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Fang X, Feng J, Zhu X, Feng D, Zheng L. Plant-derived vesicle-like nanoparticles: A new tool for inflammatory bowel disease and colitis-associated cancer treatment. Mol Ther 2024; 32:890-909. [PMID: 38369751 PMCID: PMC11163223 DOI: 10.1016/j.ymthe.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/03/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024] Open
Abstract
Long-term use of conventional drugs to treat inflammatory bowel diseases (IBD) and colitis-associated cancer (CAC) has an adverse impact on the human immune system and easily leads to drug resistance, highlighting the urgent need to develop novel biotherapeutic tools with improved activity and limited side effects. Numerous products derived from plant sources have been shown to exert antibacterial, anti-inflammatory and antioxidative stress effects. Plant-derived vesicle-like nanoparticles (PDVLNs) are natural nanocarriers containing lipids, protein, DNA and microRNA (miRNA) with the ability to enter mammalian cells and regulate cellular activity. PDVLNs have significant potential in immunomodulation of macrophages, along with regulation of intestinal microorganisms and friendly antioxidant activity, as well as overcoming drug resistance. PDVLNs have utility as effective drug carriers and potential modification, with improved drug stability. Since immune function, intestinal microorganisms, and antioxidative stress are commonly targeted key phenomena in the treatment of IBD and CAC, PDVLNs offer a novel therapeutic tool. This review provides a summary of the latest advances in research on the sources and extraction methods, applications and mechanisms in IBD and CAC therapy, overcoming drug resistance, safety, stability, and clinical application of PDVLNs. Furthermore, the challenges and prospects of PDVLN-based treatment of IBD and CAC are systematically discussed.
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Affiliation(s)
- Xuechun Fang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Junjie Feng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xingcheng Zhu
- Medical Laboratory Department, Second People's Hospital, Qujing 655000, China
| | - Dan Feng
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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2
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Singh S, Yadav S, Cavallo C, Mourya D, Singh I, Kumar V, Shukla S, Shukla P, Chaudhary R, Maurya GP, Müller RLJ, Rohde L, Mishra A, Wolkenhauer O, Gupta S, Tripathi A. Sunset Yellow protects against oxidative damage and exhibits chemoprevention in chemically induced skin cancer model. NPJ Syst Biol Appl 2024; 10:23. [PMID: 38431714 PMCID: PMC10908785 DOI: 10.1038/s41540-024-00349-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 02/09/2024] [Indexed: 03/05/2024] Open
Abstract
Skin cancer and other skin-related inflammatory pathologies are rising due to heightened exposure to environmental pollutants and carcinogens. In this context, natural products and repurposed compounds hold promise as novel therapeutic and preventive agents. Strengthening the skin's antioxidant defense mechanisms is pivotal in neutralizing reactive oxygen species (ROS) and mitigating oxidative stress. Sunset Yellow (SY) exhibits immunomodulatory characteristics, evidenced by its capacity to partially inhibit the secretion of proinflammatory cytokines, regulate immune cell populations, and modulate the activation of lymphocytes. This study aimed to investigate the antioxidant and anti-genotoxic properties of SY using in-silico, in vitro, and physiochemical test systems, and to further explore its potential role in 7,12-dimethylbenz(a) anthracene (DMBA)/ 12-o-tetradecanoylphorbol-13-acetate (TPA)-induced two-stage skin carcinogenesis. In vitro experiments showed that pre-treatment of SY significantly enhanced the cell viability of HaCaT cells when exposed to tertiary-Butyl Hydrogen Peroxide (tBHP). This increase was accompanied by reduced ROS levels, restoration of mitochondrial membrane potential, and notable reduction in DNA damage in (SY + tBHP) treated cells. Mechanistic investigations using DPPH chemical antioxidant activity test and potentiometric titrations confirmed SY's antioxidant properties, with a standard reduction potential (E o ) of 0.211 V. Remarkably, evaluating the effect of topical application of SY in DMBA/TPA-induced two-step skin carcinogenesis model revealed dose-dependent decreases in tumor latency, incidence, yield, and burden over 21-weeks. Furthermore, computational analysis and experimental validations identified GSK3β, KEAP1 and EGFR as putative molecular targets of SY. Collectively, our findings reveal that SY enhances cellular antioxidant defenses, exhibits anti-genotoxic effects, and functions as a promising chemopreventive agent.
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Affiliation(s)
- Saurabh Singh
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Sarika Yadav
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Celine Cavallo
- University of Strasbourg, F-67081, Strasbourg, France
- Department of Systems Biology and Bioinformatics, University of Rostock, 18055, Rostock, Germany
| | - Durgesh Mourya
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
- Drug and Chemical Toxicology Group (FEST), CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
| | - Ishu Singh
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Vijay Kumar
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Sachin Shukla
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Pallavi Shukla
- Division of Microbial Technology, CSIR-National Botanical Research Institute, 226001, Lucknow, India
| | - Romil Chaudhary
- Center for Advanced Studies, Dr APJ Abdul Kalam Technical University, 226031, Lucknow, India
| | - Gyan Prakash Maurya
- Center for Advanced Studies, Dr APJ Abdul Kalam Technical University, 226031, Lucknow, India
| | | | - Lilly Rohde
- Department of Systems Biology and Bioinformatics, University of Rostock, 18055, Rostock, Germany
| | - Aradhana Mishra
- Division of Microbial Technology, CSIR-National Botanical Research Institute, 226001, Lucknow, India
| | - Olaf Wolkenhauer
- Department of Systems Biology and Bioinformatics, University of Rostock, 18055, Rostock, Germany
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, 85354, Freising, Germany
- Chhattisgarh Swami Vivekananda Technical University, 491107, Bhilai, India
| | - Shailendra Gupta
- Department of Systems Biology and Bioinformatics, University of Rostock, 18055, Rostock, Germany.
- Chhattisgarh Swami Vivekananda Technical University, 491107, Bhilai, India.
| | - Anurag Tripathi
- Food Toxicology Group, CSIR- Indian Institute of Toxicology Research, 226001, Lucknow, India.
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India.
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Tran DV, Luu XQ, Tran HT, Myung SK. Dietary and supplementary vitamin C intake and the risk of lung cancer: A meta‑analysis of cohort studies. Oncol Lett 2024; 27:10. [PMID: 38034488 PMCID: PMC10688485 DOI: 10.3892/ol.2023.14144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/16/2023] [Indexed: 12/02/2023] Open
Abstract
Previous cohort studies reported inconsistent findings regarding the association between dietary or supplementary vitamin C intake and lung cancer risk. These associations were investigated by conducting a meta-analysis of cohort studies. The PubMed and EMBASE databases were utilized, using keywords related to the topic from inception to April 15, 2022. Pooled effect sizes, such as relative risk (RR) or hazard ratio (HR) with 95% confidence intervals (CIs), were calculated using a random-effects model. A total of 20 cohort studies from 13 articles were included in the final analysis. In a meta-analysis of all studies, there was no significant association between dietary or supplementary vitamin C intake and lung cancer risk (RR/HR, 0.90; 95% CI, 0.80-1.01; I2=56.4%; n=20). In the subgroup meta-analysis by the source of vitamin C, dietary vitamin C intake decreased the risk of lung cancer (RR/HR, 0.82; 95% CI, 0.73-0.92; I2=42.5%; n=14), whereas there was no association between supplementary vitamin C intake and lung cancer risk (RR/HR, 1.01; 95% CI, 0.84-1.22; n=4). The present meta-analysis of cohort studies found that dietary vitamin C intake is beneficial for preventing lung cancer, whereas its supplementary intake does not have a beneficial effect.
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Affiliation(s)
- Dung V. Tran
- Department of International Collaboration and Research, Vietnam National Cancer Hospital, Hanoi 110000, Vietnam
- Vietnam National Cancer Institute, Vietnam National Cancer Hospital, Hanoi 110000, Vietnam
- Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Gyeonggi-do 10408, Republic of Korea
| | - Xuan Quy Luu
- Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Gyeonggi-do 10408, Republic of Korea
| | - Huong T.T. Tran
- Department of International Collaboration and Research, Vietnam National Cancer Hospital, Hanoi 110000, Vietnam
- Vietnam National Cancer Institute, Vietnam National Cancer Hospital, Hanoi 110000, Vietnam
| | - Seung-Kwon Myung
- Department of Cancer AI and Digital Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Gyeonggi-do 10408, Republic of Korea
- Cancer Epidemiology Branch, Division of Cancer Data Science, Research Institute, National Cancer Center, Goyang, Gyeonggi-do 10408, Republic of Korea
- Department of Family Medicine and Center for Cancer Prevention and Detection, Hospital, National Cancer Center, Goyang, Gyeonggi-do 10408, Republic of Korea
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Peris K, Fargnoli MC, Kaufmann R, Arenberger P, Bastholt L, Seguin NB, Bataille V, Brochez L, Del Marmol V, Dummer R, Forsea AM, Gaudy-Marqueste C, Harwood CA, Hauschild A, Höller C, Kandolf L, Kellerners-Smeets NWJ, Lallas A, Leiter U, Malvehy J, Marinović B, Mijuskovic Z, Moreno-Ramirez D, Nagore E, Nathan P, Stratigos AJ, Stockfleth E, Tagliaferri L, Trakatelli M, Vieira R, Zalaudek I, Garbe C. European consensus-based interdisciplinary guideline for diagnosis and treatment of basal cell carcinoma-update 2023. Eur J Cancer 2023; 192:113254. [PMID: 37604067 DOI: 10.1016/j.ejca.2023.113254] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 08/23/2023]
Abstract
Basal cell carcinoma (BCC) is the most common malignant tumour in white populations. Multidisciplinary experts from European Association of Dermato-Oncology (EADO), European Dermatology Forum, European Society for Radiotherapy and Oncology (ESTRO), Union Européenne des Médecins Spécialistes, and the European Academy of Dermatology and Venereology developed updated recommendations on diagnosis and treatment of BCC. BCCs were categorised into 'easy-to-treat' (common) and 'difficult-to-treat' according to the new EADO clinical classification. Diagnosis is based on clinico-dermatoscopic features, although histopathological confirmation is mandatory in equivocal lesions. The first-line treatment of BCC is complete surgery. Micrographically controlled surgery shall be offered in high-risk and recurrent BCC, and BCC located on critical anatomical sites. Topical therapies and destructive approaches can be considered in patients with low-risk superficial BCC. Photodynamic therapy is an effective treatment for superficial and low-risk nodular BCCs. Management of 'difficult-to-treat' BCCs should be discussed by a multidisciplinary tumour board. Hedgehog inhibitors (HHIs), vismodegib or sonidegib, should be offered to patients with locally advanced and metastatic BCC. Immunotherapy with anti-PD1 antibodies (cemiplimab) is a second-line treatment in patients with a progression of disease, contraindication, or intolerance to HHI therapy. Radiotherapy represents a valid alternative in patients who are not candidates for or decline surgery, especially elderly patients. Electrochemotherapy may be offered when surgery or radiotherapy is contraindicated. In Gorlin patients, regular skin examinations are required to diagnose and treat BCCs at an early stage. Long-term follow-up is recommended in patients with high-risk BCC, multiple BCCs, and Gorlin syndrome.
