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The Neuroprotective Effects of Carvacrol on Ethanol-Induced Hippocampal Neurons Impairment via the Antioxidative and Antiapoptotic Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4079425. [PMID: 28191274 PMCID: PMC5278232 DOI: 10.1155/2017/4079425] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 11/02/2016] [Accepted: 11/23/2016] [Indexed: 02/03/2023]
Abstract
Chronic alcohol consumption causes hippocampal neuronal impairment, which is associated with oxidative stress and apoptosis. Carvacrol is a major monoterpenic phenol found in essential oils from the family Labiatae and has antioxidative stress and antiapoptosis actions. However, the protective effects of carvacrol in ethanol-induced hippocampal neuronal impairment have not been fully understood. We explored the neuroprotective effects of carvacrol in vivo and in vitro. Male C57BL/6 mice were exposed to 35% ethanol for 4 weeks to establish ethanol model in vivo, and hippocampal neuron injury was simulated by 200 mM ethanol in vitro. Morris water maze test was performed to evaluate the cognitive dysfunction. The oxidative stress injury of hippocampal neurons was evaluated by measuring the levels of oxidative stress biomarkers. Histopathological examinations and western blot were performed to evaluate the apoptosis of neurons. The results showed that carvacrol attenuates the cognitive dysfunction, oxidative stress, and apoptosis of the mice treated with ethanol and decreases hippocampal neurons apoptosis induced by ethanol in vitro. In addition, western blot analysis revealed that carvacrol modulates the protein expression of Bcl-2, Bax, caspase-3, and p-ERK, without influence of p-JNK and p-p38. Our results suggest that carvacrol alleviates ethanol-mediated hippocampal neuronal impairment by antioxidative and antiapoptotic effects.
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Wen DC, Hu XY, Wang YY, Luo JX, Lin W, Jia LY, Gong XY. Effects of aqueous extracts from Panax ginseng and Hippophae rhamnoides on acute alcohol intoxication: An experimental study using mouse model. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:67-73. [PMID: 27374757 DOI: 10.1016/j.jep.2016.06.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 06/16/2016] [Accepted: 06/30/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute alcohol intoxication (AAI) is a frequent emergency, but therapeutic drugs with superior efficacy and safety are lacking. Panax ginseng (PG) and Hippophae rhamnoides (HR) respectively has a wide application as a complementary therapeutic agent in China for the treatment of AAI and liver injury induced by alcohol. We investigated the effects of aqueous extracts from PG and HR (AEPH) on AAI mice and identified its underlying mechanisms. MATERIALS AND METHODS Models of AAI were induced by intragastric administration of ethanol (8g/kg). Seventy-two Specific pathogen-free (SPF) male Kunming mice were randomly divided into six groups: normal group, positive control group, AEPH of low dosage (100mg/kg) group, AEPH of medium dose (200mg/kg) group, AEPH of high dosage (400mg/kg) group and model group. The mice were treated with metadoxine (MTD, 500mg/kg) and AEPH. Thirty minutes later, the normal group was given normal saline, while the other groups were given ethanol (i.g., 8g/kg). The impact of AEPH was observed. In the same way, another seventy-two Kunming mice were randomly divided into six groups equally. The blood ethanol concentration at 0.5, 1, 1.5, 2, 3 and 6h after ethanol intake was determined by way of gas chromatography. The activity of alcohol dehydrogenase (ADH), aldehyde dehydrogenase (ALDH) and microsomal ethanol oxidase (EO) in liver, and the concentration of β-endorphin (β-EP), leucine-enkephalin (LENK) in the brain were determined by enzyme-linked-immunosorbent serologic assay (ELISA). RESULTS AEPH markedly prolonged alcohol tolerance time and shortened sober-up time after acute ethanol administration. AEPH decreased blood ethanol levels in six tests after ethanol intake. The 7-day survival rate of AEPH group was obviously superior to model group. AEPH increased the activities of ADH, ALDH, and decreased EO activity in liver. The crucial find was that AEPH markedly decreased β-EP and LENK concentration in the brain. CONCLUSIONS AEPH can markedly increase the levels of ADH, ALDH, decrease EO activity in liver and decrease the concentration of β-EP and LENK in the brain to against acute alcohol intoxication in mice.
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Affiliation(s)
- Da-Chao Wen
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China; Department of Infectious Diseases, Teaching Hospital of Chengdu University of Traditional Chinese Medicine, 610072 Sichuan Province, China
| | - Xiao-Yu Hu
- Department of Infectious Diseases, Teaching Hospital of Chengdu University of Traditional Chinese Medicine, 610072 Sichuan Province, China.
| | - Yan-Yan Wang
- Department of Infectious Diseases, Teaching Hospital of Chengdu University of Traditional Chinese Medicine, 610072 Sichuan Province, China
| | - Jian-Xing Luo
- Department of Infectious Diseases, Teaching Hospital of Chengdu University of Traditional Chinese Medicine, 610072 Sichuan Province, China
| | - Wu Lin
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Ling-Yan Jia
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Xin-Yue Gong
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
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Peng SH, Hsu SY, Kuo PJ, Rau CS, Cheng YA, Hsieh CH. Influence of alcohol use on mortality and expenditure during hospital admission: a cross-sectional study. BMJ Open 2016; 6:e013176. [PMID: 27803110 PMCID: PMC5128992 DOI: 10.1136/bmjopen-2016-013176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVES This study was designed to investigate the effect of alcohol intoxication on clinical presentation of hospitalised adult trauma patients at a Level I trauma centre using propensity score matching. DESIGN Cross-sectional study. SETTING Taiwan. PARTICIPANTS Detailed data of 929 hospitalised adult trauma patients with alcohol intoxication, aged 20-65 years, and 10 104 corresponding patients without alcohol intoxication were retrieved from the Trauma Registry System between 1 January 2009 and 31 December 2014. Alcohol intoxication was defined as a blood alcohol concentration (BAC) ≥50 mg/dL. MAIN OUTCOME MEASURES In-hospital mortality and expenditure. RESULTS Patients with alcohol intoxication presented with significantly higher short-term mortality (OR: 3.0, 95% CI 2.0 to 4.4; p<0.001) than patients without alcohol intoxication. However, on comparison with propensity score-matched patients with respect to sex, age, comorbidity, Glasgow Coma Scale (GCS), injury region based on Abbreviated Injury Scale (AIS) and Injury Severity Score (ISS), alcohol intoxication did not significantly influence mortality (OR: 0.8, 95% CI 0.5 to 1.4; p=0.563). This implied that the higher mortality of alcohol-intoxicated patients was attributable to patient characteristics such as a higher injury severity rather than alcohol intoxication. Even on comparison with sex-matched, age-matched and comorbidity-matched patients without alcohol intoxication, patients with alcohol intoxication still had significantly higher total expenditure (17.4% higher), cost of operation (40.3% higher), cost of examination (52.8% higher) and cost of pharmaceuticals (38.3% higher). CONCLUSIONS The associated higher mortality of adult trauma patients with alcohol intoxication was completely attributable to other patient characteristics and associated injury severity rather than the effects of alcohol. However, patients with alcohol intoxication incurred significantly higher expenditure than patients without alcohol intoxication, even on comparison with sex-matched, age-matched and comorbidity-matched patients without alcohol intoxication.
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Affiliation(s)
- Shu-Hui Peng
- Executive Master Program, Department of Healthcare Administration, I-Shou University, Kaohsiung, Taiwan
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shiun-Yuan Hsu
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pao-Jen Kuo
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Shyuan Rau
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ya-Ai Cheng
- Executive Master Program, Department of Healthcare Administration, I-Shou University, Kaohsiung, Taiwan
| | - Ching-Hua Hsieh
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Phenome-Wide Association Study for Alcohol and Nicotine Risk Alleles in 26394 Women. Neuropsychopharmacology 2016; 41:2688-96. [PMID: 27187070 PMCID: PMC5026736 DOI: 10.1038/npp.2016.72] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 02/07/2023]
Abstract
To identify novel traits associated with alleles known to predispose to alcohol and nicotine use, we conducted a phenome-wide association study (PheWAS) in a large multi-population cohort. We investigated 7688 African-Americans, 1133 Asian-Americans, 14 081 European-Americans, and 3492 Hispanic-Americans from the Women's Health Initiative, analyzing alleles at the CHRNA3-CHRNA5 locus, ADH1B, and ALDH2 with respect to phenotypic traits related to anthropometric characteristics, dietary habits, social status, psychological traits, reproductive history, health conditions, and nicotine/alcohol use. In ADH1B trans-population meta-analysis and population-specific analysis, we replicated prior associations with drinking behaviors and identified multiple novel phenome-wide significant and suggestive findings related to psychological traits, socioeconomic status, vascular/metabolic conditions, and reproductive health. We then applied Bayesian network learning algorithms to provide insight into the causative relationships of the novel ADH1B associations: ADH1B appears to affect phenotypic traits via both alcohol-mediated and alcohol-independent effects. In an independent sample of 2379 subjects, we also replicated the novel ADH1B associations related to socioeconomic status (household gross income and highest grade finished in school). For CHRNA3-CHRNA5 risk alleles, we replicated association with smoking behaviors, lung cancer, and asthma. There were also novel suggestive CHRNA3-CHRNA5 findings with respect to high-cholesterol-medication use and distrustful attitude. In conclusion, the genetics of alcohol and tobacco use potentially has broader implications on physical and mental health than is currently recognized. In particular, ADH1B may be a gene relevant for the human phenome via both alcohol metabolism-related mechanisms and other alcohol metabolism-independent mechanisms.
