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Ahire JJ, Neelamraju J, Madempudi RS. Behavior of Bacillus coagulans Unique IS2 spores during passage through the simulator of human intestinal microbial ecosystem (SHIME) model. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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102
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Chen J, Vitetta L. The Role of Butyrate in Attenuating Pathobiont-Induced Hyperinflammation. Immune Netw 2020; 20:e15. [PMID: 32395367 PMCID: PMC7192831 DOI: 10.4110/in.2020.20.e15] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 01/09/2020] [Accepted: 01/19/2020] [Indexed: 12/17/2022] Open
Abstract
An excessive hyperinflammatory response-caused septic shock is a major medical problem that is associated with pathogenic bacterial infections leading to high mortality rates. The intestinal microbiota and the associated elaborated metabolites such as short chain fatty acid butyrate have been shown to relieve pathogenic bacterial-caused acute inflammation. Butyrate can down-regulate inflammation by inhibiting the growth of pathobionts, increasing mucosal barrier integrity, encouraging obligate anaerobic bacterial dominance and decreasing oxygen availability in the gut. Butyrate can also decrease excessive inflammation through modulation of immune cells such as increasing functionalities of M2 macrophages and regulatory T cells and inhibiting infiltration by neutrophils. Therefore, various approaches can be used to increase butyrate to relieve pathogenic bacterial-caused hyperinflammation. In this review we summarize the roles of butyrate in attenuating pathogenic bacterial-caused hyperinflammatory responses and discuss the associated plausible mechanisms.
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Affiliation(s)
| | - Luis Vitetta
- Medlab Clinical Ltd, Sydney 2015, Australia
- The University of Sydney, Faculty of Medicine and Health, Sydney 2006, Australia
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103
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Graversen KB, Bahl MI, Larsen JM, Ballegaard ASR, Licht TR, Bøgh KL. Short-Term Amoxicillin-Induced Perturbation of the Gut Microbiota Promotes Acute Intestinal Immune Regulation in Brown Norway Rats. Front Microbiol 2020; 11:496. [PMID: 32292395 PMCID: PMC7135894 DOI: 10.3389/fmicb.2020.00496] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/06/2020] [Indexed: 12/17/2022] Open
Abstract
The intestinal gut microbiota is essential for maintaining host health. Concerns have been raised about the possible connection between antibiotic use, causing microbiota disturbances, and the increase in allergic and autoimmune diseases observed during the last decades. To elucidate the putative connection between antibiotic use and immune regulation, we have assessed the effects of the antibiotic amoxicillin on immune regulation, protein uptake, and bacterial community structure in a Brown Norway rat model. Daily intra-gastric administration of amoxicillin resulted in an immediate and dramatic shift in fecal microbiota, characterized by a reduction of within sample (α) diversity, reduced variation between animals (β diversity), increased relative abundance of Bacteroidetes and Gammaproteobacteria, with concurrent reduction of Firmicutes, compared to a water control group. In the small intestine, amoxicillin also affected microbiota composition significantly, but in a different way than observed in feces. The small intestine of control animals was vastly dominated by Lactobacillus, but this genus was much less abundant in the amoxicillin group. Instead, multiple different genera expanded after amoxicillin administration, with high variation between individual animals, thus the small intestinal α and β diversity were higher in the amoxicillin group compared to controls. After 1 week of daily amoxicillin administration, total fecal IgA level, relative abundance of small intestinal regulatory T cells and goblet cell numbers were higher in the amoxicillin group compared to controls. Several bacterial genera, including Escherichia/Shigella, Klebsiella (Gammaproteobacteria), and Bifidobacterium, for which the relative abundance was higher in the small intestine in the amoxicillin group than in controls, were positively correlated with the fraction of small intestinal regulatory T cells. Despite of epidemiologic studies showing an association between early life antibiotic consumption and later prevalence of inflammatory bowel diseases and food allergies, our findings surprisingly indicated that amoxicillin-induced perturbation of the gut microbiota promotes acute immune regulation. We speculate that the observed increase in relative abundance of small intestinal regulatory T cells is partly mediated by immunomodulatory lipopolysaccharides derived from outgrowth of Gammaproteobacteria.
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Affiliation(s)
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Jeppe Madura Larsen
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | | | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
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104
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Chen Y, Zhang S, Zeng B, Zhao J, Yang M, Zhang M, Li Y, Ni Q, Wu D, Li Y. Transplant of microbiota from long-living people to mice reduces aging-related indices and transfers beneficial bacteria. Aging (Albany NY) 2020; 12:4778-4793. [PMID: 32176868 PMCID: PMC7138539 DOI: 10.18632/aging.102872] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/20/2020] [Indexed: 12/11/2022]
Abstract
A close relationship between age and gut microbiota exists in invertebrates and vertebrates, including humans. Long-living people are a model for studying healthy aging; they also have a distinctive microbiota structure. The relationship between the microbiota of long-living people and aging phenotype remains largely unknown. Herein, the feces of long-living people were transplanted into mice, which were then examined for aging-related indices and beneficial bacteria. Mice transplanted with fecal matter from long-living people (L group) had greater α diversity, more probiotic genera (Lactobacillus and Bifidobacterium), and short-chain fatty acid producing genera (Roseburia, Faecalibacterium, Ruminococcus, Coprococcus) than the control group. L group mice also accumulated less lipofuscin and β-galactosidase and had longer intestinal villi. This study indicates the effects that the gut microbiota from long-living people have on healthy aging.
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Affiliation(s)
- Yinfeng Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Siyuan Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Bo Zeng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, USA
| | - Mingyao Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mingwang Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qingyong Ni
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - De Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ying Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
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105
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Pothuraju R, Krishn SR, Gautam SK, Pai P, Ganguly K, Chaudhary S, Rachagani S, Kaur S, Batra SK. Mechanistic and Functional Shades of Mucins and Associated Glycans in Colon Cancer. Cancers (Basel) 2020; 12:E649. [PMID: 32168759 PMCID: PMC7139953 DOI: 10.3390/cancers12030649] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 02/08/2023] Open
Abstract
Mucus serves as the chief protective barrier against pathogenic and mechanical insults in respiratory, gastrointestinal, and urogenital tracts. Altered mucin expression, the major component of mucus, in conjunction with differential glycosylation has been strongly associated with both benign and malignant pathologies of colon. Mucins and their associated glycans arbitrate their impact sterically as well as mechanically by altering molecular and microbial spectrum during pathogenesis. Mucin expression in normal and pathological conditions is regulated by nonspecific (dietary factors and gut microbiota) and specific (epigenetic and transcriptional) modulators. Further, recent studies highlight the impact of altering mucin glycome (cancer-associated carbohydrate antigens including Tn, Sialyl-Tn, Sialyl-Lew A, and Sialyl-Lewis X) on host immunomodulation, antitumor immunity, as well as gut microbiota. In light of emerging literature, the present review article digs into the impact of structural organization and of expressional and glycosylation alteration of mucin family members on benign and malignant pathologies of colorectal cancer.
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Affiliation(s)
- Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Shiv Ram Krishn
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Shailendra K. Gautam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Priya Pai
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Koelina Ganguly
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Sukhwinder Kaur
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
| | - Surinder K. Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.P.); (S.R.K.); (S.K.G.); (P.P.); (K.G.); (S.C.); (S.R.); (S.K.)
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68105, USA
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
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106
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Biasato I, Ferrocino I, Dabbou S, Evangelista R, Gai F, Gasco L, Cocolin L, Capucchio MT, Schiavone A. Black soldier fly and gut health in broiler chickens: insights into the relationship between cecal microbiota and intestinal mucin composition. J Anim Sci Biotechnol 2020; 11:11. [PMID: 32025297 PMCID: PMC6996183 DOI: 10.1186/s40104-019-0413-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/09/2019] [Indexed: 12/17/2022] Open
Abstract
Background The relationship between diet and intestinal microbiota and mucin composition appears to be fundamental for poultry gut health. The effects of insect meal (whose role as alternative feed ingredient is now well recognized) on gut microbiota and mucin composition have recently been reported in Tenebrio molitor-fed free-range and broiler chickens, but no data are currently available for Hermetia illucens (HI)-fed broilers. The present study evaluated the effects of dietary HI meal inclusion on cecal microbiota and intestinal mucin composition of broiler chickens. Results A total of 256 male broiler chickens were allotted to 4 dietary treatments (control diet [C] and 5%, 10% and 15% HI meal inclusion, with 8 replicate pens/treatment and 8 birds/pen) and slaughtered at 35 d of age (2 animals/pen, 16 birds/diet). The cecal microbiota assessment by 16S rRNA amplicon based sequencing showed lower alpha diversity in HI15 chickens (Shannon, P < 0.05) and higher beta diversity (Adonis and ANOSIM, P < 0.001) in birds fed HI diets than C. Furthermore, HI15 birds displayed significant increase of the relative abundance of Proteobacteria phylum (False Discovery Rate [FDR] < 0.05) when compared to HI10. L-Ruminococcus (Ruminococcus from Lachnospiraceae family), Faecalibacterium, Blautia and Clostridium genera were found to be characteristic of HI5 cecal microbiota (FDR < 0.05), while broiler chickens fed HI10 and HI15 diets were characterized (FDR < 0.05) by Lactobacillus and Ruminococcus (HI10) and Bacteroides, Roseburia and Helicobacter genera (HI15). Periodic-acid Schiff, Alcian Blue pH 2.5 and high iron diamine staining on small and large intestine also demonstrated lower mucin staining intensity in the intestinal villi of HI10 and HI15 birds than C (P < 0.05). Conclusions Dietary HI meal utilization at low inclusion levels (i.e., 5%) positively influenced either the cecal microbiota or the gut mucin dynamics in terms of selection of potentially beneficial bacteria and increase in villi mucins. However, high inclusion levels (in particular the 15%) may have a negative influence in terms of partial reduction of microbial complexity, reduction of potentially beneficial bacteria, selection of bacteria with mucolytic activity and decrease in villi mucins.
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Affiliation(s)
- Ilaria Biasato
- 1Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Ilario Ferrocino
- 1Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Sihem Dabbou
- 2Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Rocchina Evangelista
- 2Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Francesco Gai
- 3Institute of Science of Food Production, National Research Council, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Laura Gasco
- 1Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Luca Cocolin
- 1Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Maria Teresa Capucchio
- 2Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy.,3Institute of Science of Food Production, National Research Council, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
| | - Achille Schiavone
- 2Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy.,3Institute of Science of Food Production, National Research Council, Largo Paolo Braccini 2, 10095 Grugliasco, TO Italy
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107
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Liu J, He Z, Ma N, Chen ZY. Beneficial Effects of Dietary Polyphenols on High-Fat Diet-Induced Obesity Linking with Modulation of Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:33-47. [PMID: 31829012 DOI: 10.1021/acs.jafc.9b06817] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Obesity is caused by an imbalance of energy intake and expenditure. It is characterized by a higher accumulation of body fat with a chronic low-grade inflammation. Many reports have shown that gut microbiota in the host plays a pivotal role in mediating the interaction between consumption of a high-fat diet (HFD) and onset of obesity. Accumulative evidence has suggested that the changes in the composition of gut microbiota may affect the host's energy homeostasis, systemic inflammation, lipid metabolism, and insulin sensitivity. As one of the major components in human diet, polyphenols have demonstrated to be capable of modulating the composition of gut microbiota and reducing the HFD-induced obesity. The present review summarizes the findings of recent studies on dietary polyphenols regarding their metabolism and interaction with bacteria in the intestine as well as the underlying mechanisms by which they modulate the gut microbiota and alleviate the HFD-induced obesity.