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Affiliation(s)
- Ketty Peris
- Institute of Dermatology, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.
| | - Maria Concetta Fargnoli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Roland Kaufmann
- Department of Dermatology, Venereology and Allergology, University Hospital Frankfurt, Germany
| | - Petr Arenberger
- Department of Dermatovenereology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Lars Bastholt
- Department of Oncology, Odense University Hospital, Denmark
| | | | - Veronique Bataille
- Twin Research and Genetic Epidemiology Unit, School of Basic & Medical Biosciences, King's College London, London SE1 7EH, UK
| | - Lieve Brochez
- Department of Dermatology, University Hospital Ghent, Ghent, Belgium
| | - Veronique Del Marmol
- Department of Dermatology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Reinhard Dummer
- Department of Dermatology, University Hospital Zurich and University Zurich, Switzerland
| | - Ana-Marie Forsea
- Department of Oncologic Dermatology, Elias University Hospital Bucharest, Carol Davila University of Medicine and Pharmacy Bucharest, Bucharest, Romania
| | | | - Catherine A Harwood
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Axel Hauschild
- Department of Dermatology, University of Kiel, Kiel, Germany
| | - Christoph Höller
- Department of Dermatology, Medical University of Vienna, Austria
| | - Lidija Kandolf
- Department of Dermatology, Faculty of Medicine, Military Medical Academy, Belgrade, Serbia
| | - Nicole W J Kellerners-Smeets
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, Netherlands; Department of Dermatology, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Aimilios Lallas
- First Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | - Ulrike Leiter
- Centre for Dermatooncology, Department of Dermatology, Eberhard-Karls University, Tuebingen, Germany
| | - Josep Malvehy
- Department of Dermatology, Hospital Clínic de Barcelona (Melanoma Unit), University of Barcelona, IDIBAPS, Barcelona & CIBERER, Barcelona, Spain
| | - Branka Marinović
- Department of Dermatology and Venereology, University Hospital Center Zagreb, Croatia
| | - Zeljko Mijuskovic
- Department of Dermatology, Faculty of Medicine, Military Medical Academy, Belgrade, Serbia
| | - David Moreno-Ramirez
- Dermatology. Medicine School, University of Seville, University Hospital Virgen Macarena, Seville-Spain
| | - Eduardo Nagore
- Department of Dermatology, Instituto Valenciano de Oncologia, Valencia, Spain
| | | | - Alexander J Stratigos
- First Department of Dermatology-Venereology, National and Kapodistrian University of Athens, School of Medicine, Andreas Sygros Hospital, Athens, Greece
| | - Eggert Stockfleth
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, 44791 Bochum, Germany
| | - Luca Tagliaferri
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC di Radioterapia, Dipartimento di Scienze Radiologiche, Radioterapiche ed Ematologiche, Rome, Italy
| | - Myrto Trakatelli
- Second Department of Dermatology, Aristotle University Medical School, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Ricardo Vieira
- Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | - Iris Zalaudek
- Dermatology Clinic, University of Trieste, Trieste, Italy
| | - Claus Garbe
- Centre for Dermatooncology, Department of Dermatology, Eberhard-Karls University, Tuebingen, Germany
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5
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Povero D, Chen Y, Johnson SM, McMahon CE, Pan M, Bao H, Petterson XMT, Blake E, Lauer KP, O'Brien DR, Yu Y, Graham RP, Taner T, Han X, Razidlo GL, Liu J. HILPDA promotes NASH-driven HCC development by restraining intracellular fatty acid flux in hypoxia. J Hepatol 2023; 79:378-393. [PMID: 37061197 DOI: 10.1016/j.jhep.2023.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/23/2023] [Accepted: 03/26/2023] [Indexed: 04/17/2023]
Abstract
BACKGROUND & AIMS The prevalence of non-alcoholic steatohepatitis (NASH)-driven hepatocellular carcinoma (HCC) is rising rapidly, yet its underlying mechanisms remain unclear. Herein, we aim to determine the role of hypoxia-inducible lipid droplet associated protein (HILPDA)/hypoxia-inducible gene 2 (HIG2), a selective inhibitor of intracellular lipolysis, in NASH-driven HCC. METHODS The clinical significance of HILPDA was assessed in human NASH-driven HCC specimens by immunohistochemistry and transcriptomics analyses. The oncogenic effect of HILPDA was assessed in human HCC cells and in 3D epithelial spheroids upon exposure to free fatty acids and either normoxia or hypoxia. Lipidomics profiling of wild-type and HILPDA knockout HCC cells was assessed via shotgun and targeted approaches. Wild-type (Hilpdafl/fl) and hepatocyte-specific Hilpda knockout (HilpdaΔHep) mice were fed a Western diet and high sugar in drinking water while receiving carbon tetrachloride to induce NASH-driven HCC. RESULTS In patients with NASH-driven HCC, upregulated HILPDA expression is strongly associated with poor survival. In oxygen-deprived and lipid-loaded culture conditions, HILPDA promotes viability of human hepatoma cells and growth of 3D epithelial spheroids. Lack of HILPDA triggered flux of polyunsaturated fatty acids to membrane phospholipids and of saturated fatty acids to ceramide synthesis, exacerbating lipid peroxidation and apoptosis in hypoxia. The apoptosis induced by HILPDA deficiency was reversed by pharmacological inhibition of ceramide synthesis. In our experimental mouse model of NASH-driven HCC, HilpdaΔHep exhibited reduced hepatic steatosis and tumorigenesis but increased oxidative stress in the liver. Single-cell analysis supports a dual role of hepatic HILPDA in protecting HCC cells and facilitating the establishment of a pro-tumorigenic immune microenvironment in NASH. CONCLUSIONS Hepatic HILPDA is a pivotal oncometabolic factor in the NASH liver microenvironment and represents a potential novel therapeutic target. IMPACT AND IMPLICATIONS Non-alcoholic steatohepatitis (NASH, chronic metabolic liver disease caused by buildup of fat, inflammation and damage in the liver) is emerging as the leading risk factor and the fastest growing cause of hepatocellular carcinoma (HCC), the most common form of liver cancer. While curative therapeutic options exist for HCC, it frequently presents at a late stage when such options are no longer effective and only systemic therapies are available. However, systemic therapies are still associated with poor efficacy and some side effects. In addition, no approved drugs are available for NASH. Therefore, understanding the underlying metabolic alterations occurring during NASH-driven HCC is key to identifying new cancer treatments that target the unique metabolic needs of cancer cells.
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Affiliation(s)
- Davide Povero
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA; Department of Medicine, Division of Diabetes, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
| | - Yongbin Chen
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Scott M Johnson
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Cailin E McMahon
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Meixia Pan
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Hanmei Bao
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xuan-Mai T Petterson
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, 4939 Charles Katz Drive, San Antonio, TX 78229, USA
| | - Emily Blake
- Metabolomics Core, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Kimberly P Lauer
- Metabolomics Core, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Daniel R O'Brien
- Metabolomics Core, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Yue Yu
- Metabolomics Core, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Rondell P Graham
- Department of Quantitative Health Sciences, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Timucin Taner
- Department of Laboratory Medicine and Pathology, Division of Anatomic Pathology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA
| | - Xianlin Han
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; Departments of Surgery and Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Gina L Razidlo
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA; Department of Medicine, Division of Diabetes, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Jun Liu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA.
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Wilson D, Driller M, Johnston B, Gill N. Healthy Nutrition, Physical Activity, and Sleep Hygiene to Promote Cardiometabolic Health of Airline Pilots: A Narrative Review. J Lifestyle Med 2023; 13:1-15. [PMID: 37250274 PMCID: PMC10210965 DOI: 10.15280/jlm.2023.13.1.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/17/2022] [Accepted: 12/21/2022] [Indexed: 05/31/2023] Open
Abstract
Background Airline pilots experience unique occupational demands that may contribute to adverse physical and psychological health outcomes. Epidemiological reports have shown a substantial prevalence of cardiometabolic health risk factors including excessive body weight, elevated blood pressure, poor lifestyle behaviors, and psychological fatigue. Achieving health guidelines for lifestyle behavior nutrition, physical activity, and sleep are protective factors against the development of noncommunicable diseases and may mitigate the unfavorable occupational demands of airline pilots. This narrative review examines occupational characteristics for sleep, nutrition, and physical activity and outlines evidence-based strategies to inform health behavior interventions to mitigate cardiometabolic health risk factors among airline pilots. Methods Literature sources published between 1990 and 2022 were identified through electronic searches in PubMed, MEDLINE (via OvidSP), PsychINFO, Web of Science, and Google Scholar databases, and a review of official reports and documents from regulatory authorities pertaining to aviation medicine and public health was conducted. The literature search strategy comprised key search terms relating to airline pilots, health behaviors, and cardiometabolic health. The inclusion criteria for literature sources were peer-reviewed human studies, meta-analyses, systematic reviews, and reports or documents published by regulatory bodies. Results The results of the review show occupational factors influencing nutrition, sleep, and physical activity behaviors and delineate evident occupational disruptions to these lifestyle behaviors. Evidence from clinical trials demonstrates the efficacy of nutrition, sleep, and physical activity interventions for enhancing the cardiometabolic health of airline pilots. Conclusion This narrative review suggests that implementing evidence-based interventions focused on nutrition, physical activity, and sleep could help mitigate cardiometabolic health risk factors among airline pilots, who are particularly susceptible to adverse health outcomes due to unique occupational demands.
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Affiliation(s)
- Daniel Wilson
- Te Huataki Waiora School of Health, The University of Waikato, Hamilton, New Zealand
- Faculty of Health, Education and Environment, Toi Ohomai Institute of Technology, Tauranga, New Zealand
| | - Matthew Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
| | - Ben Johnston
- Aviation and Occupational Health Unit, Air New Zealand, Auckland, New Zealand
| | - Nicholas Gill
- Te Huataki Waiora School of Health, The University of Waikato, Hamilton, New Zealand
- New Zealand Rugby, Wellington, New Zealand
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7
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Whitehall JC, Smith ALM, Greaves LC. Mitochondrial DNA Mutations and Ageing. Subcell Biochem 2023; 102:77-98. [PMID: 36600130 DOI: 10.1007/978-3-031-21410-3_4] [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: 01/06/2023]
Abstract
Mitochondria are subcellular organelles present in most eukaryotic cells which play a significant role in numerous aspects of cell biology. These include carbohydrate and fatty acid metabolism to generate cellular energy through oxidative phosphorylation, apoptosis, cell signalling, haem biosynthesis and reactive oxygen species production. Mitochondrial dysfunction is a feature of many human ageing tissues, and since the discovery that mitochondrial DNA mutations were a major underlying cause of changes in oxidative phosphorylation capacity, it has been proposed that they have a role in human ageing. However, there is still much debate on whether mitochondrial DNA mutations play a causal role in ageing or are simply a consequence of the ageing process. This chapter describes the structure of mammalian mitochondria, and the unique features of mitochondrial genetics, and reviews the current evidence surrounding the role of mitochondrial DNA mutations in the ageing process. It then focusses on more recent discoveries regarding the role of mitochondrial dysfunction in stem cell ageing and age-related inflammation.
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Affiliation(s)
- Julia C Whitehall
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Anna L M Smith
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Laura C Greaves
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK.
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8
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Tan R, Cong T, Xu G, Hao Z, Liao J, Xie Y, Lin Y, Yang X, Li Q, Liu Y, Xia YL. Anthracycline-Induced Atrial Structural and Electrical Remodeling Characterizes Early Cardiotoxicity and Contributes to Atrial Conductive Instability and Dysfunction. Antioxid Redox Signal 2022; 37:19-39. [PMID: 35081742 DOI: 10.1089/ars.2021.0002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aims: Cancer patients treated with anthracyclines are susceptible to atrial fibrillation (AF), while the mechanisms remain unclear. Due to sudden and unpredictable features, prediction of anthracycline-induced AF at early phase is difficult. Clinically, we tested whether anthracycline-induced early atrial remodeling in patients could be detected by echocardiography. Experimentally, we investigated the mechanisms of doxorubicin-induced atrial remodeling and AF in mice, and the protective effects of dexrazoxane and antioxidants. Methods and Results: Postsurgery breast cancer patients with an anthracycline-containing or anthracycline exclusion regimen were recruited for echocardiography before chemotherapy, and 3 and 6 months after chemotherapy. Mice were injected with doxorubicin or vehicle (5 mg/kg/week, 4 weeks), and left atrial diameter, electrical transmission, and AF inducibility were measured. Meanwhile, the level of reactive oxygen species (ROS), activity of antioxidant enzymes, cardiomyocyte size, vacuolization, inflammation, and fibrosis were also measured in mouse atria. The therapeutic effects of dexrazoxane and antioxidants on doxorubicin-induced changes in the aforementioned parameters were also determined. While ventricular parameters and functions were unchanged in cancer patients receiving anthracyclines before and after chemotherapy, left atrial reservoir and conduit function were decreased at 3 months postchemotherapy versus prechemotherapy. Doxorubicin-induced susceptibility to AF occurred in mice before onset of ventricular dysfunction. Doxorubicin-induced AF was via inducing structural remodeling (cardiomyocyte death, hypotrophy, and vacuolization) and electrical remodeling (reduction and redistribution of connexin 43) in atria, which was effectively prevented by dexrazoxane or antioxidants through inhibiting ROS generation or enhancing ROS elimination. Innovation and Conclusion: AF inducibility was induced after doxorubicin injection, which can be inhibited by repressing the ROS level. Antioxid. Redox Signal. 37, 19-39. The Clinical Trial Registration number is PJ-KS-KY-2019-73.
