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Shusterman D. History of pollutant adjuvants in respiratory allergy. FRONTIERS IN ALLERGY 2024; 5:1374771. [PMID: 38533354 PMCID: PMC10964904 DOI: 10.3389/falgy.2024.1374771] [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: 01/22/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
Combined exposures to allergens and air pollutants emerged as a topic of concern in scientific circles by the 1980's, when it became clear that parallel increases in respiratory allergies and traffic-related air pollution had been occurring during the 20th century. Although historically there has been a tendency to treat exposure-related symptoms as either allergic or toxicologic in nature, cross-interactions have since been established between the two modalities. For example, exposure to selected air pollutants in concert with a given allergen can increase the likelihood that an individual will become sensitized to that allergen, strongly suggesting that the pollutant acted as an adjuvant. Although not a review of underlying mechanisms, the purpose of this mini-review is to highlight the potential significance of co-exposure to adjuvant chemicals in predicting allergic sensitization in the respiratory tract. The current discussion emphasizes the upper airway as a model for respiratory challenge studies, the results of which may be applicable-not only to allergic rhinitis-but also to conjunctivitis and asthma.
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Affiliation(s)
- Dennis Shusterman
- Upper Airway Biology Laboratory, Division of Occupational, Environmental and Climate Medicine, Department of Medicine, University of California, San Francisco, CA, United States
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2
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Henning RJ. Particulate Matter Air Pollution is a Significant Risk Factor for Cardiovascular Disease. Curr Probl Cardiol 2024; 49:102094. [PMID: 37734693 DOI: 10.1016/j.cpcardiol.2023.102094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Air pollution is responsible worldwide for 9-12 million deaths annually. The major contributor to air pollution is particulate matter ≤2.5 µg per cubic meter of air (PM2.5) from vehicles, industrial emissions, and wildfire smoke. United States ambient air standards recommend annual average PM2.5 concentrations of ≤12 μg/m³ while European standards allow an average annual PM2.5 concentration of ≤20 μg/m3. However, significant PM2.5 cardiovascular and pulmonary health risks exist below these concentrations. Chronic PM2.5 exposure significantly increases major cardiovascular and pulmonary event risks in Americans by 8 to more than 20% for each 10-μg/m3 increase in PM2.5. PM2.5-induced increases in lipid peroxidation, induction of vascular inflammation and endothelial cell injury initiate and propagate respiratory diseases, coronary and carotid atherosclerosis. PM2.5 can cause atherosclerotic vascular plaque rupture and myocardial infarction and stroke by activating metalloproteinases. This article discusses PM2.5 effects on the cardiovascular and pulmonary systems, specific PM2.5 pathophysiologic mechanisms contributing to cardiopulmonary disease, and preventive measures to limit the cardiovascular and pulmonary effects of PM2.5.
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Ribeiro M, Cardozo LF, Paiva BR, Baptista BG, Fanton S, Alvarenga L, Lima LS, Britto I, Nakao LS, Fouque D, Ribeiro-Alves M, Mafra D. Sulforaphane Supplementation Did Not Modulate NRF2 and NF-kB mRNA Expressions in Hemodialysis Patients. J Ren Nutr 2024; 34:68-75. [PMID: 37619675 DOI: 10.1053/j.jrn.2023.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/01/2023] [Accepted: 08/13/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Patients with chronic kidney disease (CKD) have reduced expression of erythroid nuclear factor-related factor 2 (NRF2) and increased nuclear factor κB (NF-κB). "Food as medicine" has been proposed as an adjuvant therapeutic alternative in modulating these factors. No studies have investigated the effects of sulforaphane (SFN) in cruciferous vegetables on the expression of these genes in patients with CKD. OBJECTIVE The study aimed to evaluate the effects of SFN on the expression of NRF2 and NF-κB in patients on hemodialysis (HD). DESIGN AND METHODS A randomized, double-blind, crossover study was performed on 30 patients on regular HD. Fourteen patients were randomly allocated to the intervention group (1 sachet/day of 2.5 g containing 1% SFN extract with 0.5% myrosinase) and 16 patients to the placebo group (1 sachet/day of 2.5 g containing corn starch colored with chlorophyll) for 2 months. After a washout period of 2 months, the groups were switched. NRF2 and NF-κB mRNA expression was evaluated by real-time quantitative polymerase chain reaction, and tumor necrosis factor alpha and interleukin-6 levels were quantified by enzyme-linked immunosorbent assay. Malondialdehyde was evaluated as a marker of lipid peroxidation. RESULTS Twenty-five patients (17 women, 55 [interquartile range = 19] years and 55 [interquartile range = 74] months on HD) completed the study. There was no significant difference concerning the expression of mRNA NRF2 (P = .915) and mRNA NF-κB (P = .806) after supplementation with SFN. There was no difference in pro-inflammatory and oxidative stress biomarkers. CONCLUSION 150 μmol of SFN for 2 months had no antioxidant and anti-inflammatory effect in patients with CKD undergoing HD.
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Affiliation(s)
- Marcia Ribeiro
- Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Ludmila Fmf Cardozo
- Graduate Program in Cardiovascular Sciences, Federal University Fluminense (UFF), Niterói, RJ, Brazil
| | - Bruna R Paiva
- Graduate Program in Cardiovascular Sciences, Federal University Fluminense (UFF), Niterói, RJ, Brazil
| | - Beatriz Germer Baptista
- Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Susane Fanton
- Graduate Program in Cardiovascular Sciences, Federal University Fluminense (UFF), Niterói, RJ, Brazil
| | - Livia Alvarenga
- Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil; Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Ligia Soares Lima
- Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Isadora Britto
- Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Lia S Nakao
- Federal University of Parana (UFPR), Department of Basic Pathology, Curitiba, Brazil
| | - Denis Fouque
- Department of Nephrology, Centre Hopitalier Lyon Sud, INSERM 1060, CENS, Université de Lyon, France
| | - Marcelo Ribeiro-Alves
- HIV/AIDS Clinical Research Center, National Institute of Infectology Evandro Chagas (INI/Fiocruz), Rio de Janeiro, Brazil
| | - Denise Mafra
- Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil; Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil.
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4
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Asif Ali M, Khan N, Kaleem N, Ahmad W, Alharethi SH, Alharbi B, Alhassan HH, Al-Enazi MM, Razis AFA, Modu B, Calina D, Sharifi-Rad J. Anticancer properties of sulforaphane: current insights at the molecular level. Front Oncol 2023; 13:1168321. [PMID: 37397365 PMCID: PMC10313060 DOI: 10.3389/fonc.2023.1168321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/16/2023] [Indexed: 07/04/2023] Open
Abstract
Sulforaphane (SFN) is an isothiocyanate with multiple biomedical applications. Sulforaphane can be extracted from the plants of the genus Brassica. However, broccoli sprouts are the chief source of sulforaphane and are 20 to 50 times richer than mature broccoli as they contain 1,153 mg/100 g. SFN is a secondary metabolite that is produced as a result of the hydrolysis of glucoraphanin (a glucosinolate) by the enzyme myrosinase. This review paper aims to summarize and understand the mechanisms behind the anticancer potential of sulforaphane. The data was collected by searching PubMed/MedLine, Scopus, Web of Science, and Google Scholar. This paper concludes that sulforaphane provides cancer protection through the alteration of various epigenetic and non-epigenetic pathways. It is a potent anticancer phytochemical that is safe to consume with minimal side effects. However, there is still a need for further research regarding SFN and the development of a standard dose.
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Affiliation(s)
- Muhammad Asif Ali
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Noohela Khan
- Department of Nutrition Sciences, Rashid Latif Medical College, Lahore, Pakistan
| | - Nabeeha Kaleem
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Waqas Ahmad
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Salem Hussain Alharethi
- Department of Biological Science, College of Arts and Science, Najran University, Najran, Saudi Arabia
| | - Bandar Alharbi
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha’il, Hail, Saudi Arabia
| | - Hassan H. Alhassan
- Department of Clinical Laboratory Science, College of Applied medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Maher M. Al-Enazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Ahmad Faizal Abdull Razis
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Babagana Modu
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Science, University of Maiduguri, Maiduguri, Borno, Nigeria
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, Romania
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Baralić K, Živančević K, Marić Đ, Bozic D, Buha Djordjevic A, Antonijević Miljaković E, Ćurčić M, Bulat Z, Antonijević B, Đukić-Ćosić D. Testing sulforaphane as a strategy against toxic chemicals of public health concern by toxicogenomic data analysis: Friend or foe at the gene level - Colorectal carcinoma case study. ENVIRONMENTAL RESEARCH 2023; 227:115818. [PMID: 37004859 DOI: 10.1016/j.envres.2023.115818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 05/08/2023]
Abstract
Toxic metals (cadmium (Cd), lead (Pb), mercury (Hg) and arsenic (As)) and plastificators (bis (2 - ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP)) and bisphenol A (BPA)) have been suggested to aid in colorectal carcinoma (CRC) advancement. Sulforaphane (SFN), isothiocyanate from cruciferous vegetables, diminishes chemical carcinogenesis susceptibility, but has been shown to act as a friend or a foe depending on various factors. By conducting the mechanistic toxicogenomic data mining approach, this research aimed to determine if SFN can alleviate toxic-metal and/or phthalate/BPA mixture-induced CRC at the gene level. Comparative Toxicogenomics Database, ToppGene Suite portal, Cytoscape software, InteractiVenn and Gene Expression Omnibus (GEO) database (GEO2R tool) was used. Among the mutual genes for all the investigated substances, SFN had a protective impact only through PTGS2. Other proposed protective SFN-targets included ABCA1, ALDH2, BMP2, DPYD, MYC, SLCO2A1, and SOD2, only in the case of phthalates/BPA exposure. The only additional gene relevant for SFN protection against the toxic metal mixture-induced CRC was ABCB1. Additionally, the majority of the top 15 molecular pathways extracted for SFN impact on phthalate and BPA mixture-linked CRC development were directly linked with cancer development, which was not the case with the toxic metal mixture. The current research has indicated that SFN is a more effective chemoprotective agent against CRC induced by phthalates/BPA mixture than by toxic-metal mixture. It has also presented the value of computational methods as a simple tool for directing further research, selecting appropriate biomarkers and exploring the mechanisms of toxicity.
