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Jeong MS, Park S, Han EJ, Park SY, Kim MJ, Jung K, Cho SH, Kim SY, Yoon WJ, Ahn G, Kim KN. Pinus thunbergii PARL leaf protects against alcohol-induced liver disease by enhancing antioxidant defense mechanism in BALB/c mice. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Nagao M, Kobashi G, Umesawa M, Cui R, Yamagishi K, Imano H, Okada T, Kiyama M, Kitamura A, Sairenchi T, Haruyama Y, Ohira T, Iso H. Urinary 8-Hydroxy-2'-Deoxyguanosine Levels and Cardiovascular Disease Incidence in Japan. J Atheroscler Thromb 2020; 27:1086-1096. [PMID: 32161250 PMCID: PMC7585906 DOI: 10.5551/jat.51664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Aim: The association between urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG), an oxidative stress marker, and the incidence of cardiovascular disease (CVD) has not been confirmed because no previous studies evaluated 24-hour 8-OHdG excretion levels in the general population. We aimed to confirm the association between 24-hour urinary 8-OHdG levels and CVD risk among Japanese men and women. Methods: A nested case-control study was performed based on a 24-hour urine collection in a community-based cohort study performed from 1996 to 2005. Seventy-six cases (55 men and 21 women) who experienced their first CVD incidence during the follow-up period (median: 5.9 years) were recruited. The controls were frequency-matched 1:2, with each case for sex, age, area of residence, and baseline year. The 8-OHdG level was measured by enzyme-linked immunosorbent assay. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using conditional logistic regression models adjusted for body mass index, ethanol intake, smoking status, and estimated glomerular filtration rate. Results: The geometric mean and geometric standard deviation (SD) of 8-OHdG levels (nmol/day) for cases and controls were 35.5 (1.55) and 35.5 (1.54) for men and 32.1 (1.35) and 25.0 (1.39) for women, respectively. The multivariable OR (95% CI) of CVD incidence according to the 1-SD increment of the log-transformed 8-OHdG level was 2.08 (0.99–4.37) for women. The multivariable ORs (95% CIs) for the 1st (lowest) and 4th versus 2nd quartile according to 8-OHdG for men were 3.29 (1.02–10.61) and 2.77 (0.96–7.96), respectively. Conclusion: A high 8-OHdG level tended to be associated with CVD incidence among women.
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Affiliation(s)
- Masanori Nagao
- Department of Public Health, School of Medicine, Dokkyo Medical University.,Office of Epidemiology, Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University.,Department of Epidemiology, School of Medicine, Fukushima Medical University
| | - Gen Kobashi
- Department of Public Health, School of Medicine, Dokkyo Medical University
| | - Mitsumasa Umesawa
- Department of Public Health, School of Medicine, Dokkyo Medical University
| | - Renzhe Cui
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
| | - Kazumasa Yamagishi
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba.,Ibaraki Western Medical Center
| | - Hironori Imano
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
| | - Takeo Okada
- Osaka Center for Cancer and Cardiovascular Diseases Prevention
| | - Masahiko Kiyama
- Osaka Center for Cancer and Cardiovascular Diseases Prevention
| | | | - Toshimi Sairenchi
- Department of Public Health, School of Medicine, Dokkyo Medical University
| | - Yasuo Haruyama
- Department of Public Health, School of Medicine, Dokkyo Medical University
| | - Tetsuya Ohira
- Office of Epidemiology, Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University.,Department of Epidemiology, School of Medicine, Fukushima Medical University
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
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Justice M, Ferrugia A, Beidler J, Penprase JC, Cintora P, Erwin D, Medrano O, Brasser SM, Hong MY. Effects of Moderate Ethanol Consumption on Lipid Metabolism and Inflammation Through Regulation of Gene Expression in Rats. Alcohol Alcohol 2019; 54:5-12. [PMID: 30423027 DOI: 10.1093/alcalc/agy079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 10/22/2018] [Indexed: 12/12/2022] Open
Abstract
Aims Epidemiological studies and experimental data from rodent models have reported a non-linear relationship between consumption of alcohol and cardiovascular disease (CVD) risk that suggests that light-to-moderate drinking as opposed to excessive consumption may provide some cardiovascular benefits. The present study examined potential mechanisms by which moderate alcohol consumption may provide a protective effect against CVD. Short summary Wistar rats exposed for 3 months to a 20% ethanol intermittent-access voluntary drinking paradigm displayed a reduction in epididymal fat, blood glucose and non-HDL and total cholesterol. These effects were accompanied by decreased expression of Hmgcr, Srebp-2, Cox-2 and RelA, indicating downregulation of genes involved in cholesterol synthesis and inflammation. Methods Twenty-four male Wistar rats voluntarily consumed a 20% v/v ethanol solution on alternate days for 13 weeks (ethanol-treated) or were given access to water alone (non-ethanol-exposed control). Results There was no difference in body weight gain between the two groups, however, epididymal fat weight was lower in ethanol-fed rats (P = 0.030). Blood glucose, total cholesterol, non-high-density lipoprotein (HDL) and oxidized low-density lipoprotein (LDL) levels were lower in the ethanol group compared to controls (P < 0.05). There was a significant reduction in the expression of hydroxymethylglutaryl-coenzyme A reductase and sterol regulatory element-binding protein-2 in ethanol-treated rats (P < 0.05), suggesting that ethanol may have lowered cholesterol levels via downregulation of genes involved in cholesterol synthesis. Paraoxonase-1, which is associated with inhibition of LDL cholesterol oxidation, was upregulated in the ethanol group (P = 0.029). Ethanol-treated rats exhibited significantly lower levels of high-mobility box group protein 1 (P ≤ 0.05). Cyclooxygenase-2 and RelA gene expression were significantly lower in ethanol-treated rats (P < 0.05), indicating possible anti-inflammatory effects. Conclusions These findings suggest that moderate ethanol consumption may potentially contribute to improved cardiovascular outcomes by reducing body fat, improving blood cholesterol and blood glucose, and modulation of gene expression involved in inflammation and/or cholesterol synthesis.