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Affiliation(s)
- Ruopeng Tan
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Tao Cong
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Guiwen Xu
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhujing Hao
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jiawei Liao
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yunpeng Xie
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yajuan Lin
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiaolei Yang
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qingsong Li
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yang Liu
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yun-Long Xia
- Institute of Cardiovascular Diseases, The First Affiliated Hospital of Dalian Medical University, Dalian, China.,Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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9
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Mahamat-Saleh Y, Savoye I, Cervenka I, Al-Rahmoun M, Cadeau C, Boutron-Ruault MC, Kvaskoff M. Dietary antioxidant supplements and risk of keratinocyte cancers in women: a prospective cohort study. Eur J Nutr 2022; 61:2825-2836. [PMID: 35292856 DOI: 10.1007/s00394-022-02861-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/02/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Experimental studies suggested that antioxidants could protect against skin carcinomas. However, epidemiological studies on antioxidant supplement use in relation to basal-cell carcinoma (BCC) and squamous-cell carcinoma (SCC) risks yielded inconsistent findings, and few prospective studies have been conducted to date. We aimed to investigate the associations between antioxidant supplement intake and keratinocyte cancer (KC) risk. METHODS E3N is an ongoing prospective cohort initiated in 1990 and involving 98,995 French women aged 40-65 years at recruitment. Intakes of dietary antioxidants were estimated via a validated dietary questionnaire in 1993 and self-reported antioxidant supplement use was collected in 1995. We used Cox models to compute hazard ratios (HRs) and 95% confidence intervals (CIs) adjusted for age and skin cancer risk factors. RESULTS Over 1995-2014, 2426 BCC and 451 SCC cases were diagnosed among 63,063 women. We found positive relationships between vitamin A supplement use and KC risk (HR = 1.37, 95% CI 1.15-1.62), particularly with BCC (HR = 1.40, 95% CI 1.17-1.69); and between vitamin E supplement use and risks of both BCC (HR = 1.21, 95% CI 1.03-1.52) and SCC (HR = 1.43, 95% CI 1.03-1.99). Intake of beta-carotene supplements was associated with an increased SCC risk (HR = 1.59, 95% CI 1.00-2.54). Vitamin C supplement use was not associated with KC risk. We found similar results when considering total antioxidant intake. CONCLUSIONS Intakes of vitamin A or E supplements were associated with an increased KC risk in women. Further studies with information on doses and duration of supplement use and the ability to examine their underlying mechanisms are needed.
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Affiliation(s)
- Yahya Mahamat-Saleh
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Isabelle Savoye
- Belgian Health Care Knowledge Centre (KCE), Brussels, Belgium
| | - Iris Cervenka
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Marie Al-Rahmoun
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Claire Cadeau
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Marie-Christine Boutron-Ruault
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Marina Kvaskoff
- Inserm U1018, "Exposome, Heredity, Cancer, and Health" Team, CESP, Paris-Saclay University, UVSQ, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France.
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10
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Molanouri Shamsi M, Vahed A, Hekmatikar AA, Suzuki K. Combined Effects of Exercise Training and Nutritional Supplementation in Cancer Patients in the Context of the COVID-19: A Perspective Study. Front Nutr 2022; 9:847215. [PMID: 35356739 PMCID: PMC8959344 DOI: 10.3389/fnut.2022.847215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 02/14/2022] [Indexed: 11/16/2022] Open
Abstract
The 2019 coronavirus (COVID-19) epidemic, has caused unprecedented global social and economic impacts and many deaths. Many risk factors have been identified in the progression of COVID-19 to severe and critical stages, and it is shown that the coronavirus appears more severely in people with cancer. Pro-inflammatory status and weakened immune system due to cancer-related treatments can be determinants in the immune system’s response to the coronavirus in these patients. Higher physical activity levels are associated with lower hospitalization rates and mortality in COVID-19. Also, regular exercise training can improve immune system responses, modulate inflammatory responses, and improve psychological parameters in cancer patients. The interactive effects of nutritional supplements on immune responses and anti-inflammatory status have been shown in some studies. The purpose of this perspective article was to investigate the interaction between dietary supplementation and regular physical exercise in controlling risk factors associated with coronavirus in cancer patients. In addition to appropriate dietary habits, some nutritional supplements, especially vitamin D, have been shown to improve the immune system’s response against COVID-19 and cancer. Using lifestyle strategies such as regular physical activity and intake of functional compounds as supplements can be effective in treatment outcomes, quality of life, and overall survival in cancer patients. We proposed that combining dietary supplements and exercise training in cancer patients can boost immune responses against COVID-19 and probably improve vaccine responses. Angiotensin (ANG)-(1-7) Mas receptor axis can probably activate following exercise training and vitamin D combination. And can prevent pulmonary injury, hematological alterations, and hyperinflammatory state in COVID-19.
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Affiliation(s)
- Mahdieh Molanouri Shamsi
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
- *Correspondence: Mahdieh Molanouri Shamsi,
| | - Alieh Vahed
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
- Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | - AmirHossin Ahmadi Hekmatikar
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
- Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | - Katsuhiko Suzuki
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
- Katsuhiko Suzuki,
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11
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Henrik SZŐKE, István BÓKKON, David M, Jan V, Ágnes K, Zoltán K, Ferenc F, Tibor K, László SL, Ádám D, Odilia M, Andrea K. The innate immune system and fever under redox control: A Narrative Review. Curr Med Chem 2022; 29:4324-4362. [DOI: 10.2174/0929867329666220203122239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/21/2021] [Accepted: 12/07/2021] [Indexed: 11/22/2022]
Abstract
ABSTRACT:
In living cells, redox potential is vitally important for normal physiological processes that are closely regulated by antioxidants, free amino acids and proteins that either have reactive oxygen and nitrogen species capture capability or can be compartmentalized. Although hundreds of experiments support the regulatory role of free radicals and their derivatives, several authors continue to claim that these perform only harmful and non-regulatory functions. In this paper we show that countless intracellular and extracellular signal pathways are directly or indirectly linked to regulated redox processes. We also briefly discuss how artificial oxidative stress can have important therapeutic potential and the possible negative effects of popular antioxidant supplements.
Next, we present the argument supported by a large number of studies that several major components of innate immunity, as well as fever, is also essentially associated with regulated redox processes. Our goal is to point out that the production of excess or unregulated free radicals and reactive species can be secondary processes due to the perturbed cellular signal pathways. However, researchers on pharmacology should consider the important role of redox mechanisms in the innate immune system and fever.
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Affiliation(s)
- SZŐKE Henrik
- Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
| | - BÓKKON István
- Neuroscience and Consciousness Research Department, Vision Research Institute,
Lowell, MA, USA
| | - martin David
- Department of Human Medicine, University Witten/Herdecke, Witten, Germany
| | - Vagedes Jan
- University Children’s Hospital, Tuebingen University, Tuebingen, Germany
| | - kiss Ágnes
- Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
| | - kovács Zoltán
- Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
| | - fekete Ferenc
- Department of Nyerges Gábor Pediatric Infectology, Heim Pál National Pediatric Institute, Budapest, Hungary
| | - kocsis Tibor
- Department of Clinical Governance, Hungarian National Ambulance Service, Budapest, Hungary
| | | | | | | | - kisbenedek Andrea
- Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary
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12
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Vitamin C and cancer risk and treatment. POSTEP HIG MED DOSW 2022. [DOI: 10.2478/ahem-2021-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Vitamin C (L-ascorbic acid) works as a strong reductant, radical scavenger, and protector of cell membranes against primary peroxidative damage in tissues and in the extracellular fluid. L-ascorbic acid is involved in the synthesis of collagen and many other biologically relevant substances, enzyme activity, xenobiotic detoxification, and prevention of forming carcinogenic nitrosamines. It also plays a role in the immune system. Numerous data indicate that cancer patients suffer from vitamin C deficiency. Studies show that people with a low vitamin C intake have an increased risk of head and neck cancers as well as lung, gastric, pancreatic, cervical, rectal, or breast cancer. On the other hand, there is no clinical evidence to support the thesis that antioxidant supplements (including vitamin C) prevent cancer. Observational trials investigating high doses of intravenous L-ascorbic acid in previously treated cancer patients have shown that it allows an increase in quality of life and may improve physical, mental, and emotional functions, as well as reducing adverse effects of standard anticancer treatment, including fatigue, nausea, vomiting, and appetite loss. So far, there were a few randomized controlled trials and they have not reported any statistically significant improvements in the overall or progression-free survival with vitamin C, as compared to the control arm. However, preclinical data indicating a role of L-ascorbic acid in modulation of immune response and its involvement in epigenome remodeling suggest its new potential clinical applications in cancer patients, especially in combination with immunotherapy. It seems reasonable to further investigate the value of vitamin C as a supportive treatment or in combination with anticancer targeted therapy.
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13
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Yu YC, Paragomi P, Wang R, Jin A, Schoen RE, Sheng LT, Pan A, Koh WP, Yuan JM, Luu HN. Composite dietary antioxidant index and the risk of colorectal cancer: Findings from the Singapore Chinese Health Study. Int J Cancer 2022; 150:1599-1608. [PMID: 35001362 PMCID: PMC8930521 DOI: 10.1002/ijc.33925] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 12/11/2021] [Accepted: 01/03/2022] [Indexed: 12/28/2022]
Abstract
Colorectal cancer (CRC) is a major contributor to cancer death globally. Several studies showed some protections by certain individual dietary antioxidants against CRC development. Epidemiologic data on the composite dietary antioxidant index (CDAI) in relation to CRC risk are sparse. Using the Singapore Chinese Health Study, an ongoing prospective cohort consisting of 61 321 cancer-free participants aged 45 to 74 years at baseline, a food-based CDAI was calculated according to a previously established and validated method that included six food-sourced antioxidants including vitamins A, C and E, manganese, selenium and zinc. Cox proportional hazard regression method was used to estimate the hazard ratios (HRs) and their 95% confidence intervals (CIs) for CRC associated with various levels of CDAI with adjustment for multiple potential confounders. After an average of 17.5 years of follow-up, 2140 participants developed CRC. HRs (95% CIs) of CRC for quartiles 2, 3 and 4 of CDAI were 0.94 (0.83-1.07), 0.86 (0.75-1.00) and 0.80 (0.66-0.98), respectively, compared to the lowest quartile (Ptrend = .02). This inverse association between CDAI and CRC risk was more apparent in women or those without a history of diabetes, without family history of CRC, never smokers or overweight/obese individuals. However, none of the heterogeneity tests for the CDAI-CRC risk association reached statistical significance. Our findings suggest that food-based antioxidants may be beneficial for reducing the risk of CRC in the general population.
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Affiliation(s)
- Yi-Chuan Yu
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Pedram Paragomi
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Renwei Wang
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Aizhen Jin
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Robert E Schoen
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Li-Ting Sheng
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - An Pan
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Woon-Puay Koh
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Singapore Institute for Clinical Sciences, Agency for Science Technology and Research (A*STAR), Singapore
| | - Jian-Min Yuan
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA.,Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hung N Luu
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA.,Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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14
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Sumida Y, Yoneda M, Seko Y, Takahashi H, Hara N, Fujii H, Itoh Y, Yoneda M, Nakajima A, Okanoue T. Role of vitamin E in the treatment of non-alcoholic steatohepatitis. Free Radic Biol Med 2021; 177:391-403. [PMID: 34715296 DOI: 10.1016/j.freeradbiomed.2021.10.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Non-alcoholic steatohepatitis (NASH), a severe form of non-alcoholic fatty liver disease (NAFLD), can progress to cirrhosis, hepatocellular carcinoma (HCC), and hepatic failure/liver transplantation. Indeed, NASH will soon be the leading cause of HCC and liver transplantation. Lifestyle intervention represents the cornerstone of NASH treatment, but it is difficult to sustain. However, no pharmacotherapies for NASH have been approved. Oxidative stress has been implicated as one of the key factors in the pathogenesis of NASH. Systematic reviews with meta-analyses have confirmed that vitamin E reduces transaminase activities and may resolve NASH histopathology without improving hepatic fibrosis. However, vitamin E is not recommended for the treatment of NASH in diabetes, NAFLD without liver biopsy, NASH cirrhosis, or cryptogenic cirrhosis. Nevertheless, vitamin E supplementation may improve clinical outcomes in patients with NASH and bridging fibrosis or cirrhosis. Further studies are warranted to confirm such effects of vitamin E and that it would reduce overall mortality/morbidity without increasing the incidence of cardiovascular events. Future clinical trials of the use of vitamin E in combination with other anti-fibrotic agents may demonstrate an additive or synergistic therapeutic effect. Vitamin E is the first-line pharmacotherapy for NASH, according to the consensus of global academic societies.