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Affiliation(s)
- Katarina Baralić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia.
| | - Katarina Živančević
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia; University of Belgrade - Faculty of Biology, Institute of Physiology and Biochemistry "Ivan Djaja", Studentski trg3, Belgrade, Serbia
| | - Đurđica Marić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Dragica Bozic
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Aleksandra Buha Djordjevic
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Evica Antonijević Miljaković
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Marijana Ćurčić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Zorica Bulat
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Biljana Antonijević
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
| | - Danijela Đukić-Ćosić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221, Belgrade, Serbia
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Wu J, Cui S, Tang X, Zhang Q, Jin Y, Zhao J, Mao B, Zhang H. Bifidobacterium longum CCFM1206 Promotes the Biotransformation of Glucoraphanin to Sulforaphane That Contributes to Amelioration of Dextran-Sulfate-Sodium-Induced Colitis in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1100-1112. [PMID: 36604158 DOI: 10.1021/acs.jafc.2c07090] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Glucoraphanin, rich in broccoli seed extract (BSE), is generally inert but can be biotransformed into active sulforaphane by gut bacteria. This study aimed to screen probiotics with glucoraphanin-metabolizing ability and explore the effect of a combination of strain and BSE on colitis induced by dextran sulfate sodium (DSS) in mice. Bifidobacterium longum CCFM1206 was isolated from healthy adult feces. Ultra-high-performance liquid chromatography Q Exactive mass spectrometry analysis revealed the presence of sulforaphane, sulforaphane-l-cysteine, and erucin in the BSE supernatant fermented by B. longum CCFM1206 in vitro. Combined and individual interventions of BSE and B. longum CCFM1206 were applied to explore the effects on DSS-induced colitis. The results suggested that the combination of B. longum CCFM1206 and BSE could ameliorate colitis symptoms, relieve colonic inflammatory reactions and oxidative stress, and protect the intestinal barrier in DSS-induced mice. In comparison to the BSE intervention alone, the combined intervention of B. longum CCFM1206 and BSE promoted the generation of sulforaphane and sulforaphane-N-acetylcysteine in mice colon from 220.88 ± 19.81 to 333.99 ± 36.46 nmol/g and from 232.04 ± 26.48 to 297.50 ± 40.08 nmol/g dry weight feces, respectively. According to quantitative reverse transcription polymerase chain reaction and immunohistochemical analysis, B. longum CCFM1206 and BSE effectively activated the transcription and expression of genes related to the Nrf2 signaling pathway. These results were intended to elucidate that probiotics could elevate the bioactivity of dietary phytochemicals in vivo, and the combination had potential for therapeutic treatment of colitis.
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Affiliation(s)
- Jiaying Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Shumao Cui
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xin Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yan Jin
- The Affiliated Wuxi Second People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Bingyong Mao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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7
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Beneficial Effects of Sulforaphane-Yielding Broccoli Sprout on Cardiometabolic Health: A Systematic Review and Meta-Analysis. Jundishapur J Nat Pharm Prod 2022. [DOI: 10.5812/jjnpp-129402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Context: Cruciferous vegetables are complementary dietary therapies for disease prevention and health promotion. Sulforaphane-yielding broccoli sprouts are gaining popularity in managing cardiometabolic diseases. Objectives: Given the increasing prevalence of cardiometabolic diseases worldwide, this systematic review and meta-analysis aimed to study the cardiometabolic implications of broccoli sprout supplementation within the literature. Methods: Eligible literature was retrieved through Pubmed and Scopus up to June 2022. Results: Ten clinical trials investigating broccoli sprout supplementation and cardiometabolic health among human subjects were extracted for meta-analysis. The earliest study was published in 2004, and the most recent was released in 2019. Seven studies included control groups for valid comparison. Overall, the dietary intake of broccoli sprouts significantly reduced systolic (-10.9 mmHg; 95% confidence interval (CI): -17.0, -4.86) and diastolic (-6.95 mmHg; 95% CI: -10.6, -3.28) blood pressures. Marginally significant changes were also detected in blood lipid biomarkers compared to the baseline. Conclusions: Our results confirm the hypotensive properties of broccoli sprout and highlight the potential sulforaphane-dependent effects of this vegetable.
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Testai L, Pagnotta E, Piragine E, Flori L, Citi V, Martelli A, Mannelli LDC, Ghelardini C, Matteo R, Suriano S, Troccoli A, Pecchioni N, Calderone V. Cardiovascular benefits of Eruca sativa mill. Defatted seed meal extract: Potential role of hydrogen sulfide. Phytother Res 2022; 36:2616-2627. [PMID: 35478197 PMCID: PMC9320972 DOI: 10.1002/ptr.7479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 12/18/2022]
Abstract
Eruca sativa Mill. is an edible plant belonging to the Brassicaceae botanical family with a long story as a medicinal material, mainly linked to the presence of glucoerucin. One of the main products of this glucosinolate is erucin, a biologicallly active isothiocyanate recently recognized as a hydrogen sulfide (H2S) donor. In this work, an Eruca sativa extract has been obtained from a defatted seed meal (DSM), achieving a powder rich in thiofunctionalized glucosinolates, glucoerucin, and glucoraphanin, accounting for 95% and 5% of the total glucosinolate content (17% on a dry weight basis), associated with 13 identified phenolic acids and flavonoids accounting for 2.5%. In a cell‐free model, Eruca sativa DSM extract slowly released H2S. Moreover, this extract promoted significant hypotensive effects in hypertensive rats, and evoked dose‐dependent cardioprotection in in vivo model of acute myocardial infarct, obtained through a reversible coronary occlusion. This latter effect was sensitive to blockers of mitochondrial KATP and Kv7.4 potassium channels, suggesting a potential role of these mitochondrial channels in the protective effects of Eruca sativa DSM extract. Accordingly, Eruca sativa DSM extract reduced calcium uptake and apoptotic cell death in isolated cardiac mitochondria. Taken together, these results demonstrate that Eruca sativa DSM extract is endowed with an interesting nutraceutical profile on the cardiovascular system due to, at least in part, its H2S releasing properties. These results pave the way for future investigations on active metabolites.
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Affiliation(s)
- Lara Testai
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| | - Eleonora Pagnotta
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | | | - Lorenzo Flori
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Alma Martelli
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba- Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba- Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - Roberto Matteo
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | - Serafino Suriano
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Antonio Troccoli
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Nicola Pecchioni
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
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Gupta S, Burman S, Nair AB, Chauhan S, Sircar D, Roy P, Dhanwat M, Lahiri D, Mehta D, Das R, Khalil HE. Brassica oleracea Extracts Prevent Hyperglycemia in Type 2 Diabetes Mellitus. Prev Nutr Food Sci 2022; 27:50-62. [PMID: 35465108 PMCID: PMC9007711 DOI: 10.3746/pnf.2022.27.1.50] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/07/2022] [Accepted: 01/16/2022] [Indexed: 11/25/2022] Open
Abstract
This study investigated the protective effect of extracts from flowers of Brassica oleracea L. var. italica Plenck on type 2 diabetes mellitus and its associated disorders. Three different doses of each extract (petroleum ether, ethanol, and aqueous) were administered orally for 42 days. Biochemical parameters, behavioral studies, and histological studies were measured at different periods. Mortality was found to be nil up to 2,000 mg/kg. Statistically significant (P<0.001) improvement in serum glucose level was observed in the groups receiving 400 mg/kg of petroleum ether, aqueous, or ethanol extracts compared with the negative control group. Insulin level was decreased by aqueous extracts, whereas lipid profiles were improved by aqueous and ethanol extracts. A reduction in transfer latency was observed in treatments of all three extract types. Ethanol extract treatment (400 mg/kg) showed maximum percentage inhibition in a lipid peroxidation assay. Additionally, the aqueous and ethanol extract treatments markedly reduced tumor necrosis factor-α, interleukin-6, and glycosylated hemoglobin levels. Histological results showed that high doses of extracts alleviated the damages induced by type 2 diabetes mellitus in various organs and bones. Based on the results of this study, it can be concluded that B. oleracea has the potential to alleviate type 2 diabetes mellitus.
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Affiliation(s)
- Sumeet Gupta
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Satish Burman
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Samrat Chauhan
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Debabrata Sircar
- Department of Biotechnology, Indian Institute of Technology-Roorkee, Uttarakhand 247667, India
| | - Partha Roy
- Department of Biotechnology, Indian Institute of Technology-Roorkee, Uttarakhand 247667, India
| | - Meenakshi Dhanwat
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Debrupa Lahiri
- Department of Metallurgical and Materials Engineering and Centre of Nanotechnology, Indian Institute of Technology-Roorkee, Uttarakhand 247667, India
| | - Dinesh Mehta
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Rina Das
- Department of Pharmaceutical Sciences, M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Ambala, Haryana 133207, India
| | - Hany Ezzat Khalil
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
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Muz OE, Orhan C, Tuzcu M, Er B, Morde AA, Padigaru M, Ozercan IH, Sahin K. Protective Effect of Allyl Isothiocyanate in an Experimentally Induced Rat Model for Dry Eye Syndrome. Curr Eye Res 2022; 47:704-714. [PMID: 35176939 DOI: 10.1080/02713683.2021.2021538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
PURPOSE/AIM OF THE STUDY Growing evidence emphasizes the role of inflammation and oxidative stress in the pathogenesis of Dry Eye Syndrome (DES). Concordantly, the importance of agents targeting the inflammatory cascade and oxidative stress in the treatment is also progressively increasing. Herein, the study has investigated the protective effects and underlying mechanism of allyl isothiocyanate (AITC) on the ocular surface in a benzalkonium chloride (BAC)-induced dry eye rat model. MATERIALS AND METHODS A total of twenty-one Wistar albino rats were used to form the following three groups: Control, BAC, BAC + AITC. DES was established by topical application of BAC (four times daily for two weeks) in two groups, of which one group was treated with AITC (10 mg/kg BW daily oral dosage) for four weeks. Rats were monitored by dry eye diagnostic tests during the study period, and eventually, corneal tissues were used to evaluate for histopathologic analyzes and inflammatory and oxidative status. RESULTS A significant improvement was observed in various histopathologic and ophthalmologic findings, including tear volume, tear film integrity, ocular surface damage, ocular inflammatory signs, corneal thickness, and edema through AITC supplementation. AITC prominently balanced the inflammatory status and oxidative stress by lowering key proinflammatory mediators (NF-κB, TNF-α, IL-1β, IL-6, and IL-8) and increasing the activities of antioxidant enzymes (SOD, GSH-Px). Also, levels of protective tear proteins, including Muc1, Muc4, and Muc5 were recovered with AITC supplementation. CONCLUSION AITC alleviates clinical and histopathologic signs related to DES. Antioxidative and anti-inflammatory properties of AITC play a significant role in the mechanism of action.
