1
|
Fu Y, Maccioni L, Wang XW, Greten TF, Gao B. Alcohol-associated liver cancer. Hepatology 2024:01515467-990000000-00837. [PMID: 38607725 DOI: 10.1097/hep.0000000000000890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024]
Abstract
Heavy alcohol intake induces a wide spectrum of liver diseases ranging from steatosis, steatohepatitis, cirrhosis, and HCC. Although alcohol consumption is a well-known risk factor for the development, morbidity, and mortality of HCC globally, alcohol-associated hepatocellular carcinoma (A-HCC) is poorly characterized compared to viral hepatitis-associated HCC. Most A-HCCs develop after alcohol-associated cirrhosis (AC), but the direct carcinogenesis from ethanol and its metabolites to A-HCC remains obscure. The differences between A-HCC and HCCs caused by other etiologies have not been well investigated in terms of clinical prognosis, genetic or epigenetic landscape, molecular mechanisms, and heterogeneity. Moreover, there is a huge gap between basic research and clinical practice due to the lack of preclinical models of A-HCC. In the current review, we discuss the pathogenesis, heterogeneity, preclinical approaches, epigenetic, and genetic profiles of A-HCC, and discuss the current insights into and the prospects for future research on A-HCC. The potential effect of alcohol on cholangiocarcinoma and liver metastasis is also discussed.
Collapse
Affiliation(s)
- Yaojie Fu
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Luca Maccioni
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Xin Wei Wang
- Liver Carcinogenesis Section, Laboratory of Human Carcinogenesis, National Cancer Institute, NIH, Bethesda, Maryland, USA
- Liver Cancer Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Tim F Greten
- Liver Cancer Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
- Gastrointestinal Malignancies Section, Thoracic and Gastrointestinal Malignancies Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| |
Collapse
|
2
|
Wang L, Kranzler HR, Gelernter J, Zhou H. Multi-ancestry Whole-exome Sequencing Study of Alcohol Use Disorder in Two Cohorts. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.04.05.24305412. [PMID: 38645055 PMCID: PMC11030482 DOI: 10.1101/2024.04.05.24305412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Alcohol use disorder (AUD) is a leading cause of death and disability worldwide. There has been substantial progress in identifying genetic variants underlying AUD. However, there are few whole-exome sequencing (WES) studies of AUD. We analyzed WES of 4,530 samples from the Yale-Penn cohort and 469,835 samples from the UK Biobank (UKB). After quality control, 1,420 AUD cases and 619 controls of European ancestry (EUR) and 1,142 cases and 608 controls of African ancestry (AFR) from Yale-Penn were retained for subsequent analyses. WES data from 415,617 EUR samples (12,861 cases), 6,142 AFR samples (130 cases) and 4,607 South Asian (SAS) samples (130 cases) from UKB were also analyzed. Single-variant association analysis identified the well-known functional variant rs1229984 in ADH1B ( P =4.88×10 -31 ) and several other common variants in ADH1C . Gene-based tests identified ADH1B ( P =1.00×10 -31 ), ADH1C ( P =5.23×10 -7 ), CNST ( P =1.19×10 -6 ), and IFIT5 (3.74×10 -6 ). This study extends our understanding of the genetic basis of AUD.
Collapse
|
3
|
Jelenkovic A, Ibáñez-Zamacona ME, Rebato E. Human adaptations to diet: Biological and cultural coevolution. ADVANCES IN GENETICS 2024; 111:117-147. [PMID: 38908898 DOI: 10.1016/bs.adgen.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
Modern humans evolved in Africa some 200,000 years ago, and since then, human populations have expanded and diversified to occupy a broad range of habitats and use different subsistence modes. This has resulted in different adaptations, such as differential responses to diseases and different abilities to digest or tolerate certain foods. The shift from a subsistence strategy based on hunting and gathering during the Palaeolithic to a lifestyle based on the consumption of domesticated animals and plants in the Neolithic can be considered one of the most important dietary transitions of Homo sapiens. In this text, we review four examples of gene-culture coevolution: (i) the persistence of the enzyme lactase after weaning, which allows the digestion of milk in adulthood, related to the emergence of dairy farming during the Neolithic; (ii) the population differences in alcohol susceptibility, in particular the ethanol intolerance of Asian populations due to the increased accumulation of the toxic acetaldehyde, related to the spread of rice domestication; (iii) the maintenance of gluten intolerance (celiac disease) with the subsequent reduced fitness of its sufferers, related to the emergence of agriculture and (iv) the considerable variation in the biosynthetic pathway of long-chain polyunsaturated fatty acids in native populations with extreme diets.
