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de Oliveira ECS, Dalmau LM, de Almeida Costa CAR, de Almeida Junior LD, Ballard CR, Maróstica Junior MR, Stahl MA, Grimaldi R, Witaicenis A, Di Stasi LC. Dietary intervention with avocado (Persea americana Mill.) ameliorates intestinal inflammation induced by TNBS in rats. Inflammopharmacology 2023; 31:485-498. [PMID: 36586042 DOI: 10.1007/s10787-022-01128-2] [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: 08/25/2022] [Accepted: 12/15/2022] [Indexed: 01/01/2023]
Abstract
Nutritional interventions have been shown to be an interesting approach for the treatment of chronic diseases, including inflammatory bowel disease (IBD). Persea americana Mill. (avocado), is a potential food to be used for the prevention or treatment of intestinal inflammation, due to its nutritional value and pharmacological effects. In this study we evaluated if the dietary intervention with avocado fruit pulp could as an intestinal anti-inflammatory diet using a trinitrobenzenesulfonic acid (TNBS) model of intestinal inflammation in rats. For this purpose, 5, 10 or 20% of avocado fruit pulp was incorporated in the diet of rats, for 21 days before and 7 days after TNBS-induced intestinal inflammation. Dietary intervention with avocado fruit pulp (20%) decreased the extension of colonic lesions (1.38 ± 0.99 vs. 2.67 ± 0.76 cm), weight/length colon ratio (151.03 ± 31.45 vs. 197.39 ± 49.48 cm), inhibited myeloperoxidase activity (891.2 ± 243.2 vs 1603 ± 158.2 U/g), reduced tumor necrosis factor-α (53.94 ± 6.45 vs. 114.9 ± 6.21 pg/mg), interleukin-1β (583.6 ± 106.2 vs. 1259 ± 81.68 pg/mg) and interferon gamma (27.95 ± 2.97 vs. 47.79 ± 3.51 pg/mg) levels and prevented colonic glutathione depletion (2585 ± 77.2 vs 1778 ± 167.2 nmol/g). The consumption of enriched diet with 20% avocado pulp by 28 days did not promote any alterations in the biochemical or behavioral parameters evaluated. Avocado showed intestinal anti-inflammatory activity, modulating immune response, and acting as antioxidant. The dietary intervention with avocado was safe, suggesting its potential as a complementary treatment in intestinal inflammation.
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Affiliation(s)
- Ellen Cristina Souza de Oliveira
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil.
| | - Lesvi Moya Dalmau
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil
| | - Celso Acácio Rodrigues de Almeida Costa
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil
| | - Luiz Domingues de Almeida Junior
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil
| | - Cíntia Reis Ballard
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas-UNICAMP, Campinas, SP, CEP 13083-862, Brazil
| | - Mário Roberto Maróstica Junior
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas-UNICAMP, Campinas, SP, CEP 13083-862, Brazil
| | - Marcella Aparecida Stahl
- Fats and Oils Laboratory, School of Food Engineering, University of Campinas-UNICAMP, Campinas, SP, CEP 13083-861, Brazil
| | - Renato Grimaldi
- Fats and Oils Laboratory, School of Food Engineering, University of Campinas-UNICAMP, Campinas, SP, CEP 13083-861, Brazil
| | - Aline Witaicenis
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil
| | - Luiz Claudio Di Stasi
- Laboratory of Phytomedicines, Pharmacology and Biotechnology, Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, CEP 18618-689, Brazil
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Zardini Buzatto A, Sarkar I, van Drunen Littel-van den Hurk S, Li L. Comprehensive Lipidomic and Metabolomic Analysis for Studying Metabolic Changes in Lung Tissue Induced by a Vaccine against Respiratory Syncytial Virus. ACS Infect Dis 2020; 6:2130-2142. [PMID: 32633123 DOI: 10.1021/acsinfecdis.0c00210] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Respiratory syncytial virus (RSV) is the leading cause of acute lower respiratory infections in young children. Although the disease may be severe in immunocompromised, young, and elderly people, there is currently no approved vaccine. We previously reported the development and immunological assessment of a novel intranasal vaccine formulation consisting of a truncated version of the RSV fusion protein (ΔF) combined with a three-component adjuvant (TriAdj). Now, we aim to investigate the mechanism of action of the ΔF/TriAdj formulation by searching for metabolic alterations caused by intranasal immunization and the RSV challenge. We carried out untargeted lipidomics and submetabolome profiling (carboxylic acids and amine/phenol-containing metabolites) of lung tissue from ΔF/TriAdj-immunized and nonimmunized, RSV-challenged mice. We observed significant changes of lipids involved in the lung surfactant layer for the nonimmunized animals compared to healthy controls but not for the immunized mice. Metabolic pathways involving the synthesis and regulation of amino acids and unsaturated fatty acids were also modulated by immunization and the RSV challenge. This study illustrates that lipidomic and metabolomic profiling could provide a more comprehensive understanding of the immunological and metabolic alterations caused by RSV and the modulation effected by the ΔF/TriAdj formulation.
