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Jensen N, Maldonado-Gomez M, Krishnakumar N, Weng CY, Castillo J, Razi D, Kalanetra K, German JB, Lebrilla CB, Mills DA, Taft DH. Dietary fiber monosaccharide content alters gut microbiome composition and fermentation. Appl Environ Microbiol 2024; 90:e0096424. [PMID: 39007602 PMCID: PMC11337808 DOI: 10.1128/aem.00964-24] [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: 05/14/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024] Open
Abstract
Members of the mammalian gut microbiota metabolize diverse complex carbohydrates that are not digested by the host, which are collectively labeled "dietary fiber." While the enzymes and transporters that each strain uses to establish a nutrient niche in the gut are often exquisitely specific, the relationship between carbohydrate structure and microbial ecology is imperfectly understood. The present study takes advantage of recent advances in complex carbohydrate structure determination to test the effects of fiber monosaccharide composition on microbial fermentation. Fifty-five fibers with varied monosaccharide composition were fermented by a pooled feline fecal inoculum in a modified MiniBioReactor array system over a period of 72 hours. The content of the monosaccharides glucose and xylose was significantly associated with the reduction of pH during fermentation, which was also predictable from the concentrations of the short-chain fatty acids lactic acid, propionic acid, and the signaling molecule indole-3-acetic acid. Microbiome diversity and composition were also predictable from monosaccharide content and SCFA concentration. In particular, the concentrations of lactic acid and propionic acid correlated with final alpha diversity and were significantly associated with the relative abundance of several of the genera, including Lactobacillus and Dubosiella. Our results suggest that monosaccharide composition offers a generalizable method to compare any dietary fiber of interest and uncover links between diet, gut microbiota, and metabolite production. IMPORTANCE The survival of a microbial species in the gut depends on the availability of the nutrients necessary for that species to survive. Carbohydrates in the form of non-host digestible fiber are of particular importance, and the set of genes possessed by each species for carbohydrate consumption can vary considerably. Here, differences in the monosaccharides that are the building blocks of fiber are considered for their impact on both the survival of different species of microbes and on the levels of microbial fermentation products produced. This work demonstrates that foods with similar monosaccharide content will have consistent effects on the survival of microbial species and on the production of microbial fermentation products.
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Affiliation(s)
- Nick Jensen
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - Maria Maldonado-Gomez
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - Nithya Krishnakumar
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - Cheng-Yu Weng
- Department of Chemistry, University of California, Davis, California, USA
| | - Juan Castillo
- Department of Chemistry, University of California, Davis, California, USA
| | - Dale Razi
- Foods for Health Institute, University of California, Davis, California, USA
| | - Karen Kalanetra
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - J. Bruce German
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - Carlito B. Lebrilla
- Foods for Health Institute, University of California, Davis, California, USA
- Department of Chemistry, University of California, Davis, California, USA
| | - David A. Mills
- Department of Food Science and Technology, University of California, Davis, California, USA
- Foods for Health Institute, University of California, Davis, California, USA
| | - Diana H. Taft
- Department of Food Science and Human Nutrition, University of Florida, Gainsville, Florida, USA
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2
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Couture G, Cheang SE, Suarez C, Chen Y, Bacalzo NP, Jiang J, Weng CYC, Stacy A, Castillo JJ, Delannoy-Bruno O, Webber DM, Barratt MJ, Gordon JI, Mills DA, German JB, Fukagawa NK, Lebrilla CB. A multi-glycomic platform for the analysis of food carbohydrates. Nat Protoc 2024:10.1038/s41596-024-01017-8. [PMID: 39026121 DOI: 10.1038/s41596-024-01017-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/30/2024] [Indexed: 07/20/2024]
Abstract
Carbohydrates comprise the largest fraction of most diets and exert a profound impact on health. Components such as simple sugars and starch supply energy, while indigestible components, deemed dietary fiber, reach the colon to provide food for the tens of trillions of microbes that make up the gut microbiota. The interactions between dietary carbohydrates, our gastrointestinal tracts, the gut microbiome and host health are dictated by their structures. However, current methods for analysis of food glycans lack the sensitivity, specificity and throughput needed to quantify and elucidate these myriad structures. This protocol describes a multi-glycomic approach to food carbohydrate analysis in which the analyte might be any food item or biological material such as fecal and cecal samples. The carbohydrates are extracted by ethanol precipitation, and the resulting samples are subjected to rapid-throughput liquid chromatography (LC)-tandem mass spectrometry (LC-MS/MS) methods. Quantitative analyses of monosaccharides, glycosidic linkages, polysaccharides and alcohol-soluble carbohydrates are performed in 96-well plates at the milligram scale to reduce the biomass of sample required and enhance throughput. Detailed stepwise processes for sample preparation, LC-MS/MS and data analysis are provided. We illustrate the application of the protocol to a diverse set of foods as well as different apple cultivars and various fermented foods. Furthermore, we show the utility of these methods in elucidating glycan-microbe interactions in germ-free and colonized mice. These methods provide a framework for elucidating relationships between dietary fiber, the gut microbiome and human physiology. These structures will further guide nutritional and clinical feeding studies that enhance our understanding of the role of diet in nutrition and health.
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Affiliation(s)
- Garret Couture
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Shawn Ehlers Cheang
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Christopher Suarez
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Ye Chen
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Nikita P Bacalzo
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Jiani Jiang
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Cheng-Yu Charlie Weng
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Aaron Stacy
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Juan J Castillo
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Omar Delannoy-Bruno
- Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
| | - Daniel M Webber
- Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Michael J Barratt
- Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Jeffrey I Gordon
- Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - David A Mills
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
- Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, USA
| | - J Bruce German
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
- Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
| | - Naomi K Fukagawa
- USDA Agricultural Research Service, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
| | - Carlito B Lebrilla
- Department of Chemistry, University of California, Davis, Davis, CA, USA.
- Foods for Health Institute, University of California, Davis, Davis, CA, USA.
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA.
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Coffey EL, Becker ZW, Gomez AM, Ericsson AC, Churchill JA, Burton EN, Granick JL, Lulich JP, Furrow E. Dietary Features Are Associated with Differences in the Urinary Microbiome in Clinically Healthy Adult Dogs. Vet Sci 2024; 11:286. [PMID: 39057970 PMCID: PMC11281549 DOI: 10.3390/vetsci11070286] [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: 05/21/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
Nutrition plays an important role in shaping the gut microbiome composition, although the impact of diet on the urinary microbiome (i.e., urobiome) remains unknown. The aim of this pilot study was to discover how nutritional features affect the diversity and composition of the urobiome in dogs. Dietary histories were obtained for 15 clinically healthy adult dogs, including limited nutrient (protein, fat, crude fiber), commercial diet brand, and dietary diversity profiles. The urine samples were collected via cystocentesis, followed by sequencing of the bacterial 16S rRNA gene. The data were analyzed to determine associations between major nutrients and dietary sources with the urobiome's composition. The protein, fat, and crude fiber contents had no statistically significant effect on the alpha or beta diversity. However, the beta diversity values differed (PERMANOVA; p = 0.017, R2 = 0.10) between dogs fed one commercial diet brand compared to dogs consuming any other brand. The beta diversity values also differed (p = 0.019, R2 = 0.10) between dogs consuming more diverse daily diets compared to those consuming less diverse diets (≥3 or <3 unique food sources, respectively). Overall, the results of this pilot study suggest that diet might impact the urobiome and support further exploration of the relationship between diet and the urobiome's composition in dogs.
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Affiliation(s)
- Emily L. Coffey
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
| | - Zoe W. Becker
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
| | - Andres M. Gomez
- Department of Animal Science, College of Food, Agricultural, and Natural Resource Sciences, University of Minnesota, Saint Paul, MN 55108, USA;
| | - Aaron C. Ericsson
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA;
| | - Julie A. Churchill
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
| | - Erin N. Burton
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA;
| | - Jennifer L. Granick
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
| | - Jody P. Lulich
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
| | - Eva Furrow
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA; (Z.W.B.); (J.A.C.); (J.L.G.); (J.P.L.); (E.F.)
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Wu JJ, Zheng X, Wu C, Ma W, Wang Y, Wang J, Wei Y, Zeng X, Zhang S, Guan W, Chen F. Melatonin alleviates high temperature exposure induced fetal growth restriction via the gut-placenta-fetus axis in pregnant mice. J Adv Res 2024:S2090-1232(24)00076-6. [PMID: 38382594 DOI: 10.1016/j.jare.2024.02.014] [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: 12/16/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024] Open
Abstract
INTRODUCTION Global warming augments the risk of adverse pregnancy outcomes in vulnerable expectant mothers. Pioneering investigations into heat stress (HS) have predominantly centered on its direct impact on reproductive functions, while the potential roles of gut microbiota, despite its significant influence on distant tissues, remain largely unexplored. Our understanding of deleterious mechanisms of HS and the development of effective intervention strategies to mitigate the detrimental impacts are still limited. OBJECTIVES In this study, we aimed to explore the mechanisms by which melatonin targets gut microbes to alleviate HS-induced reproductive impairment. METHODS We firstly evaluated the alleviating effects of melatonin supplementation on HS-induced reproductive disorder in pregnant mice. Microbial elimination and fecal microbiota transplantation (FMT) experiments were then conducted to confirm the efficacy of melatonin through regulating gut microbiota. Finally, a lipopolysaccharide (LPS)-challenged experiment was performed to verify the mechanism by which melatonin alleviates HS-induced reproductive impairment. RESULTS Melatonin supplementation reinstated gut microbiota in heat stressed pregnant mice, reducing LPS-producing bacteria (Aliivibrio) and increasing beneficial butyrate-producing microflora (Butyricimonas). This restoration corresponded to decreased LPS along the maternal gut-placenta-fetus axis, accompanied by enhanced intestinal and placental barrier integrity, safeguarding fetuses from oxidative stress and inflammation, and ultimately improving fetal weight. Further pseudo-sterile and fecal microbiota transplantation trials confirmed that the protective effect of melatonin on fetal intrauterine growth under HS was partially dependent on gut microbiota. In LPS-challenged pregnant mice, melatonin administration mitigated placental barrier injury and abnormal angiogenesis via the inactivation of the TLR4/MAPK/VEGF signaling pathway, ultimately leading to enhanced nutrient transportation in the placenta and thereby improving the fetal weight. CONCLUSION Melatonin alleviates HS-induced low fetal weight during pregnancy via the gut-placenta-fetus axis, the first time highlighting the gut microbiota as a novel intervention target to mitigate the detrimental impact of global temperature rise on vulnerable populations.
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Affiliation(s)
- Jia-Jin Wu
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyu Zheng
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
| | - Caichi Wu
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
| | - Wen Ma
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yibo Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jun Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yulong Wei
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiangfang Zeng
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, Beijing 100193, PR China
| | - Shihai Zhang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
| | - Wutai Guan
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
| | - Fang Chen
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China.
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Wang X, Ma K, Zhang C, Ji F, Chen L, Zhang X, Mahsa GC, Azarpazhooh E, Ajami M, Rui X, Li W. The interaction among Kluyveromyces marxianus G-Y4, Lacticaseibacillus paracasei GL1, and Lactobacillus helveticus SNA12 and signaling molecule AI-2 participate in the formation of biofilm. Food Microbiol 2023; 116:104369. [PMID: 37689420 DOI: 10.1016/j.fm.2023.104369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 08/08/2023] [Accepted: 08/24/2023] [Indexed: 09/11/2023]
Abstract
In this study, two strains of lactic acid bacteria (Lacticaseibacillus paracasei GL1 and Lactobacillus helveticus SNA12) and one yeast strain of Kluyveromyces marxianus G-Y4 (G-Y4) isolated from Tibetan kefir grains were co-cultured. It was found that the addition of G-Y4 could not only promote the growth of lactic acid bacteria, but also increase the release of metabolites (lactic acid, ethanol, and amino nitrogen). Furthermore, the addition of live cells and cell-free fermentation supernatant (CFS) of G-Y4 could increase the ability of biofilm formation. Morever, the surface characteristics results showed that the addition of G-Y4 live cells could enhance the aggregation ability and hydrophobicity of LAB. Meanwhile, adding live cells and CFS of G-Y4 could promote the release of signaling molecule AI-2 and enhance the expression of the LuxS gene related to biofilm formation. In addition, Fourier-transform infrared spectroscopy and chemical composition analysis were used to investigate the composition of the biofilm, and the results indicated that the biofilm was mainly composed of a small amount of protein but it was rich in polysaccharides including glucose, galactose, and mannose with different ratios. Finally, the formation of biofilm could delay the decline of the number of viable bacteria in storage fermented milk.