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Affiliation(s)
- Jianhui Liu
- College of Food Science and Engineering , Nanjing University of Finance & Economics , Nanjing , China
- School of Life Sciences , The Chinese University of Hong Kong , Shatin NT , Hong Kong , China
| | - Zouyan He
- School of Life Sciences , The Chinese University of Hong Kong , Shatin NT , Hong Kong , China
| | - Ning Ma
- College of Food Science and Engineering , Nanjing University of Finance & Economics , Nanjing , China
- School of Life Sciences , The Chinese University of Hong Kong , Shatin NT , Hong Kong , China
| | - Zhen-Yu Chen
- School of Life Sciences , The Chinese University of Hong Kong , Shatin NT , Hong Kong , China
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108
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Rao SC, Esvaran M, Patole SK, Simmer KN, Gollow I, Keil A, Wemheuer B, Chen L, Conway PL. Gut microbiota in neonates with congenital gastrointestinal surgical conditions: a prospective study. Pediatr Res 2020; 88:878-886. [PMID: 32179871 PMCID: PMC7223116 DOI: 10.1038/s41390-020-0824-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 12/31/2019] [Accepted: 01/01/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND There is limited information on gut microbiota of neonates with congenital gastrointestinal surgical conditions (CGISCs) available. METHODS This study compared stool microbiota and short-chain fatty acids (SCFAs) of 37 term infants with CGISCs with 36 term healthy infants (HIs). Two stool samples were collected from each infant: as soon as possible after birth (week 1) and 10-14 days of life (week 2). RESULTS Bacterial richness and alpha diversity were comparable between CGISCs and HIs at week 1 and week 2 (all p > 0.05). Beta diversity analysis revealed that at week 1, CGISCs had similar community structures to HIs (p = 0.415). However, by week 2, community structures of CGISCs were significantly different from HIs (p = 0.003). At week 1, there were no significant differences in the relative abundances of genera Bifidobacterium and Bacteroides between CGISCs and HIs. At week 2, the relative abundance of Bifidobacterium was significantly lower in CGISCs (mean percentage 7.21 ± 13.49 vs. 28.96 ± 19.6; p = 0.002). Bacteroides were also less abundant in the CGISC group (mean percentage 0.12 ± 0.49 vs. 6.59 ± 8.62; p = 0.039). Relative abundance of genera Pseudomonas and Escherichia-Shigella were higher in CGISCs. At week 2, stool concentrations of all SCFAs were lower in CGISCs (all p < 0.001). CONCLUSIONS During hospitalization, neonates with CGISCs develop gut dysbiosis and deficiency of SCFAs. IMPACT During hospitalisation, neonates with congenital gastrointestinal surgical conditions develop gut dysbiosis with deficiency of Bifidobacteria and Bacteroides and increased abundance of Escherichia-Shigella and Pseudomonas. They also have low levels of short chain fatty acids in their stools compared to healthy infants. This is the first study evaluating the gut microbiota using 16S ribosomal RNA sequencing methods and stool short chain fatty acids in neonates with congenital gastrointestinal surgical conditions and comparing them to healthy infants. The findings of this study will pave the way for randomised trials of bifidobacterial supplementation in neonates with congenital gastrointestinal surgical conditions.
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Affiliation(s)
- Shripada C. Rao
- grid.415259.e0000 0004 0625 8678Neonatal Intensive Care Unit, Perth Children’s Hospital and King Edward Memorial Hospital for Women, Perth, WA Australia ,grid.1012.20000 0004 1936 7910Centre for Neonatal Research and Education, University of Western Australia, Perth, WA Australia
| | - Meera Esvaran
- grid.1005.40000 0004 4902 0432Centre for Marine Science and Innovation at the University of New South Wales (UNSW), Sydney, NSW Australia
| | - Sanjay K. Patole
- grid.415259.e0000 0004 0625 8678Neonatal Intensive Care Unit, Perth Children’s Hospital and King Edward Memorial Hospital for Women, Perth, WA Australia ,grid.1012.20000 0004 1936 7910Centre for Neonatal Research and Education, University of Western Australia, Perth, WA Australia
| | - Karen N. Simmer
- grid.415259.e0000 0004 0625 8678Neonatal Intensive Care Unit, Perth Children’s Hospital and King Edward Memorial Hospital for Women, Perth, WA Australia ,grid.1012.20000 0004 1936 7910Centre for Neonatal Research and Education, University of Western Australia, Perth, WA Australia
| | - Ian Gollow
- grid.410667.20000 0004 0625 8600Department of Paediatric Surgery, Perth Children’s Hospital, Perth, WA Australia
| | - Anthony Keil
- grid.2824.c0000 0004 0589 6117PathWest Laboratory Medicine, Perth, WA Australia
| | - Bernd Wemheuer
- grid.1005.40000 0004 4902 0432Centre for Marine Science and Innovation at the University of New South Wales (UNSW), Sydney, NSW Australia
| | - Liwei Chen
- grid.59025.3b0000 0001 2224 0361School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Patricia L. Conway
- grid.1005.40000 0004 4902 0432Centre for Marine Science and Innovation at the University of New South Wales (UNSW), Sydney, NSW Australia ,grid.59025.3b0000 0001 2224 0361School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
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109
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Tanaka M. Improving obesity and blood pressure. Hypertens Res 2019; 43:79-89. [PMID: 31649313 DOI: 10.1038/s41440-019-0348-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/28/2019] [Accepted: 09/30/2019] [Indexed: 01/09/2023]
Abstract
Obesity-associated hypertension is a serious public health concern. Sympathetic nervous system (SNS) overactivity, especially in the kidneys, is an important mechanism linking obesity to hypertension. Some adipokines play important roles in elevating blood pressure (BP). Hyperinsulinemia caused by insulin resistance stimulates sodium reabsorption, enhances sodium retention, and increases circulating plasma volume. Hyperinsulinemia also stimulates both the renin-angiotensin-aldosterone system (RAAS) and the SNS, resulting in the acceleration of atherosclerosis through the hypertrophy of vascular smooth muscle cells, which contributes to increased peripheral vascular resistance. Obesity is associated with increased RAAS activity despite volume overload, as the tissue RAASs are stimulated in obese hypertensive individuals. Mineralocorticoid receptor-associated hypertension must also be considered in obese patients with resistant hypertension. Obstructive sleep apnea syndrome (OSAS) is the most common cause of secondary hypertension. Some components of the gut microbiota contribute to BP control; therefore, gut dysbiosis caused by obesity might lead to increased BP. The ratio of visceral fat to subcutaneous fat is higher in Japanese patients than in Caucasian patients, which may explain why Japanese patients are more susceptible to metabolic disorders even though they are less obese than Caucasian individuals. Obesity-associated kidney dysfunction directly increases BP, leading to further deterioration of kidney function. A bodyweight reduction of more than 3% or 5 kg significantly lowers BP. Gastrointestinal bypass surgery is an effective treatment for morbid obesity and its related metabolic disorders, including hypertension. Because both obesity and hypertension are representative lifestyle-related disorders, lifestyle modification, especially to improve obesity, should be performed first as a treatment for hypertension.
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Affiliation(s)
- Masami Tanaka
- Department of Endocrinology, Metabolism, and Nephrology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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110
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Cryan JF, O'Riordan KJ, Cowan CSM, Sandhu KV, Bastiaanssen TFS, Boehme M, Codagnone MG, Cussotto S, Fulling C, Golubeva AV, Guzzetta KE, Jaggar M, Long-Smith CM, Lyte JM, Martin JA, Molinero-Perez A, Moloney G, Morelli E, Morillas E, O'Connor R, Cruz-Pereira JS, Peterson VL, Rea K, Ritz NL, Sherwin E, Spichak S, Teichman EM, van de Wouw M, Ventura-Silva AP, Wallace-Fitzsimons SE, Hyland N, Clarke G, Dinan TG. The Microbiota-Gut-Brain Axis. Physiol Rev 2019; 99:1877-2013. [DOI: 10.1152/physrev.00018.2018] [Citation(s) in RCA: 1243] [Impact Index Per Article: 248.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The importance of the gut-brain axis in maintaining homeostasis has long been appreciated. However, the past 15 yr have seen the emergence of the microbiota (the trillions of microorganisms within and on our bodies) as one of the key regulators of gut-brain function and has led to the appreciation of the importance of a distinct microbiota-gut-brain axis. This axis is gaining ever more traction in fields investigating the biological and physiological basis of psychiatric, neurodevelopmental, age-related, and neurodegenerative disorders. The microbiota and the brain communicate with each other via various routes including the immune system, tryptophan metabolism, the vagus nerve and the enteric nervous system, involving microbial metabolites such as short-chain fatty acids, branched chain amino acids, and peptidoglycans. Many factors can influence microbiota composition in early life, including infection, mode of birth delivery, use of antibiotic medications, the nature of nutritional provision, environmental stressors, and host genetics. At the other extreme of life, microbial diversity diminishes with aging. Stress, in particular, can significantly impact the microbiota-gut-brain axis at all stages of life. Much recent work has implicated the gut microbiota in many conditions including autism, anxiety, obesity, schizophrenia, Parkinson’s disease, and Alzheimer’s disease. Animal models have been paramount in linking the regulation of fundamental neural processes, such as neurogenesis and myelination, to microbiome activation of microglia. Moreover, translational human studies are ongoing and will greatly enhance the field. Future studies will focus on understanding the mechanisms underlying the microbiota-gut-brain axis and attempt to elucidate microbial-based intervention and therapeutic strategies for neuropsychiatric disorders.
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Affiliation(s)
- John F. Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Kenneth J. O'Riordan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Caitlin S. M. Cowan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Kiran V. Sandhu
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Thomaz F. S. Bastiaanssen
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Marcus Boehme
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Martin G. Codagnone
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Sofia Cussotto
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Christine Fulling
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Anna V. Golubeva
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Katherine E. Guzzetta
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Minal Jaggar
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Caitriona M. Long-Smith
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Joshua M. Lyte
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Jason A. Martin
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Alicia Molinero-Perez
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Gerard Moloney
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Emanuela Morelli
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Enrique Morillas
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Rory O'Connor
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Joana S. Cruz-Pereira
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Veronica L. Peterson
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Kieran Rea
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Nathaniel L. Ritz
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Eoin Sherwin
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Simon Spichak
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Emily M. Teichman
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Marcel van de Wouw
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Ana Paula Ventura-Silva
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Shauna E. Wallace-Fitzsimons
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Niall Hyland
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
| | - Timothy G. Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; and Department of Physiology, University College Cork, Cork, Ireland
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111
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Microbiota: a novel regulator of pain. J Neural Transm (Vienna) 2019; 127:445-465. [PMID: 31552496 DOI: 10.1007/s00702-019-02083-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
Among the various regulators of the nervous system, the gut microbiota has been recently described to have the potential to modulate neuronal cells activation. While bacteria-derived products can induce aversive responses and influence pain perception, recent work suggests that "abnormal" microbiota is associated with neurological diseases such as Alzheimer's, Parkinson's disease or autism spectrum disorder (ASD). Here we review how the gut microbiota modulates afferent sensory neurons function and pain, highlighting the role of the microbiota/gut/brain axis in the control of behaviors and neurological diseases. We outline the changes in gut microbiota, known as dysbiosis, and their influence on painful gastrointestinal disorders. Furthermore, both direct host/microbiota interaction that implicates activation of "pain-sensing" neurons by metabolites, or indirect communication via immune activation is discussed. Finally, treatment options targeting the gut microbiota, including pre- or probiotics, will be proposed. Further studies on microbiota/nervous system interaction should lead to the identification of novel microbial ligands and host receptor-targeted drugs, which could ultimately improve chronic pain management and well-being.
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112
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Xu M, Zhang X, Ren F, Yan T, Wu B, Bi K, Bi W, Jia Y. Essential oil of Schisandra chinensis ameliorates cognitive decline in mice by alleviating inflammation. Food Funct 2019; 10:5827-5842. [PMID: 31463498 DOI: 10.1039/c9fo00058e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this study, we aim to assess possible impacts of essential oil (SEO) from Schisandra chinensis (Turcz.) Baill. (S. chinensis) on mice with cognition impairment. Our data showed that SEO improved the cognitive ability of mice with Aβ1-42 or lipopolysaccharides (LPS)-induced Alzheimer's disease (AD) and suppressed the production of tumor necrosis factor-a (TNF-a), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in the hippocampus. Furthermore, SEO inhibited p38 activation, but had little effect on other signaling proteins in the MAPK family, such as extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase 1/2 (JNK). The SEO and BV-2 microglia co-culture was performed to further confirm the anti-inflammatory activity of SEO. The data showed that SEO decreased nitric oxide (NO) levels in LPS-stimulated BV-2 microglia and significantly blocked LPS-induced MAPKs activation. Taken together, these findings suggested that SEO produces anti-AD effects on AD mice partly by modulating neuroinflammation through the NF-κB/MAPK signaling pathway.
