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Ghali ENHK, Pranav, Chauhan SC, Yallapu MM. Inulin-based formulations as an emerging therapeutic strategy for cancer: A comprehensive review. Int J Biol Macromol 2024; 259:129216. [PMID: 38185294 PMCID: PMC10922702 DOI: 10.1016/j.ijbiomac.2024.129216] [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: 07/07/2023] [Revised: 12/06/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
Cancer stands as the second leading cause of death in the United States (US). Most chemotherapeutic agents exhibit severe adverse effects that are attributed to exposure of drugs to off-target tissues, posing a significant challenge in cancer therapy management. In recent years, inulin, a naturally occurring prebiotic fiber has gained substantial attention for its potential in cancer treatment owing to its multitudinous health values. Its distinctive structure, stability, and nutritional properties position it as an effective adjuvant and carrier for drug delivery in cancer therapy. To address some of the above unmet clinical issues, this review summarizes the recent efforts towards the development of inulin-based nanomaterials and nanocomposites for healthcare applications with special emphasis on the multifunctional role of inulin in cancer therapy as a synergist, signaling molecule, immunomodulatory and anticarcinogenic molecule. Furthermore, the review provides a concise overview of ongoing clinical trials and observational studies associated with inulin-based therapy. In conclusion, the current review offers insights on the significant role of inulin interventions in exploring its potential as a therapeutic agent to treat cancer.
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Affiliation(s)
- Eswara Naga Hanuma Kumar Ghali
- Department of Immunology and Microbiology, School of Medicine, The University of Texas Rio Grande Valley, McAllen, TX 78504, USA; South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Pranav
- Department of Immunology and Microbiology, School of Medicine, The University of Texas Rio Grande Valley, McAllen, TX 78504, USA; South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Subhash C Chauhan
- Department of Immunology and Microbiology, School of Medicine, The University of Texas Rio Grande Valley, McAllen, TX 78504, USA; South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA.
| | - Murali M Yallapu
- Department of Immunology and Microbiology, School of Medicine, The University of Texas Rio Grande Valley, McAllen, TX 78504, USA; South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA.
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Qin YQ, Wang LY, Yang XY, Xu YJ, Fan G, Fan YG, Ren JN, An Q, Li X. Inulin: properties and health benefits. Food Funct 2023; 14:2948-2968. [PMID: 36876591 DOI: 10.1039/d2fo01096h] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Inulin, a soluble dietary fiber, is widely found in more than 36 000 plant species as a reserve polysaccharide. The primary sources of inulin, include Jerusalem artichoke, chicory, onion, garlic, barley, and dahlia, among which Jerusalem artichoke tubers and chicory roots are often used as raw materials for inulin production in the food industry. It is universally acknowledged that inulin as a prebiotic has an outstanding effect on the regulation of intestinal microbiota via stimulating the growth of beneficial bacteria. In addition, inulin also exhibits excellent health benefits in regulating lipid metabolism, weight loss, lowering blood sugar, inhibiting the expression of inflammatory factors, reducing the risk of colon cancer, enhancing mineral absorption, improving constipation, and relieving depression. In this review paper, we attempt to present an exhaustive overview of the function and health benefits of inulin.
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Affiliation(s)
- Yu-Qing Qin
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Liu-Yan Wang
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Xin-Yu Yang
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Yi-Jie Xu
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Gang Fan
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Yan-Ge Fan
- Institute of Chemistry Co. Ltd, Henan Academy of Sciences, Zhengzhou 450002, China
| | - Jing-Nan Ren
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Qi An
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
| | - Xiao Li
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, 430070, China.
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Feng X, Li Z, Guo W, Hu Y. The effects of traditional Chinese medicine and dietary compounds on digestive cancer immunotherapy and gut microbiota modulation: A review. Front Immunol 2023; 14:1087755. [PMID: 36845103 PMCID: PMC9945322 DOI: 10.3389/fimmu.2023.1087755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/17/2023] [Indexed: 02/09/2023] Open
Abstract
Digestive tract-related cancers account for four of the top ten high-risk cancers worldwide. In recent years, cancer immunotherapy, which exploits the innate immune system to attack tumors, has led to a paradigm shifts in cancer treatment. Gut microbiota modification has been widely used to regulate cancer immunotherapy. Dietary compounds and traditional Chinese medicine (TCM) can alter the gut microbiota and its influence on toxic metabolite production, such as the effect of iprindole on lipopolysaccharide (LPS), and involvement in various metabolic pathways that are closely associated with immune reactions. Therefore, it is an effective strategy to explore new immunotherapies for gastrointestinal cancer to clarify the immunoregulatory effects of different dietary compounds/TCMs on intestinal microbiota. In this review, we have summarized recent progress regarding the effects of dietary compounds/TCMs on gut microbiota and their metabolites, as well as the relationship between digestive cancer immunotherapy and gut microbiota. We hope that this review will act as reference, providing a theoretical basis for the clinical immunotherapy of digestive cancer via gut microbiota modulation.
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Affiliation(s)
- Xiaoli Feng
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Zhenhao Li
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Weihong Guo
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China,*Correspondence: Weihong Guo, ; Yanfeng Hu,
| | - Yanfeng Hu
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China,*Correspondence: Weihong Guo, ; Yanfeng Hu,
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Oliero M, Hajjar R, Cuisiniere T, Fragoso G, Calvé A, Santos MM. Inulin impacts tumorigenesis promotion by colibactin-producing Escherichia coli in ApcMin/+ mice. Front Microbiol 2023; 14:1067505. [PMID: 36819017 PMCID: PMC9932902 DOI: 10.3389/fmicb.2023.1067505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction The prebiotic inulin has previously shown both protective and tumor-promoting effects in colorectal cancer (CRC). These inconsistencies may be due to the gut microbial composition as several bacteria have been associated with CRC. Specifically, polyketide synthase-positive (pks+) Escherichia coli promotes carcinogenesis and facilitates CRC progression through the production of colibactin, a genotoxin that induces double-strand DNA breaks (DSBs). We investigated whether colibactin-producing Escherichia coli changed the protection conferred by inulin against tumor growth and progression using the ApcMin/+ mouse model of CRC. Methods Mice received a 2% dextran sodium sulfate (DSS) solution followed by oral gavage with the murine pks + E. coli strain NC101 (EcNC101) and were fed a diet supplemented with 10% cellulose as control or 10% inulin for 4 weeks. Results Inulin supplementation led to increase EcNC101 colonization compared to mice receiving the control diet. The increased colonization of EcNC101 resulted in more DSBs, tumor burden, and tumor progression in ApcMin/+ mice. The tumorigenic effect of EcN101 in ApcMin/+ mice mediated by inulin was dependent on colibactin production. Pasteurized E. coli Nissle 1917 (EcN), a probiotic, suppressed the inulin-driven EcNC101 expansion and impacted tumor progression. Discussion Our results suggest that the presence of pks + E. coli influences the outcome of inulin supplementation in CRC and that microbiota-targeted interventions may mitigate this effect. Given the prevalence of pks + E. coli in both healthy and CRC populations and the importance of a fiber-rich diet, inulin supplementation in individuals colonized with pks + bacteria should be considered with caution.
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Affiliation(s)
- Manon Oliero
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Roy Hajjar
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Department of Surgery, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Thibault Cuisiniere
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Gabriela Fragoso
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Annie Calvé
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Manuela M. Santos
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada,*Correspondence: Manuela M. Santos, ✉
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Chen M, Lin W, Li N, Wang Q, Zhu S, Zeng A, Song L. Therapeutic approaches to colorectal cancer via strategies based on modulation of gut microbiota. Front Microbiol 2022; 13:945533. [PMID: 35992678 PMCID: PMC9389535 DOI: 10.3389/fmicb.2022.945533] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/14/2022] [Indexed: 11/27/2022] Open
Abstract
Colorectal cancer (CRC) ranks third in terms of global incidence and second in terms of death toll among malignant tumors. Gut microbiota are involved in the formation, development, and responses to different treatments of CRC. Under normal physiological conditions, intestinal microorganisms protect the intestinal mucosa, resist pathogen invasion, and regulate the proliferation of intestinal mucosal cells via a barrier effect and inhibition of DNA damage. The composition of gut microbiota and the influences of diet, drugs, and gender on the composition of the intestinal flora are important factors in the early detection of CRC and prediction of the results of CRC treatment. Regulation of gut microbiota is one of the most promising new strategies for CRC treatment, and it is essential to clarify the effect of gut microbiota on CRC and its possible mechanisms to facilitate the prevention and treatment of CRC. This review discusses the role of gut microbiota in the pathogenesis of CRC, the potential of gut microbiota as biomarkers for CRC, and therapeutic approaches to CRC based on the regulation of gut microbiota. It might provide new ideas for the use of gut microbiota in the prevention and treatment of CRC in the near future and thus reduce the incidence of CRC.