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Affiliation(s)
- Xiaomeng Wang
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China; College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, 266404, PR China
| | - Kai Ma
- Jiangsu New-Bio Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China; Jiangsu Biodep Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China
| | - Changliang Zhang
- Jiangsu New-Bio Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China; Jiangsu Biodep Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China
| | - Feng Ji
- Jiangsu New-Bio Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China; Jiangsu Biodep Biotechnology Co., Ltd., Jiangyin, Jiangsu, 214400, PR China
| | - Lili Chen
- Xinyi Ziyuantian Biotechnology Development Co., Ltd, Xinyi, Jiangsu, 221400, PR China
| | - Xueliang Zhang
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China
| | - Ghahvechi Chaeipeima Mahsa
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China
| | - Elham Azarpazhooh
- Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Iran
| | - Marjan Ajami
- National Nutrition and Food Technology Research Institute, School of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Xin Rui
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China
| | - Wei Li
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China.
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Olive oil ameliorates allergic response in murine ovalbumin-induced food allergy by promoting intestinal mucosal immunity. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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TRAVERSI DEBORAH, CALABRÒ GIOVANNAELISA, FRANCESE CORINNE, FRANCHITTI ELENA, PULLIERO ALESSANDRA, SPATERA PAOLA, IZZOTTI ALBERTO, VENTURA CARLADELLA, LAI ALESSIA, BERGNA ANNALISA, GALLI MASSIMO, ZEHENDER GIANGUGLIELMO, TAMBURRO MANUELA, LOMBARDI ADELE, SALZO ANGELO, DE DONA ROBERTA, D’AMICO ANTONIO, VICCIONE VITTORIO, RIPABELLI GIANCARLO, BACCOLINI VALENTINA, MIGLIARA GIUSEPPE, PITINI ERICA, MARZUILLO CAROLINA, DE VITO CORRADO, PASTORINO ROBERTA, VILLARI PAOLO, BOCCIA STEFANIA. [Genomics in Public Health Scientific evidence and prospects for integration in the prevention practice]. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2023; 63:E1-E29. [PMID: 36818497 PMCID: PMC9910509 DOI: 10.15167/2421-4248/jpmh2022.63.3s2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- DEBORAH TRAVERSI
- Dipartimento di Scienze della Sanità Pubblica e Pediatriche, Università di Torino, Torino, Italia
| | - GIOVANNA ELISA CALABRÒ
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - CORINNE FRANCESE
- Dipartimento di Scienze della Sanità Pubblica e Pediatriche, Università di Torino, Torino, Italia
| | - ELENA FRANCHITTI
- Dipartimento di Scienze della Sanità Pubblica e Pediatriche, Università di Torino, Torino, Italia
| | | | - PAOLA SPATERA
- Dipartimento di Scienze della Salute, Università di Genova, Genova, Italia
| | - ALBERTO IZZOTTI
- Dipartimento di Medicina Sperimentale, Università di Genova, Genova, Italia
- IRCCS Ospedale Policlinico San Martino, Genova, Italia
| | - CARLA DELLA VENTURA
- Dipartimento di Scienze Biomediche e Cliniche, Università di Milano, Milano, Italia
- EpiSoMi CRC-Centro di Ricerca Coordinato, Università degli Studi di Milano, Milano, Italia
| | - ALESSIA LAI
- Dipartimento di Scienze Biomediche e Cliniche, Università di Milano, Milano, Italia
- EpiSoMi CRC-Centro di Ricerca Coordinato, Università degli Studi di Milano, Milano, Italia
| | - ANNALISA BERGNA
- Dipartimento di Scienze Biomediche e Cliniche, Università di Milano, Milano, Italia
- EpiSoMi CRC-Centro di Ricerca Coordinato, Università degli Studi di Milano, Milano, Italia
| | - MASSIMO GALLI
- Dipartimento di Scienze Biomediche e Cliniche, Università di Milano, Milano, Italia
| | - GIANGUGLIELMO ZEHENDER
- Dipartimento di Scienze Biomediche e Cliniche, Università di Milano, Milano, Italia
- EpiSoMi CRC-Centro di Ricerca Coordinato, Università degli Studi di Milano, Milano, Italia
| | - MANUELA TAMBURRO
- Dipartimento di Medicina e di Scienze della Salute “Vincenzo Tiberio”, Università del Molise, Campobasso, Italia
| | - ADELE LOMBARDI
- Dipartimento di Medicina e di Scienze della Salute “Vincenzo Tiberio”, Università del Molise, Campobasso, Italia
| | - ANGELO SALZO
- Azienda Sanitaria Regionale del Molise, Campobasso, Italia
| | - ROBERTA DE DONA
- Scuola di Specializzazione in Igiene e Medicina Preventiva, Università del Molise, Campobasso, Italia
| | - ANTONIO D’AMICO
- Scuola di Specializzazione in Igiene e Medicina Preventiva, Università del Molise, Campobasso, Italia
| | - VITTORIO VICCIONE
- Scuola di Specializzazione in Igiene e Medicina Preventiva, Università del Molise, Campobasso, Italia
| | - GIANCARLO RIPABELLI
- Dipartimento di Medicina e di Scienze della Salute “Vincenzo Tiberio”, Università del Molise, Campobasso, Italia
- Azienda Sanitaria Regionale del Molise, Campobasso, Italia
- Scuola di Specializzazione in Igiene e Medicina Preventiva, Università del Molise, Campobasso, Italia
| | - VALENTINA BACCOLINI
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Roma, Italia
| | - GIUSEPPE MIGLIARA
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Roma, Italia
| | | | - CAROLINA MARZUILLO
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Roma, Italia
| | - CORRADO DE VITO
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Roma, Italia
| | - ROBERTA PASTORINO
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
- Dipartimento Scienze della Vita e Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - PAOLO VILLARI
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Roma, Italia
| | - STEFANIA BOCCIA
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
- Dipartimento Scienze della Vita e Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
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8
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Devi K, Kumar V, Kumar V, Mahajan N, Kaur J, Sharma S, Kumar A, Khan R, Bishnoi M, Kondepudi KK. Modified cereal bran (MCB) from finger millet, kodo millet, and rice bran prevents high-fat diet-induced metabolic derangements. Food Funct 2023; 14:1459-1475. [PMID: 36648164 DOI: 10.1039/d2fo02095e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cereal bran consumption improves gastrointestinal and metabolic health. Unprocessed cereal brans have a limited shelf-life and contain anti-nutrient phytochemicals. In the present study, lipids and antinutrients (flavonoids, tannin, and polyphenol) were removed from finger millet, kodo millet and rice bran using chemo-enzymatic processing. The thus-obtained modified cereal brans (MCBs) were evaluated for their potential in preventing high fat diet (HFD)-induced obesity. C57BL/6 mice were fed a HFD or a HFD supplemented with 10% w/w modified finger millet bran (mFMB), modified kodo millet bran (mKMB), modified rice bran (mRB), or a combination of the modified brans (1 : 1 : 1) for twelve weeks. The MCBs reduced HFD-induced body weight gain, improved glucose homeostasis, decreased the Firmicutes/Bacteroidetes ratio, and increased the short chain fatty acid (SCFA) levels in the cecum. Liver dyslipidemia, oxidative stress, inflammation, visceral white adipose tissue (vWAT) hypertrophy, and lipolysis were also prevented by the MCBs. Among the individual MCBs, mRB showed a greater effect in preventing HFD-induced increase in the inflammatory cytokines (IL-6, TNF-α, and LPS) than mFMB and mKMB. mFMB and mKMB supplementation more significantly restored the relative abundance of Akkermansia muciniphila and butyrate-producing genera such as Lachnospiraceae, Eubacterium, and Ruminococcus than mRB. Ex vivo gut permeability assay, immunohistochemistry of tight junction proteins, and gene expression analysis in the colon revealed that the combination of three brans was better in preventing HFD-induced leaky gut in comparison to the individual brans. Hierarchical clustering analysis showed that the combination group was clustered closest to the NPD group, suggesting an additive effect. Our study implies that a combination of mFMB, mKMB, and mRB could be used as a nutraceutical or functional food ingredient for preventing HFD-induced gut derangements and associated metabolic complications.
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Affiliation(s)
- Kirti Devi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Vibhu Kumar
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Vijay Kumar
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Neha Mahajan
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Jasleen Kaur
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Shikha Sharma
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Ajay Kumar
- Institute of Nanoscience and Technology (INST), Knowledge city-Sector 81, SAS Nagar, Punjab 140306, India
| | - Rehan Khan
- Institute of Nanoscience and Technology (INST), Knowledge city-Sector 81, SAS Nagar, Punjab 140306, India
| | - Mahendra Bishnoi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India.,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Kanthi Kiran Kondepudi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India.,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
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9
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Chen L, Liu B, Ren L, Du H, Fei C, Qian C, Li B, Zhang R, Liu H, Li Z, Ma Z. High-fiber diet ameliorates gut microbiota, serum metabolism and emotional mood in type 2 diabetes patients. Front Cell Infect Microbiol 2023; 13:1069954. [PMID: 36794003 PMCID: PMC9922700 DOI: 10.3389/fcimb.2023.1069954] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/17/2023] [Indexed: 02/01/2023] Open
Abstract
Previous studies have demonstrated that patients with type 2 diabetes mellitus (T2DM) often had the problems of fecal microbiota dysbiosis, and were usually accompanied with psychiatric comorbidities (such as depression and anxiety). Here, we conducted a randomized clinical study to analyze the changes in gut microbiota, serum metabolism and emotional mood of patients with T2DM after consumption of a high-fiber diet. The glucose homeostasis of participants with T2DM was improved by the high-fiber diet, and the serum metabolome, systemic inflammation and psychiatric comorbidities were also altered. The increased abundances of Lactobacillus, Bifidobacterium and Akkermansias revealed that the proportions of beneficial gut microbes were enriched by the high-fiber diet, while the abundances of Desulfovibrio, Klebsiella and other opportunistic pathogens were decreased. Therefore, the current study demonstrated that the intestinal microbiota alterations which were influenced by the high-fiber diet could improve the serum metabolism and emotional mood of patients with T2DM.
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Affiliation(s)
- Lihua Chen
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Bo Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Lixia Ren
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Hao Du
- Department of Gastroenterology, Mental Health Center of Fengxian District, Shanghai, China
| | - Chunhua Fei
- Department of Gastroenterology, Mental Health Center of Fengxian District, Shanghai, China
| | - Chang Qian
- Department of Gastroenterology, Mental Health Center of Fengxian District, Shanghai, China
| | - Bin Li
- Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruixia Zhang
- Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haixia Liu
- Safety & Quality Management Department, Sino-science Yikang (Beijing) Biotech Co., Ltd, Beijing, China
| | - Zongjie Li
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China,Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai, China,*Correspondence: Zongjie Li, ; Zhiyong Ma,
| | - Zhiyong Ma
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai, China,*Correspondence: Zongjie Li, ; Zhiyong Ma,
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10
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Zhang Y, Cheng L, Liu Y, Zhan S, Wu Z, Luo S, Zhang X. Dietary flavonoids: a novel strategy for the amelioration of cognitive impairment through intestinal microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:488-495. [PMID: 35892267 DOI: 10.1002/jsfa.12151] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The chances of people suffering from cognitive impairments increase gradually with age. Diet and lifestyle are closely related to the occurrence and development of cognitive function. Dietary flavonoid supplementation has been shown to be one of the protective factors against cognitive decline. Flavonoids belong to a class of polyphenols that have been proposed for the treatment of cognitive decline. Recent evidence has shown that intestinal flora in the human body can interact with flavonoids. Intestinal microbiota can modify the chemical structure of flavonoids, producing new metabolites, the pharmacological activities of which may be different from those of the parent; meanwhile, flavonoids and their metabolites can, in turn, regulate the composition and structure of intestinal flora. Notably, intestinal flora affect host nervous system activity through the gut-brain axis, ultimately causing changes in cognitive function. This review therefore summarizes the interaction of dietary flavonoids and intestinal flora, and their protective effect against cognitive decline through the gut-brain axis, indicating that dietary flavonoids may ameliorate cognitive impairment through their interaction with intestinal microbiota. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Lu Cheng
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Shengnan Zhan
- Department of Food Science and Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Songmei Luo
- Department of Pharmacy, Lishui Central Hospital, Lishui, People's Republic of China
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, People's Republic of China
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11
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Chen J, Li Z, Wang X, Fan B, Deng F, D.Yu H, Ze X, Zhu L, Yin Y, Chen Y, Zhao J, Yang Y, Wang X. Isomaltooligosaccharides Sustain the Growth of Prevotella Both In Vitro and in Animal Models. Microbiol Spectr 2022; 10:e0262121. [PMID: 36377936 PMCID: PMC9769830 DOI: 10.1128/spectrum.02621-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
The human digestive tract is colonized by trillions of bacterial cells that play important roles in human health and diseases. It is well known that dietary habits are associated with human microbiota enterotypes. However, the factors that determine the enterotype still remain elusive. In this study, it was first examined, via in vitro batch fermentation, how different carbohydrates affect the Bacteroides and Prevotella enterotypes. Among the 11 substrates (fructo-, galacto-, xylo-, manno-, and isomalto-oligosaccharides [IMO] and lactulose, raffinose, starch, inulin [INU], mannitol, and xylitol) tested, IMO, INU, and starch were found to sustain the growth of Prevotella through batch fermentation. The development of the Prevotella and Bacteroides enterotypes was further simulated in chemostats using fecal samples. IMO coupled with faster dilution rates and lower pH were required to sustain the growth of Prevotella copri in the chemostat based on 16S rRNA gene and metagenomic sequencing. Meanwhile, starch with relatively lower dilution rates and higher pH was required to support the development of the Bacteroides enterotype. Amylo-α-1,6-glucosidase, pectin, and xylan lyases were the carbohydrate-active enzymes associated with the Prevotella enterotype. The Bacteroides enterotype was associated with more diversified carbohydrate-active enzymes. Consistently, since honey contains high isomaltose content, mice fed IMO and honey displayed an increased relative abundance of Prevotella in the colon. In conclusion, both in vitro systems and a mouse model were used to demonstrate that IMO maintains the Prevotella enterotype. This result provides insight into the nutritional requirements underlying gut enterotype formation. IMPORTANCE The Prevotella enterotype type is a human traditional enterotype with high dietary fiber intake, which is related to healthy ageing and Parkinson's disease development. Manipulations of the dwelled gut microbes by dietary isomalto-oligosaccharides efficiently sustained Prevotella type enterotypes, indicating that it can be used in the improvement of elderly health by increasing the gut transit time.
