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Nordengen AL, Zheng C, Krutto A, Kværner AS, Alavi DT, Henriksen HB, Henriksen C, Smeland S, Bøhn SK, Paur I, Shaposhnikov S, Collins AR, Blomhoff R. Effect of a personalized intensive dietary intervention on base excision repair (BER) in colorectal cancer patients: Results from a randomized controlled trial. Free Radic Biol Med 2024; 218:178-189. [PMID: 38588903 DOI: 10.1016/j.freeradbiomed.2024.04.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/23/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
DNA repair is essential to maintain genomic integrity and may affect colorectal cancer (CRC) patients' risk of secondary cancers, treatment efficiency, and susceptibility to various comorbidities. Bioactive compounds identified in plant foods have the potential to modulate DNA repair mechanisms, but there is limited evidence of how dietary factors may affect DNA repair activity in CRC patients in remission after surgery. The aim of this study was to investigate the effect of a 6-month personalized intensive dietary intervention on DNA repair activity in post-surgery CRC patients (stage I-III). The present study included patients from the randomized controlled trial CRC-NORDIET, enrolled 2-9 months after surgery. The intervention group received an intensive dietary intervention emphasizing a prudent diet with specific plant-based foods suggested to dampen inflammation and oxidative stress, while the control group received only standard care advice. The comet-based in vitro repair assay was applied to assess DNA repair activity, specifically base excision repair (BER), in peripheral blood mononuclear cells (PBMCs). Statistical analyses were conducted using gamma generalized linear mixed models (Gamma GLMM). A total of 138 CRC patients were included, 72 from the intervention group and 66 from the control group. The BER activity in the intervention group did not change significantly compared to the control group. Our findings revealed a substantial range in both inter- and intra-individual levels of BER. In conclusion, the results do not support an effect of dietary intervention on BER activity in post-surgery CRC patients during a 6-month intervention period.
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Affiliation(s)
- Anne Lene Nordengen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway; Norgenotech AS, Oslo Cancer Cluster Incubator, Oslo, Norway; Department of Sport Science and Physical Education, Faculty of Health and Sport Sciences, University of Agder, Kristiansand, Norway.
| | - Congying Zheng
- Norgenotech AS, Oslo Cancer Cluster Incubator, Oslo, Norway; Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translation Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Annika Krutto
- Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Norway
| | - Ane S Kværner
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway
| | - Dena T Alavi
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway
| | - Hege B Henriksen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway
| | - Christine Henriksen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway
| | - Sigbjørn Smeland
- Division of Cancer Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Norway, Oslo, Norway
| | - Siv K Bøhn
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Ingvild Paur
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway; Norwegian Advisory Unit on Disease-Related Undernutrition, Oslo University Hospital, Oslo, Norway; Department of Clinical Service, Division of Cancer Medicine, Oslo University Hospital, Oslo, Norway
| | | | | | - Rune Blomhoff
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway; Department of Clinical Service, Division of Cancer Medicine, Oslo University Hospital, Oslo, Norway
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Macan TP, Magenis ML, Damiani AP, Monteiro IDO, Silveira GDB, Zaccaron RP, Silveira PCL, Teixeira JPF, Gajski G, Andrade VMD. Brazil nut consumption reduces DNA damage in overweight type 2 diabetes mellitus patients. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 895:503739. [PMID: 38575248 DOI: 10.1016/j.mrgentox.2024.503739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 04/06/2024]
Abstract
Type 2 diabetes mellitus (T2D) is a metabolic disease, which occurs largely due to unhealthy lifestyle. As oxidative stress is believed to promote T2D, by inducing damage to lipids, proteins, and DNA, appropriate dietary interventions seem critical to prevent, manage, and even reverse this condition. Brazil nuts (Bertholletia excelsa, H.B.K.) are nature's richest source of selenium, a mineral that has shown several health benefits. Therefore, this study aims to assess the effects of selenium consumption, through Brazil nuts, on biochemical and oxidative stress parameters, and genomic instability in T2D patients. We recruited 133 patients with T2D, registered in the Integrated Clinics of the University of Southern Santa Catarina (Brazil). Participants consumed one Brazil nut a day for six months. Blood samples and exfoliated buccal cells were collected at the beginning and the end of the intervention. The glycemic profile, lipid profile, renal profile and hepatic profile, DNA damage and selenium content were evaluated. A total of 74 participants completed the intervention. Brazil nut consumption increased selenium and GSH levels, GPx, and CAT activity while DCF and nitrites levels decreased. Total thiols increased, and protein carbonyl and MDA levels decreased. Levels of baseline and oxidative DNA damage in T2D patients were significantly decreased, as well as the frequency of micronuclei and nuclear buds. The fasting glucose levels, HDL and LDL cholesterol, and GGT levels that increased significantly in patients with type 2 diabetes were significantly reduced with nut consumption. Our results show an increase in antioxidant activity, along with reductions of protein and lipid oxidation as well as DNA damage, suggesting that Brazil nut consumption could be an ally in reducing oxidative stress and modulating the genomic instability in T2D patients.
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Affiliation(s)
- Tamires Pavei Macan
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil; Environmental Health Department, Portuguese National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
| | - Marina Lummertz Magenis
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Adriani Paganini Damiani
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Isadora de Oliveira Monteiro
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Gustavo De Bem Silveira
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Rubya Pereira Zaccaron
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Physiopathology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | | | - Goran Gajski
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Vanessa Moraes de Andrade
- Laboratory of Translational Biomedicine, Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil.
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Kaput J, Monteiro JP. Human Nutrition Research in the Data Era: Results of 11 Reports on the Effects of a Multiple-Micronutrient-Intervention Study. Nutrients 2024; 16:188. [PMID: 38257081 PMCID: PMC10819666 DOI: 10.3390/nu16020188] [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: 11/17/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Large datasets have been used in molecular and genetic research for decades, but only a few studies have included nutrition and lifestyle factors. Our team conducted an n-of-1 intervention with 12 vitamins and five minerals in 9- to 13-year-old Brazilian children and teens with poor healthy-eating indices. A unique feature of the experimental design was the inclusion of a replication arm. Twenty-six types of data were acquired including clinical measures, whole-genome mapping, whole-exome sequencing, and proteomic and a variety of metabolomic measurements over two years. A goal of this study was to use these diverse data sets to discover previously undetected physiological effects associated with a poor diet that include a more complete micronutrient composition. We summarize the key findings of 11 reports from this study that (i) found that LDL and total cholesterol and fasting glucose decreased in the population after the intervention but with inter-individual variation; (ii) associated a polygenic risk score that predicted baseline vitamin B12 levels; (iii) identified metabotypes linking diet intake, genetic makeup, and metabolic physiology; (iv) found multiple biomarkers for nutrient and food groups; and (v) discovered metabolites and proteins that are associated with DNA damage. This summary also highlights the limitations and lessons in analyzing diverse omic data.
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Affiliation(s)
| | - Jacqueline Pontes Monteiro
- Faculty of Medicine of Ribeirão Preto, Department of Pediatrics, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil;
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Fenech MF, Bull CF, Van Klinken BJW. Protective Effects of Micronutrient Supplements, Phytochemicals and Phytochemical-Rich Beverages and Foods Against DNA Damage in Humans: A Systematic Review of Randomized Controlled Trials and Prospective Studies. Adv Nutr 2023; 14:1337-1358. [PMID: 37573943 PMCID: PMC10721466 DOI: 10.1016/j.advnut.2023.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 07/19/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023] Open
Abstract
Accumulation of deoxyribonucleic acid (DNA) damage diminishes cellular health, increases risk of developmental and degenerative diseases, and accelerates aging. Optimizing nutrient intake can minimize accrual of DNA damage. The objectives of this review are to: 1) assemble and systematically analyze high-level evidence for the effect of supplementation with micronutrients and phytochemicals on baseline levels of DNA damage in humans, and 2) use this knowledge to identify which of these essential micronutrients or nonessential phytochemicals promote DNA integrity in vivo in humans. We conducted systematic literature searches of the PubMed database to identify interventional, prospective, cross-sectional, or in vitro studies that explored the association between nutrients and established biomarkers of DNA damage associated with developmental and degenerative disease risk. Biomarkers included lymphocyte chromosome aberrations, lymphocyte and buccal cell micronuclei, DNA methylation, lymphocyte/leukocyte DNA strand breaks, DNA oxidation, telomere length, telomerase activity, and mitochondrial DNA mutations. Only randomized, controlled interventions and uncontrolled longitudinal intervention studies conducted in humans were selected for evaluation and data extraction. These studies were ranked for the quality of their study design. In all, 96 of the 124 articles identified reported studies that achieved a quality assessment score ≥ 5 (from a maximum score of 7) and were included in the final review. Based on these studies, nutrients associated with protective effects included vitamin A and its precursor β-carotene, vitamins C, E, B1, B12, folate, minerals selenium and zinc, and phytochemicals such as curcumin (with piperine), lycopene, and proanthocyanidins. These findings highlight the importance of nutrients involved in (i) DNA metabolism and repair (folate, vitamin B12, and zinc) and (ii) prevention of oxidative stress and inflammation (vitamins A, C, E, lycopene, curcumin, proanthocyanidins, selenium, and zinc). Supplementation with certain micronutrients and their combinations may reduce DNA damage and promote cellular health by improving the maintenance of genome integrity.