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Affiliation(s)
- Yoshio Sumida
- Division of Hepatology and Pancreatology, Department of Internal Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - Masato Yoneda
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Yuya Seko
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | | | - Nagisa Hara
- Liver Center, Saga University Hospital, Saga, Japan
| | - Hideki Fujii
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan.
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Masashi Yoneda
- Division of Hepatology and Pancreatology, Department of Internal Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
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15
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Zhang Y, Zhang PS, Rong ZY, Huang C. One stomach, two subtypes of carcinoma—the differences between distal and proximal gastric cancer. Gastroenterol Rep (Oxf) 2021; 9:489-504. [PMID: 34925847 PMCID: PMC8677565 DOI: 10.1093/gastro/goab050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/13/2021] [Accepted: 08/13/2021] [Indexed: 12/13/2022] Open
Abstract
Abstract
Gastric cancer (GC) is one of the most common malignant tumors of the digestive tract, posing a significant risk to human health. Over the past 10 years, the pathological characteristics and the prognosis of GC have been determined based on the locations of the tumors that were then classified into two types—proximal and distal GC. This review focuses on the differences in epidemiology, etiology, cell source, pathological characteristics, gene expression, molecular markers, manifestations, treatment, prognosis, and prevention between proximal and distal GC to provide guidance and a basis for clinical diagnosis and treatment.
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Affiliation(s)
- Yuan Zhang
- Department of Gastrointestinal Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Peng-Shan Zhang
- Department of Gastrointestinal Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Ze-Yin Rong
- Department of Gastrointestinal Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Chen Huang
- Department of Gastrointestinal Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, P. R. China
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16
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Abstract
Cigarette smoke (CS) is likely the most common preventable cause of human morbidity and mortality worldwide. Consequently, inexpensive interventional strategies for preventing CS-related diseases would positively impact health systems. Inhaled CS is a powerful inflammatory stimulus and produces a shift in the normal balance between antioxidants and oxidants, inducing oxidative stress in both the respiratory system and throughout the body. This enduring and systemic pro-oxidative state within the body is reflected by increased levels of oxidative stress and inflammation biomarkers seen in smokers. Smokers might benefit from consuming antioxidant supplements, or a diet rich in fruit and vegetables, which can reduce the CS-related oxidative stress. This review provides an overview of the plasma profile of antioxidants observable in smokers and examines the heterogeneous literature to elucidate and discuss the effectiveness of interventional strategies based on antioxidant supplements or an antioxidant-rich diet to improve the health of smokers. An antioxidant-rich diet can provide an easy-to-implement and cost-effective preventative strategy to reduce the risk of CS-related diseases, thus being one of the simplest ways for smokers to stay in good health for as long as possible. The health benefits attributable to the intake of antioxidants have been observed predominantly when these have been consumed within their natural food matrices in an optimal antioxidant-rich diet, while these preventive effects are rarely achieved with the intake of individual antioxidants, even at high doses.
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17
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Karbownik MS, Horne R, Paul E, Kowalczyk E, Szemraj J. Determinants of Knowledge About Dietary Supplements Among Polish Internet Users: Nationwide Cross-sectional Study. J Med Internet Res 2021; 23:e25228. [PMID: 33658173 PMCID: PMC8100877 DOI: 10.2196/25228] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/10/2020] [Accepted: 02/04/2021] [Indexed: 12/14/2022] Open
Abstract
Background An accurate understanding of dietary supplements (DS) is a prerequisite for informed decisions regarding their intake. However, there is a need for studies on this understanding among the public based on validated research tools. Objective This study aims to assess the knowledge about DS among Polish internet users with no medical education and to identify its determinants and design an appropriate predictive model. Methods The study protocol was prospectively registered with a statistical analysis plan. Polish users of a web-based health service and a social networking service were administered a survey consisting of the recently developed questionnaire on knowledge about DS, the questionnaire on trust in advertising DS, the beliefs about medicines questionnaire, and several other health-related single-item measures and sociodemographic questions. The results were subjected to general linear modeling. Results A total of 6273 participants were included. Of the 17 yes or no questions in the questionnaire of knowledge about DS, the mean number of correct responses was 9.0 (95% CI 8.9-9.1). Health service users performed worse than social networking users by 2.3 points (95% CI 2.1-2.5) in an analysis adjusted for potential confounders. Internet users had fewer true beliefs about DS if they presented higher trust in their advertising (adjusted β=−.37; 95% CI −.39 to −.34), used DS (adjusted β=−.14; 95% CI −.17 to −.12), experienced their positive effect (adjusted β=−.16; 95% CI −.18 to −.13), were older or younger than 35 years (adjusted β=−.14; 95% CI −.17 to −.12), expressed interest in the topic of DS (adjusted β=−.10; 95% CI −.13 to −.08), reported getting information about the products from friends (adjusted β=−.13; 95% CI −.15 to −.11), and believed that medicines are harmful (adjusted β=−.12; 95% CI −.15 to −.10). The proposed 5-predictor model could explain 31.2% of the variance in knowledge about DS. The model appeared resistant to overfitting and was able to forecast most of the observed associations. Conclusions Polish internet users with no medical education exhibit some false beliefs regarding DS. Trusting the advertising of DS appears to conflict with knowledge about them. There is an urgent need for effective web-based educational campaigns on DS and the promotion of advertising literacy. After the proposed predictive model is externally validated, it may help identify the least informed target audience.
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Affiliation(s)
| | - Robert Horne
- Centre for Behavioural Medicine, The School of Pharmacy, University College London, London, United Kingdom
| | | | - Edward Kowalczyk
- Department of Pharmacology and Toxicology, Medical University of Lodz, Lodz, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
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18
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Immune cell - produced ROS and their impact on tumor growth and metastasis. Redox Biol 2021; 42:101891. [PMID: 33583736 PMCID: PMC8113043 DOI: 10.1016/j.redox.2021.101891] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/31/2021] [Accepted: 02/01/2021] [Indexed: 12/19/2022] Open
Abstract
Reactive oxygen species (ROS) are derivatives of molecular oxygen (O2) involved in various physiological and pathological processes. In immune cells, ROS are mediators of pivotal functions such as phagocytosis, antigen presentation and recognition, cytolysis as well as phenotypical differentiation. Furthermore, ROS exert immunosuppressive effects on T and natural killer (NK) cells which is of particular importance in the so-called “tumor microenvironment” (TME) of solid tumors. This term describes the heterogenous group of non-malignant cells including tumor-associated fibroblasts and immune cells, vascular cells, bacteria etc. by which cancer cells are surrounded and with whom they engage in functional crosstalk. Importantly, pharmacological targeting of the TME and, specifically, tumor-associated immune cells utilizing immune checkpoint inhibitors - monoclonal antibodies that mitigate immunosuppression - turned out to be a major breakthrough in the treatment of malignant tumors. In this review, we aim to give an overview of the role that ROS produced in tumor-associated immune cells play during initiation, progression and metastatic outgrowth of solid cancers. Finally, we summarize findings on how ROS in the TME could be targeted therapeutically to increase the efficacy of cancer immunotherapy and discuss factors determining therapeutic success of redox modulation in tumors.
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19
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Kwon Y. Possible Beneficial Effects of N-Acetylcysteine for Treatment of Triple-Negative Breast Cancer. Antioxidants (Basel) 2021; 10:169. [PMID: 33498875 PMCID: PMC7911701 DOI: 10.3390/antiox10020169] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/21/2021] [Accepted: 01/21/2021] [Indexed: 12/24/2022] Open
Abstract
N-acetylcysteine (NAC) is a widely used antioxidant with therapeutic potential. However, the cancer-promoting effect of NAC observed in some preclinical studies has raised concerns regarding its clinical use. Reactive oxygen species (ROS) can mediate signaling that results in both cancer-promoting and cancer-suppressing effects. The beneficial effect of NAC may depend on whether the type of cancer relies on ROS signaling for its survival and metastasis. Triple-negative breast cancer (TNBC) has aggressive phenotypes and is currently treated with standard chemotherapy as the main systemic treatment option. Particularly, basal-like TNBC cells characterized by inactivated BRCA1 and mutated TP53 produce high ROS levels and rely on ROS signaling for their survival and malignant progression. In addition, the high ROS levels in TNBC cells can mediate the interplay between cancer cells and the tissue microenvironment (TME) to trigger the recruitment and conversion of stromal cells and induce hypoxic responses, thus leading to the creation of cancer-supportive TMEs and increased cancer aggressiveness. However, NAC treatment effectively reduces the ROS production and ROS-mediated signaling that contribute to cell survival, metastasis, and drug resistance in TNBC cells. Therefore, the inclusion of NAC in standard chemotherapy could probably provide additional benefits for TNBC patients.
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Affiliation(s)
- Youngjoo Kwon
- Department of Food Science and Engineering, Ewha Womans University, Seoul 03760, Korea
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20
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Irrazabal T, Thakur BK, Croitoru K, Martin A. Preventing Colitis-Associated Colon Cancer With Antioxidants: A Systematic Review. Cell Mol Gastroenterol Hepatol 2021; 11:1177-1197. [PMID: 33418102 PMCID: PMC7907812 DOI: 10.1016/j.jcmgh.2020.12.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/30/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022]
Abstract
Inflammatory bowel disease (IBD) patients have an increased risk of developing colitis-associated colon cancer (CAC); however, the basis for inflammation-induced genetic damage requisite for neoplasia is unclear. Several studies have shown that IBD patients have signs of increased oxidative damage, which could be a result of genetic and environmental factors such as an excess in oxidant molecules released during chronic inflammation, mitochondrial dysfunction, a failure in antioxidant capacity, or oxidant promoting diets. It has been suggested that chronic oxidative environment in the intestine leads to the DNA lesions that precipitate colon carcinogenesis in IBD patients. Indeed, several preclinical and clinical studies show that different endogenous and exogenous antioxidant molecules are effective at reducing oxidation in the intestine. However, most clinical studies have focused on the short-term effects of antioxidants in IBD patients but not in CAC. This review article examines the role of oxidative DNA damage as a possible precipitating event in CAC in the context of chronic intestinal inflammation and the potential role of exogenous antioxidants to prevent these cancers.
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Affiliation(s)
| | - Bhupesh K Thakur
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Kenneth Croitoru
- Department of Medicine, Division of Gastroenterology, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Alberto Martin
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.
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Behrendt I, Eichner G, Fasshauer M. Association of Antioxidants Use with All-Cause and Cause-Specific Mortality: A Prospective Study of the UK Biobank. Antioxidants (Basel) 2020; 9:E1287. [PMID: 33339307 PMCID: PMC7766648 DOI: 10.3390/antiox9121287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/07/2020] [Accepted: 12/14/2020] [Indexed: 11/22/2022] Open
Abstract
Prospective studies and randomized controlled trials elucidating the impact of antioxidants supplementation on mortality risk are inconclusive. The present analysis determined association between regular antioxidants use and all-cause (primary objective), as well as cause-specific, mortality in 345,626 participants of the UK Biobank cohort using Cox proportional hazard models. All models were adjusted for confounders and multiple testing. Antioxidants users were defined as participants who indicated to regularly use at least one of the following: multivitamins, vitamin C, vitamin E, selenium, and zinc. Median age of antioxidants users (n = 101,159) and non-users (n = 244,467) at baseline was 57 years. During 3.9 million person-years and a median follow-up of 11.5 years, 19,491 deaths occurred. Antioxidants use was not significantly associated with all-cause, cancer, and non-cancer mortality including several cancer and non-cancer subtypes. Interestingly, mortality risk from respiratory disease was significantly 21% lower among antioxidants users as compared to non-users (hazard ratio: 0.79; 95% confidence interval: 0.67, 0.92). In conclusion, the present study findings do not support recommendations for antioxidants supplementation to prevent all-cause, cancer, or non-cancer mortality on a population level. The significant inverse association between antioxidants use and respiratory disease mortality needs further study.