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Affiliation(s)
| | - Indranil Sarkar
- VIDO-InterVac, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E3, Canada
- Microbiology and Immunology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Sylvia van Drunen Littel-van den Hurk
- VIDO-InterVac, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E3, Canada
- Microbiology and Immunology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Tiwary S, Berzofsky JA, Terabe M. Altered Lipid Tumor Environment and Its Potential Effects on NKT Cell Function in Tumor Immunity. Front Immunol 2019; 10:2187. [PMID: 31620124 PMCID: PMC6759687 DOI: 10.3389/fimmu.2019.02187] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 08/30/2019] [Indexed: 01/26/2023] Open
Abstract
Natural killer T (NKT) cells are CD1d restricted T cells that mostly recognize lipid antigens. These cells share characteristics with both adaptive and innate immune cells and have multiple immunoregulatory roles. In a manner similar to innate immune cells, they respond quickly to stimuli and secrete large amounts of cytokines, amplifying and modulating the immune response. As T cells, they express T cell receptors (TCRs) and respond in an antigen-specific manner like conventional T cells. There are at least two subtypes of NKT cells, type I and type II, that differ in the nature of their TCR, either semi-invariant (type I) or diverse (type II). The two sub-types generally have opposing functions in tumor immunity, with type I promoting and type II suppressing tumor immunity, and they cross-regulate each other, forming an immunoregulatory axis. The tumor has multiple mechanisms by which it can evade immune-surveillance. One such mechanism involves alteration in tumor lipid repertoire and accumulation of lipids and fatty acids that favor tumor growth and evade anti-tumor immunity. Since NKT cells mostly recognize lipid antigens, an altered tumor lipid metabolic profile will also alter the repertoire of lipid antigens that can potentially affect their immune-modulatory function. In this review, we will explore the effects of alterations in the lipid metabolites on tumor growth, antigen cross-presentation, and overall effect on anti-tumor immunity, especially in the context of NKT cells.
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Affiliation(s)
- Shweta Tiwary
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Jay A. Berzofsky
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Masaki Terabe
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
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Shi Y, Johnson J, Wang B, Chen B, Fisher GL, Urabe G, Shi X, Kent KC, Guo LW, Li L. Mass Spectrometric Imaging Reveals Temporal and Spatial Dynamics of Bioactive Lipids in Arteries Undergoing Restenosis. J Proteome Res 2019; 18:1669-1678. [PMID: 30784274 DOI: 10.1021/acs.jproteome.8b00941] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Restenosis, or renarrowing of the arterial lumen, is a common recurrent disease following balloon angioplasty and stenting treatments for cardiovascular disease. A major technical barrier for deciphering restenotic mechanisms is the dynamic, spatial profiling of bioactive lipids in the arterial wall, especially in small animals. Here, applying matrix-assisted laser desorption/ionization mass spectrometric imaging (MALDI-MSI), we conducted the first lipidomic study of temporal-spatial profiling in a small animal model of angioplasty-induced restenosis. Cross sections were collected 3, 7, and 14 days after balloon angioplasty of rat carotid arteries. MALDI-MSI analyses showed that diacylglycerols (DAGs), signaling lipids associated with restenosis, and lysophosphatidylcholines (LysoPCs), whose function was uncharacterized in restenosis, dramatically increased at postangioplasty day 7 and day 14 in the neointimal layer of balloon-injured arteries compared to uninjured controls. In contrast, sphingomyelins (SMs) did not increase, but rather decreased at day 3, day 7, and day 14 in injured arteries versus the uninjured control arteries. These results revealed previously unexplored distinct temporal-spatial lipid dynamics in the restenotic arterial wall. Additionally, we employed time-of-flight secondary ion mass spectrometry (TOF-SIMS) tandem MS imaging for both molecular identification and imaging at high spatial resolution. These imaging modalities provide powerful tools for unraveling novel mechanisms of restenosis involving lipids or small signaling molecules.
