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Mizuno Y, Inaba Y, Masuoka H, Kibe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Umezaki M. Impact of modernization on oxidative stress among indigenous populations in northern Laos. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2023. [PMID: 36919625 DOI: 10.1002/ajpa.24722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/30/2022] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES To explore the impact of modernization on oxidative stress during a momentous health transition process, we investigated differences in oxidative stress among the indigenous populations of villages in northern Laos with different levels of modernization. METHODS We conducted a cross-sectional study of 380 adults in three villages with different levels of modernization. Three biomarkers related to oxidative stress were measured: urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and 8-isoprostane concentrations (both measured by liquid chromatography-tandem mass spectrometry), and blood telomere length (measured with qPCR). We examined associations between village-level modernization and oxidative stress-related biomarkers in a multilevel analysis including a random effect and covariates. RESULTS The geometric means of urinary 8-OHdG and 8-isoprostane concentrations were 2.92 and 0.700 μg/g creatinine, respectively, in our study population. Higher urinary 8-OHdG concentrations and shorter telomeres were observed in participants from the more modernized villages, whereas urinary 8-isoprostane concentrations did not differ significantly among villages. CONCLUSIONS Our findings imply that modernization-induced changes in lifestyle may increase oxidative DNA damage. Baseline levels of oxidative lipid damage are expected to be high in the indigenous populations of northern Laos. Assessments of oxidative stress may provide valuable insights into the mechanisms of health transition in specific populations.
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Affiliation(s)
- Yuki Mizuno
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yohei Inaba
- Department of Environmental Health, National Institute of Public Health, Saitama, Japan
| | - Hiroaki Masuoka
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Mihoko Kibe
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoko Kosaka
- Department of Public Health and Nursing, Nagasaki University, Nagasaki, Japan
| | | | - Kazuhiro Hirayama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Nouhak Inthavong
- Lao Tropical and Public Health Institute, Ministry of Health, Vientiane, Laos
| | | | - Shinsuke Tomita
- Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
| | - Masahiro Umezaki
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Çeli K HEA, Tuna G, Ceylan D, Küçükgöncü S. A comparative meta-analysis of peripheral 8-hydroxy-2'-deoxyguanosine (8-OHdG) or 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dG) levels across mood episodes in bipolar disorder. Psychoneuroendocrinology 2023; 151:106078. [PMID: 36931055 DOI: 10.1016/j.psyneuen.2023.106078] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/28/2023] [Accepted: 03/05/2023] [Indexed: 03/19/2023]
Abstract
OBJECTIVE Oxidative DNA damage has been associated with the pathophysiology of bipolar disorder (BD) as one of the common pathways between increased medical comorbidity and premature aging in BD. Previous evidence shows increased levels of oxidatively induced DNA damage markers, 8-hydroxy-2'-deoxyguanosine (8-OHdG) or its tautomer 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dG), in patients with BD in comparison to healthy individuals. With the current research, we aim to analyze data on peripheral (blood or urine) 8-OHdG/8-oxo-dG levels across mood states of BD using a meta-analytical approach. METHOD A literature search was conducted using the databases PubMed, Scopus, and Web of Science to identify eligible studies (January 1989 to July 2022). Relevant studies were systematically reviewed; a random-effects meta-analysis and a meta-regression analysis were conducted. RESULTS The current meta-analysis included 12 studies consisting of 808 BD patients (390 in euthymia, 156 in mania, 137 in depression, 16 in mixed episode, 109 not specified) and 563 healthy controls. BD patients that were currently depressed had significantly higher levels of 8-OHdG/8-oxo-dG than healthy controls, while euthymic or manic patients did not differ from healthy controls. A meta-regression analysis showed sex distribution (being female) and older age to be significantly related to increased 8-OHdG/8-oxo-dG levels. CONCLUSION Our findings suggest that 8-OHdG/8-oxo-dG may be a state-related marker of depression in BD and may be affected by older age and female gender.
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Affiliation(s)
- Hidayet Ece Arat Çeli K
- Maltepe University, Faculty of Medicine, Department of Psychiatry, İstanbul, Turkey; Dokuz Eylül University, Institute of Health Sciences, Department of Neuroscience, İzmir, Turkey
| | - Gamze Tuna
- Dokuz Eylül University, Institute of Health Sciences, Department of Molecular Medicine, İzmir, Turkey
| | - Deniz Ceylan
- Koç University, Faculty of Medicine, Department of Psychiatry, İstanbul, Turkey; Koç University, Research Center for Translational Medicine, İstanbul, Turkey.
| | - Suat Küçükgöncü
- Maltepe University, Faculty of Medicine, Department of Psychiatry, İstanbul, Turkey
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Koppen G, Franken C, Den Hond E, Plusquin M, Reimann B, Leermakers M, Covaci A, Nawrot T, Van Larebeke N, Schoeters G, Bruckers L, Govarts E. Pooled analysis of genotoxicity markers in relation to exposure in the Flemish Environment and Health Studies (FLEHS) between 1999 and 2018. ENVIRONMENTAL RESEARCH 2020; 190:110002. [PMID: 32745535 DOI: 10.1016/j.envres.2020.110002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/18/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The Flemish Environment and Health Studies (FLEHS) are human biomonitoring surveys running in Flanders since 1999. Additionally to biomarkers of exposure, markers of genotoxicity and oxidative stress have been measured, including the alkaline comet and micronucleus assay in peripheral whole blood cells, and urinary concentrations of 8-oxo-2'-deoxyguanosine (8-oxodG). AIM Exposure-effect associations were explored in a pooled dataset of nine different cross-sectional FLEHS surveys. Data of adolescents collected in a time frame of about 20 years (1999-2018) were compiled. The aim of the study was to examine whether increased variation in exposure, lifestyle and environmental factors would lead to more powerful and robust exposure-effect associations. MATERIALS & METHODS The biomarkers were measured in 2283 adolescents in the age range of 14-18 years. Exposure to polycyclic aromatic hydrocarbons [1-hydroxypyrene (1-OHP)], benzene (tt'-muconic acid), metals (arsenic, cadmium, copper, nickel, thallium, lead, chromium), persistent organochlorines and phthalates were assessed in blood or urine. Furthermore, outdoor air levels of particulate matter (PM10 and PM2.5) at the residences of the youngsters were calculated. Pooled statistical analysis was done using mixed models. Study-specific differences in the genotoxicity markers and in the strength/direction of the association were accounted for. This was done by incorporating the random factor 'study' and a random study slope (if possible). The exposure markers were centered around the study-specific mean in order to correct for protocol changes over time. RESULTS A significant association was observed for the urinary oxidative stress marker 8-oxodG, which was positively associated with 1-OHP (5% increase for doubling of 1-OHP levels, p = 0.001), and with urinary copper (26% increase for doubling of copper levels, p = 0.001), a metal involved in the Fenton reaction in biological systems. 8-oxodG was also associated with the sum of the metabolites of the phthalate di(2-ethylhexyl) phthalate (DEHP) (3% increase for doubling of the DEHP levels, p = 0.02). For those associations, data pooling increased the statistical power. However, some of the associations in the individual surveys, were not confirmed in the pooled analysis (such as comet assay and 8-oxodG vs. atmospheric PM; and 8-oxodG vs. urinary nickel). This may be due to inconsistencies in exposure-effect relations and/or variations in the pollutant mix over time and regions. CONCLUSION Pooled analysis including a large population of 2283 Flemish adolescents showed that 8-oxodG, a marker of oxidative DNA damage is a valuable marker to assess impact of daily life pollutants, such as PAHs, Cu and the phthalate DEHP.
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Affiliation(s)
- G Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium.
| | - C Franken
- Provincial Institute of Hygiene (PIH), Antwerp, Belgium.
| | - E Den Hond
- Provincial Institute of Hygiene (PIH), Antwerp, Belgium.
| | - M Plusquin
- Center for Environment and Health, University Hasselt, Agoralaan, Diepenbeek, Belgium.
| | - B Reimann
- Center for Environment and Health, University Hasselt, Agoralaan, Diepenbeek, Belgium.
| | - M Leermakers
- Analytical, Environmental and Geo- Chemistry, Free University Brussels, Belgium.
| | - A Covaci
- Toxicological Center, University of Antwerp, Belgium.
| | - T Nawrot
- Center for Environment and Health, University Hasselt, Agoralaan, Diepenbeek, Belgium.
| | - N Van Larebeke
- Analytical, Environmental and Geo- Chemistry, Free University Brussels, Belgium.
| | - G Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium; Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Belgium; University of Southern Denmark, Institute of Public Health/ Department of Environmental Medicine, Odense, Denmark.
| | - L Bruckers
- Center for Statistics, University Hasselt, Agoralaan, Diepenbeek, Belgium.
| | - E Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium.
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González NT, Otali E, Machanda Z, Muller MN, Wrangham R, Thompson ME. Urinary markers of oxidative stress respond to infection and late-life in wild chimpanzees. PLoS One 2020; 15:e0238066. [PMID: 32916689 PMCID: PMC7486137 DOI: 10.1371/journal.pone.0238066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress (OS) plays a marked role in aging and results from a variety of stressors, making it a powerful measure of health and a way to examine costs associated with life history investments within and across species. However, few urinary OS markers have been examined under field conditions, particularly in primates, and their utility to non-invasively monitor the costs of acute stressors versus the long-term damage associated with aging is poorly understood. In this study, we examined variation in 5 urinary markers of oxidative damage and protection under 5 validation paradigms for 37 wild, chimpanzees living in the Kibale National Park, Uganda. We used 924 urine samples to examine responses to acute immune challenge (respiratory illness or severe wounding), as well as mixed-longitudinal and intra-individual variation with age. DNA damage (8-OHdG) correlated positively with all other markers of damage (F-isoprostanes, MDA-TBARS, and neopterin) but did not correlate with protection (total antioxidant capacity). Within individuals, all markers of damage responded to at least one if not both types of acute infection. While OS is expected to increase with age, this was not generally true in chimpanzees. However, significant changes in oxidative damage were detected within past-prime individuals and those close to death. Our results indicate that OS can be measured using field-collected urine and integrates short- and long-term aspects of health. They further suggest that more data are needed from long-lived, wild animals to illuminate if common age-related increases in inflammation and OS damage are typical or recently aberrant in humans.
