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Wang K, Tao GZ, Salimi-Jazi F, Lin PY, Sun Z, Liu B, Sinclair T, Mostaghimi M, Dunn J, Sylvester KG. Butyrate induces development-dependent necrotizing enterocolitis-like intestinal epithelial injury via necroptosis. Pediatr Res 2023; 93:801-809. [PMID: 36202969 DOI: 10.1038/s41390-022-02333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 09/12/2022] [Accepted: 09/18/2022] [Indexed: 03/05/2023]
Abstract
BACKGROUND The accumulation of short-chain fatty acids (SCFAs) from bacterial fermentation may adversely affect the under-developed gut as observed in premature newborns at risk for necrotizing enterocolitis (NEC). This study explores the mechanism by which specific SCFA fermentation products may injure the premature newborn intestine mucosa leading to NEC-like intestinal cell injury. METHODS Intraluminal injections of sodium butyrate were administered to 14- and 28-day-old mice, whose small intestine and stool were harvested for analysis. Human intestinal epithelial stem cells (hIESCs) and differentiated enterocytes from preterm and term infants were treated with sodium butyrate at varying concentrations. Necrosulfonamide (NSA) and necrostatin-1 (Nec-1) were used to determine the protective effects of necroptosis inhibitors on butyrate-induced cell injury. RESULTS The more severe intestinal epithelial injury was observed in younger mice upon exposure to butyrate (p = 0.02). Enterocytes from preterm newborns demonstrated a significant increase in sensitivity to butyrate-induced cell injury compared to term newborn enterocytes (p = 0.068, hIESCs; p = 0.038, differentiated cells). NSA and Nec-1 significantly inhibited the cell death induced by butyrate. CONCLUSIONS Butyrate induces developmental stage-dependent intestinal injury that resembles NEC. A primary mechanism of cell injury in NEC is necroptosis. Necroptosis inhibition may represent a potential preventive or therapeutic strategy for NEC. IMPACT Butyrate induces developmental stage-dependent intestinal injury that resembles NEC. A primary mechanism of cell injury caused by butyrate in NEC is necroptosis. Necroptosis inhibitors proved effective at significantly ameliorating the enteral toxicity of butyrate and thereby suggest a novel mechanism and approach to the prevention and treatment of NEC in premature newborns.
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Affiliation(s)
- Kewei Wang
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, 110001, Shenyang, Liaoning Province, China
| | - Guo-Zhong Tao
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
| | | | - Po-Yu Lin
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Zhen Sun
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Bo Liu
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Tiffany Sinclair
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Mirko Mostaghimi
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - James Dunn
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Karl G Sylvester
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Metabolic Health Center, Stanford University School of Medicine and Stanford Healthcare, Stanford, CA, USA.
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Ferraris L, Balvay A, Bellet D, Delannoy J, Maudet C, Larcher T, Rozé JC, Philippe C, Meylheuc T, Butel MJ, Rabot S, Aires J. Neonatal necrotizing enterocolitis: Clostridium butyricum and Clostridium neonatale fermentation metabolism and enteropathogenicity. Gut Microbes 2023; 15:2172666. [PMID: 36801067 PMCID: PMC9980464 DOI: 10.1080/19490976.2023.2172666] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
Bacterial colonization in the gut plays a pivotal role in neonatal necrotizing enterocolitis (NEC) development, but the relationship between bacteria and NEC remains unclear. In this study, we aimed to elucidate whether bacterial butyrate end-fermentation metabolites participate in the development of NEC lesions and confirm the enteropathogenicity of Clostridium butyricum and Clostridium neonatale in NEC. First, we produced C.butyricum and C.neonatale strains impaired in butyrate production by genetically inactivating the hbd gene encoding β-hydroxybutyryl-CoA dehydrogenase that produces end-fermentation metabolites. Second, we evaluated the enteropathogenicty of the hbd-knockout strains in a gnotobiotic quail model of NEC. The analyses showed that animals harboring these strains had significantly fewer and less intense intestinal lesions than those harboring the respective wild-type strains. In the absence of specific biological markers of NEC, the data provide original and new mechanistic insights into the disease pathophysiology, a necessary step for developing potential novel therapies.