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Affiliation(s)
- Maohua Chen
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Lin
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Nan Li
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Wang
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shaomi Zhu
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Anqi Zeng
- Institute of Translational Pharmacology and Clinical Application, Sichuan Academy of Chinese Medical Sciences, Chengdu, China
- Anqi Zeng,
| | - Linjiang Song
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Linjiang Song,
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Antitumor bioactivity and gut microbiota modulation of polyhydroxybutyrate (PHB) in a rat animal model for colorectal cancer. Int J Biol Macromol 2022; 203:638-649. [PMID: 35090944 DOI: 10.1016/j.ijbiomac.2022.01.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 12/19/2022]
Abstract
Polyhydroxybutyrate (PHB) is a non-toxic polyhydroxyalkanoate polymer produced by several microorganisms, widely used as a biological substitute for plastics derived from fossil hydrocarbons. In this work, PHB polymer has been tested in an animal model for colorectal cancer. In the animal model, PHB has been able to reduce the number of polyps by 48,1%, and the tumoral extension area by 58,1%. Also, PHB induces a selective increase in beneficial gut bacterial taxons in this animal model, and a selective reduction in pro-inflammatory taxons, demonstrating its value as a nutraceutical compound. This antitumor effect is caused by gut production of 3-hydroxybutyrate and butyrate. In this animal model, 3-hydroxybutyrate is also observed in plasma and in brain tissue, after PHB consumption, making PHB supplementation interesting as a bioactive compound in other extraintestinal conditions, as 3-hydroxybutyrate has been reported to enhance brain and cognitive function, cardiac performance, appetite suppression and diabetes. Therefore, PHB could be postulated as an interesting non-polysaccharide antitumor prebiotic, paving the way towards its future use in functional foods.
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He Y, Wang B, Wen L, Wang F, Yu H, Chen D, Su X, Zhang C. Effects of dietary fiber on human health. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Man S, Liu T, Yao Y, Lu Y, Ma L, Lu F. Friend or foe? The roles of inulin-type fructans. Carbohydr Polym 2021; 252:117155. [DOI: 10.1016/j.carbpol.2020.117155] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/11/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023]
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9
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Chen J, Vitetta L. The Role of Butyrate in Attenuating Pathobiont-Induced Hyperinflammation. Immune Netw 2020; 20:e15. [PMID: 32395367 PMCID: PMC7192831 DOI: 10.4110/in.2020.20.e15] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 01/09/2020] [Accepted: 01/19/2020] [Indexed: 12/17/2022] Open
Abstract
An excessive hyperinflammatory response-caused septic shock is a major medical problem that is associated with pathogenic bacterial infections leading to high mortality rates. The intestinal microbiota and the associated elaborated metabolites such as short chain fatty acid butyrate have been shown to relieve pathogenic bacterial-caused acute inflammation. Butyrate can down-regulate inflammation by inhibiting the growth of pathobionts, increasing mucosal barrier integrity, encouraging obligate anaerobic bacterial dominance and decreasing oxygen availability in the gut. Butyrate can also decrease excessive inflammation through modulation of immune cells such as increasing functionalities of M2 macrophages and regulatory T cells and inhibiting infiltration by neutrophils. Therefore, various approaches can be used to increase butyrate to relieve pathogenic bacterial-caused hyperinflammation. In this review we summarize the roles of butyrate in attenuating pathogenic bacterial-caused hyperinflammatory responses and discuss the associated plausible mechanisms.
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Affiliation(s)
| | - Luis Vitetta
- Medlab Clinical Ltd, Sydney 2015, Australia
- The University of Sydney, Faculty of Medicine and Health, Sydney 2006, Australia
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10
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Mohanty D, Misra S, Mohapatra S, Sahu PS. Prebiotics and synbiotics: Recent concepts in nutrition. FOOD BIOSCI 2018. [DOI: 10.1016/j.fbio.2018.10.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Vitetta L, Vitetta G, Hall S. Immunological Tolerance and Function: Associations Between Intestinal Bacteria, Probiotics, Prebiotics, and Phages. Front Immunol 2018; 9:2240. [PMID: 30356736 PMCID: PMC6189397 DOI: 10.3389/fimmu.2018.02240] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022] Open
Abstract
Post-birth there is a bacterial assault on all mucosal surfaces. The intestinal microbiome is an important participant in health and disease. The pattern of composition and concentration of the intestinal microbiome varies greatly. Therefore, achieving immunological tolerance in the first 3-4 years of life is critical for maintaining health throughout a lifetime. Probiotic bacteria are organisms that afford beneficial health effects to the host and in certain instances may protect against the development of disease. The potential benefits of modifying the composition of the intestinal microbial cohort for therapeutic benefit is evident in the use in high risks groups such as premature infants, children receiving antibiotics, rotavirus infections in non-vaccinated children and traveler's diarrhea in adults. Probiotics and prebiotics are postulated to have immunomodulating capabilities by influencing the intestinal microbial cohort and dampening the activity of pathobiont intestinal microbes, such as Klebsiella pneumonia and Clostridia perfringens. Lactobacilli and Bifidobacteria are examples of probiotics found in the large intestine and so far, the benefits afforded to probiotics have varied in efficacy. Most likely the efficacy of probiotic bacteria has a multifactorial dependency, namely on a number of factors that include agents used, the dose, the pattern of dosing, and the characteristics of the host and the underlying luminal microbial environment and the activity of bacteriophages. Bacteriophages, are small viruses that infect and lyse intestinal bacteria. As such it can be posited that these viruses display an effective local protective control mechanism for the intestinal barrier against commensal pathobionts that indirectly may assist the host in controlling bacterial concentrations in the gut. A co-operative activity may be envisaged between the intestinal epithelia, mucosal immunity and the activity of bacteriophages to eliminate pathobiots, highlighting the potential role of bacteriophages in assisting with maintaining intestinal homeostasis. Hence bacteriophage local control of inflammation and immune responses may be an additional immunological defense mechanism that exploits bacteriophage-mucin glycoprotein interactions that controls bacterial diversity and abundance in the mucin layers of the gut. Moreover, and importantly the efficacy of probiotics may be dependent on the symbiotic incorporation of prebiotics, and the abundance and diversity of the intestinal microbiome encountered. The virome may be an important factor that determines the efficacy of some probiotic formulations.
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Affiliation(s)
- Luis Vitetta
- Discipline of Pharmacology, Faculty of Medicine and Health, School of Medicine, The University of Sydney, Camperdown, NSW, Australia
- Medlab Clinical Ltd., Sydney, NSW, Australia
| | | | - Sean Hall
- Medlab Clinical Ltd., Sydney, NSW, Australia
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12
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A critical review on phytochemical profile and health promoting effects of mung bean ( Vigna radiata ). FOOD SCIENCE AND HUMAN WELLNESS 2018. [DOI: 10.1016/j.fshw.2017.11.002] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ravn-Haren G, Krath BN, Markowski J, Poulsen M, Hansen M, Kołodziejczyk K, Kosmala M, Dragsted LO. Apple pomace improves gut health in Fisher rats independent of seed content. Food Funct 2018; 9:2931-2941. [DOI: 10.1039/c7fo01932g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Apple pomace with seeds had no adverse effects in a 4-week feeding study in rats and retained its functionality.
