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Gotoh S, Kitaguchi K, Yabe T. Pectin Modulates Calcium Absorption in Polarized Caco-2 Cells via a Pathway Distinct from Vitamin D Stimulation. J Appl Glycosci (1999) 2023; 70:59-66. [PMID: 38143569 PMCID: PMC10738857 DOI: 10.5458/jag.jag.jag-2022_0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
Pectin, a type of soluble fiber, promotes morphological changes in the small intestinal villi. Although its physiological significance is unknown, we hypothesized that changes in villus morphology enhance the efficiency of nutrient absorption in the small intestine and investigated the effect of pectin derived from persimmon on calcium absorption using polarized Caco-2 cells. In polarized Caco-2 cells, pectin altered the mRNA expression levels of substances involved in calcium absorption and the regulation of intracellular calcium concentration and significantly reduced calcium absorption. Although this was comparable to the results of absorption and permeability associated with the addition of active vitamin D, the simultaneous action of pectin and active vitamin D did not show any additive effects. Furthermore, as active vitamin D significantly increases the activity of intestinal alkaline phosphatase (ALP), which is known to be involved in the regulation of intestinal absorption of calcium and lipids, we also investigated the effect of pectin on intestinal ALP activity. As a result, it was found that, unlike the effect of active vitamin D, pectin significantly reduced intestinal ALP activity. These results suggest that pectin stimulates polarized Caco-2 cells through a mechanism distinct from the regulation of calcium absorption by vitamin D, modulating total calcium absorption from the elongated villi through morphological changes in the small intestine by suppressing it at the cellular level.
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Affiliation(s)
- Saki Gotoh
- The United Graduate School of Agricultural Science, Gifu University
| | - Kohji Kitaguchi
- The United Graduate School of Agricultural Science, Gifu University
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University
- Preemptive Food Research Center (PFRC), Gifu University Institute for Advanced Study
| | - Tomio Yabe
- The United Graduate School of Agricultural Science, Gifu University
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University
- Preemptive Food Research Center (PFRC), Gifu University Institute for Advanced Study
- Institute for Glyco-core Research (iGCORE), Gifu University
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2
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Šešelja K, Bazina I, Vrecl M, Farger J, Schicht M, Paulsen F, Baus Lončar M, Pirman T. Tff3 Deficiency Differentially Affects the Morphology of Male and Female Intestines in a Long-Term High-Fat-Diet-Fed Mouse Model. Int J Mol Sci 2023; 24:16342. [PMID: 38003531 PMCID: PMC10671422 DOI: 10.3390/ijms242216342] [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: 08/27/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Trefoil factor family protein 3 (Tff3) protects the gastrointestinal mucosa and has a complex mode of action in different tissues. Here, we aimed to determine the effect of Tff3 deficiency on intestinal tissues in a long-term high-fat-diet (HFD)-fed model. A novel congenic strain without additional metabolically relevant mutations (Tff3-/-/C57Bl6NCrl strain, male and female) was used. Wild type (Wt) and Tff3-deficient mice of both sexes were fed a HFD for 36 weeks. Long-term feeding of a HFD induces different effects on the intestinal structure of Tff3-deficient male and female mice. For the first time, we found sex-specific differences in duodenal morphology. HFD feeding reduced microvilli height in Tff3-deficient females compared to that in Wt females, suggesting a possible effect on microvillar actin filament dynamics. These changes could not be attributed to genes involved in ER and oxidative stress, apoptosis, or inflammation. Tff3-deficient males exhibited a reduced cecal crypt depth compared to that of Wt males, but this was not the case in females. Microbiome-related short-chain fatty acid content was not affected by Tff3 deficiency in HFD-fed male or female mice. Sex-related differences due to Tff3 deficiency imply the need to consider both sexes in future studies on the role of Tff in intestinal function.
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Affiliation(s)
- Kate Šešelja
- Department of Molecular Medicine, Ruđer Bošković Institute, Bjenička 54, 10 000 Zagreb, Croatia; (K.Š.); (I.B.)
| | - Iva Bazina
- Department of Molecular Medicine, Ruđer Bošković Institute, Bjenička 54, 10 000 Zagreb, Croatia; (K.Š.); (I.B.)
| | - Milka Vrecl
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia;
| | - Jessica Farger
- Institute of Functional and Clinical Anatomy, Faculty of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (J.F.); (M.S.); (F.P.)
| | - Martin Schicht
- Institute of Functional and Clinical Anatomy, Faculty of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (J.F.); (M.S.); (F.P.)
| | - Friedrich Paulsen
- Institute of Functional and Clinical Anatomy, Faculty of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (J.F.); (M.S.); (F.P.)
| | - Mirela Baus Lončar
- Department of Molecular Medicine, Ruđer Bošković Institute, Bjenička 54, 10 000 Zagreb, Croatia; (K.Š.); (I.B.)