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Affiliation(s)
- Junkui Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, People’s Republic of China
| | - Zhengpeng Li
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, People’s Republic of China
| | - Xiaofan Wang
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Bin Fan
- Department of Critical Care Medicine, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Feilong Deng
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Hongwei D.Yu
- Department of Biomedical Sciences, Marshall University, Huntington, West Virginia, USA
| | - Xiaolei Ze
- BYHEALTH CO., Ltd., Guangzhou, People’s Republic of China
| | - Liying Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, People’s Republic of China
| | - Yeshi Yin
- Hunan University of Science and Engineering, Yongzhou, Hunan, People’s Republic of China
| | - Yanhong Chen
- Laboratory Animal Center of Zhejiang University, Hangzhou, People’s Republic of China
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Yunsheng Yang
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, People’s Republic of China
| | - Xin Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, People’s Republic of China
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12
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Sun Q, Vega NM, Cervantes B, Mancuso CP, Mao N, Taylor MN, Collins JJ, Khalil AS, Gore J, Lu TK. Enhancing nutritional niche and host defenses by modifying the gut microbiome. Mol Syst Biol 2022; 18:e9933. [PMID: 36377768 PMCID: PMC9664710 DOI: 10.15252/msb.20209933] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 08/15/2022] [Accepted: 10/14/2022] [Indexed: 08/18/2023] Open
Abstract
The gut microbiome is essential for processing complex food compounds and synthesizing nutrients that the host cannot digest or produce, respectively. New model systems are needed to study how the metabolic capacity provided by the gut microbiome impacts the nutritional status of the host, and to explore possibilities for altering host metabolic capacity via the microbiome. Here, we colonized the nematode Caenorhabditis elegans gut with cellulolytic bacteria that enabled C. elegans to utilize cellulose, an otherwise indigestible substrate, as a carbon source. Cellulolytic bacteria as a community component in the worm gut can also support additional bacterial species with specialized roles, which we demonstrate by using Lactobacillus plantarum to protect C. elegans against Salmonella enterica infection. This work shows that engineered microbiome communities can be used to endow host organisms with novel functions, such as the ability to utilize alternate nutrient sources or to better fight pathogenic bacteria.
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Affiliation(s)
- Qing Sun
- Synthetic Biology CenterMITCambridgeMAUSA
- Department of Chemical EngineeringTexas A&M UniversityCollege StationTXUSA
| | - Nic M Vega
- Department of PhysicsMITCambridgeMAUSA
- Biology DepartmentEmory UniversityAtlantaGAUSA
| | - Bernardo Cervantes
- Institute for Medical Engineering & Science and Department of Biological EngineeringMITCambridgeMAUSA
- Broad Institute of MIT and HarvardCambridgeMAUSA
- Microbiology Graduate ProgramMITCambridgeMAUSA
| | - Christopher P Mancuso
- Biological Design CenterBoston UniversityBostonMAUSA
- Department of Biomedical EngineeringBoston UniversityBostonMAUSA
| | - Ning Mao
- Department of Biomedical EngineeringBoston UniversityBostonMAUSA
| | | | - James J Collins
- Synthetic Biology CenterMITCambridgeMAUSA
- Institute for Medical Engineering & Science and Department of Biological EngineeringMITCambridgeMAUSA
- Broad Institute of MIT and HarvardCambridgeMAUSA
- Wyss Institute for Biologically Inspired EngineeringHarvard UniversityBostonMAUSA
| | - Ahmad S Khalil
- Biological Design CenterBoston UniversityBostonMAUSA
- Department of Biomedical EngineeringBoston UniversityBostonMAUSA
- Wyss Institute for Biologically Inspired EngineeringHarvard UniversityBostonMAUSA
| | - Jeff Gore
- Department of PhysicsMITCambridgeMAUSA
| | - Timothy K Lu
- Synthetic Biology CenterMITCambridgeMAUSA
- Department of Electrical Engineering and Computer ScienceMITCambridgeMAUSA
- Department of Biological EngineeringMITCambridgeMAUSA
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13
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Wang Y, Jian C. Sustainable plant-based ingredients as wheat flour substitutes in bread making. NPJ Sci Food 2022; 6:49. [PMID: 36307422 PMCID: PMC9614748 DOI: 10.1038/s41538-022-00163-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/29/2022] [Indexed: 11/09/2022] Open
Abstract
Bread as a staple food has been predominantly prepared from refined wheat flour. The world’s demand for food is rising with increased bread consumption in developing countries where climate conditions are unsuitable for wheat cultivation. This reliance on wheat increases the vulnerability to wheat supply shocks caused by force majeure or man-made events, in addition to negative environmental and health consequences. In this review, we discuss the contribution to the sustainability of food systems by partially replacing wheat flour with various types of plant ingredients in bread making, also known as composite bread. The sustainable sources of non-wheat flours, their example use in bread making and potential health and nutritional benefits are summarized. Non-wheat flours pose techno-functional challenges due to significantly different properties of their proteins compared to wheat gluten, and they often contain off-favor compounds that altogether limit the consumer acceptability of final bread products. Therefore, we detail recent advances in processing strategies to improve the sensory and nutritional profiles of composite bread. A special focus is laid on fermentation, for its accessibility and versatility to apply to different ingredients and scenarios. Finally, we outline research needs that require the synergism between sustainability science, human nutrition, microbiomics and food science.
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Affiliation(s)
- Yaqin Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China.,Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Ching Jian
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland. .,Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
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14
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Structural characterization of mushroom polysaccharides by cyclic ion mobility-mass spectrometry. J Chromatogr A 2022; 1680:463445. [PMID: 36041250 DOI: 10.1016/j.chroma.2022.463445] [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: 06/30/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 11/22/2022]
Abstract
Polysaccharides are biopolymers known to possess various bioactivities. Because of their molecular complexity, the structural characterization of polysaccharides remains challenging, and difficult to be completed with a single analytical method. In this study, a novel approach for the characterization of linkages and anomeric configuration of polysaccharides was proposed. Based on ion mobility-mass spectrometry (IM-MS), a database containing 5 glucotriose standards was set up. Information about the arrival time distribution and fragmentation patterns of these standards were included. The method was validated by three commercially available purified polysaccharides, namely laminarin, dextrin, and dextran, each having distinct connectivity and configuration of the glycosidic bonds. Lastly, the method was successfully applied to analyze polysaccharides prepared from three medicinal mushrooms, namely Xylaria nigripes, Grifola frondosa, and Laetiporus sulphureus. The results showed that water-soluble non-digestible polysaccharides of X. nigripes and G. frondosa were mainly composed of (1→3)-β-glucan, while that of L. sulphureus was composed of (1→3)-ɑ-glucan. The present method has the advantages of being simple in sample preparation and short analysis time.
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15
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Pascuta MS, Varvara RA, Teleky BE, Szabo K, Plamada D, Nemeş SA, Mitrea L, Martău GA, Ciont C, Călinoiu LF, Barta G, Vodnar DC. Polysaccharide-Based Edible Gels as Functional Ingredients: Characterization, Applicability, and Human Health Benefits. Gels 2022; 8:524. [PMID: 36005125 PMCID: PMC9407509 DOI: 10.3390/gels8080524] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 12/16/2022] Open
Abstract
Nowadays, edible materials such as polysaccharides have gained attention due to their valuable attributes, especially gelling property. Polysaccharide-based edible gels (PEGs) can be classified as (i) hydrogels, (ii) oleogels and bigels, (iii) and aerogels, cryogels and xerogels, respectively. PEGs have different characteristics and benefits depending on the functional groups of polysaccharide chains (e.g., carboxylic, sulphonic, amino, methoxyl) and on the preparation method. However, PEGs are found in the incipient phase of research and most studies are related to their preparation, characterization, sustainable raw materials, and applicability. Furthermore, all these aspects are treated separately for each class of PEG, without offering an overview of those already obtained PEGs. The novelty of this manuscript is to offer an overview of the classification, definition, formulation, and characterization of PEGs. Furthermore, the applicability of PEGs in the food sector (e.g., food packaging, improving food profile agent, delivery systems) and in the medical/pharmaceutical sector is also critically discussed. Ultimately, the correlation between PEG consumption and polysaccharides properties for human health (e.g., intestinal microecology, "bridge effect" in obesity, gut microbiota) are critically discussed for the first time. Bigels may be valuable for use as ink for 3D food printing in personalized diets for human health treatment. PEGs have a significant role in developing smart materials as both ingredients and coatings and methods, and techniques for exploring PEGs are essential. PEGs as carriers of bioactive compounds have a demonstrated effect on obesity. All the physical, chemical, and biological interactions among PEGs and other organic and inorganic structures should be investigated.
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Affiliation(s)
- Mihaela Stefana Pascuta
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Rodica-Anita Varvara
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Bernadette-Emőke Teleky
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Katalin Szabo
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
| | - Diana Plamada
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Silvia-Amalia Nemeş
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Laura Mitrea
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
| | - Gheorghe Adrian Martău
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
| | - Călina Ciont
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Lavinia Florina Călinoiu
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
| | - Gabriel Barta
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
| | - Dan Cristian Vodnar
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăștur 3-5, 400372 Cluj-Napoca, Romania
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16
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The Development of the Davis Food Glycopedia-A Glycan Encyclopedia of Food. Nutrients 2022; 14:nu14081639. [PMID: 35458202 PMCID: PMC9032246 DOI: 10.3390/nu14081639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/03/2022] [Accepted: 04/12/2022] [Indexed: 12/17/2022] Open
Abstract
The molecular complexity of the carbohydrates consumed by humans has been deceptively oversimplified due to a lack of analytical methods that possess the throughput, sensitivity, and resolution required to provide quantitative structural information. However, such information is becoming an integral part of understanding how specific glycan structures impact health through their interaction with the gut microbiome and host physiology. This work presents a detailed catalogue of the glycans present in complementary foods commonly consumed by toddlers during weaning and foods commonly consumed by American adults. The monosaccharide compositions of over 800 foods from diverse food groups including Fruits, Vegetables, Grain Products, Beans, Peas, Other Legumes, Nuts, Seeds; Sugars, Sweets and Beverages; Animal Products, and more were obtained and used to construct the “Davis Food Glycopedia” (DFG), an open-access database that provides quantitative structural information on the carbohydrates in food. While many foods within the same group possessed similar compositions, hierarchical clustering analysis revealed similarities between different groups as well. Such a Glycopedia can be used to formulate diets rich in specific monosaccharide residues to provide a more targeted modulation of the gut microbiome, thereby opening the door for a new class of prophylactic or therapeutic diets.
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17
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Bergstrom K, Xia L. The barrier and beyond: Roles of intestinal mucus and mucin-type O-glycosylation in resistance and tolerance defense strategies guiding host-microbe symbiosis. Gut Microbes 2022; 14:2052699. [PMID: 35380912 PMCID: PMC8986245 DOI: 10.1080/19490976.2022.2052699] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Over the past two decades, our appreciation of the gut mucus has moved from a static lubricant to a dynamic and essential component of the gut ecosystem that not only mediates the interface between host tissues and vast microbiota, but regulates how this ecosystem functions to promote mutualistic symbioses and protect from microbe-driven diseases. By delving into the complex chemistry and biology of the mucus, combined with innovative in vivo and ex vivo approaches, recent studies have revealed novel insights into the formation and function of the mucus system, the O-glycans that make up this system, and how they mediate two major host-defense strategies - resistance and tolerance - to reduce damage caused by indigenous microbes and opportunistic pathogens. This current review summarizes these findings by highlighting the emerging roles of mucus and mucin-type O-glycans in influencing host and microbial physiology with an emphasis on host defense strategies against bacteria in the gastrointestinal tract.