Collapse
Affiliation(s)
- Aline Jelenkovic
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain.
| | - María Eugenia Ibáñez-Zamacona
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Esther Rebato
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| |
Collapse
|
4
|
Pekarska K, Parker R. Alcohol-Related Liver Disease: Is There a Safe Alcohol Consumption Limit for Liver Disease? Semin Liver Dis 2023; 43:305-310. [PMID: 37640063 DOI: 10.1055/s-0043-1772836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
This review is to evaluate how much alcohol is safe in the context of alcohol-related liver disease (ALD). In patients without an established diagnosis of ALD consuming alcohol at quantities below 12 to 20 g daily with alcohol-free days is associated with a very low risk of developing disease. This risk is mediated by the presence of cofactors such as sex, medical comorbidity, obesity, and genetic factors. A threshold effect below which liver disease will not occur is not seen, instead a dose-response relationship where risk ranges from low to high. Once ALD is present, natural history studies confirm that continued alcohol consumption is clearly associated with an increased risk of ill health and premature death. In conclusion, low-level alcohol consumption in the absence of liver disease is associated with a very small risk of developing ALD, but once ALD is present patients should be supported to achieve complete abstinence from alcohol.
Collapse
Affiliation(s)
- Katrina Pekarska
- Leeds Liver Unit, St James's University Hospital, Leeds, West Yorkshire, United Kingdom
| | - Richard Parker
- Leeds Liver Unit, St James's University Hospital, Leeds, West Yorkshire, United Kingdom
| |
Collapse
|
5
|
Ayuso P, García-Martín E, Cornejo-García JA, Agúndez JAG, Ladero JM. Genetic Variants of Alcohol Metabolizing Enzymes and Alcohol-Related Liver Cirrhosis Risk. J Pers Med 2021; 11:jpm11050409. [PMID: 34068303 PMCID: PMC8153263 DOI: 10.3390/jpm11050409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/30/2021] [Accepted: 05/09/2021] [Indexed: 11/25/2022] Open
Abstract
Alcohol-related liver disease (ARLD) is a major public health issue caused by excessive alcohol consumption. ARLD encompasses a wide range of chronic liver lesions, alcohol-related liver cirrhosis being the most severe and harmful state. Variations in the genes encoding the enzymes, which play an active role in ethanol metabolism, might influence alcohol exposure and hence be considered as risk factors of developing cirrhosis. We conducted a case-control study in which 164 alcohol-related liver cirrhosis patients and 272 healthy controls were genotyped for the following functional single nucleotide variations (SNVs): ADH1B gene, rs1229984, rs1041969, rs6413413, and rs2066702; ADH1C gene, rs35385902, rs283413, rs34195308, rs1693482, and rs35719513; CYP2E1 gene, rs3813867. Furthermore, copy number variations (CNVs) for ADH1A, ADH1B, ADH1C, and CYP2E1 genes were analyzed. A significant protective association with the risk of developing alcohol-related liver cirrhosis was observed between the mutant alleles of SNVs ADH1B rs1229984 (Pc value = 0.037) and ADH1C rs283413 (Pc value = 0.037). We identified CNVs in all genes studied, ADH1A gene deletions being more common in alcohol-related liver cirrhosis patients than in control subjects, although the association lost statistical significance after multivariate analyses. Our findings support that susceptibility to alcohol-related liver cirrhosis is related to variations in alcohol metabolism genes.