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Affiliation(s)
- Mengjie Xu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Xiaoying Zhang
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Fangyi Ren
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Tingxu Yan
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China.
| | - Bo Wu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China.
| | - Kaishun Bi
- The Engineering Laboratory of National and Local Union of Quality Control for Traditional Chinese Medicine, School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Wenchuan Bi
- School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen 518060, China
| | - Ying Jia
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China.
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113
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Prebiotics: Mechanisms and Preventive Effects in Allergy. Nutrients 2019; 11:nu11081841. [PMID: 31398959 PMCID: PMC6722770 DOI: 10.3390/nu11081841] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022] Open
Abstract
Allergic diseases now affect over 30% of individuals in many communities, particularly young children, underscoring the need for effective prevention strategies in early life. These allergic conditions have been linked to environmental and lifestyle changes driving the dysfunction of three interdependent biological systems: microbiota, epithelial barrier and immune system. While this is multifactorial, dietary changes are of particular interest in the altered establishment and maturation of the microbiome, including the associated profile of metabolites that modulate immune development and barrier function. Prebiotics are non-digestible food ingredients that beneficially influence the health of the host by 1) acting as a fermentable substrate for some specific commensal host bacteria leading to the release of short-chain fatty acids in the gut intestinal tract influencing many molecular and cellular processes; 2) acting directly on several compartments and specifically on different patterns of cells (epithelial and immune cells). Nutrients with prebiotic properties are therefore of central interest in allergy prevention for their potential to promote a more tolerogenic environment through these multiple pathways. Both observational studies and experimental models lend further credence to this hypothesis. In this review, we describe both the mechanisms and the therapeutic evidence from preclinical and clinical studies exploring the role of prebiotics in allergy prevention.
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114
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Monk JM, Wu W, Lepp D, Wellings HR, Hutchinson AL, Liddle DM, Graf D, Pauls KP, Robinson LE, Power KA. Navy bean supplemented high-fat diet improves intestinal health, epithelial barrier integrity and critical aspects of the obese inflammatory phenotype. J Nutr Biochem 2019; 70:91-104. [DOI: 10.1016/j.jnutbio.2019.04.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 04/03/2019] [Accepted: 04/25/2019] [Indexed: 02/07/2023]
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115
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Bilotta AJ, Cong Y. Gut microbiota metabolite regulation of host defenses at mucosal surfaces: implication in precision medicine. PRECISION CLINICAL MEDICINE 2019; 2:110-119. [PMID: 31281735 PMCID: PMC6598739 DOI: 10.1093/pcmedi/pbz008] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/27/2019] [Accepted: 05/02/2019] [Indexed: 12/19/2022] Open
Abstract
The gut microbiota has a well-established role in the regulation of host homeostasis. Multiple factors control the composition and function of the microbiota. The westernization of diet, a shift away from nutrient-dense foods toward diets high in saturated fats, has been implicated in the rise of chronic inflammatory diseases such as inflammatory bowel disease (IBD). Diet is critical in the development and maintenance of a healthy microbiome, where dietary fiber (found in the highest amounts in fruits, vegetables, and legumes) is metabolized by the microbiome. In turn, the bacterial metabolites of dietary fiber, short chain fatty acids (SCFAs), regulate gut homeostasis. SCFAs engage G-protein coupled receptors (GPRs) and act as histone deacetylase inhibitors (HDACi) to module epithelial and immune cell functions in the intestines, where they generally promote an anti-inflammatory state. This review highlights the functions of SCFAs and their roles in the pathogenesis of IBD to provide insights into their potential therapeutic application for the treatment of IBD for the purposes of precision medicine.
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Affiliation(s)
- Anthony J Bilotta
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.,Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
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116
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Etienne-Mesmin L, Chassaing B, Desvaux M, De Paepe K, Gresse R, Sauvaitre T, Forano E, de Wiele TV, Schüller S, Juge N, Blanquet-Diot S. Experimental models to study intestinal microbes–mucus interactions in health and disease. FEMS Microbiol Rev 2019; 43:457-489. [DOI: 10.1093/femsre/fuz013] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/31/2019] [Indexed: 02/06/2023] Open
Abstract
ABSTRACT
A close symbiotic relationship exists between the intestinal microbiota and its host. A critical component of gut homeostasis is the presence of a mucus layer covering the gastrointestinal tract. Mucus is a viscoelastic gel at the interface between the luminal content and the host tissue that provides a habitat to the gut microbiota and protects the intestinal epithelium. The review starts by setting up the biological context underpinning the need for experimental models to study gut bacteria-mucus interactions in the digestive environment. We provide an overview of the structure and function of intestinal mucus and mucins, their interactions with intestinal bacteria (including commensal, probiotics and pathogenic microorganisms) and their role in modulating health and disease states. We then describe the characteristics and potentials of experimental models currently available to study the mechanisms underpinning the interaction of mucus with gut microbes, including in vitro, ex vivo and in vivo models. We then discuss the limitations and challenges facing this field of research.
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Affiliation(s)
- Lucie Etienne-Mesmin
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Benoit Chassaing
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303 , USA
- Institute for Biomedical Sciences, Georgia State University, 100 Piedmont Ave, Atlanta, GA 30303 , USA
| | - Mickaël Desvaux
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Kim De Paepe
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Raphaële Gresse
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Thomas Sauvaitre
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Evelyne Forano
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Stephanie Schüller
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR7UQ, United Kingdom
| | - Nathalie Juge
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR7UQ, United Kingdom
| | - Stéphanie Blanquet-Diot
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
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117
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McIntyre RS, Subramaniapillai M, Shekotikhina M, Carmona NE, Lee Y, Mansur RB, Brietzke E, Fus D, Coles AS, Iacobucci M, Park C, Potts R, Amer M, Gillard J, James C, Anglin R, Surette MG. Characterizing the gut microbiota in adults with bipolar disorder: a pilot study. Nutr Neurosci 2019; 24:173-180. [PMID: 31132957 DOI: 10.1080/1028415x.2019.1612555] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Convergent evidence implicates gut microbiota in human health and disease. Hitherto, relatively few studies have evaluated the gut microbiota profile in individuals with bipolar disorder (BD) relative to healthy controls (HC). Methods: Fecal samples were collected from subjects (aged 18-65) meeting DSM-5-defined criteria for BD and age- and sex-matched HC without current or past history of mental or major medical disorders. Samples were sequenced using Illumina sequencing and association of specific taxa and co-occurrence of taxa with sample groups including the effect of diet was assessed using cluster analysis and analysis of communities of microorganisms (ANCOM). Nutritional composition was evaluated using the Dietary Questionnaire for Epidemiological Studies (DQES v2) Food Frequency Questionnaire. Results: Forty-six subjects were enrolled (n=23 BD, n=23 HC). Cluster analyses did not identify any significant differences between BD and HC (p=0.38). Lower microbiota diversity was observed among BD subjects relative to HC (p=0.04). A greater abundance of a Clostridiaceae OTU was observed among BD subjects when compared to HC and of Collinsella among BD-II subjects relative to BD-I. Cluster analysis revealed that neither diagnosis (p=0.38) nor diet (p=0.43) had a significant effect on overall gut microbiota composition. Limitations: This study has a small sample size and insufficient control for some potential moderating factors (e.g. psychotropic medication and smoking). Conclusion: This study suggests that individuals with BD may have a distinct gut microbiota profile compared to healthy controls, with a greater abundance of Clostridiaceae and Collinsella. These findings need to be replicated in future studies with larger sample sizes.
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Affiliation(s)
- Roger S McIntyre
- Department of Psychiatry and Pharmacology, University of Toronto, Toronto, Canada.,Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada.,Brain and Cognition Discovery Foundation, Toronto, Canada
| | | | | | - Nicole E Carmona
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Yena Lee
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Rodrigo B Mansur
- Department of Psychiatry and Pharmacology, University of Toronto, Toronto, Canada.,Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Elisa Brietzke
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Dominika Fus
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Alexandria S Coles
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Michelle Iacobucci
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Caroline Park
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Ryan Potts
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
| | - Merwa Amer
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
| | - Jessica Gillard
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
| | - Cindy James
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
| | - Rebecca Anglin
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
| | - Michael G Surette
- Department of Psychiatry and Gastroenterology, McMaster University, Hamilton, Canada
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118
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K. B. A, Madhavan A, T. R. R, Thomas S, Nisha P. Short chain fatty acids enriched fermentation metabolites of soluble dietary fibre from Musa paradisiaca drives HT29 colon cancer cells to apoptosis. PLoS One 2019; 14:e0216604. [PMID: 31095579 PMCID: PMC6522120 DOI: 10.1371/journal.pone.0216604] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/24/2019] [Indexed: 12/15/2022] Open
Abstract
In this study, the prebiotic potential of soluble dietary fibre extracted from plantain inflorescence (PIF) was investigated. PIF demonstrated prebiotic potential by enhancing the growth of the probiotics under study and thereby hindered colon cancer development. The soluble dietary fibre from Musa paradisiaca inflorescence (PIF) was fermented using Lactobacillus casei and Bifidobacterium bifidum. The fermentation supernatants (LS and BS) were enriched with short chain fatty acids (SCFA) and were able to initiate apoptotic signalling in HT29 colon cancer cells leading to cell death. Both BS and LS exhibited cytotoxic effect; induced DNA damage and enhanced generation of reactive oxygen species in HT29 cells leading to apoptosis. The induction of apoptosis was facilitated by the reduction of membrane potential of mitochondria and ATP synthesis; enhanced delivery of cytochrome c and interference with the expression of pro/antiapoptotic proteins. BS, which exhibited better activity, was further analysed for the identification of differentially regulated proteins by performing two dimensional electrophoresis and MALDI-TOF mass spectrometry. Results emphasized on the fact that, the exposure to BSalteredthe HT29 proteins expression, particularly the upregulation of apoptosis- inducing factor-AIFM1 leading to apoptosis of HT29 cells.
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Affiliation(s)
- Arun K. B.
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, India
| | - Aravind Madhavan
- Microbial Processing and Technology Division, CSIR-NIIST, Thiruvananthapuram, Kerala, India
| | - Reshmitha T. R.
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Sithara Thomas
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - P. Nisha
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
- * E-mail:
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119
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Xu F, Zhu L, Qian C, Zhou J, Geng D, Li P, Xuan W, Wu F, Zhao K, Kong W, Qin Y, Liang L, Liu L, Liu X. Impairment of Intestinal Monocarboxylate Transporter 6 Function and Expression in Diabetic Rats Induced by Combination of High-Fat Diet and Low Dose of Streptozocin: Involvement of Butyrate-Peroxisome Proliferator-Activated Receptor- γ Activation. Drug Metab Dispos 2019; 47:556-566. [PMID: 30923035 DOI: 10.1124/dmd.118.085803] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/26/2019] [Indexed: 12/13/2022] Open
Abstract
Generally, diabetes remarkably alters the expression and function of intestinal drug transporters. Nateglinide and bumetanide are substrates of monocarboxylate transporter 6 (MCT6). We investigated whether diabetes down-regulated the function and expression of intestinal MCT6 and the possible mechanism in diabetic rats induced by a combination of high-fat diet and low-dose streptozocin. Our results indicated that diabetes significantly decreased the oral plasma exposure of nateglinide. The plasma peak concentration and area under curve in diabetic rats were 16.9% and 28.2% of control rats, respectively. Diabetes significantly decreased the protein and mRNA expressions of intestinal MCT6 and oligopeptide transporter 1 (PEPT1) but up-regulated peroxisome proliferator-activated receptor γ (PPARγ) protein level. Single-pass intestinal perfusion demonstrated that diabetes prominently decreased the absorption of nateglinide and bumetanide. The MCT6 inhibitor bumetanide, but not PEPT1 inhibitor glycylsarcosine, significantly inhibited intestinal absorption of nateglinide in rats. Coadministration with bumetanide remarkably decreased the oral plasma exposure of nateglinide in rats. High concentrations of butyrate were detected in the intestine of diabetic rats. In Caco-2 cells (a human colorectal adenocarcinoma cell line), bumetanide and MCT6 knockdown remarkably inhibited the uptake of nateglinide. Butyrate down-regulated the function and expression of MCT6 in a concentration-dependent manner but increased PPARγ expression. The decreased expressions of MCT6 by PPARγ agonist troglitazone or butyrate were reversed by both PPARγ knockdown and PPARγ antagonist 2-chloro-5-nitro-N-phenylbenzamide (GW9662). Four weeks of butyrate treatment significantly decreased the oral plasma concentrations of nateglinide in rats, accompanied by significantly higher intestinal PPARγ and lower MCT6 protein levels. In conclusion, diabetes impaired the expression and function of intestinal MCT6 partly via butyrate-mediated PPARγ activation, decreasing the oral plasma exposure of nateglinide.