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Affiliation(s)
- Gitte Ravn-Haren
- Division for Diet
- Disease Prevention and Toxicology
- National Food Institute
- Technical University of Denmark
- Kgs. Lyngby
| | - Britta N. Krath
- Department of Nutrition
- Exercise and Sports
- University of Copenhagen
- Frederiksberg
- Denmark
| | | | - Morten Poulsen
- Division for Diet
- Disease Prevention and Toxicology
- National Food Institute
- Technical University of Denmark
- Kgs. Lyngby
| | - Max Hansen
- Division for Risk Assessment and Nutrition
- National Food Institute
- Technical University of Denmark
- Kgs. Lyngby
- Denmark
| | | | - Monika Kosmala
- Institute of Food Technology and Analysis
- Lodz University of Technology
- Lodz
- Poland
| | - Lars O. Dragsted
- Department of Nutrition
- Exercise and Sports
- University of Copenhagen
- Frederiksberg
- Denmark
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Chemopreventive Potential of Raw and Roasted Pistachios Regarding Colon Carcinogenesis. Nutrients 2017; 9:nu9121368. [PMID: 29258268 PMCID: PMC5748818 DOI: 10.3390/nu9121368] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/05/2017] [Accepted: 12/12/2017] [Indexed: 12/12/2022] Open
Abstract
Pistachios are rich in health-promoting bioactive compounds such as B vitamins, γ-tocopherol, polyphenols and dietary fiber, which could contribute to the reduction of colon cancer risk in terms of chemoprevention (Fischer, S.; Glei, M. Health-Potential of Nuts. Ernaehrungs Umsch. Int. 2013, 60, 206-215.). Since pistachios are often consumed roasted, the present study aims at investigating the influence of different roasting conditions (RC) on potential chemopreventive effects of pistachios in colon adenoma cells such as growth and apoptosis, genotoxic- and anti-genotoxic effects and modulation of gene expression of detoxifying enzymes (CAT, SOD2, GPx1, and GSTP1). Fermentation supernatants (FS) were obtained from raw and roasted (RC1 = 141 °C/25 min, RC2 = 160 °C/15 min and RC3 = 185 °C/21 min) pistachios after in vitro fermentation. FS of pistachios significantly reduced LT97 cell growth in a time- and dose-dependent manner. Compared to the blank control, pistachio FS (2.5%) led to a significant average reduction of H₂O₂-induced DNA damage (1.5-fold). Levels of CAT mRNA were significantly increased (1.3-fold, on average for 5% FS). Pistachio FS (5%) significantly increased the number of early apoptotic cells (up to 2.1-fold) and levels of caspase-3 activities (up to 6.9-fold). The present results confirm a chemopreventive potential of pistachios, which is mediated by growth inhibition, induction of apoptosis and anti-genotoxic effects, as well as induction of CAT. These effects remain mostly unaffected by roasting.
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15
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In vitro–fermented raw and roasted walnuts induce expression of CAT and GSTT2 genes, growth inhibition, and apoptosis in LT97 colon adenoma cells. Nutr Res 2017; 47:72-80. [DOI: 10.1016/j.nutres.2017.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/18/2017] [Accepted: 09/13/2017] [Indexed: 12/21/2022]
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16
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Huang G, Khan I, Li X, Chen L, Leong W, Ho LT, Hsiao WLW. Ginsenosides Rb3 and Rd reduce polyps formation while reinstate the dysbiotic gut microbiota and the intestinal microenvironment in Apc Min/+ mice. Sci Rep 2017; 7:12552. [PMID: 28970547 PMCID: PMC5624945 DOI: 10.1038/s41598-017-12644-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/13/2017] [Indexed: 12/20/2022] Open
Abstract
Studies showed that manipulation of gut microbiota (GM) composition through the treatment of prebiotics could be a novel preventive measure against colorectal cancer (CRC) development. In this study, for the first time, we assessed the non-toxic doses of the triterpene saponins (ginsenoside-Rb3 and ginsenoside-Rd) - as prebiotics - that effectively reinstated the dysbiotic-gut microbial composition and intestinal microenvironment in an ApcMin/+ mice model. Rb3 and Rd effectively reduced the size and the number of the polyps that accompanied with the downregulation of oncogenic signaling molecules (iNOS, STAT3/pSTAT3, Src/pSrc). Both the compounds improved the gut epithelium by promoting goblet and Paneth cells population and reinstating the E-cadherin and N-Cadherin expression. Mucosal immunity remodeled with increased in anti-inflammatory cytokines and reduced in pro-inflammatory cytokines in treated mice. All these changes were correlating with the promoted growth of beneficial bacteria such as Bifidobacterium spp., Lactobacillus spp., Bacteroides acidifaciens, and Bacteroides xylanisolvens. Whereas, the abundance of cancer cachexia associated bacteria, such as Dysgonomonas spp. and Helicobacter spp., was profoundly lower in Rb3/Rd-treated mice. In conclusion, ginsenosides Rb3 and Rd exerted anti-cancer effects by holistically reinstating mucosal architecture, improving mucosal immunity, promoting beneficial bacteria, and down-regulating cancer-cachexia associated bacteria.
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Affiliation(s)
- Guoxin Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Imran Khan
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Xiaoang Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Lei Chen
- Department of Genetics, Rutgers University, New Brunswick, USA
| | - Waikit Leong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Leung Tsun Ho
- Department of Pathology, University Hospital, Macau University of Science and Technology, Macau, China
| | - W L Wendy Hsiao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
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Grancieri M, Costa NMB, Vaz Tostes MDG, de Oliveira DS, Nunes LDC, Marcon LDN, Veridiano TA, Viana ML. Yacon flour (Smallanthus sonchifolius) attenuates intestinal morbidity in rats with colon cancer. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.08.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Qamar TR, Iqbal S, Syed F, Nasir M, Rehman H, Iqbal MA, Liu RH. Impact of Novel Prebiotic Galacto-Oligosaccharides on Various Biomarkers of Colorectal Cancer in Wister Rats. Int J Mol Sci 2017; 18:E1785. [PMID: 28858205 PMCID: PMC5618473 DOI: 10.3390/ijms18091785] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer deaths around the globe. Bioactive food ingredients such as prebiotics have protective potential in colon cancer. Data on galacto-oligosaccharides (GalOS) against CRC are very limited and GalOS used in this study have β-1,6 and β-1,3 as major glycosidic linkages and, to our best knowledge, were never used before against any cancer treatment. This study aims to investigate the protective role of novel GalOS against various biomarkers of CRC including aberrant crypt foci (ACF), bacterial enzymes and short chain fatty acids (SCFA) in a rodent model induced with 1,2-dimethylhydrazine dihydrochloride (DMH). Inulin group was taken as positive control in present study to compare novel GalOS protective effects. GalOS doses of 76-151 mg and inulin doses of 114 mg were given to different groups treated with DMH. Results showed that ACF formation was significantly (p ≤ 0.05) less in high dose GalOS group (27.3%). GalOS also had protective effects against DMH-induced body weight loss and showed higher level of cecal and fecal SCFA (acetate, propionate and butyrate). High doses of GalOS also resulted in significant (p ≤ 0.05) reduction of bacterial enzymatic activities. Increased populations of beneficial bacteria (bifidobacteria and lactobacilli) and decreased concentrations of harmful bacteria were observed in all prebiotics treatment groups. It can be concluded that novel GalOS exhibit robust protective activity against ACF formation in vivo.
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Affiliation(s)
- Tahir Rasool Qamar
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Sanaullah Iqbal
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Fatima Syed
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Muhammad Nasir
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Habib Rehman
- Department of Physiology, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Muhammad Aamir Iqbal
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Punjab 54000, Pakistan.
| | - Rui Hai Liu
- Department of Food Science, Cornell University, Ithaca, NY 14850, USA.
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Schlörmann W, Fischer S, Saupe C, Dinc T, Lorkowski S, Glei M. Influence of roasting on the chemopreventive potential of in vitro fermented almonds in LT97 colon adenoma cells. Int J Food Sci Nutr 2017; 69:52-63. [PMID: 28583046 DOI: 10.1080/09637486.2017.1334140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The consumption of almonds may contribute to the prevention of colon cancer due to their unique composition of health promoting compounds. Since almonds are often consumed roasted, the impact of different roasting (R) conditions (R1 = 139.2 °C/25 min, R2 = 161.5 °C/20 min and R3 = 170.8 °C/15 min) on chemopreventive effects of in vitro-fermented almonds was analysed in LT97 colon adenoma cells. Fermentation supernatants (FS) of raw and roasted almonds had no genotoxic effects. FS obtained from raw or mildly roasted almonds (R1) significantly increased mRNA levels of CAT (4.6-fold), SOD2 (5.6-fold) and GSTP1 (3.9-fold) but not of GPx1. FS of almonds significantly reduced the growth of LT97 cells in a time- and dose-dependent manner. Treatment with 5% almonds FS increased the number of early apoptotic cells (17.4%, on average) and caspase-3 activity (4.9-fold, on average). The results indicate a chemopreventive potential of in vitro-fermented almonds which is largely independent of the roasting process.