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Affiliation(s)
- Nicole Thompson González
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- University of New Mexico, Academic Science Education and Research Training Program, Health Sciences Center, Albuquerque, NM, United States of America
- * E-mail:
| | - Emily Otali
- Kibale Chimpanzee Project, Fort Portal, Uganda
| | - Zarin Machanda
- Kibale Chimpanzee Project, Fort Portal, Uganda
- Tufts University, Department of Anthropology, Medford, MA, United States of America
| | - Martin N. Muller
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- Kibale Chimpanzee Project, Fort Portal, Uganda
| | - Richard Wrangham
- Kibale Chimpanzee Project, Fort Portal, Uganda
- Harvard University, Department of Human Evolutionary Biology, Cambridge, MA, United States of America
| | - Melissa Emery Thompson
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- Kibale Chimpanzee Project, Fort Portal, Uganda
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Liang YD, Liu Q, Du MH, Liu Z, Yao SM, Zheng PP, Wan YH, Sun N, Li YY, Liu JP, Luo Y, Cai JP, Yang JF, Wang H. Urinary 8-oxo-7,8-dihydroguanosine as a potential biomarker of frailty for elderly patients with cardiovascular disease. Free Radic Biol Med 2020; 152:248-254. [PMID: 32217193 DOI: 10.1016/j.freeradbiomed.2020.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/09/2020] [Accepted: 03/19/2020] [Indexed: 01/03/2023]
Abstract
The diagnosis of frailty is usually subjective, which calls for objective biomarkers in clinical medicine. 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGsn) and 8-oxo-7, 8-dihydroguanosine (8-oxoGsn) in urine are two aging biomarkers that have not been explored deeply in cases of frailty. A total of 508 elderly patients with cardiovascular disease (mean age 75.0 ± 6.5 years, 50.8% males) were enrolled consecutively. Frailty was assessed by the Fried phenotype (robust: 0 score; pre-frail: 1-2 scores; frail: 3-5 scores). The concentrations of 8-oxoGsn and 8-oxodGsn in urine were measured by improved ultra-high-performance liquid chromatography-mass spectrometry (UPLC-MS/MS). Urinary creatinine (Cre) was tested to correct the 8-oxoGsn and 8-oxodGsn levels. According to the Fried phenotype score, the proportions of robust, pre-frail, and frail subjects were 20.5% (104/508), 53.9% (274/508), and 25.6% (130/508), respectively. The urinary 8-oxoGsn/Cre (P < 0.001) differed significantly among these 3 groups, but the urinary 8-oxodGsn/Cre (P = 0.600) showed no marked difference. Univariate and multivariate logistic regression showed that the age (odds ratio [OR] = 1.090, P < 0.001), systolic blood pressure (OR = 0.981, P = 0.008), 8-oxoGsn/Cre (OR = 1.203, P = 0.007), hemoglobin (OR = 0.980, P = 0.007), and sodium (OR = 0.915, P = 0.044) were independently associated with frailty. The sensitivity and specificity to identify frailty were 53.08% and 71.96%, respectively, for 8-oxoGsn/Cre at the optimal cut-off value of 3.879 μmol/mol according to the maximal Youden index. Urinary 8-oxoGsn, as a recognized biomarker of RNA oxidation, is independently associated with frailty in elderly patients with cardiovascular disease. However, the urinary 8-oxodGsn shows no obvious correlation with frailty. To obtain a better diagnostic performance for frailty, more biomarkers from different pathophysiological pathways should be explored in the future.
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Affiliation(s)
- Yao-Dan Liang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China; Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Qian Liu
- MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China; School of Pharmacy, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ming-Hui Du
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Zhen Liu
- MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Si-Min Yao
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Pei-Pei Zheng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Yu-Hao Wan
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Ning Sun
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Ying-Ying Li
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Jun-Peng Liu
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Yao Luo
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Jian-Ping Cai
- MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China.
| | - Jie-Fu Yang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China.
| | - Hua Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China.
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Inomata S, Anan A, Yamauchi E, Yamauchi R, Kunimoto H, Takata K, Tanaka T, Yokoyama K, Morihara D, Takeyama Y, Irie M, Shakado S, Sohda T, Sakisaka S. Changes in the Serum Hepcidin-to-ferritin Ratio with Erythroferrone after Hepatitis C Virus Eradication Using Direct-acting Antiviral Agents. Intern Med 2019; 58:2915-2922. [PMID: 31243222 PMCID: PMC6859405 DOI: 10.2169/internalmedicine.2909-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective Hepcidin is a master iron regulator hormone produced by the liver, but precise mechanism underlying its involvement in iron overload in hepatitis C virus (HCV) infection remains unclear. We investigated the serum hepcidin levels against iron overload before and after HCV eradication. Methods We prospectively investigated the iron metabolism characteristics in 24 patients with HCV genotype 1b infection before and after treatment. We also assessed the serum erythroferrone (ERFE) levels to investigate its association with iron metabolism changes. Patients were treated with Ledipasvir 90 mg and Sofosbuvir 400 mg once daily for 12 weeks and observed for 12 more weeks in order to evaluate their sustained virological response. Results Serum hepcidin levels at baseline were in the normal range, although serum ferritin levels were increased. After HCV eradication, both serum ferritin and hepcidin levels were significantly decreased at 24 weeks from baseline (p<0.001, p=0.006, respectively). However, the serum hepcidin-to-ferritin ratios were significantly increased (p<0.001). In addition, the serum ERFE levels were significantly decreased (p<0.001). Increases in the serum hepcidin-to-ferritin ratios were correlated with decreases in the serum ERFE levels (ρ=-0.422, p=0.039). Conclusion Serum hepcidin levels were relatively low against ferritin levels in HCV infection. However, after HCV eradication, the serum hepcidin-to-ferritin ratios were increased. These results indicate the improvement of inadequate hepcidin secretion against iron overload after HCV eradication. Downregulation of ERFE may have affected the improvement of iron metabolism.
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Affiliation(s)
- Shinjiro Inomata
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
- Meotoiwa Hospital, Japan
| | - Akira Anan
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
- Shiida Clinic, Japan
| | - Eri Yamauchi
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Ryo Yamauchi
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Hideo Kunimoto
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Kazuhide Takata
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Takashi Tanaka
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Keiji Yokoyama
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Daisuke Morihara
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Yasuaki Takeyama
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Makoto Irie
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
- Division of Gastroenterology, Fukuoka University Nishijin Hospital, Japan
| | - Satoshi Shakado
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
| | - Tetsuro Sohda
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
- Department of Hepatology, Red Cross Fukuoka Hospital, Japan
| | - Shotaro Sakisaka
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Japan
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Higher Number of Night Shifts Associates with Good Perception of Work Capacity and Optimal Lung Function but Correlates with Increased Oxidative Damage and Telomere Attrition. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8327629. [PMID: 31111068 PMCID: PMC6487156 DOI: 10.1155/2019/8327629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/16/2019] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Sleep deprivation and the consequent circadian clock disruption has become an emergent health question being associated with premature aging and earlier chronic diseases onset. Night-shift work leads to circadian clock misalignment, which is linked to several age-related diseases. However, mechanisms of this association are not well understood. Aim of this study is to explore in night-shift workers early indicators of oxidative stress response and biological aging [oxidized/methylated DNA bases and leukocytes telomere length (LTL)] and late indicators of functional aging [lung function measurements (FEV1 and FVC)] in relation to personal evaluation of work capacity, measured by work ability index (WAI). One hundred fifty-five hospital workers were studied within the framework of a cross-sectional study. We collected physiological, pathological, and occupational history including pack-years, alcohol consumption, physical activity, and night shifts, together with blood and urine samples. Relationships were appraised by univariate and multivariate ordered-logistic regression models. We found that workers with good and excellent WAI present higher FEV1 (p< 0.01) and number of night-work shifts (p<0.05), but they reveal higher urinary levels of 8-oxoGua (p<0.01) and shorter LTL (p<0.05). We confirmed that higher work ability was prevalent among chronological younger workers (p<0.05), who have also a significant reduced number of diseases, particularly chronic (p<0.01) and musculoskeletal diseases (p<0.01). The new findings which stem from our work are that subjects with the highest work ability perception may have more demanding and burdensome tasks; they in fact present the highest number of night-shift work and produce unbalanced oxidative stress response that might induce premature aging.
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KATO D, KAMATA T, KURITA R, YOSHIOKA K, SHIBA S, KURAYA E, KUNITAKE M, NIWA O. Nanocarbon Film Electrodes Can Expand the Possibility of Electroanalysis. BUNSEKI KAGAKU 2018. [DOI: 10.2116/bunsekikagaku.67.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Dai KATO
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology
| | - Tomoyuki KAMATA
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology
| | - Ryoji KURITA
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology
| | - Kyoko YOSHIOKA
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology
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Inoue-Yanagimachi M, Himori N, Sato K, Kokubun T, Asano T, Shiga Y, Tsuda S, Kunikata H, Nakazawa T. Association between mitochondrial DNA damage and ocular blood flow in patients with glaucoma. Br J Ophthalmol 2018; 103:1060-1065. [DOI: 10.1136/bjophthalmol-2018-312356] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/24/2018] [Accepted: 08/13/2018] [Indexed: 02/03/2023]
Abstract
Background/AimsWe determined the relationship between tissue mean blur rate (MT) and mitochondrial dysfunction, represented by the mitochondrial/nuclear DNA (mtDNA/nDNA) ratio. We also investigated the usefulness of these biomarkers.MethodsWe assessed ocular blood flow in 123 eyes of 123 patients with open-angle glaucoma (OAG) and 37 control eyes of 37 healthy subjects by measuring MT in the optic nerve head with laser speckle flowgraphy. We measured mtDNA and nDNA with PCR, calculated the mtDNA/nDNA ratio and compared this ratio with MT using Spearman’s rank test. We used multiple regression analysis to further investigate the association between MT and glaucoma in the most severe group.ResultsThe control and the patients with glaucoma had significant differences in the mtDNA/nDNA ratio, circumpapillary retinal nerve fibre layer thickness and MT. There was no significant relationship between the mtDNA/nDNA ratio and MT in patients with OAG overall or the female patients with OAG, but there was a significant relationship between the mtDNA/nDNA ratio and MT, temporal-MT and superior-MT in male patients with severe OAG (r=−0.46, p=0.03; r=−0.51, p=0.02; r=−0.61, p<0.01, respectively). Furthermore, we found that the mtDNA/nDNA ratio was an independent contributor to temporal-MT and superior-MT in these patients (p<0.01 and p=0.03, respectively).ConclusionWe found that there was a significant relationship between the mtDNA/nDNA ratio and MT in male patients with severe OAG, suggesting that the mtDNA/nDNA ratio may be a new biomarker in glaucoma and may help research on the vulnerability of these patients to mitochondrial dysfunction.
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Carraro E, Schilirò T, Biorci F, Romanazzi V, Degan R, Buonocore D, Verri M, Dossena M, Bonetta S, Gilli G. Physical Activity, Lifestyle Factors and Oxidative Stress in Middle Age Healthy Subjects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15061152. [PMID: 29865194 PMCID: PMC6025138 DOI: 10.3390/ijerph15061152] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 12/16/2022]
Abstract
Oxidative stress (OS) has been recognized to play a primary role in many acute and chronic diseases. Environmental and lifestyle factors, such as physical activity and dietary intake are involved in the oxidative balance, but their specific influence remains unclear. In order to contribute to a greater characterization of the oxidative status in relation to exercise training and to environmental and lifestyle factors, different biomarkers—pro-oxidant capacity (d-ROMs), anti-oxidant capacity (BAP), radical scavenging activity (DPPH) and DNA damage (8-OHdGuo)—were measured in biological samples of a group of healthy middle aged subjects. The evaluation of the investigated biomarkers highlighted a significant effect of exercise training on OS, measured as d-ROMs and 8OhdGuo, in subjects playing regular physical activity. An association of the OS status measured by DPPH and 8-OhdGuo with the condition of living in urban high traffic areas was also found. Otherwise dietary habits did not reveal any significant effect on OS levels by the investigated biomarkers. As a whole the results obtained in this investigation suggested that a correct lifestyle, with regular physical activity practice, contributes to control the OS status in middle age subjects.
