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Katsoudas N, Tavakoli P, Wu N, Shapiro A, Leach ST, Williams AJ, Paramsothy R, Ghaly S, Connor SJ, Samocha-Bonet D, Lambert K, Hold GL. Dietary Emulsifier Exposure in People With Inflammatory Bowel Disease Compared With Healthy Controls: Is There a Cause for Concern? Inflamm Bowel Dis 2024; 30:1241-1250. [PMID: 38244236 DOI: 10.1093/ibd/izad318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Emulsifiers are implicated in the pathogenesis of inflammatory bowel disease (IBD). Few studies have examined emulsifier intake in people with existing IBD. We aimed to describe the frequency of exposure to 6 selected emulsifiers in a contemporary cohort of people with IBD and compare intake with healthy controls (HCs). METHODS Baseline food records from participants in an Australian prospective cohort study examining the microbiome of IBD patients and HCs were analyzed. Exposure to inflammatory emulsifiers polysorbate-80 (P80); carboxymethylcellulose (CMC); carrageenan; xanthan gum (XG); lecithin (soy and sunflower) and mono- and diglycerides of fatty acids (MDGs) were determined by examining ingredient lists. Frequency of emulsifier exposure between groups (IBD vs HC, Crohn's disease [CD] vs ulcerative colitis [UC], IBD children vs adults, active disease vs remission) was examined after controlling for confounders. RESULTS Records from 367 participants were analyzed (n = 176 IBD, of which there were 101 CD, 75 UC, and 191 HC patients). In total, 5022 unique food items were examined, with 18% containing 1 or more emulsifier of interest. Inflammatory bowel disease participants had significantly higher total daily emulsifier exposure compared with HCs (2.7 ± 1.8 vs 2.3 ± 1.6, P = .02). In IBD participants, emulsifiers with the highest daily exposure were MDGs (1.2 ± 0.93), lecithin (0.85 ± 0.93), and XG (0.38 ± 0.42). There were no recorded exposures to P80. CONCLUSIONS Inflammatory bowel disease participants were exposed to more emulsifiers than HCs. Intake of inflammatory emulsifiers were low or nonexistent, suggesting their presence in the food supply are not as common as frequently stated.
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Affiliation(s)
- Natasha Katsoudas
- School of Medical, Indigenous and Health Science, University of Wollongong, New South Wales, Australia
| | - Paris Tavakoli
- Microbiome Research Centre, University of New South Wales, Kogarah, New South Wales, Australia
- St Vincent's Hospital, Department of Gastroenterology and Hepatology, Sydney, New South Wales, Australia
| | - Nan Wu
- Microbiome Research Centre, University of New South Wales, Kogarah, New South Wales, Australia
| | - Amanda Shapiro
- Department of Paediatrics, School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Steven T Leach
- Department of Paediatrics, School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Astrid-Jane Williams
- Liverpool Hospital Dept of Gastroenterology and Hepatology, Liverpool, New South Wales, Australia
- Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- South West Sydney Clinical Campuses, University of New South Wales Medicine & Health, University of New South Wales, Sydney, Australia
| | - Ramesh Paramsothy
- Centre for Gastrointestinal Health Castle Hill, New South Wales, Australia
| | - Simon Ghaly
- St Vincent's Hospital, Department of Gastroenterology and Hepatology, Sydney, New South Wales, Australia
| | - Susan J Connor
- Liverpool Hospital Dept of Gastroenterology and Hepatology, Liverpool, New South Wales, Australia
- Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- South West Sydney Clinical Campuses, University of New South Wales Medicine & Health, University of New South Wales, Sydney, Australia
| | - Dorit Samocha-Bonet
- Garvan Institute of Medical Research and School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, University of New South Wales Medicine & Health, University of New South Wales, Sydney, Australia
| | - Kelly Lambert
- School of Medical, Indigenous and Health Science, University of Wollongong, New South Wales, Australia
| | - Georgina L Hold
- Microbiome Research Centre, University of New South Wales, Kogarah, New South Wales, Australia
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Ayuso P, Quizhpe J, Yepes F, Miranzo D, Avellaneda A, Nieto G, Ros G. Improving the Nutritional Quality of Protein and Microbiota Effects in Additive- and Allergen-Free Cooked Meat Products. Foods 2024; 13:1792. [PMID: 38928734 PMCID: PMC11202710 DOI: 10.3390/foods13121792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/19/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
The primary objective of the meat industry is to enhance the quality and positive attributes of meat products, driven by an increasing consumer demand for healthier, less processed options. One common approach to achieving this goal is the replacement of additives and allergens with natural ingredients. Nevertheless, the nutritional impact of these changes has not been extensively studied. To address these gaps, two new meat products were developed: cooked turkey breast and cooked ham. The products in question exclude additives and allergens and instead incorporate a blend of natural extracts containing vitamin C, chlorogenic acids, hydroxytyrosol, catechins, epicatechins, vinegar, and inulin fibre. The objective of this study was to evaluate the impact of these reformulations on protein quality and gut microbiota. Protein quality was evaluated using the Digestible Indispensable Amino Acid Score (DIAAS) following in vitro digestion. The microbial composition and short-chain fatty acid (SCFA) production were analysed through in vitro colonic fermentations in both normal-weight and obese participants in order to gauge their effect on gut microbiota. The results demonstrated that the reformulation of cooked turkey breast increased its digestibility by 6.4%, while that of cooked ham exhibited a significant 17.9% improvement. Furthermore, protein quality was found to have improved significantly, by 19.5% for cooked turkey breast and 32.9% for cooked ham. Notwithstanding these alterations in protein digestibility, the microbial composition at the phylum and genus levels remained largely unaltered. Nevertheless, total SCFA production was observed to increase in both groups, with a more pronounced effect observed in the normal-weight group. In conclusion, the substitution of artificial additives with natural ingredients in reformulated cooked meat products has resulted in enhanced digestibility, improved protein quality, and increased production of short-chain fatty acids.
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Affiliation(s)
- Pablo Ayuso
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Espinardo, 30100 Murcia, Spain; (P.A.); (J.Q.); (G.N.)
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
| | - Jhazmin Quizhpe
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Espinardo, 30100 Murcia, Spain; (P.A.); (J.Q.); (G.N.)
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
| | - Fani Yepes
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
| | - Domingo Miranzo
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
| | - Antonio Avellaneda
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
| | - Gema Nieto
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Espinardo, 30100 Murcia, Spain; (P.A.); (J.Q.); (G.N.)
| | - Gaspar Ros
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Espinardo, 30100 Murcia, Spain; (P.A.); (J.Q.); (G.N.)
- Cátedra de Seguridad y Sostenibilidad Alimentaria Grupo Fuertes, Universidad de Murcia, 30003 Murcia, Spain (A.A.)
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Kimilu N, Gładyś-Cieszyńska K, Pieszko M, Mańkowska-Wierzbicka D, Folwarski M. Carrageenan in the Diet: Friend or Foe for Inflammatory Bowel Disease? Nutrients 2024; 16:1780. [PMID: 38892712 PMCID: PMC11174395 DOI: 10.3390/nu16111780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
While the exact pathogenesis of IBD remains unclear, genetic, environmental and nutritional factors as well as the composition of the gut microbiome play crucial roles. Food additives, which are increasingly consumed in the Western diet, are being investigated for their potential effects on IBD. These additives can affect gut health by altering the composition of the microbiota, immune responses, and intestinal permeability, contributing to autoimmune diseases and inflammation. Despite the growing number of studies on food additives and IBD, the specific effects of carrageenan have not yet been sufficiently researched. This review addresses this gap by critically analyzing recent studies on the effects of carrageenan on the gut microbiota, intestinal permeability, and inflammatory processes. We searched the MEDLINE and SCOPUS databases using the following terms: carrageenan, carrageenan and inflammatory bowel disease, carrageenan and cancer, food additives and microbiome, food additives and intestinal permeability, and food additives and autoimmune diseases. In animal studies, degraded carrageenan has been shown to trigger intestinal ulceration and inflammation, highlighting its potential risk for exacerbating IBD. It can affect the gut microbiota, reduce bacterial diversity, and increase intestinal permeability, contributing to "leaky gut" syndrome. Some studies suggest that carrageenan may inhibit the growth of cancer cells by influencing the progression of the cell cycle, but the anti-cancer effect is still unclear. Carrageenan may also increase glucose intolerance and insulin resistance. Further research is needed to determine whether carrageenan should be excluded from the diet of individuals with IBD.
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Affiliation(s)
- Nina Kimilu
- Students’ Scientific Circle of Clinical Nutrition, Medical University of Gdansk, 80-211 Gdansk, Poland
| | | | - Magdalena Pieszko
- Department of Clinical Nutrition and Dietetics, Medical University of Gdansk, 80-210 Gdansk, Poland (M.P.)
| | - Dorota Mańkowska-Wierzbicka
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Marcin Folwarski
- Department of Clinical Nutrition and Dietetics, Medical University of Gdansk, 80-210 Gdansk, Poland (M.P.)
- Home Enteral and Parenteral Nutrition Unit, Nicolaus Copernicus Hospital, 80-803 Gdansk, Poland
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Salame C, Javaux G, Sellem L, Viennois E, de Edelenyi FS, Agaësse C, De Sa A, Huybrechts I, Pierre F, Coumoul X, Julia C, Kesse-Guyot E, Allès B, Fezeu LK, Hercberg S, Deschasaux-Tanguy M, Cosson E, Tatulashvili S, Chassaing B, Srour B, Touvier M. Food additive emulsifiers and the risk of type 2 diabetes: analysis of data from the NutriNet-Santé prospective cohort study. Lancet Diabetes Endocrinol 2024; 12:339-349. [PMID: 38663950 DOI: 10.1016/s2213-8587(24)00086-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Experimental studies have suggested potential detrimental effects of emulsifiers on gut microbiota, inflammation, and metabolic perturbations. We aimed to investigate the associations between exposures to food additive emulsifiers and the risk of type 2 diabetes in a large prospective cohort of French adults. METHODS We analysed data from 104 139 adults enrolled in the French NutriNet-Santé prospective cohort study from May 1, 2009, to April 26, 2023; 82 456 (79·2%) were female and the mean age was 42·7 years (SD 14·5). Dietary intakes were assessed with three 24 h dietary records collected over three non-consecutive days, every 6 months. Exposure to additive emulsifiers was evaluated through multiple food composition databases and ad-hoc laboratory assays. Associations between cumulative time-dependent exposures to food additive emulsifiers and the risk of type 2 diabetes were characterised with multivariable proportional hazards Cox models adjusted for known risk factors. The NutriNet-Santé study is registered at ClinicalTrials.gov (NCT03335644). FINDINGS Of 104 139 participants, 1056 were diagnosed with type 2 diabetes during follow-up (mean follow-up duration 6·8 years [SD 3·7]). Intakes of the following emulsifiers were associated with an increased risk of type 2 diabetes: total carrageenans (hazard ratio [HR] 1·03 [95% CI 1·01-1·05] per increment of 100 mg per day, p<0·0001), carrageenans gum (E407; HR 1·03 [1·01-1·05] per increment of 100 mg per day, p<0·0001), tripotassium phosphate (E340; HR 1·15 [1·02-1·31] per increment of 500 mg per day, p=0·023), acetyl tartaric acid esters of monoglycerides and diglycerides of fatty acids (E472e; HR 1·04 [1·00-1·08] per increment of 100 mg per day, p=0·042), sodium citrate (E331; HR 1·04 [1·01-1·07] per increment of 500 mg per day, p=0·0080), guar gum (E412; HR 1·11 [1·06-1·17] per increment of 500 mg per day, p<0·0001), gum arabic (E414; HR 1·03 [1·01-1·05] per increment of 1000 mg per day, p=0·013), and xanthan gum (E415, HR 1·08 [1·02-1·14] per increment of 500 mg per day, p=0·013). INTERPRETATION We found direct associations between the risk of type 2 diabetes and exposures to various food additive emulsifiers widely used in industrial foods, in a large prospective cohort of French adults. Further research is needed to prompt re-evaluation of regulations governing the use of additive emulsifiers in the food industry for better consumer protection. FUNDING European Research Council, French National Cancer Institute, French Ministry of Health, IdEx Université de Paris, and Bettencourt-Schueller Foundation.