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Affiliation(s)
- Wiebke Schlörmann
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany.,b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany
| | - Sonja Fischer
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Christian Saupe
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Tülin Dinc
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Stefan Lorkowski
- b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany.,c Department of Nutritional Biochemistry and Physiology , Friedrich Schiller University Jena, Institute of Nutrition , Jena , Germany
| | - Michael Glei
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany.,b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany
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Nurdin SU, Le Leu RK, Young GP, Stangoulis JCR, Christophersen CT, Abbott CA. Analysis of the Anti-Cancer Effects of Cincau Extract (Premna oblongifolia Merr) and Other Types of Non-Digestible Fibre Using Faecal Fermentation Supernatants and Caco-2 Cells as a Model of the Human Colon. Nutrients 2017; 9:nu9040355. [PMID: 28368356 PMCID: PMC5409694 DOI: 10.3390/nu9040355] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/16/2017] [Accepted: 03/29/2017] [Indexed: 02/04/2023] Open
Abstract
Green cincau (Premna oblongifolia Merr) is an Indonesian food plant with a high dietary fibre content. Research has shown that dietary fibre mixtures may be more beneficial for colorectal cancer prevention than a single dietary fibre type. The aim of this study was to investigate the effects of green cincau extract on short chain fatty acid (SCFA) production in anaerobic batch cultures inoculated with human faecal slurries and to compare these to results obtained using different dietary fibre types (pectin, inulin, and cellulose), singly and in combination. Furthermore, fermentation supernatants (FSs) were evaluated in Caco-2 cells for their effect on cell viability, differentiation, and apoptosis. Cincau increased total SCFA concentration by increasing acetate and propionate, but not butyrate concentration. FSs from all dietary fibre sources, including cincau, reduced Caco-2 cell viability. However, the effects of all FSs on cell viability, cell differentiation, and apoptosis were not simply explainable by their butyrate content. In conclusion, products of fermentation of cincau extracts induced cell death, but further work is required to understand the mechanism of action. This study demonstrates for the first time that this Indonesian traditional source of dietary fibre may be protective against colorectal cancer.
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Affiliation(s)
- Samsu U Nurdin
- School of Biological Sciences, Flinders University, Adelaide, SA 5042, Australia.
- Department of Agricultural Product Technology, Lampung University, Bandar Lampung 35145, Indonesia.
- Flinders Centre for Innovation in Cancer, Adelaide, SA 5042, Australia.
| | - Richard K Le Leu
- Flinders Centre for Innovation in Cancer, Adelaide, SA 5042, Australia.
- CSIRO Food and Nutrition, Adelaide, SA 5000, Australia.
| | - Graeme P Young
- Flinders Centre for Innovation in Cancer, Adelaide, SA 5042, Australia.
| | - James C R Stangoulis
- School of Biological Sciences, Flinders University, Adelaide, SA 5042, Australia.
| | - Claus T Christophersen
- CSIRO Food and Nutrition, Adelaide, SA 5000, Australia.
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia.
| | - Catherine A Abbott
- School of Biological Sciences, Flinders University, Adelaide, SA 5042, Australia.
- Flinders Centre for Innovation in Cancer, Adelaide, SA 5042, Australia.
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Schlörmann W, Lamberty J, Lorkowski S, Ludwig D, Mothes H, Saupe C, Glei M. Chemopreventive potential ofin vitrofermented nuts in LT97 colon adenoma and primary epithelial colon cells. Mol Carcinog 2017; 56:1461-1471. [DOI: 10.1002/mc.22606] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/29/2016] [Accepted: 12/15/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Wiebke Schlörmann
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
| | - Julia Lamberty
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Stefan Lorkowski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
- Department of Nutritional Biochemistry and Physiology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Diana Ludwig
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Henning Mothes
- Department of General; Visceral and Vascular Surgery, Friedrich Schiller University Jena; Jena Germany
| | - Christian Saupe
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Michael Glei
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
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Sharma M, Shukla G. Metabiotics: One Step ahead of Probiotics; an Insight into Mechanisms Involved in Anticancerous Effect in Colorectal Cancer. Front Microbiol 2016; 7:1940. [PMID: 27994577 PMCID: PMC5133260 DOI: 10.3389/fmicb.2016.01940] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 11/18/2016] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer is closely associated with environment, diet and lifestyle. Normally it is treated with surgery, radiotherapy or chemotherapy but increasing systemic toxicity, resistance and recurrence is prompting scientists to devise new potent and safer alternate prophylactic or therapeutic strategies. Among these, probiotics, prebiotics, synbiotics, and metabiotics are being considered as the promising candidates. Metabiotics or probiotic derived factors can optimize various physiological functions of the host and offer an additional advantage to be utilized even in immunosuppressed individuals. Interestingly, anti colon cancer potential of probiotic strains has been attributable to metabiotics that have epigenetic, antimutagenic, immunomodulatory, apoptotic, and antimetastatic effects. Thus, it's time to move one step further to utilize metabiotics more smartly by avoiding the risks associated with probiotics even in certain normal/or immuno compromised host. Here, an attempt is made to provide insight into the adverse effects associated with probiotics and beneficial aspects of metabiotics with main emphasis on the modulatory mechanisms involved in colon cancer.
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Affiliation(s)
- Mridul Sharma
- Department of Microbiology, Panjab University Chandigarh, India
| | - Geeta Shukla
- Department of Microbiology, Panjab University Chandigarh, India
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Qamar TR, Syed F, Nasir M, Rehman H, Zahid MN, Liu RH, Iqbal S. Novel Combination of Prebiotics Galacto-Oligosaccharides and Inulin-Inhibited Aberrant Crypt Foci Formation and Biomarkers of Colon Cancer in Wistar Rats. Nutrients 2016; 8:E465. [PMID: 27490566 PMCID: PMC4997378 DOI: 10.3390/nu8080465] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/12/2016] [Accepted: 07/20/2016] [Indexed: 12/30/2022] Open
Abstract
The selectivity and beneficial effects of prebiotics are mainly dependent on composition and glycosidic linkage among monosaccharide units. This is the first study to use prebiotic galacto-oligosaccharides (GOS) that contains β-1,6 and β-1,3 glycosidic linkages and the novel combination of GOS and inulin in cancer prevention. The objective of the present study is to explore the role of novel GOS and inulin against various biomarkers of colorectal cancer (CRC) and the incidence of aberrant crypt foci (ACF) in a 1,2-dimethyl hydrazine dihydrochloride (DMH)-induced rodent model. Prebiotic treatments of combined GOS and inulin (57 mg each), as well as individual doses (GOS: 76-151 mg; inulin 114 mg), were given to DMH-treated animals for 16 weeks. Our data reveal the significant preventive effect of the GOS and inulin combination against the development of CRC. It was observed that inhibition of ACF formation (55.8%) was significantly (p ≤ 0.05) higher using the GOS and inulin combination than GOS (41.4%) and inulin (51.2%) treatments alone. This combination also rendered better results on short-chain fatty acids (SCFA) and bacterial enzymatic activities. Dose-dependent effects of prebiotic treatments were also observed on cecum and fecal bacterial enzymes and on SCFA. Thus, this study demonstrated that novel combination of GOS and inulin exhibited stronger preventive activity than their individual treatments alone, and can be a promising strategy for CRC chemoprevention.
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Affiliation(s)
- Tahir Rasool Qamar
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Fatima Syed
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Muhammad Nasir
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Habib Rehman
- Department of Physiology, University of Veterinary & Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Muhammad Nauman Zahid
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY 14850, USA.
| | - Rui Hai Liu
- Department of Food Science, Cornell University, Ithaca, NY 14850, USA.
| | - Sanaullah Iqbal
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore 54000, Punjab, Pakistan.
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Pandey V, Berwal V, Solanki N, Malik NS. Probiotics: Healthy bugs and nourishing elements of diet. J Int Soc Prev Community Dent 2015; 5:81-7. [PMID: 25992331 PMCID: PMC4415334 DOI: 10.4103/2231-0762.155726] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The use of probiotics is based on the concept that adding the right live microbes to the complex human system can result in physiological benefits. The benefit of fermented milk in human diet has been acknowledged since Vedic times; however, the scientific interest in this field was evoked by Ellie Metchinkoff who recommended that people should consume fermented milk containing lactobacilli to prolong their lives, as accelerated aging is due to autointoxication caused by the toxins produced by the gut microflora. They have been used to improve gastrointestinal health and their attractiveness has evinced interest to study their role in the promotion of oral health also. Studies have been widely carried out to establish the role of intestinal lactobacilli as probiotic to treat various gastrointestinal disorders, but only limited studies are available on the oral use of probiotics. The probiotic products usually contain lactobacilli and bifidobacteria, and their demand in the market is growing day by day. This paper provides an overview of various studies in the literature that emphasize on the role of probiotics to combat oral diseases and encourages more research in this field.