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Affiliation(s)
- Kirk Bergstrom
- Department of Biology, University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna, British ColumbiaV1V 1V7, Canada,Kirk Bergstrom Department of Biology, University of British Columbia, 3333 University Way, Kelowna, B.C. Canada
| | - Lijun Xia
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, OK, Oklahoma73104, USA,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, OK, Oklahoma73104, USA,CONTACT Lijun Xia Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, OK, Oklahoma73104, USA
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18
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Tian D, Han M. Bacterial peptidoglycan muropeptides benefit mitochondrial homeostasis and animal physiology by acting as ATP synthase agonists. Dev Cell 2022; 57:361-372.e5. [PMID: 35045336 PMCID: PMC8825754 DOI: 10.1016/j.devcel.2021.12.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 10/18/2021] [Accepted: 12/15/2021] [Indexed: 11/24/2022]
Abstract
The symbiotic relationship between commensal microbes and host animals predicts unidentified beneficial impacts of individual bacterial metabolites on animal physiology. Peptidoglycan fragments (muropeptides) from the bacterial cell wall are known for their roles in pathogenicity and for inducing host immune responses. However, the potential beneficial usage of muropeptides from commensal bacteria by the host needs exploration. We identified a striking role for muropeptides in supporting mitochondrial homeostasis, development, and behaviors in Caenorhabditis elegans. We determined that the beneficial molecules are disaccharide muropeptides containing a short AA chain, and they enter intestinal-cell mitochondria to repress oxidative stress. Further analyses indicate that muropeptides execute this role by binding to and promoting the activity of ATP synthase. Therefore, given the exceptional structural conservation of ATP synthase, the role of muropeptides as a rare agonist of the ATP synthase presents a major conceptual modification regarding the impact of bacterial cell metabolites on animal physiology.
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Affiliation(s)
- Dong Tian
- Department of MCDB, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - Min Han
- Department of MCDB, University of Colorado at Boulder, Boulder, CO 80309, USA.
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19
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20
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Singh RP, Niharika J, Kondepudi KK, Bishnoi M, Tingirikari JMR. Recent understanding of human milk oligosaccharides in establishing infant gut microbiome and roles in immune system. Food Res Int 2022; 151:110884. [PMID: 34980411 DOI: 10.1016/j.foodres.2021.110884] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 11/19/2021] [Accepted: 12/06/2021] [Indexed: 12/16/2022]
Abstract
Human milk oligosaccharides (HMOs) are complex sugars with distinctive structural diversity present in breast milk. HMOs have various functional roles to play in infant development starting from establishing the gut microbiome and immune system to take it up to the mature phase. It has been a major energy source for human gut microbes that confer positive benefits on infant health by directly interacting through intestinal cells and generating short-chain fatty acids. It has recently become evident that each species of Bifidobacterium and other genera which are resident of the infant gut employ distinct molecular mechanisms to capture and digest diverse structural HMOs to avoid competition among themselves and successfully maintain gut homeostasis. HMOs also directly modulate gut immune responses and can decoy receptors of pathogenic bacteria and viruses, inhibiting their binding on intestinal cells, thus preventing the emergence of a disease. This review provides a critical understanding of how different gut bacteria capture and utilize selective sugars from the HMO pool and how different structural HMOs protect infants from infectious diseases.
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Affiliation(s)
- Ravindra Pal Singh
- Laboratory of Gut Glycobiology, Food and Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute (NABI), SAS Nagar, Punjab 140306, India.
| | - Jayashree Niharika
- Laboratory of Gut Glycobiology, Food and Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute (NABI), SAS Nagar, Punjab 140306, India
| | - Kanthi Kiran Kondepudi
- Healthy Gut Research Group, Food and Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute (NABI), SAS Nagar, Punjab 140306, India
| | - Mahendra Bishnoi
- Healthy Gut Research Group, Food and Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute (NABI), SAS Nagar, Punjab 140306, India
| | - Jagan Mohan Rao Tingirikari
- Department of Biotechnology, National Institute of Technology Andhra Pradesh, Tadepalligudem, Andhra Pradesh 534101, India
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21
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Han W, Zhuang X, Liu Q, Sun B, Miao H, Zhang X. Fermented soy whey induced changes on intestinal microbiota and metabolic influence in mice. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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22
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Smith C, Van Haute MJ, Xian Y, Segura Munoz RR, Liu S, Schmaltz RJ, Ramer-Tait AE, Rose DJ. Carbohydrate utilization by the gut microbiome determines host health responsiveness to whole grain type and processing methods. Gut Microbes 2022; 14:2126275. [PMID: 36130094 PMCID: PMC9519025 DOI: 10.1080/19490976.2022.2126275] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 02/04/2023] Open
Abstract
Little is known about how interactions among grain processing, grain type, and carbohydrate utilization (CU) by the microbiome influence the health benefits of whole grains. Therefore, two whole grains - brown rice and whole wheat - and two processing methods - boiling (porridge) and extrusion - were studied for their effects on host metabolic outcomes in mice harboring human microbiomes previously shown in vitro to have high or low CU. Mice carrying either microbiome experienced increases in body weight and glycemia when consuming Western diets supplemented with extruded grains versus porridge. However, mice with the high but not low CU microbiome also gained more weight and fat over time and were less glucose tolerant when consuming extruded grain diets. In high CU microbiome mice, the exacerbated negative health outcomes associated with extrusion were related to altered abundances of Lachnospiraceae and Ruminococcaceae as well as elevated sugar degradation and colonic acetate production. The amplicon sequence variants (ASVs) associated with extruded and porridge diets in this in vivo study were not the same as those identified in our prior in vitro study; however, the predicted functions were highly correlated. In conclusion, mice harboring both high and low CU microbiomes responded to the whole grain diets similarly, except the high CU microbiome mice exhibited exacerbated effects due to excessive acetate production, indicating that CU by the microbiome is linked to host metabolic health outcomes. Our work demonstrates that a greater understanding of food processing effects on the microbiome is necessary for developing foods that promote rather than diminish host health.Abbreviations: CU- carbohydrate utilization; SCFA- short-chain fatty acids; GF- germ-free; HMA, human-microbiome associated; ipGTT- intraperitoneal glucose tolerance test; HOMA-IR- Homeostatic Model Assessment for Insulin Resistance; AUC- area under the glycemia curve; ASV- amplicon sequence variant; lf- low-fat; wd- Western diet; wd_wwp- Western diet containing whole wheat porridge; wd_wwe- Western diet containing whole wheat extrudate; wd_bre- Western diet containing brown rice extrudate; wd_extr- Western diet containing either whole wheat or brown rice extrudate.
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Affiliation(s)
- Caroline Smith
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Grain Research and Quality, Ardent Mills, Denver, CO, USA
| | - Mallory J. Van Haute
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Research and Development, Synbiotic Health, Lincoln, NE, USA
| | - Yibo Xian
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Rafael R. Segura Munoz
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Systems & Synthetic Microbiology, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany
| | - Sujun Liu
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Robert J. Schmaltz
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Amanda E. Ramer-Tait
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Devin J. Rose
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA
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Lutsiv T, Weir TL, McGinley JN, Neil ES, Wei Y, Thompson HJ. Compositional Changes of the High-Fat Diet-Induced Gut Microbiota upon Consumption of Common Pulses. Nutrients 2021; 13:3992. [PMID: 34836246 PMCID: PMC8625176 DOI: 10.3390/nu13113992] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 12/12/2022] Open
Abstract
The gut microbiome is involved in the host's metabolism, development, and immunity, which translates to measurable impacts on disease risk and overall health. Emerging evidence supports pulses, i.e., grain legumes, as underutilized nutrient-dense, culinarily versatile, and sustainable staple foods that promote health benefits through modulating the gut microbiota. Herein, the effects of pulse consumption on microbial composition in the cecal content of mice were assessed. Male mice were fed an obesogenic diet formulation with or without 35% of the protein component comprised by each of four commonly consumed pulses-lentil (Lens culinaris L.), chickpea (Cicer arietinum L.), common bean (Phaseolus vulgaris L.), or dry pea (Pisum sativum L.). Mice consuming pulses had distinct microbial communities from animals on the pulse-free diet, as evidenced by β-diversity ordinations. At the phylum level, animals consuming pulses showed an increase in Bacteroidetes and decreases in Proteobacteria and Firmicutes. Furthermore, α-diversity was significantly higher in pulse-fed animals. An ecosystem of the common bacteria that were enhanced, suppressed, or unaffected by most of the pulses was identified. These compositional changes are accompanied by shifts in predicted metagenome functions and are concurrent with previously reported anti-obesogenic physiologic outcomes, suggestive of microbiota-associated benefits of pulse consumption.
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Affiliation(s)
- Tymofiy Lutsiv
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA; (T.L.); (J.N.M.); (E.S.N.)
- Graduate Program in Cell and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA;
| | - Tiffany L. Weir
- Graduate Program in Cell and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA;
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA;
| | - John N. McGinley
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA; (T.L.); (J.N.M.); (E.S.N.)
| | - Elizabeth S. Neil
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA; (T.L.); (J.N.M.); (E.S.N.)
| | - Yuren Wei
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA;
| | - Henry J. Thompson
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA; (T.L.); (J.N.M.); (E.S.N.)
- Graduate Program in Cell and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA;
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Bodawatta KH, Hird SM, Grond K, Poulsen M, Jønsson KA. Avian gut microbiomes taking flight. Trends Microbiol 2021; 30:268-280. [PMID: 34393028 DOI: 10.1016/j.tim.2021.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/18/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023]
Abstract
Birds harbor complex gut bacterial communities that may sustain their ecologies and facilitate their biological roles, distribution, and diversity. Research on gut microbiomes in wild birds is surging and it is clear that they are diverse and important - but strongly influenced by a series of environmental factors. To continue expanding our understanding of how the internal ecosystems of birds work in their natural settings, we believe the most pressing needs involve studies on the functional and evolutionary aspects of these symbioses. Here we summarize the state of the field and provide a roadmap for future studies on aspects that are pivotal to understanding the biology of avian gut microbiomes, emphasizing prospects for integrating gut microbiome work in avian conservation and host health monitoring.
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Affiliation(s)
- Kasun H Bodawatta
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.
| | - Sarah M Hird
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, USA; Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| | - Kirsten Grond
- Department of Biological Sciences, University of Alaska, Anchorage, AK, USA
| | - Michael Poulsen
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Knud A Jønsson
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
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25
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Zhou J, Tang L, Wang JS. Aflatoxin B1 Induces Gut-Inflammation-Associated Fecal Lipidome Changes in F344 Rats. Toxicol Sci 2021; 183:363-377. [PMID: 34358323 DOI: 10.1093/toxsci/kfab096] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aflatoxin B1 (AFB1) induced intestinal epithelial damage in rodent models, which indicates that long-term exposure to AFB1 may cause chronic gut disorders. In this study we tested the hypothesis that AFB1-induced adverse effects on gut is mediated by gut-microbiota, which is partially reflected by the changes of fecal microbiome and metabolome. F344 rats were orally exposed to AFB1 of 0, 5, 25 and 75 µg kg-1 body weight for 4 weeks and fecal samples were collected. An ion-fragmentation-spectrum-based metabolomics approach was developed to investigate the fecal microbiota-associated metabolic changes in fecal samples. We found that AFB1 inhibited the hepatic and intestinal metabolism of bile constituents. As compared to the controls, bile acid synthesis-associated cholesterols in rats treated with 25 µg kg-1 (the middle-dose group) were significantly decreased in the fecal samples, e.g., lathosterol (45% reduction), cholesterol ester (21% reduction), chenodeoxycholic acid (20% reduction), dihydroxycholesterol (55% reduction), hydroxycholesterol (20% reduction), and 5-cholestene (29% reduction). While disease-associated lipids were not detectable in the feces of the control group, they were found in AFB1-treated groups, including diglyceride, monoacylglyceride, 19,20-dihydroxy-docosapentaenoic acid, and phosphatidylethanolamine. Metabolisms of carbohydrates and production of short chain fatty acids were remarkedly decreased in all treated groups. Moreover, an inflammatory-bowel-disease (IBD)-associated taxonomic structure of fecal microbiota was observed as ∼25% Lachnospiraceae, ∼25% Ruminococcaceae, < 1% Lactobacillales, which was similar to the composition pattern found in IBD patients. These results suggest that AFB1-induced disruption on gut-microbiota, partially reflected by fecal microbiome and metabolome, may play important roles in the pathogenesis of chronic gut disorders.