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Affiliation(s)
- Omer Ersin Muz
- Department of Ophthalmology, Yunus Emre State Hospital, Eskisehir, Turkey
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Besir Er
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | | | | | | | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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Yusin J, Wang V, Henning SM, Yang J, Tseng CH, Thames G, Arnold I, Heber D, Lee RP, Sanavio L, Pan Y, Qin T, Li Z. The Effect of Broccoli Sprout Extract on Seasonal Grass Pollen-Induced Allergic Rhinitis. Nutrients 2021; 13:nu13041337. [PMID: 33920642 PMCID: PMC8074067 DOI: 10.3390/nu13041337] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/26/2021] [Accepted: 04/15/2021] [Indexed: 12/15/2022] Open
Abstract
Patients exposed to pollutants are more likely to suffer from allergic rhinitis and may benefit from antioxidant treatment. Our study determined if patients diagnosed with grass-induced allergic rhinitis could benefit from broccoli sprout extract (BSE) supplementation. In total, 47 patients were confirmed with grass-induced allergic rhinitis and randomized to one of four groups: group 1 (nasal steroid spray + BSE), group 2 (nasal steroid spray + placebo tablet), group 3 (saline nasal spray + BSE) and group 4 (saline nasal spray + placebo tablet). Peak Nasal Inspiratory Flow (PNIF), Total Nasal Symptoms Scores (TNSS) and nasal mucus cytokine levels were analyzed in samples collected before and after the 3-week intervention. Comparing before and after the intervention, PNIF improved significantly when comparing Groups 1 and 2, vs. placebo, at various time points (p ≤ 0.05 at 5, 15, 60 and 240 min) following nasal challenge, while TNSS was only statistically significant at 5 (p = 0.03), 15 (p = 0.057) and 30 (p = 0.05) minutes. There were no statistically significant differences in various cytokine markers before and after the intervention. Combining nasal corticosteroid with BSE led to the most significant improvement in objective measures.
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Affiliation(s)
- Joseph Yusin
- Department of Allergy and Immunology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (V.W.); (G.T.); (I.A.); (Z.L.)
- Correspondence: ; Tel.: +1-310-478-3711 (ext. 40230); Fax: +1-310-268-4712
| | - Vivian Wang
- Department of Allergy and Immunology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (V.W.); (G.T.); (I.A.); (Z.L.)
| | - Susanne M. Henning
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Jieping Yang
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Chi-Hong Tseng
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Gail Thames
- Department of Allergy and Immunology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (V.W.); (G.T.); (I.A.); (Z.L.)
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Irina Arnold
- Department of Allergy and Immunology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (V.W.); (G.T.); (I.A.); (Z.L.)
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - David Heber
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Ru-Po Lee
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Laura Sanavio
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Yajing Pan
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Tianyu Qin
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
| | - Zhaoping Li
- Department of Allergy and Immunology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (V.W.); (G.T.); (I.A.); (Z.L.)
- Department of Internal Medicine, University of California Los Angeles Medical Center, Los Angeles, CA 90095, USA; (S.M.H.); (J.Y.); (C.-H.T.); (D.H.); (R.-P.L.); (L.S.); (Y.P.); (T.Q.)
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Zandani G, Kaftori-Sandler N, Sela N, Nyska A, Madar Z. Dietary broccoli improves markers associated with glucose and lipid metabolism through modulation of gut microbiota in mice. Nutrition 2021; 90:111240. [PMID: 33931271 DOI: 10.1016/j.nut.2021.111240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/02/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Broccoli is a "functional food" that contains bioactive compounds and phytochemicals that have beneficial health-promoting effects. This study aimed at investigating the effects of broccoli consumption on lipid and glucose metabolism and gut microbiota. METHODS Male C57BL/6J mice (7-8 wk old) were fed ad libitum with a normal diet supplemented with or without 10% (w/w) broccoli florets or broccoli stalks. Oral glucose tolerance tests were performed at week 15. After 17 wk, blood and tissues were collected. Serum parameters, histology, gene and protein expression, and intestinal microbiota composition were evaluated. RESULTS Stalk supplementation led to reductions in fasting glucose levels, serum insulin, and the homeostasis model assessment-insulin resistance (HOMA-IR) index. Liver enzymes improved in both experimental groups, and broccoli florets decreased total triacylglycerols. The stalks group had elevated fatty acid oxidation-related genes and proteins (AMPK, PPARα, and CPT1). Diverse microbiota populations were observed in both broccoli groups. Broccoli stalks were found to be richer in Akkermansia muciniphila, while broccoli florets reduced Mucispirillum schaedleri abundance and increased bacterial richness. CONCLUSIONS Long-term whole broccoli supplementation decreased inflammation, improved lipid parameters and insulin sensitivity, and altered the gut microbiome in mice. Our data provide new information regarding the potential benefits of broccoli stalks in metabolic parameters.
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Affiliation(s)
- Gil Zandani
- Institute of Biochemistry, Food Science, and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | | | - Noa Sela
- Department of Plant Pathology and Weed Research, Volcani Center, Rishon LeZion, Israel
| | - Abraham Nyska
- Sackler School of Medicine, Tel Aviv University, Consultant in Toxicologic Pathology, Timrat, Israel
| | - Zecharia Madar
- Institute of Biochemistry, Food Science, and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
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Mongelli A, Atlante S, Barbi V, Bachetti T, Martelli F, Farsetti A, Gaetano C. Treating Senescence like Cancer: Novel Perspectives in Senotherapy of Chronic Diseases. Int J Mol Sci 2020; 21:ijms21217984. [PMID: 33121118 PMCID: PMC7663758 DOI: 10.3390/ijms21217984] [Citation(s) in RCA: 6] [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: 09/08/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/12/2022] Open
Abstract
The WHO estimated around 41 million deaths worldwide each year for age-related non-communicable chronic diseases. Hence, developing strategies to control the accumulation of cell senescence in living organisms and the overall aging process is an urgently needed problem of social relevance. During aging, many biological processes are altered, which globally induce the dysfunction of the whole organism. Cell senescence is one of the causes of this modification. Nowadays, several drugs approved for anticancer therapy have been repurposed to treat senescence, and others are under scrutiny in vitro and in vivo to establish their senomorphic or senolytic properties. In some cases, this research led to a significant increase in cell survival or to a prolonged lifespan in animal models, at least. Senomorphics can act to interfere with a specific pathway in order to restore the appropriate cellular function, preserve viability, and to prolong the lifespan. On the other hand, senolytics induce apoptosis in senescent cells allowing the remaining non–senescent population to preserve or restore tissue function. A large number of research articles and reviews recently addressed this topic. Herein, we would like to focus attention on those chemical agents with senomorphic or senolytic properties that perspectively, according to literature, suggest a potential application as senotherapeutics for chronic diseases.
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Affiliation(s)
- Alessia Mongelli
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (A.M.); (S.A.); (V.B.)
| | - Sandra Atlante
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (A.M.); (S.A.); (V.B.)
| | - Veronica Barbi
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (A.M.); (S.A.); (V.B.)
| | - Tiziana Bachetti
- Direzione Scientifica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy;
| | - Fabio Martelli
- Laboratorio di Cardiologia Molecolare, Policlinico San Donato IRCCS, San Donato Milanese, 20097 Milano; Italy,
| | - Antonella Farsetti
- Institute for Systems Analysis and Computer Science “A. Ruberti” (IASI), National Research Council (CNR), 00185 Rome, Italy
- Correspondence: (A.F.); (C.G.)
| | - Carlo Gaetano
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (A.M.); (S.A.); (V.B.)
- Correspondence: (A.F.); (C.G.)
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Role of Nrf2 and Its Activators in Respiratory Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7090534. [PMID: 30728889 PMCID: PMC6341270 DOI: 10.1155/2019/7090534] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/22/2018] [Accepted: 12/03/2018] [Indexed: 02/07/2023]
Abstract
Transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) is a major regulator of antioxidant response element- (ARE-) driven cytoprotective protein expression. The activation of Nrf2 signaling plays an essential role in preventing cells and tissues from injury induced by oxidative stress. Under the unstressed conditions, natural inhibitor of Nrf2, Kelch-like ECH-associated protein 1 (Keap1), traps Nrf2 in the cytoplasm and promotes the degradation of Nrf2 by the 26S proteasome. Nevertheless, stresses including highly oxidative microenvironments, impair the ability of Keap1 to target Nrf2 for ubiquitination and degradation, and induce newly synthesized Nrf2 to translocate to the nucleus to bind with ARE. Due to constant exposure to external environments, including diverse pollutants and other oxidants, the redox balance maintained by Nrf2 is fairly important to the airways. To date, researchers have discovered that Nrf2 deletion results in high susceptibility and severity of insults in various models of respiratory diseases, including bronchopulmonary dysplasia (BPD), respiratory infections, acute respiratory distress syndrome (ARDS), chronic obstructive pulmonary disease (COPD), asthma, idiopathic pulmonary fibrosis (IPF), and lung cancer. Conversely, Nrf2 activation confers protective effects on these lung disorders. In the present review, we summarize Nrf2 involvement in the pathogenesis of the above respiratory diseases that have been identified by experimental models and human studies and describe the protective effects of Nrf2 inducers on these diseases.
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Houghton CA. Sulforaphane: Its "Coming of Age" as a Clinically Relevant Nutraceutical in the Prevention and Treatment of Chronic Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2716870. [PMID: 31737167 PMCID: PMC6815645 DOI: 10.1155/2019/2716870] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/24/2019] [Accepted: 09/06/2019] [Indexed: 12/17/2022]
Abstract
A growing awareness of the mechanisms by which phytochemicals can influence upstream endogenous cellular defence processes has led to intensified research into their potential relevance in the prevention and treatment of disease. Pharmaceutical medicine has historically looked to plants as sources of the starting materials for drug development; however, the focus of nutraceutical medicine is to retain the plant bioactive in as close to its native state as possible. As a consequence, the potency of a nutraceutical concentrate or an extract may be lower than required for significant gene expression. The molecular structure of bioactive phytochemicals to a large extent determines the molecule's bioavailability. Polyphenols are abundant in dietary phytochemicals, and extensive in vitro research has established many of the signalling mechanisms involved in favourably modulating human biochemical pathways. Such pathways are associated with core processes such as redox modulation and immune modulation for infection control and for downregulating the synthesis of inflammatory cytokines. Although the relationship between oxidative stress and chronic disease continues to be affirmed, direct-acting antioxidants such as vitamins A, C, and E, beta-carotene, and others have not yielded the expected preventive or therapeutic responses, even though several large meta-analyses have sought to evaluate the potential benefit of such supplements. Because polyphenols exhibit poor bioavailability, few of their impressive in vitro findings have been replicated in vivo. SFN, an aliphatic isothiocyanate, emerges as a phytochemical with comparatively high bioavailability. A number of clinical trials have demonstrated its ability to produce favourable outcomes in conditions for which there are few satisfactory pharmaceutical solutions, foreshadowing the potential for SFN as a clinically relevant nutraceutical. Although myrosinase-inert broccoli sprout extracts are widely available, there now exist myrosinase-active broccoli sprout supplements that yield sufficient SFN to match the doses used in clinical trials.