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Affiliation(s)
- Clara Salame
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Guillaume Javaux
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Laury Sellem
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France
| | - Emilie Viennois
- INSERM U1149, Center of Research on Inflammation, Université de Paris, 75018 Paris, France
| | - Fabien Szabo de Edelenyi
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Cédric Agaësse
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Alexandre De Sa
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Inge Huybrechts
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Fabrice Pierre
- NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France; Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Xavier Coumoul
- NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France; INSERM UMR-S 1124, Université de Paris, Paris, France
| | - Chantal Julia
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; Public Health Department, Groupe Hospitalier Paris-Seine-Saint-Denis, Assistance Publique-hôpitaux de Paris (AP-HP), Bobigny, France
| | - Emmanuelle Kesse-Guyot
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France
| | - Benjamin Allès
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Léopold K Fezeu
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France
| | - Serge Hercberg
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France; Public Health Department, Groupe Hospitalier Paris-Seine-Saint-Denis, Assistance Publique-hôpitaux de Paris (AP-HP), Bobigny, France
| | - Mélanie Deschasaux-Tanguy
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France
| | - Emmanuel Cosson
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; Diabetology, endocrinology and nutrition Department, Avicenne Hospital, AP-HP, Bobigny, France
| | - Sopio Tatulashvili
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; Diabetology, endocrinology and nutrition Department, Avicenne Hospital, AP-HP, Bobigny, France
| | - Benoit Chassaing
- NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France; INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université de Paris, Paris, France
| | - Bernard Srour
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France.
| | - Mathilde Touvier
- Université Sorbonne Paris Nord and Université Paris Cité, INSERM, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), F-93017 Bobigny, France; NACRe French Network for Nutrition And Cancer Research, Jouy-en-Josas, France
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Komisarska P, Pinyosinwat A, Saleem M, Szczuko M. Carrageenan as a Potential Factor of Inflammatory Bowel Diseases. Nutrients 2024; 16:1367. [PMID: 38732613 PMCID: PMC11085445 DOI: 10.3390/nu16091367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Carrageenan is a widely used food additive and is seen as a potential candidate in the pharmaceutical industry. However, there are two faces to carrageenan that allows it to be used positively for therapeutic purposes. Carrageenan can be used to create edible films and for encapsulating drugs, and there is also interest in the use of carrageenan for food printing. Carrageenan is a naturally occurring polysaccharide gum. Depending on the type of carrageenan, it is used in regulating the composition of intestinal microflora, including the increase in the population of Bifidobacterium bacteria. On the other hand, the studies have demonstrated the harmfulness of carrageenan in animal and human models, indicating a direct link between diet and intestinal inflammatory states. Carrageenan changes the intestinal microflora, especially Akkermansia muciniphilia, degrades the mucous barrier and breaks down the mucous barrier, causing an inflammatory reaction. It directly affects epithelial cells by activating the pro-inflammatory nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) pathway. The mechanism is based on activation of the TLR4 receptor, alterations in macrophage activity, production of proinflammatory cytokines and activation of innate immune pathways. Carrageenan increases the content of Bacteroidetes bacteria, also causing a reduction in the number of short chain fatty acid (SCFA)-producing bacteria. The result is damage to the integrity of the intestinal membrane and reduction of the mucin layer. The group most exposed to the harmful effects of carrageenan are people suffering from intestinal inflammation, including Crohn disease (CD) and ulcerative colitis (UC).
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Affiliation(s)
| | | | | | - Małgorzata Szczuko
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University, 71-460 Szczecin, Poland (M.S.)
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Li J, Wang X, Wang Q, Hu Y, Wang S, Xu J, Ye J. Galectin from Trichinella spiralis alleviates DSS-induced colitis in mice by regulating the intestinal microbiota. Vet Res 2024; 55:3. [PMID: 38172977 PMCID: PMC10763409 DOI: 10.1186/s13567-023-01262-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
According to numerous reports, Trichinella spiralis (T. spiralis) and its antigens can reduce intestinal inflammation by modulating regulatory immunological responses in the host to maintain immune homeostasis. Galectin has been identified as a protein that is produced by T. spiralis, and its characterization revealed this protein has possible immune regulatory activity. However, whether recombinant T. spiralis galectin (rTs-gal) can cure dextran sulfate sodium (DSS)-induced colitis remains unknown. Here, the ability of rTs-gal to ameliorate experimental colitis in mice with inflammatory bowel disease (IBD) as well as the potential underlying mechanism were investigated. The disease activity index (DAI), colon shortening, inflammatory cell infiltration, and histological damage were used as indicators to monitor clinical symptoms of colitis. The results revealed that the administration of rTs-gal ameliorated these symptoms. According to Western blotting and ELISA results, rTs-gal may suppress the excessive inflammatory response-mediated induction of TLR4, MyD88, and NF-κB expression in the colon. Mice with colitis exhibit disruptions in the gut flora, including an increase in gram-negative bacteria, which in turn can result in increased lipopolysaccharide (LPS) production. However, injection of rTs-gal may inhibit changes in the gut microbiota, for example, by reducing the prevalence of Helicobacter and Bacteroides, which produce LPS. The findings of the present study revealed that rTs-gal may inhibit signalling pathways that involve enteric bacteria-derived LPS, TLR4, and NF-κB in mice with DSS-induced colitis and attenuate DSS-induced colitis in animals by modulating the gut microbiota. These findings shed additional light on the immunological processes underlying the beneficial effects of helminth-derived proteins in medicine.
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Affiliation(s)
- Jianqing Li
- School of Pharmacy, Fujian Medical University, Fuzhou, 350004, Fujian, China
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China
- School of Pharmacy, Putian University, Putian, 351100, Fujian, China
| | - Xiangjiang Wang
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China
| | - Qiuhui Wang
- School of Pharmacy, Fujian Medical University, Fuzhou, 350004, Fujian, China
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China
- School of Pharmacy, Putian University, Putian, 351100, Fujian, China
| | - Yishen Hu
- School of Pharmacy, Fujian Medical University, Fuzhou, 350004, Fujian, China
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China
- School of Pharmacy, Putian University, Putian, 351100, Fujian, China
| | - Shouan Wang
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China
| | - Jia Xu
- School of Pharmacy, Fujian Medical University, Fuzhou, 350004, Fujian, China.
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China.
| | - Jianbin Ye
- School of Pharmacy, Fujian Medical University, Fuzhou, 350004, Fujian, China.
- School of Basic Medicine Science, Putian University, Key Laboratory of Translational Tumor Medicine in Fujian Province, Putian, 351100, Fujian, China.
- School of Pharmacy, Putian University, Putian, 351100, Fujian, China.
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7
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Tahiri M, Johnsrud C, Steffensen IL. Evidence and hypotheses on adverse effects of the food additives carrageenan (E 407)/processed Eucheuma seaweed (E 407a) and carboxymethylcellulose (E 466) on the intestines: a scoping review. Crit Rev Toxicol 2023; 53:521-571. [PMID: 38032203 DOI: 10.1080/10408444.2023.2270574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023]
Abstract
This scoping review provides an overview of publications reporting adverse effects on the intestines of the food additives carrageenan (CGN) (E 407)/processed Eucheuma seaweed (PES) (E 407a) and carboxymethylcellulose (CMC) (E 466). It includes evidence from human, experimental mammal and in vitro research publications, and other evidence. The databases Medline, Embase, Scopus, Web of Science Core Collection, Cochrane Database of Systematic Reviews and Epistemonikos were searched without time limits, in addition to grey literature. The publications retrieved were screened against predefined criteria. From two literature searches, 2572 records were screened, of which 224 records were included, as well as 38 records from grey literature, making a total of 262 included publications, 196 on CGN and 101 on CMC. These publications were coded and analyzed in Eppi-Reviewer and data gaps presented in interactive maps. For CGN, five, 69 and 33 research publications on humans, experimental mammals and in vitro experiments were found, further separated as degraded or native (non-degraded) CGN. For CMC, three human, 20 animal and 14 in vitro research publications were obtained. The most studied adverse effects on the intestines were for both additives inflammation, the gut microbiome, including fermentation, intestinal permeability, and cancer and metabolic effects, and immune effects for CGN. Further studies should focus on native CGN, in the form and molecular weight used as food additive. For both additives, randomized controlled trials of sufficient power and with realistic dietary exposure levels of single additives, performed in persons of all ages, including potentially vulnerable groups, are needed.
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Affiliation(s)
- Mirlinda Tahiri
- Department of Food Safety, Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Celine Johnsrud
- Department of Food Safety, Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Inger-Lise Steffensen
- Department of Food Safety, Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
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Xu X, Hu H, Zeng H, Li B, Yin Q, Jiang Y, Zang L, Zhao C, Qian G. Sinisan ameliorates colonic injury induced by water immersion restraint stress by enhancing intestinal barrier function and the gut microbiota structure. PHARMACEUTICAL BIOLOGY 2023; 61:598-609. [PMID: 37013944 PMCID: PMC10075512 DOI: 10.1080/13880209.2023.2191643] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/21/2023] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
CONTEXT Sinisan (SNS) has been used to treat psychosomatic diseases of the digestive system. But little is known about how SNS affects water immersion restraint stress (WIRS). OBJECTIVE To study the effects of SNS on colonic tissue injury in the WIRS model. MATERIALS AND METHODS Forty-eight Kunming (KM) mice were randomized into 6 groups (n = 8): The control and WIRS groups receiving deionized water; the SNS low-dose (SL, 3.12 g/kg/d), SNS middle-dose (SM, 6.24 g/kg/d), SNS high-dose (SH, 12.48 g/kg/d), and diazepam (DZ, 5 mg/kg/d) groups; each with two daily administrations for 5 consecutive days. The 5 treatment groups were subjected to WIRS for 24 h on day 6. The effects of SNS on colon tissue injury caused by WIRS were assessed by changes in colon histology, inflammatory cytokines, brain-gut peptides, and tight junction (TJ) proteins levels. 16S rRNA gene sequencing was used to detect the regulation of the gut microbiota. RESULTS SNS pretreatment significantly reduced TNF-α (0.75- to 0.81-fold), IL-6 (0.77-fold), and IFN-γ (0.69-fold) levels; and increased TJ proteins levels, such as ZO-1 (4.06- to 5.27-fold), claudin-1 (3.33- to 5.14-fold), and occludin (6.46- to 11.82-fold). However, there was no significant difference between the levels of substance P (SP) and vasoactive intestinal peptide (VIP) in the control and WIRS groups. SNS regulated the composition of gut microbiota in WIRS mice. CONCLUSION The positive effects of SNS on WIRS could provide a theoretical basis to treat stress-related gastrointestinal disorders.
