysis, respectively. Subsequently, SCFAs supplementation was performed to evaluate the protective effects against hepatic injuries. Additionally, Sigma-1 receptor knockout (S1R-/-) mice and fluvoxamine (Flu), an agonist of S1R, were introduced to investigate the mechanisms underlying the protective effects of SCFAs. Our results showed that Meth activated S1R and induced hepatic autophagy, inflammation, and oxidative stress by stimulating the MAPK/ERK pathway. Meanwhile, Meth disrupted SCFAs product-related microbiota, leading to a reduction in fecal SCFAs (especially Acetic acid and Propanoic acid). Accompanied by the optimization of gut microbiota, SCFAs supplementation normalized S1R expression and ameliorated Meth-induced hepatic injuries by repressing the MAPK/ERK pathway. Effectively, S1R knockout repressed Meth-induced activation of the MAPK/ERK pathway and further ameliorated hepatic injuries. Finally, the overexpression of S1R stimulated the MAPK/ERK pathway and yielded comparable adverse phenotypes to Meth administration. These findings suggest that Meth-induced hepatic injuries relied on the activation of S1R, which could be alleviated by SCFAs supplementation. Our study confirms the crucial role of S1R in Meth-induced hepatic injuries for the first time and provides a potential preemptive therapy.
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Affiliation(s)
- Kai-Kai Zhang
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China; Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jian-Zheng Yang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Chang-Hao Cheng
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jia-Yuan Wan
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yu-Chuan Chen
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - He-Qi Zhou
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - De-Kai Zheng
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Zhi-Xian Lan
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qiu-Hong You
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qi Wang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Jian Sun
- State Key Laboratory of Organ Failure Research; Key Laboratory of Infectious Diseases Research in South China, Ministry of Education; Guangdong Provincial Key Laboratory of Viral Hepatitis Research; Guangdong Provincial Clinical Research Center for Viral Hepatitis; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Liu Z, Luo S, Liu C, Hu X. Resistant starch and tannic acid synergistically ameliorated dextran sulfate sodium-induced ulcerative colitis, particularly in the distal colon. Food Funct 2024; 15:7553-7566. [PMID: 38932628 DOI: 10.1039/d4fo00531g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
We previously confirmed that tannic acid could delay the metabolism of resistant starch in vitro, which suggested that tannic acid might deliver resistant starch to the distal colon in vivo. Accordingly, co-supplementation of resistant starch and tannic acid might be beneficial for keeping the distal colon healthy. Thus, this study compared the effects of resistant starch, tannic acid and their mixtures on dextran sulfate sodium (DSS)-induced ulcerative colitis in mice. It was found that the mixtures had a more profound effect on ameliorating DSS-induced ulcerative colitis than resistant starch or tannic acid. In particular, the mixtures reversed the histology damage of the distal colon induced by DSS, while resistant starch or tannic acid alone did not. The mixtures also had a stronger ability to resist oxidative stress and inhibit inflammation in the distal colon. These results suggested that resistant starch and tannic acid synergistically alleviated DSS-induced ulcerative colitis, particularly in the distal colon. On the other hand, DSS decreased the production of short-chain fatty acids and induced significant microbial disorder, while the administration of resistant starch, tannic acid and their mixtures reversed the above shifts caused by DSS. In particular, the mixtures exhibited stronger prebiotic activity, as indicated by the microbial composition and production of short-chain fatty acids. Therefore, it was inferred that tannic acid delivered resistant starch to the distal colon of mice, and thus the mixtures had stronger prebiotic activity. As a result, the mixtures effectively alleviated ulcerative colitis in the whole colon.