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Affiliation(s)
- Yatao Shi
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Jillian Johnson
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Bowen Wang
- Davis Heart and Lung Research Institute , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Bingming Chen
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Gregory L Fisher
- Physical Electronics , Chanhassen , Minnesota 55317 , United States
| | - Go Urabe
- Davis Heart and Lung Research Institute , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Xudong Shi
- Department of Surgery, School of Medicine and Public Health , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - K Craig Kent
- Davis Heart and Lung Research Institute , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Lian-Wang Guo
- Davis Heart and Lung Research Institute , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Lingjun Li
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.,Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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Gautam A, Muhie S, Chakraborty N, Hoke A, Donohue D, Miller SA, Hammamieh R, Jett M. Metabolomic analyses reveal lipid abnormalities and hepatic dysfunction in non-human primate model for Yersinia pestis. Metabolomics 2018; 15:2. [PMID: 30830480 PMCID: PMC6311182 DOI: 10.1007/s11306-018-1457-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 12/04/2018] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Pneumonic plague is caused by the aerosolized form of Yersinia pestis and is a highly virulent infection with complex clinical consequences, and without treatment, the fatality rate approaches 100%. The exact mechanisms of disease progression are unclear, with limited work done using metabolite profiling to study disease progression. OBJECTIVE The aim of this pilot study was to profile the plasma metabolomics in an animal model of Y. pestis infection. METHODS In this study, African Green monkeys were challenged with the highly virulent, aerosolized Y. pestis strain CO92, and untargeted metabolomics profiling of plasma was performed using liquid and gas chromatography with mass spectrometry. RESULTS At early time points post-exposure, we found significant increases in polyunsaturated, long chain fatty acid metabolites with p values ranging from as low as 0.000001 (ratio = 1.94) for the metabolite eicosapentaenoate to 0.04 (ratio = 1.36) for the metabolite adrenate when compared to time-matched controls. Multiple acyl carnitines metabolites were increased at earlier time points and could be a result of fatty acid oxidation defects with p values ranging from as low as 0.00001 (ratio = 2.95) for the metabolite octanoylcarnitine to 0.04 (ratio = 1.33) for metabolite deoxycarnitine when compared to time-matched controls. Dicarboxylic acids are important metabolic products of fatty acids oxidation, and when compared to time matched controls, were higher at earlier time points where metabolite tetradecanedioate has a ratio of 4.09 with significant p value of 0.000002 and adipate with a ratio of 1.12 and p value of 0.004. The metabolites from lysolipids (with significant p values ranging from 0.00006 for 1-oleoylglycerophosphoethanolamine to 0.04 for 1-stearoylglycerophosphoethanolamine and a ratio of 0.47 and 0.78, respectively) and bile acid metabolism (with significant p values ranging from 0.02 for cholate to 0.04 for deoxycholate and a ratio of 0.39 and 0.66, respectively) pathways were significantly lower compared to their time-matched controls during the entire course of infection. Metabolite levels from amino acid pathways were disrupted, and a few from the leucine, isoleucine and valine pathway were significantly higher (p values ranging from 0.002 to 0.04 and ratios ranging from 1.3 to 1.5, respectively), whereas metabolites from the urea cycle, arginine and proline pathways were significantly lower (p values ranging from 0.00008 to 0.02 and ratios ranging from 0.5 to 0.7, respectively) during the course of infection. CONCLUSIONS The involvement of several lipid pathways post-infection suggested activation of pathways linked to inflammation and oxidative stress. Metabolite data further showed increased energy demand, and multiple metabolites indicated potential hepatic dysfunction. Integration of blood metabolomics and transcriptomics data identified linoleate as a core metabolite with cross-talk with multiple genes from various time points. Collectively, the data from this study provided new insights into the mechanisms of Y. pestis pathogenesis that may aid in development of therapeutics.