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Affiliation(s)
- Xiaoying Xu
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Huimei Hu
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Haizhou Zeng
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Boyi Li
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Qiuxiong Yin
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Yupeng Jiang
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Linquan Zang
- College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Changlin Zhao
- Health Science College, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Guoqiang Qian
- School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, P.R. China
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9
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Subramaniam S, Kamath S, Ariaee A, Prestidge C, Joyce P. The impact of common pharmaceutical excipients on the gut microbiota. Expert Opin Drug Deliv 2023; 20:1297-1314. [PMID: 37307224 DOI: 10.1080/17425247.2023.2223937] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/07/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Increasing attention is being afforded to understanding the bidirectional relationships that exist between oral medications and the gut microbiota, in an attempt to optimize pharmacokinetic performance and mitigate unwanted side effects. While a wealth of research has investigated the direct impact of active pharmaceutical ingredients (APIs) on the gut microbiota, the interactions between inactive pharmaceutical ingredients (i.e. excipients) and the gut microbiota are commonly overlooked, despite excipients typically representing over 90% of the final dosage form. AREAS COVERED Known excipient-gut microbiota interactions for various classes of inactive pharmaceutical ingredients, including solubilizing agents, binders, fillers, sweeteners, and color additives, are reviewed in detail. EXPERT OPINION Clear evidence indicates that orally administered pharmaceutical excipients directly interact with gut microbes and can either positively or negatively impact gut microbiota diversity and composition. However, these relationships and mechanisms are commonly overlooked during drug formulation, despite the potential for excipient-microbiota interactions to alter drug pharmacokinetics and interfere with host metabolic health. The insights derived from this review will inform pharmaceutical scientists with the necessary design considerations for mitigating potential adverse pharmacomicrobiomic interactions when formulating oral dosage forms, ultimately providing clear avenues for improving therapeutic safety and efficacy.
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Affiliation(s)
- Santhni Subramaniam
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Srinivas Kamath
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Amin Ariaee
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Clive Prestidge
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Paul Joyce
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
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10
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Guo J, Shang X, Chen P, Huang X. How does carrageenan cause colitis? A review. Carbohydr Polym 2023; 302:120374. [PMID: 36604052 DOI: 10.1016/j.carbpol.2022.120374] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022]
Abstract
Carrageenan is a common additive, but mounting studies have reported that it may cause or aggravate inflammation in the intestines. The safety of carrageenan remains controversial and its inflammatory mechanisms are unclear. In this review, the pathogenesis of colitis by carrageenans was discussed. We analyzed the pathogenesis of inflammatory bowel disease, followed that line of thought, the existing evidence of carrageenans causing colitis in cellular and animal models was summarized to draw its colitis pathogenesis. Two pathways were described including: 1) carrageenan changed the composition of intestinal microbiota, especially Akkermansia muciniphila, which destroyed the mucosal barrier and triggered the inflammatory immune response; and 2) carrageenan directly contacted with receptors on epithelial cells and activated the NF-κB inflammatory pathway. This review aim to provide guidance for exploring the treatment of colitis caused by carrageenan, and safe processing and utilization of carrageenan in food industry, which is worthy of study in the future.
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Affiliation(s)
- Juanjuan Guo
- College of Oceanology and Food Sciences, Quanzhou Normal University, Quanzhou, Fujian 362000, China; College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
| | - Xuke Shang
- College of Oceanology and Food Sciences, Quanzhou Normal University, Quanzhou, Fujian 362000, China; College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Peilin Chen
- College of Oceanology and Food Sciences, Quanzhou Normal University, Quanzhou, Fujian 362000, China
| | - Xiaozhou Huang
- College of Oceanology and Food Sciences, Quanzhou Normal University, Quanzhou, Fujian 362000, China
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11
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Sandys O, Te Velde A. Raising the Alarm: Environmental Factors in the Onset and Maintenance of Chronic (Low-Grade) Inflammation in the Gastrointestinal Tract. Dig Dis Sci 2022; 67:4355-4368. [PMID: 34981314 DOI: 10.1007/s10620-021-07327-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 11/10/2021] [Indexed: 12/12/2022]
Abstract
Chronic inflammatory disease of the gastrointestinal (GI) tract is defined by several pathophysiological characteristics, such as dysbiosis of the microbiota, epithelial barrier hyperpermeability, systemic dissemination of endotoxins and chronic inflammation. In addition to well-reported environmental factors in non-communicable disease, such as smoking, diet, and exercise, humans are frequently exposed to myriads more environmental factors, from pesticides to food additives. Such factors are ubiquitous across both our diet and indoor/outdoor environments. A major route of human exposure to these factors is ingestion, which frequently occurs due to their intentional addition (intentional food additives) and/or unintentional contamination (unintentional food contaminants) of food products-often linked to environmental pollution. Understanding how this persistent, diverse exposure impacts GI health is of paramount importance, as deterioration of the GI barrier is proposed to be the first step towards systemic inflammation and chronic disease. Therefore, we aim to evaluate the impact of ingestion of environmental factors on inflammatory processes in the GI tract. In this review, we highlight human exposure to intentional food additives (e.g. emulsifiers, bulking agents) and unintentional food contaminants (e.g. persistent organic pollutants, pesticides, microplastics), then present evidence for their association with chronic disease, modification of the GI microbiota, increased permeability of the GI barrier, systemic dissemination of endotoxins, local (and distal) pro-inflammatory signalling, and induction of oxidative stress and/or endoplasmic reticulum stress. We also propose a link to NLRP3-inflammasome activation. These findings highlight the contribution of common environmental factors towards deterioration of GI health and the induction of pathophysiology associated with onset and maintenance of chronic inflammation in the GI tract.
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Affiliation(s)
- Oliver Sandys
- Amsterdam UMC, University of Amsterdam, Tytgat Institute for Liver and Intestinal Research, AGEM, Amsterdam, The Netherlands
- Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Anje Te Velde
- Amsterdam UMC, University of Amsterdam, Tytgat Institute for Liver and Intestinal Research, AGEM, Amsterdam, The Netherlands.
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12
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Liu C, Zhan S, Tian Z, Li N, Li T, Wu D, Zeng Z, Zhuang X. Food Additives Associated with Gut Microbiota Alterations in Inflammatory Bowel Disease: Friends or Enemies? Nutrients 2022; 14:nu14153049. [PMID: 35893902 PMCID: PMC9330785 DOI: 10.3390/nu14153049] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/08/2022] [Accepted: 07/21/2022] [Indexed: 12/13/2022] Open
Abstract
During the 21st century, the incidence and prevalence of inflammatory bowel disease (IBD) is rising globally. Despite the pathogenesis of IBD remaining largely unclear, the interactions between environmental exposure, host genetics and immune response contribute to the occurrence and development of this disease. Growing evidence implicates that food additives might be closely related to IBD, but the involved molecular mechanisms are still poorly understood. Food additives may be categorized as distinct types in accordance with their function and property, including artificial sweeteners, preservatives, food colorant, emulsifiers, stabilizers, thickeners and so on. Various kinds of food additives play a role in modifying the interaction between gut microbiota and intestinal inflammation. Therefore, this review comprehensively synthesizes the current evidence on the interplay between different food additives and gut microbiome alterations, and further elucidates the potential mechanisms of food additives–associated microbiota changes involved in IBD.
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Affiliation(s)
- Caiguang Liu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Shukai Zhan
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Zhenyi Tian
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China;
| | - Na Li
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Tong Li
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Dongxuan Wu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Zhirong Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
- Correspondence: (Z.Z.); (X.Z.)
| | - Xiaojun Zhuang
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
- Correspondence: (Z.Z.); (X.Z.)
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13
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Effects of Poncirin, a Citrus Flavonoid and Its Aglycone, Isosakuranetin, on the Gut Microbial Diversity and Metabolomics in Mice. Molecules 2022; 27:molecules27113641. [PMID: 35684581 PMCID: PMC9182171 DOI: 10.3390/molecules27113641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 02/05/2023] Open
Abstract
Poncirin (PC) and its aglycone, isosakuranetin (IR), occur naturally in citrus fruits. This study aimed to explore the pathways behind the different health benefits of PC and IR by evaluating the effect of these two bioactive flavonoids on the gut microbial diversity and metabolomics of mice. The 16S rRNA gene sequencing was used to analyze the alteration of gut microbiota in mice after PC and IR intervention. The metabolic impact of PC and IR in mice were studied using a metabolomics approach based on LC-MS analysis. Results showed that, after 7 days intervention, PC and IR multiplied the abundance of Parabacteroides in mice’s intestinal tracts by 1.2 and 1.0 times, respectively. PC increased the abundance of Bacteroides by 2.4 times. IR reduced the Allobaculum abundance by 1.0 time and increased Alloprevotella abundance by 1.5 times. When mice were given PC, their fecal acetic acid level increased by 1.8 times, while their isobutyric and isovaleric acid content increased by 1.2 and 1.3 times, respectively. Supplementation with IR had no significant effect on the content of short-chain fatty acids (SCFAs) in the feces of mice. The potential urine biomarkers of mice in the PC group were involved in the digestion and absorption of protein and carbohydrate, as well as the metabolism of amino acids, such as glycine, serine, threonine, tryptophan, D-arginine, D-ornithine, etc. IR mainly affected the amino acid metabolic pathways in mice, including taurine and hypotaurine metabolism, glutathione metabolism, histidine metabolism, D-glutamate metabolism, etc. This study provided valuable clues for future research on the health promoting mechanisms of PC and IR.
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14
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Limosilactobacillus reuteri SLZX19-12 Protects the Colon from Infection by Enhancing Stability of the Gut Microbiota and Barrier Integrity and Reducing Inflammation. Microbiol Spectr 2022; 10:e0212421. [PMID: 35658572 PMCID: PMC9241593 DOI: 10.1128/spectrum.02124-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Limosilactobacillus reuteri plays an important role in regulating intestinal functions and maintaining barrier integrity in animals. In this study, Limosilactobacillus reuteri strain SLZX19-12 was isolated from the fecal microbiota of Tibetan pigs, and it was found that this strain is sensitive to common antibiotics and has strong resistance to stress. Upon being administered by gavage at different doses, including low, medium, and high doses, for 14 days, Limosilactobacillus reuteri SLZX19-12 may enhance the intestinal barrier. After administration of a high dose of SLZX19-12, mice were challenged with Salmonella enterica serovar Typhimurium SL1344. Infection with Salmonella Typhimurium SL1344 led to disordered colonic microbiotas, colonic inflammation through the S100A8/S100A9-NF-κB pathway and potential apoptosis, and translocation of pathogens to parenteral visceral organs in mice. However, the mice pretreated with Limosilactobacillus reuteri SLZX19-12 showed lower loads of Salmonella in visceral organs, less colonic inflammation, and higher barrier integrity. More importantly, the administration of strain SLZX19-12 resulted in a more stable microbiota structure of the colon, in which the abundance of Alloprevotella was greatly enhanced. Therefore, this study suggests that Limosilactobacillus reuteri SLZX19-12 can protect the colon from infection by enhancing the stability of gut microbiota and barrier integrity and reducing inflammation. IMPORTANCE The use of antibiotics to treat bacterial infections leads to a series of side effects. As an alternative method, the biocontrol strategy, which uses probiotics to suppress pathogens, is considered a potential way to deal with bacterial infections in gut. However, there are few probiotics that are currently safe and can protect against infection. In this study, Limosilactobacillus reuteri strain SLZX19-12 was obtained from Tibetan pigs, which have higher resistance to infection. This strain is sensitive to conventional antibiotics, secretes a wide spectrum of enzymes, and also promotes the intestinal barrier function in mice. In addition, Limosilactobacillus reuteri SLZX19-12 can promote the stability of the gut microbiota to avoid or alleviate the occurrence or development of foodborne infections.