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Affiliation(s)
- Elisabetta Carraro
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Tiziana Schilirò
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Felicina Biorci
- Center of Sport and Preventive Medicine, University of Torino, Piazza Bernini 12, 10143 Torino, Italy.
| | - Valeria Romanazzi
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Raffaella Degan
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Daniela Buonocore
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy.
| | - Manuela Verri
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy.
| | - Maurizia Dossena
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy.
| | - Sara Bonetta
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Giorgio Gilli
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
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11
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DNA redox modulations and global DNA methylation in bipolar disorder: Effects of sex, smoking and illness state. Psychiatry Res 2018; 261:589-596. [PMID: 29407727 DOI: 10.1016/j.psychres.2017.12.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 11/22/2017] [Accepted: 12/18/2017] [Indexed: 01/20/2023]
Abstract
DNA redox modulations and methylation have been associated with bipolar disorder (BD) pathophysiology. We aimed to investigate DNA redox modulation and global DNA methylation and demethylation levels in patients with BD during euthymia, mania or depression in comparison to non-psychiatric controls. The roles of sex and smoking as susceptibility factors for DNA redox modulations and global DNA methylation and demethylation were also explored. Levels of 5-methylcytosine (5-mC), 5-hydroxymethylcytosine (5-hmC) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) were assessed in DNA samples of 75 patients with DSM-IV BD type I (37 euthymic, 18 manic, 20 depressive) in comparison to 60 non-psychiatric controls. Levels of 5-mC and 5-hmC were assessed using Dot Blot as a screening process, and verified using ELISA. Levels of 8-OHdG were assessed using ELISA. The levels of 8-OHdG significantly differed among non-psychiatric control, euthymia, mania and depression groups [F (3,110) = 2.771, p = 0.046], whereas there were no alterations in the levels of 5-hmC and 5-mC. Linear regression analyses revealed the significant effects of smoking (p = 0.031) and sex (p = 0.012) as well as state of illness on the levels of 8-OHdG (p = 0.025) in patients with BD. Our results suggest that levels of 8-OHdG may be affected by sex, illness states and smoking in BD.
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12
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Gan W, Liu XL, Yu T, Zou YG, Li TT, Wang S, Deng J, Wang LL, Cai JP. Urinary 8-oxo-7,8-dihydroguanosine as a Potential Biomarker of Aging. Front Aging Neurosci 2018. [PMID: 29535624 PMCID: PMC5835306 DOI: 10.3389/fnagi.2018.00034] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background: A molecular biomarker of physiologic age, as opposed to chronologic age, is needed in clinical medicine. 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodGsn) and 8-oxo-7, 8-dihydroguanosine (8-oxoGsn) are two promising aging biomarkers. Methods: A total of 1,228 healthy Chinese residents (613 males and 615 females) 2–90 years of age were randomly selected. Spot urine samples were collected, and the concentrations of 8-oxodGsn and 8-oxoGsn were measured using ultra-high-performance liquid chromatography with a triple quadrupole mass spectrometer (UPLC-MS/MS). Method validation, including accuracy, precision, linearity and quantification limit, was performed. The relationship between oxidized guanosine and age/gender was evaluated. Results: 8-oxodGsn and 8-oxoGsn were eluted at 1.61 and 1.30 min, respectively. The calibration curve was linear in the range of 0.2–500 ng/ml for both analytes. The lowest limit of quantification (LLOQ) was 0.2 ng/ml for 8-oxodGsn and 0.1 ng/ml for 8-oxoGsn. There was an age-dependent increase in the biomarkers from the 21- to 30-year-old group to the 81- to 90-year-old group in both genders. In the subjects older than 61 years of age, the levels of 8-oxodGsn as well as 8-oxoGsn in urine were much higher in females than in males. The content of 8-oxoGsn correlated more closely with age and was higher (approximately 2-fold) than that of 8-oxodGsn for a given individual. Conclusions: 8-oxodGsn and 8-oxoGsn can be easily measured by UPLC-MS/MS. Urinary 8-oxoGsn may be a potential biomarker to determine a person's physiologic age and identify individuals at high risk of developing age-associated disease.
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Affiliation(s)
- Wei Gan
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China.,The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Xin-Le Liu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Yu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan-Gao Zou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ting-Ting Li
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Shuang Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Deng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lan-Lan Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jian-Ping Cai
- The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China
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13
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Jorgensen JM, Yang Z, Lönnerdal B, Chantry CJ, Dewey KG. Effect of iron supplementation during lactation on maternal iron status and oxidative stress: A randomized controlled trial. MATERNAL & CHILD NUTRITION 2017; 13:e12394. [PMID: 27896921 PMCID: PMC6866113 DOI: 10.1111/mcn.12394] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 09/14/2016] [Accepted: 09/19/2016] [Indexed: 01/08/2023]
Abstract
We examined the effect of iron-containing prenatal vitamin-mineral supplements taken postpartum on biomarkers of iron status and oxidative stress. Lactating women (n = 114) were randomly assigned to consume daily one iron-free prenatal vitamin-mineral supplement plus either 27 mg of iron or placebo for approximately 3.5 months. The placebo group took the tablets between meals, while those given iron took the tablets either with (Fe-W) or between meals (Fe-B). Blood and urine samples were collected before and after the supplementation period to analyze hemoglobin (Hb), ferritin, hepcidin, transferrin saturation (TfSat), total plasma iron, and biomarkers of oxidative stress (isoprostane and 8-hydroxy-2-deoxyguanosine (8-OHdG)) and inflammation (C-reactive protein (CRP) and alpha-1-acid glycoprotein (AGP)). There was a trend toward a greater change in Hb among women in the Fe-B group compared to placebo (+2.5 vs. -3.7 g/L, respectively, p = 0.063). When the iron groups were combined, there was a greater change in Hb (+1.4 g/L) compared to placebo (p = 0.010). There were trends toward greater changes in TfSat (p = 0.087) and total plasma iron (p = 0.065) in the iron groups compared to placebo, yet no significant differences between the three groups in change in hepcidin (p = 0.291), isoprostane (p = 0.319), or 8-OHdG (p = 0.659), nor in change in ferritin among those with elevated CRP at baseline (60% of women; p = 0.946); among those without elevated CRP (40% of women), ferritin increased more in the iron groups compared to placebo (p = 0.001). Iron consumption during lactation moderately increased iron status, particularly among women without elevated CRP, and increased Hb, but did not significantly increase oxidative stress.
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Affiliation(s)
| | - Zhenyu Yang
- National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijingChina
- Key Laboratory of Trace Element NutritionMinistry of Health of ChinaBeijingChina
| | - Bo Lönnerdal
- Department of NutritionUC DavisDavisCaliforniaUSA
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14
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Hou J, Yang Y, Huang X, Song Y, Sun H, Wang J, Hou F, Liu C, Chen W, Yuan J. Aging with higher fractional exhaled nitric oxide levels are associated with increased urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine concentrations in elder females. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:23815-23824. [PMID: 27628697 DOI: 10.1007/s11356-016-7491-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
Indoor air pollutants from environmental tobacco smoke and cooking fume can induce oxidative stress and inflammatory response, which generate oxidatively damaged DNA in human body. Among 2224 adults, levels of FENO and urinary 8-oxodG were measured using a nano coulomb nitric oxide analyzer and a high performance liquid chromatography system with electrochemical detector, respectively. Association between aging with higher FENO levels and urinary 8-oxodG levels were analyzed using multiple linear regression analysis. Nonsmoking women aged 64 years and over, with higher FENO (≥ 25 part per billion) and self-catering but without passive smoking had a higher risk of increased urinary 8-oxodG (△% of urinary 8-oxodG: 81.3 %, 95 % CI: 27.4-158.0 %) levels, particularly these elderly women with using liquefied petroleum gas for cooking, had a higher risk for increased urinary 8-oxodG levels (△% of urinary 8-oxodG: 100.2 %, 95 % CI: 95 % CI: 35.3-196.3 %), compared with those aged less than 64 years, with lower FENO (< 25 part per billion). Cooking activity aggravated aging-related the aging-induced in urinary 8-oxodG excretion among nonsmoking women aged 64 years and over but without passive smoking.
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Affiliation(s)
- Jian Hou
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Yuqing Yang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Xiji Huang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Yuanchao Song
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Huizhen Sun
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Jianshu Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Fan Hou
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Chuanyao Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China
| | - Weihong Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China.
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China.
| | - Jing Yuan
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China.
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, 430030, Hubei, People's Republic of China.
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15
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Aranda N, Fernandez-Cao JC, Tous M, Arija V. Increased iron levels and lipid peroxidation in a Mediterranean population of Spain. Eur J Clin Invest 2016; 46:520-6. [PMID: 26999720 DOI: 10.1111/eci.12625] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 03/16/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Many chronic diseases are adversely affected by elevated iron levels. It has been speculated that this relationship is mediated by increased oxidative stress, due to the ability of iron to generate reactive oxygen species. The aim of this study was to assess the relationship between elevated iron levels and lipid peroxidation in Caucasian adults residing in the north-eastern Mediterranean region of Spain. MATERIALS AND METHODS This cross-sectional case-control study included 300 subjects: 150 adults displaying elevated iron levels (cases) selected from a representative sample of our general population and 150 age- and sex-matched adults exhibiting normal iron levels (controls). Dietary assessment (3-day food records), iron biomarkers (serum iron, ferritin and transferrin saturation) and lipid profile were determined. Elevated iron levels were defined by high serum ferritin (SF>110 μg/L in women and>200 μg/L in men) and/or transferrin saturation (TS)>45%. Oxidized low-density lipoprotein (oxLDL) plasma levels were measured, and oxLDL/LDL-cholesterol ratio was calculated to estimate lipid peroxidation. Multiple linear regression (MLR) models were applied. RESULTS Individuals with elevated serum iron levels showed increased oxLDL/LDL ratio, but not oxLDL levels, compared to control subjects (20·92 ± 4·89 U/mmol vs. 19·72 ± 3·573 U/mmol, P = 0·028). These results were further confirmed by the regression models adjusted for demographic characteristics, diet, lipid profile and inflammation. Importantly, higher serum levels of triglycerides, LDL-cholesterol and lower intake of Vitamin E increased lipid peroxidation. CONCLUSIONS In our general population, we have observed that higher circulating levels of iron, measured by serum ferritin and/or TS, increased lipid peroxidation (measured by oxLDL/LDL ratio).