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Affiliation(s)
- Jun Zhou
- Institute of Toxicology, School of Public Health, Cheeloo College of Medicine, Shandong University, 250012, China.,Interdisciplinary Toxicology Program, the University of Georgia, Athens, Georgia, 30602, USA
| | - Lili Tang
- Interdisciplinary Toxicology Program, the University of Georgia, Athens, Georgia, 30602, USA.,Department of Environmental Health Science, College of Public Health, the University of Georgia, Athens, Georgia, 30602, USA
| | - Jia-Sheng Wang
- Interdisciplinary Toxicology Program, the University of Georgia, Athens, Georgia, 30602, USA.,Department of Environmental Health Science, College of Public Health, the University of Georgia, Athens, Georgia, 30602, USA
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Ecklu-Mensah G, Gilbert J, Devkota S. Dietary Selection Pressures and Their Impact on the Gut Microbiome. Cell Mol Gastroenterol Hepatol 2021; 13:7-18. [PMID: 34329765 PMCID: PMC8600059 DOI: 10.1016/j.jcmgh.2021.07.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 12/18/2022]
Abstract
The human gut microbiota harbors a heterogeneous and dynamic community of microorganisms that coexist with the host to exert a marked influence on human physiology and health. Throughout the lifespan, diet can shape the composition and diversity of the members of the gut microbiota by determining the microorganisms that will colonize, persist, or become extinct. This is no more pronounced than during early-life succession of the gut microbiome when food type and source changes relatively often and food preferences are established, which is largely determined by geographic location and the customs and cultural practices of that environment. These dietary selection pressures continue throughout life, as society has become increasingly mobile and as we consume new foods to which we have had no previous exposure. Dietary selection pressures also come in the form of overall reduction or excess such as with the growing problems of food insecurity (lack of food) as well as of dietary obesity (overconsumption). These are well-documented forms of dietary selection pressures that have profound impact on the gut microbiota that ultimately may contribute to or worsen disease. However, diets and dietary components can also be used to promote healthy microbial functions in the gut, which will require tailored approaches taking into account an individual's personal history and doing away with one-size-fits-all nutrition. Herein, we summarize current knowledge on major dietary selection pressures that influence gut microbiota structure and function across and within populations, and discuss both the potential of personalized dietary solutions to health and disease and the challenges of implementation.
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Affiliation(s)
- Gertrude Ecklu-Mensah
- Department of Pediatrics, University of California San Diego, La Jolla, California,Scripps Institution of Oceanography, University of California San Diego, La Jolla, California
| | - Jack Gilbert
- Department of Pediatrics, University of California San Diego, La Jolla, California,Scripps Institution of Oceanography, University of California San Diego, La Jolla, California
| | - Suzanne Devkota
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California,Correspondence Address Correspondence to: Suzanne Devkota, PhD, F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048. fax: (310) 423-0224
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27
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Berntson L. A pilot study of possible anti-inflammatory effects of the specific carbohydrate diet in children with juvenile idiopathic arthritis. Pediatr Rheumatol Online J 2021; 19:88. [PMID: 34112181 PMCID: PMC8194161 DOI: 10.1186/s12969-021-00577-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/25/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND To explore possible anti-inflammatory effects of the specific carbohydrate diet in children with juvenile idiopathic arthritis. This diet has shown anti-inflammatory effect in children with inflammatory bowel disease. METHODS Twenty-two patients with juvenile idiopathic arthritis (age 6.3-17.3 years), with ≤2 inflamed joints and an erythrocyte sedimentation rate < 30 mm/h, were included in this explorative study. Fifteen children completing four weeks on the diet were evaluated. A dietician introduced parents and children to the diet, and two follow-ups were performed during the intervention. Conventional laboratory tests and multiplex analyses of 92 inflammatory proteins were used. Short-chain fatty acids in faecal samples were examined. RESULTS The diet significantly decreased morning stiffness (p = 0.003) and pain (p = 0.048). Physical function, assessed through the child health assessment questionnaire, improved (p = 0.022). Arthritis improved in five of the seven children with arthritis; in those seven, multiplex analyses showed a significant decrease in nine inflammatory proteins, including TNF-alpha (p = 0.028), after four weeks. Faecal butyrate, analysed in all 15 participants, increased significantly (p = 0.020). CONCLUSION The specific carbohydrate diet may have significant positive effects on arthritis in children with juvenile idiopathic arthritis, but further studies are needed. CLINICAL TRIALS IDENTIFIER NCT04205500 , 2019/12/17, retrospectively registered. URL: https://register.clinicaltrials.gov.
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Affiliation(s)
- Lillemor Berntson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
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28
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Moreno-Indias I, Lahti L, Nedyalkova M, Elbere I, Roshchupkin G, Adilovic M, Aydemir O, Bakir-Gungor B, Santa Pau ECD, D’Elia D, Desai MS, Falquet L, Gundogdu A, Hron K, Klammsteiner T, Lopes MB, Marcos-Zambrano LJ, Marques C, Mason M, May P, Pašić L, Pio G, Pongor S, Promponas VJ, Przymus P, Saez-Rodriguez J, Sampri A, Shigdel R, Stres B, Suharoschi R, Truu J, Truică CO, Vilne B, Vlachakis D, Yilmaz E, Zeller G, Zomer AL, Gómez-Cabrero D, Claesson MJ. Statistical and Machine Learning Techniques in Human Microbiome Studies: Contemporary Challenges and Solutions. Front Microbiol 2021; 12:635781. [PMID: 33692771 PMCID: PMC7937616 DOI: 10.3389/fmicb.2021.635781] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/28/2021] [Indexed: 12/23/2022] Open
Abstract
The human microbiome has emerged as a central research topic in human biology and biomedicine. Current microbiome studies generate high-throughput omics data across different body sites, populations, and life stages. Many of the challenges in microbiome research are similar to other high-throughput studies, the quantitative analyses need to address the heterogeneity of data, specific statistical properties, and the remarkable variation in microbiome composition across individuals and body sites. This has led to a broad spectrum of statistical and machine learning challenges that range from study design, data processing, and standardization to analysis, modeling, cross-study comparison, prediction, data science ecosystems, and reproducible reporting. Nevertheless, although many statistics and machine learning approaches and tools have been developed, new techniques are needed to deal with emerging applications and the vast heterogeneity of microbiome data. We review and discuss emerging applications of statistical and machine learning techniques in human microbiome studies and introduce the COST Action CA18131 "ML4Microbiome" that brings together microbiome researchers and machine learning experts to address current challenges such as standardization of analysis pipelines for reproducibility of data analysis results, benchmarking, improvement, or development of existing and new tools and ontologies.
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Affiliation(s)
- Isabel Moreno-Indias
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clìnica de Endocrinologìa y Nutrición, Hospital Clìnico Universitario Virgen de la Victoria, Universidad de Málaga, Málaga, Spain
- Centro de Investigación Biomeìdica en Red de Fisiopatologtìa de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Leo Lahti
- Department of Computing, University of Turku, Turku, Finland
| | - Miroslava Nedyalkova
- Human Genetics and Disease Mechanisms, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Ilze Elbere
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | | | - Muhamed Adilovic
- Department of Genetics and Bioengineering, International University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Onder Aydemir
- Department of Electrical and Electronics Engineering, Karadeniz Technical University, Trabzon, Turkey
| | - Burcu Bakir-Gungor
- Department of Computer Engineering, Abdullah Gul University, Kayseri, Turkey
| | | | - Domenica D’Elia
- Department for Biomedical Sciences, Institute for Biomedical Technologies, National Research Council, Bari, Italy
| | - Mahesh S. Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Laurent Falquet
- Department of Biology, University of Fribourg, Fribourg, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Aycan Gundogdu
- Department of Microbiology and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Metagenomics Laboratory, Genome and Stem Cell Center (GenKök), Erciyes University, Kayseri, Turkey
| | - Karel Hron
- Department of Mathematical Analysis and Applications of Mathematics, Palacký University, Olomouc, Czechia
| | | | - Marta B. Lopes
- NOVA Laboratory for Computer Science and Informatics (NOVA LINCS), FCT, UNL, Caparica, Portugal
- Centro de Matemática e Aplicações (CMA), FCT, UNL, Caparica, Portugal
| | - Laura Judith Marcos-Zambrano
- Computational Biology Group, Precision Nutrition and Cancer Research Program, IMDEA Food Institute, Madrid, Spain
| | - Cláudia Marques
- CINTESIS, NOVA Medical School, NMS, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Michael Mason
- Computational Oncology, Sage Bionetworks, Seattle, WA, United States
| | - Patrick May
- Bioinformatics Core, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Lejla Pašić
- Sarajevo Medical School, University Sarajevo School of Science and Technology, Sarajevo, Bosnia and Herzegovina
| | - Gianvito Pio
- Department of Computer Science, University of Bari Aldo Moro, Bari, Italy
| | - Sándor Pongor
- Faculty of Information Tehnology and Bionics, Pázmány University, Budapest, Hungary
| | - Vasilis J. Promponas
- Bioinformatics Research Laboratory, Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
| | - Piotr Przymus
- Faculty of Mathematics and Computer Science, Nicolaus Copernicus University, Toruñ, Poland
| | - Julio Saez-Rodriguez
- Institute of Computational Biomedicine, Heidelberg University, Faculty of Medicine and Heidelberg University Hospital, Heidelberg, Germany
| | - Alexia Sampri
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, University of Manchester, Manchester, United Kingdom
| | - Rajesh Shigdel
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Blaz Stres
- Jozef Stefan Institute, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Faculty of Civil and Geodetic Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Ramona Suharoschi
- Molecular Nutrition and Proteomics Lab, Faculty of the Food Science and Technology, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca, Romania
| | - Jaak Truu
- Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia
| | - Ciprian-Octavian Truică
- Department of Computer Science and Engineering, Faculty of Automatic Control and Computers, University Politehnica of Bucharest, Bucharest, Romania
| | - Baiba Vilne
- Bioinformatics Research Unit, Riga Stradins University, Riga, Latvia
| | - Dimitrios Vlachakis
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Ercument Yilmaz
- Department of Computer Technologies, Karadeniz Technical University, Trabzon, Turkey
| | - Georg Zeller
- European Molecular Biology Laboratory, Structural and Computational Biology Unit, Heidelberg, Germany
| | - Aldert L. Zomer
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - David Gómez-Cabrero
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), IdiSNA, Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Marcus J. Claesson
- School of Microbiology and APC Microbiome Ireland, University College Cork, Cork, Ireland
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Bao P, Li C, Ou H, Ji S, Chen Y, Gao J, Yue X, Shen J, Ding D. A peptide-based aggregation-induced emission bioprobe for selective detection and photodynamic killing of Gram-negative bacteria. Biomater Sci 2021; 9:437-442. [PMID: 33146160 DOI: 10.1039/d0bm01330g] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A bioprobe with aggregation-induced emission characteristics is developed, which can visualize and photodynamically ablate Gram-negative bacteria in a selective manner.
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Affiliation(s)
- Pingping Bao
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Cong Li
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Hanlin Ou
- Key Laboratory of Bioactive Materials
- Ministry of Education
- and College of Life Sciences
- Nankai University
- Tianjin 300071
| | - Shenglu Ji
- Key Laboratory of Bioactive Materials
- Ministry of Education
- and College of Life Sciences
- Nankai University
- Tianjin 300071
| | - Yao Chen
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Jing Gao
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Xin Yue
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Jing Shen
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
| | - Dan Ding
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction
- Tianjin Stomatological Hospital
- The Affiliated Stomatological Hospital of Nankai University
- Tianjin 300041
- China
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Nutraceuticals and probiotics in the management of psychiatric and neurological disorders: A focus on microbiota-gut-brain-immune axis. Brain Behav Immun 2020; 90:403-419. [PMID: 32889082 DOI: 10.1016/j.bbi.2020.08.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 08/20/2020] [Accepted: 08/26/2020] [Indexed: 12/12/2022] Open
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Processing Has Differential Effects on Microbiota-Accessible Carbohydrates in Whole Grains during In Vitro Fermentation. Appl Environ Microbiol 2020; 86:AEM.01705-20. [PMID: 32859598 DOI: 10.1128/aem.01705-20] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/24/2020] [Indexed: 12/25/2022] Open
Abstract
Whole grains are generally low in nondigestible carbohydrates that are available for fermentation by the gut microbiota, or microbiota-accessible carbohydrates (MAC). However, there is potential to increase MAC in whole grains through food processing. Five processing methods: boiling, extrusion, sourdough bread, unleavened bread, and yeast bread, were applied to whole wheat flour and then subjected to in vitro digestion followed by fermentation using fecal microbiomes from 10 subjects. The microbiomes separated into 2 groups: those that showed high carbohydrate utilization (CU) and those that exhibited low CU. The former exhibited not only enhanced CU but also increased butyrate production (MAC, 31.1 ± 1.1% versus 19.3 ± 1.2%, P < 0.001; butyrate, 5.26 ± 0.26 mM versus 3.17 ± 0.27 mM, P < 0.001). Only the microbiomes in the high-CU group showed significant differences among processing methods: extrusion and sourdough bread led to dichotomous results for MAC and short-chain fatty acid production, where extrusion resulted in high MAC but low butyrate production while sourdough bread resulted in low MAC but high butyrate production. Extrusion led to a noticeable decrease in α-diversity and some members of the families Ruminococcaceae and Lachnospiraceae, with increases in Acinetobacter, Enterococcus, and Staphylococcaceae This study demonstrated that only microbiomes that exhibited high CU responded to the effects of processing by showing significant differences among processing methods. In these microbiomes, extrusion was able to increase accessibility of the cell wall polysaccharides but did not increase butyrate production. In contrast, sourdough bread led to high butyrate production by supporting important butyrate-producers in the families Lachnospiraceae and Ruminococcaceae IMPORTANCE Dietary nondigestible carbohydrates, or dietary fiber, have long been recognized for their beneficial health effects. However, recent studies have revealed that fermentation of nondigestible carbohydrates by gut bacteria is critical in mediating many of the health-promoting properties of dietary fibers. Whole grains are excellent candidates to supply the microbiome with a plentiful source of nondigestible carbohydrates, although unfortunately a majority of these carbohydrates in whole grains are not available to gut bacteria for fermentation. Processing is known to alter the structural characteristics of nondigestible carbohydrates in whole grains, yet the relationship between these effects and gut microbial fermentation is unknown. This research aimed to address this important research gap by identifying interactions between whole-grain processing and gut bacteria, with the ultimate goal of increasing the availability of nondigestible carbohydrates for fermentation to enhance host health.