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Affiliation(s)
- Meegan Justice
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, USA
| | - Autumn Ferrugia
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, USA
| | - Joshua Beidler
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, USA
| | - Jerrold C Penprase
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Patricia Cintora
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Danielle Erwin
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Octavio Medrano
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Susan M Brasser
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Mee Young Hong
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, USA
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Stein CS, de Carvalho JAM, Duarte MMMF, da Cruz IBM, Premaor MO, Comim FV, Moretto MB, Moresco RN. High serum uric acid is associated with oxidation of nucleosides in patients with type 2 diabetes. Mutat Res 2018; 811:27-30. [PMID: 30292071 DOI: 10.1016/j.mrfmmm.2018.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/30/2018] [Accepted: 09/16/2018] [Indexed: 02/07/2023]
Abstract
Uric acid presents different roles in an organism, since it can act as an antioxidant or a pro-oxidant molecule. High serum uric acid levels may cause damage to several structures, including nucleic acids and its components. Therefore, in this study the association between increased serum uric acid concentrations and oxidation of nucleosides was investigated by assessment of urinary 8-hydroxydeoxyguanosine (8-OHdG) in patients with type 2 diabetes (T2D) and in healthy individuals. Urinary 8-OHdG and biochemical parameters were assessed in 61 patients who were initially grouped into 2 groups based on the median serum uric acid levels (<5.3 mg/dL and ≥5.3 mg/dL). Urinary 8-OHdG was higher in patients with T2D and serum uric acid levels ≥5.3 mg/dL, when compared with the patients with serum uric acid levels <5.3 mg/dL; however, co-occurrence of high serum uric acid with high urinary 8-OHdG was not observed in healthy individuals. A significant positive correlation between 8-OHdG and uric acid (r = 0.40, P < 0.01) was observed in patients with T2D. High serum uric acid levels were associated with high urinary 8-OHdG levels in patients with T2D, and this association was independent of gender, hypertension, body mass index, and serum creatinine.
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Affiliation(s)
- Carolina S Stein
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria, Santa Maria, RS, Brazil; Pharmaceutical Sciences Postgraduate Program, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - José A M de Carvalho
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria, Santa Maria, RS, Brazil; University Hospital, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Marta M M F Duarte
- Department of Health Sciences, Lutheran University of Brazil, Santa Maria, RS, Brazil
| | - Ivana B M da Cruz
- Biogenomic Laboratory, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Melissa O Premaor
- Department of Clinical Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Fabio V Comim
- Department of Clinical Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Maria B Moretto
- Pharmaceutical Sciences Postgraduate Program, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Rafael N Moresco
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Federal University of Santa Maria, Santa Maria, RS, Brazil; Pharmaceutical Sciences Postgraduate Program, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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Klarich DS, Penprase J, Cintora P, Medrano O, Erwin D, Brasser SM, Hong MY. Effects of moderate alcohol consumption on gene expression related to colonic inflammation and antioxidant enzymes in rats. Alcohol 2017; 61:25-31. [PMID: 28599714 DOI: 10.1016/j.alcohol.2017.02.179] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 02/11/2017] [Accepted: 02/14/2017] [Indexed: 01/21/2023]
Abstract
Excessive alcohol consumption is a risk factor associated with colorectal cancer; however, some studies have reported that moderate alcohol consumption may not contribute additional risk for developing colorectal cancer while others suggest that moderate alcohol consumption provides a protective effect that reduces colorectal cancer risk. The purpose of this study was to determine the effects of moderate voluntary alcohol (20% ethanol) intake on alternate days for 3 months in outbred Wistar rats on risk factors associated with colorectal cancer development. Colonic gene expression of cyclooxygenase-2, RelA, 8-oxoguanine DNA glycosylase 1, superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase M1, and aldehyde dehydrogenase 2 were determined. Blood alcohol content, liver function enzyme activities, and 8-oxo-deoxyguanosine DNA adducts were also assessed. Alcohol-treated rats were found to have significantly lower 8-oxo-deoxyguanosine levels in blood, a marker of DNA damage. Alanine aminotransferase and lactate dehydrogenase were both significantly lower in the alcohol group. Moderate alcohol significantly decreased cyclooxygenase-2 gene expression, an inflammatory marker associated with colorectal cancer risk. The alcohol group had significantly increased glutathione-S-transferase M1 expression, an antioxidant enzyme that helps detoxify carcinogens, such as acetaldehyde, and significantly increased aldehyde dehydrogenase 2 expression, which allows for greater acetaldehyde clearance. Increased expression of glutathione-S-transferase M1 and aldehyde dehydrogenase 2 likely contributed to reduce mucosal damage that is caused by acetaldehyde accumulation. These results indicate that moderate alcohol may reduce the risk for colorectal cancer development, which was evidenced by reduced inflammation activity and lower DNA damage after alcohol exposure.
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Álvarez-Avellón SM, Fernández-Somoano A, Navarrete-Muñoz EM, Vioque J, Tardón A. Effect of alcohol and its metabolites in lung cancer: CAPUA study. Med Clin (Barc) 2017; 148:531-538. [PMID: 28236470 DOI: 10.1016/j.medcli.2016.12.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/05/2016] [Accepted: 12/14/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Alcohol and its metabolites play an important role in carcinogenesis. This effect could be modulated by polymorphisms in genes encoding enzymes involved in the metabolism of alcohol and folate. Therefore, we analyzed the effect of alcohol consumption and ADH1B Arg48His, ADH1B Arg370Cys, ADH1C Ile349Val, ALDH2 Glu540Lys, CYP2E1 RsaI, CYP2E1 DraI, CYP2E1 TaqI and MTHFR C677T polymorphisms on the risk of developing lung cancer. PATIENTS AND METHODS We included 876 lung cancer cases and 840 controls of the CAPUA hospital-based case-control study. Genotyping was performed using the Sequenom MassArray (iPLEX GOLD) technology. RESULTS An alcohol consumption of 0.1-9.9g/day decreased lung cancer risk (ORadjusted=0.71; 95% CI 0.48-1.05), although statistical significance was not achieved. A consumption≥30g/day of alcohol and≥36PY of tobacco increases lung cancer risk (ORadjusted=26.68; 95% CI 12.69-56.10). On the other hand, a high consumption of vegetables (≥116.65g/day) and fruits (≥233.13g/day) decreases lung cancer risk with an alcohol consumption of 0.1-9.9g/day (ORadjusted=0.52; 95% CI 0.30-0.89; ORadjusted=0.58; 95% CI 0.33-1.03, respectively). An alcohol consumption of 10-29.9g/day in ADH1B 48His allele-carriers increases lung cancer risk (ORadjusted=3.32; 95% CI 1.03-10.70). CONCLUSIONS Alcohol and polymorphisms in genes involved in the metabolism of alcohol and folate are related to the onset of lung cancer.