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Affiliation(s)
- Michael F Fenech
- Molecular Diagnostics Solutions, CSIRO Health & Biosecurity, Adelaide, South Australia, Australia; Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia; Genome Health Foundation, North Brighton, South Australia, Australia.
| | - Caroline F Bull
- Molecular Diagnostics Solutions, CSIRO Health & Biosecurity, Adelaide, South Australia, Australia; School of Molecular and Biomedical Sciences, University of Adelaide, North Terrace, Adelaide, South Australia, Australia.
| | - B Jan-Willem Van Klinken
- GSK Consumer Healthcare (now named Haleon), Warren, New Jersey, USA; Brightseed, San Francisco, CA, United States.
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5
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Mišík M, Staudinger M, Kundi M, Worel N, Nersesyan A, Ferk F, Dusinska M, Azqueta A, Møller P, Knasmueller S. Use of the Single Cell Gel Electrophoresis Assay for the Detection of DNA-protective Dietary Factors: Results of Human Intervention Studies. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2023; 791:108458. [PMID: 37031732 DOI: 10.1016/j.mrrev.2023.108458] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/14/2023] [Accepted: 04/06/2023] [Indexed: 04/11/2023]
Abstract
The single cell gel electrophoresis technique is based on the measurement of DNA migration in an electric field and enables to investigate via determination of DNA-damage the impact of foods and their constituents on the genetic stability. DNA-damage leads to adverse effects including cancer, neurodegenerative disorders and infertility. In the last 25 years approximately 90 human intervention trials have been published in which DNA-damage, formation of oxidized bases, alterations of the sensitivity towards reactive oxygen species and chemicals and of repair functions were investigated with this technique. In approximately 50% of the studies protective effects were observed. Pronounced protection was found with certain plant foods (spinach, kiwi fruits, onions), coffee, green tea, honey and olive oil. Also diets with increased contents of vegetables caused positive effects. Small amounts of certain phenolics (gallic acid, xanthohumol) prevented oxidative damage of DNA; with antioxidant vitamins and cholecalciferol protective effects were only detected after intake of doses that exceed the recommended daily uptake values. The evaluation of the quality of the studies showed that many have methodological shortcomings (lack of controls, no calibration of repair enzymes, inadequate control of the compliance and statistical analyses) which should be avoided in future investigations.
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Affiliation(s)
- Miroslav Mišík
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria
| | - Marlen Staudinger
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria
| | - Michael Kundi
- Center for Public Health, Department of Environmental Health, Medical University of Vienna, Vienna, Austria
| | - Nadine Worel
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria
| | - Armen Nersesyan
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria
| | - Franziska Ferk
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria
| | - Maria Dusinska
- Health Effects Laboratory, Department of Environmental Chemistry, NILU-Norwegian Institute for Air Research, Instituttveien 18, 2002 Kjeller, Norway
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, University of Navarra, Pamplona, Spain
| | - Peter Møller
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Denmark
| | - Siegfried Knasmueller
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, A 1090 Vienna, Austria.
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6
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Andreo-López MC, Contreras-Bolívar V, Muñoz-Torres M, García-Fontana B, García-Fontana C. Influence of the Mediterranean Diet on Healthy Aging. Int J Mol Sci 2023; 24:4491. [PMID: 36901921 PMCID: PMC10003249 DOI: 10.3390/ijms24054491] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The life expectancy of the global population has increased. Aging is a natural physiological process that poses major challenges in an increasingly long-lived and frail population. Several molecular mechanisms are involved in aging. Likewise, the gut microbiota, which is influenced by environmental factors such as diet, plays a crucial role in the modulation of these mechanisms. The Mediterranean diet, as well as the components present in it, offer some proof of this. Achieving healthy aging should be focused on the promotion of healthy lifestyle habits that reduce the development of pathologies that are associated with aging, in order to increase the quality of life of the aging population. In this review we analyze the influence of the Mediterranean diet on the molecular pathways and the microbiota associated with more favorable aging patterns, as well as its possible role as an anti-aging treatment.
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Affiliation(s)
| | - Victoria Contreras-Bolívar
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (Ibs. Granada), 18014 Granada, Spain
| | - Manuel Muñoz-Torres
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (Ibs. Granada), 18014 Granada, Spain
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, 18012 Granada, Spain
- Department of Medicine, University of Granada, 18016 Granada, Spain
| | - Beatriz García-Fontana
- Instituto de Investigación Biosanitaria de Granada (Ibs. Granada), 18014 Granada, Spain
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, 18012 Granada, Spain
- Department of Cell Biology, University of Granada, 18016 Granada, Spain
| | - Cristina García-Fontana
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (Ibs. Granada), 18014 Granada, Spain
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, 18012 Granada, Spain
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7
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de Barros TT, Venâncio VDP, Hernandes LC, Greggi Antunes LM, Hillesheim E, Salomão RG, Mathias MG, Coelho-Landell CA, Toffano RBD, Almada MORDV, Camelo- JS, Moco S, Ued FDV, Kaput J, Monteiro JP. DNA damage is inversely associated to blood levels of DHA and EPA fatty acids in Brazilian children and adolescents. Food Funct 2021; 11:5115-5121. [PMID: 32432238 DOI: 10.1039/c9fo02551k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study aimed to investigate the association between DNA damage and blood levels of docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), retinol, beta-carotene and riboflavin in Brazilian children and adolescents. Subjects (n = 140) were healthy boys and girls aged 9 to 13 years in Ribeirão Preto (SP, Brazil). Data collection included anthropometry, assessment of energy intake and blood sampling. DNA damage was evaluated by single-cell gel electrophoresis (comet assay). Principal component analysis (PCA) was used to verify associations between blood concentrations of vitamins, polyunsaturated fatty acids and DNA damage. Multiple regression analyses, k-means cluster, and analysis of covariance (ANCOVA), adjusted for confounding variables such as age, sex, energy intake, body mass index and total cholesterol (when needed), were applied to confirm the associations. PCA explained 69.4% of the inverse relationships between DNA damage and blood levels of DHA, EPA, retinol, and beta-carotene. Results were confirmed by ANCOVA and multiple regression analyses for DHA and EPA. In conclusion, omega-3-fatty acids were inversely associated with DNA damage in Brazilian children and adolescents and may be a protective factor against the development of future diseases.