| | - Tatjana Pirman
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
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3
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Nakamura YK, Metea C, Llorenç V, Karstens L, Balter A, Lin P. A diet rich in fermentable fiber promotes robust changes in the intestinal microbiota, mitigates intestinal permeability, and attenuates autoimmune uveitis. Sci Rep 2023; 13:10806. [PMID: 37402809 DOI: 10.1038/s41598-023-37062-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 06/15/2023] [Indexed: 07/06/2023] Open
Abstract
Therapeutic approaches for noninfectious uveitis have expanded greatly over the past 10 years, but are limited by potential side effects and limited efficacy. Thus, therapeutic approaches that include less toxic, potentially preventative strategies to manage noninfectious uveitis are essential areas of study. Diets rich in fermentable fiber are potentially preventative in various conditions such as metabolic syndrome and type 1 diabetes. We studied the effects of various fermentable dietary fibers in an inducible model of experimental autoimmune uveitis (EAU) and found that they differentially modulated uveitis severity. A high pectin diet was the most protective, reducing clinical disease severity through the induction of regulatory T lymphocytes and the suppression of Th1 and Th17 lymphocytes at peak ocular inflammation in either intestinal or extra-intestinal lymphoid tissues. The high pectin diet also promoted intestinal homeostasis as shown by changes in intestinal morphology and gene expression, as well as intestinal permeability. Pectin-induced modulation of intestinal bacteria appeared to be associated with protective changes in immunophenotype in the intestinal tract, and correlated with reduced uveitis severity. In summary, our current findings support the potential for dietary intervention as a strategy to mitigate noninfectious uveitis severity.
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Affiliation(s)
- Yukiko K Nakamura
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Christina Metea
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Victor Llorenç
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
- Clinic Institute of Ophthalmology, Clinic Hospital of Barcelona, Barcelona, Spain
| | - Lisa Karstens
- Departments of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, OR, USA
| | - Ariel Balter
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
| | - Phoebe Lin
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA.
- Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
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Pirman T, Rezar V, Vrecl M, Salobir J, Levart A. Effect of Olive Leaves or Marigold Petal Extract on Oxidative Stress, Gut Fermentative Activity, and Mucosa Morphology in Broiler Chickens Fed a Diet Rich in n-3 Polyunsaturated Fats. J Poult Sci 2021; 58:119-130. [PMID: 33927566 PMCID: PMC8076619 DOI: 10.2141/jpsa.0200026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/02/2020] [Indexed: 12/19/2022] Open
Abstract
An experiment in broilers was conducted to investigate the effect of olive (Olea europea) leaves and marigold (Calendula officinalis) petal extract supplementation on oxidative stress, characteristics of intestinal contents, and on the morphology of the small intestine. Oxidative stress was induced by a n-3 polyunsaturated fatty acids rich diet. 1-day-old male broiler chickens, Ross 308, were housed in a deep litter system. After the first 21 days, animals were randomly divided into three groups of 16 animals in two replicates and fed, until slaughter on day 39, a diet that contained 7% linseed oil. Control diet (Cont) remained unsupplemented, while both experimental diets were supplemented with olive leaves (OliveEx) or marigold petal (MarigEx) extracts. Oxidative stress was evaluated in blood and liver by measuring markers of lipid peroxidation (malondialdehyde (MDA), isoprostanes), rate of DNA damage in lymphocytes and in blood (comet assay, 8-hydroxy-2'deoxyguanosine (8-OHdG)), and activity of antioxidant and liver enzymes in blood. In different parts of the intestine, levels of short chain fatty acids (SCFA), and viscosity of intestinal contents were measured, and the health of the gastrointestinal tract was assessed using histological measurements. OliveEx significantly (p<0.05) decreased the MDA and 8-OHdG concentration in plasma, and the level of ethanoic acid in small intestinal contents and total SCFA in caecum, indicating improved oxidative status and increased microbial activity in the intestine. MarigEx significantly (p<0.05) decreased the rate of lymphocyte DNA damage and the crypt depth in duodenum, indicating potentially beneficial effects on the immune system and the health of the small intestine. In conclusion, dietary OliveEx and MarigEx supplementation improved some markers of oxidative stress and intestinal health. However, positive effects could be more pronounced in more unfavorable environmental conditions or in cases of diseases, but further studies are needed.
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Affiliation(s)
- Tatjana Pirman
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia
| | - Vida Rezar
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia
| | - Milka Vrecl
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Janez Salobir
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia
| | - Alenka Levart
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia
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Gotoh S, Naka T, Kitaguchi K, Yabe T. Arabinogalactan in the side chain of pectin from persimmon is involved in the interaction with small intestinal epithelial cells. Biosci Biotechnol Biochem 2021; 85:1729-1736. [PMID: 33877300 DOI: 10.1093/bbb/zbab068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/14/2021] [Indexed: 11/12/2022]
Abstract
Pectin in Diospyros kaki (persimmon) is a complex polysaccharide and is classified as a dietary fiber. Pectin is characterized by the presence of side chains of neutral sugars, such as galactose residues; however, the structure and properties of these sugars vary greatly depending on the plant species from which it is derived. Here, we report the structural features of pectin extracted from persimmon. The polysaccharide was low-methoxy pectin with a degree of methyl esterification <50% and ratio of side chain galactan to arabinan in the rhamnogalacturonan-I region of pectin of 3-20. To investigate the physiological function of pectin from persimmon, we performed a coculture assay using Caco-2 cells. As a result, it was shown that the proliferation of undifferentiated Caco-2 cells was promoted, and further, the importance of arabinogalactan among the pectin structures was shown.