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Affiliation(s)
- Sara M Álvarez-Avellón
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España
| | - Ana Fernández-Somoano
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España.
| | - Eva M Navarrete-Muñoz
- Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España; Departamento de Salud Pública, Universidad Miguel Hernández, San Juan de Alicante, Alicante, España
| | - Jesús Vioque
- Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España; Departamento de Salud Pública, Universidad Miguel Hernández, San Juan de Alicante, Alicante, España
| | - Adonina Tardón
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España
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Mazlumoglu MR, Ozkan O, Alp HH, Ozyildirim E, Bingol F, Yoruk O, Kuduban O. Measuring Oxidative DNA Damage With 8-Hydroxy-2'-Deoxyguanosine Levels in Patients With Laryngeal Cancer. Ann Otol Rhinol Laryngol 2016; 126:103-109. [PMID: 27780908 DOI: 10.1177/0003489416675873] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVES 8-Hydroxy-2'-deoxyguanosine is a biomolecule associated with DNA damage. We evaluated oxidative stress and DNA damage in patients with laryngeal cancer by measuring 8-hydroxy-2'-deoxyguanosine levels. METHODS This study enrolled 117 subjects, including 64 controls and 53 patients who had benign vocal cord lesions or laryngeal cancer. The benign excised lesions, tumor tissue, noncancerous laryngeal tissue, blood, and urine were subjected to high-performance liquid chromatography, and 8-hydroxy-2'-deoxyguanosine levels were compared between groups. RESULTS Blood and urine 8-hydroxy-2'-deoxyguanosine levels in patients with laryngeal carcinoma were significantly higher than in the controls ( P = .00002, P = .00001). The 8-hydroxy-2'-deoxyguanosine level was significantly higher in tumor tissues than in non-tumor tissue and benign vocal cord lesion tissues ( P = .00002, P = .000001). CONCLUSIONS We determined that laryngeal cancer was associated with oxidative stress, which may be quantified by measuring 8-hydroxy-2'-deoxyguanosine. For a patient with a suspicious laryngeal lesion, 8-hydroxy-2'-deoxyguanosine levels in blood and urine can provide advance information about the likely diagnosis.
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Affiliation(s)
| | - Ozalkan Ozkan
- 2 Department of Otorhinolaryngology, Faculty of Medicine, Erzincan University, Erzincan, Turkey
| | - Hamit Hakan Alp
- 3 Department of Biochemistry, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Ercan Ozyildirim
- 4 Department of Public Health, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Fatih Bingol
- 5 Otorhinolaryngology Clinic, Region Education and Research Hospital, Erzurum, Turkey
| | - Ozgur Yoruk
- 6 Department of Otorhinolaryngology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ozan Kuduban
- 5 Otorhinolaryngology Clinic, Region Education and Research Hospital, Erzurum, Turkey
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Taei M, Hasanpour F, Salavati H, Banitaba S, Kazemi F. Simultaneous determination of cysteine, uric acid and tyrosine using Au-nanoparticles/poly(E)-4-(p-tolyldiazenyl)benzene-1,2,3-triol film modified glassy carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:120-128. [DOI: 10.1016/j.msec.2015.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 08/29/2015] [Accepted: 10/01/2015] [Indexed: 10/22/2022]
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Abstract
The consumption of ethanol can have both beneficial and detrimental effects on the function of the heart and cardiovascular system, depending on the amount consumed. Low-to-moderate amounts of ethanol intake are associated with improvements in cardiac function and vascular health. On the other hand, ethanol chronically consumed in large amounts acts as a toxin to the heart and vasculature. The cardiac injury produced by chronic alcohol abuse can progress to heart failure and eventual death. Furthermore, alcohol abuse may exacerbate preexisting heart conditions, such as hypertension and cardiomyopathy. This article focuses on the molecular mechanisms and pathophysiology of both the beneficial and detrimental cardiac effects of alcohol.
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Affiliation(s)
- Jason D Gardner
- Department of Physiology, Alcohol and Drugs of Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
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Torres A, Cachofeiro V, Millán J, Lahera V, Nieto M, Martín R, Bello E, Alvarez-Sala L. Red wine intake but not other alcoholic beverages increases total antioxidant capacity and improves pro-inflammatory profile after an oral fat diet in healthy volunteers. Rev Clin Esp 2015. [DOI: 10.1016/j.rceng.2015.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Torres A, Cachofeiro V, Millán J, Lahera V, Nieto M, Martín R, Bello E, Alvarez-Sala L. Red wine intake but not other alcoholic beverages increases total antioxidant capacity and improves pro-inflammatory profile after an oral fat diet in healthy volunteers. Rev Clin Esp 2015; 215:486-94. [DOI: 10.1016/j.rce.2015.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 07/07/2015] [Accepted: 07/08/2015] [Indexed: 01/29/2023]
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Kato I, Startup J, Ram JL. Fecal Biomarkers for Research on Dietary and Lifestyle Risk Factors in Colorectal Cancer Etiology. CURRENT COLORECTAL CANCER REPORTS 2013. [DOI: 10.1007/s11888-013-0195-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Ienaga K, Yokozawa T. Creatinine and HMH (5-hydroxy-1-methylhydantoin, NZ-419) as intrinsic hydroxyl radical scavengers. Drug Discov Ther 2012; 5:162-75. [PMID: 22466296 DOI: 10.5582/ddt.2011.v5.4.162] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Creatinine (Crn) is one of the main intrinsic hydroxyl radical (•OH) scavengers and an ideal one for healthy or normal mammals, although this fact has not yet become widely accepted. Our results from urinary data estimated that ca. 0.4-0.6% of Crn is used daily to scavenge •OH in normal mammals [ca. 50 μmole and ca. 400 pmole of •OH in healthy subjects and normal rats, respectively]. In human subjects, Crn reacts non-enzymatically with •OH to form creatol (CTL: 5-hydroxycreatinine) and demethylcreatinine (DMC) in a one to one ratio, and CTL partially decomposes to methylguanidine (MG). And so, the scavenged mole of •OH by Crn is nearly equal to their molar total sum (CTL + MG + DMC) or 2 × (CTL + MG). The molar ratio of (scavenged •OH)/Crn in healthy subjects and normal rats are 4.4 and 6.0 mmole/mole, respectively, i.e. almost similar, but in patients with chronic kidney disease (CKD) the ratio increases up to ca. 60 mmole/mole in proportion to the severity of CKD. Since the level of Crn might not be enough to scavenge all •OH, and MG starts accumulating as a uremic toxin, Crn is not really the ideal scavenger. 5-Hydroxy-1-methylhydantoin (HMH, NZ-419), a Crn metabolite, is another antioxidant, having •OH scavenging ability, and has been shown to inhibit the progression of CKD in rats in stead of Crn, if sufficient amounts are given orally.