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Xie L, Zhang Y, Gao J, Li X, Wang H. Nitrate exposure induces intestinal microbiota dysbiosis and metabolism disorder in Bufo gargarizans tadpoles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114712. [PMID: 32402709 DOI: 10.1016/j.envpol.2020.114712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Excess nitrate has been reported to be associated with many adverse effects in humans and experimental animals. However, there is a paucity of information of the effects of nitrate on intestinal microbial community. In this study, the effects of nitrate on development, intestinal microbial community, and metabolites of Bufo gargarizans tadpoles were investigated. B. gargarizans were exposed to control, 5, 20 and 100 mg/L nitrate-nitrogen (NO3-N) from eggs to Gosner stage 38. Our data showed that the body size of tadpoles significantly decreased in the 20 and 100 mg/L NO3-N treatment group when compared to control tadpoles. Exposure to 20 and 100 mg/L NO3-N also caused indistinct cell boundaries and nuclear pyknosis of mucosal epithelial cells in intestine of tadpoles. In addition, exposure to NO3-N significantly altered the intestinal microbiota diversity and structure. The facultative anaerobic Proteobacteria occupy the niche of the obligately anaerobic Bacteroidetes and Fusobacteria under the pressure of NO3-N exposure. According to the results of functional prediction, NO3-N exposure affected the fatty acid metabolism pathway and amino acid metabolism pathway. The whole-body fatty acid components were found to be changed after exposure to 100 mg/L NO3-N. Therefore, we concluded that exposure to 20 and 100 mg/L NO3-N could induce deficient nutrient absorption in intestine, resulting in malnutrition of B. gargarizans tadpoles. High levels of NO3-N could also change the intestinal microbial communities, causing dysregulation of fatty acid metabolism and amino acid metabolism in B. gargarizans tadpoles.
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Affiliation(s)
- Lei Xie
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China; College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, China
| | - Yuhui Zhang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Jinshu Gao
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Xinyi Li
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China.
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Fleischhacker SE, Woteki CE, Coates PM, Hubbard VS, Flaherty GE, Glickman DR, Harkin TR, Kessler D, Li WW, Loscalzo J, Parekh A, Rowe S, Stover PJ, Tagtow A, Yun AJ, Mozaffarian D. Strengthening national nutrition research: rationale and options for a new coordinated federal research effort and authority. Am J Clin Nutr 2020; 112:721-769. [PMID: 32687145 PMCID: PMC7454258 DOI: 10.1093/ajcn/nqaa179] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The US faces remarkable food and nutrition challenges. A new federal effort to strengthen and coordinate nutrition research could rapidly generate the evidence base needed to address these multiple national challenges. However, the relevant characteristics of such an effort have been uncertain. OBJECTIVES Our aim was to provide an objective, informative summary of 1) the mounting diet-related health burdens facing our nation and corresponding economic, health equity, national security, and sustainability implications; 2) the current federal nutrition research landscape and existing mechanisms for its coordination; 3) the opportunities for and potential impact of new fundamental, clinical, public health, food and agricultural, and translational scientific discoveries; and 4) the various options for further strengthening and coordinating federal nutrition research, including corresponding advantages, disadvantages, and potential executive and legislative considerations. METHODS We reviewed government and other published documents on federal nutrition research; held various discussions with expert groups, advocacy organizations, and scientific societies; and held in-person or phone meetings with >50 federal staff in executive and legislative roles, as well as with a variety of other stakeholders in academic, industry, and nongovernment organizations. RESULTS Stark national nutrition challenges were identified. More Americans are sick than are healthy, largely from rising diet-related illnesses. These conditions create tremendous strains on productivity, health care costs, health disparities, government budgets, US economic competitiveness, and military readiness. The coronavirus disease 2019 (COVID-19) outbreak has further laid bare these strains, including food insecurity, major diet-related comorbidities for poor outcomes from COVID-19 such as diabetes, hypertension, and obesity, and insufficient surveillance on and coordination of our food system. More than 10 federal departments and agencies currently invest in critical nutrition research, yet with relatively flat investments over several decades. Coordination also remains suboptimal, documented by multiple governmental reports over 50 years. Greater harmonization and expansion of federal investment in nutrition science, not a silo-ing or rearrangement of existing investments, has tremendous potential to generate new discoveries to improve and sustain the health of all Americans. Two identified key strategies to achieve this were as follows: 1) a new authority for robust cross-governmental coordination of nutrition research and other nutrition-related policy and 2) strengthened authority, investment, and coordination for nutrition research within the NIH. These strategies were found to be complementary, together catalyzing important new science, partnerships, coordination, and returns on investment. Additional complementary actions to accelerate federal nutrition research were identified at the USDA. CONCLUSIONS The need and opportunities for strengthened federal nutrition research are clear, with specific identified options to help create the new leadership, strategic planning, coordination, and investment the nation requires to address the multiple nutrition-related challenges and grasp the opportunities before us.
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Affiliation(s)
| | - Catherine E Woteki
- University of Virginia Biocomplexity Institute and Initiative, Arlington, VA, USA
| | - Paul M Coates
- Retired, National Institutes of Health, Bethesda, MD, USA
| | - Van S Hubbard
- Retired, National Institutes of Health, Bethesda, MD, USA
| | - Grace E Flaherty
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy at Tufts University, Boston, MA, USA
| | | | | | - David Kessler
- Former Food and Drug Administration Commissioner, College Park, MD, USA
| | | | - Joseph Loscalzo
- Department of Medicine at Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | - Patrick J Stover
- Texas A&M AgriLife, Texas A&M College of Agriculture and Life Sciences, and Texas A&M AgriLife Research, College Station, TX, USA
| | | | | | - Dariush Mozaffarian
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy at Tufts University, Boston, MA, USA
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Wu Y, Wan J, Choe U, Pham Q, Schoene NW, He Q, Li B, Yu L, Wang TTY. Interactions Between Food and Gut Microbiota: Impact on Human Health. Annu Rev Food Sci Technol 2020; 10:389-408. [PMID: 30908952 DOI: 10.1146/annurev-food-032818-121303] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Understanding the relationship between food and the gut microbiota, their interactions, and how each modulates the other is critical for successful promotion of human health. This review seeks to summarize ( a) the current knowledge on the effects of food and food components on gut microbiota and ( b) the association between gut microbiota, consumption of food, and food bioactive components and the resulting beneficial health outcomes. Our goal is to provide state-of-the-art information on food and gut microbiota interactions and to stimulate discussions and research approaches that will move the field forward.
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Affiliation(s)
- Yanbei Wu
- College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China.,Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA; .,Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Jiawei Wan
- Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA; .,Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA.,College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Uyory Choe
- Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA; .,Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Quynhchi Pham
- Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA;
| | - Norberta W Schoene
- Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA;
| | - Qiang He
- College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Liangli Yu
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Thomas T Y Wang
- Diet Genomics and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA;
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Amicucci MJ, Nandita E, Galermo AG, Castillo JJ, Chen S, Park D, Smilowitz JT, German JB, Mills DA, Lebrilla CB. A nonenzymatic method for cleaving polysaccharides to yield oligosaccharides for structural analysis. Nat Commun 2020; 11:3963. [PMID: 32770134 PMCID: PMC7414865 DOI: 10.1038/s41467-020-17778-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/15/2020] [Indexed: 12/22/2022] Open
Abstract
Polysaccharides are the most abundant biomolecules in nature, but are the least understood in terms of their chemical structures and biological functions. Polysaccharides cannot be simply sequenced because they are often highly branched and lack a uniform structure. Furthermore, large polymeric structures cannot be directly analyzed by mass spectrometry techniques, a problem that has been solved for polynucleotides and proteins. While restriction enzymes have advanced genomic analysis, and trypsin has advanced proteomic analysis, there has been no equivalent enzyme for universal polysaccharide digestion. We describe the development and application of a chemical method for producing oligosaccharides from polysaccharides. The released oligosaccharides are characterized by advanced liquid chromatography-mass spectrometry (LC-MS) methods with high sensitivity, accuracy and throughput. The technique is first used to identify polysaccharides by oligosaccharide fingerprinting. Next, the polysaccharide compositions of food and feces are determined, further illustrating the utility of technique in food and clinical studies.
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Affiliation(s)
- Matthew J Amicucci
- Agricultural and Environmental Chemistry Graduate Group, University of California, Davis, CA, USA
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Eshani Nandita
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Ace G Galermo
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Juan Jose Castillo
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Siyu Chen
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Dayoung Park
- Department of Chemistry, University of California, Davis, CA, USA
- Foods For Health Institute, University of California, Davis, CA, USA
| | - Jennifer T Smilowitz
- Foods For Health Institute, University of California, Davis, CA, USA
- Department of Food Science and Technology, University of California, Davis, CA, USA
| | - J Bruce German
- Foods For Health Institute, University of California, Davis, CA, USA
- Department of Food Science and Technology, University of California, Davis, CA, USA
| | - David A Mills
- Foods For Health Institute, University of California, Davis, CA, USA
- Department of Food Science and Technology, University of California, Davis, CA, USA
| | - Carlito B Lebrilla
- Agricultural and Environmental Chemistry Graduate Group, University of California, Davis, CA, USA.
- Department of Chemistry, University of California, Davis, CA, USA.
- Foods For Health Institute, University of California, Davis, CA, USA.
- Department of Biochemistry and Molecular Medicine, University of California, Davis, CA, USA.
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36
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Sutherland VL, McQueen CA, Mendrick D, Gulezian D, Cerniglia C, Foley S, Forry S, Khare S, Liang X, Manautou JE, Tweedie D, Young H, Alekseyenko AV, Burns F, Dietert R, Wilson A, Chen C. The Gut Microbiome and Xenobiotics: Identifying Knowledge Gaps. Toxicol Sci 2020; 176:1-10. [PMID: 32658296 PMCID: PMC7850111 DOI: 10.1093/toxsci/kfaa060] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
There is an increasing awareness that the gut microbiome plays a critical role in human health and disease, but mechanistic insights are often lacking. In June 2018, the Health and Environmental Sciences Institute (HESI) held a workshop, "The Gut Microbiome: Markers of Human Health, Drug Efficacy and Xenobiotic Toxicity" (https://hesiglobal.org/event/the-gut-microbiome-workshop) to identify data gaps in determining how gut microbiome alterations may affect human health. Speakers and stakeholders from academia, government, and industry addressed multiple topics including the current science on the gut microbiome, endogenous and exogenous metabolites, biomarkers, and model systems. The workshop presentations and breakout group discussions formed the basis for identifying data gaps and research needs. Two critical issues that emerged were defining the microbial composition and function related to health and developing standards for models, methods and analysis in order to increase the ability to compare and replicate studies. A series of key recommendations were formulated to focus efforts to further understand host-microbiome interactions and the consequences of exposure to xenobiotics as well as identifying biomarkers of microbiome-associated disease and toxicity.