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Affiliation(s)
- Laurent Ferraris
- Université Paris Cité, INSERM, UMR-S 1139, 3PHM, Paris, France,FHU PREMA « Fighting prematurity, Paris, France
| | - Aurélie Balvay
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Deborah Bellet
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Johanne Delannoy
- Université Paris Cité, INSERM, UMR-S 1139, 3PHM, Paris, France,FHU PREMA « Fighting prematurity, Paris, France
| | - Claire Maudet
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | | | - Jean-Christophe Rozé
- INRAE, UMR 1280, Physiologie des Adaptations Nutritionnelles (PhAN), Université hospitalière de Nantes, Nantes, France
| | - Catherine Philippe
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Thierry Meylheuc
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Marie-José Butel
- Université Paris Cité, INSERM, UMR-S 1139, 3PHM, Paris, France,FHU PREMA « Fighting prematurity, Paris, France
| | - Sylvie Rabot
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Julio Aires
- Université Paris Cité, INSERM, UMR-S 1139, 3PHM, Paris, France,FHU PREMA « Fighting prematurity, Paris, France,CONTACT Julio Aires Université Paris Cité, INSERM, UMR-S 1139, 3PHM, F-75006Paris, France
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3
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Moriki D, Francino MP, Koumpagioti D, Boutopoulou B, Rufián-Henares JÁ, Priftis KN, Douros K. The Role of the Gut Microbiome in Cow's Milk Allergy: A Clinical Approach. Nutrients 2022; 14:4537. [PMID: 36364799 PMCID: PMC9656688 DOI: 10.3390/nu14214537] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 07/30/2023] Open
Abstract
Cow's milk allergy (CMA) is the most prevalent food allergy (FA) in infancy and early childhood and can be present with various clinical phenotypes. The significant increase in FA rates recorded in recent decades has been associated with environmental and lifestyle changes that limit microbial exposure in early life and induce changes in gut microbiome composition. Gut microbiome is a diverse community of microbes that colonize the gastrointestinal tract (GIT) and perform beneficial functions for the host. This complex ecosystem interacts with the immune system and has a pivotal role in the development of oral tolerance to food antigens. Emerging evidence indicates that alterations of the gut microbiome (dysbiosis) in early life cause immune dysregulation and render the host susceptible to immune-mediated diseases later in life. Therefore, the colonization of the gut by "healthy" microbes that occurs in the first years of life determines the lifelong health of the host. Here, we present current data on the possible role of the gut microbiome in the development of CMA. Furthermore, we discuss how gut microbiome modification might be a potential strategy for CMA prevention and treatment.
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Affiliation(s)
- Dafni Moriki
- Allergology and Pulmonology Unit, 3rd Pediatric Department, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Maria Pilar Francino
- Department of Genomics and Health, Fundación Para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valencia (FISABIO), 46020 Valencia, Spain
- CIBER en Epidemiología y Salud Pública, 28001 Madrid, Spain
| | - Despoina Koumpagioti
- Department of Nursing, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Barbara Boutopoulou
- Department of Nursing, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - José Ángel Rufián-Henares
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de los Alimentos, Centro de Investigación Biomédica, Universidad de Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Universidad de Granada, 18071 Granada, Spain
| | - Kostas N. Priftis
- Allergology and Pulmonology Unit, 3rd Pediatric Department, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Konstantinos Douros
- Allergology and Pulmonology Unit, 3rd Pediatric Department, National and Kapodistrian University of Athens, 12462 Athens, Greece
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4
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Liu W, Luo X, Tang J, Mo Q, Zhong H, Zhang H, Feng F. A bridge for short-chain fatty acids to affect inflammatory bowel disease, type 1 diabetes, and non-alcoholic fatty liver disease positively: by changing gut barrier. Eur J Nutr 2021; 60:2317-2330. [PMID: 33180143 DOI: 10.1007/s00394-020-02431-w] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE In previous studies, short-chain fatty acids (SCFAs) have been found to regulate gut microbiota and change gut barrier status, and the potential positive effects of SCFAs on inflammatory bowel disease (IBD), type 1 diabetes mellitus (T1D), and non-alcoholic fatty liver disease (NAFLD) have also been found, but the role of SCFAs in these three diseases is not clear. This review aims to summarize existing evidence on the effects of SCFAs on IBD, T1D, and NHFLD, and correlates them with gut barrier and gut microbiota (gut microbiota barrier). METHODS A literature search in PubMed, Web of Science, Springer, and Wiley Online Library up to October 2020 was conducted for all relevant studies published. RESULTS This is a retrospective review of 150 applied research articles or reviews. The destruction of gut barrier may promote the development of IBD, T1D, and NAFLD. SCFAs seem to maintain the gut barrier by promoting the growth of intestinal epithelial cells, strengthening the intestinal tight connection, and regulating the activities of gut microbiota and immune cells, which might result possible beneficial effects on the above three diseases at a certain dose. CONCLUSIONS Influencing gut barrier health may be a bridge for SCFAs (especially butyrate) to have positive effects on IBD, T1D, and NAFLD. It is expected that this article can provide new ideas for the subsequent research on the treatment of diseases by SCFAs and help SCFAs be better applied to precise and personalized treatment.
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Affiliation(s)
- Wangxin Liu
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Xianliang Luo
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Jun Tang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Qiufen Mo
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Hao Zhong
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Hui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Fengqin Feng
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China.