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15
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Cangiano L, Villot C, Renaud J, Ipharraguerre I, McNeil B, DeVries T, Steele M. Induction of leaky gut by repeated intramuscular injections of indomethacin to preweaning Holstein calves. J Dairy Sci 2022; 105:7125-7139. [DOI: 10.3168/jds.2021-21768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 04/12/2022] [Indexed: 11/19/2022]
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16
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Chen H, Ye C, Cai B, Zhang F, Wang X, Zhang J, Zhang Z, Guo Y, Yao Q. Berberine inhibits intestinal carcinogenesis by suppressing intestinal pro-inflammatory genes and oncogenic factors through modulating gut microbiota. BMC Cancer 2022; 22:566. [PMID: 35596224 PMCID: PMC9123795 DOI: 10.1186/s12885-022-09635-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/04/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The role of Berberine (BBR) in colorectal cancer (CRC) and gut microbiota has begun to appreciate. However, there was no direct evidence confirm that the gut microbiota regulated by BBR could inhibit CRC. This report investigated the effect of stool from BBR treated subjects and its effect on CRC. METHODS A mouse model for CRC was developed using azoxymethane (AOM) and dextran sulfate sodium (DSS). Intestinal tissue from affected mice were used to determine the efficacy of BBR against CRC. Stool samples were collected for the 16s rRNA gene sequencing and fecal microbiota transplantation (FMT). Finally, the mechanism of gut microbiota from BBR treated mice on CRC was explored using immunohistochemistry, RNA-Sequencing, quantitative RT-PCR, and western blot analyses. RESULTS BBR significantly reduced intestinal tumor development. The richness of gut microbiota were notably decreased by BBR. Specifically, the relative abundance of beneficial bacteria (Roseburia, Eubacterium, Ruminococcaceae, and Firmicutes_unclassified) was increased while the level of bacteria (Odoribacter, Muribaculum, Mucispirillum, and Parasutterella) was decreased by BBR treatment. FMT experiment determined that the mice fed with stool from BBR treated AOM/DSS mice demonstrated a relatively lower abundance of macroscopic polyps and a significantly lower expression of β-catenin, and PCNA in intestinal tissue than mice fed with stool from AOM/DSS mice. Mechanistically, intestinal tissue obtained from mice fed with stool from BBR treated AOM/DSS mice demonstrated a decreased expression of inflammatory cytokines including interleukin 1β (IL-1β), tumor necrosis factor-α (TNF-α), C-C motif chemokine 1 (Ccl1), Ccl6, and C-X-C motif ligand (Cxcl9). In addition, the NF-κB expression was greatly suppressed in mice fed with stool from BBR treated AOM/DSS mice. Real-time PCR arrays revealed a down-regulation of genes involved in cell proliferation, angiogenesis, invasiveness, and metastasis in mice fed with stool from BBR treated AOM/DSS mice. CONCLUSIONS Stool obtained from BBR treated AOM/DSS mice was able to increase colon length while simultaneously decreasing the density of macroscopic polyps, cell proliferation, inflammatory modulators and the expression of NF-κB. Therefore, it was concluded that suppression of pro-inflammatory genes and carcinogens factors by modulating gut microbiota was an important pathway for BBR to inhibit tumor growth in conventional mice.
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Affiliation(s)
- Haitao Chen
- Department of Integrated Chinese and Western Medicine, Institute of Basic Medicine and Cancer (IBMC), The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Chinese Academy of Sciences, 310022, Hangzhou, Zhejiang, China
| | - Chenxiao Ye
- Zhejiang Chinese Medical University, 310053, Hangzhou, Zhejiang, China
| | - Biyu Cai
- Zhejiang Chinese Medical University, 310053, Hangzhou, Zhejiang, China
| | - Fan Zhang
- Zhejiang Chinese Medical University, 310053, Hangzhou, Zhejiang, China
| | - Xuanying Wang
- Zhejiang Chinese Medical University, 310053, Hangzhou, Zhejiang, China
| | - Jin Zhang
- Zhejiang Chinese Medical University, 310053, Hangzhou, Zhejiang, China
| | - Zewei Zhang
- Department of Abdominal Surgical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), 310022, Hangzhou, Zhejiang, China
| | - Yong Guo
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, 310003, Hangzhou, Zhejiang, China.
| | - Qinghua Yao
- Department of Integrated Chinese and Western Medicine, Institute of Basic Medicine and Cancer (IBMC), The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Chinese Academy of Sciences, 310022, Hangzhou, Zhejiang, China. .,Key Laboratory of Traditional Chinese Medicine Oncology, Zhejiang Cancer Hospital, 310022, Hangzhou, China. .,Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, 310022, Hangzhou, Zhejiang, China.
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Dietary Valine Ameliorated Gut Health and Accelerated the Development of Nonalcoholic Fatty Liver Disease of Laying Hens. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4704771. [PMID: 34484560 PMCID: PMC8410442 DOI: 10.1155/2021/4704771] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/21/2021] [Accepted: 08/06/2021] [Indexed: 12/14/2022]
Abstract
Valine is an important essential amino acid of laying hens. Dietary supplemented with BCAAs ameliorated gut microbiota, whereas elevated blood levels of BCAAs are positively associated with obesity, insulin resistance, and diabetes in both humans and rodents. General controlled nonrepressed (GCN2) kinase plays a crucial role in regulating intestinal inflammation and hepatic fatty acid homeostasis during amino acids deficiency, while GCN2 deficient results in enhanced intestinal inflammation and developed hepatic steatosis. However, how long-term dietary valine impacts gut health and the development of nonalcoholic fatty liver disease (NAFLD) remains unknown. Hence, in the present study, we elucidated the effects of dietary valine on intestinal barrier function, microbial homeostasis, and the development of NAFLD. A total of 960 healthy 33-weeks-old laying hens were randomly divided into five experimental groups and fed with valine at the following different levels in a feeding trial that lasted 8 weeks: 0.59, 0.64, 0.69, 0.74, and 0.79%, respectively. After 8 weeks of treatment, related tissues and cecal contents were obtained for further analysis. The results showed that diet supplemented with valine ameliorated gut health by improving intestinal villus morphology, enhancing intestinal barrier, decreasing cecum pathogenic bacteria abundances such as Fusobacteriota and Deferribacterota, and inhibiting inflammatory response mediated by GCN2. However, long-term intake of high levels of dietary valine (0.74 and 0.79%) accelerated the development of NAFLD of laying hens by promoting lipogenesis and inhibiting fatty acid oxidation mediated by GCN2-eIF2α-ATF4. Furthermore, NAFLD induced by high levels of dietary valine (0.74 and 0.79%) resulted in strengthening oxidative stress, ER stress, and inflammatory response. Our results revealed that high levels of valine are a key regulator of gut health and the adverse metabolic response to NAFLD and suggested reducing dietary valine as a new approach to preventing NAFLD of laying hens.
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18
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Zou J, Liu C, Jiang S, Qian D, Duan J. Cross Talk between Gut Microbiota and Intestinal Mucosal Immunity in the Development of Ulcerative Colitis. Infect Immun 2021; 89:e0001421. [PMID: 33526559 PMCID: PMC8370674 DOI: 10.1128/iai.00014-21] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Ulcerative colitis (UC), a nonspecific inflammatory disease, is characterized by inflammation and mucosal damage in the colon, and its prevalence in the world is increasing. Nevertheless, the exact pathogenesis of UC is still unclear. Accumulating data have suggested that its pathogenesis is multifactorial, involving genetic predisposition, environmental factors, microbial dysbiosis, and dysregulated immune responses. Generally, UC is aroused by inappropriate immune activation based on the interaction of host and intestinal microbiota. The relationship between microbiota and host immune system in the pathogenesis of UC is complicated. However, increasing evidence indicates that the shift of microbiota composition can substantially influence intestinal immunity. In this review, we primarily focus on the delicate balance between microbiota and gut mucosal immunity during UC progression.
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Affiliation(s)
- Junfeng Zou
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Chen Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Shu Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Dawei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
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Qu L, Lin X, Liu C, Ke C, Zhou Z, Xu K, Cao G, Liu Y. Atractylodin Attenuates Dextran Sulfate Sodium-Induced Colitis by Alleviating Gut Microbiota Dysbiosis and Inhibiting Inflammatory Response Through the MAPK Pathway. Front Pharmacol 2021; 12:665376. [PMID: 34335244 PMCID: PMC8320761 DOI: 10.3389/fphar.2021.665376] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/14/2021] [Indexed: 12/14/2022] Open
Abstract
In this study, we investigated the therapeutic effects and mechanism of atractylodin (ATL) on dextran sulfate sodium (DSS)-induced ulcerative colitis in mice. We found that atractylodin could significantly reverse the effects of DSS-induced ulcerative colitis, such as weight loss, disease activity index score; shorten the colon length, and reverse the pathological changes in the colon of mice. Atractylodin could inhibit the activation of colonic macrophages by inhibiting the MAPK pathway and alleviate intestinal inflammation in the mouse model of ulcerative colitis. Moreover, it could protect the intestinal barrier by inhibiting the decrease of the tight junction proteins, ZO-1, occludin, and MUC2. Additionally, atractylodin could decrease the abundance of harmful bacteria and increase that of beneficial bacteria in the intestinal tract of mice, effectively improving the intestinal microecology. In an LPS-induced macrophage model, atractylodin could inhibit the MAPK pathway and expression of the inflammatory factors of macrophages. Atractylodin could also inhibit the production of lactate, which is the end product of glycolysis; inhibit the activity of GAPDH, which is an important rate-limiting enzyme in glycolysis; inhibit the malonylation of GAPDH, and, thus, inhibit the translation of TNF-α. Therefore, ours is the first study to highlight the potential of atractylodin in the treatment of ulcerative colitis and reveal its possible mechanism.
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Affiliation(s)
- Linghang Qu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Xiong Lin
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Chunlian Liu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Chang Ke
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Zhongshi Zhou
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Center for Hubei TCM Processing Technology Engineering, Wuhan, China
| | - Kang Xu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Center for Hubei TCM Processing Technology Engineering, Wuhan, China
| | - Guosheng Cao
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Center for Hubei TCM Processing Technology Engineering, Wuhan, China
| | - Yanju Liu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Center for Hubei TCM Processing Technology Engineering, Wuhan, China
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20
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Liu F, Hou P, Zhang H, Tang Q, Xue C, Li RW. Food-grade carrageenans and their implications in health and disease. Compr Rev Food Sci Food Saf 2021; 20:3918-3936. [PMID: 34146449 DOI: 10.1111/1541-4337.12790] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 04/22/2021] [Accepted: 05/13/2021] [Indexed: 12/19/2022]
Abstract
Food additives, often used to guarantee the texture, shelf-life, taste, and appearance of processed foods, have gained widespread attention due to their increased link to the growing incidence of chronic diseases. As one of the most common additives, carrageenans have been used in human diets for hundreds of years. While classified as generally recognized as safe (GRAS) for human consumption, numerous studies since the 1980s have suggested that carrageenans, particularly those with random coil conformations, may have adverse effects on gastrointestinal health, including aggravating intestinal inflammation. While these studies have provided some evidence of adverse effects, the topic is still controversial. Some have suggested that the negative consequence of the consumption of carrageenans may be structure dependent. Furthermore, pre-existing conditions may predispose individuals to varied outcomes of carrageenan intake. In this review, structure-function relationships of various carrageenans in the context of food safety are discussed. We reviewed the molecular mechanisms by which carrageenans exert their biological effects. We summarized the findings associated with carrageenan intake in animal models and clinical trials. Moreover, we examined the interactions between carrageenans and the gut microbiome in the pathogenesis of gastrointestinal disorders. This review argues for personalized guidance on carrageenan intake based on individuals' health status. Future research efforts that aim to close the knowledge gap on the effect of low-dose and chronic carrageenan intake as well as interactions among food additives should be conducive to the improved safety profile of carrageenans in processed food products.