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Affiliation(s)
- Saki Gotoh
- The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan
| | - Tomomi Naka
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Kohji Kitaguchi
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Tomio Yabe
- The United Graduate School of Agricultural Science, Gifu University, Gifu, Japan.,Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Japan
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A L Othman S, Suliman R. How Pectin Play a Role in Histological Changes by Monosodium Glutamate (MSG) in the Ovary of Mice? Pak J Biol Sci 2020; 23:1146-1153. [PMID: 32981245 DOI: 10.3923/pjbs.2020.1146.1153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE The effects of pectin from the natural vitamins and herbs on the ovary of mice induced by monosodium glutamate (MSG) leads to over accumulations in living cells and finally produces cellular toxicity and damage, pectin helps to rapidly reduce this changes. MATERIALS AND METHODS Cytotoxicity of monosodium glutamate was investigated histologically by using hematoxylin and eosin (H and E) stains. The animals received (MSG) in drinking water at a dose of 3 g kg-1 b.wt., in drinking water for three weeks. The ovary tissues were subjected to histological and morphological analysis. RESULTS In female rats treated with a dose of MSG of 3 g kg-1 daily in drinking water clear toxicological effects on the ovary tissue were significantly obtained. The mice were then anesthetized, dissected the ovary samples were taken from female mice and kept in a 10% neutral formalin solution to make tissue slides after that examined under the microscope to see the differences. Sections showed the occurrence of several histopathological changes in the ovary. CONCLUSION This study concluded that the effectiveness of pectin therapy on ovarian cells destroyed by the effect of monosodium glutamate, which has proven to be very effective in treating all affected and restoring tissue to normal.
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Günter EA, Khramova DS, Markov PA, Popeyko OV, Melekhin AK, Beloserov VS, Martinson EA, Litvinets SG, Popov SV. Swelling behavior and satiating effect of the gel microparticles obtained from callus cultures pectins. Int J Biol Macromol 2019; 123:300-307. [DOI: 10.1016/j.ijbiomac.2018.11.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 09/11/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
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8
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Aider M, Olkhovatov E, Pylypenko L, Nikitchina T, Kasyanov G. SECONDARY PLANT RESOURCES AS PROSPECTIVE UNCONVENTIONAL SOURCES OF PECTIС SUBSTANCES. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.15673/fst.v12i4.1198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The secondary raw materials have been studied as sources of pectic substances necessary for the endo-ecological protection of the organism in the globally deteriorating living conditions of modern humans. The article reveals the significance and long-term benefits of such sources of pectic substances as fruit and seed coats, which are obtained in considerable quantities as a secondary raw material during the implementation of the technological process, and often do not find rational use. Research has been carried out on new prospective sources of pectin substances – secondary resources of processing soybean Glycine max (L.) Merrill, sainfoin Onobrýchis arenária, rapeseed Brassica napus L. oleifera, Sarepta mustard Brassica juncea (L.) Czern, and black mustard Brassica nigra (L.) W.D.J. Koch, castor bean Ricinus communis L., sunflower Helianthus annuus L. Fruit and seed coats of these plant species have been studied. The prospects of their secondary resources for pectin production have been shown. The assessment of the quantitative and qualitative characteristics of the pectic substances of the objects under study, as well as their fractional composition and analytical indicators, make it possible to characterize the potential functional, technological and therapeutic properties of pectin preparations. It has been indicated that in the polyuronid component (fraction of galacturonic acid), all the studied samples of surface tissues of soybean, mustard, sainfoin, sunflower, one rape variety meet international requirements for food pectin (52.87–73.22%), and one of them, the pectin from seed coat of the Valenta variety, meets the requirements for pectins for medical purposes (75.83%). Pectic substances of soybean, mustard, castor bean varieties are characterized by a high degree of esterification (62.37–76.88%) in contrast to the varieties of sainfoin and sunflower (45.29–55.15%). According to the degree of esterification, rape varieties are close to low-esterified pectiс substances – 59.34–61.48%. The prospects of using seed and fruit membranes as an unconventional secondary plant raw material to improve the environmental performance of production and to obtain a valuable therapeutic-and-prophylactic food ingredient have been substantiated.