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El-Wakf AM, Abdrabouh AE, Elgarieb AM. Effectiveness of steamed and cooked broccoli to attenuate bone marrow injury and suppressed haemopoiesis in male rats exposed to petrol vapours. ACTA ACUST UNITED AC 2018. [DOI: 10.1080/00207233.2018.1502956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Azza M. El-Wakf
- Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Abeer E. Abdrabouh
- Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Azza M. Elgarieb
- Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt
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Lasagni Vitar RM, Tau J, Janezic NS, Tesone AI, Hvozda Arana AG, Reides CG, Berra A, Ferreira SM, Llesuy SF. Diesel exhaust particles (DEP) induce an early redox imbalance followed by an IL-6 mediated inflammatory response on human conjunctival epithelial cells. Exp Eye Res 2018. [DOI: 10.1016/j.exer.2018.03.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Uh ST, Koo SM, Kim Y, Kim K, Park S, Jang AS, Kim D, Kim YH, Park CS. The activation of NLRP3-inflammsome by stimulation of diesel exhaust particles in lung tissues from emphysema model and RAW 264.7 cell line. Korean J Intern Med 2017; 32:865-874. [PMID: 28814068 PMCID: PMC5583452 DOI: 10.3904/kjim.2016.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 07/14/2016] [Accepted: 10/06/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/AIMS Diesel exhaust particles (DEPs) lead to elevation of reactive oxygen species, which can activate the nucleotide-binding oligomerization domain-like receptor (NLR) family members containing the pyrin domain 3 (NLRP3)-inf lammasome. In this study, we elucidated whether NLRP3 -inf lammasome is activated by DEPs and whether antioxidants (N-acetylcysteine [NAC]) could inhibit such activation. METHODS RAW 264.7 cells and ex vivo lung tissues explants obtained from elastase-induced emphysema animal models were stimulated with cigarette smoking extract (CSE), DEPs, and lipopolysaccharide, and levels of interleukin-1β (IL-1β), caspase-1 and nucleotide-binding oligomerization domain-like receptor (NLR) family members containing the pyrin domain (NLRP3)-inflammasome were assessed by Western blotting and immunohistochemistry. RESULTS NAC and caspase-1 inhibitor suppressed CSE- and DEP-induced secretion of IL-1β in RAW 264.7 cells. The expression levels of the NLRP3-inflammasome and caspase-1 were upregulated in RAW 264.7 cells by stimulation with CSE and DEPs and were inhibited by NAC. CSE and DEPs increased the secretion of IL-1β in lung tissues from both the normal and elastase-induced emphysema groups. The secretion of IL-1β by CSE and DEPs was increased in the elastin-induced emphysema group more than that in the normal group (CSE: 309 ± 19 pg/mL vs. 151 ± 13 pg/mL, respectively, p < 0.05; DEP: 350 ± 24 pg/mL vs. 281 ± 15 pg/mL, respectively, p < 0.05). NAC inhibited CSE- and DEP-induced IL-1β secretion in both the normal and elastase-induced emphysema groups. NLRP3-inflammasome expression as determined by immunohistochemistry was increased by CSE and DEPs in both the normal and elastin-induced emphysema groups, and was suppressed by NAC. CONCLUSIONS The NLRP3-inf lammasome is activated by DEPs in ex vivo tissue explants from elastase-induced emphysema animal model, and this activation is inhibited by NAC.
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Affiliation(s)
- Soo-Taek Uh
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - So My Koo
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Yangki Kim
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Kiup Kim
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Sungwoo Park
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - An Soo Jang
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - Dojin Kim
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - Yong Hoon Kim
- Division of Respiratory Medicine, Soon Chun Hyang University Cheonan Hospital, Cheonan, Korea
| | - Choon-Sik Park
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
- Correspondence to Choon-Sik Park, M.D. Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soon Chun Hyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon 14584, Korea Tel: +82-32-621-5105 Fax: +82-32-621-5023 E-mail:
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Petropoulos S, Di Gioia F, Ntatsi G. Vegetable Organosulfur Compounds and their Health Promoting Effects. Curr Pharm Des 2017; 23:2850-2875. [DOI: 10.2174/1381612823666170111100531] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 01/03/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Spyridon Petropoulos
- University of Thessaly, School of Agricultural Sciences, Fytokou Street, 38446, N. Ionia, Magnissia, Greece
| | - Francesco Di Gioia
- Institute of Food and Agricultural Sciences, South West Florida Research and Education Center, University of Florida, Immokalee, Florida
| | - Georgia Ntatsi
- Faculty of Crop Science, Agricultural University of Athens, Athens, Greece
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Becker TM, Juvik JA. The Role of Glucosinolate Hydrolysis Products from Brassica Vegetable Consumption in Inducing Antioxidant Activity and Reducing Cancer Incidence. Diseases 2016; 4:E22. [PMID: 28933402 PMCID: PMC5456278 DOI: 10.3390/diseases4020022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/31/2016] [Accepted: 06/03/2016] [Indexed: 12/14/2022] Open
Abstract
The bioactivity of glucosinolates (GSs), and more specifically their hydrolysis products (GSHPs), has been well documented. These secondary metabolites evolved in the order Brassicales as plant defense compounds with proven ability to deter or impede the growth of several biotic challenges including insect infestation, fungal and bacterial infection, and competition from other plants. However, the bioactivity of GSHPs is not limited to activity that inhibits these kingdoms of life. Many of these compounds have been shown to have bioactivity in mammalian systems as well, with epidemiological links to cancer chemoprevention in humans supported by in vitro, in vivo, and small clinical studies. Although other chemopreventive mechanisms have been identified, the primary mechanism believed to be responsible for the observed chemoprevention from GSHPs is the induction of antioxidant enzymes, such as NAD(P)H quinone reductase (NQO1), heme oxygenase 1 (HO-1), glutamate-cysteine ligase catalytic subunit (GCLC), and glutathione S transferases (GSTs), through the Keap1-Nrf2-ARE signaling pathway. Induction of this pathway is generally associated with aliphatic isothiocyanate GSHPs, although some indole-derived GSHPs have also been associated with induction of one or more of these enzymes.
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Affiliation(s)
- Talon M Becker
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801-3838, USA.
| | - John A Juvik
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801-3838, USA.
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Phytochemical Compounds and Protection from Cardiovascular Diseases: A State of the Art. BIOMED RESEARCH INTERNATIONAL 2015; 2015:918069. [PMID: 26504846 PMCID: PMC4609427 DOI: 10.1155/2015/918069] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 06/14/2015] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases represent a worldwide relevant socioeconomical problem. Cardiovascular disease prevention relies also on lifestyle changes, including dietary habits. The cardioprotective effects of several foods and dietary supplements in both animal models and in humans have been explored. It was found that beneficial effects are mainly dependent on antioxidant and anti-inflammatory properties, also involving modulation of mitochondrial function. Resveratrol is one of the most studied phytochemical compounds and it is provided with several benefits in cardiovascular diseases as well as in other pathological conditions (such as cancer). Other relevant compounds are Brassica oleracea, curcumin, and berberine, and they all exert beneficial effects in several diseases. In the attempt to provide a comprehensive reference tool for both researchers and clinicians, we summarized in the present paper the existing literature on both preclinical and clinical cardioprotective effects of each mentioned phytochemical. We structured the discussion of each compound by analyzing, first, its cellular molecular targets of action, subsequently focusing on results from applications in both ex vivo and in vivo models, finally discussing the relevance of the compound in the context of human diseases.
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Brown RH, Reynolds C, Brooker A, Talalay P, Fahey JW. Sulforaphane improves the bronchoprotective response in asthmatics through Nrf2-mediated gene pathways. Respir Res 2015; 16:106. [PMID: 26369337 PMCID: PMC4570035 DOI: 10.1186/s12931-015-0253-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/21/2015] [Indexed: 01/16/2023] Open
Abstract
Background It is widely recognized that deep inspiration (DI), either before methacholine (MCh) challenge (Bronchoprotection, BP) or after MCh challenge (Bronchodilation, BD) protects against this challenge in healthy individuals, but not in asthmatics. Sulforaphane, a dietary antioxidant and antiinflammatory phytochemical derived from broccoli, may affect the pulmonary bronchoconstrictor responses to MCh and the responses to DI in asthmatic patients. Methods Forty-five moderate asthmatics were administered sulforaphane (100 μmol daily for 14 days), BP, BD, lung volumes by body-plethsmography, and airway morphology by computed tomography (CT) were measured pre- and post sulforaphane consumption. Results Sulforaphane ameliorated the bronchoconstrictor effects of MCh on FEV1 significantly (on average by 21 %; p = 0.01) in 60 % of these asthmatics. Interestingly, in 20 % of the asthmatics, sulforaphane aggravated the bronchoconstrictor effects of MCh and in a similar number was without effect, documenting the great heterogeneity of the responsiveness of these individuals to sulforaphane. Moreover, in individuals in whom the FEV1 response to MCh challenge decreased after sulforaphane administration, i.e., sulforaphane was protective, the activities of Nrf2-regulated antioxidant and anti-inflammatory genes decreased. In contrast, individuals in whom sulforaphane treatment enhanced the FEV1 response to MCh, had increased expression of the activities of these genes. High resolution CT scans disclosed that in asthmatics sulforaphane treatment resulted in a significant reduction in specific airway resistance and also increased small airway luminal area and airway trapping modestly but significantly. Conclusion These findings suggest the potential value of blocking the bronchoconstrictor hyperresponsiveness in some types of asthmatics by phytochemicals such as sulforaphane.
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Affiliation(s)
- Robert H Brown
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Division of Pulmonary Medicine and Critical Care, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Environmental Health Sciences, Johns Hopkins University School of Public Health, Room E7614, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
| | - Curt Reynolds
- Department of Environmental Health Sciences, Johns Hopkins University School of Public Health, Room E7614, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Allison Brooker
- Department of Environmental Health Sciences, Johns Hopkins University School of Public Health, Room E7614, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Paul Talalay
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Center for Human Nutrition, Department of International Health, Johns Hopkins University School of Public Health, Baltimore, MD, USA
| | - Jed W Fahey
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Center for Human Nutrition, Department of International Health, Johns Hopkins University School of Public Health, Baltimore, MD, USA
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Tortorella SM, Royce SG, Licciardi PV, Karagiannis TC. Dietary Sulforaphane in Cancer Chemoprevention: The Role of Epigenetic Regulation and HDAC Inhibition. Antioxid Redox Signal 2015; 22:1382-424. [PMID: 25364882 PMCID: PMC4432495 DOI: 10.1089/ars.2014.6097] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE Sulforaphane, produced by the hydrolytic conversion of glucoraphanin after ingestion of cruciferous vegetables, particularly broccoli and broccoli sprouts, has been extensively studied due to its apparent health-promoting properties in disease and limited toxicity in normal tissue. Recent Studies: Recent identification of a sub-population of tumor cells with stem cell-like self-renewal capacity that may be responsible for relapse, metastasis, and resistance, as a potential target of the dietary compound, may be an important aspect of sulforaphane chemoprevention. Evidence also suggests that sulforaphane may target the epigenetic alterations observed in specific cancers, reversing aberrant changes in gene transcription through mechanisms of histone deacetylase inhibition, global demethylation, and microRNA modulation. CRITICAL ISSUES In this review, we discuss the biochemical and biological properties of sulforaphane with a particular emphasis on the anticancer properties of the dietary compound. Sulforaphane possesses the capacity to intervene in multistage carcinogenesis through the modulation and/or regulation of important cellular mechanisms. The inhibition of phase I enzymes that are responsible for the activation of pro-carcinogens, and the induction of phase II enzymes that are critical in mutagen elimination are well-characterized chemopreventive properties. Furthermore, sulforaphane mediates a number of anticancer pathways, including the activation of apoptosis, induction of cell cycle arrest, and inhibition of NFκB. FUTURE DIRECTIONS Further characterization of the chemopreventive properties of sulforaphane and its capacity to be selectively toxic to malignant cells are warranted to potentially establish the clinical utility of the dietary compound as an anti-cancer compound alone, and in combination with clinically relevant therapeutic and management strategies.