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5
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Gasaly N, Hermoso MA, Gotteland M. Butyrate and the Fine-Tuning of Colonic Homeostasis: Implication for Inflammatory Bowel Diseases. Int J Mol Sci 2021; 22:ijms22063061. [PMID: 33802759 PMCID: PMC8002420 DOI: 10.3390/ijms22063061] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
This review describes current evidence supporting butyrate impact in the homeostatic regulation of the digestive ecosystem in health and inflammatory bowel diseases (IBDs). Butyrate is mainly produced by bacteria from the Firmicutes phylum. It stimulates mature colonocytes and inhibits undifferentiated malignant and stem cells. Butyrate oxidation in mature colonocytes (1) produces 70–80% of their energetic requirements, (2) prevents stem cell inhibition by limiting butyrate access to crypts, and (3) consumes oxygen, generating hypoxia and maintaining luminal anaerobiosis favorable to the microbiota. Butyrate stimulates the aryl hydrocarbon receptor (AhR), the GPR41 and GPR109A receptors, and inhibits HDAC in different cell types, thus stabilizing the gut barrier function and decreasing inflammatory processes. However, some studies indicate contrary effects according to butyrate concentrations. IBD patients exhibit a lower abundance of butyrate-producing bacteria and butyrate content. Additionally, colonocyte butyrate oxidation is depressed in these subjects, lowering luminal anaerobiosis and facilitating the expansion of Enterobacteriaceae that contribute to inflammation. Accordingly, gut dysbiosis and decreased barrier function in IBD seems to be secondary to the impaired mitochondrial disturbance in colonic epithelial cells.
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Affiliation(s)
- Naschla Gasaly
- Department of Nutrition, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
- Laboratory of Innate Immunity, Program of Immunology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Marcela A. Hermoso
- Laboratory of Innate Immunity, Program of Immunology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Martín Gotteland
- Department of Nutrition, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
- Department of Human Nutrition, Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Santiago 7830490, Chile
- Millennium Nucleus in the Biology of Intestinal Microbiota, Santiago 8380453, Chile
- Correspondence: ; Tel.: +56-989-059-222
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6
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Suther C, Moore MD, Beigelman A, Zhou Y. The Gut Microbiome and the Big Eight. Nutrients 2020; 12:nu12123728. [PMID: 33287179 PMCID: PMC7761723 DOI: 10.3390/nu12123728] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/28/2020] [Accepted: 12/01/2020] [Indexed: 12/11/2022] Open
Abstract
Food allergies are increasing at an alarming rate, with 6.5% of the general population affected. It has been hypothesized that the increase in allergies stems from the “hygiene hypothesis”. The gut microbiome, a collection of microbiota and their genetic contents from the gastrointestinal tract, has been shown to play a part in the development of food allergies. The Food and Drug Administration requires all regulated food companies to clearly state an inclusion of the major, or “big eight” food allergens on packaging. This review is to provide information on the significant advancements related to the gut microbiome and each of the eight major food allergies individually. Establishment of causal connection between the microbiome and food allergies has uncovered novel mechanisms. New strategies are discussed to prevent future sensitization and reaction through novel treatments involving functional additives and dietary changes that target the microbiome.
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Affiliation(s)
- Cassandra Suther
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; (C.S.); (M.D.M.)
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Matthew D. Moore
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; (C.S.); (M.D.M.)
| | - Avraham Beigelman
- Kipper Institute of Allergy and Immunology, Schneider Children’s Medical Center, Tel Aviv University, Tel Aviv 5891000, Israel;
| | - Yanjiao Zhou
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
- Correspondence: ; Tel.: +1-860-679-6379
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7
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Huang S, Wu Z, Yuan X, Li N, Li T, Wang J, Levesque CL, Feng C. Transcriptome Differences Suggest Novel Mechanisms for Intrauterine Growth Restriction Mediated Dysfunction in Small Intestine of Neonatal Piglets. Front Physiol 2020; 11:561. [PMID: 32655399 PMCID: PMC7324767 DOI: 10.3389/fphys.2020.00561] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/04/2020] [Indexed: 12/20/2022] Open
Abstract
Impaired intestinal function is frequently detected in newborns with intrauterine growth restriction (IUGR), whereas the mechanism between transcriptome profiles and small intestinal dysfunction is still unclear. Therefore, this study was conducted by using IUGR neonatal piglets to uncover the mechanism underlying intestinal dysfunction. Neonatal piglets with IUGR and normal birth weight (NBW) were sacrificed at birth. Transcriptomic sequencing was performed on jejunum samples and generated 18,997 and 17,531 genes in NBW and IUGR groups, respectively. A total of 10 differentially expressed genes (DEGs) were identified; of note, only seven were mapped to the genome reference database, with two up-regulated (HSF4 and NR1H4; heat shock transcription factor 4 and nuclear receptor subfamily 1 group H member 4, respectively) and five down-regulated (SLC35C1, BTNL3, BPI, NLRP6, and SLC5A8; Solute carrier family 35 member C1, butyrophilin like 3, bactericidal permeability increasing protein, NLR family pyrin domain containing 6, and solute carrier family 5 member 8, respectively). Combining an enrichment analysis and reverse transcriptase–quantitative polymerase chain reaction validation of DEGs, our results proved the lipid metabolism disorder, intestinal dysfunction, and inflammatory response in IUGR piglets. Here, IUGR piglets presented lower concentration of glucose and triglyceride and higher concentration of total cholesterol and low-density lipoprotein cholesterol in plasma, compared with NBW piglets. Histological analysis revealed decreased mucins and increased apoptosis in both jejunum and ileum for IUGR piglets. Collectively, we found that IUGR induced intestinal dysfunction by altering lipid metabolism, intestinal barrier, and inflammatory response in neonatal piglets at birth, which provides new insights into the prevention and treatment of IUGR that protects against metabolic disorders and inflammatory-related diseases.