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Herosimczyk A, Lepczyński A, Ożgo M, Barszcz M, Marynowska M, Tuśnio A, Taciak M, Markulen A, Skomiał J. Proteome changes in ileal mucosa of young pigs resulting
from different levels of native chicory inulin in the diet. JOURNAL OF ANIMAL AND FEED SCIENCES 2018. [DOI: 10.22358/jafs/93737/2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Oduro-Mensah D, Ocloo A, Lowor ST, Mingle C, Okine LKNA, Adamafio NA. Bio-detheobromination of cocoa pod husks: reduction of ochratoxin A content without change in nutrient profile. Microb Cell Fact 2018; 17:79. [PMID: 29778093 PMCID: PMC5960160 DOI: 10.1186/s12934-018-0931-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 05/11/2018] [Indexed: 12/01/2022] Open
Abstract
Background Utilization of cocoa pod husks (CPH) in animal feed is hindered by the presence of theobromine, which is variably toxic to animals. Treatment of this agro-waste to remove theobromine, while preserving its nutrient content, would allow beneficial use of the millions of metric tonnes discarded annually. The aim of this study was to assess the suitability of selected theobromine-degrading filamentous fungi for use as bio-tools in degradation of theobromine in CPH. Results The candidate fungi assessed in this study were an Aspergillus niger (AnTD) and three Talaromyces spp. (TmTD-1, TmTD-2, TvTD) isolates. All the fungi eliminated CPH theobromine, 0.15% w/w starting concentration, within 7 days of start of treatment, and were capable of degrading caffeine and theophylline. The fungi decreased CPH ochratoxin A content by 31–74%. Pectin was not detectable in fungus-treated CPH whereas parameters assessed for proximate composition were not affected. Conclusions The data provide ample evidence that the four isolates can be applied to CPH for the purpose of eliminating theobromine and decreasing ochratoxin A content without affecting nutrient profile. Comparatively, Talaromyces verruculosus TvTD was considered as most suitable for use as a bio-tool in detheobromination of CPH for animal feed.
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Affiliation(s)
- Daniel Oduro-Mensah
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Accra, Ghana. .,Department of Applied Chemistry and Biochemistry, Faculty of Applied Sciences, University for Development Studies, Navrongo Campus, Navrongo, Ghana.
| | - Augustine Ocloo
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Accra, Ghana
| | - Sammy T Lowor
- Physiology/Biochemistry Division, Cocoa Research Institute of Ghana, New Tafo-Akim, Ghana
| | - Cheetham Mingle
- Food Physicochemical Laboratory, Food and Drugs Authority, Accra, Ghana
| | - Laud K N-A Okine
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Accra, Ghana
| | - Naa Ayikailey Adamafio
- Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Accra, Ghana.
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Sahasrabudhe NM, Beukema M, Tian L, Troost B, Scholte J, Bruininx E, Bruggeman G, van den Berg M, Scheurink A, Schols HA, Faas MM, de Vos P. Dietary Fiber Pectin Directly Blocks Toll-Like Receptor 2-1 and Prevents Doxorubicin-Induced Ileitis. Front Immunol 2018; 9:383. [PMID: 29545800 PMCID: PMC5839092 DOI: 10.3389/fimmu.2018.00383] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/12/2018] [Indexed: 12/14/2022] Open
Abstract
Dietary carbohydrate fibers are known to prevent immunological diseases common in Western countries such as allergy and asthma but the underlying mechanisms are largely unknown. Until now beneficial effects of dietary fibers are mainly attributed to fermentation products of the fibers such as anti-inflammatory short-chain fatty acids (SCFAs). Here, we found and present a new mechanism by which dietary fibers can be anti-inflammatory: a commonly consumed fiber, pectin, blocks innate immune receptors. We show that pectin binds and inhibits, toll-like receptor 2 (TLR2) and specifically inhibits the proinflammatory TLR2-TLR1 pathway while the tolerogenic TLR2-TLR6 pathway remains unaltered. This effect is most pronounced with pectins having a low degree of methyl esterification (DM). Low-DM pectin interacts with TLR2 through electrostatic forces between non-esterified galacturonic acids on the pectin and positive charges on the TLR2 ectodomain, as confirmed by testing pectin binding on mutated TLR2. The anti-inflammatory effect of low-DM pectins was first studied in human dendritic cells and mouse macrophages in vitro and was subsequently tested in vivo in TLR2-dependent ileitis in a mouse model. In these mice, ileitis was prevented by pectin administration. Protective effects were shown to be TLR2-TLR1 dependent and independent of the SCFAs produced by the gut microbiota. These data suggest that low-DM pectins as a source of dietary fiber can reduce inflammation through direct interaction with TLR2-TLR1 receptors.
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Affiliation(s)
- Neha M. Sahasrabudhe
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
| | - Martin Beukema
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
| | - Lingmin Tian
- Laboratory of Food Chemistry, Wageningen University, Wageningen, Netherlands
| | - Berit Troost
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
| | - Jan Scholte
- Faculty of Mathematics and Natural Sciences, Neuroendocrinology, Groningen Institute for Evolutionary Life Sciences, Groningen, Netherlands
| | - Erik Bruininx
- Agrifirm Innovation Center, Apeldoorn, Netherlands
- Animal Nutrition Group, Wageningen University, Wageningen, Netherlands
| | | | | | - Anton Scheurink
- Faculty of Mathematics and Natural Sciences, Neuroendocrinology, Groningen Institute for Evolutionary Life Sciences, Groningen, Netherlands
| | - Henk A. Schols
- Laboratory of Food Chemistry, Wageningen University, Wageningen, Netherlands
| | - Marijke M. Faas
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
- Department of Obstetrics and Gynaecology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Paul de Vos
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
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Luo J, Han L, Liu L, Gao L, Xue B, Wang Y, Ou S, Miller M, Peng X. Catechin supplemented in a FOS diet induces weight loss by altering cecal microbiota and gene expression of colonic epithelial cells. Food Funct 2018; 9:2962-2969. [DOI: 10.1039/c8fo00035b] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The present study showed that catechin controlled rats’ body weights by altering gut microbiota and gene expression of colonic epithelial cells when supplemented into a high-fructo-oligosaccharide (FOS) diet.