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Affiliation(s)
- Stephanie M Tortorella
- 1 Epigenomic Medicine, Baker IDI Heart and Diabetes Institute, The Alfred Medical Research and Education Precinct , Melbourne, Australia
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Meyer M, Jaspers I. Respiratory protease/antiprotease balance determines susceptibility to viral infection and can be modified by nutritional antioxidants. Am J Physiol Lung Cell Mol Physiol 2015; 308:L1189-201. [PMID: 25888573 DOI: 10.1152/ajplung.00028.2015] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 04/13/2015] [Indexed: 12/13/2022] Open
Abstract
The respiratory epithelium functions as a central orchestrator to initiate and organize responses to inhaled stimuli. Proteases and antiproteases are secreted from the respiratory epithelium and are involved in respiratory homeostasis. Modifications to the protease/antiprotease balance can lead to the development of lung diseases such as emphysema or chronic obstructive pulmonary disease. Furthermore, altered protease/antiprotease balance, in favor for increased protease activity, is associated with increased susceptibility to respiratory viral infections such as influenza virus. However, nutritional antioxidants induce antiprotease expression/secretion and decrease protease expression/activity, to protect against viral infection. As such, this review will elucidate the impact of this balance in the context of respiratory viral infection and lung disease, to further highlight the role epithelial cell-derived proteases and antiproteases contribute to respiratory immune function. Furthermore, this review will offer the use of nutritional antioxidants as possible therapeutics to boost respiratory mucosal responses and/or protect against infection.
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Affiliation(s)
- Megan Meyer
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ilona Jaspers
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Li N, Bhattacharya P, Karavalakis G, Williams K, Gysel N, Rivera-Rios N. Emissions from commercial-grade charbroiling meat operations induce oxidative stress and inflammatory responses in human bronchial epithelial cells. Toxicol Rep 2014; 1:802-811. [PMID: 28962293 PMCID: PMC5598377 DOI: 10.1016/j.toxrep.2014.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/19/2014] [Accepted: 09/24/2014] [Indexed: 01/06/2023] Open
Abstract
Commercial charbroiling emissions are a significant source of ambient particulate matter (PM) in urban settings. The objective of this study was to determine whether organic extract of PM emissions from commercial charbroiling meat operations could induce an inflammatory response in human bronchial epithelial cells and whether this effect was mediated by oxidative stress. PM samples were collected during cooking hamburgers on a commercial-grade under-fired charbroiler and sequentially extracted with water and methanol to obtain the aqueous PM suspension (AqPM) and organic extract (OE). The pro-oxidative and pro-inflammatory effects of OE were assessed using human bronchial epithelial cell line BEAS-2B. While AqPM did not have any effect, OE effectively induced the expression of heme oxygennase-1 and cyclooxygenase-2 in BEAS-2B cells. OE also up-regulated the levels of IL-6, IL-8, and prostaglandin E2. OE-induced cellular inflammatory response could be effectively suppressed by the antioxidant N-acetyl cysteine, nuclear factor (erythroid-derived 2)-like 2 activator sulforaphane and p38 MAPK inhibitor SB203580. In conclusion, organic chemicals emitted from commercial charbroiling meat operations could induce an inflammatory response in human bronchial epithelial cells, which was mediated by oxidative stress and p38 MAPK.
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Key Words
- AqPM, aqueous PM suspension
- COX, cyclooxygenase
- Commercial charbroiling meat emissions
- DEP, diesel exhaust particles
- Environmental and occupational health
- HO-1, heme oxygenase-1
- Human bronchial epithelial cells
- Inflammatory response
- MAPK, mitogen activated protein kinase
- NAC, N-acetyl cysteine
- OC, organic carbon
- OE, organic extract
- Oxidative stress
- PAH, polycyclic aromatic hydrocarbon
- PG, prostaglandin
- PM, particulate matter
- SFN, sulforaphane
- SOD2, superoxide dismutase 2
- TSLP, thymic stromal lymphopoietin
- UFP, ultrafine particles
- p38 MAPK
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Affiliation(s)
- Ning Li
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Poulomi Bhattacharya
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Georgios Karavalakis
- Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, Riverside, CA, USA
| | - Keisha Williams
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Nicholas Gysel
- Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, Riverside, CA, USA
| | - Nachamari Rivera-Rios
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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Noah TL, Zhang H, Zhou H, Glista-Baker E, Müller L, Bauer RN, Meyer M, Murphy PC, Jones S, Letang B, Robinette C, Jaspers I. Effect of broccoli sprouts on nasal response to live attenuated influenza virus in smokers: a randomized, double-blind study. PLoS One 2014; 9:e98671. [PMID: 24910991 PMCID: PMC4049587 DOI: 10.1371/journal.pone.0098671] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 04/30/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Smokers have increased susceptibility and altered innate host defense responses to influenza virus infection. Broccoli sprouts are a source of the Nrf2 activating agentsulforaphane, and short term ingestion of broccoli sprout homogenates (BSH) has been shown to reduce nasal inflammatory responses to oxidant pollutants. OBJECTIVES Assess the effects of BSH on nasal cytokines, virus replication, and Nrf2-dependent enzyme expression in smokers and nonsmokers. METHODS We conducted a randomized, double-blind, placebo-controlled trial comparing the effects of BSH on serially sampled nasal lavage fluid (NLF) cytokines, viral sequence quantity, and Nrf2-dependent enzyme expression in NLF cells and biopsied epithelium. Healthy young adult smokers and nonsmokers ingested BSH or placebo (alfalfa sprout homogenate) for 4 days, designated Days -1, 0, 1, 2. On Day 0 they received standard vaccine dose of live attenuated influenza virus (LAIV) intranasally. Nasal lavage fluids and nasal biopsies were collected serially to assess response to LAIV. RESULTS In area under curve analyses, post-LAIV IL-6 responses (P = 0.03) and influenza sequences (P = 0.01) were significantly reduced in NLF from BSH-treated smokers, while NAD(P)H quinoneoxidoreductasein NLF cells was significantly increased. In nonsmokers, a similar trend for reduction in virus quantity with BSH did not reach statistical significance. CONCLUSIONS In smokers, short term ingestion of broccoli sprout homogenates appears to significantly reduce some virus-induced markers of inflammation, as well as reducing virus quantity. Nutritional antioxidant interventions have promise as a safe, low-cost strategy for reducing influenza risk among smokers and other at risk populations. TRIAL REGISTRATION ClinicalTrials.gov NCT01269723.
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Affiliation(s)
- Terry L. Noah
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- * E-mail:
| | - Hongtao Zhang
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Haibo Zhou
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Ellen Glista-Baker
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Loretta Müller
- University Children's Hospital Basel, Basel, Switzerland
| | - Rebecca N. Bauer
- Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Megan Meyer
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Paula C. Murphy
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Shannon Jones
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Blanche Letang
- Biological and Biomedical Sciences Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Carole Robinette
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Ilona Jaspers
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
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Mirmiran P, Bahadoran Z, Golzarand M, Zojaji H, Azizi F. A comparative study of broccoli sprouts powder and standard triple therapy on cardiovascular risk factors following H.pylori eradication: a randomized clinical trial in patients with type 2 diabetes. J Diabetes Metab Disord 2014; 13:64. [PMID: 24940565 PMCID: PMC4060758 DOI: 10.1186/2251-6581-13-64] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 05/03/2014] [Indexed: 12/30/2022]
Abstract
Background In this clinical trial we compared the effects of broccoli sprouts powder, as an alternative and complementary treatment, to those of standard triple therapy, as a common medical treatment, on cardiovascular risk factors following the H.pylori eradication in patients with type 2 diabetes. Methods Eighty-six type 2 diabetic patients with positive H.pylori stool antigen test (HpSAg) were randomized to receive one of the three following regimens: STT) Standard triple therapy (omeprazole 20 mg, clarithromycin 500 mg, amoxicillin 1000 mg, twice a day for 14 days), BSP) 6 g/d broccoli sprouts powder for 28 days, and combination of these as STT + BSP. After 4 weeks of treatment, H.pylori eradication rates were assessed by HpSAg. Anthropometric measures, blood pressure, serum lipids and lipoproteins as well as serum high sensitive- C reactive protein were also assessed at baseline and at the second examination. Results Seventy-seven participants completed the study [STT (n = 28), BSP (n = 25), STT + BSP (n = 24)]. The H.pylori eradication rates were 89.3%, 56.0% and 91.7% in STT, BSP and STT + BSP groups, respectively. After the treatment, both systolic and diastolic blood pressure significantly decreased in STT + BSP group (P < 0.05). Serum triglycerides and TG/HDL-C ratio increased in STT patients group (<0.05). Serum hs-CRP levels significantly decreased in the patients who were treated with BSP per se (3.0 ± 2.5 at baseline vs. 2.3 ± 2.1 after the treatment, P < 0.05). Conclusion Compared to standard triple therapy, BSP regimen in addition to considerable effects on H.pylori eradication had also favorable properties on cardiovascular risk factors following the H.pylori eradication.