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Affiliation(s)
- Tamiris Trevisan de Barros
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Vinicius de Paula Venâncio
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Lívia Cristina Hernandes
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Elaine Hillesheim
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Roberta Garcia Salomão
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Mariana Giaretta Mathias
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Carolina Almeida Coelho-Landell
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Roseli Borges Donegá Toffano
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Maria Olimpia Ribeiro do Vale Almada
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - José Simon Camelo-
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Sofia Moco
- Nestlé Institute of Health Sciences, Lausanne, Switzerland
| | - Fábio da Veiga Ued
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Jim Kaput
- Nestlé Institute of Health Sciences, Lausanne, Switzerland
| | - Jacqueline Pontes Monteiro
- Department of Pediatrics and Department of Health Sciences, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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8
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Frugé AD, Smith KS, Riviere AJ, Tenpenny-Chigas R, Demark-Wahnefried W, Arthur AE, Murrah WM, van der Pol WJ, Jasper SL, Morrow CD, Arnold RD, Braxton-Lloyd K. A Dietary Intervention High in Green Leafy Vegetables Reduces Oxidative DNA Damage in Adults at Increased Risk of Colorectal Cancer: Biological Outcomes of the Randomized Controlled Meat and Three Greens (M3G) Feasibility Trial. Nutrients 2021; 13:nu13041220. [PMID: 33917165 PMCID: PMC8067874 DOI: 10.3390/nu13041220] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 12/24/2022] Open
Abstract
Green leafy vegetables (GLV) may reduce the risk of red meat (RM)-induced colonic DNA damage and colorectal cancer (CRC). We previously reported the primary outcomes (feasibility) of a 12-week randomized controlled crossover trial in adults with habitual high RM and low GLV intake with body mass index (BMI) > 30 kg/m2 (NCT03582306). Herein, our objective was to report a priori secondary outcomes. Participants were recruited and enrolled in 2018, stratified by gender, and randomized to two arms: immediate intervention group (IG, n = 26) or delayed intervention group (DG, n = 24). During the 4 week intervention period, participants were provided with frozen GLV and counseled to consume 1 cooked cup equivalent daily. Participants consumed their normal diet for the remaining 8 weeks. At each of four study visits, anthropometrics, stool, and blood were taken. Overall, plasma Vitamin K1 (0.50 ± 1.18 ng/mL, p < 0.001) increased, while circulating 8OHdG (−8.52 ± 19.05 ng/mL, p < 0.001), fecal 8OHdG (−6.78 ± 34.86 ng/mL, p < 0.001), and TNFα (−16.95 ± 60.82 pg/mL, p < 0.001) decreased during the GLV intervention compared to control periods. Alpha diversity of fecal microbiota and relative abundance of major taxa did not differ systematically across study periods. Further investigation of the effects of increased GLV intake on CRC risk is warranted.
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Affiliation(s)
- Andrew D. Frugé
- Department of Nutrition, Dietetics and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (K.S.S.); (A.J.R.); (R.T.-C.)
- Correspondence: ; Tel.: +334-844-3271
| | - Kristen S. Smith
- Department of Nutrition, Dietetics and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (K.S.S.); (A.J.R.); (R.T.-C.)
| | - Aaron J. Riviere
- Department of Nutrition, Dietetics and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (K.S.S.); (A.J.R.); (R.T.-C.)
| | - Rachel Tenpenny-Chigas
- Department of Nutrition, Dietetics and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (K.S.S.); (A.J.R.); (R.T.-C.)
| | - Wendy Demark-Wahnefried
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Anna E. Arthur
- Department of Food Science and Human Nutrition, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Champaign, IL 61801, USA;
| | - William M. Murrah
- Department of Educational Foundations, Leadership, and Technology, Auburn University, Auburn, AL 36849, USA;
| | - William J. van der Pol
- Department of Computational Biology and Bioinformatics, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Shanese L. Jasper
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Casey D. Morrow
- Department of Drug Discovery and Development, Auburn University Harrison School of Pharmacy, Auburn, AL 36849, USA; (C.D.M.); (R.D.A.)
| | - Robert D. Arnold
- Department of Drug Discovery and Development, Auburn University Harrison School of Pharmacy, Auburn, AL 36849, USA; (C.D.M.); (R.D.A.)
| | - Kimberly Braxton-Lloyd
- Department of Pharmacy Services, Auburn University Harrison School of Pharmacy, Auburn, AL 36849, USA;
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9
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Macan TP, de Amorim TA, Damiani AP, Beretta ÂCDL, Magenis ML, Vilela TC, Teixeira JP, Andrade VMD. Brazil nut prevents oxidative DNA damage in type 2 diabetes patients. Drug Chem Toxicol 2020; 45:1066-1072. [PMID: 32811197 DOI: 10.1080/01480545.2020.1808667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The Brazil nut (Bertholletia excelsa, H.B.K.) originating from the Amazon region is one of the richest known sources of selenium (Se), a micronutrient that is essential and required for optimal physiological functioning. This mineral presents several health benefits, including improvement of the redox cellular status and maintenance of genomic stability. Knowing that type 2 diabetes mellitus (T2D) is strongly linked to oxidative stress and consequently DNA damage, the aim of this study was to assess the ex vivo antioxidative effects of Se through Brazil nut consumption and its potential in preventing oxidative DNA damage induced by H2O2. In order to accomplish this, the Comet assay (single-cell gel electrophoresis) was used to measure DNA damage in peripheral blood cells harvested before and after supplementation with Brazil nut. Comet assay was also applied ex vivo to measure the potential of Se to prevent oxidative damage to DNA induced by H2O2 in blood of type 2 diabetes patients collected before and after six months of supplementation with Brazil nut. We found that supplementation with Brazil nuts significantly increased serum Se levels. Furthermore, we observed a significant increase in fasting blood glucose after six months of consuming Brazil nuts; however, no significant effect was observed on the levels of glycated hemoglobin. Finally, we noticed that the cells were more resistant to H2O2-induced DNA damage after six months of supplementation with Brazil nut. Thus, consumption of Brazil nuts could decrease oxidative DNA damage in T2D patients, probably through the antioxidative effects of Se.
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Affiliation(s)
- Tamires Pavei Macan
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil.,Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
| | - Thais Aquino de Amorim
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| | - Adriani Paganini Damiani
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| | - Ângela Caroline da Luz Beretta
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| | - Marina Lummertz Magenis
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| | - Thais Ceresér Vilela
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| | - João Paulo Teixeira
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
| | - Vanessa Moraes de Andrade
- Translational Biomedicine Laboratory, Graduate Program of Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
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10
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Fagundes GE, Macan TP, Rohr P, Damiani AP, Da Rocha FR, Pereira M, Longaretti LM, Vilela TC, Ceretta LB, Mendes C, Silveira PCL, Teixeira JPF, de Andrade VM. Vitamin D3 as adjuvant in the treatment of type 2 diabetes mellitus: modulation of genomic and biochemical instability. Mutagenesis 2020; 34:135-145. [PMID: 30726950 DOI: 10.1093/mutage/gez001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/17/2018] [Accepted: 01/24/2019] [Indexed: 02/06/2023] Open
Abstract
Type 2 diabetes mellitus has undergone a worldwide growth in incidence in the world and has now acquired epidemic status. There is a strong link between type 2 diabetes and vitamin D deficiency. Because vitamin D has beneficial effects on glucose homeostasis, the aim of this study was to evaluate the influence of vitamin D3 supplementation on the modulation of glycaemic control and other metabolic effects, as well as modulation of genomic instability in patients with type 2 diabetes. We evaluated 75 patients with type 2 diabetes, registered in the Integrated Clinics of the University of Southern Santa Catarina. Participants received 4000 IU of vitamin D3 (25(OH)D) supplementation daily for 8 weeks. Blood samples were collected at the beginning and at the end of the supplementation, and 4 weeks after the end of supplementation. The glycidic and lipid profiles [total cholesterol, high-density lipoprotein (HDL), low-density lipoprotein and triglycerides], oxidative stress, DNA damage and 25(OH)D levels were evaluated. Vitamin D3 supplementation for 8 weeks showed enough to significantly increase blood levels of 25(OH)D. A significant difference in lipid profile was observed only in non-HDL cholesterol. Significant changes were observed in glucose homeostasis (fasting glucose and serum insulin) and, in addition, a reduction in the parameters of oxidative stress and DNA damage. There was a significant reduction in the values of 25(OH)D 4 weeks after the end of the supplementation, but levels still remained above baseline. Use of vitamin D supplementation can be an ally in the health modulation of patients with type 2 diabetes mellitus.