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Affiliation(s)
- Jianming Luo
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Lulu Han
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Liu Liu
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Lijuan Gao
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Bin Xue
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Yong Wang
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Shiyi Ou
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
| | - Michael Miller
- Department of Food Science and Human Nutrition
- University of Illinois at Urbana-Champaign
- USA
| | - Xichun Peng
- Department of Food Science and Engineering
- Jinan University
- Guangzhou 510630
- China
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13
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Żary-Sikorska E, Juśkiewicz J, Jundziłł A, Rybka J. Effect of diets varying in the type of dietary fibre and its combination with polyphenols on gut function, microbial activity and antioxidant status in rats. JOURNAL OF ANIMAL AND FEED SCIENCES 2016. [DOI: 10.22358/jafs/65560/2016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Zhang GY, Nie SP, Huang XJ, Hu JL, Cui SW, Xie MY, Phillips GO. Study on Dendrobium officinale O-Acetyl-glucomannan (Dendronan). 7. Improving Effects on Colonic Health of Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2485-2491. [PMID: 26329540 DOI: 10.1021/acs.jafc.5b03117] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This research was aimed to study the effect of Dendrobium officinale polysaccharide (Dendronan) on colonic health. Mice were fed Dendronan at doses of 40, 80, and 160 mg/kg body weight for 0, 10, 20, and 30 days, respectively. Results showed that Dendronan, which has a special structure formed by mannose and glucose, rich in O-acetyl groups, exhibited improving effects on colonic and fecal parameters of Balb/c mice. After Dendronan feeding, the content of short-chain fatty acids (SCFAs), colon length and index, and fecal moisture were increased, whereas colonic pH was decreased and defecation time was shortened. All of these changes were significantly different between polysaccharide-treated groups and the control group (p < 0.05). These findings suggested that an adequate intake of Dendronan is beneficial to the process of fermentation and regulation of colonic microenvironment, thus playing a role in the maintenance of colonic health.
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Affiliation(s)
- Guan-ya Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
| | - Shao-ping Nie
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
| | - Xiao-jun Huang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
| | - Jie-lun Hu
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
| | - Steve W Cui
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
- Guelph Food Research Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
| | - Ming-yong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, People's Republic of China
| | - Glyn O Phillips
- Glyn O. Phillips Hydrocolloid Research Centre, Glyndŵr University , Wrexham LL11 2AW, United Kingdom
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Yao CK, Muir JG, Gibson PR. Review article: insights into colonic protein fermentation, its modulation and potential health implications. Aliment Pharmacol Ther 2016; 43:181-96. [PMID: 26527169 DOI: 10.1111/apt.13456] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 09/11/2015] [Accepted: 10/13/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Beneficial effects of carbohydrate fermentation on gastrointestinal health are well established. Conversely, protein fermentation generates harmful metabolites but their relevance to gastrointestinal health is poorly understood. AIM To review the effects of increased protein fermentation on biomarkers of colonic health, factors influencing fermentative activity and potential for dietary modulation to minimise detrimental effects. METHODS A literature search was performed in PubMed, Medline, EMBASE and Google scholar for clinical and pre-clinical studies using search terms - 'dietary protein', 'fermentation', 'putrefaction', 'phenols', 'sulphide', 'branched-chain fatty acid', 'carbohydrate fermentation', 'gastrointestinal'. RESULTS High protein, reduced carbohydrate diets alter the colonic microbiome, favouring a potentially pathogenic and pro-inflammatory microbiota profile, decreased short-chain fatty acid production and increased ammonia, phenols and hydrogen sulphide concentrations. These metabolites largely compromise the colonic epithelium structure, causing mucosal inflammation but may also directly modulate the enteric nervous system and intestinal motility. Increased protein fermentation as a result of a high-protein intake can be attenuated by addition of oligosaccharides, resistant starch and nonstarch polysaccharides and a reduction in total protein or specifically, aromatic and sulphur-containing amino acids. These factors may have clinical importance as novel therapeutic approaches to problems, in which protein fermentation may be implicated, such as malodorous flatus, irritable bowel syndrome, ulcerative colitis and prevention of colorectal cancer. CONCLUSIONS The direct clinical relevance of excessive protein fermentation in the pathogenesis of irritable bowel syndrome, malodorous flatus and ulcerative colitis are underexplored. Manipulating dietary carbohydrate and protein intake have potential therapeutic applications in such settings and warrant further clinical studies.