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Affiliation(s)
- Nuria Aranda
- Faculty of Medicine and Health Sciences, Nutrition and Public Health Unit, Research Group in Nutrition and Mental Health (NUTRISAM), Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Jose Candido Fernandez-Cao
- Faculty of Medicine and Health Sciences, Nutrition and Public Health Unit, Research Group in Nutrition and Mental Health (NUTRISAM), Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Monica Tous
- Faculty of Medicine and Health Sciences, Nutrition and Public Health Unit, Research Group in Nutrition and Mental Health (NUTRISAM), Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Victoria Arija
- Faculty of Medicine and Health Sciences, Nutrition and Public Health Unit, Research Group in Nutrition and Mental Health (NUTRISAM), Institut d'Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain.,Unitat de Suport a la Recerca Tarragona-Reus, Institut Universitari d'Investigació en Atenció Primària Jordi Gol, Tarragona, Spain
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16
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Ikeda Y, Imao M, Satoh A, Watanabe H, Hamano H, Horinouchi Y, Izawa-Ishizawa Y, Kihira Y, Miyamoto L, Ishizawa K, Tsuchiya K, Tamaki T. Iron-induced skeletal muscle atrophy involves an Akt-forkhead box O3-E3 ubiquitin ligase-dependent pathway. J Trace Elem Med Biol 2016; 35:66-76. [PMID: 27049128 DOI: 10.1016/j.jtemb.2016.01.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/02/2016] [Accepted: 01/22/2016] [Indexed: 12/21/2022]
Abstract
Skeletal muscle wasting or sarcopenia is a critical health problem. Skeletal muscle atrophy is induced by an excess of iron, which is an essential trace metal for all living organisms. Excessive amounts of iron catalyze the formation of highly toxic hydroxyl radicals via the Fenton reaction. However, the molecular mechanism of iron-induced skeletal muscle atrophy has remained unclear. In this study, 8-weeks-old C57BL6/J mice were divided into 2 groups: vehicle-treated group and the iron-injected group (10 mg iron day(-1)mouse(-1)) during 2 weeks. Mice in the iron-injected group showed an increase in the iron content of the skeletal muscle and serum and ferritin levels in the muscle, along with reduced skeletal muscle mass. The skeletal muscle showed elevated mRNA expression of the muscle atrophy-related E3 ubiquitin ligases, atrogin-1 and muscle ring finger-1(MuRF1), on days 7 and 14 of iron treatment. Moreover, iron-treated mice showed reduced phosphorylation of Akt and forkhead box O3 (FOXO3a) in skeletal muscles. Inhibition of FOXO3a using siRNA in vitro in C2C12 myotube cells inhibited iron-induced upregulation of atrogin-1 and MuRF1 and reversed the reduction in myotube diameters. Iron-load caused oxidative stress, and an oxidative stress inhibitor abrogated iron-induced muscle atrophy by reactivating the Akt-FOXO3a pathway. Iron-induced skeletal muscle atrophy is suggested to involve the E3 ubiquitin ligase mediated by the reduction of Akt-FOXO3a signaling by oxidative stress.
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Affiliation(s)
- Yasumasa Ikeda
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Mizuki Imao
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akiho Satoh
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroaki Watanabe
- Department of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirofumi Hamano
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Yuya Horinouchi
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Yuki Izawa-Ishizawa
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yoshitaka Kihira
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Licht Miyamoto
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Koichiro Tsuchiya
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshiaki Tamaki
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Topic A, Malic Z, Francuski D, Stankovic M, Markovic B, Soskic B, Tomic B, Ilic S, Dobrivojevic S, Drca S, Radojkovic D. Gender-related differences in susceptibility to oxidative stress in healthy middle-aged Serbian adults. Biomarkers 2016; 21:186-93. [PMID: 26754535 DOI: 10.3109/1354750x.2015.1126647] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Gender-related differences in the association between polymorphism of xenobiotic-metabolising enzymes or non-genetic biomarkers and susceptibility to oxidative stress was assessed in healthy middle-aged Serbian adults, by urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG/creatinine) and total antioxidant status in serum (TAOS). Females were more susceptible to oxidative stress. In both genders, positive predictor of the antioxidative protection was serum triglyceride, while BMI <25 kg/m(2) was associated with oxidative stress. Susceptibility to oxidative stress in males was associated with GSTT1*null allele and increased serum iron, but in females, it was decreased serum bilirubin. Early identification of the risk factors could be important in the prevention of oxidative stress-related diseases.
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Affiliation(s)
- Aleksandra Topic
- a Department of Medical Biochemistry , Faculty of Pharmacy, University of Belgrade , Belgrade , Serbia
| | - Zivka Malic
- b Faculty of Pharmacy , University of Bijeljina , Bijeljina , Bosnia & Herzegovina
| | - Djordje Francuski
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
| | - Marija Stankovic
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
| | - Bojan Markovic
- d Department of Pharmaceutical Chemistry , Faculty of Pharmacy, University of Belgrade , Belgrade , Serbia
| | - Blagoje Soskic
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
| | - Branko Tomic
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
| | - Stefan Ilic
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
| | - Snezana Dobrivojevic
- e Clinical Chemical Laboratory, Health Centre , "Stari Grad", Belgrade , Serbia , and
| | - Sanja Drca
- f Clinical Chemical Laboratory, General Hospital , Pancevo , Serbia
| | - Dragica Radojkovic
- c Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Belgrade , Serbia
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18
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Abstract
Meat is a food rich in protein, minerals such as iron and zinc as well as a variety of vitamins, in particular B vitamins. However, the content of cholesterol and saturated fat is higher than in some other food groups. Processed meat is defined as products usually made of red meat that are cured, salted or smoked (e.g. ham or bacon) in order to improve the durability of the food and/or to improve colour and taste, and often contain a high amount of minced fatty tissue (e.g. sausages). Hence, high consumption of processed foods may lead to an increased intake of saturated fats, cholesterol, salt, nitrite, haem iron, polycyclic aromatic hydrocarbons, and, depending upon the chosen food preparation method, also heterocyclic amines. Several large cohort studies have shown that a high consumption of processed (red) meat is related to increased overall and cause-specific mortality. A meta-analysis of nine cohort studies observed a higher mortality among high consumers of processed red meat (relative risk (RR) = 1·23; 95 % CI 1·17, 1·28, top v. bottom consumption category), but not unprocessed red meat (RR = 1·10; 95 % CI 0·98, 1·22). Similar associations were reported in a second meta-analysis. All studies argue that plausible mechanisms are available linking processed meat consumption and risk of chronic diseases such as CVD, diabetes mellitus or some types of cancer. However, the results of meta-analyses do show some degree of heterogeneity between studies, and it has to be taken into account that individuals with low red or processed meat consumption tend to have a healthier lifestyle in general. Hence, substantial residual confounding cannot be excluded. Information from other types of studies in man is needed to support a causal role of processed meat in the aetiology of chronic diseases, e.g. studies using the Mendelian randomisation approach.
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19
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Kortas J, Prusik K, Flis D, Prusik K, Ziemann E, Leaver N, Antosiewicz J. Effect of Nordic Walking training on iron metabolism in elderly women. Clin Interv Aging 2015; 10:1889-96. [PMID: 26664101 PMCID: PMC4669095 DOI: 10.2147/cia.s90413] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Despite several, well-documented pro-healthy effects of regular physical training, its influence on body iron stores in elderly people remains unknown. At the same time, body iron accumulation is associated with high risk of different morbidities. PURPOSE We hypothesized that Nordic Walking training would result in pro-healthy changes in an elderly group of subjects by reducing body iron stores via shifts in iron metabolism-regulating proteins. METHODS Thirty-seven women aged 67.7±5.3 years participated in this study. They underwent 32 weeks of training, 1-hour sessions three times a week, between October 2012 and May 2013. Fitness level, blood morphology, CRP, vitamin D, ferritin, hepcidin, and soluble Hjv were assessed before and after the training. RESULTS The training program caused a significant decrease in ferritin, which serves as a good marker of body iron stores. Simultaneously, the physical cardiorespiratory fitness had improved. Furthermore, blood hepcidin was positively correlated with the ferritin concentration after the training. The concentration of blood CRP dropped, but the change was nonsignificant. The applied training resulted in a blood Hjv increase, which was inversely correlated with the vitamin D concentration. CONCLUSION Overall the Nordic Walking training applied in elderly people significantly reduced blood ferritin concentration, which explains the observed decrease in body iron stores.
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Affiliation(s)
- Jakub Kortas
- Department of Recreation and Tourism, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Katarzyna Prusik
- Department of Biomedical Basis of Health, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Damian Flis
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdansk, Gdansk, Poland
| | - Krzysztof Prusik
- Department of Recreation and Tourism, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Ewa Ziemann
- Department of Physiology and Pharmacology, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Neil Leaver
- The Immunosuppression monitoring service (IMS) Laboratory, Royal Brompton & Harefield NHS Foundation Trust, Heart Science Centre, Harefield Hospital, Harefield, UK
| | - Jedrzej Antosiewicz
- Department of Biochemistry, Gdansk University of Physical Education and Sport, Gdansk, Poland
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Wakiya T, Sanada Y, Urahashi T, Ihara Y, Yamada N, Okada N, Hirata Y, Hakamada K, Yasuda Y, Mizuta K. Impact of the serum ferritin concentration in liver transplantation. Liver Transpl 2015. [PMID: 26224663 DOI: 10.1002/lt.24222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The serum ferritin (SF) concentration is a widely available and objective laboratory parameter. SF is also widely recognized as an acute-phase reactant. The purpose of the present study was to identify the chronological changes in the recipient's SF concentration during liver transplantation (LT) and to clarify factors having an effect on the recipient's intraoperative SF level. In addition, the study retrospectively evaluated the usefulness of measuring SF during LT. Ninety-eight pediatric recipients were retrospectively analyzed. The data were analyzed and compared according to the SF level in the recipient. Patients were classified into 2 groups based on the intraoperative peak SF levels of ≤ 1000 ng/mL (low-SF group) or >1000 ng/mL (high-SF group). The SF value increased dramatically after reperfusion and fell to normal levels within the early postoperative period. The warm ischemia time (WIT) was significantly longer in the high-SF group (47.0 versus 58.5 minutes; P = 0.003). In addition, a significant positive correlation was observed between the peak SF value and WIT (r = 0.35; P < 0.001). There were significant positive correlations between the peak SF value and the donors' preoperative laboratory data, including transaminases, cholinesterase, hemoglobin, transferrin saturation, and SF, of which SF showed the strongest positive correlation (r = 0.74; P < 0.001). The multivariate analysis revealed that WIT and donor's SF level were a significant risk factor for high SF level in the recipient (P = 0.007 and 0.02, respectively). In conclusion, the SF measurement can suggest the degree of ischemia/reperfusion injury (IRI). A high SF level in the donor is associated with the risk of further acute reactions, such as IRI, in the recipient.