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Affiliation(s)
- Vicki L Sutherland
- National Toxicology Program, National Institute of Environmental Health Sciences, Durham, North Carolina 27709
| | - Charlene A McQueen
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721
| | - Donna Mendrick
- National Center for Toxicological Research, US Food and Drug Administration, Silver Spring, MD 20993
| | | | - Carl Cerniglia
- Department of Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., Kenilworth, New Jersey 07033
| | - Steven Foley
- Department of Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., Kenilworth, New Jersey 07033
| | - Sam Forry
- Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Sangeeta Khare
- National Center for Toxicological Research, US Food and Drug Administration, Silver Spring, MD 20993
| | - Xue Liang
- Merck Exploratory Science Center, Merck & Co., Inc., Cambridge, Massachusetts 02141
| | - Jose E Manautou
- Department of Pharmaceutics, University of Connecticut, Storrs, Connecticut 06269
| | - Donald Tweedie
- Department of Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., Kenilworth, New Jersey 07033
| | - Howard Young
- Laboratory of Cancer Immunometabolism, Center for Cancer Research, NCI Frederick, Frederick, Maryland 21702
| | - Alexander V Alekseyenko
- Program for Human Microbiome Research, Biomedical Informatics Center, Department of Public Health Sciences, Department of Oral Health Sciences, Department of Healthcare Leadership & Management, Medical University of South Carolina, Charleston, South Carolina 29425
| | | | - Rod Dietert
- Department of Microbiology and Immunology, Cornell University, Ithaca, New York 14850
| | - Alan Wilson
- Department of Drug Metabolism, Pharmacokinetics, Toxicology and Pathology, Lexicon Pharmaceuticals, Houston, Texas 77381
| | - Connie Chen
- Health and Environmental Sciences Institute, Washington, District of Columbia 20005
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Ganal-Vonarburg SC, Hornef MW, Macpherson AJ. Microbial-host molecular exchange and its functional consequences in early mammalian life. Science 2020; 368:604-607. [PMID: 32381716 DOI: 10.1126/science.aba0478] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Molecules from symbiotic microorganisms pervasively infiltrate almost every organ system of a mammalian host, marking the initiation of microbial-host mutualism in utero, long before the newborn acquires its own microbiota. Starting from in utero development, when maternal microbial molecules can penetrate the placental barrier, we follow the different phases of adaptation through the life events of birth, lactation, and weaning, as the young mammal adapts to the microbes that colonize its body surfaces. The vulnerability of early-life mammals is mitigated by maternal detoxification and excretion mechanisms, the protective effects of maternal milk, and modulation of neonatal receptor systems. Host adaptations to microbial exposure during specific developmental windows are critical to ensure organ function for development, growth, and immunity.
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Affiliation(s)
- Stephanie C Ganal-Vonarburg
- Universitätsklinik für Viszerale Chirurgie und Medizin, Inselspital, Bern University Hospital, Department for BioMedical Research (DBMR), University of Bern, Murtenstrasse 35, 3008 Bern, Switzerland
| | - Mathias W Hornef
- Institute for Medical Microbiology, RWTH University Hospital, Pauwelsstrasse 30, D-52074 Aachen, Germany
| | - Andrew J Macpherson
- Universitätsklinik für Viszerale Chirurgie und Medizin, Inselspital, Bern University Hospital, Department for BioMedical Research (DBMR), University of Bern, Murtenstrasse 35, 3008 Bern, Switzerland.
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Abstract
PURPOSE OF REVIEW Humans and their commensal microbiota coexist in a complex ecosystem molded by evolutionary and ecological factors. Ecological opportunity is the prospective, lineage-specific characteristic of an environment that contains both niche availability leading to persistence coupled with niche discordance that drives selection within that lineage. The newborn gut ecosystem presents vast ecological opportunity. Herein, factors affecting perinatal infant microbiome composition are discussed. RECENT FINDINGS Establishing a healthy microbiota in early life is required for immunological programming and prevention of both short-term and long-term health outcomes. The holobiont theory infers that host genetics contributes to microbiome composition. However, in most human studies, environmental factors are predominantly responsible for microbiome composition and function. Key perinatal elements are route of delivery, diet and the environment in which that infant resides. Vaginal delivery seeds an initial microbiome, and breastfeeding refines the community by providing additional microbes, human milk oligosaccharides and immunological proteins. SUMMARY Early life represents an opportunity to implement clinical practices that promote the optimal seeding and feeding of the gut microbial ecosystem. These include reducing nonemergent cesarean deliveries, avoiding the use of antibiotics, and promoting exclusive breastfeeding.
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Affiliation(s)
- Sharon M Donovan
- Department of Food Science and Human Nutrition, Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana-Champaign, Illinois, USA
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39
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Eetemadi A, Rai N, Pereira BMP, Kim M, Schmitz H, Tagkopoulos I. The Computational Diet: A Review of Computational Methods Across Diet, Microbiome, and Health. Front Microbiol 2020; 11:393. [PMID: 32318028 PMCID: PMC7146706 DOI: 10.3389/fmicb.2020.00393] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
Food and human health are inextricably linked. As such, revolutionary impacts on health have been derived from advances in the production and distribution of food relating to food safety and fortification with micronutrients. During the past two decades, it has become apparent that the human microbiome has the potential to modulate health, including in ways that may be related to diet and the composition of specific foods. Despite the excitement and potential surrounding this area, the complexity of the gut microbiome, the chemical composition of food, and their interplay in situ remains a daunting task to fully understand. However, recent advances in high-throughput sequencing, metabolomics profiling, compositional analysis of food, and the emergence of electronic health records provide new sources of data that can contribute to addressing this challenge. Computational science will play an essential role in this effort as it will provide the foundation to integrate these data layers and derive insights capable of revealing and understanding the complex interactions between diet, gut microbiome, and health. Here, we review the current knowledge on diet-health-gut microbiota, relevant data sources, bioinformatics tools, machine learning capabilities, as well as the intellectual property and legislative regulatory landscape. We provide guidance on employing machine learning and data analytics, identify gaps in current methods, and describe new scenarios to be unlocked in the next few years in the context of current knowledge.
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Affiliation(s)
- Ameen Eetemadi
- Department of Computer Science, University of California, Davis, Davis, CA, United States
- Genome Center, University of California, Davis, Davis, CA, United States
| | - Navneet Rai
- Genome Center, University of California, Davis, Davis, CA, United States
| | - Beatriz Merchel Piovesan Pereira
- Genome Center, University of California, Davis, Davis, CA, United States
- Department of Microbiology, University of California, Davis, Davis, CA, United States
| | - Minseung Kim
- Department of Computer Science, University of California, Davis, Davis, CA, United States
- Genome Center, University of California, Davis, Davis, CA, United States
- Process Integration and Predictive Analytics (PIPA LLC), Davis, CA, United States
| | - Harold Schmitz
- Graduate School of Management, University of California, Davis, Davis, CA, United States
| | - Ilias Tagkopoulos
- Department of Computer Science, University of California, Davis, Davis, CA, United States
- Genome Center, University of California, Davis, Davis, CA, United States
- Process Integration and Predictive Analytics (PIPA LLC), Davis, CA, United States
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40
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Understanding the nutritional functions of thermally-processed whole grain highland barley in vitro and in vivo. Food Chem 2020; 310:125979. [DOI: 10.1016/j.foodchem.2019.125979] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/26/2019] [Accepted: 11/28/2019] [Indexed: 12/21/2022]
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41
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Microbiome Composition in Pediatric Populations from Birth to Adolescence: Impact of Diet and Prebiotic and Probiotic Interventions. Dig Dis Sci 2020; 65:706-722. [PMID: 32002758 PMCID: PMC7046124 DOI: 10.1007/s10620-020-06092-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Diet is a key regulator of microbiome structure and function across the lifespan. Microbial colonization in the first year of life has been actively researched; however, studies during childhood are sparse. Herein, the impact of dietary intake and pre- and probiotic interventions on microbiome composition of healthy infants and children from birth to adolescence is discussed. The microbiome of breastfed infants has lower microbial diversity and richness, higher Proteobacteria, and lower Bacteroidetes and Firmicutes than those formula-fed. As children consume more complex diets, associations between dietary patterns and the microbiota emerge. Like adults, the microbiota of children consuming a Western-style diet is associated with greater Bacteroidaceae and Ruminococcaceae and lower Prevotellaceae. Dietary fibers and pre- or/and probiotics have been tested to modulate the gut microbiota in early life. Human milk oligosaccharides and prebiotics added to infant formula are bifidogenic and decrease pathogens. In children, prebiotics, such as inulin, increase Bifidobacterium abundance and dietary fibers reduce fecal pH and increase alpha diversity and calcium absorption. Probiotics have been administered to the mother during pregnancy and breastfeeding or directly to the infant/child. Findings on maternal probiotic administration on bacterial taxa are inconsistent. When given directly to the infant/child, some changes in individual taxa are observed, but rarely is overall alpha or beta diversity affected. Cesarean-delivered infants appear to benefit to a greater degree than those born vaginally. Infancy and childhood represent an opportunity to beneficially manipulate the microbiome through dietary or prebiotic interventions, which has the potential to affect both short- and long-term health outcomes.
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Yu X, Wu Z, Song Z, Zhang H, Zhan J, Yu H, Huang H, Yang B, Xie L, Dai X, Zhao W, Yu J, Wu L. Single-Anastomosis Duodenal Jejunal Bypass Improve Glucose Metabolism by Regulating Gut Microbiota and Short-Chain Fatty Acids in Goto-Kakisaki Rats. Front Microbiol 2020; 11:273. [PMID: 32153548 PMCID: PMC7047167 DOI: 10.3389/fmicb.2020.00273] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 02/06/2020] [Indexed: 12/13/2022] Open
Abstract
In recent years, bariatric surgery has emerged as a promising treatment for type 2 diabetes. Bariatric surgery is known to cause alterations in the relative abundance and composition of gut microbiota, which may lead to alterations in the levels of Short-Chain Fatty Acids (SCFAs) that are produced during fermentation by gut microbes. However, little is known about the mechanism of improved glucose metabolism mediated by gut microbiota following bariatric surgery. The aim of our study was to explore whether changes in gut microbiota and in fecal SCFA could be detected following single-anastomosis duodenal jejunal bypass (DJB-sa) surgery, a type of bariatric surgery, and whether these alterations might be related to the improvement of glucose metabolism. To this end, we performed DJB-sa or SHAM surgery on Goto-Kakisaki (GK) rats. We then compared the glucose metabolism as well as changes in gut microbiota and SCFAs levels between both groups. Our results showed that DJB-sa surgery was associated with a significant decrease in fasting blood glucose (FBG), intraperitoneal glucose tolerance test (IPGTT), and fasting serum insulin (FSI). And, DJB-sa led to a change in the composition of gut microbiota including an increase in the relative abundance of SCFA-producing bacteria (Bifidobacterium and Subdoligranulum). Moreover, the levels of six SCFAs in feces, as well as the intestinal expression of SCFA receptors including G-protein-coupled receptor 41 (GPR41), G-protein-coupled receptor 43 (GPR43), and G-protein-coupled receptor 109A (GPR109A), and the expression of Glucagon-like peptide-1 (GLP-1) displayed a significant increase following DJB-sa compared with the Sham group. Thus, the gut microbiota may contribute to the improvement of glucose metabolism in type 2 diabetes following DJB-sa. In conclusion, our study shows that DJB-sa improves glucose metabolism by modulating gut microbiota and by increasing short-chain fatty acid production.
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Affiliation(s)
- Xiang Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhuangwei Wu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhigao Song
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongbin Zhang
- Department of Medical Experimental, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China
| | - Junfang Zhan
- Health Management Center, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Hao Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hongyan Huang
- Department of Metabolic Surgery, UDM Medical Group, Guangzhou, China.,Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Baolin Yang
- Department of Metabolic Surgery, UDM Medical Group, Guangzhou, China.,Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Lang Xie
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaojiang Dai
- Department of Metabolic Surgery, UDM Medical Group, Guangzhou, China.,Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Weiguo Zhao
- Department of Metabolic Surgery, UDM Medical Group, Guangzhou, China.,Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Jinlong Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Liangping Wu
- Department of Metabolic Surgery, UDM Medical Group, Guangzhou, China.,Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
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Johnson AJ, Vangay P, Al-Ghalith GA, Hillmann BM, Ward TL, Shields-Cutler RR, Kim AD, Shmagel AK, Syed AN, Walter J, Menon R, Koecher K, Knights D. Daily Sampling Reveals Personalized Diet-Microbiome Associations in Humans. Cell Host Microbe 2019; 25:789-802.e5. [PMID: 31194939 DOI: 10.1016/j.chom.2019.05.005] [Citation(s) in RCA: 372] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 01/31/2019] [Accepted: 05/09/2019] [Indexed: 02/06/2023]
Abstract
Diet is a key determinant of human gut microbiome variation. However, the fine-scale relationships between daily food choices and human gut microbiome composition remain unexplored. Here, we used multivariate methods to integrate 24-h food records and fecal shotgun metagenomes from 34 healthy human subjects collected daily over 17 days. Microbiome composition depended on multiple days of dietary history and was more strongly associated with food choices than with conventional nutrient profiles, and daily microbial responses to diet were highly personalized. Data from two subjects consuming only meal replacement beverages suggest that a monotonous diet does not induce microbiome stability in humans, and instead, overall dietary diversity associates with microbiome stability. Our work provides key methodological insights for future diet-microbiome studies and suggests that food-based interventions seeking to modulate the gut microbiota may need to be tailored to the individual microbiome. Trial Registration: ClinicalTrials.gov: NCT03610477.