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Affiliation(s)
- Parvin Mirmiran
- Nutrition and Endocrine Research Center, and Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran ; Department of Clinical Nutrition and Diet Therapy, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Bahadoran
- Nutrition and Endocrine Research Center, and Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdieh Golzarand
- Nutrition and Endocrine Research Center, and Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homayoun Zojaji
- Research Center for Gastroenterology and Liver Disease, Department of Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, P.O.Box: 19395-4763, Tehran, Iran
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Choi YJ, Lee WS, Lee EG, Sung MS, Yoo WH. Sulforaphane Inhibits IL-1β-Induced Proliferation of Rheumatoid Arthritis Synovial Fibroblasts and the Production of MMPs, COX-2, and PGE2. Inflammation 2014; 37:1496-503. [DOI: 10.1007/s10753-014-9875-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Houghton CA, Fassett RG, Coombes JS. Sulforaphane: translational research from laboratory bench to clinic. Nutr Rev 2013; 71:709-26. [PMID: 24147970 DOI: 10.1111/nure.12060] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Cruciferous vegetables are widely acknowledged to provide chemopreventive benefits in humans, but they are not generally consumed at levels that effect significant change in biomarkers of health. Because consumers have embraced the notion that dietary supplements may prevent disease, this review considers whether an appropriately validated sulforaphane-yielding broccoli sprout supplement may deliver clinical benefit. The crucifer-derived bioactive phytochemical sulforaphane is a significant inducer of nuclear factor erythroid 2-related factor 2 (Nrf2), the transcription factor that activates the cell's endogenous defenses via a battery of cytoprotective genes. For a broccoli sprout supplement to demonstrate bioactivity in vivo, it must retain both the sulforaphane-yielding precursor compound, glucoraphanin, and the activity of glucoraphanin's intrinsic myrosinase enzyme. Many broccoli sprout supplements are myrosinase inactive, but current labeling does not reflect this. For the benefit of clinicians and consumers, this review summarizes the findings of in vitro studies and clinical trials, interpreting them in the context of clinical relevance. Standardization of sulforaphane nomenclature and assay protocols will be necessary to remove inconsistency and ambiguity in the labeling of currently available broccoli sprout products.
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Affiliation(s)
- Christine A Houghton
- School of Human Movement Studies, University of Queensland, Brisbane, Queensland, Australia
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Li YJ, Shimizu T, Hirata Y, Inagaki H, Takizawa H, Azuma A, Kawada T, Sugawara I, Kudoh S, Sunazuka T, Omura S. EM, EM703 inhibit NF-kB activation induced by oxidative stress from diesel exhaust particle in human bronchial epithelial cells: Importance in IL-8 transcription. Pulm Pharmacol Ther 2013; 26:318-24. [DOI: 10.1016/j.pupt.2012.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 12/13/2012] [Accepted: 12/24/2012] [Indexed: 01/17/2023]
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Bahadoran Z, Mirmiran P, Azizi F. Potential efficacy of broccoli sprouts as a unique supplement for management of type 2 diabetes and its complications. J Med Food 2013; 16:375-82. [PMID: 23631497 DOI: 10.1089/jmf.2012.2559] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Functional foods and their nutraceutical components are now considered as supplementary treatments in type 2 diabetes and prevention of its long-term complications. Young broccoli sprouts as a functional food contain many bioactive compounds specially sulforaphane. In hyperglycemic and oxidative conditions, sulforaphane has the potential to activate the NF-E2-related factor-2 (Nrf2)-dependent antioxidant response-signaling pathway, induces phase 2 enzymes, attenuates oxidative stress, and inactivates nuclear factor kappa-B (NF-κB), a key modulator of inflammatory pathways. Interestingly, sulforaphane induces some peroxisome proliferator-activated receptors, which contribute to lipid metabolism and glucose homeostasis. In animal and in vitro models, sulforaphane also shows antihypertensive, anticancer, cardioprotective, and hypocholesterolemic capacity, and has bactericidal properties against Helicobacter pylori. Supplementation of type 2 diabetics with high sulforaphane content broccoli sprouts resulted in increased total antioxidant capacity of plasma and in decreased oxidative stress index, lipid peroxidation, serum triglycerides, oxidized low-density lipoprotein (LDL)/LDL-cholesterol ratio, serum insulin, insulin resistance, and serum high-sensitive C-reactive protein. Sulforaphane could prevent nephropathy, diabetes-induced fibrosis, and vascular complications. Potential efficacy of sulforaphane and probably other bioactive components of young broccoli sprouts makes it as an excellent choice for supplementary treatment in type 2 diabetes.
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Affiliation(s)
- Zahra Bahadoran
- Obesity Research Centers, Research Institute for Endocrine Sciences
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Nrf2 is a protective factor against oxidative stresses induced by diesel exhaust particle in allergic asthma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:323607. [PMID: 23738037 PMCID: PMC3655666 DOI: 10.1155/2013/323607] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/18/2013] [Accepted: 04/08/2013] [Indexed: 11/18/2022]
Abstract
Epidemiological studies have shown that air pollutants, such as diesel exhaust particle (DEP), are implicated in the increased incidence of allergic airway disorders. In vitro studies of molecular mechanisms have focused on the role of reactive oxygen species generated directly and indirectly by the exposure to DEP. Antioxidants effectively reduce the allergic inflammatory effects induced by DEP both in vitro and in vivo. On the other hand, Nrf2 is a transcription factor essential for the inducible and/or constitutive expression of phase II and antioxidant enzymes. Disruption of Nrf2 enhances susceptibility to airway inflammatory responses and exacerbation of allergic inflammation induced by DEP in mice. Host responses to DEP are regulated by a balance between antioxidants and proinflammatory responses. Nrf2 may be an important protective factor against oxidative stresses induced by DEP in airway inflammation and allergic asthma and is expected to contribute to chemoprevention against DEP health effects in susceptible individuals.
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Inflammation-related effects of diesel engine exhaust particles: studies on lung cells in vitro. BIOMED RESEARCH INTERNATIONAL 2013; 2013:685142. [PMID: 23509760 PMCID: PMC3586454 DOI: 10.1155/2013/685142] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/04/2013] [Accepted: 01/15/2013] [Indexed: 01/17/2023]
Abstract
Diesel exhaust and its particles (DEP) have been under scrutiny for health effects in humans. In the development of these effects inflammation is regarded as a key process. Overall, in vitro studies report similar DEP-induced changes in markers of inflammation, including cytokines and chemokines, as studies in vivo. In vitro studies suggest that soluble extracts of DEP have the greatest impact on the expression and release of proinflammatory markers. Main DEP mediators of effects have still not been identified and are difficult to find, as fuel and engine technology developments lead to continuously altered characteristics of emissions. Involved mechanisms remain somewhat unclear. DEP extracts appear to comprise components that are able to activate various membrane and cytosolic receptors. Through interactions with receptors, ion channels, and phosphorylation enzymes, molecules in the particle extract will trigger various cell signaling pathways that may lead to the release of inflammatory markers directly or indirectly by causing cell death. In vitro studies represent a fast and convenient system which may have implications for technology development. Furthermore, knowledge regarding how particles elicit their effects may contribute to understanding of DEP-induced health effects in vivo, with possible implications for identifying susceptible groups of people and effect biomarkers.
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Meyer M, Kesic MJ, Clarke J, Ho E, Simmen RCM, Diaz-Sanchez D, Noah TL, Jaspers I. Sulforaphane induces SLPI secretion in the nasal mucosa. Respir Med 2012. [PMID: 23195333 DOI: 10.1016/j.rmed.2012.11.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cells lining the respiratory tract are equipped with mechanisms that dampen the effects of oxidative stress. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is a mediator involved in regulating oxidative stress. Recent data indicate Nrf2 also controls expression of secretory leukocyte protease inhibitor (SLPI). Sulforaphane (SFN), an isothiocyanate found in cruciferous vegetables, enhances Nrf2 activity. Therefore, we hypothesized that SFN supplementation induces SLPI secretion in the nasal mucosa in an Nrf2 dependent manner. Healthy nonsmoking adults ingested SFN-containing broccoli shake homogenate (BSH) for 3 consecutive days. Nasal lavage fluid (NLF) was collected before and after BSH ingestion and analyzed for SLPI protein levels. In follow up in vitro experiments, differentiated primary nasal epithelial cells were used to evaluate the relationship between SFN, Nrf2, and SLPI. Epithelial cells were transduced with Nrf2-specific shRNA to examine the regulatory role of Nrf2 on SLPI expression. Supplementation with BSH significantly increased SLPI levels in NLF. SFN supplementation in vitro significantly enhanced SLPI secretion and these effects were significantly decreased in cells transduced with Nrf2-specific shRNA. Our data support a relationship between nutritional supplementation, Nrf2 activation, and SLPI secretion. Therefore, ingestion of SFN-containing foods has therapeutic potential to augment SLPI expression in the nasal mucosa.
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Affiliation(s)
- Megan Meyer
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7310, USA
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James D, Devaraj S, Bellur P, Lakkanna S, Vicini J, Boddupalli S. Novel concepts of broccoli sulforaphanes and disease: induction of phase II antioxidant and detoxification enzymes by enhanced-glucoraphanin broccoli. Nutr Rev 2012; 70:654-65. [PMID: 23110644 DOI: 10.1111/j.1753-4887.2012.00532.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Consumption of broccoli has long been considered to play a role in a healthy diet. Broccoli accumulates significant amounts of the phytonutrient glucoraphanin (4-methylsulfinylbutyl glucosinolate), which is metabolized in vivo to the biologically active sulforaphane. The preponderance of evidence available from in vitro, animal, and human studies supports the association of sulforaphane with phase II enzyme induction. This has provided impetus for developing varieties of broccoli, both sprouts and whole heads, that are rich in glucoraphanin. The cancer-preventive properties of cruciferous vegetables, especially broccoli, have been studied for decades. However, evidence of broccoli directly affecting cancer incidence or progression is ambiguous, in part because of the presence of substantial polymorphisms in enzymes that metabolize sulforaphane. Since broccoli sulforaphane is one of the most potent inducers of phase II enzymes, exploration into broccoli's impact on other areas of human health, such as cardiovascular health and upper airway immunity, has been suggested. This review provides an update on evidence supporting phase II enzyme induction by sulforaphanes, with implications for breeding broccoli varieties with enhanced amounts of glucoraphanin. Early-stage human studies of consumption of broccoli with enhanced glucoraphanin are also discussed.
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Affiliation(s)
- Don James
- Monsanto Vegetable Seeds, Woodland, CA, USA
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SIERRA-VARGAS MARTHAPATRICIA, TERAN LUISM. Air pollution: impact and prevention. Respirology 2012; 17:1031-8. [PMID: 22726103 PMCID: PMC3532603 DOI: 10.1111/j.1440-1843.2012.02213.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 05/03/2012] [Accepted: 05/05/2012] [Indexed: 01/06/2023]
Abstract
Air pollution is becoming a major health problem that affects millions of people worldwide. In support of this observation, the World Health Organization estimates that every year, 2.4 million people die because of the effects of air pollution on health. Mitigation strategies such as changes in diesel engine technology could result in fewer premature mortalities, as suggested by the US Environmental Protection Agency. This review: (i) discusses the impact of air pollution on respiratory disease; (ii) provides evidence that reducing air pollution may have a positive impact on the prevention of disease; and (iii) demonstrates the impact concerted polices may have on population health when governments take actions to reduce air pollution.