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Affiliation(s)
- Aarti Gautam
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
| | - Seid Muhie
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
- The Geneva Foundation, Fort Detrick, MD, USA
| | - Nabarun Chakraborty
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
- The Geneva Foundation, Fort Detrick, MD, USA
| | - Allison Hoke
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
- The Geneva Foundation, Fort Detrick, MD, USA
| | - Duncan Donohue
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
- The Geneva Foundation, Fort Detrick, MD, USA
| | - Stacy Ann Miller
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
- The Geneva Foundation, Fort Detrick, MD, USA
| | - Rasha Hammamieh
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA
| | - Marti Jett
- US Army Center for Environmental Health Research, 568 Doughten Drive, Fort Detrick, MD, 21702, USA.
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Koelmel JP, Kroeger NM, Gill EL, Ulmer CZ, Bowden JA, Patterson RE, Yost RA, Garrett TJ. Expanding Lipidome Coverage Using LC-MS/MS Data-Dependent Acquisition with Automated Exclusion List Generation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:908-917. [PMID: 28265968 PMCID: PMC5408749 DOI: 10.1007/s13361-017-1608-0] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/13/2017] [Accepted: 01/15/2017] [Indexed: 05/19/2023]
Abstract
Untargeted omics analyses aim to comprehensively characterize biomolecules within a biological system. Changes in the presence or quantity of these biomolecules can indicate important biological perturbations, such as those caused by disease. With current technological advancements, the entire genome can now be sequenced; however, in the burgeoning fields of lipidomics, only a subset of lipids can be identified. The recent emergence of high resolution tandem mass spectrometry (HR-MS/MS), in combination with ultra-high performance liquid chromatography, has resulted in an increased coverage of the lipidome. Nevertheless, identifications from MS/MS are generally limited by the number of precursors that can be selected for fragmentation during chromatographic elution. Therefore, we developed the software IE-Omics to automate iterative exclusion (IE), where selected precursors using data-dependent topN analyses are excluded in sequential injections. In each sequential injection, unique precursors are fragmented until HR-MS/MS spectra of all ions above a user-defined intensity threshold are acquired. IE-Omics was applied to lipidomic analyses in Red Cross plasma and substantia nigra tissue. Coverage of the lipidome was drastically improved using IE. When applying IE-Omics to Red Cross plasma and substantia nigra lipid extracts in positive ion mode, 69% and 40% more molecular identifications were obtained, respectively. In addition, applying IE-Omics to a lipidomics workflow increased the coverage of trace species, including odd-chained and short-chained diacylglycerides and oxidized lipid species. By increasing the coverage of the lipidome, applying IE to a lipidomics workflow increases the probability of finding biomarkers and provides additional information for determining etiology of disease. Graphical Abstract ᅟ.
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Affiliation(s)
- Jeremy P Koelmel
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
| | - Nicholas M Kroeger
- College of Engineering, University of Florida, 412 Newell Drive, Gainesville, FL, 32611, USA
| | - Emily L Gill
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
| | - Candice Z Ulmer
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
- Hollings Marine Laboratory, National Institute of Standards and Technology, 331 Ft. Johnson Rd., Charleston, SC, 29412, USA
| | - John A Bowden
- Hollings Marine Laboratory, National Institute of Standards and Technology, 331 Ft. Johnson Rd., Charleston, SC, 29412, USA
| | - Rainey E Patterson
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
| | - Richard A Yost
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, PO BOX 13303, 1395 Center Dr, Gainesville, FL, 32610, USA
| | - Timothy J Garrett
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA.
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, PO BOX 13303, 1395 Center Dr, Gainesville, FL, 32610, USA.