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Affiliation(s)
- C K Yao
- Department of Gastroenterology, Monash University, Alfred Health, Melbourne, Vic., Australia
| | - J G Muir
- Department of Gastroenterology, Monash University, Alfred Health, Melbourne, Vic., Australia
| | - P R Gibson
- Department of Gastroenterology, Monash University, Alfred Health, Melbourne, Vic., Australia
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Palou M, Sánchez J, García-Carrizo F, Palou A, Picó C. Pectin supplementation in rats mitigates age-related impairment in insulin and leptin sensitivity independently of reducing food intake. Mol Nutr Food Res 2015. [DOI: 10.1002/mnfr.201500292] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mariona Palou
- Laboratory of Molecular Biology; Nutrition and Biotechnology (Nutrigenomics); University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Palma de Mallorca Balearic Islands Spain
| | - Juana Sánchez
- Laboratory of Molecular Biology; Nutrition and Biotechnology (Nutrigenomics); University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Palma de Mallorca Balearic Islands Spain
| | - Francisco García-Carrizo
- Laboratory of Molecular Biology; Nutrition and Biotechnology (Nutrigenomics); University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Palma de Mallorca Balearic Islands Spain
| | - Andreu Palou
- Laboratory of Molecular Biology; Nutrition and Biotechnology (Nutrigenomics); University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Palma de Mallorca Balearic Islands Spain
| | - Catalina Picó
- Laboratory of Molecular Biology; Nutrition and Biotechnology (Nutrigenomics); University of the Balearic Islands and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Palma de Mallorca Balearic Islands Spain
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Adam CL, Williams PA, Dalby MJ, Garden K, Thomson LM, Richardson AJ, Gratz SW, Ross AW. Different types of soluble fermentable dietary fibre decrease food intake, body weight gain and adiposity in young adult male rats. Nutr Metab (Lond) 2014; 11:36. [PMID: 25152765 PMCID: PMC4141268 DOI: 10.1186/1743-7075-11-36] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 07/30/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Dietary fibre-induced satiety offers a physiological approach to body weight regulation, yet there is lack of scientific evidence. This experiment quantified food intake, body weight and body composition responses to three different soluble fermentable dietary fibres in an animal model and explored underlying mechanisms of satiety signalling and hindgut fermentation. METHODS Young adult male rats were fed ad libitum purified control diet (CONT) containing 5% w/w cellulose (insoluble fibre), or diet containing 10% w/w cellulose (CELL), fructo-oligosaccharide (FOS), oat beta-glucan (GLUC) or apple pectin (PECT) (4 weeks; n = 10/group). Food intake, body weight, and body composition (MRI) were recorded, final blood samples analysed for gut satiety hormones, hindgut contents for fermentation products (including short-chain fatty acids, SCFA) and intestinal tissues for SCFA receptor gene expression. RESULTS GLUC, FOS and PECT groups had, respectively, 10% (P < 0.05), 17% (P < 0.001) and 19% (P < 0.001) lower food intake and 37% (P < 0.01), 37% (P < 0.01) and 45% (P < 0.001) lower body weight gain than CONT during the four-week experiment. At the end they had 26% (P < 0.05), 35% (P < 0.01) and 42% (P < 0.001) less total body fat, respectively, while plasma total glucagon-like peptide-1 (GLP-1) was 2.2-, 3.2- and 2.6-fold higher (P < 0.001) and peptide tyrosine tyrosine (PYY) was 2.3-, 3.1- and 3.0-fold higher (P < 0.001). There were no differences in these parameters between CONT and CELL. Compared with CONT and CELL, caecal concentrations of fermentation products increased 1.4- to 2.2-fold in GLUC, FOS and PECT (P < 0.05) and colonic concentrations increased 1.9- to 2.5-fold in GLUC and FOS (P < 0.05), with no consistent changes in SCFA receptor gene expression detected. CONCLUSIONS This provides animal model evidence that sustained intake of three different soluble dietary fibres decreases food intake, weight gain and adiposity, increases circulating satiety hormones GLP-1 and PYY, and increases hindgut fermentation. The presence of soluble fermentable fibre appears to be more important than its source. The results suggest that dietary fibre-induced satiety is worthy of further investigation towards natural body weight regulation in humans.
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Affiliation(s)
- Clare L Adam
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Patricia A Williams
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Matthew J Dalby
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Karen Garden
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Lynn M Thomson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Anthony J Richardson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Silvia W Gratz
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Alexander W Ross
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
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A review of enteral strategies in infant short bowel syndrome: evidence-based or NICU culture? J Pediatr Surg 2013; 48:1099-112. [PMID: 23701789 DOI: 10.1016/j.jpedsurg.2013.01.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/01/2013] [Accepted: 01/09/2013] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Short bowel syndrome (SBS) is an increasingly common condition encountered across neonatal intensive care units. Improvements in parenteral nutrition (PN), neonatal intensive care and surgical techniques, in addition to an improved understanding of SBS pathophysiology, have contributed in equal parts to the survival of this fragile subset of infants. Prevention of intestinal failure associated liver disease (IFALD) and promotion of intestinal adaptation are primary goals of all involved in the care of these patients. While enteral nutritional and pharmacological strategies are necessary to achieve these goals, there remains great variability in the application of therapeutic strategies in units that are not necessarily evidence-based. MATERIALS AND METHODS A search of major English language medical databases (SCOPUS, Index Medicus, Medline, and the Cochrane database) was conducted for the key words short bowel syndrome, medical management, nutritional management and intestinal adaptation. All pharmacological and nutritional agents encountered in the literature search were classified based on their effects on absorptive capacity, intestinal adaptation and bowel motility that are the three major strategies employed in the management of SBS. The Oxford Center for Evidence-Based Medicine (CEBM) classification for levels of evidence was used to develop grades of clinical recommendation for each variable studied. RESULTS We reviewed various medications used and nutritional strategies included soluble fiber, enteral fat, glutamine, probiotics and sodium supplementation. Most interventions have scientific rationale but little evidence to support their role in the management of infant SBS. While some of these agents symptomatically improve diarrhea, they can adversely influence pancreatico-biliary function or actually impair intestinal adaptation. Surgical anatomy and liver function are two important variables that should determine the selection of pharmacological and nutritional interventions. DISCUSSION There is a paucity of research investigating optimal clinical practice in infant SBS and the little evidence available is consistently of lower quality, resulting in a wide variation of clinical practices among NICUs. Prospective trials should be encouraged to bridge the evidence gap between research and clinical practice to promote further progress in the field.