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Affiliation(s)
- Inken Behrendt
- Institute of Nutritional Science, Justus-Liebig University of Giessen, 35390 Giessen, Germany;
| | - Gerrit Eichner
- Mathematical Institute, Justus-Liebig University of Giessen, 35392 Giessen, Germany;
| | - Mathias Fasshauer
- Institute of Nutritional Science, Justus-Liebig University of Giessen, 35390 Giessen, Germany;
- Department of Internal Medicine (Endocrinology, Nephrology, and Rheumatology), University of Leipzig, 04103 Leipzig, Germany
- Leipzig University Medical Center, IFB AdiposityDiseases, 04103 Leipzig, Germany
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Jaganjac M, Milkovic L, Sunjic SB, Zarkovic N. The NRF2, Thioredoxin, and Glutathione System in Tumorigenesis and Anticancer Therapies. Antioxidants (Basel) 2020; 9:E1151. [PMID: 33228209 PMCID: PMC7699519 DOI: 10.3390/antiox9111151] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer remains an elusive, highly complex disease and a global burden. Constant change by acquired mutations and metabolic reprogramming contribute to the high inter- and intratumor heterogeneity of malignant cells, their selective growth advantage, and their resistance to anticancer therapies. In the modern era of integrative biomedicine, realizing that a personalized approach could benefit therapy treatments and patients' prognosis, we should focus on cancer-driving advantageous modifications. Namely, reactive oxygen species (ROS), known to act as regulators of cellular metabolism and growth, exhibit both negative and positive activities, as do antioxidants with potential anticancer effects. Such complexity of oxidative homeostasis is sometimes overseen in the case of studies evaluating the effects of potential anticancer antioxidants. While cancer cells often produce more ROS due to their increased growth-favoring demands, numerous conventional anticancer therapies exploit this feature to ensure selective cancer cell death triggered by excessive ROS levels, also causing serious side effects. The activation of the cellular NRF2 (nuclear factor erythroid 2 like 2) pathway and induction of cytoprotective genes accompanies an increase in ROS levels. A plethora of specific targets, including those involved in thioredoxin (TRX) and glutathione (GSH) systems, are activated by NRF2. In this paper, we briefly review preclinical research findings on the interrelated roles of the NRF2 pathway and TRX and GSH systems, with focus given to clinical findings and their relevance in carcinogenesis and anticancer treatments.
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Affiliation(s)
| | | | | | - Neven Zarkovic
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia; (M.J.); (L.M.); (S.B.S.)
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Nejabati HR, Schmeisser K, Shahnazi V, Samimifar D, Faridvand Y, Bahrami-Asl Z, Fathi-Maroufi N, Nikanfar S, Nouri M. N1-Methylnicotinamide: An Anti-Ovarian Aging Hormetin? Ageing Res Rev 2020; 62:101131. [PMID: 32711159 DOI: 10.1016/j.arr.2020.101131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 02/07/2023]
Abstract
Ovarian aging occurs due to the reduction of the quality and quantity of the oocytes, and is regulated by mitochondrial survival and apoptotic signals. Reactive Oxygen Species (ROS) are one of those signals considered detrimental to cellular homeostasis. Nowadays, ROS are regarded as a regulatory factor at low levels as it induces the stress resistance which in turn increases the longevity. It is believed that the main mechanism for the life-promoting role of the ROS mediated by the 5' Adenosine Monophosphate-activated Protein Kinase (AMPK). N1-Methylnicotinamide (MNAM) is well known for its anti-diabetic, anti-thrombotic, and anti-inflammatory activity. Aldehyde oxidase 1 (AOX1) is a detoxifying enzyme, which metabolizes the MNAM and produces two metabolites including N1-methyl-2-pyridone-5- carboxamide (2py) and N1-methyl-4-pyridone-3-carboxamide (4py). The activity of AOX1 enhances the production of ROS and improves the longevity. It has been reported that the MNAM could postpone the aging through the induction of low-level stress. It has been documented that the production of MNAM is significantly higher in the cumulus cells of the patients with Polycystic Ovary Syndrome (PCOS) and its administration on the rat model of PCOS has been shown to alleviate the hyperandrogenism and successfully activate the ovarian AMPK. Therefore, it can be hypothesized that the anti-ovarian aging effects of the MNAM are possibly based on the activation of AMPK through transient elevation of the ROS.
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Mezerji NMG, Moghimbeigi A, Eghbalian M, Kopaei MR. Investigating the effect of herbal antioxidants on the process of colon cancer treatment: A systematic review. COGENT MEDICINE 2020. [DOI: 10.1080/2331205x.2020.1735682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
| | - Abbas Moghimbeigi
- Department of Epidemiology and Biostatistics, School of Public Health, Alborz University of Medical Sciences Karaj Iran
| | - Mostafa Eghbalian
- Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences Hamadan Iran
| | - Mahmoud Rafieian Kopaei
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences Shahrekord Iran
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Cortés‐Jofré M, Rueda J, Asenjo‐Lobos C, Madrid E, Bonfill Cosp X. Drugs for preventing lung cancer in healthy people. Cochrane Database Syst Rev 2020; 3:CD002141. [PMID: 32130738 PMCID: PMC7059884 DOI: 10.1002/14651858.cd002141.pub3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND This is the second update of this Cochrane Review. Some studies have suggested a protective effect of antioxidant nutrients and higher dietary levels of fruits and vegetables on lung cancer. OBJECTIVES To determine whether vitamins and minerals and other potential agents, alone or in combination, reduce lung cancer incidence and lung cancer mortality in healthy populations. SEARCH METHODS We searched CENTRAL, MEDLINE and Embase from 1974 to May 2019 and screened references included in published studies and reviews. SELECTION CRITERIA We included randomised controlled trials (RCTs) comparing vitamins or mineral supplements with placebo, administered to healthy people with the aim of preventing lung cancer. DATA COLLECTION AND ANALYSIS Four review authors independently selected the trials to be included in the review, assessed their methodological quality and extracted data. For dichotomous outcomes we calculated risk ratios (RRs) and 95% confidence intervals (CIs) and pooled results using the random-effects model. We assessed the risk of bias using Cochrane's 'Risk of bias' assessment tool and certainty of evidence using the GRADE approach. MAIN RESULTS In this update, we identified three new trials for a total of 12 studies. Six analysed vitamin A, three vitamin C, three combined vitamin D3 + calcium, four vitamin E combined with other products, one selenium supplements and nine studied combinations of two or more products. Four studies included only men and five only women. Vitamin A results in little to no difference in lung cancer incidence (RR 1.09, 95% CI 1.00 to 1.19; 5 RCTs, 212314 participants; high-certainty evidence) and lung cancer mortality (RR 1.06, 95% CI 0.81 to 1.38; 3 RCTs, 190118 participants; high-certainty evidence). But in smokers or asbestos workers vitamin A increases the risk of lung cancer incidence (RR 1.10, 95% CI 1.01 to 1.20; 3 RCTs, 43995 participants; high-certainty evidence), lung cancer mortality (RR 1.18, 95% CI 1.01 to 1.38; 2 RCTs, 29426 participants; high-certainty evidence) and all-cause mortality (RR 1.09, 95% CI 1.05 to 1.13; 2 RCTs, 32883 participants; high-certainty evidence). Vitamin A increases the risk of minor side effects, such as yellowing of the skin and minor gastrointestinal symptoms (high-certainty evidence). Vitamin C likely results in little to no difference in lung cancer incidence (RR 1.29, 95% CI 0.67 to 2.49; 2 RCTs, 14953 participants; moderate-certainty evidence). In women, vitamin C increases the risk of lung cancer incidence (RR 1.84, 95% CI 1.14 to 2.95; 1 RCT, 7627 participants; high-certainty evidence). In men, vitamin C results in little to no difference in mortality for lung cancer (RR 0.81, 95% CI 0.53 to 1.23; 1 RCT, 7326 participants; high-certainty evidence). Vitamin D + calcium may result in little to no difference in lung cancer incidence in postmenopausal women (RR 0.90, 95% CI 0.39 to 2.08; 3 RCTs, 37601 women; low-certainty evidence). Vitamin E results in little to no difference in lung cancer incidence (RR 1.01, 95% CI 0.90 to 1.14; 3 RCTs, 36841 participants; high-certainty evidence) or to lung cancer mortality (RR 0.96, 95% CI 0.77 to 1.18; 2 RCTs, 29214 participants; high-certainty evidence), but increases the risk of haemorrhagic strokes (hazard ratio (HR), 1.74, 95% CI 1.04 to 2.91; 1 RCT, 14641 participants; high-certainty evidence). Calcium results in little to no difference in lung cancer incidence in postmenopausal women (RR 0.65, 95% CI 0.13 to 3.18; 1 RCT, 733 participants) or in risk of renal calculi (RR 1.94, 95% CI 0.20 to 18.57; 1 RCT, 733 participants; low-certainty evidence). Selenium in men results in little to no difference in lung cancer incidence (RR 1.11, 95% CI 0.80 to 1.54; 1 RCT, 17448 participants; high-certainty evidence) and lung cancer mortality (RR 1.09, 95% CI 0.72 to 1.66; 1 RCT, 17448 participants; high-certainty evidence) and increases the risk for grade 1 to 2 dermatitis (RR 1.16, 95% CI 1.04 to 1.31; 1 RCT, 17448 participants; high-certainty evidence) and for alopecia (RR 1.28, 95% CI 1.07 to 1.53; 1 RCT, 17448 participants; high-certainty evidence). The combination of vitamins A, C, E + selenium + zinc results in little to no difference in lung cancer incidence (RR 0.64, 95% CI 0.28 to 1.48; 1 RCT, 12741 participants; high-certainty evidence). AUTHORS' CONCLUSIONS Well-designed RCTs have shown no beneficial effect of supplements for the prevention of lung cancer and lung cancer mortality in healthy people. Vitamin A supplements increase lung cancer incidence and mortality in smokers or persons exposed to asbestos. Vitamin C increases lung cancer incidence in women. Vitamin E increases the risk of haemorrhagic strokes.
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Affiliation(s)
- Marcela Cortés‐Jofré
- Universidad Católica de la SantísimaConcepciónChile
- Autonomous University of BarcelonaDoctoral Program in Research Methodology and Public HealthBarcelonaSpain
| | - José‐Ramón Rueda
- University of the Basque CountryDepartment of Preventive Medicine and Public HealthBarrio SarrienaS.N.LeioaBizkaiaSpainE‐48080
| | - Claudia Asenjo‐Lobos
- Autonomous University of BarcelonaDoctoral Program in Research Methodology and Public HealthBarcelonaSpain
- University of ConcepciónConcepciónChile
| | - Eva Madrid
- Cochrane Centre School of Medicine Universidad de ValparaisoInterdisciplinary Centre for Health Studies CIESALViña del MarChile
| | - Xavier Bonfill Cosp
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 167Pavilion 18BarcelonaCatalunyaSpain08025
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Kouka P, Tekos F, Papoutsaki Z, Stathopoulos P, Halabalaki M, Tsantarliotou M, Zervos I, Nepka C, Liesivuori J, Rakitskii VN, Tsatsakis A, Veskoukis AS, Kouretas D. Olive oil with high polyphenolic content induces both beneficial and harmful alterations on rat redox status depending on the tissue. Toxicol Rep 2020; 7:421-432. [PMID: 32140426 PMCID: PMC7052070 DOI: 10.1016/j.toxrep.2020.02.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 01/18/2023] Open
Abstract
Olive oil (OO) possesses a predominant role in the diet of Mediterranean countries. According to a health claim approved by the European Food Safety Authority, OO protects against oxidative stress‑induced lipid peroxidation in human blood, when it contains at least 5 mg of hydroxytyrosol and its derivatives per 20 g. However, studies regarding the effects of a total OO biophenols on redox status in vivo are scarce and either observational and do not provide a holistic picture of their action in tissues. Following a series of in vitro screening tests an OO containing biophenols at 800 mg/kg of OO was administered for 14 days to male Wistar rats at a dose corresponding to 20 g OO/per day to humans. Our results showed that OO reinforced the antioxidant profile of blood, brain, muscle and small intestine, it induced oxidative stress in spleen, pancreas, liver and heart, whereas no distinct effects were observed in lung, colon and kidney. The seemingly negative effects of OO follow the recently formulated idea in toxicology, namely the real life exposure scenario. This study reports that OO, although considered a nutritional source rich in antioxidants, it exerts a tissues specific action when administered in vivo.