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Affiliation(s)
- Gabriela Elibio Fagundes
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Tamires Pavei Macan
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Paula Rohr
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Adriani Paganini Damiani
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Franciani Rodrigues Da Rocha
- Laboratory of Exercise Biochemistry and Physiology, Department of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Maiara Pereira
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Luiza Martins Longaretti
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Thais Ceresér Vilela
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Luciane Bisognin Ceretta
- Graduate Program in Public Health, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Carolini Mendes
- Laboratory of Exercise Biochemistry and Physiology, Department of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Exercise Biochemistry and Physiology, Department of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
| | | | - Vanessa Moraes de Andrade
- Translational Biomedicine Laboratory, Graduate Programme of Health Sciences, University of Southern Santa Catarina, UNESC, Criciúma, Santa Catarina, Brazil
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11
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Larsen EL, Weimann A, Poulsen HE. Interventions targeted at oxidatively generated modifications of nucleic acids focused on urine and plasma markers. Free Radic Biol Med 2019; 145:256-283. [PMID: 31563634 DOI: 10.1016/j.freeradbiomed.2019.09.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/16/2019] [Accepted: 09/25/2019] [Indexed: 12/21/2022]
Abstract
Oxidative stress is associated with the development and progression of numerous diseases. However, targeting oxidative stress has not been established in the clinical management of any disease. Several methods and markers are available to measure oxidative stress, including direct measurement of free radicals, antioxidants, redox balance, and oxidative modifications of cellular macromolecules. Oxidatively generated nucleic acid modifications have attracted much interest due to the pre-mutagenic oxidative modification of DNA into 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), associated with cancer development. During the last decade, the perception of RNA has changed from that of a 'silent messenger' to an 'active contributor', and, parallelly oxidatively generated RNA modifications measured as 8-oxo-7,8-dihydro-guanosine (8-oxoGuo), has been demonstrated as a prognostic factor for all-caused and cardiovascular related mortality in patients with type 2 diabetes. Several attempts have been made to modify the amount of oxidative nucleic acid modifications. Thus, this review aims to introduce researchers to the measurement of oxidatively generated nucleic acid modifications as well as critically review previous attempts and provide future directions for targeting oxidatively generated nucleic acid modifications.
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Affiliation(s)
- Emil List Larsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark.
| | - Allan Weimann
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark
| | - Henrik Enghusen Poulsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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12
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Application of the comet assay in human biomonitoring: An hCOMET perspective. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2019; 783:108288. [PMID: 32192646 DOI: 10.1016/j.mrrev.2019.108288] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/29/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022]
Abstract
The comet assay is a well-accepted biomonitoring tool to examine the effect of dietary, lifestyle, environmental and occupational exposure on levels of DNA damage in human cells. With such a wide range of determinants for DNA damage levels, it becomes challenging to deal with confounding and certain factors are inter-related (e.g. poor nutritional intake may correlate with smoking status). This review describes the effect of intrinsic (i.e. sex, age, tobacco smoking, occupational exposure and obesity) and extrinsic (season, environmental exposures, diet, physical activity and alcohol consumption) factors on the level of DNA damage measured by the standard or enzyme-modified comet assay. Although each factor influences at least one comet assay endpoint, the collective evidence does not indicate single factors have a large impact. Thus, controlling for confounding may be necessary in a biomonitoring study, but none of the factors is strong enough to be regarded a priori as a confounder. Controlling for confounding in the comet assay requires a case-by-case approach. Inter-laboratory variation in levels of DNA damage and to some extent also reproducibility in biomonitoring studies are issues that have haunted the users of the comet assay for years. Procedures to collect specimens, and their storage, are not standardized. Likewise, statistical issues related to both sample-size calculation (before sampling of specimens) and statistical analysis of the results vary between studies. This review gives guidance to statistical analysis of the typically complex exposure, co-variate, and effect relationships in human biomonitoring studies.
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13
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Del Bo' C, Marino M, Martini D, Tucci M, Ciappellano S, Riso P, Porrini M. Overview of Human Intervention Studies Evaluating the Impact of the Mediterranean Diet on Markers of DNA Damage. Nutrients 2019; 11:nu11020391. [PMID: 30781873 PMCID: PMC6412605 DOI: 10.3390/nu11020391] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/03/2019] [Accepted: 02/11/2019] [Indexed: 01/26/2023] Open
Abstract
The Mediterranean diet (MD) is characterized by high consumption of fruits, vegetables, cereals, potatoes, poultry, beans, nuts, lean fish, dairy products, small quantities of red meat, moderate alcohol consumption, and olive oil. Most of these foods are rich sources of bioactive compounds which may play a role in the protection of oxidative stress including DNA damage. The present review provides a summary of the evidence deriving from human intervention studies aimed at evaluating the impact of Mediterranean diet on markers of DNA damage, DNA repair, and telomere length. The few results available show a general protective effect of MD alone, or in combination with bioactive-rich foods, on DNA damage. In particular, the studies reported a reduction in the levels of 8-hydroxy-2'⁻deoxyguanosine and a modulation of DNA repair gene expression and telomere length. In conclusion, despite the limited literature available, the results obtained seem to support the beneficial effects of MD dietary pattern in the protection against DNA damage susceptibility. However, further well-controlled interventions are desirable in order to confirm the results obtained and provide evidence-based conclusions.
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Affiliation(s)
- Cristian Del Bo'
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
| | - Mirko Marino
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
| | - Daniela Martini
- Human Nutrition Unit, Department of Veterinary Science, University of Parma, 43125 Parma, Italy.
| | - Massimiliano Tucci
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
| | - Salvatore Ciappellano
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
| | - Patrizia Riso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
| | - Marisa Porrini
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20122 Milan, Italy.
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14
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Díaz-Gerevini GT, Daín A, Pasqualini ME, López CB, Eynard AR, Repossi G. Diabetic encephalopathy: beneficial effects of supplementation with fatty acids ω3 and nordihydroguaiaretic acid in a spontaneous diabetes rat model. Lipids Health Dis 2019; 18:43. [PMID: 30736810 PMCID: PMC6368734 DOI: 10.1186/s12944-018-0938-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 11/30/2018] [Indexed: 02/07/2023] Open
Abstract
Background Diabetic encephalopathy is a chronic complications of diabetes mellitus that affects the central nervous system. We evaluated the effect of ω3 and ω6 polyunsaturated fatty acids (PUFAs) supplementation plus the antioxidant agent nordihydroguaiaretic acid (NDGA) on the etiopathology of diabetic encephalopathy in eSS rats, a spontaneous model of type 2 diabetes. Methods One hundred twenty spontaneous diabetic eSS male rats and 38 non-diabetic Wistar, used as healthy control, received monthly by intraperitoneal route, ω3 or ω6 PUFA (6.25 mg/kg) alone or plus NDGA (1.19 mg/kg) for 12 months. Diabetic rats had a worse performance in behavioural Hole-Board test. Histopathological analysis confirmed lesions in diabetic rats brain tissues. We also detected low expression of synaptophysin, a protein linked to release of neurotransmitters, by immunohistochemically techniques in eSS rats brain. Biochemical and histopathological studies of brain were performed at 12th month. Biochemical analysis showed altered parameters related to metabolism. High levels of markers of oxidative stress and inflammation were detected in plasma and brain tissues. Data were analysed by ANOVA test and paired t test was used by comparison of measurements of the same parameter at different times. Results The data obtained in this work showed that behavioural, biochemical and morphological alterations observed in eSS rats are compatible with previously reported indices in diabetic encephalopathy and are associated with increased glucolipotoxicity, chronic low-grade inflammation and oxidative stress burden. Experimental treatments assayed modulated the values of studied parameters. Conclusions The treatments tested with ω3 or ω3 plus NDGA showed improvement in the values of the studied parameters in eSS diabetic rats. These observations may form the basis to help in prevent and manage the diabetic encephalopathy. Electronic supplementary material The online version of this article (10.1186/s12944-018-0938-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gustavo Tomás Díaz-Gerevini
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.,Geriatric Center "San Ricardo Pampuri", Villa Carlos Paz and Gerontology Committee, Argentine Society of Diabetes, Córdoba, Argentina
| | - Alejandro Daín
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - María Eugenia Pasqualini
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Cristina B López
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.,Cátedra de Histología y Embriología, Universidad Nacional de La Rioja (UNLaR), La Rioja, Argentina
| | - Aldo R Eynard
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Gastón Repossi
- Biología Celular, Histología y Embriología. Facultad de Ciencias Médicas, INICSA CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.