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Affiliation(s)
- Shimeng Huang
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China.,State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenhua Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiongkun Yuan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Na Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Tiantian Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Crystal L Levesque
- Department of Animal Sciences, South Dakota State University, Brookings, SD, United States
| | - Cuiping Feng
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
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8
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Wong CB, Iwabuchi N, Xiao JZ. Exploring the Science behind Bifidobacterium breve M-16V in Infant Health. Nutrients 2019; 11:nu11081724. [PMID: 31349739 PMCID: PMC6723912 DOI: 10.3390/nu11081724] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 12/18/2022] Open
Abstract
Probiotics intervention has been proposed as a feasible preventative approach against adverse health-related complications in infants. Nevertheless, the umbrella concept of probiotics has led to a massive application of probiotics in a range of products for promoting infant health, for which the strain-specificity, safety and efficacy findings associated with a specific probiotics strain are not clearly defined. Bifidobacterium breve M-16V is a commonly used probiotic strain in infants. M-16V has been demonstrated to offer potential in protecting infants from developing the devastating necrotising enterocolitis (NEC) and allergic diseases. This review comprehends the potential beneficial effects of M-16V on infant health particularly in the prevention and treatment of premature birth complications and immune-mediated disorders in infants. Mechanistic studies supporting the use of M-16V implicated that M-16V is capable of promoting early gut microbial colonisation and may be involved in the regulation of immune balance and inflammatory response to protect high-risk infants from NEC and allergies. Summarised information on M-16V has provided conceptual proof of the use of M-16V as a potential probiotics candidate aimed at promoting infant health, particularly in the vulnerable preterm population.
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MESH Headings
- Animals
- Animals, Newborn
- Bifidobacterium breve/physiology
- Disease Models, Animal
- Gastrointestinal Microbiome
- Gestational Age
- Humans
- Infant
- Infant Health
- Infant, Newborn
- Infant, Newborn, Diseases/diagnosis
- Infant, Newborn, Diseases/microbiology
- Infant, Newborn, Diseases/prevention & control
- Infant, Premature
- Probiotics/adverse effects
- Probiotics/therapeutic use
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Affiliation(s)
- Chyn Boon Wong
- Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan
| | - Noriyuki Iwabuchi
- Food Ingredients and Technology Institute, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan
| | - Jin-Zhong Xiao
- Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama, Kanagawa 252-8583, Japan.
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9
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Roy SK, Meng Q, Sadowitz BD, Kollisch-Singule M, Yepuri N, Satalin J, Gatto LA, Nieman GF, Cooney RN, Clark D. Enteral administration of bacteria fermented formula in newborn piglets: A high fidelity model for necrotizing enterocolitis (NEC). PLoS One 2018; 13:e0201172. [PMID: 30036384 PMCID: PMC6056052 DOI: 10.1371/journal.pone.0201172] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 07/10/2018] [Indexed: 12/15/2022] Open
Abstract
Objective To develop an animal model which replicates neonatal NEC and characterizes the importance of bacterial fermentation of formula and short chain fatty acids (SCFAs) in its pathogenesis. Background NEC is a severe form of intestinal inflammation in preterm neonates and current models do not reproduce the human condition. Methods Three groups of newborn piglets: Formula alone (FO), Bacteria alone (E.coli: BO) and E.coli-fermented formula (FF) were anesthetized, instrumented and underwent post-pyloric injection of formula, bacteria or fermented-formula. SCFA levels were measured by gas chromatography-mass spectrometry. At 6 h bowel appearance was assessed, histologic and molecular analysis of intestine were performed. Gut inflammation (p65 NF-κB, TLR4, TNF-α, IL-1β), apoptosis (cleaved caspase-3, BAX, apoptosis) and tight junction proteins (claudin-2, occludin) were measured. Results SCFAs were increased in FF. Small bowel from FF piglet’s demonstrated inflammation, coagulative necrosis and pneumatosis resembling human NEC. Histologic gut injury (injury score, mast cell activation) were increased by Bacteria, but more severe in FF piglets. Intestinal expression of p65 NF-κB, NF-κB activation, TNF-α and IL-1β were increased in BO and markedly increased in the FF group (P<0.05 vs. FO). Intestine from Bacteria piglets demonstrated increased apoptotic index, pro-apoptotic protein expression and decreased tight junction proteins. These changes were more severe in FF piglets. Conclusions Our piglet model demonstrates the findings of NEC in human neonates: systemic acidosis, intestinal inflammation, pneumatosis and portal venous gas. Bacteria alone can initiate intestinal inflammation, injury and apoptosis, but bacterial fermentation of formula generates SCFAs which contribute to the pathogenesis of NEC.