Collapse
Affiliation(s)
- Pedro Ayuso
- ARADyAL, Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, UEx, 10003 Cáceres, Spain; (E.G.-M.); (J.A.G.A.)
- Correspondence:
| | - Elena García-Martín
- ARADyAL, Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, UEx, 10003 Cáceres, Spain; (E.G.-M.); (J.A.G.A.)
| | - José A. Cornejo-García
- ARADyAL, Instituto de Salud Carlos III Research Laboratory, IBIMA, Regional University Hospital of Málaga, UMA, 29010 Málaga, Spain;
| | - José A. G. Agúndez
- ARADyAL, Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, UEx, 10003 Cáceres, Spain; (E.G.-M.); (J.A.G.A.)
| | - José María Ladero
- Service of Gastroenterology (Liver Unit), Hospital Clínico San Carlos, Universidad Complutense Medical School, 28040 Madrid, Spain;
| |
Collapse
|
6
|
Le Daré B, Ferron PJ, Gicquel T. The Purinergic P2X7 Receptor-NLRP3 Inflammasome Pathway: A New Target in Alcoholic Liver Disease? Int J Mol Sci 2021; 22:2139. [PMID: 33670021 PMCID: PMC7926651 DOI: 10.3390/ijms22042139] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 12/24/2022] Open
Abstract
The World Health Organization has estimated that approximately 3 million deaths are attributable to alcohol consumption each year. Alcohol consumption is notably associated with the development and/or progression of many non-communicable inflammatory diseases-particularly in the liver. Although these alcoholic liver diseases were initially thought to be caused by the toxicity of ethanol on hepatocytes, the latest research indicates Kupffer cells (the liver macrophages) are at the heart of this "inflammatory shift". Purinergic signaling (notably through P2X7 receptors and the NLRP3 inflammasome) by Kupffer cells appears to be a decisive factor in the pathophysiology of alcoholic liver disease. Hence, the modulation of purinergic signaling might represent a new means of treating alcoholic liver disease. Here, we review current knowledge on the pathophysiology of alcoholic liver diseases and therapeutic perspectives for targeting these inflammatory pathways.
Collapse
Affiliation(s)
- Brendan Le Daré
- NuMeCan Institute (Nutrition, Metabolisms and Cancer), INSERM, INRAE, CHU—University Rennes, PREVITOX Network, F-35000 Rennes, France; (B.L.D.); (P.-J.F.)
- Forensic and Toxicology Laboratory, Rennes University Hospital, 2 rue Henri Le Guilloux, F-35033 Rennes, France
| | - Pierre-Jean Ferron
- NuMeCan Institute (Nutrition, Metabolisms and Cancer), INSERM, INRAE, CHU—University Rennes, PREVITOX Network, F-35000 Rennes, France; (B.L.D.); (P.-J.F.)
| | - Thomas Gicquel
- NuMeCan Institute (Nutrition, Metabolisms and Cancer), INSERM, INRAE, CHU—University Rennes, PREVITOX Network, F-35000 Rennes, France; (B.L.D.); (P.-J.F.)
- Forensic and Toxicology Laboratory, Rennes University Hospital, 2 rue Henri Le Guilloux, F-35033 Rennes, France
| |
Collapse
|
7
|
Non-oxidative ethanol metabolism in human hepatic cells in vitro: Involvement of uridine diphospho-glucuronosyltransferase 1A9 in ethylglucuronide production. Toxicol In Vitro 2020; 66:104842. [PMID: 32283135 DOI: 10.1016/j.tiv.2020.104842] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 03/27/2020] [Accepted: 04/02/2020] [Indexed: 12/12/2022]
Abstract
Ethanol is the most frequently psychoactive substance used in the world, leading to major public health problems with several millions of deaths attributed to alcohol consumption each year. Metabolism of ethanol occurs mainly in the liver via the predominant oxidative metabolism pathway involving phase I enzymes including alcohol dehydrogenases (ADH), cytochrome P450 (CYP) 2E1 and catalase. In a lesser extent, an alternative non-oxidative pathway also contributes to the metabolism of ethanol, which involves the uridine diphospho-glucuronosyltransferase (UGT) and sulfotransferase (SULT) phase II enzymes. Using liquid chromatography-high resolution mass spectrometry, ethylglucuronide (EtG) and ethylsulfate (EtS) produced respectively by UGT and SULT conjugation and detected in various biological samples are direct markers of alcohol consumption. We report herein the efficient non-oxidative metabolic pathway of ethanol in human differentiated HepaRG cells compared to primary human hepatocytes (HH). We showed dose- and time-dependent production of EtS and EtG after ethanol (25 or 50 mM) treatment in culture media of differentiated HepaRG cells and HH and a significant induction of CYP2E1 mRNA expression upon acute ethanol exposure in HepaRG cells. These differentiated hepatoma cells thus represent a suitable in vitro human liver cell model to explore ethanol metabolism and more particularly EtG and EtS production. In addition, using recombinant HepG2 cells expressing different UGT1A genes, we found that UGT1A9 was the major UGT involved in ethanol glucuronidation.