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Key Words
- Biophenols
- Blood
- CARB, protein carbonyls
- CAT, catalase
- GSH, glutathione
- HT, hydroxytyrosol
- OLEA, oleacein
- OLEO, oleocanthal
- OO, olive oil
- Olive oil
- Real life exposure scenario
- Redox status
- T, tyrosol
- TAC, total antioxidant capacity
- TBARS, thiobarbituric acid reactive substances
- Tissues
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Affiliation(s)
- Paraskevi Kouka
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Fotios Tekos
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Zoi Papoutsaki
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of University of Athens, 15771 Athens, Greece
| | - Panagiotis Stathopoulos
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of University of Athens, 15771 Athens, Greece
| | - Maria Halabalaki
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of University of Athens, 15771 Athens, Greece
| | - Maria Tsantarliotou
- Department of Physiology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University, 54124 Thessaloniki, Greece
| | - Ioannis Zervos
- Department of Physiology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University, 54124 Thessaloniki, Greece
| | - Charitini Nepka
- Department of Pathology, University Hospital of Larissa, 41110 Larissa, Greece
| | | | - Valerii N. Rakitskii
- Federal Scientific Center of Hygiene, F.F. Erisman, 2, Semashko Street, Mytishchi, Moscow Region 141014, Russia
| | - Aristidis Tsatsakis
- Center of Toxicology Science & Research, Medical School, University of Crete, Heraklion, Crete, Greece
| | - Aristidis S. Veskoukis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Demetrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
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Zhong GC, Pu JY, Wu YL, Yi ZJ, Wan L, Wang K, Hao FB, Zhao Y, Gong JP. Total Antioxidant Capacity and Pancreatic Cancer Incidence and Mortality in the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial. Cancer Epidemiol Biomarkers Prev 2020; 29:1019-1028. [PMID: 32051196 DOI: 10.1158/1055-9965.epi-19-1511] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/09/2020] [Accepted: 02/05/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Total antioxidant capacity (TAC) reflects an individual's overall antioxidant intake. We sought to clarify whether higher TAC is associated with lower risks of pancreatic cancer incidence and mortality in the U.S. general population. METHODS A total of 96,018 American adults were identified from the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial. A ferric-reducing ability of plasma score was used to reflect an individual's TAC intake from diet and/or supplements. Cox regression was used to calculate hazard ratios (HR) for pancreatic cancer incidence, and competing risk regression was used to calculate subdistribution HRs for pancreatic cancer mortality. Restricted cubic spline regression was used to test nonlinearity. RESULTS A total of 393 pancreatic cancer cases and 353 pancreatic cancer-related deaths were documented. Total (diet + supplements) TAC was found to be inversely associated with pancreatic cancer incidence (HR quartile 4 vs. quartile 1 = 0.53; 95% confidence interval, 0.39-0.72; P trend = 0.0002) and mortality (subdistribution HR quartile 4 vs. quartile 1 = 0.52; 95% confidence interval 0.38-0.72; P trend = 0.0003) in a nonlinear dose-response manner (all P nonlinearity < 0.01). Similar results were observed for dietary TAC. No association of supplemental TAC with pancreatic cancer incidence and mortality was found. CONCLUSIONS In the U.S. general population, dietary but not supplemental TAC level is inversely associated with risks of pancreatic cancer incidence and mortality in a nonlinear dose-response pattern. IMPACT This is the first prospective study indicating that a diet rich in antioxidants may be beneficial in decreasing pancreatic cancer incidence and mortality.
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Affiliation(s)
- Guo-Chao Zhong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian-Yuan Pu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi-Lin Wu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhu-Jun Yi
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lun Wan
- Department of Hepatobiliary Surgery, The People's Hospital of Dazu district, Chongqing, China
| | - Kang Wang
- Department of Breast and Endocrine Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Fa-Bao Hao
- Pediatric Surgery Center, Qingdao Women and Children's Hospital, Qingdao University, Qingdao, Shandong, China
| | - Yong Zhao
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Jian-Ping Gong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Vilar-Gomez E, Vuppalanchi R, Gawrieh S, Ghabril M, Saxena R, Cummings OW, Chalasani N. Vitamin E Improves Transplant-Free Survival and Hepatic Decompensation Among Patients With Nonalcoholic Steatohepatitis and Advanced Fibrosis. Hepatology 2020; 71:495-509. [PMID: 30506586 DOI: 10.1002/hep.30368] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/19/2018] [Indexed: 02/06/2023]
Abstract
Vitamin E improves liver histology in adults with nonalcoholic steatohepatitis (NASH) but not diabetes, but its impact on long-term patient outcomes is unknown. We evaluated whether vitamin E treatment improves clinical outcomes of NASH patients with bridging fibrosis or cirrhosis. Two hundred and thirty-six patients with biopsy-proven NASH and bridging fibrosis or cirrhosis seen at Indiana University Medical Center between October 2004 and January 2016 were included. Ninety of them took 800 international units/day of vitamin E for ≥2 years (vitamin E users) and were propensity-matched to 90 adults who did not take vitamin E (controls) after adjusting for fibrosis severity, age, gender, body mass index, comorbidities and their treatment, low-density lipoprotein cholesterol, liver biochemistries, and length of follow-up on vitamin E. Covariate-adjusted Cox and competing risk regression models were assessed to evaluate the association between vitamin E treatment and patient outcomes. The median follow-up was 5.62 (interquartile range [IQR], 4.3-7.5) and 5.6 (IQR, 4-6.9) years for vitamin E users and controls, respectively. Vitamin E users had higher adjusted transplant-free survival (78% versus 49%, P < 0.01) and lower rates of hepatic decompensation (37% versus 62%, P = 0.04) than controls. After controlling for severity of fibrosis, calendar year of patient enrollment, and other potential confounders, vitamin E treatment decreased the risk of death or transplant (adjusted hazard ratio, 0.30; 95% confidence interval [CI], 0.12-0.74; P < 0.01) and hepatic decompensation (adjusted sub-HR, 0.52; 95% CI, 0.28-0.96; P = 0.036). These benefits were evident in both those with diabetes and those without diabetes. Adjusted 10-year cumulative probabilities of hepatocellular carcinoma, vascular events, and nonhepatic cancers were not different between vitamin E-exposed patients and controls. Conclusion: Vitamin E use was associated with improved clinical outcomes in patients with NASH and bridging fibrosis or cirrhosis.
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Affiliation(s)
- Eduardo Vilar-Gomez
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN
| | - Raj Vuppalanchi
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN
| | - Samer Gawrieh
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN
| | - Marwan Ghabril
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN
| | - Romil Saxena
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN
| | - Oscar W Cummings
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN
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Ding D, Zhang J, Liu F, Li P, Qi W, Xing Y, Shi H, Jiang H, Sun H, Yin S, Salvi R. Antioxidative stress-induced damage in cochlear explants. J Otol 2019; 15:36-40. [PMID: 32110239 PMCID: PMC7033592 DOI: 10.1016/j.joto.2019.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 12/31/2022] Open
Abstract
The imbalance of reactive oxygen species and antioxidants is considered to be an important factor in the cellular injury of the inner ear. At present, great attention has been placed on oxidative stress. However, little is known about fighting oxidative stress. In the current study, we evaluated antioxidant-induced cochlear damage by applying several different additional antioxidants. To determine whether excessive antioxidants can cause damage to cochlear cells, we treated cochlear explants with 50 μM M40403, a superoxide dismutase mimetic, 50 μM coenzyme Q-10, a vitamin-like antioxidant, or 50 μM d-methionine, an essential amino acid and the important antioxidant glutathione for 48 h. Control cochlear explants without the antioxidant treatment maintained their normal structures after incubation in the standard serum-free medium for 48 h, indicating the maintenance of the inherent oxidative and antioxidant balance in these cochlear explants. In contrast, M40403 and coenzyme Q-10-treated cochlear explants displayed significant hair cell damage together with slight damage to the auditory nerve fibers. Moreover, d-methiodine-treated explants exhibited severe damage to the surface structure of hair cells and the complete loss of the spiral ganglion neurons and their peripheral fibers. These results indicate that excessive antioxidants are detrimental to cochlear cells, suggesting that inappropriate dosages of antioxidant treatments can interrupt the balance of the inherent oxidative and antioxidant capacity in the cell.
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Affiliation(s)
- Dalian Ding
- Center for Hearing and Deafness, State University of New York at Buffalo, United States.,The Third People's Hospital of Chengdu, Chengdu, China.,Huashan Hospital, Fudan University, Shanghai, China
| | | | - Fang Liu
- Beijing Hospital and National Center of Gerontology, Department of Otolaryngology, Beijing, China
| | - Peng Li
- The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Weidong Qi
- Huashan Hospital, Fudan University, Shanghai, China
| | - Yazhi Xing
- Shanghai Six People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Haibo Shi
- Shanghai Six People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Haiyan Jiang
- Center for Hearing and Deafness, State University of New York at Buffalo, United States
| | - Hong Sun
- Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shankai Yin
- Shanghai Six People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Richard Salvi
- Center for Hearing and Deafness, State University of New York at Buffalo, United States
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Thapa SB, Pandey RP, Bashyal P, Yamaguchi T, Sohng JK. Cascade biocatalysis systems for bioactive naringenin glucosides and quercetin rhamnoside production from sucrose. Appl Microbiol Biotechnol 2019; 103:7953-7969. [DOI: 10.1007/s00253-019-10060-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 12/19/2022]
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Chronic Obstructive Pulmonary Disease and Lung Cancer: Underlying Pathophysiology and New Therapeutic Modalities. Drugs 2019; 78:1717-1740. [PMID: 30392114 DOI: 10.1007/s40265-018-1001-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are major lung diseases affecting millions worldwide. Both diseases have links to cigarette smoking and exert a considerable societal burden. People suffering from COPD are at higher risk of developing lung cancer than those without, and are more susceptible to poor outcomes after diagnosis and treatment. Lung cancer and COPD are closely associated, possibly sharing common traits such as an underlying genetic predisposition, epithelial and endothelial cell plasticity, dysfunctional inflammatory mechanisms including the deposition of excessive extracellular matrix, angiogenesis, susceptibility to DNA damage and cellular mutagenesis. In fact, COPD could be the driving factor for lung cancer, providing a conducive environment that propagates its evolution. In the early stages of smoking, body defences provide a combative immune/oxidative response and DNA repair mechanisms are likely to subdue these changes to a certain extent; however, in patients with COPD with lung cancer the consequences could be devastating, potentially contributing to slower postoperative recovery after lung resection and increased resistance to radiotherapy and chemotherapy. Vital to the development of new-targeted therapies is an in-depth understanding of various molecular mechanisms that are associated with both pathologies. In this comprehensive review, we provide a detailed overview of possible underlying factors that link COPD and lung cancer, and current therapeutic advances from both human and preclinical animal models that can effectively mitigate this unholy relationship.
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Karbownik MS, Paul E, Nowicka M, Nowicka Z, Kowalczyk RP, Kowalczyk E, Pietras T. Knowledge about dietary supplements and trust in advertising them: Development and validation of the questionnaires and preliminary results of the association between the constructs. PLoS One 2019; 14:e0218398. [PMID: 31233516 PMCID: PMC6590799 DOI: 10.1371/journal.pone.0218398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/01/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Despite offering little overall benefit and emerging concerns about their safety, dietary supplements have become increasingly popular. Trust in advertising them may contribute to high confidence in dietary supplements in public opinion. AIM To develop and validate a screening questionnaire intended for the general public regarding knowledge about dietary supplements and a questionnaire on trust in advertising dietary supplements, and to identify the association between these constructs. MATERIALS AND METHODS The development and validation of the measures was overseen by the panels of experts. The conceptual frameworks of the constructs were scientifically well grounded. A set of semi-structured interviews and anonymous web-based surveys was performed. The final questionnaire was applied to 220 non-medically educated people and 121 medically educated people. RESULTS A 17-item questionnaire on knowledge about dietary supplements and eight-item questionnaire on trust in advertising dietary supplements were developed. The measures presented satisfactory proof of validity, however, the psychometric properties of the questionnaire on knowledge were modest. Both the knowledge about dietary supplements in the study group and trust in advertising them were low. A significant negative relationship was found between knowledge about dietary supplements and trust in advertising them among the general public (Pearson's r = -0.42, 95%CI: -0.52 to -0.30, p<0.0001). This association was especially pronounced in people who reported not taking dietary supplements (Pearson's r = -0.61, 95%CI: -0.76 to -0.39, p<0.0001). CONCLUSIONS The extensive advertising of dietary supplements appears to be in conflict with promoting evidence-based knowledge about them, which raises substantial concerns for the public health. The results of the study are only preliminary and require further confirmation and exploration.