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Montrose L, Ward TJ, Semmens EO, Cho YH, Brown B, Noonan CW. Dietary intake is associated with respiratory health outcomes and DNA methylation in children with asthma. Allergy Asthma Clin Immunol 2017; 13:12. [PMID: 28261276 PMCID: PMC5327515 DOI: 10.1186/s13223-017-0187-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 02/17/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Asthma is an increasingly common chronic disease among children, and data point toward a complex mechanism involving genetic, environmental and epigenetic factors. Epigenetic modifications such as DNA hypo- or hyper-methylation have been shown to occur in response to environmental exposures including dietary nutrients. METHODS Within the context of the asthma randomized trial of indoor wood smoke (ARTIS) study, we investigated relationships between diet, asthma health measures, and DNA methylation. Asthma health measures included a quality of life instrument, diurnal peak flow variability (dPFV) and forced expiratory volume in the first second (FEV1). Dietary intake was assessed with a food frequency questionnaire. Methylation levels of LINE-1 repetitive element and two promoter CpG sites for interferon gamma (IFNγ, -186 and -54) from buccal cell DNA were measured using pyrosequencing assays. RESULTS Data were collected on 32 children with asthma living in western Montana who were recruited to the ARTIS study. Selenium and several methyl donor dietary nutrients were positively associated with the asthma quality of life measure. Intake of methyl donating nutrients including folate was positively associated LINE-1 methylation and negatively associated with IFNγ CpG-186. Higher levels of LINE-1 methylation were associated with greater dPFV. CONCLUSION We identified several nutrients that were associated with improved quality of life measures among children with asthma. The IFNγ promoter CpG site -186 but not -54 was associated with the intake of selected dietary nutrients. However, in this small population of children with asthma, the IFNγ promoter CpG sites were not associated with respiratory health measures so it remains unclear through which epigenetic mechanism these nutrients are impacting the quality of life measure. These findings add to the evidence that dietary nutrients, particularly foods containing methyl donors, may be important for epigenetic regulation as it pertains to the control of asthma. Trial registration ClincialTrials.gov NCT00807183. Registered 10 December 2008.
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Affiliation(s)
- L Montrose
- School of Public Health, University of Michigan, 1420 Washington Heights, Ann Arbor, MI 48109 USA
| | - T J Ward
- Center for Environmental Health Sciences, University of Montana, 32 Campus Drive-159 Skaggs, Missoula, MT 59812 USA
| | - E O Semmens
- Center for Environmental Health Sciences, University of Montana, 32 Campus Drive-159 Skaggs, Missoula, MT 59812 USA
| | - Y H Cho
- Center for Environmental Health Sciences, University of Montana, 32 Campus Drive-159 Skaggs, Missoula, MT 59812 USA
| | - B Brown
- Department of Health and Human Performance, University of Montana, 32 Campus Drive, Missoula, MT 59812 USA
| | - C W Noonan
- Center for Environmental Health Sciences, University of Montana, 32 Campus Drive-159 Skaggs, Missoula, MT 59812 USA
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Harrison LM, Balan KV, Babu US. Dietary fatty acids and immune response to food-borne bacterial infections. Nutrients 2013; 5:1801-22. [PMID: 23698167 PMCID: PMC3708349 DOI: 10.3390/nu5051801] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 04/22/2013] [Accepted: 04/27/2013] [Indexed: 01/18/2023] Open
Abstract
Functional innate and acquired immune responses are required to protect the host from pathogenic bacterial infections. Modulation of host immune functions may have beneficial or deleterious effects on disease outcome. Different types of dietary fatty acids have been shown to have variable effects on bacterial clearance and disease outcome through suppression or activation of immune responses. Therefore, we have chosen to review research across experimental models and food sources on the effects of commonly consumed fatty acids on the most common food-borne pathogens, including Salmonella sp., Campylobacter sp., Shiga toxin-producing Escherichia coli, Shigella sp., Listeria monocytogenes, and Staphylococcus aureus. Altogether, the compilation of literature suggests that no single fatty acid is an answer for protection from all food-borne pathogens, and further research is necessary to determine the best approach to improve disease outcomes.
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Affiliation(s)
- Lisa M Harrison
- Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, Food and Drug Administration, 8301 Muirkirk Road, Laurel, MD 20708, USA.
