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Böswald LF, Popper B, Matzek D, Neuhaus K, Wenderlein J. Characterization of the gastrointestinal microbiome of the Syrian hamster (Mesocricetus auratus) and comparison to data from mice. FEBS Open Bio 2024. [PMID: 39097990 DOI: 10.1002/2211-5463.13869] [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: 01/09/2024] [Revised: 06/21/2024] [Accepted: 07/17/2024] [Indexed: 08/06/2024] Open
Abstract
Syrian hamsters (Mesocricetus auratus) have been increasingly used as rodent models in recent years, especially for SARS-CoV-2 since the pandemic. However, the physiology of this animal model is not yet well-understood, even less when considering the digestive tract. Generally, the gastrointestinal microbiome influences the immune system, drug metabolism, and vaccination efficacy. However, a detailed understanding of the gastrointestinal microbiome of hamsters is missing. Therefore, we analyzed 10 healthy 11-week-old RjHan:AURA hamsters fed a pelleted standard diet. Their gastrointestinal content was sampled (i.e., forestomach, glandular stomach, ileum, cecum, and colon) and analyzed using 16S rRNA gene amplicon sequencing. Results displayed a distinct difference in the bacterial community before and after the cecum, possibly due to the available nutrients and digestive functions. Next, we compared hamsters with the literature data of young-adult C57BL/6J mice, another important animal model. We sampled the same gastrointestinal regions and analyzed the differences in the microbiome between both rodents. Surprisingly, we found strong differences in their specific gastrointestinal bacterial communities. For instance, Lactobacillaceae were more abundant in hamsters' forestomach and ileum, while Muribaculaceae dominated in the mouse forestomach and ileum. Similarly, in mouse cecum and colon, Muribaculaceae were dominant, while in hamsters, Lachnospiraceae and Erysipelotrichaceae dominated the bacterial community. Molecular strains of Muribaculaceae in both rodent species displayed some species specificity. This comparison allows a better understanding of the suitability of the Syrian hamster as an animal model, especially regarding its comparability to other rodent models. Thereby, this work contributes to the characterization of the hamster model and allows better experimental planning.
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Affiliation(s)
- Linda F Böswald
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Bastian Popper
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Dana Matzek
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Klaus Neuhaus
- Core Facility Microbiome, ZIEL Institute for Food & Health, Technical University of Munich, Freising, Germany
| | - Jasmin Wenderlein
- Chair for Bacteriology and Mycology, Department of Veterinary Sciences, Faculty of Veterinary Medicine, Institute for Infectious Diseases and Zoonoses, LMU Munich, Oberschleißheim, Germany
- Department for Biological Safety, Federal Institute for Risk Assessment, Berlin, Germany
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Xu L, Yu Q, Ma L, Su T, Zhang D, Yao D, Li Z. In vitro simulated fecal fermentation of mixed grains on short-chain fatty acid generation and its metabolized mechanism. Food Res Int 2023; 170:112949. [PMID: 37316043 DOI: 10.1016/j.foodres.2023.112949] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 06/16/2023]
Abstract
In vitro simulated digestion and fecal fermentation were performed to investigate the influence of mixed grains on gut microbes. In addition, the key metabolic pathways and enzymes associated with short-chain fatty acids (SCFAs) were explored. The mixed grains exhibited an observable regulatory effect on the composition and metabolism of intestinal microorganisms, especially in probiotics, such as Bifidobacterium spp., Lactobacillus spp., and Faecalibacterium spp. WR (wheat + rye), WB (wheat + highland barley) and WO (wheat + oats) tended to generate lactate and acetate, which are related to Sutterella, Staphylococcus, etc. WQ (wheat + quinoa) induced high propionate and butyrate accumulation by consuming lactate and acetate, mainly through Roseburia inulinivorans, Coprococcus catus and Anaerostipes sp., etc. Moreover, bacteria enriched in different mixed grain groups regulated the expression of pivotal enzymes in metabolic pathways and then affected the generation of SCFAs. These results provide new knowledge on the characteristics of intestinal microbial metabolism in different mixed grain substrates.
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Affiliation(s)
- Lei Xu
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
| | - Qiaoru Yu
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
| | - Lixue Ma
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
| | - Tingting Su
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
| | - Dongjie Zhang
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China; Heilongjiang Engineering Research Center for Coarse Cereals Processing and Quality Safety, Daqing 163319, Heilongjiang, China; Key Laboratory of Agro-Products Processing and Quality Safety of Heilongjiang Province, Daqing 163319, Heilongjiang, China; National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
| | - Di Yao
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China.
| | - Zhijiang Li
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China; Heilongjiang Engineering Research Center for Coarse Cereals Processing and Quality Safety, Daqing 163319, Heilongjiang, China; Key Laboratory of Agro-Products Processing and Quality Safety of Heilongjiang Province, Daqing 163319, Heilongjiang, China.