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Hung CL, Gonçalves A, Lai YJ, Lai YH, Sung KT, Lo CI, Liu CC, Kuo JY, Hou CJY, Chao TF, Bulwer BE, Lin SJ, Yeh HI, Lam CSP. Light to Moderate Habitual Alcohol Consumption Is Associated with Subclinical Ventricular and Left Atrial Mechanical Dysfunction in an Asymptomatic Population: Dose-Response and Propensity Analysis. J Am Soc Echocardiogr 2016; 29:1043-1051.e4. [PMID: 27639812 DOI: 10.1016/j.echo.2016.07.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND The effects of light to moderate alcohol consumption on cardiac mechanics remain poorly understood. The aim of this study was to investigate the dose-response relationship between alcohol consumption and left ventricular (LV) and left atrial (LA) function using myocardial deformation. METHODS In total 3,946 asymptomatic participants (mean age, 49.7 ± 10.7 years; 65% men) were consecutively studied using comprehensive echocardiography and two-dimensional speckle-tracking in a cross-sectional, retrospective manner. Global LV longitudinal and circumferential strain and LA strain were assessed and related to habitual alcohol consumption pattern (fewer than one, one to six, or more than six drinks per week) before and after propensity matching. RESULTS With increasing weekly alcohol consumption, participants displayed greater LV eccentric remodeling, impaired diastolic function, and more attenuated global longitudinal strain, LA strain (adjusted coefficients, -1.07 [95% CI, -1.95 to -0.19] and -3.73 [95% CI, -5.36 to -2.11]), and early diastolic strain rates (adjusted coefficients, 0.07 [95% CI, 0.03-0.11] and 0.33 [95% CI, 0.24-0.42]) for one to six and more than six drinks per week, respectively (P < .05 for all) in a dose-response manner. Participants with recent alcohol abstinence displayed cardiac mechanics intermediate between those of nondrinkers and current drinkers. After propensity matching (n = 1,140), participants currently consuming more than one drink per week continued to have significantly attenuated global longitudinal strain and all LA mechanics compared with those consuming fewer than one drink per week (P < .05 for all). CONCLUSIONS Habitual alcohol consumption, even at light to moderate doses, is associated with both reduced LV and LA mechanics in a dose-dependent manner. Whether such observations are reversible or related to future atrial fibrillation deserves further study.
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Affiliation(s)
- Chung-Lieh Hung
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan; Institute of Clinical Medicine, National Yang Ming University School of Medicine, Taipei, Taiwan
| | - Alexandra Gonçalves
- University of Porto Medical School, Porto, Portugal; Brigham and Women's Hospital, Boston, Massachusetts
| | - Yu-Jun Lai
- Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan
| | - Yau-Huei Lai
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan
| | - Kuo-Tzu Sung
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan
| | - Chi-In Lo
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan
| | - Chuan-Chuan Liu
- Health Evaluation Center, Mackay Memorial Hospital, Taipei, Taiwan; Graduate Institute of Health Care Organization Administration, College of Public Health National Taiwan University, Taipei, Taiwan; Department of Medical Technology, Yuanpei University of Science and Technology, Hsinchu, Taiwan
| | - Jen-Yuan Kuo
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Charles Jia-Yin Hou
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Tze-Fan Chao
- Institute of Clinical Medicine, National Yang Ming University School of Medicine, Taipei, Taiwan
| | | | - Shing-Jong Lin
- Institute of Clinical Medicine, National Yang Ming University School of Medicine, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Hung-I Yeh
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan; Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan.
| | - Carolyn S P Lam
- National Heart Centre Singapore and Duke-National University of Singapore, Singapore
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Yuen LH, Saxena NS, Park HS, Weinberg K, Kool ET. Dark Hydrazone Fluorescence Labeling Agents Enable Imaging of Cellular Aldehydic Load. ACS Chem Biol 2016; 11:2312-9. [PMID: 27326450 PMCID: PMC5503141 DOI: 10.1021/acschembio.6b00269] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aldehydes are key intermediates in many cellular processes, from endogenous metabolic pathways like glycolysis to undesired exogenously induced processes such as lipid peroxidation and DNA interstrand cross-linking. Alkyl aldehydes are well documented to be cytotoxic, affecting the functions of DNA and protein, and their levels are tightly regulated by the oxidative enzyme ALDH2. Mutations in this enzyme are associated with cardiac damage, diseases such as Fanconi anemia (FA), and cancer. Many attempts have been made to identify and quantify the overall level of these alkyl aldehydes inside cells, yet there are few practical methods available to detect and monitor these volatile aldehydes in real time. Here, we describe a multicolor fluorogenic hydrazone transfer ("DarkZone") system to label alkyl aldehydes, yielding up to 30-fold light-up response in vitro. A cell-permeant DarkZone dye design was applied to detect small-molecule aldehydes in the cellular environment. The new dye design also enabled the monitoring of cellular acetaldehyde production from ethanol over time by flow cytometry, demonstrating the utility of the DarkZone dyes for measuring and imaging the aldehydic load related to human disease.
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Affiliation(s)
- Lik Hang Yuen
- Department of Chemistry, Stanford University , Stanford, California 94305, United States
| | - Nivedita S Saxena
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford University , Stanford, California 94305, United States
| | - Hyun Shin Park
- Department of Chemistry, Stanford University , Stanford, California 94305, United States
| | - Kenneth Weinberg
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford University , Stanford, California 94305, United States
| | - Eric T Kool
- Department of Chemistry, Stanford University , Stanford, California 94305, United States
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Tolstrup JS, Wium-Andersen MK, Ørsted DD, Nordestgaard BG. Alcohol consumption and risk of atrial fibrillation: Observational and genetic estimates of association. Eur J Prev Cardiol 2016; 23:1514-23. [DOI: 10.1177/2047487316641804] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/09/2016] [Indexed: 11/16/2022]
Affiliation(s)
| | - Marie Kim Wium-Andersen
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark
- The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - David Dynnes Ørsted
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark
- The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Børge Grønne Nordestgaard
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark
- The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital, Denmark
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Koneru M, Sahu BD, Kumar JM, Kuncha M, Kadari A, Kilari EK, Sistla R. Fisetin protects liver from binge alcohol-induced toxicity by mechanisms including inhibition of matrix metalloproteinases (MMPs) and oxidative stress. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.02.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Raymond AR, Becker J, Woodiwiss AJ, Booysen HL, Norton GR, Brooksbank RL. Ethanol-Associated Cardiomyocyte Apoptosis and Left Ventricular Dilation Are Unrelated to Changes in Myocardial Telomere Length in Rats. J Card Fail 2016; 22:294-302. [DOI: 10.1016/j.cardfail.2015.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/07/2015] [Accepted: 06/15/2015] [Indexed: 12/26/2022]
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Niemelä O. Biomarker-Based Approaches for Assessing Alcohol Use Disorders. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:166. [PMID: 26828506 PMCID: PMC4772186 DOI: 10.3390/ijerph13020166] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/14/2016] [Accepted: 01/20/2016] [Indexed: 12/11/2022]
Abstract
Although alcohol use disorders rank among the leading public health problems worldwide, hazardous drinking practices and associated morbidity continue to remain underdiagnosed. It is postulated here that a more systematic use of biomarkers improves the detection of the specific role of alcohol abuse behind poor health. Interventions should be initiated by obtaining information on the actual amounts of recent alcohol consumption through questionnaires and measurements of ethanol and its specific metabolites, such as ethyl glucuronide. Carbohydrate-deficient transferrin is a valuable tool for assessing chronic heavy drinking. Activities of common liver enzymes can be used for screening ethanol-induced liver dysfunction and to provide information on the risk of co-morbidities including insulin resistance, metabolic syndrome and vascular diseases. Conventional biomarkers supplemented with indices of immune activation and fibrogenesis can help to assess the severity and prognosis of ethanol-induced tissue damage. Many ethanol-sensitive biomarkers respond to the status of oxidative stress, and their levels are modulated by factors of life style, including weight gain, physical exercise or coffee consumption in an age- and gender-dependent manner. Therefore, further attention should be paid to defining safe limits of ethanol intake in various demographic categories and establishing common reference intervals for biomarkers of alcohol use disorders.
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Affiliation(s)
- Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital and University of Tampere, Seinäjoki 60220, Finland.