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Affiliation(s)
- K Ienaga
- Institute of Natural Medicine, University of Toyama, Toyama, Japan
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14
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Arranz S, Chiva-Blanch G, Valderas-Martínez P, Medina-Remón A, Lamuela-Raventós RM, Estruch R. Wine, beer, alcohol and polyphenols on cardiovascular disease and cancer. Nutrients 2012; 4:759-781. [PMID: 22852062 PMCID: PMC3407993 DOI: 10.3390/nu4070759] [Citation(s) in RCA: 299] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 06/26/2012] [Accepted: 06/27/2012] [Indexed: 12/29/2022] Open
Abstract
Since ancient times, people have attributed a variety of health benefits to moderate consumption of fermented beverages such as wine and beer, often without any scientific basis. There is evidence that excessive or binge alcohol consumption is associated with increased morbidity and mortality, as well as with work related and traffic accidents. On the contrary, at the moment, several epidemiological studies have suggested that moderate consumption of alcohol reduces overall mortality, mainly from coronary diseases. However, there are discrepancies regarding the specific effects of different types of beverages (wine, beer and spirits) on the cardiovascular system and cancer, and also whether the possible protective effects of alcoholic beverages are due to their alcoholic content (ethanol) or to their non-alcoholic components (mainly polyphenols). Epidemiological and clinical studies have pointed out that regular and moderate wine consumption (one to two glasses a day) is associated with decreased incidence of cardiovascular disease (CVD), hypertension, diabetes, and certain types of cancer, including colon, basal cell, ovarian, and prostate carcinoma. Moderate beer consumption has also been associated with these effects, but to a lesser degree, probably because of beer's lower phenolic content. These health benefits have mainly been attributed to an increase in antioxidant capacity, changes in lipid profiles, and the anti-inflammatory effects produced by these alcoholic beverages. This review summarizes the main protective effects on the cardiovascular system and cancer resulting from moderate wine and beer intake due mainly to their common components, alcohol and polyphenols.
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Affiliation(s)
- Sara Arranz
- Department of Internal Medicine, Hospital Clínic, Institut d’Investigació Biomèdica August Pi i Sunyer, University of Barcelona, Barcelona, 08036, Spain; (S.A.); (G.C.-B.); (P.V.-M.)
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
| | - Gemma Chiva-Blanch
- Department of Internal Medicine, Hospital Clínic, Institut d’Investigació Biomèdica August Pi i Sunyer, University of Barcelona, Barcelona, 08036, Spain; (S.A.); (G.C.-B.); (P.V.-M.)
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
| | - Palmira Valderas-Martínez
- Department of Internal Medicine, Hospital Clínic, Institut d’Investigació Biomèdica August Pi i Sunyer, University of Barcelona, Barcelona, 08036, Spain; (S.A.); (G.C.-B.); (P.V.-M.)
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
| | - Alex Medina-Remón
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
- Nutrition and Food Science Department, CeRTA, INSA Pharmacy School, University of Barcelona, Av. Joan XXIII s/n, Barcelona 08028, Spain
| | - Rosa M. Lamuela-Raventós
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
- Nutrition and Food Science Department, CeRTA, INSA Pharmacy School, University of Barcelona, Av. Joan XXIII s/n, Barcelona 08028, Spain
| | - Ramón Estruch
- Department of Internal Medicine, Hospital Clínic, Institut d’Investigació Biomèdica August Pi i Sunyer, University of Barcelona, Barcelona, 08036, Spain; (S.A.); (G.C.-B.); (P.V.-M.)
- CIBER de Fisiopatologia de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Cordoba, 14004, Spain; (A.M.-R.); (R.M.L.-R.)
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Abstract
Oxidatively damaged DNA is implicated in various diseases, including neurodegenerative disorders, cancer, diabetes, cardiovascular and inflammatory diseases as well as aging. Several methods have been developed to detect oxidatively damaged DNA. They include chromatographic techniques, the Comet assay, (32)P-postlabelling and immunochemical methods that use antibodies to detect oxidized lesions. In this review, we discuss the detection of 8-oxo-7,8-dihydro-29-deoxyguanosine (8-oxodG), the most abundant oxidized nucleoside. This lesion is frequently used as a marker of exposure to oxidants, including environmental pollutants, as well as a potential marker of disease progression. We concentrate on studies published between the years 2000 and 2011 that used enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry to detect 8-oxodG in humans, laboratory animals and in cell lines. Oxidative damage observed in these organisms resulted from disease, exposure to environmental pollutants or from in vitro treatment with various chemical and physical factors.
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Affiliation(s)
- Pavel Rossner
- Laboratory of Genetic Ecotoxicology, Institute of Experimental Medicine AS CR, Videnska 1083, 142 20 Prague, Czech Republic.
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16
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Petitpas F, Sichel F, Hébert B, Lagadu S, Beljean M, Pottier D, Laurentie M, Prevost V. Effects of alcohol consumption on biomarkers of oxidative damage to DNA and lipids in ethanol-fed pigs. ACTA ACUST UNITED AC 2011; 65:263-9. [PMID: 21945421 DOI: 10.1016/j.etp.2011.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 08/26/2011] [Accepted: 09/01/2011] [Indexed: 11/18/2022]
Abstract
Chronic alcohol consumption is known to result in tissue injury, particularly in the liver, and is considered a major risk factor for cancers of the upper respiratory tract. Here we assessed the oxidative effects of subchronic ethanol consumption on DNA and lipids by measuring biomarkers 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and malondialdehyde (MDA), respectively. Physiological responses of pigs (n = 4) administered ethanol in drinking water for 39 days were compared with those of water-fed pigs (n = 4). Alcoholisation resulted in serum ethanol concentration of 1.90 g L(-1) and in a moderate but significant increase in alanine aminotransferase activity, an index of liver injury. However, between the alcoholised and control groups there were no significant differences in the levels of 8-oxodG (8-oxodG per 10(6) 2'deoxyguanosine) from leucocytes (2.52 ± 0.42 Vs 2.39 ± 0.34) or from target organs, liver, cardia and oesophagus. Serum MDA levels were also similar in ethanol-fed pigs (0.33 ± 0.04 μM) and controls (0.28 ± 0.03 μM). Interestingly, levels of 8-oxodG in cardia were positively correlated with those in oesophagus (Spearman correlation coefficient R = 1, P < 0.0001). Our results suggest that alcohol consumption may not cause oxidative damage to DNA and lipids as measured by 8-oxodG and MDA, respectively. The duration of alcoholisation and the potential alcohol-induced nutritional deficiency may be critical determinants of ethanol toxicity. Relevant biomarkers, such as factors involved in sensitization to ethanol-induced oxidative stress are required to better elucidate the relationship between alcohol consumption, oxidative stress and carcinogenesis.