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Affiliation(s)
- Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Pengfen Hou
- Affiliated Hospital of Qingdao Binhai University, Qingdao, China
| | - Hui Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Qingjuan Tang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, China.,Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Robert W Li
- USDA-ARS Animal Genomics and Improvement Laboratory, Beltsville, Maryland, USA
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21
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Lin DP, Jin YL, Hu DY, Ying SJ, Jiang Y. Influence of TRAIL Deficiency on Th17 Cells and Colonic Microbiota in Experimental Colitis Mouse Model. Am J Med Sci 2021; 362:188-197. [PMID: 33932348 DOI: 10.1016/j.amjms.2021.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 10/21/2020] [Accepted: 04/21/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND The abnormalities of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) are implicated in various autoimmune disorders and tumors. This study investigated the influence of TRAIL deficiency on Th17 cells and colonic microbiota in experimental colitis mouse model. METHODS Mice were randomly divided into 4 groups: wild-type, TRAIL gene knock-out (TRAIL-/-), wild-type colitis and TRAIL-/- colitis groups. Colitis was induced by oral administration of 3.5% dextran sulfate sodium (DSS) for 7 consecutive days. Mice were given scores for disease severity both clinically and histopathologically. Th17 cells in peripheral blood and mesenteric lymph nodes (MLNs) were assessed using flow cytometry. The expression levels of Th17 cell markers IL-17A and ROR-γt were evaluated by quantitative real-time polymerase chain reaction. The colonic samples were also analyzed for microbiota profile by 16s-rDNA gene sequencing on variable V4 region. RESULTS Compared with wild-type counterparts, TRAIL-/- mice developed more severe colitis after DSS treatment. Colitis TRAIL-/- mice had increased proportion of Th17 cells and elevated mRNA expression levels of IL-17A and ROR-γt in peripheral blood and MLNs compared with colitis wild-type mice. In contrast to colitis wild-type mice, the composition of colonic microbiota was shifted in colitis TRAIL-/- mice, and was characterized by increased alpha diversity, increased TM7, deferribacteres and tenericutes, and decreased proteobacteria at the phylum level. CONCLUSIONS These findings suggested that TRAIL deficiency not only aggravated DSS-induced colitis, but also led to enhanced Th17 cell response and altered colonic microbiota composition.
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Affiliation(s)
- Dao-Po Lin
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Ying-Li Jin
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Ding-Yuan Hu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Shi-Jie Ying
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Yi Jiang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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22
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Weng YJ, Jiang DX, Liang J, Ye SC, Tan WK, Yu CY, Zhou Y. Effects of Pretreatment with Bifidobacterium bifidum Using 16S Ribosomal RNA Gene Sequencing in a Mouse Model of Acute Colitis Induced by Dextran Sulfate Sodium. Med Sci Monit 2021; 27:e928478. [PMID: 33686049 PMCID: PMC7959103 DOI: 10.12659/msm.928478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Bifidobacterium is a potentially effective and safe treatment for patients with inflammatory bowel disease (IBD), including ulcerative colitis and Crohn’s disease. However, information on the influence of B. bifidum on gut microbial diversity of treated and pretreated IBD patients is limited. Material/Methods Our study investigated therapeutic and preventive effects of B. bifidum ATCC 29521 on C57BL/6 mice with dextran sulfate sodium (DSS)-induced acute colitis via 16S ribosomal ribonucleic acid (rRNA) gene sequencing. Results Treatment and pretreatment of mice with B. bifidum ATCC 29521 significantly alleviated the severity of acute colitis on the basis of clinical and pathologic indicators. 16S rRNA gene sequencing showed that administration of B. bifidum shifted composition of the gut microbiome in mice with DSS-induced colitis in both treated and pretreated groups. Mice pretreated with B. bifidum ATCC 29521 for 21 days exhibited a significant increase in diversity of the gut microbiome. Principal coordinate analysis showed that gut microbiota structure was shaped by different treatments and time points. On the basis of linear discriminant analysis of effect size, the abundance of the genus Escherichia-Shigella, belonging to the family Enterobacteriaceae, was reduced in the B. bifidum-treated group, indicating that pathogens were inhibited by the B. bifidum treatment. Furthermore, the genera Intestinimonas and Bacteroides were significantly associated with the B. bifidum-pretreated group. Conclusions 16S rRNA gene sequencing showed that pretreatment with B. bifidum ATCC 29521 reduced intestinal inflammation and altered the gut microbiota to favor the genera Intestinimonas and Bacteroides.
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Affiliation(s)
- Yi-Jie Weng
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Dan-Xian Jiang
- Department of Medical Oncology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Jian Liang
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Shi-Cai Ye
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Wen-Kai Tan
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Cai-Yuan Yu
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
| | - Yu Zhou
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China (mainland)
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23
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Chandrasekar N, Dehlsen K, Leach ST, Krishnan U. Exploring Clinical Outcomes and Feasibility of Blended Tube Feeds in Children. JPEN J Parenter Enteral Nutr 2021; 45:685-698. [PMID: 33305384 DOI: 10.1002/jpen.2062] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
Abstract
Commercially produced complete nutritional formulas (CFs) are commonly delivered to children requiring enteral nutrition via gastrostomy. However, a cultural shift toward consuming a more natural diet consisting of whole foods has caused the use of blenderized tube feeds (BTFs) to grow in popularity among parents and carers in recent years. There are advantages and disadvantages of both BTF and CF use. There is evidence that suggests that BTFs can significantly improve tube-feeding tolerance and reduce gastrointestinal symptoms associated with tube feeding, such as gagging, retching, and constipation, thereby resulting in an improved quality of life (QoL) for enterally fed children and their caregivers. BTFs have also been implicated in increasing the diversity of the gut microbiota in enterally fed children. However, concerns have been raised that BTFs may be inferior to CFs in energy and nutrition sufficiency. Issues such as microbial contamination, tube blockages, and difficulties in preparation and administration may also complicate the use of BTFs. Additionally, like CFs, BTFs can vary significantly in nutrition composition, and dietitian involvement with BTF use is crucial. The current literature on the clinical outcomes of BTF use is limited, and further research is needed before recommendations can be made on BTF use in children. A literature review was conducted to compare clinical outcomes between BTFs and CFs and evaluate the feasibility of BTF use in children.
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Affiliation(s)
- Neha Chandrasekar
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Kate Dehlsen
- Department of Nutrition and Dietetics, Sydney Children's Hospital, Randwick, New South Wales, Australia.,Department of Paediatric Gastroenterology, Sydney Children's Hospital, Randwick, New South Wales, Australia
| | - Steven T Leach
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Usha Krishnan
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Department of Paediatric Gastroenterology, Sydney Children's Hospital, Randwick, New South Wales, Australia
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24
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Ren J, Yue B, Wang H, Zhang B, Luo X, Yu Z, Zhang J, Ren Y, Mani S, Wang Z, Dou W. Acacetin Ameliorates Experimental Colitis in Mice via Inhibiting Macrophage Inflammatory Response and Regulating the Composition of Gut Microbiota. Front Physiol 2021; 11:577237. [PMID: 33536931 PMCID: PMC7848181 DOI: 10.3389/fphys.2020.577237] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 12/28/2020] [Indexed: 12/20/2022] Open
Abstract
Acacetin, a natural dietary flavonoid abundantly found in acacia honey and citrus fruits, reportedly exerts several biological effects, such as anti-tumor, anti-inflammatory, and anti-oxidative effects. However, the effects of acacetin on intestinal inflammation remain unclear. We sought to investigate whether acacetin ameliorates inflammatory bowel disease (IBD) in mice with dextran sulfate sodium (DSS)-induced ulcerative colitis (UC). Our results suggest that acacetin alleviates the clinical symptoms of DSS-induced colitis, as determined by body weight loss, diarrhea, colon shortening, inflammatory infiltration, and histological injury. Further studies showed that acacetin remarkably inhibited both the macrophage inflammatory response in vitro and levels of inflammatory mediators in mice with colitis. In addition, some features of the gut microbiota were disordered in mice with DSS-induced colitis, as evidenced by a significant reduction in microbiota diversity and a marked shift in bacterial profiles. However, acacetin treatment improved this imbalance and restored gut microbiota to levels that were similar to those in normal mice. In conclusion, our work presents evidence that acacetin attenuates DSS-induced colitis in mice, at least in part, by inhibiting inflammation and regulating the intestinal microbiota.
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Affiliation(s)
- Junyu Ren
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Bei Yue
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Hao Wang
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Beibei Zhang
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Xiaoping Luo
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Zhilun Yu
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Jing Zhang
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Yijing Ren
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Sridhar Mani
- Department of Medicine and Genetics, Albert Einstein College of Medicine, The Bronx, NY, United States
| | - Zhengtao Wang
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
| | - Wei Dou
- The MOE key Laboratory of Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, and the SATCM key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, China
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25
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Khafipour A, Jordaan EM, Flores-Orozco D, Khafipour E, Levin DB, Sparling R, Cicek N. Response of Microbial Community to Induced Failure of Anaerobic Digesters Through Overloading With Propionic Acid Followed by Process Recovery. Front Bioeng Biotechnol 2020; 8:604838. [PMID: 33363133 PMCID: PMC7759631 DOI: 10.3389/fbioe.2020.604838] [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: 09/10/2020] [Accepted: 11/23/2020] [Indexed: 01/18/2023] Open
Abstract
In order to effectively use microbial-based strategies to manage anaerobic digesters, it is necessary to distinguish between community shifts that are part of the natural dynamic of the system and shifts caused by environmental or operational disturbances. The objective of this research study was to evaluate the significance of changes in the microbial community of anaerobic digesters during failure in correlation to operational parameters such as an organic acid overload. Five continuously stirred 0.5 L reactors were set-up as semi-continuously-fed, mesophilic dairy manure digesters with a 30-day hydraulic retention time. After a 120-day stabilization period, two digesters were kept as controls, while the organic loading rates in the triplicate set were increased step-wise to ultimately provide a shock-load leading to failure using propionic acid spikes. Acidosis resulting in near cessation of biogas and termination of methane production occurred between 4 and 7 weeks, after which all the digesters continued to be fed only dairy manure. The shock loading of propionic acid led to an accumulation of mainly acetate and propionate, with low levels of iso-butyrate, butyrate, iso-valerate, and valerate. High-throughput Illumina sequencing of the V4 region of the bacterial and archaeal 16S rRNA gene in digester samples showed a significant change in the microbial community composition during propionic acid overload, followed by a return to the original composition with regular feedstock. Bacterial genera whose relative abundance decreased during the inhibition stage included Sedimentibacter, Syntrophomonas, TSCOR003.O20, and Marinilabiaceae, while the relative abundance of Lachnospiraceae, Ruminococcus, Mogibacteriaceae, Pyramidobacter, and Bacteroides increased. The relative abundance of dominant methanogens, Methanosarcina and Methanobacterium, although initially resistant, were decreased (from 91.71 to 12.14% and from 2.98 to 0.73%, respectively) during inhibition, while Methanobrevibacter and Methanosphaera that were prominent in the manure feedstock increased from 17.36 to 79.45% and from 0.14 to 1.12%, respectively. Shifts in bacterial and archaeal compositions, back to their pre-shock steady state after failure, highlight the digester's microbial resilience and recovery potential.