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Combinational Effects of Prebiotics and Soybean against Azoxymethane-Induced Colon Cancer In Vivo. J Nutr Metab 2011; 2011:868197. [PMID: 21961059 PMCID: PMC3180783 DOI: 10.1155/2011/868197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2011] [Revised: 04/18/2011] [Accepted: 05/28/2011] [Indexed: 12/19/2022] Open
Abstract
Prebiotic fructans are nondigestible carbohydrates with numerous health benefits. Soybean is a rich source of phytonutrients such as isoflavones. The objective of this study was to evaluate the chemopreventive effects of prebiotics (Synergy1) and soybean meal (SM) at 5% and 10% levels alone and in combination on azoxymethane- (AOM-) induced colon carcinogenesis. After one wk of acclimatization, Fisher 344 male rats (N = 90) were randomly assigned to 9 groups (n = 10). Control rats (C) were fed AIN-93G/M. Two s/c injections of AOM were administered to rats at 7 and 8 wk of age at 16 mg/kg body weight. Rats were killed by CO(2) asphyxiation at 45 wk. Tumor incidence (%) in treatment groups ranged from 40 to 75 compared to 100 in C. Results indicate that feeding prebiotics and soybean in combination significantly reduced incidence of AOM-induced colon tumors with implications for food industry in the food-product development.
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Abstract
Butyrate is a natural substance present in biological liquids and tissues. The present paper aims to give an update on the biological role of butyrate in mammals, when it is naturally produced by the gastrointestinal microbiota or orally ingested as a feed additive. Recent data concerning butyrate production delivery as well as absorption by the colonocytes are reported. Butyrate cannot be detected in the peripheral blood, which indicates fast metabolism in the gut wall and/or in the liver. In physiological conditions, the increase in performance in animals could be explained by the increased nutrient digestibility, the stimulation of the digestive enzyme secretions, a modification of intestinal luminal microbiota and an improvement of the epithelial integrity and defence systems. In the digestive tract, butyrate can act directly (upper gastrointestinal tract or hindgut) or indirectly (small intestine) on tissue development and repair. Direct trophic effects have been demonstrated mainly by cell proliferation studies, indicating a faster renewal of necrotic areas. Indirect actions of butyrate are believed to involve the hormono-neuro-immuno system. Butyrate has also been implicated in down-regulation of bacteria virulence, both by direct effects on virulence gene expression and by acting on cell proliferation of the host cells. In animal production, butyrate is a helpful feed additive, especially when ingested soon after birth, as it enhances performance and controls gut health disorders caused by bacterial pathogens. Such effects could be considered for new applications in human nutrition.
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González-Molina E, Domínguez-Perles R, Moreno DA, García-Viguera C. Natural bioactive compounds of Citrus limon for food and health. J Pharm Biomed Anal 2009; 51:327-45. [PMID: 19748198 DOI: 10.1016/j.jpba.2009.07.027] [Citation(s) in RCA: 223] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 06/19/2009] [Accepted: 07/22/2009] [Indexed: 12/25/2022]
Abstract
Citrus genus is the most important fruit tree crop in the world and lemon is the third most important Citrus species. Several studies highlighted lemon as an important health-promoting fruit rich in phenolic compounds as well as vitamins, minerals, dietary fiber, essential oils and carotenoids. Lemon fruit has a strong commercial value for the fresh products market and food industry. Moreover, lemon productive networks generate high amounts of wastes and by-products that constitute an important source of bioactive compounds with potential for animal feed, manufactured foods, and health care. This review focuses on the phytochemistry and the analytical aspects of lemon compounds as well as on the importance for food industry and the relevance of Citrus limon for nutrition and health, bringing an overview of what is published on the bioactive compounds of this fruit.