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Affiliation(s)
- Taiichi Wakiya
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan.,Department of Gastroenterological Surgery, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Yukihiro Sanada
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Taizen Urahashi
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Yoshiyuki Ihara
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Naoya Yamada
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Noriki Okada
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Yuta Hirata
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Kenichi Hakamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Yoshikazu Yasuda
- Department of Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Koichi Mizuta
- Departments of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
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Richardson AC, Heath ALM, Haszard JJ, Polak MA, Houghton LA, Conner TS. Higher Body Iron Is Associated with Greater Depression Symptoms among Young Adult Men but not Women: Observational Data from the Daily Life Study. Nutrients 2015. [PMID: 26213963 PMCID: PMC4555109 DOI: 10.3390/nu7085270] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Studies investigating possible associations between iron status and mood or depressive symptoms have reported inconsistent results. However, they have neither used body iron to measure iron status nor measured mood using daily measures. We investigated whether body iron was associated with depressive symptoms, daily mood, daily tiredness, difficulty concentrating, and stress in young adult women and men. Young adult (17–25 years) women (n = 562) and men (n = 323) completed the Center for Epidemiologic Studies Depression Scale, then reported negative and positive mood, and other states daily for 13 days. Non-fasting venous blood was collected to determine hemoglobin, serum ferritin and soluble transferrin receptor (to calculate body iron), C-reactive protein, and alpha-1-acid glycoprotein concentration. Regression models tested linear associations between body iron and the outcome variables, controlling for possible confounders. No associations were found between body iron and the outcome variables in women. However, higher body iron was associated with more depressive symptoms in men (3.4% more per body iron mg/kg; 95% confidence intervals (CI): 0.8%, 5.9%). In young adult women, body iron is unlikely to be associated with significant deficits in mood or depressive symptoms. However, higher body iron may be associated with more depressive symptoms in young adult men.
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Affiliation(s)
- Aimee C Richardson
- Department of Psychology, University of Otago, Dunedin 9054, New Zealand.
| | - Anne-Louise M Heath
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
| | - Jillian J Haszard
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
| | - Maria A Polak
- Department of Psychology, University of Otago, Dunedin 9054, New Zealand.
| | - Lisa A Houghton
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
| | - Tamlin S Conner
- Department of Psychology, University of Otago, Dunedin 9054, New Zealand.
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Measurement of a Urinary Marker (8-hydroxydeoxyGuanosine, 8-OHdG) of DNA Oxidative Stress in Epidemiological Surveys: A Pilot Study. Int J Biol Markers 2015; 30:e341-5. [DOI: 10.5301/jbm.5000129] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2014] [Indexed: 11/20/2022]
Abstract
Background 8-Hydroxydeoxyguanosine (8-OHdG) is a commonly used marker of DNA oxidative stress in epidemiological studies. The aim of this study was to establish whether the urinary concentration of 8-OHdG varies during the first part of the day, when clinical tests are usually performed, and whether it can therefore be measured without bias in spot urine samples. Material and methods Spot urine samples were collected using a convenience sample. A linear mixed-effects model for repeated measurements was used to analyze 8-OHdG levels. Results A significant increasing trend in time in the 8-OHdG concentration was found among smokers, but not in the case of nonsmokers. Conclusions In epidemiological studies on oxidative stress, all participants should collect their early morning urine specimens – before their first cigarette if they are smokers – to gather information on individual background oxidation levels.
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Kell DB, Pretorius E. Serum ferritin is an important inflammatory disease marker, as it is mainly a leakage product from damaged cells. Metallomics 2014; 6:748-73. [PMID: 24549403 DOI: 10.1039/c3mt00347g] [Citation(s) in RCA: 368] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
"Serum ferritin" presents a paradox, as the iron storage protein ferritin is not synthesised in serum yet is to be found there. Serum ferritin is also a well known inflammatory marker, but it is unclear whether serum ferritin reflects or causes inflammation, or whether it is involved in an inflammatory cycle. We argue here that serum ferritin arises from damaged cells, and is thus a marker of cellular damage. The protein in serum ferritin is considered benign, but it has lost (i.e. dumped) most of its normal complement of iron which when unliganded is highly toxic. The facts that serum ferritin levels can correlate with both disease and with body iron stores are thus expected on simple chemical kinetic grounds. Serum ferritin levels also correlate with other phenotypic readouts such as erythrocyte morphology. Overall, this systems approach serves to explain a number of apparent paradoxes of serum ferritin, including (i) why it correlates with biomarkers of cell damage, (ii) why it correlates with biomarkers of hydroxyl radical formation (and oxidative stress) and (iii) therefore why it correlates with the presence and/or severity of numerous diseases. This leads to suggestions for how one might exploit the corollaries of the recognition that serum ferritin levels mainly represent a consequence of cell stress and damage.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and The Manchester Institute of Biotechnology, The University of Manchester, 131, Princess St, Manchester M1 7DN, Lancs, UK.
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Zhuang T, Han H, Yang Z. Iron, oxidative stress and gestational diabetes. Nutrients 2014; 6:3968-80. [PMID: 25255832 PMCID: PMC4179198 DOI: 10.3390/nu6093968] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 08/27/2014] [Accepted: 09/09/2014] [Indexed: 01/01/2023] Open
Abstract
Both iron deficiency and hyperglycemia are highly prevalent globally for pregnant women. Iron supplementation is recommended during pregnancy to control iron deficiency. The purposes of the review are to assess the oxidative effects of iron supplementation and the potential relationship between iron nutrition and gestational diabetes. High doses of iron (~relative to 60 mg or more daily for adult humans) can induce lipid peroxidation in vitro and in animal studies. Pharmaceutical doses of iron supplements (e.g., 10× RDA or more for oral supplements or direct iron supplementation via injection or addition to the cell culture medium) for a short or long duration will induce DNA damage. Higher heme-iron intake or iron status measured by various biomarkers, especially serum ferritin, might contribute to greater risk of gestational diabetes, which may be mediated by iron oxidative stress though lipid oxidation and/or DNA damage. However, information is lacking about the effect of low dose iron supplementation (≤60 mg daily) on lipid peroxidation, DNA damage and gestational diabetes. Randomized trials of low-dose iron supplementation (≤60 mg daily) for pregnant women are warranted to test the relationship between iron oxidative stress and insulin resistance/gestational diabetes, especially for iron-replete women.
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Affiliation(s)
- Taifeng Zhuang
- Department of Neonatal Intensive Care Unit (NICU), Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China.
| | - Huijun Han
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China.
| | - Zhenyu Yang
- Key Laboratory of Trace Element Nutrition of the Ministry of Health, National Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, No. 27 Nanwei Road, Xicheng District, Beijing 100050, China.
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Iwanaga S, Sakano N, Taketa K, Takahashi N, Wang DH, Takahashi H, Kubo M, Miyatake N, Ogino K. Comparison of serum ferritin and oxidative stress biomarkers between Japanese workers with and without metabolic syndrome. Obes Res Clin Pract 2014; 8:e201-98. [DOI: 10.1016/j.orcp.2013.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Revised: 12/10/2012] [Accepted: 01/09/2013] [Indexed: 10/27/2022]
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Murase T, Kitamura H, Kochi T, Terunuma N, Kurosaki S, Hata K, Yanagi N, Uchino B, Kitahara K, Morimoto Y, Kasai H, Sasaki T, Ogami A, Higashi T. Distributions and ranges of values of blood and urinary biomarker of inflammation and oxidative stress in the workers engaged in office machine manufactures: evaluation of reference values. Clin Chem Lab Med 2014; 51:421-8. [PMID: 23096020 DOI: 10.1515/cclm-2012-0330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 06/14/2012] [Indexed: 11/15/2022]
Abstract
BACKGROUND Interleukins, interferons and oxidative DNA products are important biomarkers assessing the inflammations and tissue damages caused by toxic materials in the body. We tried to evaluate distributions, reference values and age related changes of blood levels of inflammatory cytokines, C-reactive protein (CRP), IgE and urine levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG) among workers in a cohort study evaluating the health influences of toner particles. METHODS A total of 1366 male workers under age 50 years (age 19-49 years; 718 exposed and 648 not exposed to toner particles) in a cross sectional study of 1614 (categorized as 809 exposed and 805 not exposed, age 19-59 years) workers in a photocopier company has been followed prospectively as the cohort. Blood levels of interleukin (IL)-4, IL-6, IL-8, interferon-γ (IFN-γ), CRP, IgE and urine 8-OHdG were measured annually for 5 years. RESULTS Reference values of the biomarkers are; CRP: 0.01-0.63×10(-2) g/L, IgE: 6-1480 IU/mL, IL-4: 2.6-76.1 pg/mL, IL-6: 0.4-4.9 pg/mL and 8-OHdG: 1.5-8.2 ng/mgCr. We could not evaluate reference values for IL-8 and IFN- γ because most of the values were below the sensitivity limits (2.0 pg/mL and 0.1 IU/mL, respectively). There were no differences of the biomarker levels between the toner exposed and the control workers. We observed a statistically significant age related decrease of serum IL-4 levels. CONCLUSIONS This is the first report assessing the distributions and reference values of inflammatory biomarker levels in a large scaled cohort. We observed age related changes of some of the biomarkers. We could not detect any differences of the studied biomarker values between the toner exposed and the control workers.
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Affiliation(s)
- Tadashi Murase
- Department of Hematology and Oncology, Tokai University Hachioji Hospital, Tokai University School of Medicine, 192-0032, Tokyo, Japan.
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Kodani N, Saisho Y, Tanaka K, Kawai T, Itoh H. Effects of mitiglinide, a short-acting insulin secretagogue, on daily glycemic variability and oxidative stress markers in Japanese patients with type 2 diabetes mellitus. Clin Drug Investig 2014; 33:563-70. [PMID: 23797928 DOI: 10.1007/s40261-013-0098-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE The objective of this study was to clarify the effects of mitiglinide on daily glycemic variability and oxidative stress markers in outpatients with type 2 diabetes mellitus that is insufficiently controlled by diet and/or non-insulin secretagogues. METHODS We enrolled 24 patients with type 2 diabetes whose glycemic control had been suboptimal [i.e. glycosylated hemoglobin (HbA(1c)) ≥ 6.9 %]. The patients were treated with mitiglinide 10 mg three times daily for 16 weeks. If their glycemic control was not improved at week 8, the dose of mitiglinide was increased to 20 mg three times daily. Daily glycemic variability was assessed by 7-point self-monitoring of blood glucose for 2 days, and standard deviation (SD), M value, and mean of daily differences(MODD) were calculated. Oxidative stress was assessed by oxidized low-density lipoprotein, pentosidine,urinary 8-iso-prostaglandin F2 alpha, and urinary 8-hydroxydeoxy guanosine. RESULTS After 16 weeks of mitiglinide treatment, the HbA(1c) level was significantly decreased (mean ± SD,7.4 ± 0.7 to 6.8 ± 0.5 %, P < 0.0001). Postprandial glucose excursion and glycemic variability were also significantly improved after mitiglinide treatment (all P < 0.05). The reductions in SD, M value, and MODD were 17, 50,and 48 %, respectively. There was a significant positive correlation between the change in HbA(1c) and change in SD during the study (r = 0.454, P = 0.03). There were no significant changes in oxidative stress markers. CONCLUSIONS The present study supports the notion that mitiglinide improves postprandial glucose excursion and HbA(1c) level in patients with type 2 diabetes. In addition,we demonstrated that mitiglinide also effectively improves daily glycemic variability. The effect of mitiglinide on oxidative stress needs further investigation.