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Affiliation(s)
- F Petitpas
- ANSES, Laboratoire de Fougères, BP 90203, 35302 Fougères cedex, France
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17
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Kato M, Iida M, Goto Y, Kondo T, Yajima I. Sunlight Exposure–Mediated DNA Damage in Young Adults. Cancer Epidemiol Biomarkers Prev 2011; 20:1622-8. [DOI: 10.1158/1055-9965.epi-11-0228] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Rodrigo R, Miranda A, Vergara L. Modulation of endogenous antioxidant system by wine polyphenols in human disease. Clin Chim Acta 2010; 412:410-24. [PMID: 21130758 DOI: 10.1016/j.cca.2010.11.034] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 11/24/2010] [Accepted: 11/25/2010] [Indexed: 02/07/2023]
Abstract
Numerous studies indicate that moderate red wine consumption is associated with a protective effect against all-cause mortality. Since oxidative stress constitutes a unifying mechanism of injury of many types of disease processes, it should be expected that polyphenolic antioxidants account for this beneficial effect. Nevertheless, beyond the well-known antioxidant properties of these compounds, they may exert several other protective mechanisms. Indeed, the overall protective effect of polyphenols is due to their large array of biological actions, such as free radical-scavenging, metal chelation, enzyme modulation, cell signalling pathways modulation and gene expression effects, among others. Wine possesses a variety of polyphenols, being resveratrol its most outstanding representative, due to its pleiotropic biological properties. The presence of ethanol in wine aids to polyphenol absorption, thereby contributing to their bioavailability. Before absorption, polyphenols must be hydrolyzed by intestinal enzymes or by colonic microflora. Then, they undergo intestinal and liver metabolism. There have been no reported polyphenol adverse effects derived from intakes currently associated with the normal diet. However, supplements for health-protection should be cautiously used as no level definition has been given to make sure the dose is safe. The role of oxidative stress and the beneficial effects of wine polyphenols against cardiovascular, cancer, diabetes, microbial, inflammatory, neurodegenerative and kidney diseases and ageing are reviewed. Future large scale randomized clinical trials should be conducted to fully establish the therapeutic use of each individual wine polyphenol against human disease.
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Affiliation(s)
- Ramón Rodrigo
- Institute of Biomedical Sciences, University of Chile, Santiago, Chile.
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19
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Schröder H, de la Torre R, Estruch R, Corella D, Martínez-González MA, Salas-Salvadó J, Ros E, Arós F, Flores G, Civit E, Farré M, Fiol M, Vila J, Fernandez-Crehuet J, Ruiz-Gutiérrez V, Lapetra J, Sáez G, Covas MI. Alcohol consumption is associated with high concentrations of urinary hydroxytyrosol. Am J Clin Nutr 2009; 90:1329-35. [PMID: 19759165 DOI: 10.3945/ajcn.2009.27718] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Previously, we reported the presence of hydroxytyrosol in red wine and higher human urinary recovery of total hydroxytyrosol than that expected after a single red wine intake. We hypothesized that the alcohol present in wine could promote endogenous hydroxytyrosol generation. OBJECTIVE The objective was to assess the relation between alcohol consumption and urinary hydroxytyrosol concentrations. DESIGN This was a cross-sectional study with baseline data from a subsample of the PREvención con DIeta MEDiterránea (PREDIMED) trial, an intervention study directed at testing the efficacy of the Mediterranean diet on the primary prevention of cardiovascular disease. Participants included 1045 subjects, aged 55-80 y, who were at high cardiovascular risk. Alcohol consumption was estimated through a validated food-frequency questionnaire. Urinary hydroxytyrosol and ethyl glucuronide, a biomarker of alcohol consumption, were measured. RESULTS Urinary ethyl glucuronide concentrations were directly related to alcohol and wine consumption (P < 0.001) as well as to urinary hydroxytyrosol in both sexes (P < 0.001). The degree of alcohol consumption was directly associated with urinary hydroxytyrosol in male alcohol consumers (P < 0.001). Multivariate logistic regression analyses showed a significant linear trend (P < 0.05) for elevated hydroxytyrosol concentrations with an increase in alcohol consumption. Intakes of >20 g (2 drinks)/d and >10 g (1 drink)/d alcohol in men and women, respectively, were associated (P < 0.05) with elevated concentrations of hydroxytyrosol. CONCLUSIONS We report for the first time a direct association between urinary hydroxytyrosol and alcohol consumption at a population level. These findings reinforce previous work in human and animal models that examines wine as a source of hydroxytyrosol and alcohol as an indirect promoter of endogenous hydroxytyrosol generation. This trial was registered at controlled-trials.com/isrctn/ as ISRCTN 35739639.
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Affiliation(s)
- Helmut Schröder
- CIBER Fisiopatología Obesidad y Nutrición and Biochemistry and Molecular Biology, Instituto de Salud Carlos III, Santiago de Compostela, Spain
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20
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Covas MI, Gambert P, Fitó M, de la Torre R. Wine and oxidative stress: up-to-date evidence of the effects of moderate wine consumption on oxidative damage in humans. Atherosclerosis 2009; 208:297-304. [PMID: 19660752 DOI: 10.1016/j.atherosclerosis.2009.06.031] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Revised: 05/29/2009] [Accepted: 06/29/2009] [Indexed: 12/26/2022]
Abstract
Wine and alcohol consumption has been considered to be protective against coronary heart disease development, an oxidative stress associated disease. Wine contains polyphenols displaying antioxidant properties tested in in vitro and in vivo studies. Due to this, a general consensus exists, both among the general public and the scientific community, that wine, particularly red wine, is an antioxidant beverage. Alcohol consumption, however, is associated with oxidative damage. Several studies have been carried out on the antioxidant health benefits of wine and wine polyphenols. However, adequate scientific evidence (Level I or II) is required to be provided before recommendations or statements which can reach the general public can be formulated. Here, we summarize the state of the art of the up-to-date body of knowledge, and the extent to which there exists evidence of the benefits of moderate wine consumption on oxidative damage in humans. From the available data, there is no evidence, at present, that sustained wine consumption provides antioxidant benefits in healthy volunteers other than to counteract a possible pro-oxidative effect of the alcohol. On the contrary, data on the antioxidant protective effect of red wine in oxidative stress situations are promising. In this way, the postprandial oxidative stress after a meal, despite the diversity of biomarkers used for its evaluation, is counteracted by the ingestion of wine. Further studies are warranted.