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Affiliation(s)
| | | | - Maja Nowicka
- Department of Clinical Pharmacology, Medical University of Lodz, Łódź, Poland
| | - Zuzanna Nowicka
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Łódź, Poland
| | | | - Edward Kowalczyk
- Department of Pharmacology and Toxicology, Medical University of Lodz, Łódź, Poland
| | - Tadeusz Pietras
- Department of Clinical Pharmacology, Medical University of Lodz, Łódź, Poland
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Wu X, Dai H, Xu C, Liu L, Li S. Citric acid modification of a polymer exhibits antioxidant and anti‐inflammatory properties in stem cells and tissues. J Biomed Mater Res A 2019; 107:2414-2424. [DOI: 10.1002/jbm.a.36748] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 05/19/2019] [Accepted: 05/27/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaopei Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan China
- Biomedical Materials and Engineering Research Center of Hubei Province Wuhan China
| | - Chao Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan China
| | - Langlang Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan China
| | - Shipu Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan China
- Biomedical Materials and Engineering Research Center of Hubei Province Wuhan China
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Garza C, Stover PJ, Ohlhorst SD, Field MS, Steinbrook R, Rowe S, Woteki C, Campbell E. Best practices in nutrition science to earn and keep the public's trust. Am J Clin Nutr 2019; 109:225-243. [PMID: 30657846 PMCID: PMC6900562 DOI: 10.1093/ajcn/nqy337] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 10/26/2018] [Indexed: 12/11/2022] Open
Abstract
Public trust in nutrition science is the foundation on which nutrition and health progress is based, including sound public health. An ASN-commissioned, independent Advisory Committee comprehensively reviewed the literature and available public surveys about the public's trust in nutrition science and the factors that influence it and conducted stakeholder outreach regarding publicly available information. The Committee selected 7 overlapping domains projected to significantly influence public trust: 1) conflict of interest and objectivity; 2) public benefit; 3) standards of scientific rigor and reproducibility; 4) transparency; 5) equity; 6) information dissemination (education, communication, and marketing); and 7) accountability. The literature review comprehensively explored current practices and threats to public trust in nutrition science, including gaps that erode trust. Unfortunately, there is a paucity of peer-reviewed material specifically focused on nutrition science. Available material was examined, and its analysis informed the development of priority best practices. The Committee proposed best practices to support public trust, appropriate to ASN and other food and nutrition organizations motivated by the conviction that public trust remains key to the realization of the benefits of past, present, and future scientific advances. The adoption of the best practices by food and nutrition organizations, such as ASN, other stakeholder organizations, researchers, food and nutrition professionals, companies, government officials, and individuals working in the food and nutrition space would strengthen and help ensure earning and keeping the public's continued trust in nutrition science.
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Affiliation(s)
- Cutberto Garza
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Patrick J Stover
- College of Agriculture and Life Sciences, Texas A&M University, College Station, TX
| | | | - Martha S Field
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Robert Steinbrook
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT
| | | | - Catherine Woteki
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA
| | - Eric Campbell
- Center for Bioethics and Humanities, University of Colorado School of Medicine, Denver, CO
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Citrate reduced oxidative damage in stem cells by regulating cellular redox signaling pathways and represent a potential treatment for oxidative stress-induced diseases. Redox Biol 2018; 21:101057. [PMID: 30576924 PMCID: PMC6302140 DOI: 10.1016/j.redox.2018.11.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/14/2018] [Accepted: 11/21/2018] [Indexed: 02/07/2023] Open
Abstract
Chemical substances containing citrate such as calcium citrate, citrate esters and citric acid exhibit anti-oxidant and anti-inflammatory properties in different cells and tissues. However, data on the anti-oxidant and anti-inflammatory properties and mechanisms of action of citrate are insufficient. In this study, we systematically evaluated the anti-oxidant capacity of citrate using chemical, cellular and animal assays. Citrate showed a stable molecular structure and did not directly react with oxides. Citrate exerted protective and anti-apoptotic effects on BMSCs and also showed significant inhibitory effects on the oxidative stress and inflammatory reactions in the rat air pouch model. By using proteomics, we found that PPARγ contributed to the upregulation of various free radical scavenging proteins and the downregulation of diverse components of the inflammatory responses. Citrate-regulated global PPARγ expression was evidenced by the significant increase expression of PPARγ in PC12 cell line. Our results provide novel insights into the role of citrate in regulating cellular redox signaling and the function of PPARγ signaling in this process and also provide basic molecular cell biology information to improve the applications of biomaterials or stem cells as treatments for oxidative stress-induced degenerative diseases and inflammatory diseases. Citrate exerts anti-oxidant and anti-inflammatory properties in BMSCs and tissues. Citrate can upregulate and downregulate anti-oxidant and anti-inflammatory proteins in BMSCs. Citrate can regulate anti-oxidant and anti-inflammatory proteins via PPARγ dependent and independent pathways.
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Abstract
This review intends to summarize recent development on the potential nutrition implications of acute inflammation encountered during critical illness. Different aspects of the inflammatory response and their impact on nutrition management during critical illness will be discussed: the timing of the postinjury metabolic response, the integration of regulatory mechanisms involved in the metabolic response to stress, the oxidative stress, the metabolic and clinical consequences in terms of energy expenditure, use of energy, changes in body composition, and behavior.
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Affiliation(s)
- Olivier Lheureux
- Department of Intensive Care, CUB-Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Jean-Charles Preiser
- Department of Intensive Care, CUB-Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
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Tyurina YY, Shrivastava I, Tyurin VA, Mao G, Dar HH, Watkins S, Epperly M, Bahar I, Shvedova AA, Pitt B, Wenzel SE, Mallampalli RK, Sadovsky Y, Gabrilovich D, Greenberger JS, Bayır H, Kagan VE. "Only a Life Lived for Others Is Worth Living": Redox Signaling by Oxygenated Phospholipids in Cell Fate Decisions. Antioxid Redox Signal 2018; 29:1333-1358. [PMID: 28835115 PMCID: PMC6157439 DOI: 10.1089/ars.2017.7124] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 08/10/2017] [Accepted: 08/18/2017] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Oxygenated polyunsaturated lipids are known to play multi-functional roles as essential signals coordinating metabolism and physiology. Among them are well-studied eicosanoids and docosanoids that are generated via phospholipase A2 hydrolysis of membrane phospholipids and subsequent oxygenation of free polyunsaturated fatty acids (PUFA) by cyclooxygenases and lipoxygenases. Recent Advances: There is an emerging understanding that oxygenated PUFA-phospholipids also represent a rich signaling language with yet-to-be-deciphered details of the execution machinery-oxygenating enzymes, regulators, and receptors. Both free and esterified oxygenated PUFA signals are generated in cells, and their cross-talk and inter-conversion through the de-acylation/re-acylation reactions is not sufficiently explored. CRITICAL ISSUES Here, we review recent data related to oxygenated phospholipids as important damage signals that trigger programmed cell death pathways to eliminate irreparably injured cells and preserve the health of multicellular environments. We discuss the mechanisms underlying the trans-membrane redistribution and generation of oxygenated cardiolipins in mitochondria by cytochrome c as pro-apoptotic signals. We also consider the role of oxygenated phosphatidylethanolamines as proximate pro-ferroptotic signals. FUTURE DIRECTIONS We highlight the importance of sequential processes of phospholipid oxygenation and signaling in disease contexts as opportunities to use their regulatory mechanisms for the identification of new therapeutic targets.
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Affiliation(s)
- Yulia Y. Tyurina
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Indira Shrivastava
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vladimir A. Tyurin
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gaowei Mao
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Haider H. Dar
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Simon Watkins
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael Epperly
- Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anna A. Shvedova
- Exposure Assessment Branch/NIOSH/CDC, West Virginia University, Morgantown, West Virginia
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, West Virginia
| | - Bruce Pitt
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sally E. Wenzel
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Asthma Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rama K. Mallampalli
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yoel Sadovsky
- Magee Women's Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | | | - Hülya Bayır
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Valerian E. Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
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Nguyen CT, Taw MB, Wang MB. Integrative care of the patient with head and neck cancer. Laryngoscope Investig Otolaryngol 2018; 3:364-371. [PMID: 30410990 PMCID: PMC6209621 DOI: 10.1002/lio2.184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 05/30/2018] [Accepted: 06/04/2018] [Indexed: 12/16/2022] Open
Abstract
Objective To review the literature on integrative care of the patient with head and neck cancer. Methods A review of the English language literature for articles relating to integrative care of patients with head and neck cancer, focusing on treatment of sequelae of surgery and chemoradiation. Results Many studies show a significant utilization of nontraditional (complementary/integrative) treatments by patients in dealing with head and neck cancer. Treatment of head and neck cancer entails potentially debilitating consequences of surgery and/or chemoradiation on cosmesis, speech, swallowing, breathing, and quality of life. While complementary/integrative treatments for head and neck cancer are not established as effective therapies, their use for relieving sequelae of treatment, improving quality of life, and providing potential chemoprevention is well documented. Conclusion Given the landscape of increasing use of nontraditional methodologies by patients with head and neck cancer and the complexity of care, the head and neck cancer surgeon should be aware of the uses and abuses of complementary/integrative medicine by patients as they navigate their care. Level of Evidence 5
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Affiliation(s)
- Chau T Nguyen
- Ventura County Medical Center Ventura California U.S.A
| | - Malcolm B Taw
- UCLA Center for East-West Medicine Westlake Village California U.S.A
| | - Marilene B Wang
- UCLA Department of Head & Neck Surgery Los Angeles California U.S.A
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Cytochrome C oxidase Inhibition and Cold Plasma-derived Oxidants Synergize in Melanoma Cell Death Induction. Sci Rep 2018; 8:12734. [PMID: 30143716 PMCID: PMC6109085 DOI: 10.1038/s41598-018-31031-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 08/12/2018] [Indexed: 12/27/2022] Open
Abstract
Despite striking advances in the treatment of metastasized melanoma, the disease is often still fatal. Attention is therefore paid towards combinational regimens. Oxidants endogenously produced in mitochondria are currently targeted in pre-clinical and clinical studies. Cytotoxic synergism of mitochondrial cytochrome c oxidase (CcO) inhibition in conjunction with addition of exogenous oxidants in 2D and 3D melanoma cell culture models were examined. Murine (B16) and human SK-MEL-28 melanoma cells exposed to low-dose CcO inhibitors (potassium cyanide or sodium azide) or exogenous oxidants alone were non-toxic. However, we identified a potent cytotoxic synergism upon CcO inhibition and plasma-derived oxidants that led to rapid onset of caspase-independent melanoma cell death. This was mediated by mitochondrial dysfunction induced by superoxide elevation and ATP depletion. This observation was validated by siRNA-mediated knockdown of COX4I1 in SK-MEL-28 cells with cytotoxicity in the presence of exogenous oxidants. Similar effects were obtained with ADDA 5, a recently identified specific inhibitor of CcO activity showing low toxicity in vivo. Human keratinocytes were not affected by this combinational treatment, suggesting selective effects on melanoma cells. Hence, targeting mitochondrial CcO activity in conjunction with exogenous pro oxidant therapies may constitute a new and effective melanoma treatment modality.