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61
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Árnyas EM, Pál L, Baranyi G, Bujdosó O, Rácz G, Ádány R, McKee M, Szűcs S. Metabolites of Aliphatic Alcohols Detected in Alcoholic Beverages Inhibit Phagocytosis. Alcohol Alcohol 2015; 51:388-94. [PMID: 26715358 DOI: 10.1093/alcalc/agv132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 11/24/2015] [Indexed: 11/14/2022] Open
Abstract
AIMS The aim of our study was to measure granulocyte and monocyte phagocytosis following treatment of cells with some metabolites of aliphatic alcohols alone and in combination with acetaldehyde. METHODS The cells were separated from human peripheral blood prior to determination of phagocytosis of opsonized zymosan particles by granulocytes and monocytes treated individually with metabolites of aliphatic alcohols including formaldehyde, 1-propanal, acetone, 1-butanal, and 2-butanone and in combination with acetaldehyde. RESULTS The findings revealed that metabolites of aliphatic alcohols inhibited phagocytosis by granulocytes and monocytes in a concentration-dependent manner and when combined with acetaldehyde, they caused a further decrease in phagocytic activity. CONCLUSION Due to their additive effects, it is possible that, in combination with acetaldehyde, metabolites of aliphatic alcohols may inhibit phagocytosis at physiologically realistic concentrations in episodic heavy drinkers, thereby contributing to their increased susceptibility to infectious diseases.
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Affiliation(s)
- Ervin M Árnyas
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - László Pál
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Gergő Baranyi
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Orsolya Bujdosó
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Gábor Rácz
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Róza Ádány
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Martin McKee
- European Centre on Health of Societies in Transition, London School of Hygiene and Tropical Medicine, London, UK
| | - Sándor Szűcs
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
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Lu C, Xu W, Zhang F, Jin H, Chen Q, Chen L, Shao J, Wu L, Lu Y, Zheng S. Ligustrazine prevents alcohol-induced liver injury by attenuating hepatic steatosis and oxidative stress. Int Immunopharmacol 2015; 29:613-621. [DOI: 10.1016/j.intimp.2015.09.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 08/29/2015] [Accepted: 09/23/2015] [Indexed: 12/20/2022]
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Gao ML, Chen L, Li YF, Xue XC, Chen L, Wang LN, Shah W, Kong Y. Synergistic increase of oxidative stress and tumor markers in PAH-exposed workers. Asian Pac J Cancer Prev 2015; 15:7105-12. [PMID: 25227798 DOI: 10.7314/apjcp.2014.15.17.7105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In this study, we investigated oxidative stress and tumor marker levels of polycyclic aromatic hydrocarbons (PAHs) in 136 coke oven workers and in 60 control subjects, and evaluated the correlation between oxidative stress and tumor marker levels. Questionnaires on basic demographic information were also administered. Significant differences in employment time and percentages of alcohol drinkers were observed between the control and exposed groups. PAH exposure was assessed using urinary 1-hydroxy-pyrene (1-OHP) levels and was found to be significantly higher in workers than in the controls. Significant differences (P<0.001) of MDA, GST, LDH, NSE, Cyfra21-1, and of SCC and TNF-a (P<0.0001 and P<0.05, P<0.001, respectively) levels were observed among controls and coke-oven workers, except for bottom coke oven workers. Associations between age and risk of increased TNF-a, smoking and increased GST activities, and drinking with increased MDA concentrations, were marginal (P=0.055, P=0.048, P=0.057, respectively). The association between smoking with MDA (P=0.004), NSE (P=0.005), SCC (P=0.004) and TNF-a (P<0.001), and drinking with TNF-a levels was significant (P=0.012). In addition, a significant positive correlation between oxidative stress and tumor markers was found in the present study. These results suggest that a synergistic increase of oxidative stress and tumor markers induced by PAHs may play a role in toxic responses for PAHs in coke oven workers.
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Affiliation(s)
- Mei-Li Gao
- Institute of Mitochondrial Biology and Medicine, Department of Biological Science and Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China E-mail :
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Suzuki T, Yasuhara N, Ueda T, Inukai M, Mio M. Reaction of acetaldehyde with 5-aminolevulinic acid via dihydropyrazine derivative. Chem Pharm Bull (Tokyo) 2015; 63:126-9. [PMID: 25748783 DOI: 10.1248/cpb.c14-00694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
When a solution of 5-aminolevulinic acid (ALA) was incubated with acetaldehyde at neutral pH, a product was generated. This product was identified as 3-ethylpyrazine-2,5-dipropanoic acid (ETPY). ETPY was stable at neutral pH. It has been reported that ALA dimerizes at neutral pH generating 3,6-dihydropyrazine-2,5-dipropanoic acid (DHPY), and subsequently resulting in pyrazine-2,5-dipropanoic acid (PY) by autoxidation. In the present reaction, DHPY generated from ALA reacted with acetaldehyde, resulting in ETPY. Preadministration of ALA 3 min prior to acetaldehyde injection supressed the toxicity of acetaldehyde in male mice. These results suggest that ALA may be useful as a scavenger for acetaldehyde.
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Suh HS, Kim JS, Kim SS, Jung JG, Yoon SJ, Ahn JB. Influence of the Flushing Response in the Relationship between Alcohol Consumption and Cardiovascular Disease Risk. Korean J Fam Med 2014; 35:295-302. [PMID: 25426277 PMCID: PMC4242907 DOI: 10.4082/kjfm.2014.35.6.295] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 10/07/2014] [Indexed: 11/04/2022] Open
Abstract
Background The purpose of this study was to examine the relationship between cardiovascular disease risk and alcohol consumption according to facial flushing after drinking among Korean men. Methods The subjects were 1,817 Korean men (non-drinker group, 283 men; drinking-related facial flushing group, 662 men; non-flushing group, 872 men) >30 years who had undergone comprehensive health examinations at the health promotion center of a Chungnam National University Hospital between 2007 and 2009. Alcohol consumption and alcohol-related facial flushing were assessed through a questionnaire. Cardiovascular disease risk was investigated based on the 2008 Framingham Heart Study. With the non-drinker group as reference, logistic regression was used to analyze the relationship between weekly alcohol intake and cardiovascular disease risk within 10 years for the flushing and non-flushing groups, with adjustment for confounding factors such as body mass index, diastolic blood pressure, low density lipoprotein cholesterol, triglycerides, and exercise patterns. Results Individuals in the non-flushing group with alcohol consumption of ≤4 standard drinks (1 standard drink = 14 g of alcohol) per week had significantly lower moderate or high cardiovascular disease risk than individuals in the nondrinker group (adjusted odds ratio, 0.51; 95% confidence interval, 0.37 to 0.71). However, no significant relationship between the drinking amount and cardiovascular disease risk was observed in the flushing group. Conclusion Cardiovascular disease risk is likely lowered by alcohol consumption among non-flushers, and the relationship between the drinking amount and cardiovascular disease risk may differ according to facial flushing after drinking, representing an individual's vulnerability.
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Affiliation(s)
- Hae Sun Suh
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jong Sung Kim
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
| | - Sung Soo Kim
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin Gyu Jung
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seok Jun Yoon
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jae Bum Ahn
- Department of Family Medicine, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Korea
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Wang K, Song H, Jin M, Xiao H, Zhao G, Zou H, Yu L. Chronic alcohol consumption from adolescence to adulthood in mice--hypothalamic gene expression changes in insulin-signaling pathway. Alcohol 2014; 48:571-8. [PMID: 25088817 DOI: 10.1016/j.alcohol.2014.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Adolescence is a developmental stage vulnerable to alcohol drinking-related problems, and alcohol exposure during adolescence may lead to long-lasting consequences. The hypothalamus is a key brain region for food and water intake regulation as well as weight control, and is one of the alcohol-sensitive brain regions. However, it is not known what the alcohol effect is on the hypothalamus following adolescent alcohol intake, chronically over adolescent development, at moderate levels. We employed a model of chronic moderate alcohol intake from adolescence to adulthood in mice, and analyzed the effect of alcohol on growth and weight gain, as well as hypothalamic gene expression patterns. The results indicated that chronic alcohol consumption during adolescence, even at moderate levels, led to both a reduction in weight gain in mice, and considerable gene expression changes in the hypothalamus. Pathway analysis and real-time PCR identified the type II diabetes mellitus and the insulin-signaling pathways as being the hypothalamic pathways affected by chronic alcohol. Our findings from the mouse alcohol consumption study therefore serve as a potential warning against alcohol consumption during adolescence, such as in teens and college students.
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Affiliation(s)
- Ke Wang
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China; Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and National Engineering Research Center for Biochip at Shanghai, Shanghai, China; Department of Cardiothoracic Surgery, Shu Guang Hospital Affiliated with the Shanghai Traditional Medicine University, Shanghai, China
| | - Huaiguang Song
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and National Engineering Research Center for Biochip at Shanghai, Shanghai, China
| | - Meilei Jin
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Huasheng Xiao
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and National Engineering Research Center for Biochip at Shanghai, Shanghai, China
| | - Guoping Zhao
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China; State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences and Institute of Biomedical Sciences, Fudan University, Shanghai, China; Department of Microbiology and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China.
| | - Hong Zou
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China; State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences and Institute of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Lei Yu
- Department of Genetics & Center of Alcohol Studies, Rutgers University, 607 Allison Road, Piscataway, NJ 08854, USA.