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Affiliation(s)
- Azin Khafipour
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Elsie M Jordaan
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Daniel Flores-Orozco
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - David B Levin
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Richard Sparling
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Nazim Cicek
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada
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26
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Yang G, Yan Y, Zhang L, Ruan Z, Hu X, Zhang S, Li X. Porcine circovirus type 2 (PCV2) and Campylobacter infection induce diarrhea in piglets: Microbial dysbiosis and intestinal disorder. ACTA ACUST UNITED AC 2020; 6:362-371. [PMID: 33005770 PMCID: PMC7503086 DOI: 10.1016/j.aninu.2020.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 05/08/2020] [Accepted: 05/29/2020] [Indexed: 02/07/2023]
Abstract
Diarrhea is considered to be associated with microbial dysbiosis caused by infection of pathogens but poorly understood. We herein characterized the colonic microbiota of diarrheal early-weaning piglets infected with porcine circovirus type 2 (PCV2) and Campylobacter. Campylobacter infection significantly decreased species richness and Shannon diversity index of colonic microbiota together with a significant increase in the proportion of Campylobacter and Enterobacteriaceae, whereas no significant difference on the above indexes was observed in piglets infected with PCV2 compared with healthy piglets. PCV2 and Campylobacter infection could disturb the homeostasis of colonic microbiota through deterioration of ecological network within microbial community, and specially Campylobacter performed as a module hub in ecological networks. The microbial dysbiosis caused metabolic dysfunction and led to a remarkable reduction in production of short chain fatty acids, following by a higher pH level in colon cavity. Campylobacter infection disturbed the function of colonic tract barrier observed in terms of significant lower relative expression of claudin-1, occluding, and zonula occludens protein-1 genes, and PCV2 infection induced intestinal inflammation together with a higher permeability of colon. Generally, these results suggested that PCV2 and Campylobacter infection could induce microbial dysbiosis and metabolic dysfunction, and cause intestinal disorder, all of which finally were associated to contribute to the diarrhea of early-weaning piglets.
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Affiliation(s)
- Gang Yang
- School of Life Science, Nanchang University, Nanchang, 330031, China
| | - Yali Yan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Li Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Zheng Ruan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Xiaoqing Hu
- State Key Laboratory of Food Science and Technology and International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Shuo Zhang
- Yunnan Xinan Tianyou Animal Husbandry Technology Co., Ltd., Kunming, 650032, China
| | - Xiaozhen Li
- Yunnan Xinan Tianyou Animal Husbandry Technology Co., Ltd., Kunming, 650032, China
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27
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Khafipour A, Eissa N, Munyaka PM, Rabbi MF, Kapoor K, Kermarrec L, Khafipour E, Bernstein CN, Ghia JE. Denosumab Regulates Gut Microbiota Composition and Cytokines in Dinitrobenzene Sulfonic Acid (DNBS)-Experimental Colitis. Front Microbiol 2020; 11:1405. [PMID: 32670246 PMCID: PMC7331113 DOI: 10.3389/fmicb.2020.01405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/29/2020] [Indexed: 12/11/2022] Open
Abstract
The pro-inflammatory mediator receptor activator of nuclear factor-kappa B ligand (RANKL) plays a significant role in the development of rheumatoid arthritis; however, its role in inflammatory bowel disease is unknown. Genome-wide association meta-analysis for Crohn's disease (CD) identified a variant near the TNFSF11 gene that encodes RANKL and CD risk allele increased expression of RANKL in specific cell lines. This study aims to elucidate if the RANKL inhibitor denosumab can reduce the severity of experimental colitis and modify the gut microbiota composition using murine dinitrobenzenesulfonic acid (DNBS)-experimental model of colitis mimicking CD. In colitic conditions, denosumab treatment significantly decreased the pro-inflammatory cytokines IL-6, IL-1β, and TNF-α within the colonic mucosa. Moreover, colitis was accompanied by disruption of gut microbiota, and preventative treatment with denosumab modulated this disruption. Denosumab treatment also modified the alpha- and beta diversity of colonic mucosa and fecal microbiota. These results provide a rationale for considering denosumab as a future potential therapy in CD; however, more detailed experimental and clinical studies are warranted.
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Affiliation(s)
- Azin Khafipour
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Nour Eissa
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Peris M Munyaka
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - Mohammad F Rabbi
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Kunal Kapoor
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Laetitia Kermarrec
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - Charles N Bernstein
- Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Jean-Eric Ghia
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada.,Section of Gastroenterology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,University of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
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28
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Levine A, Rhodes JM, Lindsay JO, Abreu MT, Kamm MA, Gibson PR, Gasche C, Silverberg MS, Mahadevan U, Boneh RS, Wine E, Damas OM, Syme G, Trakman GL, Yao CK, Stockhamer S, Hammami MB, Garces LC, Rogler G, Koutroubakis IE, Ananthakrishnan AN, McKeever L, Lewis JD. Dietary Guidance From the International Organization for the Study of Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol 2020; 18:1381-1392. [PMID: 32068150 DOI: 10.1016/j.cgh.2020.01.046] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/21/2019] [Accepted: 01/24/2020] [Indexed: 02/07/2023]
Abstract
Recent evidence points to a plausible role of diet and the microbiome in the pathogenesis of both Crohn's disease (CD) and Ulcerative Colitis (UC). Dietary therapies based on exclusion of table foods and replacement with nutritional formulas and/or a combination of nutritional formulas and specific table foods may induce remission in CD. In UC, specific dietary components have also been associated with flare of disease. While evidence of varying quality has identified potential harmful or beneficial dietary components, physicians and patients at the present time do not have guidance as to which foods are safe, may be protective or deleterious for these diseases. The current document has been compiled by the nutrition cluster of the International Organization for the Study of Inflammatory Bowel Diseases (IOIBD) based on the best current evidence to provide expert opinion regarding specific dietary components, food groups and food additives that may be prudent to increase or decrease in the diet of patients with inflammatory bowel diseases to control and prevent relapse of inflammatory bowel diseases.
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Affiliation(s)
- Arie Levine
- Pediatric IBD Center, Wolfson Medical Center Holon, Tel Aviv University, Tel Aviv, Israel
| | - Jonathan M Rhodes
- Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - James O Lindsay
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
| | - Maria T Abreu
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Michael A Kamm
- St Vincent's Hospital and University of Melbourne, Melbourne, Australia
| | - Peter R Gibson
- Monash University and Alfred Health, Melbourne, Australia
| | | | - Mark S Silverberg
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - Uma Mahadevan
- University of California, San Francisco, San Francisco, California
| | - Rotem Sigall Boneh
- Pediatric IBD Center, Wolfson Medical Center Holon, Tel Aviv University, Tel Aviv, Israel
| | - Eyton Wine
- Department of Pediatrics, University of Alberta, Alberta, Canada; Department of Physiology, University of Alberta, Alberta, Canada
| | - Oriana M Damas
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Graeme Syme
- The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Gina L Trakman
- St Vincent's Hospital and University of Melbourne, Melbourne, Australia
| | - Chu Kion Yao
- Monash University and Alfred Health, Melbourne, Australia
| | - Stefanie Stockhamer
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | | | - Luis C Garces
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | | | | | | | - Liam McKeever
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - James D Lewis
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
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Logan M, Gkikas K, Svolos V, Nichols B, Milling S, Gaya DR, Seenan JP, Macdonald J, Hansen R, Ijaz UZ, Russell RK, Gerasimidis K. Analysis of 61 exclusive enteral nutrition formulas used in the management of active Crohn's disease-new insights into dietary disease triggers. Aliment Pharmacol Ther 2020; 51:935-947. [PMID: 32249975 PMCID: PMC8653890 DOI: 10.1111/apt.15695] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/25/2019] [Accepted: 03/01/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Exclusive enteral nutrition (EEN) is an effective treatment for Crohn's disease. AIMS To investigate the hypothesis that ingredients of EEN formulas are unlikely to initiate a disease flare and that their dietary elimination is not essential for disease amelioration. METHODS We performed compositional analysis of EEN formulas with evidence of efficacy in management of active Crohn's disease. Macronutrient content was compared against the dietary reference values (DRV), the UK National Diet and Nutrition Survey (NDNS) and intake of Crohn's disease children. Food additives were cross-referenced against the FAO/WHO database. RESULTS Sixty-one formulas were identified with variable composition (carbohydrates [22.8%-89.3%], protein [7.8%-30.1%], fat [0%-52.5%]). Maltodextrin, milk protein and vegetable/plant oils were the commonest macronutrient sources. Their n-6:n-3 fatty acid ratio varied from 0.25 to 46.5. 56 food additives were identified (median per formula: 11). All formulas were lactose-free, gluten-free, and 82% lacked fibre. The commonest food additives were emulsifiers, stabilisers, antioxidants, acidity regulators and thickeners. Food additives, implicated in Crohn's disease aetiology, were present in formulas (modified starches [100%], carrageenan [22%], carboxymethyl cellulose [13%] and polysorbate 80 [5%]). Remission rates did not differ between EEN formulas with and without those food additives. Analysis including only formulas from randomised controlled trials (RCTs) retained in the latest Cochrane meta-analysis produced similar findings. EEN formulas contained less energy from saturated fat than NDNS intake. CONCLUSION We have identified food ingredients which are present in EEN formulas that are effective in Crohn's disease and challenge perceptions that these ingredients might be harmful.
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Affiliation(s)
- Michael Logan
- Human NutritionSchool of Medicine, Dentistry and NursingUniversity of GlasgowGlasgow Royal InfirmaryGlasgowUK,Civil EngineeringSchool of EngineeringUniversity of GlasgowGlasgowUK
| | - Konstantinos Gkikas
- Human NutritionSchool of Medicine, Dentistry and NursingUniversity of GlasgowGlasgow Royal InfirmaryGlasgowUK
| | - Vaios Svolos
- Human NutritionSchool of Medicine, Dentistry and NursingUniversity of GlasgowGlasgow Royal InfirmaryGlasgowUK
| | - Ben Nichols
- Human NutritionSchool of Medicine, Dentistry and NursingUniversity of GlasgowGlasgow Royal InfirmaryGlasgowUK
| | - Simon Milling
- Institute for Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Daniel R. Gaya
- Department of GastroenterologyGlasgow Royal InfirmaryGlasgowUK
| | - John Paul Seenan
- Department of GastroenterologyQueen Elizabeth University HospitalNHS Greater Glasgow & ClydeGlasgowUK
| | - Jonathan Macdonald
- Department of GastroenterologyQueen Elizabeth University HospitalNHS Greater Glasgow & ClydeGlasgowUK
| | - Richard Hansen
- Department of Paediatric GastroenterologyRoyal Hospital for ChildrenGlasgowUK
| | - Umer Z. Ijaz
- Civil EngineeringSchool of EngineeringUniversity of GlasgowGlasgowUK
| | - Richard K. Russell
- Department of Paediatric GastroenterologyRoyal Hospital for ChildrenGlasgowUK
| | - Konstantinos Gerasimidis
- Human NutritionSchool of Medicine, Dentistry and NursingUniversity of GlasgowGlasgow Royal InfirmaryGlasgowUK
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30
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Torres MD, Flórez-Fernández N, Domínguez H. Integral Utilization of Red Seaweed for Bioactive Production. Mar Drugs 2019; 17:E314. [PMID: 31142051 PMCID: PMC6627364 DOI: 10.3390/md17060314] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 01/08/2023] Open
Abstract
The hydrocolloids carrageenan and agar are the major fraction industrially extracted and commercialized from red seaweeds. However, this type of macroalgae also contains a variety of components with nutritional, functional and biological properties. In the context of sustainability and bioeconomy, where the integral utilization of the natural resources is incentivized, the sequential separation and valorization of seaweed components with biological properties of interest for food, nutraceuticals, cosmeceuticals and pharmaceuticals is proposed. In this work, a review of the available conventional and alternative greener and efficient extraction for obtaining red seaweed bioactives is presented. The potential of emerging technologies for the production of valuable oligomers from carrageenan and agar is also commented, and finally, the sequential extraction of the constituent fractions is discussed.