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Affiliation(s)
- Zijun Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- International Institute of Food Innovation Co., Ltd, Nanchang 330200, Jiangxi, China
| | - Shunjing Luo
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- International Institute of Food Innovation Co., Ltd, Nanchang 330200, Jiangxi, China
| | - Chengmei Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- International Institute of Food Innovation Co., Ltd, Nanchang 330200, Jiangxi, China
| | - Xiuting Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- International Institute of Food Innovation Co., Ltd, Nanchang 330200, Jiangxi, China
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Mir HD, Yang Q, Maximin E, Montardy Q, Ji S, Cheng Q, Shan X, Wang L, Naudon L, Rabot S, Li L. Indole induces anxiety-like behaviour in mice mediated by brainstem locus coeruleus activation. Neurobiol Dis 2024; 200:106606. [PMID: 39019292 DOI: 10.1016/j.nbd.2024.106606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 07/06/2024] [Accepted: 07/12/2024] [Indexed: 07/19/2024] Open
Abstract
The gut microbiota produces metabolites that enrich the host metabolome and play a part in host physiology, including brain functions. Yet the biological mediators of this gut-brain signal transduction remain largely unknown. In this study, the possible role of the gut microbiota metabolite indole, originating from tryptophan, was investigated. Oral administration of indole to simulate microbial overproduction of this compound in the gut consistently led to impaired locomotion and anxiety-like behaviour in both C3H/HeN and C57BL/6J mice. By employing c-Fos protein expression mapping in mice, we observed a noticeable increase in brain activation within the dorsal motor nucleus of the vagus nerve (DMX) and the locus coeruleus (LC) regions in a dose-dependent manner. Further immune co-labelling experiments elucidated that the primary cells activated within the LC were tyrosine hydroxylase positive. To delve deeper into the mechanistic aspects, we conducted chemogenetic activation experiments on LC norepinephrine neurons with two doses of clozapine N-oxide (CNO). Low dose of CNO at 0.5 mg/kg induced no change in locomotion but anxiety-like behaviour, while high dose of CNO at 2 mg/kg resulted in locomotion impairment and anxiety-like behaviour. These findings support the neuroactive roles of indole in mediating gut-brain communication. It also highlights the LC as a novel hub in the gut-brain axis, encouraging further investigations.
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Affiliation(s)
- Hayatte-Dounia Mir
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Qingning Yang
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Elise Maximin
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Quentin Montardy
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Shuqin Ji
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Qi Cheng
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Xiaochun Shan
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Liping Wang
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Laurent Naudon
- Université Paris-Saclay, INRAE, AgroParisTech, CNRS, Micalis Institute, Jouy-en-Josas, France
| | - Sylvie Rabot
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.
| | - Lei Li
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Brain Connectome and Behaviour, CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China.
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Abdalla MMI. Insulin resistance as the molecular link between diabetes and Alzheimer's disease. World J Diabetes 2024; 15:1430-1447. [PMID: 39099819 PMCID: PMC11292327 DOI: 10.4239/wjd.v15.i7.1430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/08/2024] [Accepted: 05/06/2024] [Indexed: 07/08/2024] Open
Abstract
Diabetes mellitus (DM) and Alzheimer's disease (AD) are two major health concerns that have seen a rising prevalence worldwide. Recent studies have indicated a possible link between DM and an increased risk of developing AD. Insulin, while primarily known for its role in regulating blood sugar, also plays a vital role in protecting brain functions. Insulin resistance (IR), especially prevalent in type 2 diabetes, is believed to play a significant role in AD's development. When insulin signalling becomes dysfunctional, it can negatively affect various brain functions, making individuals more susceptible to AD's defining features, such as the buildup of beta-amyloid plaques and tau protein tangles. Emerging research suggests that addressing insulin-related issues might help reduce or even reverse the brain changes linked to AD. This review aims to explore the rela-tionship between DM and AD, with a focus on the role of IR. It also explores the molecular mechanisms by which IR might lead to brain changes and assesses current treatments that target IR. Understanding IR's role in the connection between DM and AD offers new possibilities for treatments and highlights the importance of continued research in this interdisciplinary field.