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Lymphocyte oxidative stress/genotoxic effects are related to serum IgG and IgA levels in coke oven workers. ScientificWorldJournal 2014; 2014:801346. [PMID: 25136686 PMCID: PMC4129152 DOI: 10.1155/2014/801346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 06/07/2014] [Accepted: 06/09/2014] [Indexed: 11/24/2022] Open
Abstract
We investigated oxidative stress/genotoxic effects levels, immunoglobulin levels, polycyclic aromatic hydrocarbons (PAHs) levels exposed in 126 coke oven workers and in 78 control subjects, and evaluated the association between oxidative stress/genotoxic effects levels and immunoglobulin levels. Significant differences were observed in biomarkers, including 1-hydroxypyrene levels, employment time, percentages of alcohol drinkers, MDA, 8-OHdG levels, CTL levels and CTM, MN, CA frequency, and IgG, IgA levels between the control and exposed groups. Slightly higher 1-OHP levels in smoking users were observed. For the dose-response relationship of IgG, IgA, IgM, and IgE by 1-OHP, each one percentage increase in urinary 1-OHP generates a 0.109%, 0.472%, 0.051%, and 0.067% decrease in control group and generates a 0.312%, 0.538%, 0.062%, and 0.071% decrease in exposed group, respectively. Except for age, alcohol and smoking status, IgM, and IgE, a significant correlation in urinary 1-OHP and other biomarkers in the total population was observed. Additionally, a significant negative correlation in genotoxic/oxidative damage biomarkers of MDA, 8-OH-dG, CTL levels, and immunoglobins of IgG and IgA levels, especially in coke oven workers, was found. These data suggest that oxidative stress/DNA damage induced by PAHs may play a role in toxic responses for PAHs in immunological functions.
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Galicia-Moreno M, Gutiérrez-Reyes G. Papel del estrés oxidativo en el desarrollo de la enfermedad hepática alcohólica. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2014; 79:135-44. [DOI: 10.1016/j.rgmx.2014.03.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/19/2014] [Accepted: 03/26/2014] [Indexed: 12/23/2022]
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Galicia-Moreno M, Gutiérrez-Reyes G. The role of oxidative stress in the development of alcoholic liver disease. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2014. [DOI: 10.1016/j.rgmxen.2014.06.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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70
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Yu C, Mei XT, Zheng YP, Xu DH. Zn(II)-curcumin protects against hemorheological alterations, oxidative stress and liver injury in a rat model of acute alcoholism. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:729-737. [PMID: 24607687 DOI: 10.1016/j.etap.2014.02.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 02/09/2014] [Accepted: 02/12/2014] [Indexed: 06/03/2023]
Abstract
Curcumin can chelate metal ions, forming metallocomplexes. We compared the effects of Zn(II)-curcumin with curcumin against hemorheological alterations, oxidative stress and liver injury in a rat model of acute alcoholism. Oral administration of Zn(II)-curcumin dose-dependently prevented the ethanol-induced elevation of serum malondialdehyde (MDA) content and reductions in glutathione level and superoxide dismutase (SOD) activity. Zn(II)-curcumin also inhibited ethanol-induced liver injury. Additionally, Zn(II)-curcumin dose-dependently inhibited hemorheological abnormalities, including the ethanol-induced elevation of whole blood viscosity, plasma viscosity, blood viscosity at corrected hematocrit (45%), erythrocyte aggregation index, erythrocyte rigidity index and hematocrit. Compared to curcumin at the same dose, Zn(II)-curcumin more effectively elevated SOD activity, ameliorated liver injury and improved hemorheological variables. These results suggest that Zn(II)-curcumin protected the rats from ethanol-induced liver injury and hemorheological abnormalities via the synergistic effect of curcumin and zinc.
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Affiliation(s)
- Chuan Yu
- Laboratory of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Xue-Ting Mei
- Laboratory of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Yan-Ping Zheng
- Laboratory of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Dong-Hui Xu
- Laboratory of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
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Ishigami T, Yamamoto R, Nagasawa Y, Isaka Y, Rakugi H, Iseki K, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K, Kurahashi I, Ohashi Y, Moriyama T, Watanabe T. An association between serum γ-glutamyltransferase and proteinuria in drinkers and non-drinkers: a Japanese nationwide cross-sectional survey. Clin Exp Nephrol 2014; 18:899-910. [PMID: 24493465 DOI: 10.1007/s10157-014-0938-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 01/16/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND The association between alcohol consumption and chronic kidney disease (CKD), characterized by reduced glomerular filtration rate and proteinuria, is controversial. Recent studies suggest that serum γ-glutamyltransferase (GGT) level, a conventional marker of excessive alcohol consumption, predicts the CKD incidence. Little information is available on the difference in the clinical impact of alcohol consumption and GGT on proteinuria. METHODS The present cross-sectional survey included 332,296 Japanese people aged ≥40 years in 2008. To examine the associations of GGT and alcohol consumption with proteinuria, 134,600 men and 197,696 women were classified into 20 categories based on GGT quartiles and alcohol consumption categories, and their prevalence rate ratios (PRR) of proteinuria defined as ≥1+ of dipstick urinary protein were calculated after adjusting for clinically relevant factors. RESULTS Prevalence of proteinuria was 7.5 and 3.7 % in men and women, respectively. In both gender an association between alcohol consumption and proteinuria was in a J-shaped fashion with the lowest PRR of mild drinkers with ≤19 g/day of ethanol consumption, whereas an association between serum GGT level and proteinuria was linear. Compared with rare drinkers in the lowest GGT quartile, the subjects in higher GGT quartiles had a higher probability of proteinuria, irrespective of alcohol consumption. An optimal cutoff level of serum GGT was 43.6 and 23.2 IU/L in men and women, respectively. CONCLUSIONS The subjects with higher serum GGT level had a higher probability of proteinuria, regardless of alcohol consumption, suggesting that GGT has a clinically greater impact on CKD than alcohol consumption.
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Affiliation(s)
- Toshihiro Ishigami
- Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, 2-2-B6 Yamadaoka, Suita, 565-0871, Japan
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72
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Wackernah RC, Minnick MJ, Clapp P. Alcohol use disorder: pathophysiology, effects, and pharmacologic options for treatment. Subst Abuse Rehabil 2014; 5:1-12. [PMID: 24648792 PMCID: PMC3931699 DOI: 10.2147/sar.s37907] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Alcohol use disorders (AUD) continue to be a concerning health issue worldwide. Harmful alcohol use leads to 2.5 million deaths annually worldwide. Multiple options exist for the management of dependence on alcohol, not all of which are approved by drug-regulating agencies. Current practice in treating AUD does not reflect the diversity of pharmacologic options that have potential to provide benefit, and guidance for clinicians is limited. Few medications are approved for treatment of AUD, and these have exhibited small and/or inconsistent effects in broad patient populations with diverse drinking patterns. The need for continued research into the treatment of this disease is evident in order to provide patients with more specific and effective options. This review describes the neurobiological mechanisms of AUD that are amenable to treatment and drug therapies that target pathophysiological conditions of AUD to reduce drinking. In addition, current literature on pharmacologic (both approved and non-approved) treatment options for AUD offered in the United States and elsewhere are reviewed. The aim is to inform clinicians regarding the options for alcohol abuse treatment, keeping in mind that not all treatments are completely successful in reducing craving or heavy drinking or increasing abstinence.
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Affiliation(s)
- Robin C Wackernah
- Department of Pharmacy Practice, School of Pharmacy, Rueckert-Hartman College for Health Professions, Regis University, Denver, CO, USA
| | - Matthew J Minnick
- Department of Pharmacy Practice, School of Pharmacy, Rueckert-Hartman College for Health Professions, Regis University, Denver, CO, USA
| | - Peter Clapp
- Department of Pharmaceutical Sciences, School of Pharmacy, Rueckert-Hartman College for Health Professions, Regis University, Denver, CO, USA
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Bioactivation to an aldehyde metabolite—Possible role in the onset of toxicity induced by the anti-HIV drug abacavir. Toxicol Lett 2014; 224:416-23. [DOI: 10.1016/j.toxlet.2013.10.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/25/2013] [Accepted: 10/28/2013] [Indexed: 12/20/2022]
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74
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Uemura T, Tanaka Y, Higashi K, Miyamori D, Takasaka T, Nagano T, Toida T, Yoshimoto K, Igarashi K, Ikegaya H. Acetaldehyde-induced cytotoxicity involves induction of spermine oxidase at the transcriptional level. Toxicology 2013; 310:1-7. [PMID: 23707493 DOI: 10.1016/j.tox.2013.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 05/05/2013] [Accepted: 05/15/2013] [Indexed: 01/08/2023]
Abstract
Ethanol consumption causes serious liver injury including cirrhosis and hepatocellular carcinoma. Ethanol is metabolized mainly in the liver to acetic acid through acetaldehyde. We investigated the effect of ethanol and acetaldehyde on polyamine metabolism since polyamines are essential factors for normal cellular functions. We found that acetaldehyde induced spermine oxidase (SMO) at the transcriptional level in HepG2 cells. The levels and activities of ornithine decarboxylase (ODC) and spermidine/spermine acetyltransferase (SSAT) were not affected by acetaldehyde. Spermidine content was increased and spermine content was decreased by acetaldehyde treatment. Knockdown of SMO expression using siRNA reduced acetaldehyde toxicity. Acetaldehyde exposure increased free acrolein levels. An increase of acrolein by acetaldehyde was SMO dependent. Our results indicate that cytotoxicity of acetaldehyde involves, at least in part, oxidation of spermine to spermidine by SMO, which is induced by acetaldehyde.