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Affiliation(s)
- Noriko Kodani
- Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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Commodore AA, Zhang J(J, Chang Y, Hartinger SM, Lanata CF, Mäusezahl D, Gil AI, Hall DB, Aguilar-Villalobos M, Vena JE, Wang JS, Naeher LP. Concentrations of urinary 8-hydroxy-2'-deoxyguanosine and 8-isoprostane in women exposed to woodsmoke in a cookstove intervention study in San Marcos, Peru. ENVIRONMENT INTERNATIONAL 2013; 60:112-22. [PMID: 24041735 PMCID: PMC3863787 DOI: 10.1016/j.envint.2013.08.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 08/16/2013] [Accepted: 08/18/2013] [Indexed: 05/21/2023]
Abstract
Nearly half of the world's population is exposed to household air pollution (HAP) due to long hours spent in close proximity to unvented cooking fires. The effect of woodsmoke exposure on oxidative stress was examined by investigating the association between woodsmoke exposure and biomarkers of DNA oxidation (8-hydroxy-2'-deoxyguanosine [8-OHdG]) and lipid peroxidation (8-isoprostane) among control and intervention stove users. HAP exposure assessment was conducted within the framework of a community-randomized controlled trial of 51 communities in San Marcos Province, Cajamarca Region, Peru. The first morning urine voids after 48h HAP exposure assessment from a subset of 45 control and 39 intervention stove users were analyzed for 8-OHdG and 8-isoprostane. General linear models and correlation analyses were performed. Urinary oxidative stress biomarkers ranged from 11.2 to 2270.0μg/g creatinine (median: 132.6μg/g creatinine) for 8-OHdG and from 0.1 to 4.5μg/g creatinine (median: 0.8μg/g creatinine) for 8-isoprostane among all study subjects (n=84). After controlling for the effects of traffic in the community and eating food exposed to fire among all subjects, cooking time was weakly, but positively associated with urinary 8-OHdG (r=0.29, p=0.01, n=80). Subjects' real-time personal CO exposures were negatively associated with 8-OHdG, particularly the maximum 30-second CO exposure during the sampling period (r=-0.32, p=0.001, n=73). 48h time integrated personal PM2.5 was negatively, but marginally associated with urinary 8-isoprostane (r=-0.21, p=0.09, n=69) after controlling for the effect of distance of homes to the road. Urinary 8-isoprostane levels reported in the available literature are comparable to results found in the current study. However there were relatively high levels of urinary 8-OHdG compared to data in the available literature for 8-OHdG excretion. Results suggest a sustained systemic oxidative stress among these Peruvian women chronically exposed to wood smoke.
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Affiliation(s)
- Adwoa A. Commodore
- Environmental Health Science Department, College of Public Health, University of Georgia Athens, GA USA
| | - Junfeng (Jim) Zhang
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Yan Chang
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Stella M. Hartinger
- Instituto de Investigación Nutricional, Lima, Peru
- Swiss Tropical and Public Health Institute, Basel, Switzerland and University of Basel, Basel, Switzerland
- Universidad Peruana Cayetano Heredia, Lima, Peru
| | | | - Daniel Mäusezahl
- Swiss Tropical and Public Health Institute, Basel, Switzerland and University of Basel, Basel, Switzerland
| | - Ana I. Gil
- Instituto de Investigación Nutricional, Lima, Peru
| | - Daniel B. Hall
- Department of Statistics, University of Georgia, Athens, GA USA
| | | | - John E. Vena
- Epidemiology and Biostatistics Department, College of Public Health, University of Georgia Athens, GA USA
| | - Jia-Sheng Wang
- Environmental Health Science Department, College of Public Health, University of Georgia Athens, GA USA
| | - Luke P. Naeher
- Environmental Health Science Department, College of Public Health, University of Georgia Athens, GA USA
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Cadmium, mercury, and lead in kidney cortex are not associated with urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in living kidney donors. Int Arch Occup Environ Health 2013; 87:315-22. [PMID: 23536210 DOI: 10.1007/s00420-013-0863-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 02/21/2013] [Indexed: 12/26/2022]
Abstract
PURPOSE Cadmium in urine is positively associated with urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) concentrations, a sensitive marker of oxidative DNA damage. We determined whether kidney concentrations of cadmium, mercury, and lead, which may generate oxidative DNA damage, were associated with urinary 8-oxodG or not. METHODS 8-OxodG was measured in separate 24 h and overnight urine samples from Swedish healthy adult kidney donors (N = 152) using LC-MS/MS. Concentrations of metals were measured in kidney biopsies (N = 109) by ICP-MS. RESULTS The median 8-oxodG concentrations (adjusted to specific gravity) in 24 h and overnight samples were 13.5 and 15.3 nmol/L; 8-oxodG excretion rates in 24 h and overnight samples were 0.93 and 0.86 nmol/h. In multivariable linear regression analyses, we did not find any association between 8-oxodG concentrations or rates and elements in the kidney. The 24-h 8-oxodG concentrations were positively associated with serum ferritin (β = 0.048, p < 0.0001), body weight (β = 0.13, p = 0.0019), and inversely with gender (β = -3.34, p = 0.0024). Similar associations with 8-oxodG excretion rates were stronger. Smoking was positively associated with 24-h 8-oxodG excretion rates (β = 0.26, p = 0.0090), but not with overnight samples. CONCLUSIONS Neither cadmium, nor mercury or lead in the kidney contributed to urinary 8-oxodG concentrations in non-occupationally exposed subjects. The iron status was positively associated with urinary 8-oxodG, particularly in women.
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Inoue K, Sakano N, Ogino K, Sato Y, Wang DH, Kubo M, Takahashi H, Kanbara S, Miyatake N. Relationship between ceruloplasmin and oxidative biomarkers including ferritin among healthy Japanese. J Clin Biochem Nutr 2013; 52:160-6. [PMID: 23524455 PMCID: PMC3593134 DOI: 10.3164/jcbn.12-122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 12/10/2012] [Indexed: 12/11/2022] Open
Abstract
Serum ceruloplasmin (CP), a marker relevant to copper metabolism, is one of famous inflammation markers with a reduction in Wilson’s disease, whereas serum ferritin is a marker relevant to iron metabolism. Recently, ferritin is pointed out to be related with oxidative stress. However, there is still no population research which showed the relation of CP and ferritin. Therefore, we investigated the relationship between CP and ferritin including oxidative stress biomarkers among healthy Japanese (n = 389). We measured serum CP, ferritin, Fe, high-sensitivity C-reactive protein (hs-CRP), and urinary oxidative stress biomarkers [H2O2, 8-hydroxy-2’-deoxyguanosine (8-OHdG), 8-isoprostane] and so on. Subjects showed that age; 41.7 ± 10.0 (year), CP; 31.9 ± 6.8 (mg/dl), ferritin; 123.5 ± 121.0 (ng/ml), hs-CRP; 0.89 ± 2.53 (mg/l), 8-OHdG; 10.2 ± 4.4 [ng/mg creatinine (Cre)] and H2O2; 6.5 ± 10.9 (µM/g Cre), (All data mentioned above were expressed as mean ± SD). CP was significantly and positively correlated with hs-CRP and inversely correlated with ferritin, Fe and 8-OHdG. By a multiple logistic regression analysis, odds ratio of CP according to quartiles of hs-CRP was 4.86, and according to quartiles of 8-OHdG was 0.39 after adjusting for age and other confounding factors. In conclusion, our findings suggest that CP was an antioxidative biomarker which controls oxidative stress, whereas ferritin was a marker which may participate in the generation of oxidative stress.
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Affiliation(s)
- Kiyomi Inoue
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata-cho, Okayama 700-8558, Japan
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Saito K, Aoki H, Fujiwara N, Goto M, Tomiyama C, Iwasa Y. Association of urinary 8-OHdG with lifestyle and body composition in elderly natural disaster victims living in emergency temporary housing. Environ Health Prev Med 2013; 18:72-7. [PMID: 22623222 PMCID: PMC3541811 DOI: 10.1007/s12199-012-0284-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 04/23/2012] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES Residents who lost land and houses due to disasterous heavy rainfall-related events on July 13, 2004 and the Chuetsu Earthquake on October 23, 2004 were moved to emergency temporary housing. The change in life style due to living under such conditions is assumed to increase oxidative stress level. In this study, we investigated the oxidative stress level in elderly residents of emergency temporary housing, and analyzed its association with lifestyle and body composition following these disasters. METHODS A noninvasive oxidative stress marker, urinary 8-hydroxydeoxyguanosine (8-OHdG), and body composition were measured in 73 elderly residents of emergency temporary housing. RESULTS In the elderly female residents, the urinary 8-OHdG level tended to decrease with time after the disasters. 8-OHdG levels were slightly higher in females than males and significantly higher among those who exercised regularly compared to those who did not, particularly in females. A weak correlation was noted between the urinary 8-OHdG level and muscle ratio in females. CONCLUSIONS The in vivo oxidative stress level in our study cohort of elderly residents of emergency temporary housing changed following the change in life style, but remained within the normal range. The increase in oxidative stress levels of elderly females was related to menopause. A decrease in estrogen levels due to menopause inhibits its antioxidant effects, which increases 8-OHdG levels. Although it is difficult to determine, a decrease in daily stressors over time following the disaster could be a cause of the decrease in oxidative stress levels. We suggest that the close evaluation of the stress level of disaster victims is desirable, in combination with evidence of antioxidative substances and the psychosocial influence of suffering as a consequence of the disaster.
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Affiliation(s)
- Kimie Saito
- School of Health Sciences, Faculty of Medicine, Niigata University, 2-746 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8518, Japan.
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Kim YK, Lee DH, Jin SH, Lee WG, Song KE. [Relationships among Oxidative Stress Markers, Life Style Factors and Biochemical Findings.]. Korean J Lab Med 2012; 26:343-50. [PMID: 18156749 DOI: 10.3343/kjlm.2006.26.5.343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In many studies, oxidative stress markers have been employed to serve as a measure of a disease process or to reflect oxidative status. These oxidative stress markers must have some degree of predictive validity, but full substantiation of this relation is still lacking. This paper presents data on levels of three biomarkers, oxidized low-density lipoproteins (LDL), carbonyl, and 8-hydroxy-2'-deoxyguanosine (8-OHdG), and a number of life style factors associated with oxidative stress in healthy adults. METHODS For 237 healthy adults aged 40-60 years, a number of life style factors, biochemical characteristics and oxidative status were evaluated. Markers of oxidative stress were measured by an ELISA method. RESULTS Waist-hip ratio and use of vitamin supplement were associated with serum oxidized LDL (P<0.05). Body mass index and stress had a relationship (P<0.05) with protein carbonyl. Creactive protein was related to serum oxidized LDL (P<0.01). There was no correlation among three oxidative stress markers, oxidized LDL, carbonyl, and 8-OHdG. CONCLUSIONS The oxidative stress markers used in this study could not be regarded as a general estimate of the healthy individual oxidative status. Further studies focusing on the development of biomarkers to reflect changes in the oxidative status under normal, non-pathological conditions in humans will be required.
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Affiliation(s)
- Yu Kyung Kim
- Department of Clinical Pathology, School of Medicine, Kyungpook National University, Daegu, Korea.