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Affiliation(s)
- María Isabel Covas
- Cardiovascular Risk and Nutrition Research Group (URLEC-CARIN), Institut Municipal d' Investigació Mèdica, CIBER de Fisiopatología de la Obesidad y Nutrición, Barcelona Biomedical Research Park, Carrer Doctor Aiguader, 88, 08003 Barcelona, Spain.
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21
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Sakano N, Takahashi N, Wang DH, Sauriasari R, Takemoto K, Kanbara S, Sato Y, Takigawa T, Takaki J, Ogino K. Plasma 3-nitrotyrosine, urinary 8-isoprostane and 8-OHdG among healthy Japanese people. Free Radic Res 2009; 43:183-92. [DOI: 10.1080/10715760802663124] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Noriko Sakano
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Noriko Takahashi
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Da-Hong Wang
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Rani Sauriasari
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kei Takemoto
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | - Yoshie Sato
- Okayama University Graduate School of Health Sciences, Okayama, Japan
| | - Tomoko Takigawa
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Jiro Takaki
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Keiki Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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22
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Mallikarjuna K, Nishanth K, Hou CW, Kuo CH, Sathyavelu Reddy K. Effect of exercise training on ethanol-induced oxidative damage in aged rats. Alcohol 2009; 43:59-64. [PMID: 19185211 DOI: 10.1016/j.alcohol.2008.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Revised: 09/19/2008] [Accepted: 09/20/2008] [Indexed: 02/04/2023]
Abstract
It is well known that lipid peroxidation increases with age, and alcohol drinking further exacerbates this damage. The present study determined the effect of regular exercise training on alcohol-induced oxidative damage and antioxidant status in the liver of aged animals. The age-matched Wistar albino rats (3 months young, n=24; 18 months old, n=24) were evenly divided into four groups: control (C), exercise trained (Ex), ethanol drinking (Et), and exercise plus ethanol drinking (Ex+Et). With ethanol drinking, hepatic malondialdehyde (MDA) level was significantly elevated above control (P<.001), whereas glutathione (GSH) and ascorbic acid (vitamin C) contents were significantly decreased below control. These changes were found to be greater in the aged rats than those of the young rats. For both age groups, exercise training significantly reversed the increase in MDA and decreases in GSH and ascorbic acid induced by ethanol drinking. The present study showed that ethanol-induced deterioration in lipid peroxidation and reduction in antioxidant status in the liver were exacerbated with age. Here, we found that exercise training significantly reversed the adverse conditions that were caused by ethanol in aged rats.
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Affiliation(s)
- K Mallikarjuna
- Division of Molecular Biology, Department of Zoology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
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Yoshioka N, Nakashima H, Hosoda K, Eitaki Y, Shimada N, Omae K. Urinary Excretion of an Oxidative Stress Marker, 8‐hydroxyguanine (8‐OH‐Gua), among Nickel‐cadmium Battery Workers. J Occup Health 2008; 50:229-35. [DOI: 10.1539/joh.l7125] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Noriyuki Yoshioka
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Hiroshi Nakashima
- Department of Preventive Medicine and Public HealthNational Defense Medical College
| | - Kanae Hosoda
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Yoko Eitaki
- Osaka Occupational Health Service CenterJapan Industrial Safety and Health AssociationJapan
| | - Naoki Shimada
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Kazuyuki Omae
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
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24
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Vítek L, Kráslová I, Muchová L, Novotný L, Yamaguchi T. Urinary excretion of oxidative metabolites of bilirubin in subjects with Gilbert syndrome. J Gastroenterol Hepatol 2007; 22:841-5. [PMID: 17565639 DOI: 10.1111/j.1440-1746.2006.04564.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM Bilirubin is a potent endogenous antioxidant substance. Recent data suggest a direct relationship exists between urinary excretion of biopyrrins, a novel group of bilirubin oxidative metabolites, and severity of oxidative stress. The aim of this study was to evaluate urinary excretion of biopyrrins in subjects with Gilbert syndrome. METHODS The study included patients with Gilbert syndrome (n = 33) and healthy blood donors (n = 25). In all subjects complete biochemical tests were conducted along with analysis of urinary excretion of biopyrrins. Linear and logistic regression analyses were used for multiple adjustments of possible confounders/modifiers. RESULTS As expected, high serum bilirubin levels were found in the Gilbert syndrome group as compared to controls (27.8 +/- 9.7 vs 9.9 +/- 3.0 micromol/L, P < 0.001). In contrast, urinary levels of biopyrrins were substantially lower in the Gilbert syndrome group as compared to normobilirubinemic control subjects (19.9 +/- 26.0 vs 90.2 +/- 139.1 U/g urinary creatinine, P < 0.001). The Gilbert syndrome group also had very low prevalence odds ratios for urinary biopyrrins above the median of the control values even after adjustment for possibly confounding factors (odds ratio 0.18, 95% confidence interval 0.33-0.94; P = 0.042). CONCLUSIONS An inverse relationship was demonstrated between serum bilirubin level and urinary excretion of biopyrrins, which is presumably due to antioxidative effects of elevated serum bilirubin levels in Gilbert syndrome.
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Affiliation(s)
- Libor Vítek
- Institute of Clinical Biochemistry and Laboratory Diagnostics, First Medical Faculty, Charles University, Prague, Czech Republic.
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25
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Vasdev S, Gill V, Singal PK. Beneficial effect of low ethanol intake on the cardiovascular system: possible biochemical mechanisms. Vasc Health Risk Manag 2007; 2:263-76. [PMID: 17326332 PMCID: PMC1993980 DOI: 10.2147/vhrm.2006.2.3.263] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Low ethanol intake is known to have a beneficial effect on cardiovascular disease. In cardiovascular disease, insulin resistance leads to altered glucose and lipid metabolism resulting in an increased production of aldehydes, including methylglyoxal. Aldehydes react non-enzymatically with sulfhydryl and amino groups of proteins forming advanced glycation end products (AGEs), altering protein structure and function. These alterations cause endothelial dysfunction with increased cytosolic free calcium, peripheral vascular resistance, and blood pressure. AGEs produce atherogenic effects including oxidative stress, platelet adhesion, inflammation, smooth muscle cell proliferation and modification of lipoproteins. Low ethanol intake attenuates hypertension and atherosclerosis but the mechanism of this effect is not clear. Ethanol at low concentrations is metabolized by low Km alcohol dehydrogenase and aldehyde dehydrogenase, both reactions resulting in the production of reduced nicotinamide adenine dinucleotide (NADH). This creates a reductive environment, decreasing oxidative stress and secondary production of aldehydes through lipid peroxidation. NADH may also increase the tissue levels of the antioxidants cysteine and glutathione, which bind aldehydes and stimulate methylglyoxal catabolism. Low ethanol improves insulin resistance, increases high-density lipoprotein and stimulates activity of the antioxidant enzyme, paraoxonase. In conclusion, we suggest that chronic low ethanol intake confers its beneficial effect mainly through its ability to increase antioxidant capacity and lower AGEs.