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Affiliation(s)
- E González-Molina
- Lab Fitoquímica, Dept Ciéncia y Tecnología de los Alimentos, CEBAS-CSIC, Apdo 164, 30100, Espinardo, Murcia, Spain
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Effect of cross-linking on the resistance to enzymatic hydrolysis of waxy maize starch and low-methoxy pectin. Food Hydrocoll 2009. [DOI: 10.1016/j.foodhyd.2007.12.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Field R, Verghese M, T. Walker L, Panala V, Shackelfo L, Boateng J. Feeding Wheat Germ Meal and Wheat Germ Oil Reduced Azoxymethane-Induced Aberrant Crypt Foci in Fisher 344 Male Rats. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/ijcr.2008.127.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Jiménez-Escrig A, Tenorio MD, Espinosa-Martos I, Rupérez P. Health-promoting effects of a dietary fiber concentrate from the soybean byproduct okara in rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:7495-7501. [PMID: 18636739 DOI: 10.1021/jf800792y] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Okara (a byproduct of the soy milk industry) is rich in proteins (24.5-37.5 g/100 g of dry matter (dm)), lipids (9.3-22.3 g/100 g of dm), and dietary fiber (DF) (14.5-55.4 g/100 g of dm). It also contains isoflavones (0.14 g/100 g of dm). In the present study we fed female healthy Wistar rats either a standard rat diet or a supplemented 10% DF-rich okara (DFRO) diet for 4 weeks, and then we assessed several health parameters in the serum and the cecum compartments. In comparison to the control group, rats fed DFRO showed a significant decrease in weight gain (5.00 +/- 1.22 g vs 2.00 +/- 1.46 g, P < 0.03, during week 4) and in total cholesterol (65 +/- 8 mg/dL vs 51 +/- 5 mg/dL, P < 0.05) and a significantly increased antioxidant status (36.71 +/- 15.31 micromol of Trolox equivalents (TEs)/g vs 69.75 +/- 16.11 micromol of TEs/g, P < 0.0003) and butyrogenic effect (39.37%, P < 0.003) in the cecum. In addition, a significant enhancement in the apparent absorption (41.89 +/- 1.64% vs 47.02 +/- 2.51%, P < 0.004) and in the true retention (41.62 +/- 1.60% vs 46.68 +/- 2.55%, P < 0.005) of calcium was appreciated. In summary, these findings show for the first time that a concentrate DF from a soybean byproduct protects the gut environment in terms of antioxidant status and prebiotic effect. These results may highlight the development of an innovative soybean byproduct rich in DF which could be useful as a functional ingredient with health-promoting attributes.
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Affiliation(s)
- Antonio Jiménez-Escrig
- Metabolism and Nutrition Department, Instituto del Frío, Consejo Superior de Investigaciones Científicas, E-28040 Madrid, Spain.
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Differential response of protein metabolism in splanchnic organs and muscle to pectin feeding. Br J Nutr 2008; 100:306-11. [DOI: 10.1017/s0007114507888726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The aim of the present study was to determine whether the addition of soluble fibre in the diet affected protein metabolism in the intestinal tissues, some visceral organs and in skeletal muscle. A diet supplemented with pectin (80 g/kg) was fed to young growing rats and the effect on organ mass and protein metabolism in liver, spleen, small and large intestines and gastrocnemius muscle was monitored and compared with the control group. Protein synthesis rates were determined by measuring [13C]valine incorporation in tissue protein. In the pectin-fed rats compared with the controls, DM intake and body weight gain were reduced (9 and 20 %, respectively) as well as gastrocnemius muscle, liver and spleen weights (6, 14 and 11 %, respectively), but the intestinal tissues were increased (64 %). In the intestinal tissues all protein metabolism parameters (protein and RNA content, protein synthesis rate and translational efficiency) were increased in the pectin group. In liver the translational efficiency was also increased, whereas its protein and RNA contents were reduced in the pectin group. In gastrocnemius muscle, protein content, fractional and absolute protein synthesis rates and translational efficiency were lower in the pectin group. The stimulation of protein turnover in intestines and liver by soluble fibre such as pectins could be one of the factors that explain the decrease in muscle turnover and whole-body growth rate.
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Effects of Passiflora edulis flavicarpa on the radiolabeling of blood constituents, morphology of red blood cells and on the biodistribution of sodium pertechnetate in rats. Appl Radiat Isot 2008; 66:1788-92. [PMID: 18586503 DOI: 10.1016/j.apradiso.2008.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Revised: 05/08/2008] [Accepted: 05/14/2008] [Indexed: 11/20/2022]
Abstract
The aim of this study was to evaluate possible effects of Passiflora edulis flavicarpa (P. flavicarpa) extract on the labeling of blood constituents with (99m)Tc, on the morphology of red blood cells, and on the biodistribution of sodium pertechnetate (sodium (99m)Tc). Male Wistar rats were treated with either P. flavicarpa extract or 0.9% NaCl. After that, radiolabeling of blood constituents, morphological analysis of red blood cells and biodistribution of sodium (99m)Tc was evaluated. Radiolabeling of blood constituents and shape of red blood cells were not modified, but a significant (p<0.05) alteration of the biodistribution of sodium (99m)Tc was observed after treatment with P. flavicarpa extract. Although our results were obtained with animals, they could contribute to reduce the risk of misdiagnosis and/or repetition of the examinations in nuclear medicine.
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Weber TE, Ziemer CJ, Kerr BJ. Effects of adding fibrous feedstuffs to the diet of young pigs on growth performance, intestinal cytokines, and circulating acute-phase proteins1. J Anim Sci 2008; 86:871-81. [DOI: 10.2527/jas.2007-0330] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Yang X, Yang C, Farberman A, Rideout TC, de Lange CFM, France J, Fan MZ. The mammalian target of rapamycin-signaling pathway in regulating metabolism and growth1,2. J Anim Sci 2008; 86:E36-50. [DOI: 10.2527/jas.2007-0567] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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