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Ambrozova G, Pekarova M, Lojek A. Effect of polyunsaturated fatty acids on the reactive oxygen and nitrogen species production by raw 264.7 macrophages. Eur J Nutr 2009; 49:133-9. [PMID: 19784538 DOI: 10.1007/s00394-009-0057-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Accepted: 09/17/2009] [Indexed: 12/27/2022]
Abstract
BACKGROUND Polyunsaturated fatty acids (PUFAs) can affect various functions of the immune system including inflammatory responses. An oxidative burst of phagocytes accompanied by reactive oxygen species (ROS) and reactive nitrogen species (RNS) formation is one of the phagocyte functions that could be modulated by PUFAs. AIM OF THE STUDY To investigate the effects of omega-3 (alpha-linolenic, docosahexaenoic, eicosapentaenoic) and omega-6 (arachidonic, linoleic) PUFAs on lipopolysaccharide (LPS)-stimulated ROS and RNS production by the murine macrophage cell line RAW 264.7. METHODS Murine peritoneal macrophages RAW 264.7 were stimulated with LPS (0.1 microg/ml) and treated with 0.1-100 microM omega-3 or omega-6 PUFAs for either 8 (ROS production) or 20 h (RNS production). The cytotoxicity of PUFAs was evaluated by an ATP (adenosine triphosphate) test after both 8 and 20 h of treatment with PUFAs. Changes in ROS production by LPS-treated macrophages subsequently activated with phorbol myristate acetate (PMA) or opsonized zymosan particles (OZP) were determined by luminol-enhanced chemiluminescence, whilst the production of RNS was determined as the concentration of nitrites in cell supernatants (Griess reaction). Changes in inducible nitric oxide synthase (iNOS) expression were evaluated by Western blot analysis. The antioxidant properties of PUFAs were tested by TRAP (total peroxyl radical-trapping antioxidant parameter) assay. RESULTS All PUFAs in 100 microM concentration except eicosapentaenoic acid decreased ROS production. The effect was most significant when docosahexaenoic acid was used. Arachidonic acid decreased PMA-activated ROS production even in 1 and 10 microM concentrations. On the other hand, 10 and 100 microM eicosapentaenoic acid potentiated ROS production. As concerns RNS production, all the fatty acids that were tested in a concentration of 100 microM decreased iNOS expression and nitrite accumulation. Fatty acids had no significant effect on the viability and proliferation of RAW 264.7 cells. The TRAP assay confirmed that none of the tested PUFAs exerted any significant antioxidant properties. CONCLUSION High concentrations of PUFAs of both omega-3 and omega-6 groups can inhibit ROS and RNS formation by stimulated macrophages. The expression of iNOS can also be inhibited. This effect, together with the absence of antioxidant activity and cytotoxic properties, indicates that PUFAs can participate in the regulation of enzymes responsible for reactive species production.
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Affiliation(s)
- Gabriela Ambrozova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
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Puertollano MA, Cruz-Chamorro L, Puertollano E, Pérez-Toscano MT, Alvarez de Cienfuegos G, de Pablo MA. Assessment of interleukin-12, gamma interferon, and tumor necrosis factor alpha secretion in sera from mice fed with dietary lipids during different stages of Listeria monocytogenes infection. CLINICAL AND DIAGNOSTIC LABORATORY IMMUNOLOGY 2005; 12:1098-103. [PMID: 16148177 PMCID: PMC1235807 DOI: 10.1128/cdli.12.9.1098-1103.2005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Recent experimental observations have determined that long-chain n-3 polyunsaturated fatty acids suppress immune functions and are involved in the reduction of infectious disease resistance. BALB/c mice were fed for 4 weeks with one of four diets containing either olive oil (OO), fish oil (FO), hydrogenated coconut oil, or a low fat level. Interleukin-12p70 (IL-12p70), gamma interferon (IFN-gamma), and tumor necrosis factor alpha (TNF-alpha) production in the sera of mice fed these diets and challenged with Listeria monocytogenes were determined by enzyme-linked immunosorbent assay. In addition, bacterial counts from spleens of mice were carried out at 24, 72, or 96 h of infection. Here, we quantified an initial diminution of production of both IL-12p70 and IFN-gamma, which appear to play an important role in the reduction of host resistance to L. monocytogenes infection. In addition, an efficient elimination of L. monocytogenes was observed in spleens of mice fed a diet containing OO at 96 h of infection, despite reductions in IL-12p70 and TNF-alpha production, suggesting an improvement of immune resistance. Overall, our results indicate that the initial reduction of both IL-12 and IFN-gamma production before L. monocytogenes infection represents the most relevant event that corroborates the impairment of immune resistance by n-3 polyunsaturated fatty acids during the different stages of infection. However, we speculate that the modulation of other cytokines must be also involved in this response, because the alteration of cytokine production in mice fed an FO diet in a late phase of L. monocytogenes infection was similar to that in mice fed OO, whereas the ability to eliminate this bacterium from the spleen was improved in the latter group.
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Affiliation(s)
- María A Puertollano
- Department of health Sciences, Faculty of Experimental Sciences,University of Jaén, E-23071 Jaén, Spain
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