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Affiliation(s)
- Sudesh Vasdev
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, Health Sciences Centre, St.John's, Newfoundland, Canada.
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26
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Vítek L, Schwertner HA. The Heme Catabolic Pathway and its Protective Effects on Oxidative Stress‐Mediated Diseases. Adv Clin Chem 2007; 43:1-57. [PMID: 17249379 DOI: 10.1016/s0065-2423(06)43001-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Bilirubin, the principal bile pigment, is the end product of heme catabolism. For many years, bilirubin was thought to have no physiological function other than that of a waste product of heme catabolism--useless at best and toxic at worst. Although hyperbilirubinemia in neonates has been shown to be neurotoxic, studies performed during the past decade have found that bilirubin has a number of new and interesting biochemical and biological properties. In addition, there is now a strong body of evidence suggesting that bilirubin may have a beneficial role in preventing oxidative changes in a number of diseases including atherosclerosis and cancer, as well as a number of inflammatory, autoimmune, and degenerative diseases. The results also suggest that activation of the heme oxygenase and heme catabolic pathway may have beneficiary effects on disease prevention either through the action of bilirubin or in conjunction with bilirubin. If so, it may be possible to therapeutically induce heme oxygenase, increase bilirubin concentrations, and lower the risk of oxidative stress-related diseases.
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Affiliation(s)
- Libor Vítek
- Fourth Department of Internal Medicine, Institute of Clinical Biochemistry, Laboratory Diagnostics, Charles University of Prague, U Nemocnice 2, Praha 2, 128 08 Prague, Czech Republic
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27
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Rossner P, Gammon MD, Terry MB, Agrawal M, Zhang FF, Teitelbaum SL, Eng SM, Gaudet MM, Neugut AI, Santella RM. Relationship between urinary 15-F2t-isoprostane and 8-oxodeoxyguanosine levels and breast cancer risk. Cancer Epidemiol Biomarkers Prev 2006; 15:639-44. [PMID: 16614103 DOI: 10.1158/1055-9965.epi-05-0554] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
To evaluate the role of oxidative stress in breast cancer, we measured urinary levels of 15-F(2t)-isoprostane (15-F(2t)-IsoP) and 8-oxodeoxyguanosine (8-oxodG) in 400 cases and 401 controls, participants of the Long Island Breast Cancer Study Project. We also analyzed the effect of different factors that are associated with oxidative stress and might influence 15-F(2t)-IsoP and 8-oxodG levels. We observed a statistically significant trend in breast cancer risk with increasing quartiles of 15-F(2t)-IsoP levels [odds ratio (OR), 1.25; 95% confidence interval (95% CI), 0.81-1.94; OR, 1.53; 95% CI, 0.99-2.35; OR, 1.88; 95% CI, 1.23-2.88, for the 2nd, 3rd, and 4th quartile relative to the lowest quartile, respectively; P(trend) = 0.002]. Although it is possible that increased levels may reflect the stress associated with recent treatment, the positive association was also observed when the analyses were restricted to case women for whom chemotherapy and radiation therapy had not yet been initiated at the time of the urine collection. The association with the highest quartile compared with lowest quartile of 15-F(2t)-IsoP was similar across strata of age, physical activity, fruit and vegetable intake, alcohol intake, cigarette smoking, body mass index, and menopausal status. We did not observe any association of breast cancer risk with 8-oxodG levels, but when cases with radiation treatment were removed from the analysis, a significant inverse trend (P = 0.04) was observed. Among controls, levels of 15-F(2t)-IsoP were higher among current cigarette smokers but did not differ by the amount of physical activity, fruit and vegetable intake, alcohol intake, body mass index, and menopausal status. Among controls, levels of 8-oxodG were higher among postmenopausal women and current and former cigarette smokers but did not differ by the other factors. In summary, our results suggest that urinary markers of lipid peroxidation and oxidative DNA damage may be associated with breast cancer risk.
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Affiliation(s)
- Pavel Rossner
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
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Vasdev S, Gill V, Parai S, Gadag V. Low ethanol intake prevents salt-induced hypertension in WKY rats. Mol Cell Biochem 2006; 287:53-60. [PMID: 16685463 DOI: 10.1007/s11010-005-9058-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Accepted: 10/18/2005] [Indexed: 11/24/2022]
Abstract
Low alcohol intake in humans lowers the risk of coronary heart disease and may lower blood pressure. In hypertension, insulin resistance with altered glucose metabolism leads to increased formation of aldehydes. We have shown that chronic low alcohol intake decreased systolic blood pressure (SBP) and tissue aldehyde conjugates in spontaneously hypertensive rats and demonstrated a strong link between elevated tissue aldehyde conjugates and hypertension in salt-induced hypertensive Wistar-Kyoto (WKY) rats. This study investigated the antihypertensive effect of chronic low alcohol consumption in high salt-treated WKY rats and its effect on tissue aldehyde conjugates, platelet cytosolic free calcium ([Ca2+]i, and renal vascular changes. Animals, aged 7 weeks, were divided into three groups of six animals each. The control group was given normal salt diet (0.7% NaCl) and regular drinking water; the high salt group was given a high salt diet (8% NaCl) and regular drinking water; the high salt + ethanol group was given a high salt diet and 0.25% ethanol in drinking water. After 10 weeks, SBP, platelet [Ca2+]i, and tissue aldehyde conjugates were significantly higher in rats in the high salt group as compared with controls. Animals on high salt diets also showed smooth muscle cell hyperplasia in the small arteries and arterioles of the kidney. Ethanol supplementation prevented the increase in SBP and platelet [Ca2+]i and aldehyde conjugates in liver and aorta. Kidney aldehyde conjugates and renal vascular changes were attenuated. These results suggest that chronic low ethanol intake prevents salt-induced hypertension and attenuates renal vascular changes in WKY rats by preventing an increase in tissue aldehyde conjugates and cytosolic [Ca2+]i.
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Affiliation(s)
- Sudesh Vasdev
- Discipline of Medicine, Faculty of Medicine Memorial University of Newfoundland St. John's, Newfoundland, A1B 3V6, Canada.