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Affiliation(s)
| | - LUIS M TERAN
- National Institute for Respiratory Diseases ‘Ismael Cosío Villegas’México
- Biomedicine in the Post-Genomic EraHuitzilac, Morelos, Mexico
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Effects of broccoli sprout with high sulforaphane concentration on inflammatory markers in type 2 diabetic patients: A randomized double-blind placebo-controlled clinical trial. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.05.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Wu W, Peden D, Diaz-Sanchez D. Role of GSTM1 in resistance to lung inflammation. Free Radic Biol Med 2012; 53:721-9. [PMID: 22683820 PMCID: PMC3418458 DOI: 10.1016/j.freeradbiomed.2012.05.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 05/18/2012] [Accepted: 05/23/2012] [Indexed: 01/04/2023]
Abstract
Lung inflammation resulting from oxidant/antioxidant imbalance is a common feature of many lung diseases. In particular, the role of enzymes regulated by the NF-E2-related factor 2 transcription factor has recently received increased attention. Among these antioxidant genes, glutathione S-transferase Mu 1 (GSTM1) has been most extensively characterized because it has a null polymorphism that is highly prevalent in the population and associated with increased risk of inflammatory lung diseases. Present evidence suggests that GSTM1 acts through interactions with other genes and environmental factors, especially air pollutants. Here, we review GSTM1 gene expression and regulation and summarize the findings from epidemiological, clinical, animal, and in vitro studies on the role played by GSTM1 in lung inflammation. We discuss limitations in the existing knowledge base and future perspectives and evaluate the potential of pharmacologic and genetic manipulation of the GSTM1 gene to modulate pulmonary inflammatory responses.
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Affiliation(s)
- Weidong Wu
- Department of Pediatrics, Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill, NC 7599, USA.
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Poerschke RL, Franklin MR, Bild AH, Moos PJ. Major differences among chemopreventive organoselenocompounds in the sustained elevation of cytoprotective genes. J Biochem Mol Toxicol 2012; 26:344-53. [PMID: 22807314 DOI: 10.1002/jbt.21427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 05/28/2012] [Accepted: 06/11/2012] [Indexed: 12/30/2022]
Abstract
Cytoprotective enzyme elevation through the nuclear erythroid 2 p45-related factor 2 (Nrf2)-Kelch-like ECH-associated protein 1/antioxidant response element pathway has been promulgated for cancer prevention. This study compares the redox insult and sustained cytoprotective enzyme elevation by organoselenocompounds and sulforaphane (SF) in lung cells. SF elicited a rise in reactive oxygen species (ROS) and drop in glutathione (GSH) at 2 h; nuclear accumulation of Nrf2 at 4 h; and a GSH rebound and elevation in NAD(P)H quinone oxidoreductase (NQO1), thioredoxin reductase (TR1), and glutamate-cysteine ligase (GCL) at 24 h. Selenocystine (SECY) elicited a similar 24 h response, despite lesser earlier time-point changes. 2-Cyclohexylselenazolidine-4-carboxylic acid effects were similar to SECY's but with a larger Nrf2 change and the largest 24 h increase in GSH, GCL, TR1, and NQO1 of any compound investigated. Selenomethionine elicited a similar acute rise in ROS, but lesser depletion of GSH, no 4 h increase in nuclear Nrf2, only minor 24 h elevations in TR1 and NQO1, and a GCL elevation insufficient to elevate GSH.
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Affiliation(s)
- Robyn L Poerschke
- Department of Pharmacology and Toxicology, University of Utah College of Pharmacy, Salt Lake City, UT 84112, USA
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The effect of environmental oxidative stress on airway inflammation. Curr Opin Allergy Clin Immunol 2012; 12:133-9. [PMID: 22306553 DOI: 10.1097/aci.0b013e32835113d6] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
PURPOSE OF REVIEW Asthma is an inflammatory respiratory condition with significantly associated morbidity and mortality that is increasing in prevalence. Air pollution is an important factor in both the development of asthma and in asthma exacerbations. Oxidative stress as a result of exposure to air pollution and underlying genetic polymorphisms that may play a role in susceptibility to this oxidative stress are the subject of current investigation. This article reviews the data regarding the effects of air pollution on the innate immune response and potential clinical and treatment implications of how genetic polymorphisms affect this response. RECENT FINDINGS Recent investigation reveals how pollutant-induced oxidative stress impacts airway inflammatory responses. Work by our study group demonstrates that asthmatic patients have an exaggerated inflammatory response to air pollution-induced oxidative stress. New trials investigating antioxidants as potential therapeutic interventions may target this specific issue. SUMMARY Air pollution plays a critical role in asthma and may affect certain patients more than others. Further investigation into the genetic polymorphisms that affect inflammatory responses may help target patient populations at greatest risk for air pollution-induced asthma and may provide new therapeutic options for these patient populations.
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Akhtar MJ, Ahamed M, Fareed M, Alrokayan SA, Kumar S. Protective effect of sulphoraphane against oxidative stress mediated toxicity induced by CuO nanoparticles in mouse embryonic fibroblasts BALB 3T3. J Toxicol Sci 2012; 37:139-48. [PMID: 22293418 DOI: 10.2131/jts.37.139] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Despite the great interest in nanoparticles (NPs) safety, no comprehensive test paradigm has been developed. Oxidative stress has been implicated as an explanation behind the toxicity of NPs. It is reported that sulphoraphane (SFN) present in cruciferous vegetables like cauliflower and broccoli has potential to protect cells from oxidative damage and inflammation. However, protective role of SFN in nanotoxicity is not explored. We investigated the protective effect of SFN against the toxic response of copper oxide (CuO) NPs in mouse embryonic fibroblasts (BALB 3T3). Results showed that CuO NPs induced dose-dependent (5-15 µg/ml) cytotoxicity in BALB 3T3 cells demonstrated by MTT and lactate dehydrogenase (LDH) assays. CuO NPs were also found to induce oxidative stress in dose-dependent manner indicated by induction of reactive oxygen species (ROS) and lipid peroxidation (LPO) and depletion of glutathione and glutathione reductase. Co-treatment of BALB 3T3 cells with SFN (6 µM) significantly attenuated the cytotoxicity, ROS generation and oxidative stress caused by CuO NPs. Moreover, we found that co-treatment of another antioxidant N-acetyl-cysteine (NAC) (2 mM) also significantly attenuated glutathione depletion caused by CuO NPs but protection from the loss of cell viability due to CuO NPs exposure was not significant. We believe this is the first report showing that SFN significantly protected the BALB 3T3 cells from CuO NPs toxicity, which is mediated through generation of oxidants and depletion of antioxidants. Consequently, protective mechanism of SFN against CuO NPs toxicity was different from NAC that should be further investigated.
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Kim HA, Yeo Y, Jung HA, Jung YO, Park SJ, Kim SJ. Phase 2 enzyme inducer sulphoraphane blocks prostaglandin and nitric oxide synthesis in human articular chondrocytes and inhibits cartilage matrix degradation. Rheumatology (Oxford) 2012; 51:1006-16. [PMID: 22332123 DOI: 10.1093/rheumatology/ker525] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE We explored the inhibitory effect of sulphoraphane (SFN), a potent inducer of Phase 2 enzymes, on cytokine-induced prostaglandin E(2) (PGE2) and nitric oxide (NO) production and cartilage degradation in articular chondrocytes. The regulatory mechanism of SFN on nuclear factor (NF)-κB was investigated. METHODS Chondrocytes were obtained from patients with knee OA. Chondrocytes were stimulated with IL-1β or TNF-α with or without pre-incubation with SFN. Production of PGE2 and NO was evaluated by the Griess reaction and an ELISA. The expression of microsomal PGE synthase (mPGES), cyclo-oxygenase (COX)-2 and inducible NO synthase (iNOS) was evaluated by real-time RT-PCR and western blot analysis. The regulation of NF-κB activity was explored using luciferase and chromatin immunoprecipitation assays as well as a western blot for phosphorylated IκB kinase (IKK), IκB and the degradation of IκB. Proteoglycan and type II collagen degradation products released from explant cultures were analysed using the dimethylmethylene blue assay and an ELISA for C-terminal telopeptides of type II collagen. RESULTS SFN inhibited the production of PGE2 and NO induced by IL-1β and TNF-α. At a concentration as low as 5 μM, SFN completely inhibited mPGES, COX-2 and iNOS at the mRNA and protein levels, and proteoglycan and type II collagen degradation product release in explant culture. Various signalling pathways required for the NF-κB activation were affected by SFN. CONCLUSION SFN inhibited a broad range of catabolic mechanisms in articular chondrocytes. SFN may be a safe and effective candidate drug for the inhibition of cartilage degradation in arthritic diseases.
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Affiliation(s)
- Hyun-Ah Kim
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyongchondong, Dongan-gu, Anyang, Kyunggi-do 431-070, Korea.
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Fimognari C, Turrini E, Ferruzzi L, Lenzi M, Hrelia P. Natural isothiocyanates: genotoxic potential versus chemoprevention. Mutat Res 2011; 750:107-131. [PMID: 22178957 DOI: 10.1016/j.mrrev.2011.12.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 12/01/2011] [Accepted: 12/02/2011] [Indexed: 12/12/2022]
Abstract
Isothiocyanates, occurring in many dietary cruciferous vegetables, show interesting chemopreventive activities against several chronic-degenerative diseases, including cancer, cardiovascular diseases, neurodegeneration, diabetes. The electrophilic carbon residue in the isothiocyanate moiety reacts with biological nucleophiles and modification of proteins is recognized as a key mechanism underlying the biological activity of isothiocyanates. The nuclear factor-erythroid-2-related factor 2 system, which orchestrates the expression of a wide array of antioxidant genes, plays a role in the protective effect of isothiocyanates against almost all the pathological conditions reported above. Recent emerging findings suggest a further common mechanism. Chronic inflammation plays a central role in many human diseases and isothiocyanates inhibit the activity of many inflammation components, suppress cyclooxygenase 2, and irreversibly inactivate the macrophage migration inhibitory factor. Due to their electrophilic reactivity, some isothiocyanates are able to form adducts with DNA and induce gene mutations and chromosomal aberrations. DNA damage has been demonstrated to be involved in the pathogenesis of various chronic-degenerative diseases of epidemiological relevance. Thus, the genotoxicity of the isothiocyanates should be carefully considered. In addition, the dose-response relationship for genotoxic compounds does not suggest evidence of a threshold. Thus, chemicals that are genotoxic pose a greater potential risk to humans than non-genotoxic compounds. Dietary consumption levels of isothiocyanates appear to be several orders of magnitude lower than the doses used in the genotoxicity studies and thus it is highly unlikely that such toxicities would occur in humans. However, the beneficial properties of isothiocyanates stimulated an increase of dietary supplements and functional foods with highly enriched isothiocyanate concentrations on the market. Whether such concentrations may exert a potential health risk cannot be excluded with certainty and an accurate evaluation of the toxicological profile of isothiocyanates should be prompted before any major increase in their consumption be recommended or their clinical use suggested.