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Affiliation(s)
- Vijayendra Pandey
- Department of Periodontology, Vananchal Dental College and Hospital Ranchi, Jharkhand, India
| | - Vikas Berwal
- Deparment of Oral and Maxillofacial Surgery, PGIDS, Rohtak, India
| | - Neeraj Solanki
- Department of Pedodontics and Preventive Dentistry, Kalka Dental College and Preventive Dentistry, Meerut, Uttar Pradesh, India
| | - Narender Singh Malik
- Department of Pedodontics and Preventive Dentistry, Guru Gobind Singh College of Dental Science and Research Centre, Burhanpur Lalbagh Road, Burhanpur, Madhya Pradesh, India
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Mansueto P, Seidita A, D’Alcamo A, Carroccio A. Role of FODMAPs in Patients With Irritable Bowel Syndrome. Nutr Clin Pract 2015; 30:665-82. [DOI: 10.1177/0884533615569886] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
| | | | | | - Antonio Carroccio
- Internal Medicine, Sciacca Hospital, Agrigento, and University of Palermo, Palermo, Italy
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26
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Optimization of the formulation of nutritional breads based on calcium carbonate and inulin. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2014.08.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Gagné JW, Wakshlag JJ, Simpson KW, Dowd SE, Latchman S, Brown DA, Brown K, Swanson KS, Fahey GC. Effects of a synbiotic on fecal quality, short-chain fatty acid concentrations, and the microbiome of healthy sled dogs. BMC Vet Res 2013; 9:246. [PMID: 24313995 PMCID: PMC4029452 DOI: 10.1186/1746-6148-9-246] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 11/26/2013] [Indexed: 01/18/2023] Open
Abstract
Background Sled dogs commonly suffer from diarrhea. Although multiple etiologies exist there are limited field studies using synbiotics as a supplement to prevent or treat diarrhea. The objective of this study was to examine alterations in fecal quality, short-chain fatty acids (SCFA), and the fecal microbiome in two groups of training sled dogs fed a synbiotic or microcrystalline cellulose placebo. Twenty clinically healthy training sled dogs randomized into two cohorts (9 synbiotic-fed, 8 placebo-fed) for a 6 week prospective study were examined. Fecal pH and fecal short chain fatty acid (SCFA) concentrations were measured and tag-encoded FLX 16S rDNA amplicon pyrosequencing (bTEFAP) and quantitative real-time PCR were performed at baseline (10 d prior to the study) and after 2 weeks of treatment with a total treatment time of 6 weeks. Fecal scores for all dogs were assessed at baseline and every day for 6 wk after initiation of treatment. Results Alterations in the fecal microbiome were observed with a significant rise in Lactobacillaceae in the synbiotic group (P = 0.004) after 2 wk of treatment. A positive correlation was found between Lactobacillaceae and overall butyrate concentration (R = 0.62, p = 0.011) in all dogs. After 5 wk of treatment, there was an improved fecal score and fewer days of diarrhea (Χ2 = 5.482, P = 0.019) in the dogs given synbiotic, which coincided with a presumed contagious outbreak shared by all dogs in the study. Conclusions Use of this synbiotic results in an increase in presumed beneficial bacterial flora of the host colon which was associated with a decrease in the prevalence of diarrhea in training sled dogs.
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Affiliation(s)
| | - Joseph J Wakshlag
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, USA.
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Coleman KL, Miah EM, Morris GA, Morris C. Impact of health claims in prebiotic-enriched breads on purchase intent, emotional response and product liking. Int J Food Sci Nutr 2013; 65:164-71. [DOI: 10.3109/09637486.2013.836744] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Christophersen CT, Petersen A, Licht TR, Conlon MA. Xylo-oligosaccharides and inulin affect genotoxicity and bacterial populations differently in a human colonic simulator challenged with soy protein. Nutrients 2013; 5:3740-56. [PMID: 24064573 PMCID: PMC3798932 DOI: 10.3390/nu5093740] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 08/13/2013] [Accepted: 09/01/2013] [Indexed: 12/17/2022] Open
Abstract
High dietary intakes of some protein sources, including soy protein, can increase colonic DNA damage in animals, whereas some carbohydrates attenuate this. We investigated whether inulin and xylo-oligosaccharides (XOS) could be protective against DNA strand breaks by adding them to a human colonic simulator consisting of a proximal vessel (PV) (pH 5.5) and a distal vessel (DV) (pH 6.8) inoculated with human faeces and media containing soy protein. Genotoxicity of the liquid phase and microbial population changes in the vessels were measured. Soy protein (3%) was fermented with 1% low amylose cornstarch for 10 day followed by soy protein with 1% XOS or 1% inulin for 10 day. Inulin did not alter genotoxicity but XOS significantly reduced PV genotoxicity and increased DV genotoxicity. Inulin and XOS significantly increased butyrate concentration in the DV but not PV. Numbers of the key butyrate-producing bacterium Faecalibacterium prausnitzii were significantly increased in the PV and DV by inulin but significantly decreased by XOS in both vessels. Other bacteria examined were also significantly impacted by the carbohydrate treatments or by the vessel (i.e., pH). There was a significant overall inverse correlation between levels of damage induced by the ferments and levels of sulphate-reducing bacteria, Bacteroides fragilis, and acetate. In conclusion, dietary XOS can potentially modulate the genotoxicity of the colonic environment and specific bacterial groups and short chain fatty acids may mediate this.
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Affiliation(s)
- Claus T. Christophersen
- Preventative Health National Research Flagship, CSIRO Animal, Food and Health Sciences, PO Box 10041, Adelaide BC SA 5000, Australia; E-Mail:
| | - Anne Petersen
- National Food Institute, Division of Microbiology and Risk Assessment, Technical University of Denmark, Mørkhøj Bygade 19, Søborg 2860, Denmark; E-Mails: (A.P.); (T.R.L.)
| | - Tine R. Licht
- National Food Institute, Division of Microbiology and Risk Assessment, Technical University of Denmark, Mørkhøj Bygade 19, Søborg 2860, Denmark; E-Mails: (A.P.); (T.R.L.)
| | - Michael A. Conlon
- Preventative Health National Research Flagship, CSIRO Animal, Food and Health Sciences, PO Box 10041, Adelaide BC SA 5000, Australia; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +61-8-8303-8909; Fax: +61-8-8303-8899
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Hijová E, Szabadosova V, Štofilová J, Hrčková G. Chemopreventive and metabolic effects of inulin on colon cancer development. J Vet Sci 2013; 14:387-93. [PMID: 23820222 PMCID: PMC3885731 DOI: 10.4142/jvs.2013.14.4.387] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 06/28/2013] [Indexed: 11/25/2022] Open
Abstract
Prebiotics modulate microbial composition and ensure a healthy gastrointestinal tract environment that can prevent colon cancer development. These natural dietary compounds are therefore potential chemopreventive agents. Thirty Sprague-Dawley rats (4 months old) were experimentally treated with procarcinogen dimethylhydrazine to induce colon cancer development. The rats were randomly assigned to three groups: a control group (CG), a group treated with dimethylhydrazine (DMH), and a group given DMH and inulin, a prebiotic (DMH+PRE). The effects of inulin on the activities of bacterial glycolytic enzymes, short-chain fatty acids, coliform and lactobacilli counts, cytokine levels, and cyclooxygenase-2 (COX-2) and transcription nuclear factor kappa beta (NFκB) immunoreactivity were measured. Inulin significantly decreased coliform counts (p < 0.01), increased lactobacilli counts (p < 0.001), and decreased the activity of β-glucuronidase (p < 0.01). Butyric and propionic concentrations were decreased in the DMH group. Inulin increased its concentration that had been reduced by DMH. Inulin decreased the numbers of COX-2- and NFκB-positive cells in the tunica mucosae and tela submucosae of the colon. The expression of IL-2, TNFα, and IL-10 was also diminished. This 28-week study showed that dietary intake of inulin prevents preneoplastic changes and inflammation that promote colon cancer development.
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Affiliation(s)
- Emília Hijová
- Institute of Experimental Medicine, Faculty of Medicine, Pavol Jozef S̆fárik University, Kos̆ice 040 11, The Slovak Republic.