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40
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Antioxidant Supplements and Breast Cancer: A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2018. [DOI: 10.5812/ijcm.10082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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41
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Lifestyle and bladder cancer prevention: no consistent evidence from cohort studies. Eur J Epidemiol 2017; 32:1033-1035. [PMID: 28871470 DOI: 10.1007/s10654-017-0306-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 08/30/2017] [Indexed: 12/13/2022]
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Behavioural changes, sharing behaviour and psychological responses after receiving direct-to-consumer genetic test results: a systematic review and meta-analysis. J Community Genet 2017; 9:1-18. [PMID: 28664264 PMCID: PMC5752648 DOI: 10.1007/s12687-017-0310-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 06/08/2017] [Indexed: 01/22/2023] Open
Abstract
It has been hypothesised that direct-to-consumer genetic tests (DTC-GTs) could stimulate health behaviour change. However, genetic testing may also lead to anxiety and distress or unnecessarily burden the health care system. The aim is to review and meta-analyse the effects of DTC-GT on (1) behaviour change, (2) psychological response and (3) medical consumption. A systematic literature search was performed in three databases, using "direct-to-consumer genetic testing" as a key search term. Random effects meta-analyses were performed when at least two comparable outcomes were available. After selection, 19 articles were included involving 11 unique studies. Seven studies involved actual consumers who paid the retail price, whereas four included participants who received free genetic testing as part of a research trial (non-actual consumers). In meta-analysis, 23% had a positive lifestyle change. More specifically, improved dietary and exercise practices were both reported by 12%, whereas 19% quit smoking. Seven percent of participants had subsequent preventive checks. Thirty-three percent shared their results with any health care professional and 50% with family and/or friends. Sub-analyses show that behaviour change was more prevalent among non-actual consumers, whereas sharing was more prevalent among actual consumers. Results on psychological responses showed that anxiety, distress and worry were low or absent and that the effect faded with time. DTC-GT has potential to be effective as a health intervention, but the right audience needs to be addressed with tailored follow-up. Research is needed to identify consumers who do and do not change behaviour or experience adverse psychological responses.
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Li J, Liu Y, Kim E, March JC, Bentley WE, Payne GF. Electrochemical reverse engineering: A systems-level tool to probe the redox-based molecular communication of biology. Free Radic Biol Med 2017; 105:110-131. [PMID: 28040473 DOI: 10.1016/j.freeradbiomed.2016.12.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/06/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
The intestine is the site of digestion and forms a critical interface between the host and the outside world. This interface is composed of host epithelium and a complex microbiota which is "connected" through an extensive web of chemical and biological interactions that determine the balance between health and disease for the host. This biology and the associated chemical dialogues occur within a context of a steep oxygen gradient that provides the driving force for a variety of reduction and oxidation (redox) reactions. While some redox couples (e.g., catecholics) can spontaneously exchange electrons, many others are kinetically "insulated" (e.g., biothiols) allowing the biology to set and control their redox states far from equilibrium. It is well known that within cells, such non-equilibrated redox couples are poised to transfer electrons to perform reactions essential to immune defense (e.g., transfer from NADH to O2 for reactive oxygen species, ROS, generation) and protection from such oxidative stresses (e.g., glutathione-based reduction of ROS). More recently, it has been recognized that some of these redox-active species (e.g., H2O2) cross membranes and diffuse into the extracellular environment including lumen to transmit redox information that is received by atomically-specific receptors (e.g., cysteine-based sulfur switches) that regulate biological functions. Thus, redox has emerged as an important modality in the chemical signaling that occurs in the intestine and there have been emerging efforts to develop the experimental tools needed to probe this modality. We suggest that electrochemistry provides a unique tool to experimentally probe redox interactions at a systems level. Importantly, electrochemistry offers the potential to enlist the extensive theories established in signal processing in an effort to "reverse engineer" the molecular communication occurring in this complex biological system. Here, we review our efforts to develop this electrochemical tool for in vitro redox-probing.
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Affiliation(s)
- Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Yi Liu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Eunkyoung Kim
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - John C March
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.
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Combined effect of aerobic interval training and selenium nanoparticles on expression of IL-15 and IL-10/TNF-α ratio in skeletal muscle of 4T1 breast cancer mice with cachexia. Cytokine 2017; 90:100-108. [DOI: 10.1016/j.cyto.2016.11.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/06/2016] [Accepted: 11/08/2016] [Indexed: 12/16/2022]
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Gill JG, Piskounova E, Morrison SJ. Cancer, Oxidative Stress, and Metastasis. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2017; 81:163-175. [PMID: 28082378 DOI: 10.1101/sqb.2016.81.030791] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are highly reactive molecules that arise from a number of cellular sources, including oxidative metabolism in mitochondria. At low levels they can be advantageous to cells, activating signaling pathways that promote proliferation or survival. At higher levels, ROS can damage or kill cells by oxidizing proteins, lipids, and nucleic acids. It was hypothesized that antioxidants might benefit high-risk patients by reducing the rate of ROS-induced mutations and delaying cancer initiation. However, dietary supplementation with antioxidants has generally proven ineffective or detrimental in clinical trials. High ROS levels limit cancer cell survival during certain windows of cancer initiation and progression. During these periods, dietary supplementation with antioxidants may promote cancer cell survival and cancer progression. This raises the possibility that rather than treating cancer patients with antioxidants, they should be treated with pro-oxidants that exacerbate oxidative stress or block metabolic adaptations that confer oxidative stress resistance.
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Affiliation(s)
- Jennifer G Gill
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, Texas 75390.,Department of Pediatrics, Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Elena Piskounova
- Department of Pediatrics, Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Sean J Morrison
- Department of Pediatrics, Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390.,Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390
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46
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Al-Zalabani AH, Stewart KFJ, Wesselius A, Schols AMWJ, Zeegers MP. Modifiable risk factors for the prevention of bladder cancer: a systematic review of meta-analyses. Eur J Epidemiol 2016; 31:811-51. [PMID: 27000312 PMCID: PMC5010611 DOI: 10.1007/s10654-016-0138-6] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 03/08/2016] [Indexed: 02/07/2023]
Abstract
Each year, 430,000 people are diagnosed with bladder cancer. Due to the high recurrence rate of the disease, primary prevention is paramount. Therefore, we reviewed all meta-analyses on modifiable risk factors of primary bladder cancer. PubMed, Embase and Cochrane database were systematically searched for meta-analyses on modifiable risk factors published between 1995 and 2015. When appropriate, meta-analyses (MA) were combined in meta-meta-analysis (MMA). If not, the most comprehensive MA was selected based on the number of primary studies included. Probability of causation was calculated for individual factors and a subset of lifestyle factors combined. Of 1496 articles identified, 5 were combined in MMA and 21 were most comprehensive on a single risk factor. Statistically significant associations were found for current (RR 3.14) or former (RR 1.83) cigarette smoking, pipe (RR 1.9) or cigar (RR 2.3) smoking, antioxidant supplementation (RR 1.52), obesity (RR 1.10), higher physical activity levels (RR 0.86), higher body levels of selenium (RR 0.61) and vitamin D (RR 0.75), and higher intakes of: processed meat (RR 1.22), vitamin A (RR 0.82), vitamin E (RR 0.82), folate (RR 0.84), fruit (RR 0.77), vegetables (RR 0.83), citrus fruit (RR 0.85), and cruciferous vegetables (RR 0.84). Finally, three occupations with the highest risk were tobacco workers (RR 1.72), dye workers (RR 1.58), and chimney sweeps (RR 1.53). The probability of causation for individual factors ranged from 4 to 68 %. The combined probability of causation was 81.8 %. Modification of lifestyle and occupational exposures can considerably reduce the bladder cancer burden. While smoking remains one of the key risk factors, also several diet-related and occupational factors are very relevant.
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Affiliation(s)
- Abdulmohsen H Al-Zalabani
- Department of Family and Community Medicine, College of Medicine, Taibah University, P.O. Box 42317, Madinah, 41541, Saudi Arabia
| | - Kelly F J Stewart
- Department of Complex Genetics, School of Nutrition, and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre, P. O. Box 616, 6200 MS, Maastricht, The Netherlands.
| | - Anke Wesselius
- Department of Complex Genetics, School of Nutrition, and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre, P. O. Box 616, 6200 MS, Maastricht, The Netherlands
| | - Annemie M W J Schols
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre, P. O. Box 616, 6200 MS, Maastricht, The Netherlands
| | - Maurice P Zeegers
- Department of Complex Genetics, School of Nutrition, and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre, P. O. Box 616, 6200 MS, Maastricht, The Netherlands
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Emanuele Bianchi V, Falcioni G. Reactive oxygen species, health and longevity. AIMS MOLECULAR SCIENCE 2016. [DOI: 10.3934/molsci.2016.4.479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Hackshaw-McGeagh LE, Perry RE, Leach VA, Qandil S, Jeffreys M, Martin RM, Lane JA. A systematic review of dietary, nutritional, and physical activity interventions for the prevention of prostate cancer progression and mortality. Cancer Causes Control 2015; 26:1521-50. [PMID: 26354897 PMCID: PMC4596907 DOI: 10.1007/s10552-015-0659-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 08/27/2015] [Indexed: 01/29/2023]
Abstract
PURPOSE Given the long-term, although potentially fatal, nature of prostate cancer, there is increasing observational evidence for the reduction in disease progression and mortality through changes in lifestyle factors. METHODS We systematically reviewed dietary, nutritional, and physical activity randomized interventions aimed at modifying prostate cancer progression and disease-specific mortality, including a detailed assessment of risk of bias and methodological quality. RESULTS Forty-four randomized controlled trials of lifestyle interventions, with prostate cancer progression or mortality outcomes, were identified. Substantial heterogeneity of the data prevented a meta-analysis. The included trials involved 3,418 prostate cancer patients, median 64 men per trial, from 13 countries. A trial of a nutritional supplement of pomegranate seed, green tea, broccoli, and turmeric; a trial comparing flaxseed, low-fat diet, flaxseed, and low-fat diet versus usual diet; and a trial supplementing soy, lycopene, selenium, and coenzyme Q10, all demonstrated beneficial effects. These trials were also assessed as having low risk of bias and high methodological quality (as were seven other trials with no evidence of benefit). The remaining trials were either underpowered, at high or unclear risk of bias, inadequately reported, of short duration or measured surrogate outcomes of unproven relationship to mortality or disease progression, which precluded any benefits reported being reliable. CONCLUSION Large, well-designed randomized trials with clinical endpoints are recommended for lifestyle modification interventions.
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Affiliation(s)
- Lucy E Hackshaw-McGeagh
- National Institute for Health Research (NIHR) Bristol Nutritional Biomedical Research Unit, University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, BS2 8AE, UK.
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK.
| | - Rachel E Perry
- National Institute for Health Research (NIHR) Bristol Nutritional Biomedical Research Unit, University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, BS2 8AE, UK
| | - Verity A Leach
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK
- Collaborative Leadership for Applied Health Research and Care (CLAHRC) West, University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, BS1 3NU, UK
| | - Sara Qandil
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK
| | - Mona Jeffreys
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK
| | - Richard M Martin
- National Institute for Health Research (NIHR) Bristol Nutritional Biomedical Research Unit, University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, BS2 8AE, UK
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK
| | - J Athene Lane
- National Institute for Health Research (NIHR) Bristol Nutritional Biomedical Research Unit, University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, BS2 8AE, UK
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK
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Lee B, Oh SW, Myung SK. Efficacy of Vitamin C Supplements in Prevention of Cancer: A Meta-Analysis of Randomized Controlled Trials. Korean J Fam Med 2015; 36:278-85. [PMID: 26634093 PMCID: PMC4666862 DOI: 10.4082/kjfm.2015.36.6.278] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/02/2015] [Accepted: 09/04/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Previous randomized controlled trials (RCTs) have reported inconsistent findings regarding the association between vitamin C supplementation and the risk of cancer. METHODS We performed a meta-analysis of RCTs to investigate the efficacy of vitamin C supplements for prevention of cancer. We searched the PubMed, EMBASE, and Cochrane Library databases in November 2014 using common keywords related to vitamin C supplements and cancer. RESULTS Among 785 articles, a total of seven trials were identified, which included 62,619 participants; 31,326 and 31,293 were randomized to vitamin C supplementation and control or placebo groups, respectively, which were included in the final analysis. A fixed-effects meta-analysis of all seven RCTs revealed no significant association between vitamin C supplementation and cancer (relative risk, 1.00; 95% confidence intervals, 0.95-1.05). Similarly, subgroup meta-analysis by dose of vitamin C administered singly or in combination with other supplements, follow-up period, methodological quality, cancer mortality, gender, smoking status, country, and type of cancer also showed no efficacy of vitamin C supplementation for cancer prevention. CONCLUSION This meta-analysis shows that there is no evidence to support the use of vitamin C supplements for prevention of cancer.
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Affiliation(s)
- Bobae Lee
- Huntington University, Huntington, USA. ; Loma Linda University School of Medicine, Loma Linda, CA, USA (Present)
| | - Seung-Won Oh
- Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seung-Kwon Myung
- Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, Goyang, Korea. ; Department of Family Medicine and Center for Cancer Prevention and Detection, National Cancer Center, Goyang, Korea
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