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Affiliation(s)
- Maria Dolores Torres
- Department of Chemical Engineering, Faculty of Sciences, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain.
| | - Noelia Flórez-Fernández
- Department of Chemical Engineering, Faculty of Sciences, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain.
| | - Herminia Domínguez
- Department of Chemical Engineering, Faculty of Sciences, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain.
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31
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Inflammatory Bowel Diseases and Food Additives: To Add Fuel on the Flames! Nutrients 2019; 11:nu11051111. [PMID: 31109097 PMCID: PMC6567822 DOI: 10.3390/nu11051111] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/16/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) develop in genetically predisposed individuals in response to environmental factors. IBDs are concomitant conditions of industrialized societies, and diet is a potential culprit. Consumption of ultra-processed food has increased over the last decade in industrialized countries, and epidemiological studies have found associations between ultra-processed food consumption and chronic diseases. Further studies are now required to identify the potential culprit in ultra-processed food, such as a poor nutritional composition or the presence of food additives. In our review, we will focus on food additives, i.e., substances from packaging in contact with food, and compounds formed during production, processing, and storage. A literature search using PubMed from inception to January 2019 was performed to identify relevant studies on diet and/or food additive and their role in IBDs. Manuscripts published in English from basic science, epidemiological studies, or clinical trials were selected and reviewed. We found numerous experimental studies highlighting the key role of food additives in IBD exacerbation but epidemiological studies on food additives on IBD risk are still limited. As diet is a modifiable environmental risk factor, this may offer a scientific rationale for providing dietary advice for IBD patients.
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32
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David S, Fahoum L, Rozen G, Shaoul R, Shpigelman A, Meyron-Holtz EG, Lesmes U. Reply to the Comment on “Revisiting the carrageenan controversy: do we really understand the digestive fate and safety of carrageenan in our foods?” by M. Weiner and J. McKim, Food Funct., 2019, 10: DOI: 10.1039/C8FO01282B. Food Funct 2019; 10:1763-1766. [DOI: 10.1039/c9fo00018f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Diversity of food-grade carrageenan and rising levels of exposure to carrageenan mandate re-evaluation of its safety for the entire population.
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Affiliation(s)
- Shlomit David
- Laboratory of Chemistry of Foods and Bioactives
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
| | - Lulu Fahoum
- Laboratory of Molecular Nutrition
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
| | | | | | - Avi Shpigelman
- Laboratory of Novel food and Bioprocessing
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
| | - Esther G. Meyron-Holtz
- Laboratory of Molecular Nutrition
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
| | - Uri Lesmes
- Laboratory of Chemistry of Foods and Bioactives
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
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33
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McKim JM, Willoughby JA, Blakemore WR, Weiner ML. Clarifying the confusion between poligeenan, degraded carrageenan, and carrageenan: A review of the chemistry, nomenclature, and in vivo toxicology by the oral route. Crit Rev Food Sci Nutr 2018; 59:3054-3073. [DOI: 10.1080/10408398.2018.1481822] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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34
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Arrazuria R, Pérez V, Molina E, Juste RA, Khafipour E, Elguezabal N. Diet induced changes in the microbiota and cell composition of rabbit gut associated lymphoid tissue (GALT). Sci Rep 2018; 8:14103. [PMID: 30237566 PMCID: PMC6148544 DOI: 10.1038/s41598-018-32484-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/10/2018] [Indexed: 02/07/2023] Open
Abstract
The gut associated lymphoid tissue (GALT) is the largest immune organ of the body. Although the gut transient and mucosa-associated microbiota have been largely studied, the microbiota that colonizes the GALT has received less attention. The gut microbiome plays an important role in competitive exclusion of pathogens and in development and maturation of immunity. Diet is a key factor affecting the microbiota composition in the digestive tract. To investigate the relation between diet, microbiota and GALT, microbial and cell composition of vermiform appendix (VA) and sacculus rotundus (SR) were studied in two groups of New Zealand white rabbits on different diets. Diet shifted the lymphoid tissue microbiota affecting the presence and/or absence of certain taxa and their abundances. Immunohistochemistry revealed that a higher fibre content diet resulted in M cell hyperplasia and an increase of recently recruited macrophages, whereas T-cell levels remained unaltered in animals on both high fibre and standard diets. These findings indicate that diet has an impact on the microbiota and cell composition of the GALT, which could act as an important microbial recognition site where interactions with beneficial bacteria can take place favouring microbiota replacement after digestive dysregulations.
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Affiliation(s)
- Rakel Arrazuria
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain
| | - Valentín Pérez
- Department of Animal Health, Faculty of Veterinary Medicine, University of Leon, Leon, Spain
| | - Elena Molina
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain
| | - Ramón A Juste
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain.,SERIDA, Agri-food Research and Development Regional Service, Villaviciosa, Asturias, Spain
| | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Natalia Elguezabal
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain.
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35
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Levine A, Sigall Boneh R, Wine E. Evolving role of diet in the pathogenesis and treatment of inflammatory bowel diseases. Gut 2018; 67:1726-1738. [PMID: 29777041 DOI: 10.1136/gutjnl-2017-315866] [Citation(s) in RCA: 219] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/12/2022]
Abstract
Recent advances in basic and clinical science over the last 3 years have dramatically altered our appreciation of the role of diet in inflammatory bowel diseases (IBD). The marked increase in incidence of these diseases along with the important role of non-genetic susceptibility among patients with IBD has highlighted that these diseases have a strong environmental component. Progress in the field of microbiome and IBD has demonstrated that microbiome appears to play an important role in pathogenesis, and that diet may in turn impact the composition and functionality of the microbiome. Uncontrolled clinical studies have demonstrated that various dietary therapies such as exclusive enteral nutrition and newly developed exclusion diets might be potent tools for induction of remission at disease onset, for patients failing biologic therapy, as a treatment for disease complications and in reducing the need for surgery. We review these advances from bench to bedside, along with the need for better clinical trials to support these interventions.
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Affiliation(s)
- Arie Levine
- Pediatric Gastroenterology and Nutrition Unit, Edith Wolfson Medical Center, Holon, Israel.,Tel Aviv University, Tel Aviv, Israel
| | - Rotem Sigall Boneh
- Pediatric Gastroenterology and Nutrition Unit, Edith Wolfson Medical Center, Holon, Israel.,Tel Aviv University, Tel Aviv, Israel
| | - Eytan Wine
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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36
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White LS, Van den Bogaerde J, Kamm M. The gut microbiota: cause and cure of gut diseases. Med J Aust 2018; 209:312-317. [PMID: 30257633 DOI: 10.5694/mja17.01067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 04/20/2018] [Indexed: 12/26/2022]
Abstract
The gastrointestinal microbiota is emerging as a central factor in the pathogenesis of a range of gastrointestinal and hepatic disorders. Epidemiological studies, and experimental studies in animals and humans, have highlighted a likely causative role of this microbial community in the modern global epidemics of inflammatory bowel disease, non-alcoholic fatty liver disease, non-alcoholic steato-hepatitis, obesity and metabolic syndrome. New techniques for microbial culture and gene sequencing are enabling the identification of specific pathogens and protective organisms in these conditions. Factors that change the microbiota are being defined: dietary pattern, specific foods, food additives in processed food and drinks, such as emulsifiers and non-sugar sweeteners, and antibiotics. Microbiota changes in early life appear critical to the later development of a range of inflammatory disorders. For many of these conditions, the treatment paradigm will change, at least in part, from immune suppression and drug therapy to treatments that reshape the microbiota or restore its integrity. These treatments include dietary changes, specific microbial manipulation and faecal microbiota transplantation. A dialogue is needed regarding population strategies that target disease prevention. This will include how food is produced, what additives it contains, and how it is processed. Widespread use of antibiotics, from agricultural and veterinary to medicinal settings, needs more attention. At the individual level, microbial profiles may be able to predict who is at risk of disease when subjected to particular environmental influences, and what microbial restoration is needed to minimise risk.
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37
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Abstract
In the 21st century, urbanization represents a major demographic shift in developed and developing countries. Rapid urbanization in the developing world has been associated with an increasing incidence of several autoimmune diseases, including IBD. Patients with IBD exhibit a decrease in the diversity and richness of the gut microbiota, while urbanization attenuates the gut microbial diversity and might have a role in the pathogenesis of IBD. Environmental exposures during urbanization, including Westernization of diet, increased antibiotic use, pollution, improved hygiene status and early-life microbial exposure, have been shown to affect the gut microbiota. The disparate patterns of the gut microbiota composition in rural and urban areas offer an opportunity to understand the contribution of a 'rural microbiome' in potentially protecting against the development of IBD. This Perspective discusses the effect of urbanization and its surrogates on the gut microbiome (bacteriome, virome, mycobiome and helminths) in both human health and IBD and how such changes might be associated with the development of IBD.
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38
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Argüello H, Estellé J, Zaldívar-López S, Jiménez-Marín Á, Carvajal A, López-Bascón MA, Crispie F, O'Sullivan O, Cotter PD, Priego-Capote F, Morera L, Garrido JJ. Early Salmonella Typhimurium infection in pigs disrupts Microbiome composition and functionality principally at the ileum mucosa. Sci Rep 2018; 8:7788. [PMID: 29773876 PMCID: PMC5958136 DOI: 10.1038/s41598-018-26083-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 05/02/2018] [Indexed: 02/06/2023] Open
Abstract
Salmonella is a major foodborne pathogen which successfully infects animal species for human consumption such as swine. The pathogen has a battery of virulence factors which it uses to colonise and persist within the host. The host microbiota may play a role in resistance to, and may also be indirectly responsible from some of the consequences of, Salmonella infection. To investigate this, we used 16S rRNA metagenomic sequencing to determine the changes in the gut microbiota of pigs in response to infection by Salmonella Typhimurium at three locations: ileum mucosa, ileum content and faeces. Early infection (2 days post-infection) impacted on the microbiome diversity at the mucosa, reflected in a decrease in representatives of the generally regarded as desirable genera (i.e., Bifidobacterium and Lactobacillus). Severe damage in the epithelium of the ileum mucosa correlated with an increase in synergistic (with respect to Salmonella infection; Akkermansia) or opportunistically pathogenic bacteria (Citrobacter) and a depletion in anaerobic bacteria (Clostridium spp., Ruminococcus, or Dialliser). Predictive functional analysis, together with metabolomic analysis revealed changes in glucose and lipid metabolism in infected pigs. The observed changes in commensal healthy microbiota, including the growth of synergistic or potentially pathogenic bacteria and depletion of beneficial or competing bacteria, could contribute to the pathogen's ability to colonize the gut successfully. The findings from this study could be used to form the basis for further research aimed at creating intervention strategies to mitigate the effects of Salmonella infection.