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15
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Wang L, Yi Y, Yao Y, Feng G, Shu C, Wang H, Zhang X. Walnut oil improves spatial memory in rats and increases the expression of acid-sensing ion channel genes Asic2a and Asic4. Food Sci Nutr 2019; 7:293-301. [PMID: 30680184 PMCID: PMC6341134 DOI: 10.1002/fsn3.889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 10/21/2018] [Accepted: 10/29/2018] [Indexed: 12/12/2022] Open
Abstract
Although Walnut oil (WO) has been reported to enhance cognitive function, the underlying molecular mechanisms are not well understood. This study was designed to assess the effects of WO on spatial memory in rats through modulation of the expression of acid-sensing ion channel genes, Asic2a and Asic4. To investigate the effect of WO on cognitive performance, we supplemented the diet of female rats with WO. The results showed that supplementation with WO at doses of 2.2 and 11 g kg-1 day-1 significantly improved learning and memory. In vitro treatment of rat hippocampal neuronal cells with appropriate doses of WO revealed a significant increase in the expression of Asic2a and Asic4 in a dose-dependent manner at both the mRNA and protein levels. We conclude that WO intake might help to prevent cognitive decline, particularly in the elderly, and that ASIC genes in neurons can be the targets of compounds contained in the oil.
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Affiliation(s)
- Li‐Mei Wang
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
- Hubei Key Laboratory for Processing and Transformation of Agricultural ProductsWuhan Polytechnic UniversityWuhanChina
- Key Laboratory for Deep Processing of Major Grain and Oil(Wuhan Polytechnic University)of Ministry of Education in ChinaWuhanChina
| | - Yang Yi
- Hubei Key Laboratory for Processing and Transformation of Agricultural ProductsWuhan Polytechnic UniversityWuhanChina
- Key Laboratory for Deep Processing of Major Grain and Oil(Wuhan Polytechnic University)of Ministry of Education in ChinaWuhanChina
- College of Food Science and EngineeringWuhan Polytechnic UniversityWuhanChina
| | - Yi‐Lan Yao
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
| | - Ge Feng
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
| | - Chang Shu
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
| | - Hong‐Xun Wang
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
- Hubei Key Laboratory for Processing and Transformation of Agricultural ProductsWuhan Polytechnic UniversityWuhanChina
- Key Laboratory for Deep Processing of Major Grain and Oil(Wuhan Polytechnic University)of Ministry of Education in ChinaWuhanChina
| | - Xi‐Feng Zhang
- College of Biological and Pharmaceutical EngineeringWuhan Polytechnic UniversityWuhanChina
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16
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Anthropometric and Dietary Factors as Predictors of DNA Damage in Obese Women. Nutrients 2018; 10:nu10050578. [PMID: 29738492 PMCID: PMC5986458 DOI: 10.3390/nu10050578] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/25/2018] [Accepted: 05/01/2018] [Indexed: 01/17/2023] Open
Abstract
Enhanced DNA damage and disturbances in DNA repair mechanisms are reported to be involved in the pathogenesis of chronic diseases like obesity, atherosclerosis, metabolic syndrome, diabetes, and cancer. The aim of the present study was to evaluate whether anthropometric factors and dietary habits are related to endogenous DNA damage. One hundred and fourteen premenopausal, apparently healthy women were included in the study: 88 obese individuals and 26 controls. The comet assay was used to measure basal DNA damage. Biochemical measurements included lipids, apolipoproteinAI, fasting insulin, glucose, and C-reactive protein high sensitivity (CRP-hs). Dietary intakes were assessed by 3-day food records. The mean level of DNA damage was almost two times higher in obese than in non-obese women (p < 0.001). Regression modeling showed that body mass index (BMI), daily intakes of energy, and vitamin C are key predictors of variance in basal DNA damage. Our data demonstrate the impact of obesity-associated inflammation on DNA damage and indicate that regardless of obesity, the level of DNA damage can be reduced by adequate intakes of vitamins C and E. It suggests that particular attention should be paid to the content of antioxidants in the diet of obese people and further studies are needed to modify dietary guidelines to prevent DNA damage in obese individuals.
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17
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Ferk F, Kundi M, Brath H, Szekeres T, Al-Serori H, Mišík M, Saiko P, Marculescu R, Wagner KH, Knasmueller S. Gallic Acid Improves Health-Associated Biochemical Parameters and Prevents Oxidative Damage of DNA in Type 2 Diabetes Patients: Results of a Placebo-Controlled Pilot Study. Mol Nutr Food Res 2018; 62. [PMID: 29193677 DOI: 10.1002/mnfr.201700482] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 11/10/2017] [Indexed: 12/14/2022]
Abstract
SCOPE Oxidative imbalance plays a key role in cancer induction and cardiovascular diseases (CVD) in patients with type 2 diabetes mellitus (T2DM). The aim of this study is to find out if gallic acid (GA) prevents oxidative stress in diabetic patients. Therefore, we investigate its impact on oxidation of DNA bases and on other health-related macromolecules. METHODS AND RESULTS We perform an intervention study (n = 19) with GA and monitored alterations of the DNA stability in single cell gel electrophoresis (SCGE) assays in lymphocytes. Furthermore, a panel of health-related biomarkers is measured before and after consumption of GA (15 mg p-1 d-1 ) for 7 d. Significant reduction of oxidized purines (by 31%, p < 0.001, effect size 0.404) and pyrimidines (by 2%, p < 0.022, effect size 0.089) is observed in SCGE assays. Furthermore, the plasma concentrations of oxidized-LDL and C-reactive protein are reduced after the intervention by 24% (p = 0.014, effect size 0.384) and 39% (p < 0.001, effect size 0.686), respectively. No alterations of other biomarkers are found. CONCLUSIONS A small amount of GA (in the range of daily consumption in Central Europe) prevents oxidative DNA damage and reduces markers which reflect inflammation and increased risks of cancer and CVD.
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Affiliation(s)
- Franziska Ferk
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, Austria
| | - Michael Kundi
- Institute for Environmental Health, Center for Public Health, Medical University of Vienna, Austria
| | - Helmut Brath
- Diabetes Outpatient Clinic, Health Centre South, Vienna, Austria
| | - Thomas Szekeres
- Department of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Austria
| | - Halh Al-Serori
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, Austria
| | - Miroslav Mišík
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, Austria
| | - Philipp Saiko
- Department of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Austria
| | - Rodrig Marculescu
- Department of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Austria
| | | | - Siegfried Knasmueller
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, Austria
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18
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Antioxidant and antibacterial activities of polysaccharides isolated and purified from Diaphragma juglandis fructus. Int J Biol Macromol 2017; 105:431-437. [DOI: 10.1016/j.ijbiomac.2017.07.062] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/25/2017] [Accepted: 07/10/2017] [Indexed: 01/30/2023]
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19
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Hernández-Saavedra D, Strakovsky RS, Ostrosky-Wegman P, Pan YX. Epigenetic Regulation of Centromere Chromatin Stability by Dietary and Environmental Factors. Adv Nutr 2017; 8:889-904. [PMID: 29141972 PMCID: PMC5683002 DOI: 10.3945/an.117.016402] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The centromere is a genomic locus required for the segregation of the chromosomes during cell division. This chromosomal region together with pericentromeres has been found to be susceptible to damage, and thus the perturbation of the centromere could lead to the development of aneuploidic events. Metabolic abnormalities that underlie the generation of cancer include inflammation, oxidative stress, cell cycle deregulation, and numerous others. The micronucleus assay, an early clinical marker of cancer, has been shown to provide a reliable measure of genotoxic damage that may signal cancer initiation. In the current review, we will discuss the events that lead to micronucleus formation and centromeric and pericentromeric chromatin instability, as well transcripts emanating from these regions, which were previously thought to be inactive. Studies were selected in PubMed if they reported the effects of nutritional status (macro- and micronutrients) or environmental toxicant exposure on micronucleus frequency or any other chromosomal abnormality in humans, animals, or cell models. Mounting evidence from epidemiologic, environmental, and nutritional studies provides a novel perspective on the origination of aneuploidic events. Although substantial evidence exists describing the role that nutritional status and environmental toxicants have on the generation of micronuclei and other nuclear aberrations, limited information is available to describe the importance of macro- and micronutrients on centromeric and pericentromeric chromatin stability. Moving forward, studies that specifically address the direct link between nutritional status, excess, or deficiency and the epigenetic regulation of the centromere will provide much needed insight into the nutritional and environmental regulation of this chromosomal region and the initiation of aneuploidy.