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Affiliation(s)
- Feng Xu
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Liang Zhu
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Chaoqun Qian
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Junjie Zhou
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Donghao Geng
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Ping Li
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Wenjing Xuan
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Fangge Wu
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Kaijing Zhao
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Weimin Kong
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Yuanyuan Qin
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Limin Liang
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Li Liu
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Xiaodong Liu
- Center of Drug Metabolism and Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
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Snelson M, Kellow NJ, Coughlan MT. Modulation of the Gut Microbiota by Resistant Starch as a Treatment of Chronic Kidney Diseases: Evidence of Efficacy and Mechanistic Insights. Adv Nutr 2019; 10:303-320. [PMID: 30668615 PMCID: PMC6416045 DOI: 10.1093/advances/nmy068] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/17/2018] [Accepted: 08/12/2018] [Indexed: 12/14/2022] Open
Abstract
Chronic kidney disease (CKD) has been associated with changes in gut microbial ecology, or "dysbiosis," which may contribute to disease progression. Recent studies have focused on dietary approaches to favorably alter the composition of the gut microbial communities as a treatment method in CKD. Resistant starch (RS), a prebiotic that promotes proliferation of gut bacteria such as Bifidobacteria and Lactobacilli, increases the production of metabolites including short-chain fatty acids, which confer a number of health-promoting benefits. However, there is a lack of mechanistic insight into how these metabolites can positively influence renal health. Emerging evidence shows that microbiota-derived metabolites can regulate the incretin axis and mitigate inflammation via expansion of regulatory T cells. Studies from animal models and patients with CKD show that RS supplementation attenuates the concentrations of uremic retention solutes, including indoxyl sulfate and p-cresyl sulfate. Here, we present the current state of knowledge linking the microbiome to CKD, we explore the efficacy of RS in animal models of CKD and in humans with the condition, and we discuss how RS supplementation could be a promising dietary approach for slowing CKD progression.
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Affiliation(s)
- Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Nicole J Kellow
- Be Active Sleep & Eat (BASE) Facility, Department of Nutrition, Dietetics, and Food, Monash University, Notting Hill, Victoria, Australia
| | - Melinda T Coughlan
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Baker Heart Research Institute, Melbourne, Victoria, Australia
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121
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Su A, Ma G, Xie M, Ji Y, Li X, Zhao L, Hu Q. Characteristic of polysaccharides from
Flammulina velutipes in vitro
digestion under salivary, simulated gastric and small intestinal conditions and fermentation by human gut microbiota. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14142] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anxiang Su
- College of Food Science and Technology Nanjing Agricultural University Nanjing 210095 Jiangsu China
| | - Gaoxing Ma
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing 210023 Jiangsu China
| | - Minhao Xie
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing 210023 Jiangsu China
| | - Yang Ji
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing 210023 Jiangsu China
| | - Xiangfei Li
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing 210023 Jiangsu China
| | - Liyan Zhao
- College of Food Science and Technology Nanjing Agricultural University Nanjing 210095 Jiangsu China
| | - Qiuhui Hu
- College of Food Science and Technology Nanjing Agricultural University Nanjing 210095 Jiangsu China
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing 210023 Jiangsu China
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122
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Diao H, Jiao AR, Yu B, Mao XB, Chen DW. Gastric infusion of short-chain fatty acids can improve intestinal barrier function in weaned piglets. GENES AND NUTRITION 2019; 14:4. [PMID: 30761185 PMCID: PMC6359775 DOI: 10.1186/s12263-019-0626-x] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/08/2019] [Indexed: 12/21/2022]
Abstract
Background The present study was conducted to investigate the effects of gastric infusion of short-chain fatty acids (SCFA) on gut barrier function in a pig model. In this study, 21 DLY barrows with an average initial body weight of (8.31 ± 0.72) kg were randomly allotted into three treatments: (1) control, (2) infusing low SCFA, S1, (3) infusing high SCFA, S2. The experimental period lasted for 7 days. Results Gastric infusion of SCFA increased the concentrations of SCFA in serum and digesta, and enhanced the mRNA and protein abundances of SCFA receptors in pig intestine (P < 0.05). Moreover, gastric infusion of SCFA led to alteration of intestinal morphology, elevation of intestinal development-related gene abundances, and decrease of apoptotic cell percentage, as well as reduction of pro-apoptosis gene and protein abundances (P < 0.05). Besides, the jejunal SLC7A1 and ileal DMT1 mRNA abundances in the SCFA infusion groups were higher than those in the control group (P < 0.05). Additionally, gastric infusion of SCFA increased the mRNA abundances of Occludin and Claudin-1 in the duodenum and ileum, enhanced Lactobacillus spp counts in the ileal digesta, decreased the mRNA and protein abundances of IL-1β in the colon, and reduced Escherichia coli count in the ileal digesta (P < 0.05). Conclusions These data indicated that gastric infusion of SCFA, especially high SCFA concentration, may be beneficial to gut development of piglets via improving gut morphology, decreasing apoptotic cell percentage, and maintaining intestinal barrier function. Electronic supplementary material The online version of this article (10.1186/s12263-019-0626-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- H Diao
- 1Institute of Animal Nutrition, Sichuan Agricultural University, Xinkang Road 46#, Ya'an, 625014 Sichuan Province People's Republic of China.,Animal Breeding and Genetics key Laboratory of Sichuan Province, Sichuan Academy of Animal Science, Chengdu, Sichuan Province People's Republic of China
| | - A R Jiao
- 1Institute of Animal Nutrition, Sichuan Agricultural University, Xinkang Road 46#, Ya'an, 625014 Sichuan Province People's Republic of China
| | - B Yu
- 1Institute of Animal Nutrition, Sichuan Agricultural University, Xinkang Road 46#, Ya'an, 625014 Sichuan Province People's Republic of China
| | - X B Mao
- 1Institute of Animal Nutrition, Sichuan Agricultural University, Xinkang Road 46#, Ya'an, 625014 Sichuan Province People's Republic of China
| | - D W Chen
- 1Institute of Animal Nutrition, Sichuan Agricultural University, Xinkang Road 46#, Ya'an, 625014 Sichuan Province People's Republic of China
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123
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Colonization and Gut Flora Modulation of Lactobacillus kefiranofaciens ZW3 in the Intestinal Tract of Mice. Probiotics Antimicrob Proteins 2019; 10:374-382. [PMID: 28578494 DOI: 10.1007/s12602-017-9288-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This study evaluated the distribution and colonization of Lactobacillus kefiranofaciens ZW3 and determined its capacity to modulate the gut microbiota in an animal model. Based on (1) fluorescence imaging, (2) flow cytometry, and (3) qPCR, we found that ZW3 successfully adhered to mouse mucous tissue and colonized the mouse ileum. Gut microbiota profiling was performed using high-throughput sequencing. After continuous intubation with ZW3 for 1 week, the proportion of Lachnospiraceae, a family of butyric acid-producing bacteria, increased at day 7 (11.9% at day 0 versus 18.4% at day 7). In addition, Lactobacillaceae showed an increasing trend (4% at day 0 versus 13% at day 7) that was accompanied by an observable decline in the Rikenellaceae family (1.58% at day 7, 0.14% at day 14, and 0.75% at day 21) in the tested mouse. The results demonstrate that ZW3 could successfully adhere to and colonize the mouse gut throughout the course of the experiment. The profiling analysis of the gut microbiota also provided evidence supporting the function of ZW3 in improving the intestinal flora of mice.
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124
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Probiotic Bacillus coagulans MTCC 5856 spores exhibit excellent in-vitro functional efficacy in simulated gastric survival, mucosal adhesion and immunomodulation. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.10.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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125
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de la Cuesta-Zuluaga J, Mueller NT, Álvarez-Quintero R, Velásquez-Mejía EP, Sierra JA, Corrales-Agudelo V, Carmona JA, Abad JM, Escobar JS. Higher Fecal Short-Chain Fatty Acid Levels Are Associated with Gut Microbiome Dysbiosis, Obesity, Hypertension and Cardiometabolic Disease Risk Factors. Nutrients 2018; 11:E51. [PMID: 30591685 PMCID: PMC6356834 DOI: 10.3390/nu11010051] [Citation(s) in RCA: 306] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 12/16/2022] Open
Abstract
Fiber fermentation by gut microbiota yields short-chain fatty acids (SCFAs) that are either absorbed by the gut or excreted in feces. Studies are conflicting as to whether SCFAs are beneficial or detrimental to cardiometabolic health, and how gut microbiota associated with SCFAs is unclear. In this study of 441 community-dwelling adults, we examined associations of fecal SCFAs, gut microbiota diversity and composition, gut permeability, and cardiometabolic outcomes, including obesity and hypertension. We assessed fecal microbiota by 16S rRNA gene sequencing, and SCFA concentrations by gas chromatography/mass spectrometry. Fecal SCFA concentrations were inversely associated with microbiota diversity, and 70 unique microbial taxa were differentially associated with at least one SCFA (acetate, butyrate or propionate). Higher SCFA concentrations were associated with a measure of gut permeability, markers of metabolic dysregulation, obesity and hypertension. Microbial diversity showed association with these outcomes in the opposite direction. Associations were significant after adjusting for measured confounders. In conclusion, higher SCFA excretion was associated with evidence of gut dysbiosis, gut permeability, excess adiposity, and cardiometabolic risk factors. Studies assessing both fecal and circulating SCFAs are needed to test the hypothesis that the association of higher fecal SCFAs with obesity and cardiometabolic dysregulation is due to less efficient SCFA absorption.
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Affiliation(s)
- Jacobo de la Cuesta-Zuluaga
- Vidarium⁻Nutrition, Health and Wellness Research Center, Grupo Empresarial Nutresa, Calle 8 sur #50-67, 050023 Medellin, Colombia.
| | - Noel T Mueller
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205, USA.
- Welch Center for Epidemiology, Prevention and Clinical Research, Johns Hopkins Medical Institutions, 2024 E. Monument Street, Baltimore, MD 21205, USA.
| | - Rafael Álvarez-Quintero
- Grupo de Investigación en Sustancias Bioactivas, Sede de Investigación Universitaria (SIU), Universidad de Antioquia, Calle 62 #52-59, 050010 Medellin, Colombia.
| | - Eliana P Velásquez-Mejía
- Vidarium⁻Nutrition, Health and Wellness Research Center, Grupo Empresarial Nutresa, Calle 8 sur #50-67, 050023 Medellin, Colombia.
| | - Jelver A Sierra
- Vidarium⁻Nutrition, Health and Wellness Research Center, Grupo Empresarial Nutresa, Calle 8 sur #50-67, 050023 Medellin, Colombia.
| | - Vanessa Corrales-Agudelo
- Vidarium⁻Nutrition, Health and Wellness Research Center, Grupo Empresarial Nutresa, Calle 8 sur #50-67, 050023 Medellin, Colombia.
| | - Jenny A Carmona
- Dinámica IPS, Especialista en Ayudas Diagnósticas, Calle 27 #45-109, 050021 Medellin, Colombia.
| | - José M Abad
- EPS SURA, Calle 49A #63-55, 050034 Medellin, Colombia.
| | - Juan S Escobar
- Vidarium⁻Nutrition, Health and Wellness Research Center, Grupo Empresarial Nutresa, Calle 8 sur #50-67, 050023 Medellin, Colombia.