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Affiliation(s)
- Shreyas K. Roy
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Qinghe Meng
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Benjamin D. Sadowitz
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Michaela Kollisch-Singule
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Natesh Yepuri
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Joshua Satalin
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Louis A. Gatto
- SUNY Cortland, Department of Biology, Cortland, New York, United States of America
| | - Gary F. Nieman
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
| | - Robert N. Cooney
- SUNY Upstate Medical University, Department of Surgery, Syracuse, New York, United States of America
- * E-mail:
| | - David Clark
- Albany Medical Center, Department of Pediatrics, Albany, New York, United States of America
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10
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Chen CC, Chen KJ, Kong MS, Chang HJ, Huang JL. Alterations in the gut microbiotas of children with food sensitization in early life. Pediatr Allergy Immunol 2016; 27:254-62. [PMID: 26663491 DOI: 10.1111/pai.12522] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/06/2015] [Indexed: 12/26/2022]
Abstract
BACKGROUND We hypothesized that food sensitization (FS) in children could be linked to specific gut microbiota. The aim of our study is to quantify and evaluate differences in gut microbiota composition between children with FS and healthy controls. METHODS A case-control study of 23 children with FS and 22 healthy children was performed. Individual microbial diversity and composition were analyzed via parallel barcoded 454 pyrosequencing targeting the 16S rRNA gene hypervariable V3-V5 regions. RESULTS The children with FS exhibited lower diversity of both the total microbiota (p = 0.01) and the bacterial phylum Bacteroidetes (p = 0.02). In these children, the number of Bacteroidetes bacteria was significantly decreased and that of Firmicutes were significantly increased compared with the healthy children. At the genus level, we observed significant increases in the numbers of Sphingomonas, Sutterella, Bifidobacterium, Collinsella, Clostridium sensu stricto, Clostridium IV, Enterococcus, Lactobacillus, Roseburia, Faecalibacterium, Ruminococcus, Subdoligranulum, and Akkermansia in the FS group. We also found significant decreases in the numbers of Bacteroides, Parabacteroides, Prevotella, Alistipes, Streptococcus, and Veillonella in this group. Furthermore, linear discriminant analysis (LDA) coupled with effect size measurements revealed the most differentially abundant taxa (increased abundances of Clostridium IV and Subdoligranulum and decreased abundances of Bacteroides and Veillonella), which could be used to identify FS. CONCLUSIONS Our results showed that FS is associated with compositional changes in the gut microbiota. These findings could be useful for developing strategies to control the development of FS or atopy by modifying the gut microbiota.
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Affiliation(s)
- Chien-Chang Chen
- Division of Gastroenterology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kun-Jei Chen
- Division of Gastroenterology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Man-Shan Kong
- Division of Gastroenterology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Hung-Ju Chang
- Division of Gastroenterology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Jing-Long Huang
- Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
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11
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Muir JG, Yao CK, Gibson PG. Functional short-chain carbohydrates (prebiotics) in the diet to improve the microbiome and health of the gastrointestinal tract. ANIMAL PRODUCTION SCIENCE 2015. [DOI: 10.1071/an15277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Advancement in technologies to identify and quantify bacterial species in the gastrointestinal tract has escalated interest in its microbiome worldwide. There is enormous interest in understanding the roles that bacterial species play in gastrointestinal health and overall wellbeing. What constitutes a ‘healthy gut microbiome’ includes: favourable fermentation-dependent characteristics such as butyrate supply to all regions, minimisation of putrefaction of proteins, and adequate laxation. The relative abundance of specific bacterial species with certain functional characteristics is also important and include: traditional prebiotic bacteria – Bifidobacteria; strongly butyrate-producing – Clostridium coccoides and Faecalibacterium prausnitzi as well as a mucus-associated bacterium Akkermansia muciniphila. Manipulation of diet and dietary factors may be essential to favourably influence these fermentation-dependent parameters and select for growth of beneficial bacterial species. In this regard, this laboratory has identified indigestible oligosaccharides with prebiotic effects and now has an extensive database that quantifies indigestible oligosaccharides in a wide variety of foods including whole grains, cereals, legumes, seeds, nuts, fruits and vegetables. Future research in this area should consider the role of dietary components that best establish and maintain a ‘healthy gut microbiome’.