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Gan L, Han J, Li C, Tang J, Wang X, Ma Y, Chen Y, Xiao D, Guo X. Tibetan highland barley fiber improves obesity and regulates gut microbiota in high-fat diet-fed mice. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Li S, Cai M, Wang Q, Yuan Z, Li R, Wang C, Sun Y. Effect of long-term exposure to dyeing wastewater treatment plant effluent on growth and gut microbiota of adult zebrafish (Danio rerio). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:53674-53684. [PMID: 36864334 DOI: 10.1007/s11356-023-26167-2] [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: 07/04/2022] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
Strict standards have been put forward for the treatment and discharge of dyeing wastewater worldwide. However, there are still traces amount of pollutants, especially emerging pollutants in dyeing wastewater treatment plant (DWTP) effluent. Few studies have focused on the chronic biological toxicity effect and mechanism of DWTP effluent. In this study, 3-month chronic compound toxic effects were investigated by the exposure of DWTP effluent using adult zebrafish. Significantly higher mortality and fatness and significantly lower body weight and body length were found in the treatment group. In addition, long-term exposure to DWTP effluent also obviously reduced liver-body weight ratio of zebrafish, causing abnormal liver development of zebrafish. Moreover, DWTP effluent led to obvious changes in the gut microbiota and microbial diversity of zebrafish. At phylum level, significantly higher of Verrucomicrobia but lower Tenericutes, Actinobacteria, and Chloroflexi were found in the control group. At genus level, the treatment group had significantly higher abundance of Lactobacillus, but significantly lower abundance of Akkermansia, Prevotella, Bacteroides, and Sutterella. These results suggested that long-term exposure to DWTP effluent led to imbalance of gut microbiota in zebrafish. In general, this research indicated that DWTP effluent pollutants could result in negative health outcomes to aquatic organisms.
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Affiliation(s)
- Shuangshuang Li
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
- Key Laboratory of Environment Controlled Aquaculture (Dalian Ocean University) Ministry of Education, Dalian, 116023, China
| | - Mingcan Cai
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Qing Wang
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Zixi Yuan
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
| | - Ruixuan Li
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
| | - Chun Wang
- Key Laboratory of Environment Controlled Aquaculture (Dalian Ocean University) Ministry of Education, Dalian, 116023, China.
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China.
| | - Yingxue Sun
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
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Ilyés T, Silaghi CN, Crăciun AM. Diet-Related Changes of Short-Chain Fatty Acids in Blood and Feces in Obesity and Metabolic Syndrome. BIOLOGY 2022; 11:1556. [PMID: 36358258 PMCID: PMC9687917 DOI: 10.3390/biology11111556] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 09/13/2023]
Abstract
Obesity-related illnesses are one of the leading causes of death worldwide. Metabolic syndrome has been associated with numerous health issues. Short-chain fatty acids (SCFAs) have been shown to have multiple effects throughout the body, both directly as well as through specific G protein-coupled receptors. The main SCFAs produced by the gut microbiota are acetate, propionate, and butyrate, which are absorbed in varying degrees from the large intestine, with some acting mainly locally and others systemically. Diet has the potential to influence the gut microbial composition, as well as the type and amount of SCFAs produced. High fiber-containing foods and supplements increase the production of SCFAs and SCFA-producing bacteria in the gut and have been shown to have bodyweight-lowering effects. Dietary supplements, which increase SCFA production, could open the way for novel approaches to weight loss interventions. The aim of this review is to analyze the variations of fecal and blood SCFAs in obesity and metabolic syndrome through a systematic search and analysis of existing literature.
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Affiliation(s)
| | - Ciprian N. Silaghi
- Department of Molecular Sciences, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400012 Cluj-Napoca, Romania
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Cui Z, Li J, Zhen Y, Fan P, Du G. The Effect of Whole-Grain Diet on the Gut Microbiota of the Elderly Individuals. Front Nutr 2022; 9:919838. [PMID: 35832054 PMCID: PMC9273149 DOI: 10.3389/fnut.2022.919838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/31/2022] [Indexed: 11/20/2022] Open
Abstract
A whole-grain (WG) diet affects human health in multiple ways. However, the effect of WG on the gut microbiota of the elderly individuals is still largely unknown. In this study, WG did not affect the microbial α-diversity but had a profound impact on the microbes' abundance in the elderly individuals. WG increased the abundance of Verrucomicrobia and decreased the abundance of Firmicutes. The prediction of microbial function showed that glucose metabolism and lipid metabolism were inhibited. In addition, the effects of WG on the gut microbiota of normal-weight (NW) and overweight (OW) individuals were different. WG increased Verrucomicrobia in the NW group and decreased Firmicutes in the OW group. Meanwhile, the effect of WG on gut microbiota showed gender characteristics, Firmicutes/Bacteroidetes ratio was decreased in women, while Verrucomicrobia abundance was increased in men. The use of WG could improve the microbial composition and promote the growth of beneficial microbes, which may be beneficial to the health of the elderly individuals.
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Affiliation(s)
- Zeying Cui
- Department of Breast Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Molecular Biology, Hainan Medical University, Haikou, China
| | - Jingtai Li
- Department of Breast Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yuting Zhen
- Key Laboratory of Molecular Biology, Hainan Medical University, Haikou, China
| | - Pingming Fan
- Department of Breast Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Pingming Fan
| | - Guankui Du
- Department of Breast Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Molecular Biology, Hainan Medical University, Haikou, China
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, China
- Biotechnology and Biochemistry Laboratory, Hainan Medical University, Haikou, China
- *Correspondence: Guankui Du
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Chen S, Xu M, Zhou M, He Y, Li Y, Lang H, Wei X, Yan L, Xu H. Hibiscus manihot L improves obesity in mice induced by a high-fat diet. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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