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Affiliation(s)
- Takeshi Uemura
- Department of Forensic Medicine, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
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75
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Hu C, Ge F, Hyodo E, Arai K, Iwata S, Lobdell H, Walewski JL, Zhou S, Clugston RD, Jiang H, Zizola CP, Bharadwaj KG, Blaner WS, Homma S, Schulze PC, Goldberg IJ, Berk PD. Chronic ethanol consumption increases cardiomyocyte fatty acid uptake and decreases ventricular contractile function in C57BL/6J mice. J Mol Cell Cardiol 2013; 59:30-40. [PMID: 23422163 PMCID: PMC3647020 DOI: 10.1016/j.yjmcc.2013.02.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 02/01/2013] [Accepted: 02/02/2013] [Indexed: 02/07/2023]
Abstract
Alcohol, a major cause of human cardiomyopathy, decreases cardiac contractility in both animals and man. However, key features of alcohol-related human heart disease are not consistently reproduced in animal models. Accordingly, we studied cardiac histology, contractile function, cardiomyocyte long chain fatty acid (LCFA) uptake, and gene expression in male C57BL/6J mice consuming 0, 10, 14, or 18% ethanol in drinking water for 3months. At sacrifice, all EtOH groups had mildly decreased body and increased heart weights, dose-dependent increases in cardiac triglycerides and a marked increase in cardiac fatty acid ethyl esters. [(3)H]-oleic acid uptake kinetics demonstrated increased facilitated cardiomyocyte LCFA uptake, associated with increased expression of genes encoding the LCFA transporters CD36 and Slc27a1 (FATP1) in EtOH-fed animals. Although SCD-1 expression was increased, lipidomic analysis did not indicate significantly increased de novo LCFA synthesis. By echocardiography, ejection fraction (EF) and the related fractional shortening (FS) of left ventricular diameter during systole were reduced and negatively correlated with cardiac triglycerides. Expression of myocardial PGC-1α and multiple downstream target genes in the oxidative phosphorylation pathway, including several in the electron transport and ATP synthase complexes of the inner mitochondrial membrane, were down-regulated. Cardiac ATP was correspondingly reduced. The data suggest that decreased expression of PGC-1α and its target genes result in decreased cardiac ATP levels, which may explain the decrease in myocardial contractile function caused by chronic EtOH intake. This model recapitulates important features of human alcoholic cardiomyopathy and illustrates a potentially important pathophysiologic link between cardiac lipid metabolism and function.
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Affiliation(s)
- Chunguang Hu
- The Department of Medicine, Division of Digestive & Liver Disease, Columbia University College of Physicians & Surgeons, New York, NY 10032, USA
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76
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Wang Q, Zhou S, Wang L, Lei M, Wang Y, Miao C, Jin Y. ALDH2 rs671 Polymorphism and coronary heart disease risk among Asian populations: a meta-analysis and meta-regression. DNA Cell Biol 2013; 32:393-9. [PMID: 23697560 DOI: 10.1089/dna.2013.1995] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Mitochondrial aldehyde dehydrogenase-2 (ALDH2) is the principal enzyme involved in alcohol metabolism in humans. Emerging evidence has shown that the common rs671 G>A (Glu504Lys) polymorphism in the ALDH2 gene might play a critical role in increasing the susceptibility to coronary heart disease (CHD), including myocardial infarction (MI); however, individually published studies showed inconclusive results. This meta-analysis aimed to derive a more precise estimation of the relationship between the ALDH2 rs671 polymorphism and its influence on the susceptibility to CHD and MI. Nine case-control studies were included with a total of 7358 subjects, including 1961 CHD patients, 1040 MI patients, and 4357 healthy controls. Our meta-analysis results showed that the A variant of the ALDH2 rs671 polymorphism may be associated with increase risks of CHD (odds ratios [OR]=1.36, 95% confidence interval [CI]=1.06-1.75, p=0.017) and MI (OR=1.64, 95% CI=1.22-2.20, p=0.001). Univariate and multivariate meta-regression analyses showed no potential factors explained heterogeneity. No publication bias was detected in this meta-analysis. In conclusion, the current meta-analysis indicates that the A variant of the ALDH2 rs671 polymorphism may increase the risk of both CHD and MI among Asian populations.
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Affiliation(s)
- Qi Wang
- Department of Cardiology, The Fourth Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
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77
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Monitoring abacavir bioactivation in humans: Screening for an aldehyde metabolite. Toxicol Lett 2013; 219:59-64. [DOI: 10.1016/j.toxlet.2013.02.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 02/21/2013] [Accepted: 02/23/2013] [Indexed: 11/19/2022]
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78
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Charneira C, Grilo NM, Pereira SA, Godinho ALA, Monteiro EC, Marques MM, Antunes AMM. N-terminal valine adduct from the anti-HIV drug abacavir in rat haemoglobin as evidence for abacavir metabolism to a reactive aldehyde in vivo. Br J Pharmacol 2013; 167:1353-61. [PMID: 22725138 DOI: 10.1111/j.1476-5381.2012.02079.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE The aim of this study was to obtain evidence for the activation of the nucleoside reverse transcriptase inhibitor abacavir to reactive aldehyde metabolites in vivo. Protein haptenation by these reactive metabolites may be a factor in abacavir-induced toxic events. EXPERIMENTAL APPROACH The formation of N-terminal valine adducts from the abacavir-derived aldehydes was investigated in the haemoglobin of Wistar rats treated with eight daily doses (120 mg·kg(-1)) of abacavir. The analyses were conducted by high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry upon comparison with synthetic standards. KEY RESULTS An N-terminal valine haemoglobin adduct derived from an α,β-unsaturated aldehyde metabolite of abacavir was identified in vivo for the first time. CONCLUSIONS AND IMPLICATIONS This preliminary work on abacavir metabolism provides the first unequivocal evidence for the formation of an α,β-unsaturated aldehyde metabolite in vivo and of its ability to form haptens with proteins. The methodology described herein can be used to assess the formation of this metabolite in human samples and has the potential to become a valuable pharmacological tool for mechanistic studies of abacavir toxicity. In fact, the simplicity of the method suggests that the abacavir adduct with the N-terminal valine of haemoglobin could be used to investigate abacavir-induced toxicity for accurate risk/benefit estimations.
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Affiliation(s)
- C Charneira
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisboa, Portugal
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Walker RK, Cousins VM, Umoh NA, Jeffress MA, Taghipour D, Al-Rubaiee M, Haddad GE. The good, the bad, and the ugly with alcohol use and abuse on the heart. Alcohol Clin Exp Res 2013; 37:1253-60. [PMID: 23527963 DOI: 10.1111/acer.12109] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 12/11/2012] [Indexed: 01/30/2023]
Abstract
Since its advent, alcohol has been utilized throughout history socially, for rituals, worship, and for its therapeutic, antibacterial, and analgesic properties. In moderation, alcohol consumption and its use are generally viewed as clinically beneficial. Excessive alcohol consumption on the other hand has been recognized as having several adverse implications. Excessive use increases the risk of liver and heart disease, metabolic disturbances, nutritional deficiencies, certain cancers, brain damage, dementia, neuropathy, as well as other facets of morbidity and mortality. This review targets the sequelae of alcohol consumption on the heart, specifically on myocardial contractility, calcium channel signaling, and intracellular signaling pathways. With the incidence of alcohol-induced cardiac abnormalities being higher than previously thought, it is of increasing importance to elucidate the mechanisms behind them. Here, the cardiac effects of alcohol were not discussed in isolation but in conjunction with other important factors, such as high- and low-density lipoprotein levels and vascular dilatory influences. We explore these mechanisms, in particular, the oxidative stress as the major contributor, as well as pathways that may prove to be cardioprotective. As such, we demonstrate the involvement of nuclear factor (erythroid-derived 2)-like 2 (NFE2L2/NRF2) as well as AKT that act as regulators of oxidative balance during oxidative stress responses. Thus, alcohol consumption may confer a cardioprotective effect when used in moderation through an AKT/NRF2-dependent mechanism.
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Affiliation(s)
- Robin K Walker
- Department of Physiology & Biophysics, College of Medicine, Howard University, Washington, DC 20059, USA
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Tahir M, Rehman MU, Lateef A, Khan R, Khan AQ, Qamar W, Ali F, O'Hamiza O, Sultana S. Diosmin protects against ethanol-induced hepatic injury via alleviation of inflammation and regulation of TNF-α and NF-κB activation. Alcohol 2013; 47:131-9. [PMID: 23419394 DOI: 10.1016/j.alcohol.2012.12.010] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 12/17/2012] [Accepted: 12/20/2012] [Indexed: 12/20/2022]
Abstract
The present investigation was designed to evaluate the efficacy of diosmin against ethanol-induced hepatotoxicity in rats by modulating various mechanisms including ethanol metabolizing enzymes, generation of free radicals, imbalance in oxidant-antioxidant status, oxidative damage to membrane lipids, activation of transcription factors and elevation in inflammatory markers involved in ethanol-induced hepatic damage. Diosmin is a flavone glycoside, having anti-inflammatory and anti-cancer properties. Thirty female Wistar rats segregated in five groups, each with six animals. Group I as control followed by Group II, III and IV were treated with ethanol for 28 days. While groups III and IV were administered with diosmin at 10 mg/kg b wt (D1) and 20 mg/kg b wt (D2) respectively prior to ethanol administration. Group V was given only higher dose of diosmin. In ethanol-treated group, ethanol metabolizing enzymes viz., CYP 450 2E1 and alcohol dehydrogenase (ADH) significantly increased by 77.82% and 32.32% in liver tissues respectively as compared with control group and this enhancement is significantly normalized with diosmin administration. Diosmin administration (D1 & D2) significantly (p < 0.001) attenuates oxidative stress markers i.e., LPO, GSH, GPx, GR and XO by 90.77 & 137.55%, 17.18 & 25%, 37.3 & 49.86%, 21.63 & 44.9% and 56.14 &77.19% respectively. Serum ALT, AST and LDH significantly increased by 102.03, 116.91 and 45.20% in ethanol-treated group as compared with control group. Group III and IV animals showed significant reduction in the serum toxicity markers. Diosmin further alleviated ethanol-induced NF-κB activation, enhanced expression of TNF-α, COX-2 and iNOS. Findings from the present study permit us to conclude that diosmin alleviates alcoholic liver injury via modulating ethanol metabolizing pathway, inhibition of oxidative stress markers and suppression of inflammatory markers. This may represent a novel protective strategy against ethanol-induced liver diseases.