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126
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Davoren MJ, Liu J, Castellanos J, Rodríguez-Malavé NI, Schiestl RH. A novel probiotic, Lactobacillus johnsonii 456, resists acid and can persist in the human gut beyond the initial ingestion period. Gut Microbes 2018; 10:458-480. [PMID: 30580660 PMCID: PMC6748577 DOI: 10.1080/19490976.2018.1547612] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/14/2018] [Accepted: 11/06/2018] [Indexed: 02/03/2023] Open
Abstract
Probiotics are considered to have multiple beneficial effects on the human gastrointestinal tract, including immunomodulation, pathogen inhibition, and improved host nutrient metabolism. However, extensive characterization of these properties is needed to define suitable clinical applications for probiotic candidates. Lactobacillus johnsonii 456 (LBJ 456) was previously demonstrated to have anti-inflammatory and anti-genotoxic effects in a mouse model. Here, we characterize its resistance to gastric and bile acids as well as its ability to inhibit gut pathogens and adhere to host mucosa. While bile resistance and in vitro host attachment properties of LBJ 456 were comparable to other tested probiotics, LBJ 456 maintained higher viability at lower pH conditions compared to other tested strains. LBJ 456 also altered pathogen adhesion to LS 174T monolayers and demonstrated contact-dependent and independent inhibition of pathogen growth. Genome analyses further revealed possible genetic elements involved in host attachment and pathogen inhibition. Importantly, we show that ingestion of Lactobacillus johnsonii 456 over a one week yogurt course leads to persistent viable bacteria detectable even beyond the period of initial ingestion, unlike many other previously described probiotic species of lactic acid bacteria.
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Affiliation(s)
- Michael J. Davoren
- Molecular Toxicology Interdepartmental Program, Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Jared Liu
- School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Jocelyn Castellanos
- Molecular Toxicology Interdepartmental Program, Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | | | - Robert H. Schiestl
- Molecular Toxicology Interdepartmental Program, Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
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127
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Neumann G, Wall R, Rangel I, Marques TM, Repsilber D. Qualitative modelling of the interplay of inflammatory status and butyrate in the human gut: a hypotheses about robust bi-stability. BMC SYSTEMS BIOLOGY 2018; 12:144. [PMID: 30558589 PMCID: PMC6296070 DOI: 10.1186/s12918-018-0667-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/21/2018] [Indexed: 02/10/2023]
Abstract
Background Gut microbiota interacts with the human gut in multiple ways. Microbiota composition is altered in inflamed gut conditions. Likewise, certain microbial fermentation products as well as the lipopolysaccharides of the outer membrane are examples of microbial products with opposing influences on gut epithelium inflammation status. This system of intricate interactions is known to play a core role in human gut inflammatory diseases. Here, we present and analyse a simplified model of bidirectional interaction between the microbiota and the host: in focus is butyrate as an example for a bacterial fermentation product with anti-inflammatory properties. Results We build a dynamical model based on an existing model of inflammatory regulation in gut epithelial cells. Our model introduces both butyrate as a bacterial product which counteracts inflammation, as well as bacterial LPS as a pro-inflammatory bacterial product. Moreover, we propose an extension of this model that also includes a feedback interaction towards bacterial composition. The analysis of these dynamical models shows robust bi-stability driven by butyrate concentrations in the gut. The extended model hints towards a further possible enforcement of the observed bi-stability via alteration of gut bacterial composition. A theoretical perspective on the stability of the described switch-like character is discussed. Conclusions Interpreting the results of this qualitative model allows formulating hypotheses about the switch-like character of inflammatory regulation in the gut epithelium, involving bacterial products as constitutive parts of the system. We also speculate about possible explanations for observed bimodal distributions in bacterial compositions in the human gut. The switch-like behaviour of the system proved to be mostly independent of parameter choices. Further implications of the qualitative character of our modeling approach for the robustness of the proposed hypotheses are discussed, as well as the pronounced role of butyrate compared to other inflammatory regulators, especially LPS, NF- κB and cytokines. Electronic supplementary material The online version of this article (10.1186/s12918-018-0667-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gunter Neumann
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Rebecca Wall
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Ignacio Rangel
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Tatiana M Marques
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Dirk Repsilber
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden.
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128
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Skonieczna-Żydecka K, Grochans E, Maciejewska D, Szkup M, Schneider-Matyka D, Jurczak A, Łoniewski I, Kaczmarczyk M, Marlicz W, Czerwińska-Rogowska M, Pełka-Wysiecka J, Dec K, Stachowska E. Faecal Short Chain Fatty Acids Profile is Changed in Polish Depressive Women. Nutrients 2018; 10:E1939. [PMID: 30544489 PMCID: PMC6316414 DOI: 10.3390/nu10121939] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 11/28/2018] [Accepted: 12/05/2018] [Indexed: 12/27/2022] Open
Abstract
Short chain fatty acids (SCFAs) being produced during fermentation of non-digestible polysaccharides are regulatory compounds with the potential to influence inflammatory, as well as emotional state and cognition through the gut⁻brain axis. We analyzed the association between stool concentration of SCFAs (acetic acid (C 2:0), propionic acid (C 3:0), isobutyric acid (C 4:0 i), butyric acid (C 4:0 n), isovaleric acid (C 5:0 i) valeric acid (C 5:0 n), isocaproic acid (C 6:0 i), caproic acid, and (C 6:0 n) heptanoic acid (C 7:0)) and depressive symptoms among women and looked for the potential confounders of microbiota byproduct synthesis. We enrolled 116 women aged 52.0 ± 4.7 years and recognized depression in 47 (40.52%). To analyze the emotional state, Beck's Depression Inventory (BDI) was used. We assessed SCFAs content by means of gas chromatography. Fiber intake was estimated using parts of food frequency questionnaire. The content of acetic acid was significantly lowered compared to non-depressed women (median {IQR}: 29.49 {20.81} vs. 34.99 {19.55}, p = 0.04). A tendency toward decreased level of propionic acid was noticed (median {IQR}: 16.88 {9.73} vs. 21.64 {12.17}, p = 0.07), while the concentration of isocaproic acid was significantly increased in (median {IQR}: 0.89 {1.15} vs. 0.56 {0.95}, p < 0.01) comparison to matched healthy subjects. We found negative correlations between acetate, propionate, and Beck's score (r = -0.2, p = 0.03; r = -0.21, p = 0.02, respectively). Statistically significant correlations between acetate and propionate and BDI somatic score (r = -0.21, p = 0.01; r = -0.17, p = 0.03), as well as correlations regarding isocaproic and both cognitive/affective (r = 0.37, p = 0.0001) and somatic (r = 9.37, p < 0.001) scores were found. Women who declared current usage of lipid-lowering and thyroid drugs in the past, had higher content of C6:0-i (Users; median {IQR}: 1.91 {3.62} vs. non-users; 0.55 {0.67}; p = 0.0048).and lower of C2:0 (Users; median {IQR}: 23.07 {12.80} vs. non users 33.73 {21.44}; p = 0.041), respectively. No correlations regarding SCFAs concentration and fiber intake were found. We concluded that SCFAs may potentially contribute to depression phenotype, however, due to the small size of groups suffering from moderately heavy (n = 5) and severe (n = 7) depression, the conclusion should be treated with caution. Pharmacotherapy of hyperlipidemia and thyroid disease might affect SCFAs synthesis. Studies with more participants are required.
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Affiliation(s)
| | - Elżbieta Grochans
- Department of Nursing, Pomeranian Medical University, 71-210 Szczecin, Poland.
| | - Dominika Maciejewska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, 71-460 Szczecin, Poland.
| | - Małgorzata Szkup
- Department of Nursing, Pomeranian Medical University, 71-210 Szczecin, Poland.
| | | | - Anna Jurczak
- Department of Clinical Nursing, Pomeranian Medical University, 71-210 Szczecin, Poland.
| | - Igor Łoniewski
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, 71-460 Szczecin, Poland.
| | - Mariusz Kaczmarczyk
- Department of Clinical and Molecular Biochemistry, Pomeranian Medical University, 70-111 Szczecin, Poland.
| | - Wojciech Marlicz
- Department of Gastroenterology, Pomeranian Medical University, 71-252 Szczecin, Poland.
| | - Maja Czerwińska-Rogowska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, 71-460 Szczecin, Poland.
| | | | - Karolina Dec
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, 71-460 Szczecin, Poland.
| | - Ewa Stachowska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, 71-460 Szczecin, Poland.
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Azhari A, Azizan F, Esposito G. A systematic review of gut-immune-brain mechanisms in Autism Spectrum Disorder. Dev Psychobiol 2018; 61:752-771. [PMID: 30523646 DOI: 10.1002/dev.21803] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/10/2018] [Accepted: 10/09/2018] [Indexed: 12/13/2022]
Abstract
Despite decades of research, the etiological origins of Autism Spectrum Disorder (ASD) remain elusive. Recently, the mechanisms of ASD have encompassed emerging theories involving the gastrointestinal, immune, and nervous systems. While each of these perspectives presents its own set of supporting evidence, the field requires an integration of these modular concepts and an overarching view of how these subsystems intersect. In this systematic review, we have synthesized relevant evidences from the existing literature, evaluating them in an interdependent manner and in doing so, outlining their possible connections. Specifically, we first discussed gastrointestinal and immuno-inflammation pathways in-depth, exploring the relationships between microbial composition, bacterial metabolites, gut mucosa, and immune system constituents. Accounting for temporal differences in the mechanisms involved in neurodevelopment, prenatal and postnatal phases were further elucidated, where the former focused on maternal immune activation (MIA) and fetal development, while the latter addressed the role of immune dysregulation in contributing to atypical neurodevelopment. As autism remains, foremost, a neurodevelopmental disorder, this review presents an integration of disparate modules into a "Gut-Immune-Brain" paradigm. Existing gaps in the literature have been highlighted, and possible avenues for future research with an integrated physiological perspective underlying ASD have also been suggested.
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Affiliation(s)
- Atiqah Azhari
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | - Farouq Azizan
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | - Gianluca Esposito
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore.,Department of Psychology and Cognitive Science, University of Trento, Rovereto, TN, Italy
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130
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Nath A, Molnár MA, Csighy A, Kőszegi K, Galambos I, Huszár KP, Koris A, Vatai G. Biological Activities of Lactose-Based Prebiotics and Symbiosis with Probiotics on Controlling Osteoporosis, Blood-Lipid and Glucose Levels. ACTA ACUST UNITED AC 2018; 54:medicina54060098. [PMID: 30513975 PMCID: PMC6306850 DOI: 10.3390/medicina54060098] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 11/28/2018] [Indexed: 02/07/2023]
Abstract
Lactose-based prebiotics are synthesized by enzymatic- or microbial- biotransformation of lactose and have unique functional values. In this comprehensive review article, the biochemical mechanisms of controlling osteoporosis, blood-lipid, and glucose levels by lactose-based prebiotics and symbiosis with probiotics are reported along with the results of clinical investigations. Interaction between lactose-based prebiotics and probiotics reduces osteoporosis by (a) transforming insoluble inorganic salts to soluble and increasing their absorption to gut wall; (b) maintaining and protecting mineral absorption surface in the intestine; (c) increasing the expression of calcium-binding proteins in the gut wall; (d) remodeling osteoclasts and osteoblasts formation; (e) releasing bone modulating factors; and (f) degrading mineral complexing phytic acid. Lactose-based prebiotics with probiotics control lipid level in the bloodstream and tissue by (a) suppressing the expressions of lipogenic- genes and enzymes; (b) oxidizing fatty acids in muscle, liver, and adipose tissue; (c) binding cholesterol with cell membrane of probiotics and subsequent assimilation by probiotics; (d) enzymatic-transformations of bile acids; and (e) converting cholesterol to coprostanol and its defecation. Symbiosis of lactose-based prebiotics with probiotics affect plasma glucose level by (a) increasing the synthesis of gut hormones plasma peptide-YY, glucagon-like peptide-1 and glucagon-like peptide-2 from entero-endocrine L-cells; (b) altering glucose assimilation and metabolism; (c) suppressing systematic inflammation; (d) reducing oxidative stress; and (e) producing amino acids. Clinical investigations show that lactose-based prebiotic galacto-oligosaccharide improves mineral absorption and reduces hyperlipidemia. Another lactose-based prebiotic, lactulose, improves mineral absorption, and reduces hyperlipidemia and hyperglycemia. It is expected that this review article will be of benefit to food technologists and medical practitioners.