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12
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Herfel TM, Jacobi SK, Lin X, Fellner V, Walker DC, Jouni ZE, Odle J. Polydextrose enrichment of infant formula demonstrates prebiotic characteristics by altering intestinal microbiota, organic acid concentrations, and cytokine expression in suckling piglets. J Nutr 2011; 141:2139-45. [PMID: 22013198 DOI: 10.3945/jn.111.143727] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Oligosaccharides, the 3rd-most abundant component in human milk, are virtually absent from infant formulas and from the cow milk on which most are based. In breast-fed infants, human milk oligosaccharides (HMO) act as both receptor analogs, interfering with pathogen adhesion, and as prebiotics, stimulating the growth of certain commensal bacteria (e.g. bifidobacteria) and supporting the innate immunity. To further align the functional properties of infant formula with those of human milk, polydextrose (PDX) is proposed as a substitute for HMO. To determine the prebiotic functionality of PDX, 1-d-old pigs were fed a cow milk-based formula supplemented with increasing concentrations of PDX (0, 1.7, 4.3, 8.5, or 17 g/L) for 18 d (n = 13). Additional reference groups included pigs sampled at d 0 and sow-reared pigs sampled at d 18 (n = 12). Ileal Lactobacilli CFU, but not Bifidobacteria, increased linearly with increasing PDX (P = 0.02). The propionic acid concentration in digesta linearly increased with the PDX level (P = 0.045) and lactic acid increased linearly by 5-fold with increasing PDX (P = 0.001). Accordingly, digesta pH decreased linearly (P < 0.05) as PDX increased, with a maximal reduction approaching 0.5 pH units in pigs fed 17 g/L. Expression of TNFα, IL-1β, and IL-8 showed a negative quadratic pattern in response to PDX supplementation, declining at intermediate concentrations and rebounding at higher concentrations of PDX. In summary, PDX enrichment of infant formula resulted in a prebiotic effect by increasing ileal lactobacilli and propionic and lactic acid concentrations and decreasing pH with associated alterations in ileal cytokine expression.
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Affiliation(s)
- Tina M Herfel
- Laboratory of Developmental Nutrition, Department of Animal Sciences, North Carolina State University, Raleigh, NC, USA
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13
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Thompson-Chagoyan OC, Fallani M, Maldonado J, Vieites JM, Khanna S, Edwards C, Doré J, Gil A. Faecal microbiota and short-chain fatty acid levels in faeces from infants with cow's milk protein allergy. Int Arch Allergy Immunol 2011; 156:325-32. [PMID: 21720179 DOI: 10.1159/000323893] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Accepted: 12/22/2010] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The present study was designed to compare the faecal microbiota and concentrations of faecal short-chain fatty acid and ammonia between healthy and cow's milk protein allergic (CMPA) infants. METHODS The population comprised 92 infants aged 2-12 months who were nonallergic (n = 46) or diagnosed as having CMPA (n = 46). Faecal samples were analyzed by fluorescent in situ hybridization and flow cytometry, using a panel of 10 rRNA targeted group- and species-specific oligonucleotide probes. Acetic, propionic, butyric, isocaproic and branched-chain short fatty acids (BCSFA) were measured by gas-liquid chromatography, lactate by enzymatic reaction, and pH and ammonia levels were determined. RESULTS CMPA infant faeces had significantly higher proportions of the Clostridium coccoides group and Atopobium cluster and a higher sum of the proportions of the different bacterial groups in comparison to healthy infant faeces. Faecal pH and ammonia did not significantly differ between CMPA and healthy infants. Faeces concentrations and percentages of butyric acid and BCSFA were higher in CMPA infants than in healthy infants. CONCLUSIONS The findings clearly set a link between a dysbiosis in gut microbiota composition and the pathogenesis of CMPA. No single species or genus appeared to play an essential role, but dysbiosis led to biomarkers of CMPA among bacterial fermentation products.
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Affiliation(s)
- Oscar C Thompson-Chagoyan
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology, Centre for Biomedical Research, University of Granada, Granada, Spain
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Buddington RK, Sangild PT. Companion animals symposium: development of the mammalian gastrointestinal tract, the resident microbiota, and the role of diet in early life. J Anim Sci 2011; 89:1506-19. [PMID: 21239667 DOI: 10.2527/jas.2010-3705] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mammalian gastrointestinal (GI) development is guided by genetic determinants established during the evolution of mammals and matched to the natural diet and environment. Coevolution of the host GI tract (GIT) and the resident bacteria has resulted in commensal relationships that are species and even individual specific. The interactions between the host and the GI bacteria are 2-way and of particular importance during the neonatal period, when the GIT needs to adapt rapidly to the external environment, begin processing of oral foods, and acquire the ability to differentiate between and react appropriately to colonizing commensal and potentially pathogenic bacteria. During this crucial period of life, the patterns of gene expression that determine GI structural and functional development are modulated by the bacteria colonizing the previously sterile GIT of fetuses. The types and amounts of dietary inputs after birth influence GI development, species composition, and metabolic characteristics of the resident bacteria, and the interactions that occur between the bacteria and the host. This review provides overviews of the age-related changes in GIT functions, the resident bacteria, and diet, and describes how interactions among these 3 factors influence the health and nutrition of neonates and can have lifelong consequences. Necrotizing enterocolitis is a common GI inflammatory disorder in preterm infants and is provided as an example of interactions that go awry. Other enteric diseases are common in all newborn mammals, and an understanding of the above interactions will enhance efforts to support neonatal health for infants and for farm and companion animals.
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Affiliation(s)
- R K Buddington
- Department of Health and Sport Science, University of Memphis, Memphis, TN 38152, USA.