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Rutter AV, Chippendale TWE, Yang Y, Španěl P, Smith D, Sulé-Suso J. Quantification by SIFT-MS of acetaldehyde released by lung cells in a 3D model. Analyst 2013; 138:91-5. [DOI: 10.1039/c2an36185j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Romanowicz-Makowska H, Smolarz B, Gajęcka M, Kiwerska K, Rydzanicz M, Kaczmarczyk D, Olszewski J, Szyfter K, Błasiak J, Morawiec-Sztandera A. Polymorphism of the DNA repair genes RAD51 and XRCC2 in smoking- and drinking-related laryngeal cancer in a Polish population. Arch Med Sci 2012; 8:1065-75. [PMID: 23319983 PMCID: PMC3542498 DOI: 10.5114/aoms.2012.32417] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 05/25/2011] [Accepted: 07/17/2011] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Cigarette smoke and alcohol can generate reactive oxygen species, which may induce DNA double-strand breaks (DSBs), the most serious DNA lesion. In humans, DSBs are repaired mainly by non-homologous end joining and homologous recombination repair (HRR). Several polymorphisms in the DNA repair gene have been extensively studied in the association with various human cancers. In the present work we investigated the association between polymorphisms of two HRR genes, XRCC2 and RAD51, and tobacco- and alcohol-related larynx cancer in a Polish population. MATERIAL AND METHODS Two polymorphisms of the XRCC2 gene, -41657C > T (rs718282) and 31479G > A (rs3218536), as well as one polymorphism of the RAD51 gene, -135G > C (rs1801320), were investigated by PCR-RFLP in 253 patients with larynx cancer and 253 age- and sex-matched non-cancer controls. RESULTS Analysis of the gene-smoking and -drinking interactions revealed a weak association between larynx cancer and the -41657C > T polymorphisms of the XRCC2 gene among the moderate alcohol drinkers. The C allele of the -135G > C polymorphism of RAD51 increased cancer risk in the smoker group. Increased risk was also found for heavy drinkers. Additionally, there were no significant differences between distributions of genotypes in subgroups assigned to different TNM stages and grades. CONCLUSIONS The results indicated that the -135G > C polymorphism of the RAD51 gene may be associated with smoking- and drinking-related larynx cancer in Poland.
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Affiliation(s)
- Hanna Romanowicz-Makowska
- Laboratory of Molecular Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Lodz, Poland
| | - Beata Smolarz
- Laboratory of Molecular Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Lodz, Poland
| | - Marzena Gajęcka
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | | | | | | | - Jurek Olszewski
- Department of Otolaryngology, Medical University of Lodz, Poland
| | - Krzysztof Szyfter
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Janusz Błasiak
- Department of Molecular Genetics, University of Lodz, Poland
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83
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Park JH, Kim SJ, Hwang I, Bae KC, Bae JH, Song DK. Green Tea Extract Co-administered with a Polymer Effectively Prevents Alcoholic Liver Damage by Prolonged Inhibition of Alcohol Absorption in Mice. Alcohol Alcohol 2012; 48:59-67. [DOI: 10.1093/alcalc/ags118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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84
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Pruznak AM, Nystrom J, Lang CH. Direct central nervous system effect of alcohol alters synthesis and degradation of skeletal muscle protein. Alcohol Alcohol 2012; 48:138-45. [PMID: 23079499 DOI: 10.1093/alcalc/ags113] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIMS Alcohol can directly impair protein synthesis in cultured myocytes as well as in in situ perfused skeletal muscle. However, alcohol in the general circulation diffuses rapidly into the central nervous system (CNS). Therefore, this study determined whether localized elevation of alcohol within the CNS is capable of decreasing muscle protein synthesis. METHODS Conscious unstrained male rats received a continuous intracerebroventricular (ICV) infusion of ethanol and skeletal muscle protein synthesis and degradation were assessed. RESULTS ICV alcohol decreased protein synthesis in the gastrocnemius after 6 and 24 h, compared with the time-matched controls. The reduction was equivalent for both sarcoplasmic and myofibrillar proteins and was reversible. The inhibitory effect of alcohol was not prevented by the catalase inhibitor 3-amino-1,2,4-triazole and was mimicked by ICV-administered t-butanol. The alcohol-induced decrease in muscle protein synthesis was associated with a concomitant reduction in phosphorylation of 4E-binding protein and ribosomal S6 kinase-1, suggesting impaired mammalian target of rapamycin kinase activity. ICV alcohol also impaired the ability of leucine to stimulate protein synthesis. Conversely, ICV alcohol increased muscle proteasome activity and muscle RING-finger protein-1 mRNA content. Altered muscle protein metabolism was not associated with changes in muscle mRNA content for tumor necrosis factor α, interleukin-6 or insulin-like growth factor (IGF)-I or circulating insulin or IGF-I. CONCLUSION Selective elevation of alcohol within the CNS is capable of decreasing protein synthesis and increasing protein degradation in muscle in the absence of alcohol in the general circulation, thus revealing a previously unrecognized central neural mechanism, which may account for part of the inhibitory effect of ingested alcohol on muscle protein homeostasis.
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Affiliation(s)
- Anne M Pruznak
- Department of Cellular & Molecular Physiology, Pennsylvania State College of Medicine, Hershey, PA 17033, USA
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85
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Anderson EJ, Katunga LA, Willis MS. Mitochondria as a source and target of lipid peroxidation products in healthy and diseased heart. Clin Exp Pharmacol Physiol 2012; 39:179-93. [PMID: 22066679 DOI: 10.1111/j.1440-1681.2011.05641.x] [Citation(s) in RCA: 289] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The heart is a highly oxidative organ in which cardiomyocyte turnover is virtually absent, making it particularly vulnerable to accumulation of lipid peroxidation products (LPP) formed as a result of oxidative damage. Reactive oxygen and nitrogen species are the most common electrophiles formed during lipid peroxidation and lead to the formation of both stable and unstable LPP. Of the LPP formed, highly reactive aldehydes are a well-recognized causative factor in ageing and age-associated diseases, including cardiovascular disease and diabetes. Recent studies have identified that the mitochondria are both a primary source and target of LPP, with specific emphasis on aldehydes in cardiomyocytes and how these affect the electron transport system and Ca(2+) balance. Numerous studies have found that there are functional consequences in the heart following exposure to specific aldehydes (acrolein, trans-2-hexanal, 4-hydroxynonenal and acetaldehyde). Because these LPP are known to form in heart failure, cardiac ischaemia-reperfusion injury and diabetes, they may have an underappreciated role in the pathophysiology of these disease processes. Lipid peroxidation products are involved in the transcriptional regulation of endogenous anti-oxidant systems. Recent evidence demonstrates that transient increases in LPP may be beneficial in cardioprotection by contributing to mitohormesis (i.e. induction of anti-oxidant systems) in cardiomyocytes. Thus, exploitation of the cardioprotective actions of the LPP may represent a novel therapeutic strategy for future treatment of heart disease.