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de Almeida Gualtieri K, Losi Guembarovski R, Oda JMM, Fiori-Lopes L, Ketelut Carneiro N, de Castro VD, Soni Neto J, Watanabe MAE. Inulin: therapeutic potential, prebiotic properties and immunological aspects. FOOD AGR IMMUNOL 2013. [DOI: 10.1080/09540105.2011.640993] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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32
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Casiraghi MC, Pagani MA, Erba D, Marti A, Cecchini C, D'Egidio MG. Quality and nutritional properties of pasta products enriched with immature wheat grain. Int J Food Sci Nutr 2013; 64:544-50. [DOI: 10.3109/09637486.2013.766152] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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33
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Bindels LB, Porporato P, Dewulf EM, Verrax J, Neyrinck AM, Martin JC, Scott KP, Buc Calderon P, Feron O, Muccioli GG, Sonveaux P, Cani PD, Delzenne NM. Gut microbiota-derived propionate reduces cancer cell proliferation in the liver. Br J Cancer 2012; 107:1337-44. [PMID: 22976799 PMCID: PMC3494429 DOI: 10.1038/bjc.2012.409] [Citation(s) in RCA: 203] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background: Metabolites released by the gut microbiota may influence host metabolism and immunity. We have tested the hypothesis that inulin-type fructans (ITF), by promoting microbial production of short-chain fatty acids (SCFA), influence cancer cell proliferation outside the gut. Methods: Mice transplanted with Bcr-Abl-transfected BaF3 cells, received ITF in their drinking water. Gut microbiota was analysed by 16S rDNA polymerase chain reaction (PCR)–denaturing gradient gel electrophoresis (DGGE) and qPCR. Serum Short-chain fatty acids were quantified by UHPLC-MS. Cell proliferation was evaluated in vivo, by molecular biology and histology, and in vitro. Results: Inulin-type fructans treatment reduces hepatic BaF3 cell infiltration, lessens inflammation and increases portal propionate concentration. In vitro, propionate reduces BaF3 cell growth through a cAMP level-dependent pathway. Furthermore, the activation of free fatty acid receptor 2 (FFA2), a Gi/Gq-protein-coupled receptor also known as GPR43 and that binds propionate, lessens the proliferation of BaF3 and other human cancer cell lines. Conclusion: We show for the first time that the fermentation of nutrients such as ITF into propionate can counteract malignant cell proliferation in the liver tissue. Our results support the interest of FFA2 activation as a new strategy for cancer therapeutics. This study highlights the importance of research focusing on gut microbes–host interactions for managing systemic and severe diseases such as leukaemia.
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Affiliation(s)
- L B Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
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de Moura NA, Caetano BF, Sivieri K, Urbano LH, Cabello C, Rodrigues MA, Barbisan LF. Protective effects of yacon (Smallanthus sonchifolius) intake on experimental colon carcinogenesis. Food Chem Toxicol 2012; 50:2902-10. [DOI: 10.1016/j.fct.2012.05.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 04/20/2012] [Accepted: 05/03/2012] [Indexed: 01/04/2023]
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Escamilla J, Lane MA, Maitin V. Cell-free supernatants from probiotic Lactobacillus casei and Lactobacillus rhamnosus GG decrease colon cancer cell invasion in vitro. Nutr Cancer 2012; 64:871-8. [PMID: 22830611 DOI: 10.1080/01635581.2012.700758] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Probiotics have been shown to have a preventative role in colorectal carcinogenesis but research concerning their prophylactic potential in the later stages of colorectal cancer, specifically metastasis is limited. This study explored the potential of cell-free supernatants (CFS) from 2 probiotic Lactobacillus sp., Lactobacillus casei and Lactobacillus rhamnosus GG, to inhibit colon cancer cell invasion by influencing matrix metalloproteinase-9 (MMP-9) activity and levels of the tight junction protein zona occludens-1 (ZO-1) in cultured metastatic human colorectal carcinoma cells. HCT-116 cells were treated with CFS from L. casei, L. rhamnosus, or Bacteroides thetaiotaomicron (a gut commensal); or with uninoculated bacterial growth media. Treatment with CFS from both Lactobacillus sp. decreased colorectal cell invasion but treatment with CFS from B. thetaiotaomicron did not. CFS from both Lactobacillus sp. decreased MMP-9 and increased ZO-1 protein levels. L. rhamnosus CFS also lowered MMP-9 activity. To begin elucidating the secreted bacterial factor conveying these responses, Lactobacillus sp. CFS were fractionated into defined molecular weight ranges and cell invasion assessed. Fractionation revealed that the inhibitory activity was contained primarily in the >100 kDa and 50-100 kDa fractions, suggesting the inhibitory compound may be a macromolecule such as a protein, nucleic acid, or a polysaccharide.
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Affiliation(s)
- Juanita Escamilla
- School of Family and Consumer Sciences, Nutrition and Foods Program, Texas State University, San Marcos, Texas 78666, USA
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Macdonald RS, Wagner K. Influence of dietary phytochemicals and microbiota on colon cancer risk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:6728-6735. [PMID: 22632581 DOI: 10.1021/jf204230r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Colon cancer is the third most commonly diagnosed type of cancer in the United States. Lifestyle and dietary patterns influence colon cancer risk both positively and negatively. Among the dietary factors, several plant-derived compounds have been found to afford colon cancer protection. These compounds potentially influence all aspects of colonic cellular regulation and develop complex interrelationships with the colonic microbiome. Increasing understanding of the role of microorganisms in determining the colonic environment has led to awareness of this important interrelationship among dietary factors and the microbial population. Plant-derived polyphenols are active mediators of cellular events, target key carcinogenic pathways, and modulate colonic microbial populations. In turn, the colonic microorganisms metabolize dietary compounds and mediate cellular events. In addition, the role of estrogen receptors in colon cancer and the importance of dietary components that mediate estrogen receptor-β are increasingly being discovered. Hence, dietary bioactive compounds and the intestinal microbiota create a complex milieu that directly affects the carcinogenic events of the colon. These relationships must be carefully characterized in future research to provide dietary recommendations that will reduce colon cancer risk.
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Affiliation(s)
- Ruth S Macdonald
- Food Science and Human Nutrition, Iowa State University , Ames, Iowa 50011, United States
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Biochemical Traits, Survival and Biological Properties of the Probiotic Lactobacillus plantarum Grown in the Presence of Prebiotic Inulin and Pectin as Energy Source. Pharmaceuticals (Basel) 2012; 5:481-92. [PMID: 24281559 PMCID: PMC3763650 DOI: 10.3390/ph5050481] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 05/09/2012] [Accepted: 05/11/2012] [Indexed: 02/07/2023] Open
Abstract
The viability of the probiotic strain Lactobacillus plantarum subsp. plantarum, after its passage through simulated gastric and pancreatic juices, was evaluated as function of its pre-growth in a medium containing the known prebiotics pectin or inulin, and was compared to glucose used as control. The presence of pectin or inulin did not markedly affect the growth (10.07 log10 colony forming units/mL and 10.28 log10 colony forming units/mL for pectin and inulin respectively versus 10.42 log10 colony forming units/mL obtained for glucose). Pectin and inulin, in contrast to glucose, induced cell stress resistance against gastrointestinal juices (Δ log101.5 and 2.4 colony forming units/mL respectively, versus Δ log10 4.0 for glucose). The data were corroborated by the analysis of the protein pattern following stress treatments which, in the case of microbial cells grown with glucose, revealed a more marked protein degradation after the double passage through simulated gastric and intestinal juices. Inulin stimulated the production of the relevant healthy bio-molecule butyrate, which amount was 30% higher respect of growth in the presence of glucose. Inulin and pectin improved cell DPPH scavenging activity, and an impressive hydrophobicity (35.28% and 34.81%, respectively) was observed with respect to the microbial growth in presence of glucose (3.39%).
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Rodrigues D, Rocha-Santos TA, Gomes AM, Goodfellow BJ, Freitas AC. Lipolysis in probiotic and synbiotic cheese: The influence of probiotic bacteria, prebiotic compounds and ripening time on free fatty acid profiles. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.10.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Abstract
Inclusion of whole grains (WG) in the diet is recommended in dietary guidance around the world because of their associations with increased health and reduced risk of chronic disease. WGs are linked to reduced risk of obesity or weight gain; reduced risk of cardiovascular disease (CVD), including coronary heart disease (CHD), hypertension, and stroke; improved gut health and decreased risk of cancers of the upper gut; perhaps reduced risk of colorectal cancer; and lower mortality rate. The 2005 United States Dietary Guidelines Advisory Committee has recommended that consumers make "half their grains whole." Yet, whole grains are puzzling both consumers and scientists. Scientists are trying to determine whether their health benefits are due to the synergy of WG components, individual WG components, or the fact that WG eaters make many of the recommended diet and lifestyle choices. Consumers need to understand the WG benefits and how to identify WG foods to have incentive to purchase and use such foods. Industry needs to develop great-tasting, clearly-labeled products. With both these factors working together, it will be possible to change WG consumption habits among consumers.
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Affiliation(s)
- Julie Miller Jones
- Family, Consumer, and Nutritional Sciences, St. Catherine University, St. Paul, Minnesota 55105, USA.