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Affiliation(s)
- Mona Mohamed Ibrahim Abdalla
- Department of Human Biology, School of Medicine, International Medical University, Bukit Jalil 57000, Kuala Lumpur, Malaysia
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Zhang H, Zu Q, Zhang J, Liu S, Zhang G, Chang X, Li X. Soluble Dietary Fiber of Hawthorn Relieves Constipation Induced by Loperamide Hydrochloride by Improving Intestinal Flora and Inflammation, Thereby Regulating the Aquaporin Ion Pathway in Mice. Foods 2024; 13:2220. [PMID: 39063304 PMCID: PMC11275587 DOI: 10.3390/foods13142220] [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: 06/04/2024] [Revised: 07/11/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Dietary fiber can be fermented and utilized by gut microbiota to reshape the gut microbiota, thereby alleviating constipation. This experiment mainly studied the physicochemical functions of hawthorn soluble dietary fiber (HSDF)and its effect and mechanism in alleviating constipation in mice. Forty-five mice were divided into blank control group C, model group M, positive control HS group, low-dose LHSDF group (1 g/kg/bw), and high-dose HHSDF group (2 g/kg/bw). The mice were modeled at a dose of 10 mg/kg/bw of loperamide hydrochloride for 7 days, while the remaining groups were orally administered an equal amount of distilled water and test samples. After continuous gavage for 45 days we performed a bowel movement test, and then continued gavage for 7 days and performed a small intestine propulsion test and indicator testing. The results showed that HSDF is mainly composed of galacturonic acid, belonging to the type I crystal structure, with a loose surface resembling a snowflake, a small molecular weight, and strong water-holding and antioxidant abilities. Animal experiments showed that compared with group M, HSDF significantly upregulated AQP3 and AQP8 by 52.67% and 164.54%, respectively, and downregulated AQP9 protein expression by 45.88%, thereby promoting intestinal peristalsis. It can also alleviate constipation by increasing the levels of excitatory hormones such as MTL, GAS, and SP in the gastrointestinal tract, and reducing the levels of inhibitory hormones such as SS, NO, and MDA. In addition, HSDF can reduce the levels of inflammatory factors such as IL-6 and PL-1 β, increase the content of various short-chain fatty acids, alleviate intestinal inflammation, maintain intestinal integrity, and promote defecation. It can also promote the growth of probiotics such as Bacteroides, inhibit the growth of harmful bacteria such as Bifidobacterium and Lactobacillus, and alter the diversity of gut microbiota.
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Affiliation(s)
- Henghui Zhang
- Department of Environment and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China
- College of Food Science & Technology, Hebei Yanshan Special Industrial Technology Research Institute, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Qixin Zu
- College of Food Science & Technology, Hebei Yanshan Special Industrial Technology Research Institute, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Jiancai Zhang
- College of Food Science & Technology, Hebei Yanshan Special Industrial Technology Research Institute, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Suwen Liu
- College of Food Science & Technology, Hebei Yanshan Special Industrial Technology Research Institute, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Xuedong Chang
- College of Food Science & Technology, Hebei Yanshan Special Industrial Technology Research Institute, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Xiaojun Li
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China
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50
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Luo X, Zhou W, Wan D, Peng J, Liao R, Su B. Association between amoxicillin administration and outcomes in critically ill patients with acute kidney injury. Front Pharmacol 2024; 15:1409654. [PMID: 39076586 PMCID: PMC11284156 DOI: 10.3389/fphar.2024.1409654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 06/14/2024] [Indexed: 07/31/2024] Open
Abstract
Purpose This study assessed the effect of amoxicillin on outcomes in intensive care unit (ICU) patients with acute kidney injury (AKI), focusing on mortality rates and acute kidney disease (AKD) occurrence. Materials and Methods We conducted a retrospective cohort analysis utilizing data from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. The study included intensive care unit patients diagnosed with AKI to assess the effects of post-admission amoxicillin administration on 30-day and 90-day mortality rates and acute kidney disease incidence. We employed Cox proportional hazards models, propensity score matching, and inverse probability of treatment weighting to control for potential confounders. Results Among 24,650 AKI patients, 676 (2.7%) received amoxicillin. The results indicated significantly lower mortality rates at 30 days (hazard ratio [HR] 0.54, 95% confidence interval [CI] 0.42-0.69) and 90 days (HR 0.64, 95% CI 0.52-0.77) in the amoxicillin group compared to non-recipients. Additionally, amoxicillin administration was associated with a reduced incidence of AKD (HR 0.49, 95% CI 0.36-0.65) but resulted in a modestly increased length of hospital stay (mean difference [MD] 1.95 days, 95% CI 1.15-2.75). A dose‒response relationship was evident, with higher doses (>875 mg) further decreasing mortality rates. Subgroup analysis revealed consistent benefits across most patient groups. Conclusion Amoxicillin administration following ICU admission in patients with AKI was associated with improved survival rates and a lower incidence of AKD, highlighting its potential as a therapeutic measure for AKI management.
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Affiliation(s)
- Xinyao Luo
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Weijian Zhou
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Dingyuan Wan
- Department of Intensive Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Peng
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Ruoxi Liao
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Baihai Su
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China
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