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Affiliation(s)
- Ethan J Anderson
- Department of Medicine, Pathology & Laboratory Medicine, 111 Mason Farm Road, 2340BMBRB,Chapel Hill, NC 27599–7525, USA
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86
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Carnevale R, Nocella C. Alcohol and cardiovascular disease: Still unresolved underlying mechanisms. Vascul Pharmacol 2012; 57:69-71. [DOI: 10.1016/j.vph.2012.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 06/08/2012] [Accepted: 06/27/2012] [Indexed: 11/30/2022]
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87
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Bae KY, Kim SW, Shin HY, Kim JM, Shin IS, Kim SJ, Kim JK, Yoon JS. The acute effects of ethanol and acetaldehyde on physiological responses after ethanol ingestion in young healthy men with different ALDH2 genotypes. Clin Toxicol (Phila) 2012; 50:242-9. [PMID: 22455355 DOI: 10.3109/15563650.2012.672743] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND This study investigated the acute effects of ethanol and acetaldehyde on physiological responses in healthy men according to ALDH2 genotype by measuring them directly in human blood. METHODS Twenty-four men, 12 with the ALDH2*1/*1 genotype and 12 with the ALDH2*1/*2 genotype, were selected. In a double-blind placebo-controlled crossover design, each subject was administered one of three doses of ethanol (0.25, 0.5 or 0.75 g/kg) or a placebo on four separate occasions. The blood ethanol concentration (BEC), blood acetaldehyde concentration (BAAC) and physiological responses including facial redness, pulse rate and systolic and diastolic blood pressures were assessed. RESULTS Significant differences were observed in the physiological responses between the ALDH2*1/*2 and ALDH2*1/*1 groups. Significant gene effects were observed for pulse rate and facial flushing (F-values =62.344; p values <0.001 and F-values =7.062; p values =0.010, respectively, by repeated-measures analysis of variance), which were significantly greater in subjects with the ALDH2*1/*2 genotype. In a linear regression analysis, BAAC significantly predicted increased facial redness at 30 minutes (adjusted R( 2 ): 0.209; p values <0.001) and pulse rate at 30, 60, 90 and 120 minutes (adjusted R( 2 ): 0.454, 0.490, 0.428 and 0.193, respectively; all p values <0.001), whereas BEC was not associated with any physiological response measure at any time. CONCLUSIONS Facial redness and pulse rate after ethanol ingestion were significantly higher in the ALDH2*1/*2 genotype, and were significantly associated with blood acetaldehyde concentrations. The acute effects of ethanol on the physiological responses were mediated mainly by acetaldehyde, the active metabolite of ethanol, rather than by ethanol itself.
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Affiliation(s)
- Kyung-Yeol Bae
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
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88
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Guo R, Hu N, Kandadi MR, Ren J. Facilitated ethanol metabolism promotes cardiomyocyte contractile dysfunction through autophagy in murine hearts. Autophagy 2012; 8:593-608. [PMID: 22441020 PMCID: PMC3405837 DOI: 10.4161/auto.18997] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chronic drinking leads to myocardial contractile dysfunction where ethanol metabolism plays an essential role. Acetaldehyde, the main ethanol metabolite, mediates alcohol-induced cell injury although the underlying mechanism is still elusive. This study was designed to examine the mechanism involved in accelerated ethanol metabolism-induced cardiac defect with a focus on autophagy. Wild-type FVB and cardiac-specific overexpression of alcohol dehydrogenase mice were placed on a 4% nutrition-balanced alcohol diet for 8 weeks. Myocardial histology, immunohistochemistry, autophagy markers and signal molecules were examined. Expression of micro RNA miR-30a, a potential target of Beclin 1, was evaluated by real-time PCR. Chronic alcohol intake led to cardiac acetaldehyde accumulation, hypertrophy and overt autophagosome accumulation (LC3-II and Atg7), the effect of which was accentuated by ADH. Signaling molecules governing autophagy initiation including class III PtdIns3K, phosphorylation of mTOR and p70S6K were enhanced and dampened, respectively, following alcohol intake. These alcohol-induced signaling responses were augmented by ADH. ADH accentuated or unmasked alcohol-induced downregulation of Bcl-2, Bcl-xL and MiR-30a. Interestingly, ADH aggravated alcohol-induced p62 accumulation. Autophagy inhibition using 3-MA abolished alcohol-induced cardiomyocyte contractile anomalies. Moreover, acetaldehyde led to cardiomyocyte contractile dysfunction and autophagy induction, which was ablated by 3-MA. Ethanol or acetaldehyde increased GFP-LC3 puncta in H9c2 cells, the effect of which was ablated by 3-MA but unaffected by lysosomal inhibition using bafilomycin A(1), E64D and pepstatin A. In summary, these data suggested that facilitated acetaldehyde production via ADH following alcohol intake triggered cardiac autophagosome formation along with impaired lysosomal degradation, en route to myocardial defect.
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Affiliation(s)
- Rui Guo
- Center for Cardiovascular Research and Alternative Medicine; University of Wyoming College of Health Sciences; Laramie, WY USA
| | - Nan Hu
- Center for Cardiovascular Research and Alternative Medicine; University of Wyoming College of Health Sciences; Laramie, WY USA
| | - Machender R. Kandadi
- Center for Cardiovascular Research and Alternative Medicine; University of Wyoming College of Health Sciences; Laramie, WY USA
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine; University of Wyoming College of Health Sciences; Laramie, WY USA
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89
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Aroor AR, Mandavia C, Ren J, Sowers JR, Pulakat L. Mitochondria and Oxidative Stress in the Cardiorenal Metabolic Syndrome. Cardiorenal Med 2012; 2:87-109. [PMID: 22619657 DOI: 10.1159/000335675] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 12/08/2011] [Indexed: 12/16/2022] Open
Abstract
Mitochondria play a fundamental role in the maintenance of normal structure, function, and survival of tissues. There is considerable evidence for mitochondrial dysfunction in association with metabolic diseases including insulin resistance, obesity, diabetes, and the cardiorenal metabolic syndrome. The phenomenon of reactive oxygen species (ROS)-induced ROS release through interactions between cytosolic and mitochondrial oxidative stress contributes to a vicious cycle of enhanced oxidative stress and mitochondrial dysfunction. Activation of the cytosolic and mitochondrial NADPH oxidase system, impairment of the mitochondrial electron transport, activation of p66shc pathway-targeting mitochondria, endoplasmic reticular stress, and activation of the mammalian target of the rapamycin-S6 kinase pathway underlie dysregulation of mitochondrial dynamics and promote mitochondrial oxidative stress. These processes are further modulated by acetyltransferases including sirtuin 1 and sirtuin 3, the former regulating nuclear acetylation and the latter regulating mitochondrial acetylation. The regulation of mitochondrial functions by microRNAs forms an additional layer of molecular control of mitochondrial oxidative stress. Alcohol further exacerbates mitochondrial oxidative stress induced by overnutrition and promotes the development of metabolic diseases.
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Affiliation(s)
- Annayya R Aroor
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo., USA
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90
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Foltran F, Gregori D, Franchin L, Verduci E, Giovannini M. Effect of alcohol consumption in prenatal life, childhood, and adolescence on child development. Nutr Rev 2012; 69:642-59. [PMID: 22029831 DOI: 10.1111/j.1753-4887.2011.00417.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The effects of alcohol consumption in adults are well described in the literature, while knowledge about the effects of alcohol consumption in children is more limited and less systematic. The present review shows how alcohol consumption may negatively influence the neurobiological and neurobehavioral development of humans. Three different periods of life have been considered: the prenatal term, childhood, and adolescence. For each period, evidence of the short-term and long-term effects of alcohol consumption, including neurodevelopmental effects and associations with subsequent alcohol abuse or dependence, is presented.
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Affiliation(s)
- Francesca Foltran
- Laboratories of Epidemiological Methods and Biostatistics, Department of Environmental Medicine and Public Health, University of Padova, Padova, Italy
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91
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Pavanello S, Snenghi R, Nalesso A, Sartore D, Ferrara SD, Montisci M. Alcohol drinking, mean corpuscular volume of erythrocytes, and alcohol metabolic genotypes in drunk drivers. Alcohol 2012; 46:61-8. [PMID: 21917409 DOI: 10.1016/j.alcohol.2011.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 08/08/2011] [Accepted: 08/19/2011] [Indexed: 02/09/2023]
Abstract
Regular and irregular abuse of alcohol are global health priorities associated with diseases at multiple sites, including cancer. Mechanisms of diseases induced by alcohol are closely related to its metabolism. Among conventional markers of alcohol abuse, the mean corpuscular volume (MCV) of erythrocytes is prognostic of alcohol-related cancer and its predictivity increases when combined with functional polymorphisms of alcohol dehydrogenase (ADH1B [rs1229984] and ADH1C [rs698]) and the mitochondrial aldehyde dehydrogenase (ALDH2 [rs671]). Whether these genetic variants can influence abuse in alcohol drinking and MCV has never been examined in drunk-driving traffic offenders. We examined 149 drunk drivers, diagnosed as alcohol abusers according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth edition Text Revision (DSM-IV-TR) and enrolled in a probation program, and 257 social drinkers (controls), all Caucasian males. Alcohol intake was assessed according to self-reported drink-units/d and MCV unadjusted and adjusted for age, smoking, and body mass index. Multivariable models were used to compute MCV adjusted means. Genotype analyses were performed by PCR on DNA from blood. The adjusted MCV mean was higher in drunk-driving abusers than in controls (92 vs. 91fL; P<.0001) and increased with the number of drink-units/d in both abusers and controls (P-trend=.0316 and .0089) already at intermediate quantities (0-1 vs. 2-4 drink-units/d: P=.054 and .024). Carriers of the common ADH1B*1/*1 (rs1229984) genotype were more likely to be drunk-driving abusers (P=.008), reported higher drink-units/d (P=.0126), and had larger MCV (P=.035). The rs698 ADH1C and rs671 ALDH2 polymorphisms were not associated with MCV. ADH1B*1/*1 polymorphism is significantly associated with being a drunk-driving abuser, higher alcohol drinking, and MCV enlargement. This suggests that drunk drivers with augmented MCV modulated by the alcohol metabolic ADH1B*1/*1 genotype may be at higher risk of driving incapability and of alcohol-related cancer.