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Affiliation(s)
| | | | | | - Yuan-Xiang Pan
- Division of Nutritional Sciences,,Department of Food Science and Human Nutrition,,Illinois Informatics Institute, University of Illinois at Urbana-Champaign, Champaign, IL; and
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20
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Lee MY, Kim HA, Kang MH. Comparison of lymphocyte DNA damage levels and total antioxidant capacity in Korean and American diet. Nutr Res Pract 2017; 11:33-42. [PMID: 28194263 PMCID: PMC5300945 DOI: 10.4162/nrp.2017.11.1.33] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 11/29/2016] [Accepted: 12/08/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND/OBJECTIVE This study aims to measure the in vitro antioxidant capacity of Korean diet (KD) with American diet (AD) as a control group and to examine the ex vivo DNA damage reduction effect on human lymphocytes. MATERIALS/METHODS The KD applied in this study is the standard one-week meals for Koreans (2,000 kcal/day) suggested by 2010 Dietary Reference Intakes for Koreans. The AD, which is the control group, is a one-week menu (2,000 kcal/day) that consists of foods that Americans would commonly take in according to the National Health and Nutrition Examination Survey. The antioxidant capacity of each menu was measured by means of the total phenolic assay and 3 in vitro antioxidant activity assays (2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, trolox equivalent antioxidant capacity (TEAC), Oxygen radical absorbance capacity (ORACROO·)), while the extent of ex vivo lymphocyte DNA damage was measured by means of the comet assay. RESULTS When measured by means of TEAC assay, the in vitro antioxidant capacity of the KD of the day was higher than that of the AD (P < 0.05) while there was no significant difference in total phenolic contents and DPPH and ORAC assays. The ex vivo lymphocyte DNA damage protective effect of the KD was significantly higher than that of the AD (P < 0.01). As for the one-week menu combining the menus for 7 days, the total phenolic assay (P < 0.05) and in vitro antioxidant capacity (P < 0.001, DPPH; P < 0.01, TEAC) of the KD menu were significantly higher than those of the AD menu. Likewise, the ex vivo DNA damage reduction rate of the Korean seven-day menu was significantly higher than that of the American menu (P < 0.01). CONCLUSION This study demonstrates that the high antioxidant capacity and DNA damage protective effect of KD, which consists generally of various plant foods, are higher than those of typical AD.
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Affiliation(s)
- Min Young Lee
- Department of Food Science and Nutrition, Daedeok Valley Campus, Hannam University, 461-6 Jeonmin-dong, Yuseng-gu, Daejeon 34054, Korea
| | - Hyun A Kim
- Department of Food Science and Nutrition, Daedeok Valley Campus, Hannam University, 461-6 Jeonmin-dong, Yuseng-gu, Daejeon 34054, Korea
| | - Myung Hee Kang
- Department of Food Science and Nutrition, Daedeok Valley Campus, Hannam University, 461-6 Jeonmin-dong, Yuseng-gu, Daejeon 34054, Korea
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21
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Grindel A, Brath H, Nersesyan A, Knasmueller S, Wagner KH. Association of Genomic Instability with HbA1c levels and Medication in Diabetic Patients. Sci Rep 2017; 7:41985. [PMID: 28150817 PMCID: PMC5288806 DOI: 10.1038/srep41985] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/04/2017] [Indexed: 02/06/2023] Open
Abstract
Diabetes Mellitus type 2 (DM2) is associated with increased cancer risk. Instability of the genetic material plays a key role in the aetiology of human cancer. This study aimed to analyse genomic instability with the micronucleus cytome assay in exfoliated buccal cells depending on glycated haemoglobin (HbA1c) levels and medication in 146 female DM2 patients. The occurrence of micronuclei was significantly increased in DM2 patients compared to healthy controls. Furthermore, it was doubled in DM2 patients with HbA1c > 7.5% compared to subjects with HbA1c ≤ 7.5%. Positive correlations were found between micronuclei frequencies and HbA1c as well as fasting plasma glucose. Patients under insulin treatment showed a two-fold increase in micronuclei frequencies compared to subjects under first-line medication (no drugs or monotherapy with non-insulin medication). However, after separation of HbA1c (cut-off 7.5%) only patients with severe DM2 characterised by high HbA1c and insulin treatment showed higher micronuclei frequencies but not patients with insulin treatment and low HbA1c. We demonstrated that the severity of DM2 accompanied by elevated micronuclei frequencies predict a possible enhanced cancer risk among female DM2 patients. Therapy, therefore, should focus on a strict HbA1c control and personalised medical treatments.
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Affiliation(s)
- Annemarie Grindel
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
- Research Platform Active Ageing, University of Vienna, Vienna, Austria
| | - Helmut Brath
- Diabetes Outpatient Clinic, Health Centre South, Vienna, Austria
| | - Armen Nersesyan
- Institute for Cancer Research, Medical University Vienna, Vienna, Austria
| | | | - Karl-Heinz Wagner
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
- Research Platform Active Ageing, University of Vienna, Vienna, Austria
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Nersesyan A, Hoelzl C, Ferk F, Mišík M, Al-Serori H, Setayesh T, Knasmueller S. Use of Single-cell Gel Electrophoresis Assays in Dietary Intervention Trials. THE COMET ASSAY IN TOXICOLOGY 2016. [DOI: 10.1039/9781782622895-00314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The single-cell gel electrophoresis (SCGE) technique has been frequently used to investigate the impact of consumption of complex foods and individual constituents on DNA stability in humans. Since no division or cultivation of the indicator cells (in most studies lymphocytes) is required, this approach is less costly and time consuming than cytogenetic methods. Apart from single- and double-stand breaks and apurinic sites, which can be detected under standard conditions, it is also possible to assess the formation of oxidized DNA bases and alterations of DNA repair as well as protection of the DNA against chemical carcinogens. In total, 93 studies have been published since the first use of the Comet assay in this field in 1997. The results which emerged from these studies show that human foods contain specific highly protective components (e.g. gallic acid, xanthohumol, isoflavones); promising results were also obtained with beverages (coffee and other drinks), while mixed diets with vegetables and fruits conferred no or moderate protection; however, individual plant foods (e.g. kiwis and specific cruciferous vegetables) were highly protective. It is notable that prevention of DNA damage was rarely detected under standard conditions while evidence for reduced formation of oxidized DNA bases was found in approximately 30% of the trials. In some investigations it was possible to identify the modes of action by which specific compounds prevented damage of the genetic material in additional mechanistic experiments. The currently available data show that SCGE assays are a valuable tool for identifying dietary factors which improve the stability of the genetic material and prevent adverse health effects which are causally related to DNA damage.
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Affiliation(s)
- Armen Nersesyan
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Christine Hoelzl
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Franziska Ferk
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Miroslav Mišík
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Halh Al-Serori
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Tahereh Setayesh
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
| | - Siegfried Knasmueller
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna Borschkegasse 8a 1090 Vienna Austria
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Choi Y, Abdelmegeed MA, Song BJ. Preventive effects of dietary walnuts on high-fat-induced hepatic fat accumulation, oxidative stress and apoptosis in mice. J Nutr Biochem 2016; 38:70-80. [PMID: 27732911 DOI: 10.1016/j.jnutbio.2016.08.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 05/16/2016] [Accepted: 08/10/2016] [Indexed: 01/20/2023]
Abstract
We hypothesized that dietary walnut would prevent high-fat-diet (HFD)-induced hepatic apoptosis based on its antioxidant properties. Male C57BL/6J mice were fed a rodent chow or HFD (45% energy-derived)±walnuts (21.5% energy-derived) for 6 weeks. Liver histological and biochemical analyses revealed significantly elevated fat accumulation in mice fed HFD compared to mice fed the chow or HFD±walnuts. Walnut supplementation prevented HFD-mediated alteration of the levels of key proteins in lipid homeostasis such as Sirt1, AMPK and FAS, leading to decreased fat accumulation. In addition, walnut supplementation to HFD significantly decreased the hepatic levels of cytochrome P450-2E1, nitrated proteins and lipid peroxidation. Furthermore, walnut supplementation decreased the activated cell-death-associated p-JNK and p-p38K accompanied with increased hepatocyte apoptosis in HFD group. The beneficial effects of dietary walnut likely result, at least partially, from its antioxidant ingredients and attenuating HFD-induced hepatic steatosis, nitroxidative stress and apoptosis.