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Affiliation(s)
- Abigail J Johnson
- BioTechnology Institute, University of Minnesota, Saint Paul, MN 55108, USA
| | - Pajau Vangay
- Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Gabriel A Al-Ghalith
- Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Benjamin M Hillmann
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | | | | | - Austin D Kim
- Department of Mathematics, Statistics, and Computer Science, Macalester College, St. Paul, MN 55105, USA
| | - Anna Konstantinovna Shmagel
- Division of Rheumatic and Autoimmune Diseases, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA
| | - Arzang N Syed
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
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- Microbial Engineering Program, Biotechnology Institute, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jens Walter
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Ravi Menon
- Bell Institute of Health & Nutrition, General Mills Inc, Minneapolis, MN 55427, USA
| | - Katie Koecher
- Bell Institute of Health & Nutrition, General Mills Inc, Minneapolis, MN 55427, USA
| | - Dan Knights
- BioTechnology Institute, University of Minnesota, Saint Paul, MN 55108, USA; Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
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44
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Venkata Subbaiah KC, Hedaya O, Wu J, Jiang F, Yao P. Mammalian RNA switches: Molecular rheostats in gene regulation, disease, and medicine. Comput Struct Biotechnol J 2019; 17:1326-1338. [PMID: 31741723 PMCID: PMC6849081 DOI: 10.1016/j.csbj.2019.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 09/30/2019] [Accepted: 10/07/2019] [Indexed: 01/12/2023] Open
Abstract
Alteration of RNA structure by environmental signals is a fundamental mechanism of gene regulation. For example, the riboswitch is a noncoding RNA regulatory element that binds a small molecule and causes a structural change in the RNA, thereby regulating transcription, splicing, or translation of an mRNA. The role of riboswitches in metabolite sensing and gene regulation in bacteria and other lower species was reported almost two decades ago, but riboswitches have not yet been discovered in mammals. An analog of the riboswitch, the protein-directed RNA switch (PDRS), has been identified as an important regulatory mechanism of gene expression in mammalian cells. RNA-binding proteins and microRNAs are two major executors of PDRS via their interaction with target transcripts in mammals. These protein-RNA interactions influence cellular functions by integrating environmental signals and intracellular pathways from disparate stimuli to modulate stability or translation of specific mRNAs. The discovery of a riboswitch in eukaryotes that is composed of a single class of thiamine pyrophosphate (TPP) suggests that additional ligand-sensing RNAs may be present to control eukaryotic or mammalian gene expression. In this review, we focus on protein-directed RNA switch mechanisms in mammals. We offer perspectives on the potential discovery of mammalian protein-directed and compound-dependent RNA switches that are related to human disease and medicine.
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Affiliation(s)
- Kadiam C Venkata Subbaiah
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Omar Hedaya
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Jiangbin Wu
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Feng Jiang
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Peng Yao
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,The Center for RNA Biology, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,The Center for Biomedical Informatics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
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Park H, He A, Lodhi IJ. Lipid Regulators of Thermogenic Fat Activation. Trends Endocrinol Metab 2019; 30:710-723. [PMID: 31422871 PMCID: PMC6779522 DOI: 10.1016/j.tem.2019.07.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/16/2022]
Abstract
The global prevalence of obesity continues to increase, suggesting a need for alternative treatment approaches. Targeting brown fat function to promote energy expenditure represents one such approach. Brown adipocytes and the related beige adipocytes oxidize fatty acids and glucose to generate heat and are activated by cold exposure or consumption of high-calorie diets. Alternative, more practical means to activate thermogenic fat are needed. Here, we review emerging data suggesting new roles for lipids in activating thermogenesis that extend beyond their serving as a fuel source for heat generation. Lipids have also been implicated in mediating interorgan communication, crosstalk between organelles, and cellular signaling regulating thermogenesis. Understanding how lipids regulate thermogenesis could identify innovative therapeutic interventions for obesity.
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Affiliation(s)
- Hongsuk Park
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Anyuan He
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Irfan J Lodhi
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
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46
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Bourke CD, Jones KDJ, Prendergast AJ. Current Understanding of Innate Immune Cell Dysfunction in Childhood Undernutrition. Front Immunol 2019; 10:1728. [PMID: 31417545 PMCID: PMC6681674 DOI: 10.3389/fimmu.2019.01728] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/09/2019] [Indexed: 12/13/2022] Open
Abstract
Undernutrition affects millions of children in low- and middle-income countries (LMIC) and underlies almost half of all deaths among children under 5 years old. The growth deficits that characterize childhood undernutrition (stunting and wasting) result from simultaneous underlying defects in multiple physiological processes, and current treatment regimens do not completely normalize these pathways. Most deaths among undernourished children are due to infections, indicating that their anti-pathogen immune responses are impaired. Defects in the body's first-line-of-defense against pathogens, the innate immune system, is a plausible yet understudied pathway that could contribute to this increased infection risk. In this review, we discuss the evidence for innate immune cell dysfunction from cohort studies of childhood undernutrition in LMIC, highlighting knowledge gaps in almost all innate immune cell types. We supplement these gaps with insights from relevant experimental models and make recommendations for how human and animal studies could be improved. A better understanding of innate immune function could inform future tractable immune-targeted interventions for childhood undernutrition to reduce mortality and improve long-term health, growth and development.
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Affiliation(s)
- Claire D Bourke
- Centre for Genomics & Child Health, Blizard Institute, Queen Mary University of London, London, United Kingdom.,Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Kelsey D J Jones
- Kennedy Institute for Rheumatology, University of Oxford, Oxford, United Kingdom.,Department of Paediatric Gastroenterology & Nutrition, University of Oxford NHS Foundation Trust, Oxford, United Kingdom
| | - Andrew J Prendergast
- Centre for Genomics & Child Health, Blizard Institute, Queen Mary University of London, London, United Kingdom.,Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
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47
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Singh RP. Glycan utilisation system in Bacteroides and Bifidobacteria and their roles in gut stability and health. Appl Microbiol Biotechnol 2019; 103:7287-7315. [PMID: 31332487 DOI: 10.1007/s00253-019-10012-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
Gut residential hundred trillion microbial cells are indispensable for maintaining gut homeostasis and impact on host physiology, development and immune systems. Many of them have displayed excellence in utilising dietary- and host-derived complex glycans and are producing useful postbiotics including short-chain fatty acids to primarily fuel different organs of the host. Therefore, employing individual microbiota is nowadays becoming a propitious target in biomedical for improving gut dysbiosis conditions of the host. Among other gut microbial communities, Bacteroides and Bifidobacteria are coevolved to utilise diverse ranges of diet- and host-derived glycans through harmonising distinct glycan utilisation systems. These gut symbionts frequently share digested oligosaccharides, carbohydrate-active enzymes and fermentable intermediate molecules for sustaining gut microbial symbiosis and improving fitness of own or other communities. Genomics approaches have provided unprecedented insights into these functions, but their precise mechanisms of action have poorly known. Sympathetic glycan-utilising strategy of each gut commensal will provide overview of mechanistic dynamic nature of the gut environment and will then assist in applying aptly personalised nutritional therapy. Thus, the review critically summarises cutting edge understanding of major plant- and host-derived glycan-utilising systems of Bacteroides and Bifidobacteria. Their evolutionary adaptation to gut environment and roles of postbiotics in human health are also highlighted.
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Affiliation(s)
- Ravindra Pal Singh
- Food and Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute (NABI), SAS, Nagar, Punjab, 140306, India.
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48
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Review: Are there indigenous Saccharomyces in the digestive tract of livestock animal species? Implications for health, nutrition and productivity traits. Animal 2019; 14:22-30. [PMID: 31303186 DOI: 10.1017/s1751731119001599] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
All livestock animal species harbour complex microbial communities throughout their digestive tract that support vital biochemical processes, thus sustaining health and productivity. In part as a consequence of the strong and ancient alliance between the host and its associated microbes, the gut microbiota is also closely related to productivity traits such as feed efficiency. This phenomenon can help researchers and producers develop new and more effective microbiome-based interventions using probiotics, also known as direct-fed microbials (DFMs), in Animal Science. Here, we focus on one type of such beneficial microorganisms, the yeast Saccharomyces. Saccharomyces is one of the most widely used microorganisms as a DFM in livestock operations. Numerous studies have investigated the effects of dietary supplementation with different species, strains and doses of Saccharomyces (mostly Saccharomyces cerevisiae) on gut microbial ecology, health, nutrition and productivity traits of several livestock species. However, the possible existence of Saccharomyces which are indigenous to the animals' digestive tract has received little attention and has never been the subject of a review. We for the first time provide a comprehensive review, with the objective of shedding light into the possible existence of indigenous Saccharomyces of the digestive tract of livestock. Saccharomyces cerevisiae is a nomadic yeast able to survive in a broad range of environments including soil, grass and silages. Therefore, it is very likely that cattle and other animals have been in direct contact with this and other types of Saccharomyces throughout their entire existence. However, to date, the majority of animal scientists seem to agree that the presence of Saccharomyces in any section of the gut only reflects dietary contamination; in other words, these are foreign organisms that are only transiently present in the gut. Importantly, this belief (i.e. that Saccharomyces come solely from the diet) is often not well grounded and does not necessarily hold for all the many other groups of microbes in the gut. In addition to summarizing the current body of literature involving Saccharomyces in the digestive tract, we discuss whether the beneficial effects associated with the consumption of Saccharomyces may be related to its foreign origin, though this concept may not necessarily satisfy the theories that have been proposed to explain probiotic efficacy in vivo. This novel review may prove useful for biomedical scientists and others wishing to improve health and productivity using Saccharomyces and other beneficial microorganisms.
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Nagpal R, Shively CA, Register TC, Craft S, Yadav H. Gut microbiome-Mediterranean diet interactions in improving host health. F1000Res 2019; 8:699. [PMID: 32704349 PMCID: PMC7359750 DOI: 10.12688/f1000research.18992.1] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/10/2019] [Indexed: 12/22/2022] Open
Abstract
The gut microbiota plays a fundamental role in host health and disease. Host diet is one of the most significant modulators of the gut microbial community and its metabolic activities. Evidence demonstrates that dietary patterns such as the 'Western diet' and perturbations in gut microbiome (dysbiosis) have strong associations with a wide range of human diseases, including obesity, metabolic syndrome, type-2 diabetes and cardiovascular diseases. However, consumption of Mediterranean-style diets is considered healthy and associated with the prevention of cardiovascular and metabolic diseases, colorectal cancers and many other diseases. Such beneficial effects of the Mediterranean diet might be attributed to high proportion of fibers, mono- and poly-unsaturated fatty acids, antioxidants and polyphenols. Concurrent literature has demonstrated beneficial modulation of the gut microbiome following a Mediterranean-style diet in humans as well as in experimental animal models such as rodents. We recently demonstrated similar positive changes in the gut microbiome of non-human primates consuming a Mediterranean-style diet for long term (30 months). Therefore, it is rational to speculate that this positive modulation of the gut microbiome diversity, composition and function is one of the main factors intermediating the health effects of Mediterranean diet on the host. The present perspective discusses the evidences that the Mediterranean diet induces gut microbiome modulation in rodents, non-human primates and human subjects, and discusses the potential role of gut microbiota and microbial metabolites as one of the fundamental catalysts intermediating various beneficial health effects of Mediterranean diet on the host.
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Affiliation(s)
- Ravinder Nagpal
- Division of Internal Medicine - Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
- Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
| | - Carol A. Shively
- Department of Pathology - Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
| | - Thomas C. Register
- Department of Pathology - Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
| | - Suzanne Craft
- Department of Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
| | - Hariom Yadav
- Division of Internal Medicine - Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
- Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, USA
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50
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Chen G, Chen R, Chen D, Ye H, Hu B, Zeng X, Liu Z. Tea Polysaccharides as Potential Therapeutic Options for Metabolic Diseases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5350-5360. [PMID: 30474370 DOI: 10.1021/acs.jafc.8b05338] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Tea polysaccharides (TPS) are regarded as some of the main bioactive constituents of tea made from the leaves and buds of the tea plant ( Camellia sinensis L.). An increasing number of studies have demonstrated that TPS can reduce the risk of type 2 diabetes, obesity, and other metabolic diseases. However, the potential mechanisms responsible for antidiabetic and antiobesogenic activities of TPS remain unclear. Therefore, the cellular and physiological mechanisms that underlie the antidiabetic and antiobesogenic effects, including antioxidant and anti-inflammation effects, inhibition of digestive enzymes, prevention of macronutrient absorption, and expression of gene and protein, were summarized in this review. Furthermore, the gastrointestinal functions of TPS and the role of gut microbiota in the prevention and treatment of metabolic diseases were discussed. It is expected that the present review will be helpful for enhancing our knowledge about the health-promoting effects of TPS on metabolic diseases and stimulating further works on TPS.
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Affiliation(s)
| | | | | | | | | | | | - Zhonghua Liu
- Key Laboratory of Ministry of Education for Tea Science , Hunan Agricultural University , Changsha , Hunan 410128 , People's Republic of China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients , Changsha , Hunan 410128 , People's Republic of China
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