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Affiliation(s)
- Carmela Fimognari
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy.
| | - Eleonora Turrini
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Lorenzo Ferruzzi
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Monia Lenzi
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Patrizia Hrelia
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
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Abstract
Asthma is a chronic inflammatory lung disease that results in airflow limitation, hyperreactivity, and airway remodeling. There is strong evidence that an imbalance between the reducing and oxidizing systems favoring a more oxidative state is present in asthma. Endogenous and exogenous reactive oxygen species, such as superoxide anion, hydroxyl radical, hypohalite radical, and hydrogen peroxide, and reactive nitrogen species, such as nitric oxide, peroxynitrite, and nitrite, play a major role in the airway inflammation and are determinants of asthma severity. Asthma is also associated with decreased antioxidant defenses, such as superoxide dismutase, catalase, and glutathione. In this review, we will summarize the current knowledge and discuss the current and future strategies for the modulation of oxidative stress in asthma.
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45
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Peden DB. The role of oxidative stress and innate immunity in O(3) and endotoxin-induced human allergic airway disease. Immunol Rev 2011; 242:91-105. [PMID: 21682740 DOI: 10.1111/j.1600-065x.2011.01035.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ozone (O(3)) and endotoxin are common environmental contaminants that cause asthma exacerbation. These pollutants have similar phenotype response characteristics, including induction of neutrophilic inflammation, changes in airway macrophage immunophenotypes, and ability to enhance response to inhaled allergen. Evoked phenotyping studies of volunteers exposed to O(3) and endotoxin were used to identify the response characteristics of volunteers to these pollutants. New studies support the hypotheses that similar innate immune and oxidant processes modulate response to these agents. These include TLR4 and inflammasome-mediated signaling and cytokine production. Innate immune responses are also impacted by oxidative stress. It is likely that continued discovery of common molecular processes which modulate response to these pollutants will occur. Understanding the pathways that modulate response to pollutants will also allow for discovery of genetic and epigenetic factors that regulate response to these pollutants and determine risk of disease exacerbation. Additionally, defining the mechanisms of response will allow rational selection of interventions to examine. Interventions focused on inhibition of Toll-like receptor 4 and inflammasome represent promising new approaches to preventing pollutant-induced asthma exacerbations. Such interventions include specific inhibitors of innate immunity and antioxidant therapies designed to counter the effects of pollutants on cell signaling.
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Affiliation(s)
- David B Peden
- Division of Pediatric Allergy, Immunology, Rheumatology and Infectious Diseases, Department of Pediatrics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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46
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Gao M, Singh A, Macri K, Reynolds C, Singhal V, Biswal S, Spannhake EW. Antioxidant components of naturally-occurring oils exhibit marked anti-inflammatory activity in epithelial cells of the human upper respiratory system. Respir Res 2011; 12:92. [PMID: 21752292 PMCID: PMC3154159 DOI: 10.1186/1465-9921-12-92] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 07/13/2011] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The upper respiratory tract functions to protect lower respiratory structures from chemical and biological agents in inspired air. Cellular oxidative stress leading to acute and chronic inflammation contributes to the resultant pathology in many of these exposures and is typical of allergic disease, chronic sinusitis, pollutant exposure, and bacterial and viral infections. Little is known about the effective means by which topical treatment of the nose can strengthen its antioxidant and anti-inflammatory defenses. The present study was undertaken to determine if naturally-occurring plant oils with reported antioxidant activity can provide mechanisms through which upper respiratory protection might occur. METHODS Controlled exposure of the upper respiratory system to ozone and nasal biopsy were carried out in healthy human subjects to assess mitigation of the ozone-induced inflammatory response and to assess gene expression in the nasal mucosa induced by a mixture of five naturally-occurring antioxidant oils--aloe, coconut, orange, peppermint and vitamin E. Cells of the BEAS-2B and NCI-H23 epithelial cell lines were used to investigate the source and potential intracellular mechanisms of action responsible for oil-induced anti-inflammatory activity. RESULTS Aerosolized pretreatment with the mixed oil preparation significantly attenuated ozone-induced nasal inflammation. Although most oil components may reduce oxidant stress by undergoing reduction, orange oil was demonstrated to have the ability to induce long-lasting gene expression of several antioxidant enzymes linked to Nrf2, including HO-1, NQO1, GCLm and GCLc, and to mitigate the pro-inflammatory signaling of endotoxin in cell culture systems. Nrf2 activation was demonstrated. Treatment with the aerosolized oil preparation increased baseline levels of nasal mucosal HO-1 expression in 9 of 12 subjects. CONCLUSIONS These data indicate that selected oil-based antioxidant preparations can effectively reduce inflammation associated with oxidant stress-related challenge to the nasal mucosa. The potential for some oils to activate intracellular antioxidant pathways may provide a powerful mechanism through which effective and persistent cytoprotection against airborne environmental exposures can be provided in the upper respiratory mucosa.
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Affiliation(s)
- Meixia Gao
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Anju Singh
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Kristin Macri
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Curt Reynolds
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Vandana Singhal
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Shyam Biswal
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
| | - Ernst W Spannhake
- Health Effects Assessment Laboratory, Department of Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA
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Starrett W, Blake DJ. Sulforaphane inhibitsde novosynthesis of IL-8 and MCP-1 in human epithelial cells generated by cigarette smoke extract. J Immunotoxicol 2011; 8:150-8. [DOI: 10.3109/1547691x.2011.558529] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Koh K, Kim J, Jang YJ, Yoon K, Cha Y, Lee HJ, Kim J. Transcription factor Nrf2 suppresses LPS-induced hyperactivation of BV-2 microglial cells. J Neuroimmunol 2011; 233:160-7. [PMID: 21349591 DOI: 10.1016/j.jneuroim.2011.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/13/2011] [Accepted: 01/13/2011] [Indexed: 11/29/2022]
Abstract
Microglial hyperactivation is a hallmark of neurodegenerative diseases and the suppression of microglial hyperactivation is being investigated as a means to treat inflammation-mediated neurodegenerative disorders. Here we report that transcription factor Nrf2 in BV-2 microglia, which regulates the expression of phase II antioxidant enzyme genes, decreased the levels of LPS-induced inflammatory cytokines and mediators. These anti-inflammatory effects were not due to Nrf2-mediated up-regulation of phase II enzymes, since over-expression of these enzymes failed to suppress LPS-mediated microglial hyperactivation. However, Nrf2 inhibited LPS-derived increases in p38 MAPK phosphorylation and NF-κB activation. This suggests that Nrf2 inhibits microglial hyperactivation by suppressing p38 MAPK and NF-κB signaling pathway.
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Affiliation(s)
- Kyungmi Koh
- School of Biological Sciences, Seoul National University, Seoul 151-921, Republic of Korea
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Stimulation of phagocytosis by sulforaphane. Biochem Biophys Res Commun 2011; 405:146-51. [PMID: 21219867 DOI: 10.1016/j.bbrc.2011.01.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 01/05/2011] [Indexed: 12/20/2022]
Abstract
Sulforaphane, a major isothiocyanate derived from cruciferous vegetables, protects living systems against electrophile toxicity, oxidative stress, inflammation, and radiation. A major protective mechanism is the induction of a network of endogenous cytoprotective (phase 2) genes that are regulated by transcription factor Nrf2. To obtain a more detailed understanding of the anti-inflammatory and immunomodulatory effects of sulforaphane, we evaluated its effect on the phagocytosis activity of RAW 264.7 murine macrophage-like cells by measuring the uptake of 2-μm diameter polystyrene beads. Sulforaphane raised the phagocytosis activity of RAW 264.7 cells but only in the absence or presence of low concentrations (1%) of fetal bovine serum. Higher serum concentrations depressed phagocytosis and abolished its stimulation by sulforaphane. This stimulation did not depend on the induction of Nrf2-regulated genes since it occurred in peritoneal macrophages of nrf2(-/-) mice. Moreover, a potent triterpenoid inducer of Nrf2-dependent genes did not stimulate phagocytosis, whereas sulforaphane and another isothiocyanate (benzyl isothiocyanate) had comparable inducer potencies. It has been shown recently that sulforaphane is a potent and direct inactivator of macrophage migration inhibitory factor (MIF), an inflammatory cytokine. Moreover, the addition of recombinant MIF to RAW 264.7 cells attenuated phagocytosis, but sulforaphane-inactivated MIF did not affect phagocytosis. The inactivation of MIF may therefore be involved in the phagocytosis-enhancing activity of sulforaphane.
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Sharma C, Sadrieh L, Priyani A, Ahmed M, Hassan AH, Hussain A. Anti-carcinogenic effects of sulforaphane in association with its apoptosis-inducing and anti-inflammatory properties in human cervical cancer cells. Cancer Epidemiol 2010; 35:272-8. [PMID: 20956097 DOI: 10.1016/j.canep.2010.09.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 09/07/2010] [Accepted: 09/17/2010] [Indexed: 01/15/2023]
Abstract
BACKGROUND The multistep process of carcinogenesis is characterized by progressive disorganization and occurrence of initiation, promotion, and progression events. Several new strategies such as chemoprevention are being developed for treatment and prevention at various stages of carcinogenesis. Sulforaphane, a potential chemopreventive agent, possesses anti-proliferative, anti-inflammatory, anti-oxidant and anti-cancer activities and has attracted extensive interest for better cancer management. METHODS We evaluated the effect of sulforaphane alone or in combination with gemcitabine on HeLa cells by cell viability assay and confirmed the results by apoptosis assay. Further we analyzed the effect of sulforaphane on the expression of Bcl-2, COX-2 and IL-1β by RT-PCR on HeLa cells. RESULTS In the present study, sulforaphane was found to induce dose-dependent selective cytotoxicity in HeLa cells in comparison to normal cells pointing to its safe cytotoxicity profile. Additionally, a combination of sulforaphane and gemcitabine was found to increase the growth inhibition in a synergistic manner in HeLa cells compared to the individual drugs. Also, the expression analysis of genes involved in apoptosis and inflammation revealed significant downregulation of Bcl-2, COX-2 and IL-1β upon treatment with sulforaphane. CONCLUSION Our results suggest that sulforaphane exerts its anticancer activities via apoptosis induction and anti-inflammatory properties and provides the first evidence demonstrating synergism between sulforaphane and gemcitabine which may enhance the therapeutic index of prevention and/or treatment of cervical cancer.
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Affiliation(s)
- Chhavi Sharma
- Department of Biotechnology, Manipal University, Dubai, United Arab Emirates
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