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Affiliation(s)
- Youngshim Choi
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Mohamed A Abdelmegeed
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA.
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24
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Grindel A, Guggenberger B, Eichberger L, Pöppelmeyer C, Gschaider M, Tosevska A, Mare G, Briskey D, Brath H, Wagner KH. Oxidative Stress, DNA Damage and DNA Repair in Female Patients with Diabetes Mellitus Type 2. PLoS One 2016; 11:e0162082. [PMID: 27598300 PMCID: PMC5012603 DOI: 10.1371/journal.pone.0162082] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 08/17/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Diabetes mellitus type 2 (T2DM) is associated with oxidative stress which in turn can lead to DNA damage. The aim of the present study was to analyze oxidative stress, DNA damage and DNA repair in regard to hyperglycemic state and diabetes duration. METHODS Female T2DM patients (n = 146) were enrolled in the MIKRODIAB study and allocated in two groups regarding their glycated hemoglobin (HbA1c) level (HbA1c≤7.5%, n = 74; HbA1c>7.5%, n = 72). In addition, tertiles according to diabetes duration (DD) were created (DDI = 6.94±3.1 y, n = 49; DDII = 13.35±1.1 y, n = 48; DDIII = 22.90±7.3 y, n = 49). Oxidative stress parameters, including ferric reducing ability potential, malondialdehyde, oxidized and reduced glutathione, reduced thiols, oxidized LDL and F2-Isoprostane as well as the activity of antioxidant enzymes superoxide dismutase, catalase and glutathione peroxidase were measured. Damage to DNA was analyzed in peripheral blood mononuclear cells and whole blood with single cell gel electrophoresis. DNA base excision repair capacity was tested with the modified comet repair assay. Additionally, mRNA expressions of nine genes related to base excision repair were analyzed in a subset of 46 matched individuals. RESULTS No significant differences in oxidative stress parameters, antioxidant enzyme activities, damage to DNA and base excision repair capacity, neither between a HbA1c cut off />7.5%, nor between diabetes duration was found. A significant up-regulation in mRNA expression was found for APEX1, LIG3 and XRCC1 in patients with >7.5% HbA1c. Additionally, we observed higher total cholesterol, LDL-cholesterol, LDL/HDL-cholesterol, triglycerides, Framingham risk score, systolic blood pressure, BMI and lower HDL-cholesterol in the hyperglycemic group. CONCLUSION BMI, blood pressure and blood lipid status were worse in hyperglycemic individuals. However, no major disparities regarding oxidative stress, damage to DNA and DNA repair were present which might be due to good medical treatment with regular health checks in T2DM patients in Austria.
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Affiliation(s)
- Annemarie Grindel
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
- Research Platform Active Ageing, University of Vienna, Vienna, Austria
| | - Bianca Guggenberger
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - Lukas Eichberger
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - Christina Pöppelmeyer
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - Michaela Gschaider
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - Anela Tosevska
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - George Mare
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
| | - David Briskey
- School of Human Movement and Nutrition Sciences, University of Queensland, St Lucia, QLD, Australia
| | - Helmut Brath
- Diabetes Outpatient Clinic, Health Centre South, Vienna, Austria
| | - Karl-Heinz Wagner
- Department of Nutritional Sciences, Emerging Field Oxidative Stress and DNA Stability, University of Vienna, Vienna, Austria
- Research Platform Active Ageing, University of Vienna, Vienna, Austria
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Ceriello A, Testa R, Genovese S. Clinical implications of oxidative stress and potential role of natural antioxidants in diabetic vascular complications. Nutr Metab Cardiovasc Dis 2016; 26:285-292. [PMID: 27036849 DOI: 10.1016/j.numecd.2016.01.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/23/2015] [Accepted: 01/11/2016] [Indexed: 02/07/2023]
Abstract
AIMS The possible link between hyperglycaemia-induced oxidative stress (OxS) and diabetic complications is suggested by many in vitro studies. However, not much attention has been paid to the clinical evidence supporting this hypothesis, as well as to their possible therapeutic implications. DATA SYNTHESIS Some prospective studies show a direct correlation between an increase in OxS biomarkers and the appearance of diabetes complications. This is consistent with the evidence that any acute increase of glycaemia, particularly post-prandial, and hypoglycaemia causes endothelial dysfunction and inflammation, through the generation of an OxS. However, the detection of free radicals is difficult as they are highly reactive molecules with a short half-life. Instead, the metabolites of OxS are measured. Interventional trials with supplemented antioxidants have failed to show any beneficial effects. Conversely, natural foods show very promising results. CONCLUSIONS The "new antioxidant" approach includes the possibility of controlling free radical production and increasing intracellular antioxidant defence, a concept different from the old one, when antioxidant activities implied scavenging the free radicals already produced. A synergistic action in this respect could convincingly be obtained with a balanced 'Mediterranean Diet' (MedD) type. Early intensive glucose control is still the best strategy to avoid OxS and its associated diabetes complications.
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Affiliation(s)
- A Ceriello
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigacion Biomèdica en Red de Diabetes y Enfermedades Metabolicas Asociadas (CIBERDEM), Barcelona, Spain.
| | - R Testa
- Experimental Models in Clinical Pathology, INRCA-IRCCS National Institute, Ancona, Italy
| | - S Genovese
- Department of Cardiovascular and Metabolic Diseases, IRCCS Multimedica, Sesto San Giovanni, Milan, Italy.
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Choi Y, Abdelmegeed MA, Akbar M, Song BJ. Dietary walnut reduces hepatic triglyceride content in high-fat-fed mice via modulation of hepatic fatty acid metabolism and adipose tissue inflammation. J Nutr Biochem 2016; 30:116-25. [PMID: 27012628 DOI: 10.1016/j.jnutbio.2015.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/02/2015] [Accepted: 12/08/2015] [Indexed: 12/30/2022]
Abstract
In this study, we evaluated the protective effects of dietary walnuts on high-fat diet (HFD)-induced fatty liver and studied the underlying mechanisms. Male C57BL/6J mice were fed either a regular rodent chow or HFD (45% energy-derived) with or without walnuts (21.5% energy-derived) for 20weeks. Walnut supplementation did not change HFD-induced increase in body weight or visceral fat mass. However, dietary walnuts significantly decreased the amounts of hepatic triglyceride (TG) observed in HFD-fed mice. The addition of walnuts significantly altered the levels of proteins, involved in the hepatic lipid homeostasis, including AMP-activated protein kinase, fatty acid synthase and peroxisome proliferator-activated receptor-α. Since adipocyte inflammation and apoptosis are reportedly important in regulating hepatic fat accumulation, we also evaluated the protective effects of walnuts on adipose tissue injury. Real-time polymerase chain reaction results revealed that adipose tissues isolated from mice fed the HFD+walnut diets showed significantly decreased levels of macrophage infiltration with suppressed expression of proinflammatory genes compared to those significantly elevated in mice fed HFD alone. These improvements also coincided with reduction of HFD-induced apoptosis of adipocytes by dietary walnuts. However, the supplemented walnuts did not significantly alter HFD-induced peripheral glucose intolerance or insulin resistance despite a trend of improvement. Collectively, these results demonstrate that the protective effects of walnuts against HFD-induced hepatic TG accumulation in mice are mediated, at least partially, by modulating the key proteins in hepatic lipid homeostasis and suppression of the genes related to adipose tissue inflammation and macrophage infiltration as well as prevention of adipocyte apoptosis.