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Abstract
It is proven that nuts contain essential macro- and micronutrients, e.g. fatty acids, vitamins and dietary fibre (DF). Fermentation of DF by the gut microflora results in the formation of SCFA which are recognised for their chemopreventive potential, especially by influencing cell growth. However, little is known about cellular response to complex fermentation samples of nuts. Therefore, we prepared and analysed (pH, SCFA, bile acids, tocopherol, antioxidant capacity) fermentation supernatant (fs) fractions of nuts (almonds, macadamias, hazelnuts, pistachios, walnuts) after in vitro fermentation and determined their effects on growth of HT29 cells as well as their genotoxic/anti-genotoxic potential. The fermented nut samples contained 2- to 3-fold higher amounts of SCFA than the faeces control, but considerable reduced levels of bile acids. While most of the investigated native nuts comprised relatively high amounts of tocopherol (α-tocopherol in almonds and hazelnuts and γ- and δ-tocopherol in pistachios and walnuts), rather low concentrations were found in the fs. All nut extracts and nut fs showed a strong antioxidant potential. Furthermore, all fs, except the fs pistachio, reduced growth of HT29 cells significantly. DNA damage induced by H₂O₂ was significantly reduced by the fs of walnuts after 15 min co-incubation of HT29 cells. In conclusion, this is the first study which presents the chemopreventive effects (reduction of tumour-promoting desoxycholic acid, rise in chemopreventive SCFA, protection against oxidative stress) of different nuts after in vitro digestion and fermentation, and shows the potential importance of nuts in the prevention of colon cancer.
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Abstract
Cereal-based food products have been the basis of the human diet since ancient times. Dietary guidelines all over the world are recommending the inclusion of whole grains because of the increasing evidence that whole grains and whole-grain-based products have the ability to enhance health beyond the simple provision of energy and nutrients. In this review we will examine the main chemical components present in whole grains that may have health enhancing properties (dietary fiber, inulin, beta-glucan, resistant starch, carotenoids, phenolics, tocotrienols, and tocopherols) and the role that whole grains may play in disease prevention (cardiovascular diseases and strokes, hypertension, metabolic syndrome, type 2 diabetes mellitus, obesity, as well as different forms of cancer). The knowledge derived from the functional properties of the different chemical components present in whole grains will aid in the formulation and development of new food products with health enhancing characteristics.
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Affiliation(s)
- Rafael Borneo
- Cátedra Química Aplicada, Facultad Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.
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Azcárate-Peril MA, Sikes M, Bruno-Bárcena JM. The intestinal microbiota, gastrointestinal environment and colorectal cancer: a putative role for probiotics in prevention of colorectal cancer? Am J Physiol Gastrointest Liver Physiol 2011; 301:G401-24. [PMID: 21700901 PMCID: PMC3774253 DOI: 10.1152/ajpgi.00110.2011] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the United States, and, even though 5-15% of the total CRC cases can be attributed to individual genetic predisposition, environmental factors could be considered major factors in susceptibility to CRC. Lifestyle factors increasing the risks of CRC include elevated body mass index, obesity, and reduced physical activity. Additionally, a number of dietary elements have been associated with higher or lower incidence of CRC. In this context, it has been suggested that diets high in fruit and low in meat might have a protective effect, reducing the incidence of colorectal adenomas by modulating the composition of the normal nonpathogenic commensal microbiota. In addition, it has been demonstrated that changes in abundance of taxonomic groups have a profound impact on the gastrointestinal physiology, and an increasing number of studies are proposing that the microbiota mediates the generation of dietary factors triggering colon cancer. High-throughput sequencing and molecular taxonomic technologies are rapidly filling the knowledge gaps left by conventional microbiology techniques to obtain a comprehensive catalog of the human intestinal microbiota and their associated metabolic repertoire. The information provided by these studies will be essential to identify agents capable of modulating the massive amount of gut bacteria in safe noninvasive manners to prevent CRC. Probiotics, defined as "live microorganisms which, when administered in adequate amounts, confer a health benefit on the host" (219), are capable of transient modulation of the microbiota, and their beneficial effects include reinforcement of the natural defense mechanisms and protection against gastrointestinal disorders. Probiotics have been successfully used to manage infant diarrhea, food allergies, and inflammatory bowel disease; hence, the purpose of this review was to examine probiotic metabolic activities that may have an effect on the prevention of CRC by scavenging toxic compounds or preventing their generation in situ. Additionally, a brief consideration is given to safety evaluation and production methods in the context of probiotics efficacy.
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Affiliation(s)
- M. Andrea Azcárate-Peril
- 1Department of Cell and Molecular Physiology, University of North Carolina School of Medicine, Chapel Hill;
| | - Michael Sikes
- 2Department of Microbiology, North Carolina State University, Raleigh, North Carolina
| | - José M. Bruno-Bárcena
- 2Department of Microbiology, North Carolina State University, Raleigh, North Carolina
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Baffoni L, Gaggìa F, Di Gioia D, Biavati B. Role of intestinal microbiota in colon cancer prevention. ANN MICROBIOL 2011. [DOI: 10.1007/s13213-011-0306-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Rajendran P, Williams DE, Ho E, Dashwood RH. Metabolism as a key to histone deacetylase inhibition. Crit Rev Biochem Mol Biol 2011; 46:181-99. [PMID: 21599534 DOI: 10.3109/10409238.2011.557713] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
There is growing interest in the epigenetic mechanisms that are dysregulated in cancer and other human pathologies. Under this broad umbrella, modulators of histone deacetylase (HDAC) activity have gained interest as both cancer chemopreventive and therapeutic agents. Of the first generation, FDA-approved HDAC inhibitors to have progressed to clinical trials, vorinostat represents a "direct acting" compound with structural features suitable for docking into the HDAC pocket, whereas romidepsin can be considered a prodrug that undergoes reductive metabolism to generate the active intermediate (a zinc-binding thiol). It is now evident that other agents, including those in the human diet, can be converted by metabolism to intermediates that affect HDAC activity. Examples are cited of short-chain fatty acids, seleno-α-keto acids, small molecule thiols, mercapturic acid metabolites, indoles, and polyphenols. The findings are discussed in the context of putative endogenous HDAC inhibitors generated by intermediary metabolism (e.g. pyruvate), the yin-yang of HDAC inhibition versus HDAC activation, and the screening assays that might be most appropriate for discovery of novel HDAC inhibitors in the future.
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Affiliation(s)
- Praveen Rajendran
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
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Tamura M, Ohnishi Y, Kotani T, Gato N. Effects of new dietary fiber from Japanese Apricot (Prunus mume Sieb. et Zucc.) on gut function and intestinal microflora in adult mice. Int J Mol Sci 2011; 12:2088-99. [PMID: 21731428 PMCID: PMC3127104 DOI: 10.3390/ijms12042088] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 03/11/2011] [Accepted: 03/15/2011] [Indexed: 01/17/2023] Open
Abstract
Much attention has been focused recently on functional foods. Ume, the Japanese name for the apricot of Prunus mume Sieb. et Zucc., is an example of a Japanese traditional functional food. There are, however, few reports on the effects of fiber from this fruit on bowel function. With this objective, we prepared ume fiber to test the hypothesis that it can change gut function and intestinal flora in mice. Mice were fed an ume fiber (UF) or cellulose (CF) diet (control) for 40 days. The fecal weight, fecal lipids, plasma lipids and cecal composition of the microflora were analyzed. The amount of feces was significantly greater in the UF group than in the CF group (p < 0.01). The fecal lipids content (% DW) of the feces sampled on the final day of the experiment were significantly greater in the UF group than in the CF group (p < 0.01). Plasma non-esterified fatty acids (NEFA) concentrations tended to be lower in the UF compared to the CF group (p = 0.058). Occupation ratios of Bacteroides and Clostridium cluster IV were significantly greater in the cecal flora of the UF group. Our results suggest that ume fiber possesses the fecal lipid excretion effects and feces bulking effects.
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Affiliation(s)
- Motoi Tamura
- National Food Research Institute, The National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-298-38-8089; Fax: +81-298-38-7996
| | - Yuriko Ohnishi
- Food Science Research Laboratory, Nakano BC Co. Ltd., Kainan, Wakayama, Japan; E-Mails: (Y.O.); (T.K.); (N.G.)
| | - Tatsuya Kotani
- Food Science Research Laboratory, Nakano BC Co. Ltd., Kainan, Wakayama, Japan; E-Mails: (Y.O.); (T.K.); (N.G.)
| | - Nobuki Gato
- Food Science Research Laboratory, Nakano BC Co. Ltd., Kainan, Wakayama, Japan; E-Mails: (Y.O.); (T.K.); (N.G.)