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Prá D, Franke SIR, Henriques JAP, Fenech M. Iron and genome stability: an update. Mutat Res 2012; 733:92-9. [PMID: 22349350 DOI: 10.1016/j.mrfmmm.2012.02.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 02/02/2012] [Accepted: 02/05/2012] [Indexed: 01/07/2023]
Abstract
Iron is an essential micronutrient which is required in a relatively narrow range for maintaining metabolic homeostasis and genome stability. Iron participates in oxygen transport and mitochondrial respiration as well as in antioxidant and nucleic acid metabolism. Iron deficiency impairs these biological pathways, leading to oxidative stress and possibly carcinogenesis. Iron overload has been linked to genome instability as well as to cancer risk increase, as seen in hereditary hemochromatosis. Iron is an extremely reactive transition metal that can interact with hydrogen peroxide to generate hydroxyl radicals that form the 8-hydroxy-guanine adduct, cause point mutations as well as DNA single and double strand breaks. Iron overload also induces DNA hypermethylation and can reduce telomere length. The current Recommended Dietary Allowances (RDA) for iron, according with Institute of Medicine Dietary Reference Intake (DRI), is based in the concept of preventing anemia, and ranges from 7mg/day to 18mg/day depending on life stage and gender. Pregnant women need 27mg/day. The maximum safety level for iron intake, the Upper Level (UL), is 40-45mg/day, based on the prevention of gastrointestinal distress associated to high iron intakes. Preliminary evidence indicates that 20mg/day iron, an intake slightly higher than the RDA, may reduce the risk of gastrointestinal cancer in the elderly as well as increasing genome stability in lymphocytes of children and adolescents. Current dietary recommendations do not consider the concept of genome stability which is of concern because damage to the genome has been linked to the origin and progression of many diseases and is the most fundamental pathology. Given the importance of iron for homeostasis and its potential influence over genome stability and cancer it is recommended to conduct further studies that conclusively define these relationships.
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Affiliation(s)
- Daniel Prá
- PPG em Promoção da Saúde, Universidade de Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil. daniel
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Minimizing the cancer-promotional activity of cox-2 as a central strategy in cancer prevention. Med Hypotheses 2012; 78:45-57. [DOI: 10.1016/j.mehy.2011.09.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 09/19/2011] [Indexed: 02/06/2023]
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Chronic occupational exposure to hexavalent chromium causes DNA damage in electroplating workers. BMC Public Health 2011; 11:224. [PMID: 21481275 PMCID: PMC3094242 DOI: 10.1186/1471-2458-11-224] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Accepted: 04/12/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Occupational exposure to chromium compounds may result in adverse health effects. This study aims to investigate whether low-level hexavalent chromium (Cr(VI)) exposure can cause DNA damage in electroplating workers. METHODS 157 electroplating workers and 93 control subjects with no history of occupational exposure to chromium were recruited in Hangzhou, China. Chromium levels in erythrocytes were determined by graphite furnace atomic absorption spectrophotometer. DNA damage in peripheral lymphocytes was evaluated with the alkaline comet assay by three parameters: Olive tail moment, tail length and percent of DNA in the comet tail (tail DNA%). Urinary 8-OHdG levels were measured by ELISA. RESULTS Chromium concentration in erythrocytes was about two times higher in electroplating workers (median: 4.41 μg/L) than that in control subjects (1.54 μg/L, P < 0.001). The medians (range) of Olive tail moment, tail length and tail DNA% in exposed workers were 1.13 (0.14-6.77), 11.17 (3.46-52.19) and 3.69 (0.65-16.20), and were significantly higher than those in control subjects (0.14 (0.01-0.39), 3.26 (3.00-4.00) and 0.69 (0.04-2.74), P < 0.001). Urinary 8-OHdG concentration was 13.65 (3.08-66.30) μg/g creatinine in exposed workers and 8.31 (2.94-30.83) μg/g creatinine in control subjects (P < 0.001). The differences of urinary 8-OHdG levels, Olive tail moment, tail length and tail DNA% between these two groups remained significant (P < 0.001) even after stratification by potential confounding factors such as age, gender, and smoking status. Chromium exposure was found to be positively associated with chromium levels in erythrocytes, urinary 8-OHdG levels, Olive tail moment, tail length and tail DNA%. Positive dose-response associations were also found between chromium levels in erythrocytes and Olive tail moment, tail length and tail DNA%. CONCLUSION The findings in this study indicated that there was detectable chromium exposure in electroplating workers. Low-level occupational chromium exposure induced DNA damage.
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Broedbaek K, Siersma V, Andersen JT, Petersen M, Afzal S, Hjelvang B, Weimann A, Semba RD, Ferrucci L, Poulsen HE. The association between low-grade inflammation, iron status and nucleic acid oxidation in the elderly. Free Radic Res 2011; 45:409-16. [PMID: 21275071 DOI: 10.3109/10715762.2010.538391] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This study applied a case-control approach to investigate the association between low-grade inflammation, defined by high values within the normal range of C-reactive protein (CRP) and interleukin-6 (IL-6), and urinary markers of nucleic acid oxidation. No differences in excretion of urinary markers of nucleic acid oxidation between cases and controls were found and multivariable linear regression analysis showed no association between urinary markers of nucleic acid oxidation and inflammatory markers. Post-hoc multivariable linear regression analysis showed significant associations between nucleic acid oxidation and various iron status markers and especially a close relationship between nucleic acid oxidation and ferritin. This study shows no association between low-grade inflammation and urinary markers of nucleic acid oxidation in a population of elderly Italian people. The results suggest that low-grade inflammation only has a negligible impact on whole body nucleic acid oxidation, whereas iron status seems to be of great importance.
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Affiliation(s)
- Kasper Broedbaek
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark.
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Andreoli R, Mutti A, Goldoni M, Manini P, Apostoli P, De Palma G. Reference ranges of urinary biomarkers of oxidized guanine in (2'-deoxy)ribonucleotides and nucleic acids. Free Radic Biol Med 2011; 50:254-61. [PMID: 21075202 DOI: 10.1016/j.freeradbiomed.2010.11.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 11/03/2010] [Accepted: 11/05/2010] [Indexed: 02/03/2023]
Abstract
This study was aimed at defining the reference ranges for biomarkers of oxidized guanine in (2'-deoxy)ribonucleotides and nucleic acids from a large Italian sample. We recruited 300 healthy subjects (150 males; mean age 44.1±13.6years; 26% smokers) without any known exposure to occupational oxidizing agents. They were asked to provide a spot urine sample, on which the following markers were determined by liquid chromatography-tandem mass spectrometry: 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGuo), 8-oxo-7,8-dihydroguanosine (8-oxoGuo), 8-oxo-7,8-dihydroguanine (8-oxoGua), and cotinine. The reference ranges, estimated as the 5th-95th percentiles of creatinine-normalized values (pmol/μmol(creat)) were 0.7-4.2, 0.9-4.7, and 5.6-120.7 for 8-oxodGuo, 8-oxoGuo, and 8-oxoGua, respectively. Oxidation biomarkers were correlated with one another (p<0.005) and with urinary creatinine (p<0.0001). Males excreted significantly higher concentrations of 8-oxoGua than females (p<0.0001). 8-OxoGua and 8-oxoGuo showed a positive association with age (p<0.001), also after stratification by gender. Multiple linear regression models including urinary creatinine concentration, age, and smoking habit as independent variables showed a significant effect of age, but not of smoking, on the levels of 8-oxoGuo in males (p<0.0001) and of both 8-oxoGuo and 8-oxoGua in females (p<0.0001). A preliminary assessment in a small group (n=25) of patients affected by advanced non-small-cell lung cancer and receiving platinum-based chemotherapy showed significantly higher values of both 8-oxoGuo and 8-oxodGuo (p<0.0001 for both) compared to the referent population.
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Affiliation(s)
- Roberta Andreoli
- Laboratory of Industrial Toxicology, Department of Clinical Medicine, Nephrology, and Health Sciences, ISPESL-National Institute for Occupational Safety and Prevention, Research Center, University of Parma, Parma, Italy
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KATO D, KOMORIYA M, NAKAMOTO K, KURITA R, HIRONO S, NIWA O. Electrochemical Determination of Oxidative Damaged DNA with High Sensitivity and Stability Using a Nanocarbon Film. ANAL SCI 2011; 27:703. [DOI: 10.2116/analsci.27.703] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Dai KATO
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | | | - Ryoji KURITA
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Osamu NIWA
- National Institute of Advanced Industrial Science and Technology (AIST)
- University of Tsukuba
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Kell DB. Towards a unifying, systems biology understanding of large-scale cellular death and destruction caused by poorly liganded iron: Parkinson's, Huntington's, Alzheimer's, prions, bactericides, chemical toxicology and others as examples. Arch Toxicol 2010; 84:825-89. [PMID: 20967426 PMCID: PMC2988997 DOI: 10.1007/s00204-010-0577-x] [Citation(s) in RCA: 286] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 07/14/2010] [Indexed: 12/11/2022]
Abstract
Exposure to a variety of toxins and/or infectious agents leads to disease, degeneration and death, often characterised by circumstances in which cells or tissues do not merely die and cease to function but may be more or less entirely obliterated. It is then legitimate to ask the question as to whether, despite the many kinds of agent involved, there may be at least some unifying mechanisms of such cell death and destruction. I summarise the evidence that in a great many cases, one underlying mechanism, providing major stresses of this type, entails continuing and autocatalytic production (based on positive feedback mechanisms) of hydroxyl radicals via Fenton chemistry involving poorly liganded iron, leading to cell death via apoptosis (probably including via pathways induced by changes in the NF-κB system). While every pathway is in some sense connected to every other one, I highlight the literature evidence suggesting that the degenerative effects of many diseases and toxicological insults converge on iron dysregulation. This highlights specifically the role of iron metabolism, and the detailed speciation of iron, in chemical and other toxicology, and has significant implications for the use of iron chelating substances (probably in partnership with appropriate anti-oxidants) as nutritional or therapeutic agents in inhibiting both the progression of these mainly degenerative diseases and the sequelae of both chronic and acute toxin exposure. The complexity of biochemical networks, especially those involving autocatalytic behaviour and positive feedbacks, means that multiple interventions (e.g. of iron chelators plus antioxidants) are likely to prove most effective. A variety of systems biology approaches, that I summarise, can predict both the mechanisms involved in these cell death pathways and the optimal sites of action for nutritional or pharmacological interventions.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and the Manchester Interdisciplinary Biocentre, The University of Manchester, Manchester M1 7DN, UK.
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Wakabayashi Y, Usui Y, Shibauchi Y, Uchino H, Goto H. Increased levels of 8-hydroxydeoxyguanosine in the vitreous of patients with diabetic retinopathy. Diabetes Res Clin Pract 2010; 89:e59-61. [PMID: 20591522 DOI: 10.1016/j.diabres.2010.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 05/27/2010] [Indexed: 10/19/2022]
Abstract
We determined the intravitreous level of 8-hydroxydeoxyguanosine (8-OHdG) in diabetic retinopathy (DR) and analyzed the relation between oxidative stress and DR. Vitreous 8-OHdG concentration increased significantly in 18 patients (20 eyes) with DR compared with controls with macular disease. This result suggests that increased oxidative stress is involved in DR.