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Affiliation(s)
- Arijit Nath
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Üllő út., H-3 Nagykanizsa, Hungary.
| | - Máté András Molnár
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
| | - Attila Csighy
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
| | - Kornélia Kőszegi
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
| | - Ildikó Galambos
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Üllő út., H-3 Nagykanizsa, Hungary.
| | - Klára Pásztorné Huszár
- Department of Refrigeration and Livestock Product Technology, Faculty of Food Science, Szent István University, Ménesi st 43⁻45, HU-1118 Budapest, Hungary.
| | - András Koris
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
| | - Gyula Vatai
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, HU-1118 Budapest, Hungary.
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The divergent restoration effects of Lactobacillus strains in antibiotic-induced dysbiosis. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Liu Z, Wang X, Ou S, Arowolo MA, Hou DX, He J. Effects of Achyranthes bidentata Polysaccharides on Intestinal Morphology, Immune Response, and Gut Microbiome in Yellow Broiler Chickens Challenged with Escherichia coli K88. Polymers (Basel) 2018; 10:E1233. [PMID: 30961158 PMCID: PMC6401798 DOI: 10.3390/polym10111233] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/01/2018] [Accepted: 11/03/2018] [Indexed: 12/19/2022] Open
Abstract
The present study was conducted to investigate the effects of dietary Achyranthes bidentata polysaccharide (ABPS) supplementation on performance, immune response, intestinal mucosal morphology, and gut microbiome in yellow-feathered broilers challenged with Escherichia coli K88. A 2 × 2 factorial design was used for the trial. Two hundred and forty one-day-old female broilers were randomly assigned to four treatments: (1) negative-control broilers were fed by a basal diet and saline (NG); (2) positive-control broilers were fed by a basal diet and orally challenged with 10⁸ CFU E. coli K88 (CNG); (3) ABP group broilers were fed by a basal diet containing ABPS (500 mg/kg of feed) and saline; (4) CABP group broilers were fed by a basal diet containing ABPS (500 mg/kg of feed) and orally challenged with 10⁸ CFU E. coli K88. Growth performance, serum biochemical indexes, immune responses, intestinal mucosal morphology, and cecal microbial community structure were evaluated. The ABP group had greatest body weight (BW), average daily body weight gain (ADG), and intestinal villus height compared to other treatments (p < 0.05). The CABP group had a higher villus height/crypt depth ratio (V/C) compared with other treatments (p < 0.05). The expression levels of NF-κB were lower in the ABP group. The CNG group had higher Escherichia coli and Enterococcus contents in cecal samples compared to other treatments (p < 0.05). Serum glucose, uric acid, TNF-α, and Secretory Immunoglobulin A (S-IgA) levels were higher in broilers challenged with E. coli (p < 0.001) than that with saline. Broilers challenged with E. coli had reduced taxa richness in the cecal samples. Sequencing of 16S rRNA genes in cecal samples revealed that a lower proportion of Firmicutes and a higher proportion of Proteobacteria were detected in the broilers challenged with E. coli. Compared with the controls, dietary ABPS supplementation increased serum total protein, albumin, and S-IgA levels, but decreased serum glucose, uric acid, and TNF-α levels in broilers (p < 0.05). Diet supplemented with ABPS increased the Firmicutes/Bacteroidetes ratio and the abundance of Ruminococcaceae and Lachnospiraceae, and altered cecal microbiota community structure. These results suggest that ABPS can promote growth performance and improve intestinal morphology and microbiota community structure in broilers challenged with E. coli K88.
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Affiliation(s)
- Zhuying Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
- The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima 890-0065, Japan.
| | - Xiaolong Wang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
| | - Shuqi Ou
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
| | - Muhammed Adebayo Arowolo
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
| | - De-Xing Hou
- The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima 890-0065, Japan.
| | - Jianhua He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
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134
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Bajaj JS, Kakiyama G, Savidge T, Takei H, Kassam ZA, Fagan A, Gavis EA, Pandak WM, Nittono H, Hylemon PB, Boonma P, Haag A, Heuman DM, Fuchs M, John B, Sikaroodi M, Gillevet PM. Antibiotic-Associated Disruption of Microbiota Composition and Function in Cirrhosis Is Restored by Fecal Transplant. Hepatology 2018; 68:1549-1558. [PMID: 29665102 DOI: 10.1002/hep.30037] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/02/2018] [Accepted: 04/06/2018] [Indexed: 12/11/2022]
Abstract
UNLABELLED Patients with cirrhosis are often exposed to antibiotics that can lead to resistance and fungal overgrowth. The role of fecal microbial transplant (FMT) in restoring gut microbial function is unclear in cirrhosis. In a Food and Drug Administration-monitored phase 1 clinical safety trial, patients with decompensated cirrhosis on standard therapies (lactulose and rifaximin) were randomized to standard-of-care (SOC, no antibiotics/FMT) or 5 days of broad-spectrum antibiotics followed by FMT from a donor enriched in Lachnospiraceae and Ruminococcaceae. Microbial composition (diversity, family-level relative abundances), function (fecal bile acid [BA] deconjugation, 7α-dehydroxylation, short-chain fatty acids [SCFAs]), and correlations between Lachnospiraceae, Ruminococcaceae, and clinical variables were analyzed at baseline, postantibiotics, and 15 days post-FMT. FMT was well tolerated. Postantibiotics, there was a reduced microbial diversity and autochthonous taxa relative abundance. This was associated with an altered fecal SCFA and BA profile. Correlation linkage changes from beneficial at baseline to negative after antibiotics. All of these parameters became statistically similar post-FMT to baseline levels. No changes were seen in the SOC group. CONCLUSION In patients with advanced cirrhosis on lactulose and rifaximin, FMT restored antibiotic-associated disruption in microbial diversity and function. (Hepatology 2018; 00:000-000).
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Affiliation(s)
- Jasmohan S Bajaj
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Genta Kakiyama
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Tor Savidge
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX
| | - Hajime Takei
- Junshin Clinic Bile Acid Institute, Tokyo, Japan
| | | | - Andrew Fagan
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Edith A Gavis
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - William M Pandak
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | | | - Phillip B Hylemon
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Prapaporn Boonma
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX
| | - Anthony Haag
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX
| | - Douglas M Heuman
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Michael Fuchs
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
| | - Binu John
- Virginia Commonwealth University and McGuire VA Medical Center, Richmond, VA
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135
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Anand S, Mande SS. Diet, Microbiota and Gut-Lung Connection. Front Microbiol 2018; 9:2147. [PMID: 30283410 PMCID: PMC6156521 DOI: 10.3389/fmicb.2018.02147] [Citation(s) in RCA: 248] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/21/2018] [Indexed: 12/19/2022] Open
Abstract
The gut microbial community (Gut microbiota) is known to impact metabolic functions as well as immune responses in our body. Diet plays an important role in determining the composition of the gut microbiota. Gut microbes help in assimilating dietary nutrients which are indigestible by humans. The metabolites produced by them not only modulate gastro-intestinal immunity, but also impact distal organs like lung and brain. Micro-aspiration of gut bacteria or movement of sensitized immune cells through lymph or bloodstream can also influence immune response of other organs. Dysbiosis in gut microbiota has been implicated in several lung diseases, including allergy, asthma and cystic fibrosis. The bi-directional cross-talk between gut and lung (termed as Gut-Lung axis) is best exemplified by intestinal disturbances observed in lung diseases. Some of the existing probiotics show beneficial effects on lung health. A deeper understanding of the gut microbiome which comprises of all the genetic material within the gut microbiota and its role in respiratory disorders is likely to help in designing appropriate probiotic cocktails for therapeutic applications.
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Affiliation(s)
- Swadha Anand
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services Ltd., Pune, India
| | - Sharmila S Mande
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services Ltd., Pune, India
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136
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Xia X, Chen J, Xia J, Wang B, Liu H, Yang L, Wang Y, Ling Z. Role of probiotics in the treatment of minimal hepatic encephalopathy in patients with HBV-induced liver cirrhosis. J Int Med Res 2018; 46:3596-3604. [PMID: 29806520 PMCID: PMC6135989 DOI: 10.1177/0300060518776064] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/19/2018] [Indexed: 12/20/2022] Open
Abstract
Objective This study was performed to investigate the role of probiotics ( Clostridium butyricum combined with Bifidobacterium infantis) in the treatment of minimal hepatic encephalopathy (MHE) in patients with hepatitis B virus (HBV)-induced liver cirrhosis. Methods Sixty-seven consecutive patients with HBV-induced cirrhosis without overt hepatic encephalopathy were screened using the number connection test and digit symbol test. The patients were randomized to receive probiotics (n = 30) or no probiotics (n = 37) for 3 months. At the end of the trial, changes in cognition, intestinal microbiota, venous ammonia, and intestinal mucosal barriers were analyzed using recommended systems biology techniques. Results The patients' cognition was significantly improved after probiotic treatment. The predominant bacteria ( Clostridium cluster I and Bifidobacterium) were significantly enriched in the probiotics-treated group, while Enterococcus and Enterobacteriaceae were significantly decreased. Probiotic treatment was also associated with an obvious reduction in venous ammonia. Additionally, the parameters of the intestinal mucosal barrier were obviously improved after probiotic treatment, which might have contributed to the improved cognition and the decreased ammonia levels. Conclusion Treatment with probiotics containing C. butyricum and B. infantis represents a new adjuvant therapy for the management of MHE in patients with HBV-induced cirrhosis.
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Affiliation(s)
- Xiaoxue Xia
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Jiang Chen
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Jiayun Xia
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Bin Wang
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Hua Liu
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Ling Yang
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Ying Wang
- Department of Infectious Diseases, Changxing People’s Hospital,
Huzhou, Zhejiang, China
| | - Zongxin Ling
- Collaborative Innovation Center for Diagnosis and Treatment of
Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of
Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang
University, Hangzhou, Zhejiang, China
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137
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Jacobson A, Lam L, Rajendram M, Tamburini F, Honeycutt J, Pham T, Van Treuren W, Pruss K, Stabler SR, Lugo K, Bouley DM, Vilches-Moure JG, Smith M, Sonnenburg JL, Bhatt AS, Huang KC, Monack D. A Gut Commensal-Produced Metabolite Mediates Colonization Resistance to Salmonella Infection. Cell Host Microbe 2018; 24:296-307.e7. [PMID: 30057174 PMCID: PMC6223613 DOI: 10.1016/j.chom.2018.07.002] [Citation(s) in RCA: 301] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/10/2018] [Accepted: 07/05/2018] [Indexed: 02/06/2023]
Abstract
The intestinal microbiota provides colonization resistance against pathogens, limiting pathogen expansion and transmission. These microbiota-mediated mechanisms were previously identified by observing loss of colonization resistance after antibiotic treatment or dietary changes, which severely disrupt microbiota communities. We identify a microbiota-mediated mechanism of colonization resistance against Salmonella enterica serovar Typhimurium (S. Typhimurium) by comparing high-complexity commensal communities with different levels of colonization resistance. Using inbred mouse strains with different infection dynamics and S. Typhimurium intestinal burdens, we demonstrate that Bacteroides species mediate colonization resistance against S. Typhimurium by producing the short-chain fatty acid propionate. Propionate directly inhibits pathogen growth in vitro by disrupting intracellular pH homeostasis, and chemically increasing intestinal propionate levels protects mice from S. Typhimurium. In addition, administering susceptible mice Bacteroides, but not a propionate-production mutant, confers resistance to S. Typhimurium. This work provides mechanistic understanding into the role of individualized microbial communities in host-to-host variability of pathogen transmission.