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92
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Razzak AA, Oxentenko AS, Vierkant RA, Tillmans LS, Wang AH, Weisenberger DJ, Laird PW, Lynch CF, Anderson KE, French AJ, Haile RW, Harnack LJ, Slager SL, Smyrk TC, Thibodeau SN, Cerhan JR, Limburg PJ. Alcohol intake and colorectal cancer risk by molecularly defined subtypes in a prospective study of older women. Cancer Prev Res (Phila) 2011; 4:2035-43. [PMID: 21900595 PMCID: PMC3584678 DOI: 10.1158/1940-6207.capr-11-0276] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Increased alcohol consumption is a putative colorectal cancer (CRC) risk factor. However, existing data are less conclusive for women than men. Also, to date, relatively few studies have reported alcohol-related CRC risks based on molecularly defined tumor subtypes. We evaluated associations between alcohol intake and incident CRC, overall and by microsatellite instability [MSI high (MSI-H) or MSI low/microsatellite stable (MSI-L/MSS)], CpG island methylator phenotype (CIMP positive or CIMP negative), and BRAF mutation (mutated or wild-type) status in the prospective, population-based Iowa Women's Health Study (IWHS; n = 41,836). Subjects were 55 to 69 years at baseline (1986), and exposure data were obtained by self-report. Incident CRCs were prospectively identified and archived, paraffin-embedded tissue specimens were collected from 732 representative cases, diagnosed through December 31, 2002. Multivariate Cox regression models were fit to estimate relative risks (RR) and 95% confidence intervals (CI). Among alcohol consumers, the median intake (range) was 3.4 (0.9-292.8) g/d. Compared with nonconsumers, alcohol intake levels of 3.4 g/d or less (RR = 1.00; 95% CI, 0.86-1.15) and more than 3.4 g/d (RR = 1.06; 95% CI, 0.91-1.24) were not significantly associated with overall CRC risk. Analyses based on alcohol intake levels of 30 g/d or less and more than 30 g/d or quartile distributions yielded similar risk estimates. Null associations were also observed between each alcohol intake level and the MSI-, CIMP- or, BRAF-defined CRC subtypes (P > 0.05 for each comparison). These data do not support an adverse effect from alcohol intake on CRC risk, overall or by specific molecularly defined subtypes, among older women.
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Affiliation(s)
| | | | - Robert A. Vierkant
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN
| | - Lori S. Tillmans
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN
| | - Alice H. Wang
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN
| | | | | | | | | | - Amy J. French
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN
| | - Robert W. Haile
- Department of Preventive Medicine, USC Keck School of Medicine, Los Angeles, CA
| | - Lisa J. Harnack
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Susan L. Slager
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN
| | - Thomas C. Smyrk
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN
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93
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Charneira C, Godinho ALA, Oliveira MC, Pereira SA, Monteiro EC, Marques MM, Antunes AMM. Reactive Aldehyde Metabolites from the Anti-HIV Drug Abacavir: Amino Acid Adducts as Possible Factors in Abacavir Toxicity. Chem Res Toxicol 2011; 24:2129-41. [DOI: 10.1021/tx200337b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Catarina Charneira
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
| | - Ana L. A. Godinho
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
| | - M. Conceição Oliveira
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
| | - Sofia A. Pereira
- Centro de Estudos de Doenças Crónicas (CEDOC), Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal
| | - Emília C. Monteiro
- Centro de Estudos de Doenças Crónicas (CEDOC), Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal
| | - M. Matilde Marques
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
| | - Alexandra M. M. Antunes
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
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94
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Reidy J, McHugh E, Stassen L. A review of the relationship between alcohol and oral cancer. Surgeon 2011; 9:278-83. [DOI: 10.1016/j.surge.2011.01.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Accepted: 01/23/2011] [Indexed: 12/23/2022]
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95
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Zhang Y, Ren J. ALDH2 in alcoholic heart diseases: molecular mechanism and clinical implications. Pharmacol Ther 2011; 132:86-95. [PMID: 21664374 DOI: 10.1016/j.pharmthera.2011.05.008] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 05/13/2011] [Indexed: 01/12/2023]
Abstract
Alcoholic cardiomyopathy is manifested as cardiac hypertrophy, disrupted contractile function and myofibrillary architecture. An ample amount of clinical and experimental evidence has depicted a pivotal role for alcohol metabolism especially the main alcohol metabolic product acetaldehyde, in the pathogenesis of this myopathic state. Findings from our group and others have revealed that the mitochondrial isoform of aldehyde dehydrogenase (ALDH2), which metabolizes acetaldehyde, governs the detoxification of acetaldehyde formed following alcohol consumption and the ultimate elimination of alcohol from the body. The ALDH2 enzymatic cascade may evolve as a unique detoxification mechanism for environmental alcohols and aldehydes to alleviate the undesired cardiac anomalies in ischemia-reperfusion and alcoholism. Polymorphic variants of the ALDH2 gene encode enzymes with altered pharmacokinetic properties and a significantly higher prevalence of cardiovascular diseases associated with alcoholism. The pathophysiological effects of ALDH2 polymorphism may be mediated by accumulation of acetaldehyde and other reactive aldehydes. Inheritance of the inactive ALDH2*2 gene product is associated with a decreased risk of alcoholism but an increased risk of alcoholic complications. This association is influenced by gene-environment interactions such as those associated with religion and national origin. The purpose of this review is to recapitulate the pathogenesis of alcoholic cardiomyopathy with a special focus on ALDH2 enzymatic metabolism. It will be important to dissect the links between ALDH2 polymorphism and prevalence of alcoholic cardiomyopathy, in order to determine the mechanisms underlying such associations. The therapeutic value of ALDH2 as both target and tool in the management of alcoholic tissue damage will be discussed.
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Affiliation(s)
- Yingmei Zhang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
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96
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Sena MCP, Nunes FC, Salvadori MGSS, Carvalho CCD, Morais LCSL, Braga VA. Chronic consumption of distilled sugarcane spirit induces anxiolytic-like effects in mice. Clinics (Sao Paulo) 2011; 66:873-8. [PMID: 21789394 PMCID: PMC3109389 DOI: 10.1590/s1807-59322011000500026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 02/04/2011] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Chronic ethanol consumption is a major public health problem throughout the world. We investigated the anxiolytic-like effects and the possible ever injury induced by the chronic consumption of ethanol or sugarcane spirit in mice. METHOD Adult mice were exposed to a two-bottle free-choice paradigm for 6 weeks. The mice in Group A (n = 16) had access to sugarcane spirit + distilled water, the mice in Group B (n = 15) had access to ethanol + distilled water, and the mice in Group C (control, n = 14) had access to distilled water + distilled water. The ethanol content in the beverages offered to Groups A and B was 2% for the first week, 5% for the second week and 10% for the remaining four weeks. At the end of the experimental period, the mice were evaluated using the elevated-plus maze and the hole-board test to assess their anxiety-related behaviors. We also determined the serum aspartate aminotransferase and alanine aminotransferase levels. RESULTS In the elevated-plus maze, the time spent in the open arms was increased in the mice exposed to chronic ethanol (32 ± 8 vs. 7 ± 2 s, n = 9) or sugarcane spirit (36 ± 9 vs. 7 ± 2 s, n = 9) compared to the controls. In the hole-board test, the mice exposed to ethanol or sugarcane spirit displayed increases in their head-dipping frequency (16 ± 1 for the control group, 27 ± 2 for the ethanol group, and 31 ± 3 for the sugarcane-spirit group; n = 9 for each group). In addition, the mice exposed to sugarcane spirit displayed an increase in the aspartate aminotransferase / alanine aminotransferase ratio compared to the ethanol group (1.29 ± 0.17 for the control group and 2.67 ± 0.17 for the sugarcane spirit group; n = 8 for each group). CONCLUSION The chronic consumption of sugarcane-spirit produces liver injury and anxiolytic-like effects and the possible liver injury in mice.
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Affiliation(s)
- Maria Clecia P Sena
- Laboratory of Applied Physiology, Veterinary Sciences Department, Center for Agrarian Sciences, Federal University of Paraíba, Areia, PB, Brazil
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97
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Manzo-Avalos S, Saavedra-Molina A. Cellular and mitochondrial effects of alcohol consumption. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2010; 7:4281-304. [PMID: 21318009 PMCID: PMC3037055 DOI: 10.3390/ijerph7124281] [Citation(s) in RCA: 161] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 12/06/2010] [Accepted: 12/07/2010] [Indexed: 02/06/2023]
Abstract
Alcohol dependence is correlated with a wide spectrum of medical, psychological, behavioral, and social problems. Acute alcohol abuse causes damage to and functional impairment of several organs affecting protein, carbohydrate, and fat metabolism. Mitochondria participate with the conversion of acetaldehyde into acetate and the generation of increased amounts of NADH. Prenatal exposure to ethanol during fetal development induces a wide spectrum of adverse effects in offspring, such as neurologic abnormalities and pre- and post-natal growth retardation. Antioxidant effects have been described due to that alcoholic beverages contain different compounds, such as polyphenols as well as resveratrol. This review analyzes diverse topics on the alcohol consumption effects in several human organs and demonstrates the direct participation of mitochondria as potential target of compounds that can be used to prevent therapies for alcohol abusers.
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Affiliation(s)
- Salvador Manzo-Avalos
- Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio B-3. C.U., 58030 Morelia, Michoacan, Mexico.
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