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46
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Modification of anin vitromodel simulating the whole digestive process to investigate cellular endpoints of chemoprevention. Br J Nutr 2011; 105:678-87. [DOI: 10.1017/s0007114510004320] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In vitrogut fermentation systems are relevant tools to study health benefits of foodstuffs. Most of them are commonly used to investigate the degradation of nutrients or the development of gut flora. Using these models, strong cytotoxic effects of the resulting samples on cultured cells were observed. Hence, the aim of the present study was to develop a modifiedin vitrofermentation model that simulates the whole digestive tract and generates fermented samples that are suitable for testing in cell culture experiments. Wholemeal wheat flour (wwf) was digested and fermentedin vitrowith a fermentation model using different ox gall concentrations (41·6 and 0·6 g/l). The resulting fermentation supernatants (fs) were characterised for metabolites and biological effects in HT29 cells. The fermentation of wwf increased chemopreventive SCFA and decreased carcinogenic deoxycholic acid (DCA). The strong cytotoxic effects of the fs, which were partly due to cholic acid and DCA, were diminished by lowering the ox gall concentration, allowing the use of the samples in cell culture experiments. In conclusion, anin vitrodigestion model, which can be used to study the effects of foodstuffs on chemoprevention and gut health in colon cells, is introduced and its physiological relevance is demonstrated.
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Casiraghi MC, Zanchi R, Canzi E, Pagani MA, Viaro T, Benini L, D'Egidio MG. Prebiotic potential and gastrointestinal effects of immature wheat grain (IWG) biscuits. Antonie van Leeuwenhoek 2011; 99:795-805. [PMID: 21258966 DOI: 10.1007/s10482-011-9553-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
Abstract
In this study the effects of immature wheat grains (IWG), a natural source of fructo-oligosaccharides (FOS), on intestinal microbiota and gastrointestinal function were evaluated. Ileal effluents from three ileostomates were collected for 8 h after IWG-enriched or Control biscuit administration, and then fermented in vitro with human faecal inoculum. On fermentation broths, microbial counts and SCFA were measured. Moreover, we investigated the effect of IWG biscuits on gastric emptying. Twelve healthy volunteers underwent ultrasound measurement of gastric emptying of a standard meal consumed 5 h after a breakfast composed by lactose-free milk and IWG or Control biscuits; hunger and satiety sensations were also evaluated in this period. Bifidobacteria and lactic acid bacteria counts were higher (P < 0.05) in IWG than in Control cultures, supporting the prebiotic effects of IWG, probably linked to its FOS content; moreover IWG fermentation produced more acetate. In vivo IWG biscuits delayed gastric emptying of the next meal (P < 0.05), decreased hunger (P < 0.001) and increased satiety (P < 0.005). Therefore in vitro results substantiate the potential of IWG as a prebiotic ingredient and in vivo data suggest an effect of IWG on gastric emptying and on persistent satiety. These preliminary data tend to support the use of IWG in formulating functional prebiotic products suitable to promote satiety.
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Affiliation(s)
- Maria C Casiraghi
- Department of Food Science and Microbiology (DISTAM), University of Milan, Via Celoria n.2, 20133, Milan, Italy
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Effects of intervention with sulindac and inulin/VSL#3 on mucosal and luminal factors in the pouch of patients with familial adenomatous polyposis. Int J Colorectal Dis 2011; 26:575-82. [PMID: 21243500 PMCID: PMC3077743 DOI: 10.1007/s00384-010-1127-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/22/2010] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIM In order to define future chemoprevention strategies for adenomas or carcinomas in the pouch of patients with familial adenomatous polyposis (FAP), a 4-weeks intervention with (1) sulindac, (2) inulin/VSL#3, and (3) sulindac/inulin/VSL#3 was performed on 17 patients with FAP in a single center intervention study. Primary endpoints were the risk parameters cell proliferation and glutathione S-transferase (GST) detoxification capacity in the pouch mucosa; secondary endpoints were the short chain fatty acid (SCFA) contents, pH, and cytotoxicity of fecal water. METHODS Before the start and at the end of each 4-week intervention period, six biopsies of the pouch were taken and feces was collected during 24 h. Cell proliferation and GST enzyme activity was assessed in the biopsies and pH, SCFA contents, and cytotoxicity were assessed in the fecal water fraction. The three interventions (sulindac, inulin/VSL#3, sulindac/inulin/VSL#3) were compared with the Mann-Whitney U test. RESULTS Cell proliferation was lower after sulindac or VSL#3/inulin, the combination treatment with sulindac/inulin/VSL#3 showed the opposite. GST enzyme activity was increased after sulindac or VSL#3/inulin, the combination treatment showed the opposite effect. However, no significance was reached in all these measures. Cytotoxicity, pH, and SCFA content of fecal water showed no differences at all among the three treatment groups. CONCLUSION Our study revealed non-significant decreased cell proliferation and increased detoxification capacity after treatment with sulindac or VSL#3/inulin; however, combining both regimens did not show an additional effect.
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Abstract
Onions are excellent sources of bioactive compounds including fructo-oligosaccharides (FOS) and polyphenols. An onion by-product was characterised in order to be developed as a potentially bioactive food ingredient. Our main aim was to investigate whether the potential health and safety effects of this onion by-product were shared by either of two derived fractions, an extract containing the onion FOS and polyphenols and a residue fraction containing mainly cell wall materials. We report here on the effects of feeding these products on markers of potential toxicity, protective enzymes and gut environment in healthy rats. Rats were fed during 4 weeks with a diet containing the products or a control feed balanced in carbohydrate. The onion by-product and the extract caused anaemia as expected in rodents for Allium products. No other toxicity was observed, including genotoxicity. Glutathione reductase (GR) and glutathione peroxidase (GPx1) activities in erythrocytes increased when rats were fed with the onion extract. Hepatic gene expression of Gr, Gpx1, catalase, 5-aminolevulinate synthase and NAD(P)H:quinone oxidoreductase was not altered in any group of the onion fed rats. By contrast, gamma-glutamate cysteine ligase catalytic subunit gene expression was upregulated but only in rats given the onion residue. The onion by-products as well as the soluble and insoluble fractions had prebiotic effects as evidenced by decreased pH, increased butyrate production and altered gut microbiota enzyme activities. In conclusion, the onion by-products have no in vivo genotoxicity, may support in vivo antioxidative defence and alter the functionality of the rat gut microbiota.
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50
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Scharlau D, Borowicki A, Habermann N, Hofmann T, Klenow S, Miene C, Munjal U, Stein K, Glei M. Mechanisms of primary cancer prevention by butyrate and other products formed during gut flora-mediated fermentation of dietary fibre. Mutat Res 2009; 682:39-53. [PMID: 19383551 DOI: 10.1016/j.mrrev.2009.04.001] [Citation(s) in RCA: 218] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Revised: 04/08/2009] [Accepted: 04/14/2009] [Indexed: 05/27/2023]
Abstract
Dietary fibres are indigestible food ingredients that reach the colon and are then fermented by colonic bacteria, resulting mainly in the formation of short-chain fatty acids (SCFA) such as acetate, propionate, and butyrate. Those SCFA, especially butyrate, are recognised for their potential to act on secondary chemoprevention by slowing growth and activating apoptosis in colon cancer cells. Additionally, SCFA can also act on primary prevention by activation of different drug metabolising enzymes. This can reduce the burden of carcinogens and, therefore, decrease the number of mutations, reducing cancer risk. Activation of GSTs by butyrate has been studied on mRNA, protein, and enzyme activity level by real-time RT-PCR, cDNA microarrays, Western blotting, or photometrical approaches, respectively. Butyrate had differential effects in colon cells of different stages of cancer development. In HT29 tumour cells, e.g., mRNA GSTA4, GSTP1, GSTM2, and GSTT2 were induced. In LT97 adenoma cells, GSTM3, GSTT2, and MGST3 were induced, whereas GSTA2, GSTT2, and catalase (CAT) were elevated in primary colon cells. Colon cells of different stages of carcinogenesis differed in post-transcriptional regulatory mechanisms because butyrate increased protein levels of different GST isoforms and total GST enzyme activity in HT29 cells, whereas in LT97 cells, GST protein levels and activity were slightly reduced. Because butyrate increased histone acetylation and phosphorylation of ERK in HT29 cells, inhibition of histone deacetylases and the influence on MAPK signalling are possible mechanisms of GST activation by butyrate. Functional consequences of this activation include a reduction of DNA damage caused by carcinogens like hydrogen peroxide or 4-hydroxynonenal (HNE) in butyrate-treated colon cells. Treatment of colon cells with the supernatant from an in vitro fermentation of inulin increased GST activity and decreased HNE-induced DNA damage in HT29 cells. Additional animal and human studies are needed to define the exact role of dietary fibre and butyrate in inducing GST activity and reducing the risk of colon cancer.
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Affiliation(s)
- Daniel Scharlau
- Institute for Nutrition, Friedrich Schiller University Jena, Dornburger Strasse 24, 07743 Jena, Germany.
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