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15
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Abstract
INTRODUCTION The colonic mucus layer plays an important role in the protection of the intestinal epithelium and mainly consists of mucin glycoproteins (primarily MUC2 in the colon) trefoil factor 3 (TFF3) and secretory IgA. Butyrate is a major end product of fermentation of dietary fibres and is associated with beneficial effects on colonic health. Earlier in-vitro and animal studies showed that butyrate modulates MUC2 and TFF3 expression and mucin secretion, although data from human studies are not yet available. METHODS Sixteen healthy volunteers and 35 ulcerative colitis (UC) patients in clinical remission self-administered a 60 ml rectal enema containing 100 mmol/l butyrate or placebo once daily for 2 and 3 weeks, respectively. After each treatment, biopsies were taken from the distal sigmoid for quantitative RT-PCR and immunohistochemical analysis of MUC2 and TFF3. In addition, mucosal sections were stained with high iron diamine-alcian blue to distinguish between sialomucins and sulphomucins. To analyse total mucin secretion and secretory IgA concentrations, 24 h faeces were collected during the day before the endoscopic examination. RESULTS The butyrate intervention did not significantly modulate the expression of MUC2 (fold change: 1.04 and 1.05 in healthy volunteers and ulcerative colitis patients, respectively) or TFF3 (fold change: 0.91 and 0.94 in healthy volunteers and UC patients, respectively). Furthermore, the percentage of sialomucins, mucus secretion and secretory IgA concentrations were not affected by the butyrate intervention in both the groups. CONCLUSION Butyrate exposure in healthy volunteers and UC patients in remission did not affect the measured parameters of the colonic mucus layer.
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Thymann T, Møller HK, Stoll B, Støy ACF, Buddington RK, Bering SB, Jensen BB, Olutoye OO, Siggers RH, Mølbak L, Sangild PT, Burrin DG. Carbohydrate maldigestion induces necrotizing enterocolitis in preterm pigs. Am J Physiol Gastrointest Liver Physiol 2009; 297:G1115-25. [PMID: 19808655 PMCID: PMC2850085 DOI: 10.1152/ajpgi.00261.2009] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Necrotizing enterocolitis (NEC) remains the most severe gastrointestinal disorder in preterm infants. It is associated with the initiation of enteral nutrition and may be related to immature carbohydrate digestive capacity. We tested the hypothesis that a formula containing maltodextrin vs. a formula containing lactose as the principal source of carbohydrate would predispose preterm pigs to a higher NEC incidence. Cesarean-derived preterm pigs were given total parenteral nutrition for 48 h followed by total enteral nutrition with a lactose-based (n = 11) or maltodextrin-based (n = 11) formula for 36 h. A higher incidence (91% vs. 27%) and severity (score of 3.3 vs. 1.8) of NEC were observed in the maltodextrin than in the lactose group. This higher incidence of NEC in the maltodextrin group was associated with significantly lower activities of lactase, maltase, and aminopeptidase; reduced villus height; transiently reduced in vivo aldohexose uptake; and reduced ex vivo aldohexose uptake capacity in the middle region of the small intestine. Bacterial diversity was low for both diets, but alterations in bacterial composition and luminal concentrations of short-chain fatty acids were observed in the maltodextrin group. In a second study, we quantified net portal absorption of aldohexoses (glucose and galactose) during acute jejunal infusion of a maltodextrin- or a lactose-based formula (n = 8) into preterm pigs. We found lower net portal aldohexose absorption (4% vs. 42%) and greater intestinal recovery of undigested carbohydrate (68% vs. 27%) in pigs acutely perfused with the maltodextrin-based formula than those perfused with the lactose-based formula. The higher digestibility of the lactose than the maltodextrin in the formulas can be attributed to a 5- to 20-fold higher hydrolytic activity of tissue-specific lactase than maltases. We conclude that carbohydrate maldigestion is sufficient to increase the incidence and severity of NEC in preterm pigs.