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Kimura S, Yamauchi H, Hibino Y, Iwamoto M, Sera K, Ogino K. Evaluation of Urinary 8-Hydroxydeoxyguanine inHealthy Japanese People. Basic Clin Pharmacol Toxicol 2006; 98:496-502. [PMID: 16635109 DOI: 10.1111/j.1742-7843.2006.pto_217.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The urinary concentration of 8-hydroxydeoxyguanine (8-OHdG), which is a biomarker of oxidative DNA damage, was measured in 248 healthy Japanese, and its correlations with life style, urinary metal elements, serum antioxidants, and other plasma or serum factors were investigated. The mean urinary concentration of 8-OHdG was 15.2+/-5.71 ng/mg creatinine. Mean urinary 8-OHdG was not significantly different in terms of age (<45, >or=45), gender, smoking (no, <20, >or=20), and alcohol consumption (no, occasionally, sometimes and usually). Moreover, multiple regression analysis showed a significant association between urinary 8-OHdG and urinary arsenic (As) or chromium (Cr), and a tendency for association between the former and aluminum (Al) and nickel (Ni). Age, gender and plasma or serum factors including antioxidants, lipid peroxide, HbA1c, BUN, and iron did not show such an association. The present study suggests that natural exposure to toxic metal elements such as As, Cr, and Ni may influence oxidative DNA damage in healthy people under usual environmental management. Therefore, the measurement of urinary metals such as As, Ni and Cr is prerequisite for the study of the relationship between urinary 8-OHdG and other variable factors.
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Affiliation(s)
- Shingo Kimura
- Department of Environmental and Preventive Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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MATSUZAKI M, HARUNA M, OTA E, WATANABE E, MURAYAMA R, TSUKAMOTO H. Urinary biopyrrin as a possible oxidative stress marker during pregnancy. ACTA ACUST UNITED AC 2006. [DOI: 10.3418/jjam.20.2_40] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Mahabir S, Leitzmann MF, Virtanen MJ, Virtamo J, Pietinen P, Albanes D, Taylor PR. Prospective Study of Alcohol Drinking and Renal Cell Cancer Risk in a Cohort of Finnish Male Smokers. Cancer Epidemiol Biomarkers Prev 2005. [DOI: 10.1158/1055-9965.170.14.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Of the few studies that have examined alcohol consumption in relation to risk of renal cell cancer (RCC), most are case-control studies. The extent to which alcohol affects RRC risk is unclear. We prospectively examined the association between total alcohol intake as well as specific types of alcoholic beverage and RCC in a large cohort of Finnish male smokers. Men from the Alpha-Tocopherol, BetaCarotene (ATBC) Cancer Prevention Study were followed for 12 years and RCC cases were identified. Alcohol consumption was assessed at baseline using a questionnaire previously shown to be both reproducible and valid. Cox proportional hazards modeling was used to adjust simultaneously for known or suspected risk factors for RCC. We ascertained 195 incident cases of RCC. In multivariate analysis, the relative risks and 95% confidence intervals (CI) of RCC according to increasing quartiles of total alcohol intake were 1.0, 0.91 (0.62-1.33), 0.94 (0.64-1.38), and 0.53 (0.34-0.83), respectively (P value for trend = 0.005); for spirit consumption, 1.0, 0.93 (0.63-1.Fspiait39), 0.84 (0.58-1.20), and 0.55 (0.36-0.85) (P for trend = 0.02); and for beer intake, 1.0, 1.22 (0.85-1.76), 0.83 (0.57-1.22), and 0.55 (0.36-0.85) (P for trend = 0.003). Too few people in this cohort drank wine to assess its association with risk of RCC. These data suggest that alcohol consumption is associated with decreased risk of RCC in male smokers. Because most of the risk reductions were seen at the highest quartile of alcohol intake and alcohol is a risk factor for a number of cancers particularly among smokers, these data should be interpreted with caution.
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Affiliation(s)
- Somdat Mahabir
- 1Cancer Prevention Studies Branch, Center for Cancer Research, and
| | - Michael F. Leitzmann
- 2Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland; and
| | - Mikko J. Virtanen
- 3Department of Epidemiology and Health Promotion, National Public ealth Institute, Helsinki, Finland
| | - Jarmo Virtamo
- 3Department of Epidemiology and Health Promotion, National Public ealth Institute, Helsinki, Finland
| | - Pirjo Pietinen
- 3Department of Epidemiology and Health Promotion, National Public ealth Institute, Helsinki, Finland
| | - Demetrius Albanes
- 2Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland; and
| | - Philip R. Taylor
- 1Cancer Prevention Studies Branch, Center for Cancer Research, and
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Yamauchi H, Aminaka Y, Yoshida K, Sun G, Pi J, Waalkes MP. Evaluation of DNA damage in patients with arsenic poisoning: urinary 8-hydroxydeoxyguanine. Toxicol Appl Pharmacol 2004; 198:291-6. [PMID: 15276408 DOI: 10.1016/j.taap.2003.10.021] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2003] [Accepted: 10/08/2003] [Indexed: 10/26/2022]
Abstract
The relationship between arsenic exposure and DNA damage in patients with acute or chronic arsenic poisoning was analyzed. Urinary 8-hydroxydeoxyguanine (8-OHdG) concentrations were measured as an indication of oxidative DNA damage. A remarkable increase in 8-OHdG in the urine was observed in 60% of 52 patients with acute arsenic poisoning from the accidental oral intake of the arsenic trioxide. This was two- to threefold higher than levels in normal healthy subjects (n = 248). There was a clear relationship between arsenic concentrations in urine after acute poisoning and elevated levels of 8-OHdG. Levels of urinary 8-OHdG returned to normal within 180 days after the acute arsenic poisoning event. In patients chronically poisoned by the consumption of well water with elevated levels of arsenate [As(V)], elevated 8-OHdG concentrations in urine were also observed. A significant correlation between the 8-OHdG levels and arsenic levels in the urine was observed in 82 patients with chronic poisoning. Thus, evidence of oxidative DNA damage occurred in acute arsenic poisoning by arsenite [As(III)] and in chronic arsenic poisoning by As(V). In chronic poisoning patients provided low-arsenic drinking water, evidence of DNA damage subsided between 9 months and 1 year after the high levels of arsenic intake were reduced. The initial level of arsenic exposure appeared to dictate the length of this recovery period. These data indicate that some aspects of chronic and acute arsenic poisoning may be reversible with the cessation of exposure. This knowledge may contribute to our understanding of the risk elevation from arsenic carcinogenesis and perhaps be used in a prospective fashion to assess individual risk.
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Affiliation(s)
- Hiroshi Yamauchi
- Department of Preventive Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan.
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