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Affiliation(s)
- Amanda Jacobson
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Lilian Lam
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Manohary Rajendram
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Fiona Tamburini
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Jared Honeycutt
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Trung Pham
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Will Van Treuren
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Kali Pruss
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | | | - Kyler Lugo
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Donna M Bouley
- Department of Comparative Medicine, Stanford University, Stanford, CA 94305, USA
| | - Jose G Vilches-Moure
- Department of Comparative Medicine, Stanford University, Stanford, CA 94305, USA
| | - Mark Smith
- Department of CHEM-H, Stanford University, Stanford, CA 94305, USA
| | - Justin L Sonnenburg
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158 USA
| | - Ami S Bhatt
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Medicine, Stanford University, Stanford, CA 94305 USA
| | - Kerwyn Casey Huang
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA; Department of Bioengineering, Stanford University, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158 USA
| | - Denise Monack
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA.
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138
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Gill PA, van Zelm MC, Muir JG, Gibson PR. Review article: short chain fatty acids as potential therapeutic agents in human gastrointestinal and inflammatory disorders. Aliment Pharmacol Ther 2018; 48:15-34. [PMID: 29722430 DOI: 10.1111/apt.14689] [Citation(s) in RCA: 304] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/09/2018] [Accepted: 04/06/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Butyrate, propionate and acetate are short chain fatty acids (SCFA), important for maintaining a healthy colon and are considered as protective in colorectal carcinogenesis. However, they may also regulate immune responses and the composition of the intestinal microbiota. Consequently, their importance in a variety of chronic inflammatory diseases is emerging. AIMS To review the physiology and metabolism of SCFA in humans, cellular and molecular mechanisms by which SCFA may act in health and disease, and approaches for therapeutic delivery of SCFA. METHODS A PubMed literature search was conducted for clinical and pre-clinical studies using search terms: 'dietary fibre', short-chain fatty acids', 'acetate', 'propionate', 'butyrate', 'inflammation', 'immune', 'gastrointestinal', 'metabolism'. RESULTS A wide range of pre-clinical evidence supports roles for SCFA as modulators of not only colonic function, but also multiple inflammatory and metabolic processes. SCFA are implicated in many autoimmune, allergic and metabolic diseases. However, translating effects of SCFA from animal studies to human disease is limited by physiological and dietary differences and by the challenge of delivering sufficient amounts of SCFA to the target sites that include the colon and the systemic circulation. Development of novel targeted approaches for colonic delivery, combined with postbiotic supplementation, may represent desirable strategies to achieve adequate targeted SCFA delivery. CONCLUSIONS There is a large array of potential disease-modulating effects of SCFA. Adequate targeted delivery to the sites of action is the main limitation of such application. The ongoing development and evaluation of novel delivery techniques offer potential for translating promise to therapeutic benefit.
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Affiliation(s)
- P A Gill
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, Vic., Australia.,Department of Immunology and Pathology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, Vic, Australia
| | - M C van Zelm
- Department of Immunology and Pathology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, Vic, Australia
| | - J G Muir
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, Vic., Australia
| | - P R Gibson
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, Vic., Australia
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139
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Chen D, Chen G, Wan P, Hu B, Chen L, Ou S, Zeng X, Ye H. Digestion under saliva, simulated gastric and small intestinal conditions and fermentation in vitro of polysaccharides from the flowers of Camellia sinensis induced by human gut microbiota. Food Funct 2018; 8:4619-4629. [PMID: 29143827 DOI: 10.1039/c7fo01024a] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the present study, digestion under saliva, simulated gastric and small intestinal conditions and fermentation in vitro of polysaccharides from the flowers of Camellia sinensis (TFPS) by human gut microbiota were investigated. The results indicated that human saliva and simulated gastric and intestinal juices had no effect on TFPS, while TFPS could be utilized by human fecal microbiota, which was proved from the decreased molecular weight and lower content of total or reducing sugars after fermentation under anaerobic conditions. It was found that pH in the fermentation system decreased, and the production of short-chain fatty acids was significantly enhanced. Furthermore, in vitro fermentation of TFPS altered the composition of gut microbiota, specifically in elevating the ratio of Bacteroidetes to Firmicutes and enriching Prevotella. The present results suggest that TFPS has the potential to be developed as functional foods to modify gut microbiota.
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Affiliation(s)
- Dan Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
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140
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Nath A, Haktanirlar G, Varga Á, Molnár MA, Albert K, Galambos I, Koris A, Vatai G. Biological Activities of Lactose-Derived Prebiotics and Symbiotic with Probiotics on Gastrointestinal System. ACTA ACUST UNITED AC 2018; 54:medicina54020018. [PMID: 30344249 PMCID: PMC6037253 DOI: 10.3390/medicina54020018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/23/2018] [Accepted: 04/04/2018] [Indexed: 02/07/2023]
Abstract
Lactose-derived prebiotics provide wide ranges of gastrointestinal comforts. In this review article, the probable biochemical mechanisms through which lactose-derived prebiotics offer positive gastrointestinal health are reported along with the up-to-date results of clinical investigations; this might be the first review article of its kind, to the best of our knowledge. Lactose-derived prebiotics have unique biological and functional values, and they are confirmed as ‘safe’ by the Food and Drug Administration federal agency. Medical practitioners frequently recommend them as therapeutics as a pure form or combined with dairy-based products (yoghurt, milk and infant formulas) or fruit juices. The biological activities of lactose-derived prebiotics are expressed in the presence of gut microflora, mainly probiotics (Lactobacillus spp. in the small intestine and Bifidobacterium spp. in the large intestine). Clinical investigations reveal that galacto-oligosaccharide reduces the risks of several types of diarrhea (traveler’s diarrhea, osmotic diarrhea and Clostridium difficile associated relapsing diarrhea). Lactulose and lactosucrose prevent inflammatory bowel diseases (Crohn’s disease and ulcerative colitis). Lactulose and lactitol reduce the risk of hepatic encephalopathy. Furthermore, lactulose, galacto-oligosaccharide and lactitol prevent constipation in individuals of all ages. It is expected that the present review article will receive great attention from medical practitioners and food technologists.
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Affiliation(s)
- Arijit Nath
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Zrínyi M. u. 18, H-8800 Nagykanizsa, Hungary.
| | - Gokce Haktanirlar
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Áron Varga
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Máté András Molnár
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Krisztina Albert
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Ildikó Galambos
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Zrínyi M. u. 18, H-8800 Nagykanizsa, Hungary.
| | - András Koris
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Gyula Vatai
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
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141
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Damman JL, Rodriguez EA, Ali AH, Buness CW, Cox KL, Carey EJ, Lindor KD. Review article: the evidence that vancomycin is a therapeutic option for primary sclerosing cholangitis. Aliment Pharmacol Ther 2018; 47:886-895. [PMID: 29411404 DOI: 10.1111/apt.14540] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 11/06/2017] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS PSC is an autoimmune biliary inflammatory disorder that is often associated with inflammatory bowel disease (IBD), with 50%-75% of patients with PSC having coexisting IBD, most commonly ulcerative colitis. Currently, no medical therapies have been shown to improve the disease course or slow its progression. However, ongoing research has resulted in a growing interest in the use of antibiotics for treatment of PSC, of which vancomycin is the most studied. In this review, we summarise the current evidence on the use of vancomycin in PSC and comment on future research areas of interest. METHODS A comprehensive PUBMED and EMBASE literature search for articles on vancomycin, PSC, therapeutic options and microbiome was performed. RESULTS Two randomised clinical trials, three case series and two case reports were included in the study. These include uncontrolled data from at least 98 patients that include promising improvements in biochemistry and imaging. Optimal dosing regimens are unclear. CONCLUSION Vancomycin is one of the most studied antibiotics used in the treatment of PSC with promising results. There is not currently sufficient evidence to support treatment recommendations. Further research is needed to establish if vancomycin is a PSC treatment.
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Affiliation(s)
- J L Damman
- Pediatrics/Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
| | - E A Rodriguez
- Gastroenterology and Hepatology, Mayo Clinic, Arizona, USA
| | - A H Ali
- Hepatology, Mayo Clinic, Arizona, USA
| | - C W Buness
- National Patient Advocate Foundation, Paradise Valley, AZ, USA
| | - K L Cox
- Pediatric Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
| | - E J Carey
- Gastroenterology and Hepatology, Mayo Clinic, Arizona, USA
| | - K D Lindor
- Gastroenterology and Hepatology, Arizona State University and Mayo Clinic, Arizona, USA
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142
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Opazo MC, Ortega-Rocha EM, Coronado-Arrázola I, Bonifaz LC, Boudin H, Neunlist M, Bueno SM, Kalergis AM, Riedel CA. Intestinal Microbiota Influences Non-intestinal Related Autoimmune Diseases. Front Microbiol 2018; 9:432. [PMID: 29593681 PMCID: PMC5857604 DOI: 10.3389/fmicb.2018.00432] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 02/26/2018] [Indexed: 12/16/2022] Open
Abstract
The human body is colonized by millions of microorganisms named microbiota that interact with our tissues in a cooperative and non-pathogenic manner. These microorganisms are present in the skin, gut, nasal, oral cavities, and genital tract. In fact, it has been described that the microbiota contributes to balancing the immune system to maintain host homeostasis. The gut is a vital organ where microbiota can influence and determine the function of cells of the immune system and contributes to preserve the wellbeing of the individual. Several articles have emphasized the connection between intestinal autoimmune diseases, such as Crohn's disease with dysbiosis or an imbalance in the microbiota composition in the gut. However, little is known about the role of the microbiota in autoimmune pathologies affecting other tissues than the intestine. This article focuses on what is known about the role that gut microbiota can play in the pathogenesis of non-intestinal autoimmune diseases, such as Grave's diseases, multiple sclerosis, type-1 diabetes, systemic lupus erythematosus, psoriasis, schizophrenia, and autism spectrum disorders. Furthermore, we discuss as to how metabolites derived from bacteria could be used as potential therapies for non-intestinal autoimmune diseases.