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Affiliation(s)
- Héctor Argüello
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, 14047, Córdoba, Spain.
| | - Jordi Estellé
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Sara Zaldívar-López
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Ángeles Jiménez-Marín
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Ana Carvajal
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24071, León, Spain
| | - Mª Asunción López-Bascón
- Departamento de Química Analítica Universidad de Córdoba, Córdoba, CeiA3 Campus de Excelencia Agroalimentaria, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Fiona Crispie
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co., Cork, Ireland.,APC Microbiome Institute, Cork, Ireland
| | - Orla O'Sullivan
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co., Cork, Ireland.,APC Microbiome Institute, Cork, Ireland
| | - Paul D Cotter
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co., Cork, Ireland.,APC Microbiome Institute, Cork, Ireland
| | - Feliciano Priego-Capote
- Departamento de Química Analítica Universidad de Córdoba, Córdoba, CeiA3 Campus de Excelencia Agroalimentaria, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Luis Morera
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Juan J Garrido
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, 14047, Córdoba, Spain
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Younes M, Aggett P, Aguilar F, Crebelli R, Filipič M, Frutos MJ, Galtier P, Gott D, Gundert-Remy U, Kuhnle GG, Lambré C, Leblanc JC, Lillegaard IT, Moldeus P, Mortensen A, Oskarsson A, Stankovic I, Waalkens-Berendsen I, Woutersen RA, Wright M, Brimer L, Lindtner O, Mosesso P, Christodoulidou A, Ioannidou S, Lodi F, Dusemund B. Re-evaluation of carrageenan (E 407) and processed Eucheuma seaweed (E 407a) as food additives. EFSA J 2018; 16:e05238. [PMID: 32625873 PMCID: PMC7009739 DOI: 10.2903/j.efsa.2018.5238] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The present opinion deals with the re-evaluation of the safety of food-grade carrageenan (E 407) and processes Eucheuma seaweed (E 407a) used as food additives. Because of the structural similarities, the Panel concluded that processed Eucheuma seaweed can be included in the evaluation of food-grade carrageenan. Poligeenan (average molecular weight 10-20 kDa) has not been authorised as a food additive and is not used in any food applications. In its evaluation of carrageenan (E 407) and processed Eucheuma seaweed (E 407a), the Panel noted that the ADME database was sufficient to conclude that carrageenan was not absorbed intact; in a subchronic toxicity study performed with carrageenan almost complying with the EU specification for E 407 in rats, the no-observed-adverse-effect level (NOAEL) was 3,400-3,900 mg/kg body weight (bw) per day, the highest dose tested; no adverse effects have been detected in chronic toxicity studies with carrageenan in rats up to 7,500 mg/kg bw per day, the highest dose tested; there was no concern with respect to the carcinogenicity of carrageenan; carrageenan and processed Eucheuma seaweed did not raise a concern with respect to genotoxicity; the NOAEL of sodium and calcium carrageenan for prenatal developmental dietary toxicity studies were the highest dose tested; the safety of processed Eucheuma seaweed was sufficiently covered by the toxicological evaluation of carrageenan; data were adequate for a refined exposure assessment for 41 out of 79 food categories. However, the Panel noted uncertainties as regards the chemistry, the exposure assessment and biological and toxicological data. Overall, taking into account the lack of adequate data to address these uncertainties, the Panel concluded that the existing group acceptable daily intake (ADI) for carrageenan (E 407) and processed Eucheuma seaweed (E 407a) of 75 mg/kg bw per day should be considered temporary, while the database should be improved within 5 years after publication of this opinion.
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40
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Palmela C, Chevarin C, Xu Z, Torres J, Sevrin G, Hirten R, Barnich N, Ng SC, Colombel JF. Adherent-invasive Escherichia coli in inflammatory bowel disease. Gut 2018; 67:574-587. [PMID: 29141957 DOI: 10.1136/gutjnl-2017-314903] [Citation(s) in RCA: 309] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/20/2017] [Accepted: 10/28/2017] [Indexed: 02/06/2023]
Abstract
Intestinal microbiome dysbiosis has been consistently described in patients with IBD. In the last decades, Escherichia coli, and the adherent-invasive E coli (AIEC) pathotype in particular, has been implicated in the pathogenesis of IBD. Since the discovery of AIEC, two decades ago, progress has been made in unravelling these bacteria characteristics and its interaction with the gut immune system. The mechanisms of adhesion of AIEC to intestinal epithelial cells (via FimH and cell adhesion molecule 6) and its ability to escape autophagy when inside macrophages are reviewed here. We also explore the existing data on the prevalence of AIEC in patients with Crohn's disease and UC, and the association between the presence of AIEC and disease location, activity and postoperative recurrence. Finally, we highlight potential therapeutic strategies targeting AIEC colonisation of gut mucosa, including the use of phage therapy, bacteriocins and antiadhesive molecules. These strategies may open new avenues for the prevention and treatment of IBD in the future.
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Affiliation(s)
- Carolina Palmela
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.,Division of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
| | - Caroline Chevarin
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Zhilu Xu
- Department of Medicine and Therapeutics, Institute of Digestive Diseases, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Joana Torres
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.,Division of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
| | - Gwladys Sevrin
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Robert Hirten
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Nicolas Barnich
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Siew C Ng
- Department of Medicine and Therapeutics, Institute of Digestive Diseases, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Jean-Frederic Colombel
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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41
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Addendum to Weiner, M.L. (2016) Parameters and Pitfalls to Consider in the Conduct of Food Additive Research, Carrageenan as a Case Study. Food Chemical Toxicology 87, 31-44. Food Chem Toxicol 2017; 107:208-214. [DOI: 10.1016/j.fct.2017.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/09/2017] [Accepted: 06/11/2017] [Indexed: 12/14/2022]
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42
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Martin K, Gardner G. Home Enteral Nutrition: Updates, Trends, and Challenges. Nutr Clin Pract 2017; 32:712-721. [DOI: 10.1177/0884533617701401] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- Karen Martin
- Department of Neurology and Executive Health Program, UT Health San Antonio, San Antonio, Texas, USA
- Nutrition Support Program, American Medical Direct Infusion, San Antonio, Texas, USA
| | - Gabriela Gardner
- Digestive Disease Center, Memorial Hermann Hospital, Texas Medical Center, Houston, Texas, USA
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43
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Zhang S, Cao X, Huang H. Sampling Strategies for Three-Dimensional Spatial Community Structures in IBD Microbiota Research. Front Cell Infect Microbiol 2017; 7:51. [PMID: 28286741 PMCID: PMC5323387 DOI: 10.3389/fcimb.2017.00051] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 02/10/2017] [Indexed: 12/12/2022] Open
Abstract
Identifying intestinal microbiota is arguably an important task that is performed to determine the pathogenesis of inflammatory bowel diseases (IBD); thus, it is crucial to collect and analyze intestinally-associated microbiota. Analyzing a single niche to categorize individuals does not enable researchers to comprehensively study the spatial variations of the microbiota. Therefore, characterizing the spatial community structures of the inflammatory bowel disease microbiome is critical for advancing our understanding of the inflammatory landscape of IBD. However, at present there is no universally accepted consensus regarding the use of specific sampling strategies in different biogeographic locations. In this review, we discuss the spatial distribution when screening sample collections in IBD microbiota research. Here, we propose a novel model, a three-dimensional spatial community structure, which encompasses the x-, y-, and z-axis distributions; it can be used in some sampling sites, such as feces, colonoscopic biopsy, the mucus gel layer, and oral cavity. On the basis of this spatial model, this article also summarizes various sampling and processing strategies prior to and after DNA extraction and recommends guidelines for practical application in future research.
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Affiliation(s)
- Shaocun Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin UniversityTianjin, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin UniversityTianjin, China; Collaborative Innovation Center of Chemical Science and EngineeringTianjin, China
| | - Xiaocang Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital; Tianjin Medical University Tianjin, China
| | - He Huang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin UniversityTianjin, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin UniversityTianjin, China; Collaborative Innovation Center of Chemical Science and EngineeringTianjin, China
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Munyaka PM, Rabbi MF, Khafipour E, Ghia JE. Acute dextran sulfate sodium (DSS)-induced colitis promotes gut microbial dysbiosis in mice. J Basic Microbiol 2016; 56:986-98. [PMID: 27112251 DOI: 10.1002/jobm.201500726] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 03/18/2016] [Indexed: 12/20/2022]
Abstract
UNLABELLED The most widely used and characterized experimental model of ulcerative colitis (UC) is the epithelial erosion, dextran sulfate sodium (DSS)-induced colitis, which is developed by administration of DSS in drinking water. We investigated fecal and colonic mucosa microbial composition and functional changes in mice treated with DSS. C57Bl/6 mice received 5% DSS in drinking water for 5 days. Inflammation was evaluated clinically and by analysis of colonic tissue cytokine levels and C-reactive protein (CRP) in the serum. Colonic mucosa and fecal samples were used for DNA extraction and the V4 region of bacterial 16S rRNA gene was subjected to MiSeq Illumina sequencing. Alpha- and beta-diversities, and compositional differences at phylum and genus levels were determined, and bacterial functional pathways were predicted. DSS increased disease severity, serum CRP and cytokines IL-1β and IL-6, but decreased bacterial species richness, and shifted bacterial community composition. Bacteroides, Turicibacter, Escherichia, Clostridium, Enterobacteriaceae, Clostridiaceae, Bacteroidaceae, Bacteroidales, among other taxa were associated with DSS treatment in fecal and colonic samples. Also, DSS altered microbial functional pathways in both colonic mucosa and fecal samples. CONCLUSIONS The development of colitis in DSS model was accompanied with reduced microbial diversity and dysbiosis of gut microbiota at lower taxonomical levels.
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Affiliation(s)
- Peris Mumbi Munyaka
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada.,Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada. .,Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada.
| | - Jean-Eric Ghia
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada. .,Department of Internal Medicine, Section of Gastroenterology, University of Manitoba, Winnipeg, Manitoba, Canada. .,Inflammatory Bowel Disease Clinical & Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada.
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Arrazuria R, Elguezabal N, Juste RA, Derakhshani H, Khafipour E. Mycobacterium avium Subspecies paratuberculosis Infection Modifies Gut Microbiota under Different Dietary Conditions in a Rabbit Model. Front Microbiol 2016; 7:446. [PMID: 27065994 PMCID: PMC4815054 DOI: 10.3389/fmicb.2016.00446] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/18/2016] [Indexed: 12/18/2022] Open
Abstract
Mycobacterium avium subspecies paratuberculosis (MAP) the causative agent of paratuberculosis, produces a chronic granulomatous inflammation of the gastrointestinal tract of ruminants. It has been recently suggested that MAP infection may be associated with dysbiosis of intestinal microbiota in ruminants. Since diet is one of the key factors affecting the balance of microbial populations in the digestive tract, we intended to evaluate the effect of MAP infection in a rabbit model fed a regular or high fiber diet during challenge. The composition of microbiota of the cecal content and the sacculus rotundus was studied in 20 New Zealand white female rabbits. The extracted DNA was subjected to paired-end Illumina sequencing of the V3-V4 hypervariable region of the 16S rRNA gene for microbiota analysis. Microbial richness (Chao1) in the cecal content was significantly increased by MAP infection in regular diet rabbits (p = 0.0043) and marginally increased (p = 0.0503) in the high fiber group. Analysis of beta-diversity showed that MAP infection produces deeper changes in the microbiota of sacculus rotundus than in the cecal content. A lower abundance of Proteobacteria in the cecal content of infected animals fed the high fiber diet and also lower abundance of Bacteroidetes in the sacculus rotundus of infected animals fed the regular diet were observed. Based on OPLS-DA analysis, we observed that some bacteria repeatedly appear to be positively associated with infection in different samples under different diets (families Dehalobacteriaceae, Coriobacteriaceae, and Mogibacteriaceae; genus Anaerofustis). The same phenomenon was observed with some of the bacteria negatively associated with MAP infection (genera Anaerostipes and Coprobacillus). However, other groups of bacteria (Enterobacteriaceae family and ML615J-28 order) were positively associated with infection in some circumstances and negatively associated with infection in others. Data demonstrate that MAP infection and diet changes do interact and result in shifts in the microbiota of the cecal content and sacculus rotundus of rabbits.
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Affiliation(s)
- Rakel Arrazuria
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario Derio, Spain
| | - Natalia Elguezabal
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario Derio, Spain
| | - Ramon A Juste
- Department of Animal Health, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario Derio, Spain
| | - Hooman Derakhshani
- Department of Animal Science, University of Manitoba, Winnipeg MB, Canada
| | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, WinnipegMB, Canada; Department of Medical Microbiology, University of Manitoba, WinnipegMB, Canada
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