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Affiliation(s)
- Youngshim Choi
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Mohamed A Abdelmegeed
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Mohammed Akbar
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA.
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27
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Franzke B, Halper B, Hofmann M, Oesen S, Jandrasits W, Baierl A, Tosevska A, Strasser EM, Wessner B, Wagner KH. The impact of six months strength training, nutritional supplementation or cognitive training on DNA damage in institutionalised elderly. Mutagenesis 2015; 30:147-53. [PMID: 25527737 DOI: 10.1093/mutage/geu074] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Aging and its aligned loss of muscle mass are associated with higher levels of DNA damage and deteriorated antioxidant defence. To improve the body's overall resistance against DNA damage, maintaining a healthy and active lifestyle is desirable, especially in the elderly. As people age, many have to change their residence from home living to an institution, which is often accompanied by malnutrition, depression and inactivity. The current study aimed at investigating the effect of a 6-month progressive resistance training (RT), with or without protein and vitamin supplementation (RTS), or cognitive training (CT), on DNA strand breaks in 105 Austrian institutionalised women and men (65-98 years). DNA damage was detected by performing the single cell gel electrophoresis (comet) assay. Physical fitness was assessed using the chair rise, the 6-min-walking and the handgrip strength test. In addition, antioxidant enzyme activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) were analysed. Basal DNA damage (lysis) increased significantly after 3 months of intervention in the RT group (T1 - T2 + 20%, P = 0.001) and the RTS group (T1 - T2 + 17%, P = 0.002) and showed a similar tendency in the CT group (T1 - T2 + 21%, P = 0.059). %DNA in tail decreased in cells exposed to H2O2 significantly in the RT (T1 - T2 - 24%, P = 0.030; T1 - T3 - 18%, P = 0.019) and CT (T1 - T2 - 21%, P = 0.004; T1 - T3 - 13%, P = 0.038) groups. Only RT and RTS groups showed significant differences overtime in enzyme activity (RT + 22% CAT-activity T1 - T3, P = 0.013; RTS + 6% SOD-activity T2 - T3, P = 0.005). Contrary to the time effects, no difference between groups was detected for any parameter at any time point. Our results suggest that both CT and RT improve resistance against H2O2 induced DNA damage and that a nutritional supplement has no further protective effect in institutionalised elderly.
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Affiliation(s)
- Bernhard Franzke
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Barbara Halper
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Marlene Hofmann
- Department of Sport and Exercise Physiology, Centre for Sport Science and University Sports, University of Vienna, Auf der Schmelz 6, 1150 Vienna, Austria
| | - Stefan Oesen
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Waltraud Jandrasits
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Andreas Baierl
- Institute for Statistics and Operations Research, University of Vienna, Grillparzerstraße 7, 1010 Vienna, Austria and
| | - Anela Tosevska
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Eva-Maria Strasser
- Karl Landsteiner Institute for Remobilization and Functional Health/Institute for Physical Medicine and Rehabilitation, Kaiser Franz Joseph Spital, SMZ-Süd, Kundratstraße 3, 1100 Vienna, Austria
| | - Barbara Wessner
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria, Department of Sport and Exercise Physiology, Centre for Sport Science and University Sports, University of Vienna, Auf der Schmelz 6, 1150 Vienna, Austria
| | - Karl-Heinz Wagner
- Research Platform Active Ageing, University of Vienna, Althanstraße 14, 1090 Vienna, Austria, Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Althanstraße 14, 1090 Vienna, Austria,
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Ibero-Baraibar I, Azqueta A, Lopez de Cerain A, Martinez JA, Zulet MA. Assessment of DNA damage using comet assay in middle-aged overweight/obese subjects after following a hypocaloric diet supplemented with cocoa extract. Mutagenesis 2014; 30:139-46. [DOI: 10.1093/mutage/geu056] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Cacabelos D, Ayala V, Ramírez-Nunez O, Granado-Serrano AB, Boada J, Serrano JCE, Cabré R, Nadal-Rey G, Bellmunt MJ, Ferrer I, Pamplona R, Portero-Otin M. Dietary Lipid Unsaturation Influences Survival and Oxidative Modifications of an Amyotrophic Lateral Sclerosis Model in a Gender-Specific Manner. Neuromolecular Med 2014; 16:669-85. [DOI: 10.1007/s12017-014-8317-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Accepted: 06/20/2014] [Indexed: 12/12/2022]
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30
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Grindel A, Müllner E, Brath H, Jäger W, Henriksen T, Poulsen HE, Marko D, Wagner KH. Influence of polyphenol-rich apple pomace extract on oxidative damage to DNA in type 2 diabetes mellitus individuals. Cancer Metab 2014. [PMCID: PMC4073092 DOI: 10.1186/2049-3002-2-s1-p25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Effect of walnut oil on hyperglycemia-induced oxidative stress and pro-inflammatory cytokines production. Eur J Nutr 2014; 54:291-9. [PMID: 24817646 DOI: 10.1007/s00394-014-0710-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 04/28/2014] [Indexed: 12/22/2022]
Abstract
PURPOSE In this study, we focused on the effect of hyperglycemia on the generation of reactive oxygen species and on the release of pro-inflammatory cytokines in the human monocytic cell line (U937). We also monitored potential anti-inflammatory effects of walnut oil as well as its protective effect against oxidative damage to biopolymers (DNA and proteins). METHODS We cultured U937 cells under normoglycemic or hyperglycemic conditions for 72 h, in the absence or presence of walnut oil. We detected cell proliferation by the MTT test. To determine the antioxidant status of cells, we used the trolox equivalent antioxidant capacity method. We determined the activity of superoxide dismutase (SOD) spectrophotometrically, the oxidative damage to DNA by an enzyme-modified comet assay, and the oxidative damage to proteins by the marker-protein carbonyls and the levels of pro-inflammatory cytokines by the ELISA method. RESULTS Hyperglycemia reduced the antioxidant capacity of cells, induced oxidative damage to DNA, and increased the release of pro-inflammatory cytokines. It had no effect on cell proliferation, SOD activity, nor oxidative damage to proteins. Walnut oil significantly increased the antioxidant capacity of cells as well as SOD activity on the second and third day of incubation, but had no effect on cell proliferation and showed no protective effect against oxidative damage to DNA and proteins. The walnut oil showed both anti-inflammatory and pro-inflammatory properties depending on its concentration and time of its incubation with the monocytic cell line. CONCLUSION Our in vitro results indicate that walnut oil can diminish oxidative stress with its antioxidant properties. However, we could not confirm its protective effect against oxidative damage to DNA and proteins.
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Mullner E, Brath H, Nersesyan A, Nitz M, Petschnig A, Wallner M, Knasmuller S, Wagner KH. Nuclear anomalies in exfoliated buccal cells in healthy and diabetic individuals and the impact of a dietary intervention. Mutagenesis 2013; 29:1-6. [DOI: 10.1093/mutage/get056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Cognitive and motor perturbations in elderly with longstanding diabetes mellitus. Nutrition 2013; 30:628-35. [PMID: 24800665 DOI: 10.1016/j.nut.2013.11.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 10/11/2013] [Accepted: 11/06/2013] [Indexed: 01/21/2023]
Abstract
Type 2 diabetes mellitus is a chronic disease characterized by insulin resistance; inflammation; oxidative stress; vascular damage; and dysfunction of glucose, protein, and lipid metabolisms. However, comparatively less attention has been paid to neurologic alterations seen in elderly individuals with type 2 diabetes. We review clinical, metabolic, and biochemical aspects of diabetic encephalopathy (DE) and propose that quality of dietary lipids is closely linked to DE. This implies that preventive nutritional interventions may be designed to improve DE.
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Wallner M, Antl N, Rittmannsberger B, Schreidl S, Najafi K, Müllner E, Mölzer C, Ferk F, Knasmüller S, Marculescu R, Doberer D, Poulsen HE, Vitek L, Bulmer AC, Wagner KH. Anti-Genotoxic Potential of Bilirubin In Vivo: Damage to DNA in Hyperbilirubinemic Human and Animal Models. Cancer Prev Res (Phila) 2013; 6:1056-63. [DOI: 10.1158/1940-6207.capr-13-0125] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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