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Affiliation(s)
- Maria C Opazo
- Laboratorio de Biología Celular y Farmacología, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Universidad Andres Bello, Santiago, Chile.,Facultad de Medicina, Millennium Institute on Immunology and Immunotherapy, Universidad Andres Bello, Santiago, Chile
| | - Elizabeth M Ortega-Rocha
- Laboratorio de Inmunobiología, Facultad de Medicina, Departamento de Biología Celular y Tisular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Irenice Coronado-Arrázola
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Laura C Bonifaz
- Unidad de Investigación Médica en Inmunoquímica Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Helene Boudin
- Institut National de la Santé et de la Recherche Médicale U1235, Institut des Maladies de l'Appareil Digestif, Université de Nantes, Nantes, France
| | - Michel Neunlist
- Institut National de la Santé et de la Recherche Médicale U1235, Institut des Maladies de l'Appareil Digestif, Université de Nantes, Nantes, France
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad, Metropolitana, Chile
| | - Claudia A Riedel
- Laboratorio de Biología Celular y Farmacología, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Universidad Andres Bello, Santiago, Chile.,Facultad de Medicina, Millennium Institute on Immunology and Immunotherapy, Universidad Andres Bello, Santiago, Chile
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143
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Hutabarat DJC, Zakaria FR, Purwani EY, Suhartono MT. SCFA Profile of Rice RS Fermentation by Colonic Microbiota, <i>Clostridium butyricum</i> BCC B2571, and <i>Eubacterium rectale</i> DSM 17629. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/abb.2018.92008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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144
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Li Z, Wang W, Liu D, Guo Y. Effects of Lactobacillus acidophilus on gut microbiota composition in broilers challenged with Clostridium perfringens. PLoS One 2017; 12:e0188634. [PMID: 29190649 PMCID: PMC5708699 DOI: 10.1371/journal.pone.0188634] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/11/2017] [Indexed: 12/14/2022] Open
Abstract
This study shows the effects of dietary supplementation with Lactobacillus acidophilus on the gut microbiota of broiler chickens challenged with Clostridium perfringens infection during a 21-day period according to pyrosequencing of the 16S ribosomal RNA gene. In a 2 × 2 factorial arrangement of treatments, 308 1-day-old male Arbor Acres broiler chicks were analyzed for the effects of the probiotic (groups without or with L. acidophilus supplementation), pathogen challenge (groups without or with C. perfringens), and the effects of interaction. The infection decreased the number of Observed species, Chao1, and ACE of ileal microbiota and increased Chao1 of cecal microbiota of broilers, whereas L. acidophilus supplementation decreased the Shannon index of the ileal microbiota. Shannon index and Simpson indices were lower in the ileal microbiota than in the cecal microbiota. In the ileal microbiota, the control group had higher relative abundance of Lachnospiraceae and Ruminococcaceae in comparison with the other groups; however, the relative abundance of Gammaproteobacteria was significantly higher in the challenge group than in the other groups. C. perfringens infection tended to increase lactate concentration and decreasedconcentrations of formate, acetate and propionate in the ileum; decreased isobutyrate concentration; and tended to decrease isovalerate concentration in the cecum. Besides, L. acidophilus supplementation increased the concentration of lactate and butyrate and decreased concentrations of formate and propionate in the ileum, and increased concentrations of lactate and valerate in the cecum. In conclusion, C. perfringens infection and/or dietary supplementation with L. acidophilus modulated the relative abundance of some bacteria taxa, and the L. acidophilus supplementation helped to restore the microbial community disrupted by C. perfringens infection.
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Affiliation(s)
- Zhui Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Weiwei Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Dan Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
- * E-mail:
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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145
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Leccioli V, Oliveri M, Romeo M, Berretta M, Rossi P. A New Proposal for the Pathogenic Mechanism of Non-Coeliac/Non-Allergic Gluten/Wheat Sensitivity: Piecing Together the Puzzle of Recent Scientific Evidence. Nutrients 2017; 9:nu9111203. [PMID: 29099090 PMCID: PMC5707675 DOI: 10.3390/nu9111203] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/27/2017] [Accepted: 10/31/2017] [Indexed: 12/12/2022] Open
Abstract
Non-coeliac/non-allergic gluten/wheat sensitivity (NCG/WS) is a gluten-related disorder, the pathogenesis of which remains unclear. Recently, the involvement of an increased intestinal permeability has been recognized in the onset of this clinical condition. However, mechanisms through which it takes place are still unclear. In this review, we attempt to uncover these mechanisms by providing, for the first time, an integrated vision of recent scientific literature, resulting in a new hypothesis about the pathogenic mechanisms involved in NCG/WS. According to this, the root cause of NCG/WS is a particular dysbiotic profile characterized by decreased butyrate-producing-Firmicutes and/or Bifidobacteria, leading to low levels of intestinal butyrate. Beyond a critical threshold of the latter, a chain reaction of events and vicious circles occurs, involving other protagonists such as microbial lipopolysaccharide (LPS), intestinal alkaline phosphatase (IAP) and wheat α-amylase trypsin inhibitors (ATIs). NCG/WS is likely to be a multi-factor-onset disorder, probably transient and preventable, related to quality and balance of the diet, and not to the presence of gluten in itself. If future studies confirm our proposal, this would have important implications both for the definition of the disease, as well as for the prevention and therapeutic-nutritional management of individuals with NCG/WS.
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Affiliation(s)
- Valentina Leccioli
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, via Ferrata 1, 27100 Pavia, Italy.
| | - Mara Oliveri
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, via Ferrata 1, 27100 Pavia, Italy.
| | - Marcello Romeo
- C.E.R.H.M. Center for Experimental Research for Human Microbiome Ludes H.E.I., Pietro Stiges Palace, Strait Street, 1436 Valletta, Malta.
| | - Massimiliano Berretta
- Department of Medical Oncology, CRO-Aviano, National Cancer Institute, Via Franco Gallini 2, 33081 Aviano, Italy.
| | - Paola Rossi
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, via Ferrata 1, 27100 Pavia, Italy.
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146
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Monk JM, Lepp D, Wu W, Graf D, McGillis LH, Hussain A, Carey C, Robinson LE, Liu R, Tsao R, Brummer Y, Tosh SM, Power KA. Chickpea-supplemented diet alters the gut microbiome and enhances gut barrier integrity in C57Bl/6 male mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.02.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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147
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Gong L, Cao W, Chi H, Wang J, Zhang H, Liu J, Sun B. Whole cereal grains and potential health effects: Involvement of the gut microbiota. Food Res Int 2017; 103:84-102. [PMID: 29389647 DOI: 10.1016/j.foodres.2017.10.025] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/11/2017] [Accepted: 10/12/2017] [Indexed: 12/13/2022]
Abstract
The intakes of whole cereal grains (WCGs) have long been linked to decreased risks of metabolic syndromes (MetS) and several chronic diseases. Owing to the complex range of components of cereals, which may show synergistic activities to mediate these protective effects, the mechanisms by which the benefits of whole cereals arise are not fully understood. The gut microbiota has recently become a new focus of research at the intersection of diet and metabolic health. Moreover, cereals contain various ingredients known as microbiota-accessible substrates that resist digestion in the upper gastrointestinal tract, including resistant starch and non-starch polysaccharides such as β-glucan and arabinoxylans, making them an important fuel for the microbiota. Thus, WCGs may manipulate the ecophysiology of gut microbiota. In this review, the scientific evidence supporting the hypothesis that WCGs prevent MetS by modulating gut microbiota composition and functions are discussed, with focuses on cereal intake-related mechanisms by which gut microbiota contributes to human health and scientific evidences for the effects of WCGs on modulating gut microbiota. Once strong support for the association among WCGs, gut microbiota and host metabolic health can be demonstrated, particular cereals, their processing technologies, or cereal-based foods might be better utilized to prevent and possibly even treat metabolic disease.
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Affiliation(s)
- Lingxiao Gong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Wenyan Cao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Hailin Chi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China.
| | - Huijuan Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Jie Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
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148
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Ilinskaya ON, Ulyanova VV, Yarullina DR, Gataullin IG. Secretome of Intestinal Bacilli: A Natural Guard against Pathologies. Front Microbiol 2017; 8:1666. [PMID: 28919884 PMCID: PMC5586196 DOI: 10.3389/fmicb.2017.01666] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/17/2017] [Indexed: 12/12/2022] Open
Abstract
Current studies of human gut microbiome usually do not consider the special functional role of transient microbiota, although some of its members remain in the host for a long time and produce broad spectrum of biologically active substances. Getting into the gastrointestinal tract (GIT) with food, water and probiotic preparations, two representatives of Bacilli class, genera Bacillus and Lactobacillus, colonize epithelium blurring the boundaries between resident and transient microbiota. Despite their minor proportion in the microbiome composition, these bacteria can significantly affect both the intestinal microbiota and the entire body thanks to a wide range of secreted compounds. Recently, insufficiency and limitations of pure genome-based analysis of gut microbiota became known. Thus, the need for intense functional studies is evident. This review aims to characterize the Bacillus and Lactobacillus in GIT, as well as the functional roles of the components released by these members of microbial intestinal community. Complex of their secreted compounds is referred by us as the "bacillary secretome." The composition of the bacillary secretome, its biological effects in GIT and role in counteraction to infectious diseases and oncological pathologies in human organism is the subject of the review.
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Affiliation(s)
| | - Vera V. Ulyanova
- Department of Microbiology, Kazan Federal UniversityKazan, Russia
| | | | - Ilgiz G. Gataullin
- Department of Surgery and Oncology, Regional Clinical Cancer CenterKazan, Russia
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149
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Benítez-Páez A, Gómez Del Pulgar EM, Sanz Y. The Glycolytic Versatility of Bacteroides uniformis CECT 7771 and Its Genome Response to Oligo and Polysaccharides. Front Cell Infect Microbiol 2017; 7:383. [PMID: 28971068 PMCID: PMC5609589 DOI: 10.3389/fcimb.2017.00383] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/11/2017] [Indexed: 12/13/2022] Open
Abstract
Bacteroides spp. are dominant components of the phylum Bacteroidetes in the gut microbiota and prosper in glycan enriched environments. However, knowledge of the machinery of specific species isolated from humans (like Bacteroides uniformis) contributing to the utilization of dietary and endogenous sources of glycans and their byproducts is limited. We have used the cutting-edge nanopore-based technology to sequence the genome of B. uniformis CECT 7771, a human symbiont with a proven pre-clinical efficacy on metabolic and immune dysfunctions in obesity animal models. We have also used massive sequencing approaches to distinguish the genome expression patterns in response to carbon sources of different complexity during growth. At genome-wide level, our analyses globally demonstrate that B. uniformis strains exhibit an expanded glycolytic capability when compared with other Bacteroides species. Moreover, by studying the growth and whole-genome expression of B. uniformis CECT 7771 in response to different carbon sources, we detected a differential growth fitness and expression patterns across the genome depending on the carbon source of the culture media. The dietary fibers used exerted different effects on B. uniformis CECT 7771 activating different molecular pathways and, therefore, allowing the production of different metabolite types with potential impact on gut health. The genome and transcriptome analysis of B. uniformis CECT 7771, in response to different carbon sources, shows its high versatility to utilize both dietary and endogenous glycans along with the production of potentially beneficial end products for both the bacterium and the host, pointing to a mechanistic basis of a mutualistic relationship.
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Affiliation(s)
- Alfonso Benítez-Páez
- Microbial Ecology, Nutrition & Health Research Unit, Institute of Agrochemistry and Food Technology (Instituto de Agroquimica y Tecnologia de Alimentos-Consejo Superior de Investigaciones Científicas)Valencia, Spain
| | - Eva M Gómez Del Pulgar
- Microbial Ecology, Nutrition & Health Research Unit, Institute of Agrochemistry and Food Technology (Instituto de Agroquimica y Tecnologia de Alimentos-Consejo Superior de Investigaciones Científicas)Valencia, Spain
| | - Yolanda Sanz
- Microbial Ecology, Nutrition & Health Research Unit, Institute of Agrochemistry and Food Technology (Instituto de Agroquimica y Tecnologia de Alimentos-Consejo Superior de Investigaciones Científicas)Valencia, Spain
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150
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Galloway-Peña J, Brumlow C, Shelburne S. Impact of the Microbiota on Bacterial Infections during Cancer Treatment. Trends Microbiol 2017; 25:992-1004. [PMID: 28728967 DOI: 10.1016/j.tim.2017.06.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/06/2017] [Accepted: 06/15/2017] [Indexed: 02/08/2023]
Abstract
Patients being treated for cancer are at high risk for infectious complications, generally due to colonizing organisms that gain access to sterile sites via disrupted epithelial barriers. There is an emerging understanding that the ability of bacterial pathogens, including multidrug-resistant organisms, to colonize and subsequently infect humans is largely dependent on protective bacterial species present in the microbiome. Thus, herein we review recent studies demonstrating strong correlations between the microbiome of the oncology patient and infections occurring during chemotherapy. An increased knowledge of the interplay between potential pathogens, protective commensals, and the host immune system may facilitate the development of novel biomarkers or therapeutics that could help ameliorate the toll that infections take during the treatment of cancer.
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Affiliation(s)
- Jessica Galloway-Peña
- The Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chelcy Brumlow
- The Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Samuel Shelburne
- The Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; The Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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