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Affiliation(s)
- Thomas Thymann
- 1Department of Human Nutrition, University of Copenhagen, Frederiksberg,
| | - Hanne K. Møller
- 1Department of Human Nutrition, University of Copenhagen, Frederiksberg, ,2Department of Systems Biology, Technical University of Denmark, Lyngby,
| | - Barbara Stoll
- 3US Department of Agriculture Children's Nutrition Research Center and
| | - Ann Cathrine F. Støy
- 7National Veterinary Institute, Technical University of Denmark, Copenhagen, and
| | - Randal K. Buddington
- 4Department of Health and Sports Sciences, University of Memphis, Memphis, Tennessee
| | - Stine B. Bering
- 1Department of Human Nutrition, University of Copenhagen, Frederiksberg,
| | - Bent B. Jensen
- 5Faculty of Agricultural Sciences, University of Aarhus, Tjele, Denmark;
| | - Oluyinka O. Olutoye
- 6Texas Children's Hospital, Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas; and
| | - Richard H. Siggers
- 1Department of Human Nutrition, University of Copenhagen, Frederiksberg,
| | - Lars Mølbak
- 7National Veterinary Institute, Technical University of Denmark, Copenhagen, and
| | - Per T. Sangild
- 1Department of Human Nutrition, University of Copenhagen, Frederiksberg,
| | - Douglas G. Burrin
- 3US Department of Agriculture Children's Nutrition Research Center and
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Fança-Berthon P, Michel C, Pagniez A, Rival M, Van Seuningen I, Darmaun D, Hoebler C. Intrauterine growth restriction alters postnatal colonic barrier maturation in rats. Pediatr Res 2009; 66:47-52. [PMID: 19287349 DOI: 10.1203/pdr.0b013e3181a2047e] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Intrauterine growth restriction (IUGR) is a leading cause of perinatal mortality and morbidity and increases the risk for necrotizing enterocolitis. We hypothesized that colonic barrier disruption could be responsible for intestinal frailty in infants and adults born with IUGR. Mucins and trefoil factor family 3 (TFF3) actively contribute to epithelium protection and healing. Our aim was to determine whether IUGR affects colonic mucosa maturation. IUGR was induced by dietary protein restriction in pregnant dams. Mucins and Tff3 expression and morphologic maturation of the colonic mucosa were followed during postnatal development of the offspring. Before weaning, mucin 2 and Tff3 protein levels were reduced in colonic mucosa of rats with IUGR compared with controls. After weaning, expression of mucin 2 (mRNA and protein) and mucin 4 (mRNA) were lower in colonic mucosa of rats with IUGR. At the same time, IUGR was associated with a reduction of crypt depth and a higher percentage of crypts in fission. We conclude that IUGR impairs mucus barrier development and is associated with long-term alterations of mucin expression. The lack of an efficient colonic barrier induced by IUGR may predispose to colonic injury not only in neonatal life but also in later life.
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Affiliation(s)
- Pascale Fança-Berthon
- UMR 1280, Physiologie des Adaptations Nutritionnelles, INRA, Université de Nantes, Nantes, France
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Hamer HM, Jonkers D, Venema K, Vanhoutvin S, Troost FJ, Brummer RJ. Review article: the role of butyrate on colonic function. Aliment Pharmacol Ther 2008; 27:104-19. [PMID: 17973645 DOI: 10.1111/j.1365-2036.2007.03562.x] [Citation(s) in RCA: 1699] [Impact Index Per Article: 106.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Butyrate, a short-chain fatty acid, is a main end-product of intestinal microbial fermentation of mainly dietary fibre. Butyrate is an important energy source for intestinal epithelial cells and plays a role in the maintenance of colonic homeostasis. AIM To provide an overview on the present knowledge of the bioactivity of butyrate, emphasizing effects and possible mechanisms of action in relation to human colonic function. METHODS A PubMed search was performed to select relevant publications using the search terms: 'butyrate, short-chain fatty acid, fibre, colon, inflammation, carcinogenesis, barrier, oxidative stress, permeability and satiety'. RESULTS Butyrate exerts potent effects on a variety of colonic mucosal functions such as inhibition of inflammation and carcinogenesis, reinforcing various components of the colonic defence barrier and decreasing oxidative stress. In addition, butyrate may promote satiety. Two important mechanisms include the inhibition of nuclear factor kappa B activation and histone deacetylation. However, the observed effects of butyrate largely depend on concentrations and models used and human data are still limited. CONCLUSION Although most studies point towards beneficial effects of butyrate, more human in vivo studies are needed to contribute to our current understanding of butyrate-mediated effects on colonic function in health and disease.
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Affiliation(s)
- H M Hamer
- TI Food and Nutrition, Wageningen, The Netherlands.
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Abstract
The concept of colonic health has become a major target for the development of functional foods such as probiotics, prebiotics, and synbiotics. These bioactive agents have a profound effect on the composition of the microflora, as well as on the physiology of the colon, and display distinct health benefits. Dietary carbohydrates escaping digestion/absorption in the small bowel and prebiotics undergo fermentation in the colon and give rise to short-chain fatty acids (SCFA). As the main anions of the colon and the major source of energy for colonocytes, SCFA are rapidly absorbed by nonionic diffusion mostly but also by active transport mediated by a sodium-coupled transporter, thereby fostering the absorption of sodium and water. SCFA in general and butyrate in particular enhance the growth of lactobacilli and bifidobacteria and play a central role on the physiology and metabolism of the colon. The effect of prebiotics on cell proliferation, differentiation, apoptosis, mucin production, immune function, mineral absorption, lipid metabolism, and gastrointestinal (GI) peptides has been well documented experimentally. These effects seem to be largely mediated by SCFA, but evidence from human studies remains inconsistent. The food industry is making a leap of faith in their efforts to commercialize prebiotics and exploit potential health benefits. The future lies with the design of studies to further explore basic mechanisms, and gene expression in particular, but emphasis should be placed on human intervention trials.
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Affiliation(s)
- Claude C Roy
- Ste Justine Hospital, 3175 Ste-Catherine Road, Montreal, Quebec H3T 1C5, Canada.
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N/A, 任 建. N/A. Shijie Huaren Xiaohua Zazhi 2006; 14:2907-2912. [DOI: 10.11569/wcjd.v14.i30.2907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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