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Affiliation(s)
- Yoshihiro Wakabayashi
- Department of Ophthalmology, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
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Determination of human serum 8-hydroxy-2′-deoxyguanosine (8-OHdG) by HPLC-ECD combined with solid phase extraction (SPE). J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2163-7. [DOI: 10.1016/j.jchromb.2010.06.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Revised: 06/14/2010] [Accepted: 06/14/2010] [Indexed: 11/18/2022]
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Hori A, Mizoue T, Kasai H, Kawai K, Matsushita Y, Nanri A, Sato M, Ohta M. Body iron store as a predictor of oxidative DNA damage in healthy men and women. Cancer Sci 2010; 101:517-22. [PMID: 19895603 PMCID: PMC11158582 DOI: 10.1111/j.1349-7006.2009.01394.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
While iron plays an important role in many cellular functions, excess iron storage induces DNA damage by generating hydroxyl radicals and thus promotes carcinogenesis. However, it remains unclear whether body iron levels that are commonly observed in a general population are related to oxidative DNA damage. We examined the association between serum ferritin concentrations and levels of urinary 8-hydroxydeoxyguanosine (8-OHdG), a biomarker of systemic oxidative DNA damage and repair, in 528 Japanese men and women aged 21-67 years. Men had much higher ferritin levels than in women, and the levels were significantly greater in women aged 50 years or older than in women aged less than 50 years. Urinary 8-OHdG concentrations were significantly and positively associated with serum ferritin levels in all the subgroups. The Spearman rank correlation coefficients were 0.47, 0.76, and 0.73 for men overall, women aged less than 50 years, and women aged 50 years or older, respectively. These associations were materially unchanged after adjustment for potential confounding variables. In men, a more pronounced association was observed in nonsmokers than in smokers. Our results suggest body iron storage is a strong determinant of levels of systemic oxidative DNA damage in a healthy population.
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Affiliation(s)
- Ai Hori
- Department of Epidemiology and International Health, Research Institute, International Medical Center of Japan, Tokyo, Japan
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Lee KF, Chung WY, Benzie IFF. Urine 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), a specific marker of oxidative stress, using direct, isocratic LC-MS/MS: Method evaluation and application in study of biological variation in healthy adults. Clin Chim Acta 2009; 411:416-22. [PMID: 20035732 DOI: 10.1016/j.cca.2009.12.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Revised: 12/09/2009] [Accepted: 12/16/2009] [Indexed: 11/20/2022]
Abstract
BACKGROUND Urine 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) is a specific biomarker of oxidative stress. We evaluated a modified LC-MS/MS assay for urine 8-oxodG and determined biological variation in healthy adults. METHOD Untreated urine was injected into an isocratic LC-MS/MS system (positive-ion MRM mode). Urine 8-oxodG in 51 healthy volunteers was measured; within- and between-day variations in 23 healthy volunteers were investigated. RESULTS Dose-response was linear to 452 nmol/l; limit of detection=2.3 nmol/l; within-run and between-run CVs were <3.0% and <4.7%, respectively; recovery=97%-101%; accuracy=97.7-103.5%. Urine 8-oxodG (median, mean [SD]): 1.70, 1.70[0.60]nmol/mmol creatinine (n=51). Men had higher (p=0.027) concentrations than women matched for age and body mass index: mean [SD]: 1.90[1.60]; n=26 vs. 1.50[0.55]; n=25. Within- and between-day variations were wide but random. No significant differences were seen overall across time-points within 1 day or at the same time-point across 5 consecutive days. CONCLUSIONS The method has advantages of speed and relative simplicity as it does not require sample pre-treatment for 8-oxodG extraction, the use of internal standard or gradient LC elution and has high linearity, specificity, precision and recovery. Biological variation in urine 8-oxodG is wide, but no within- or between-day differences at the group concentration were seen in healthy adults.
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Affiliation(s)
- Kam-fai Lee
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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Pepe H, Balci ŞS, Revan S, Akalin PP, Kurtoğlu F. Comparison of oxidative stress and antioxidant capacity before and after running exercises in both sexes. ACTA ACUST UNITED AC 2009; 6:587-95. [DOI: 10.1016/j.genm.2009.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2009] [Indexed: 01/30/2023]
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Jian J, Pelle E, Huang X. Iron and menopause: does increased iron affect the health of postmenopausal women? Antioxid Redox Signal 2009; 11:2939-43. [PMID: 19527179 PMCID: PMC2821138 DOI: 10.1089/ars.2009.2576] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Estrogen deficiency has been regarded as the main causative factor in menopausal symptoms and diseases. Here, we show that although estrogen decreases by 90%, a concurrent but inverse change occurs in iron levels during menopausal transition. For example, levels of serum ferritin are increased by two- to threefold from before menopause to after menopause. This observation has led us to hypothesize that, in addition to estrogen deficiency, increased iron as a result of menopause could be a risk factor affecting the health of postmenopausal women. Further studies on iron and menopause are clinically relevant and may provide novel therapeutic treatments.
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Affiliation(s)
- Jinlong Jian
- Department of Environmental Medicine, NYU School of Medicine, New York
- New York University (NYU) Cancer Institute, NYU School of Medicine, New York
| | - Edward Pelle
- Department of Environmental Medicine, NYU School of Medicine, New York
- Estée Lauder Research Laboratories, Melville, New York
| | - Xi Huang
- Department of Environmental Medicine, NYU School of Medicine, New York
- New York University (NYU) Cancer Institute, NYU School of Medicine, New York
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Doulias PT, Vlachou C, Boudouri C, Kanavaros P, Siamopoulos KC, Galaris D. Flow cytometric estimation of ‘labile iron pool’ in human white blood cells reveals a positive association with ageing. Free Radic Res 2009; 42:253-9. [DOI: 10.1080/10715760801911649] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Tuomainen TP, Loft S, Nyyssönen K, Punnonen K, Salonen JT, Poulsen HE. Body iron is a contributor to oxidative damage of DNA. Free Radic Res 2009; 41:324-8. [PMID: 17364961 DOI: 10.1080/10715760601091642] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The transition metal iron is catalytically highly active in vitro, and not surprisingly, body iron has been suggested to promote oxidative stress in vivo. In the current analysis we studied the association of serum ferritin concentration and serum soluble transferrin receptor concentration with daily urinary 8-hydroxydeoxyguanosine excretion, a marker of oxidative stress, in 48 mildly dyslipidemic men in East Finland. In multivariate linear regression analyses allowing for age, smoking, body mass index and physical exercise, serum ferritin concentration predicted the excretion rate at B = 0.17 (95% CI 0.08-0.26, P = 0.001), and serum soluble transferrin receptor to ferritin concentration ratio (TfR/ferritin) predicted the excretion rate at B = - 0.13 (95% CI - 0.21 to - 0.05, P = 0.002). Our data suggest that body iron contributes to excess oxidative stress already at non-iron overload concentrations in these subjects.
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Affiliation(s)
- Tomi-Pekka Tuomainen
- Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, Finland
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Kukulj S, Jaganjac M, Boranic M, Krizanac S, Santic Z, Poljak-Blazi M. Altered iron metabolism, inflammation, transferrin receptors, and ferritin expression in non-small-cell lung cancer. Med Oncol 2009; 27:268-77. [PMID: 19308738 DOI: 10.1007/s12032-009-9203-2] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Accepted: 03/10/2009] [Indexed: 02/06/2023]
Abstract
The involvement of iron and inflammation parameters on overall survival in non-small-cell lung cancer (NSCLC) patients was studied. Furthermore, transferrin receptors 1 (TfR1) and ferritin expression in tumor tissue, tumor stroma, and normal lung tissue were analyzed. Iron metabolism and inflammation parameters were determined by automated laboratory measurements at the time of diagnosis. TfR1 and ferritin expression were determined by immuno-histochemical methods. About 50% of patients survived 12 months only. At the time of diagnosis more than half of the patients had anemia and significantly elevated serum ferritin. Iron content of serum ferritin (ICF) was below the reference values in 90% of patients. Furthermore, ICF showed positive correlation with iron metabolic parameters and survival but negative correlation with serum ferritin and ESR. The expression of TfR1 and ferritin in tumor cells was observed in 88% or 62% of patients, respectively. Tumor stroma was TfR1 negative and sporadically ferritin positive. Tumor tissue ferritin expression showed negative correlation with serum iron and hematokrit (Ht), and positive correlation with ferritin, erythrocyte sedimentation rate (ESR), alpha-1 globulin, and alpha-2 globulin. Positive correlation was found between TfR1 expression in tumor tissue and alpha-globulin. The correlation between TfR1/ferritin expression in tumor tissue and ICF or survival was not observed. Therefore, we conclude that elevated serum ferritin in sera of NSCLC patients is the result of inflammation and oxidative stress rather than body iron overload. Higher expression of ferritin in tumor tissue may be the consequence of iron deficiency or local toxicity induced by environmental factors.
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Affiliation(s)
- Suzana Kukulj
- University Hospital for Lung Diseases Jordanovac, 10000 Zagreb, Croatia
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Sakano N, Wang DH, Takahashi N, Wang B, Sauriasari R, Kanbara S, Sato Y, Takigawa T, Takaki J, Ogino K. Oxidative stress biomarkers and lifestyles in Japanese healthy people. J Clin Biochem Nutr 2009; 44:185-95. [PMID: 19308273 PMCID: PMC2654475 DOI: 10.3164/jcbn.08-252] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Accepted: 11/14/2008] [Indexed: 11/22/2022] Open
Abstract
The urinary concentrations of 8-isoprostane and 8-hydroxy-2’-deoxyguanosine (8-OHdG), which are biomarkers of oxidative stress, were measured in 677 Japanese people without any diseases, and their correlations with lifestyle facotrs, lifestyle-related blood biochemical parameters, and dietary intake of antioxidative vitamins were investigated. The mean urinary concentration of 8-isoprostane and 8-OHdG was 0.58 ng/mg creatinine and 8.43 ng/mg creatinine, respectively. Mean urinary 8-isoprostane was significantly different in terms of age, gender, smoking and alcohol consumption but not different in terms of body mass index (BMI) and exercise. By multiple regression analysis, urinary 8-isoprostane was significantly influenced by smoking and age. On the other hand, mean urinary 8-OHdG showed differences only by age group. Multiple regression analysis revealed that urinary 8-OHdG was significantly influenced by age, smoking, body weight, levels of high-sensitivity C-reactive protein (Hs-CRP) and low density lipoprotein-cholesterol in females, although it was significantly influenced by body weight in males. The present study shows that urinary 8-isoprostane is associated with lipid peroxidation related-lifestyles such as smoking, and urinary 8-OHdG is associated with arteriosclerosis related-factors such as Hs-CRP. Our findings suggest that 8-isoprostane and 8-OHdG appear to be prospective biomarkers for early prediction of lifestyle related-disease risk at the population level.
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Affiliation(s)
- Noriko Sakano
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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