Collapse
|
8
|
Seol JE, Kim J, Lee BH, Hwang DY, Jeong J, Lee HJ, Ahn YO, Lee JE, Kim DH. Folate, alcohol, ADH1B and ALDH2 and colorectal cancer risk. Public Health Nutr 2020; 24:1-8. [PMID: 32223781 DOI: 10.1017/s136898001900452x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE There is limited evidence on the interaction by alcohol dehydrogenase 2 (ADH1B) (rs1229984) and aldehyde dehydrogenase 2 (ALDH2) (rs671) regarding the associations of alcohol and a methyl diet (low folate and high alcohol intake) with cancer risk, partly because of rare polymorphisms in Western populations. DESIGN In a case-control study, we estimated the ORs and 95 % CIs to evaluate the associations of ADH1B and ALDH2 genotypes with colorectal cancer (CRC) and the joint association between methyl diets and ADH1B and ALDH2 polymorphisms with CRC risk using logistic regression models. SETTING A hospital-based case-control study. PARTICIPANTS In total, 1001 CRC cases and 899 cancer-free controls admitted to two university hospitals. RESULTS We found that alcohol intake increased the risk of CRC; OR (95 % CI) was 2·02 (1·41, 2·87) for ≥60 g/d drinkers compared with non-drinkers (Ptrend < 0·001). The associations for two polymorphisms with CRC were not statistically significant. However, we found a potential interaction of ALDH2 with methyl diets and CRC. We observed a 9·08-fold (95 % CI 1·93, 42·60) higher risk of CRC for low-methyl diets compared with high-methyl diets among individuals with an A allele of ALDH2, but the association was not apparent among those with ALDH2 GG (Pinteraction = 0·02). CONCLUSIONS Our data support the evidence that gene-methyl diet interactions may be involved in CRC risk in East Asian populations, showing that a low-methyl diet increased the risk of CRC among individuals with an A allele of ALDH2.
Collapse
Affiliation(s)
- Ju Eun Seol
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Gyeonggi-do, South Korea
| | - Bong-Hwa Lee
- Department of General Surgery, Hallym University Sacred Heart Hospital, Chuncheon, Korea
| | - Dae-Yong Hwang
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jinyoung Jeong
- Department of Social and Preventive Medicine, Hallym University, Chuncheon, Korea
| | - Hun-Jae Lee
- Department of Social and Preventive Medicine, Inha University College of Medicine, Incheon, Korea
| | - Yoon-Ok Ahn
- Professor Emeritus, Seoul National University College of Medicine, Seoul, Korea
| | - Jung Eun Lee
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Dong-Hyun Kim
- Department of Social and Preventive Medicine, Hallym University, Chuncheon, Korea
| |
Collapse
|
9
|
Alcohol Metabolizing Enzymes, Microsomal Ethanol Oxidizing System, Cytochrome P450 2E1, Catalase, and Aldehyde Dehydrogenase in Alcohol-Associated Liver Disease. Biomedicines 2020; 8:biomedicines8030050. [PMID: 32143280 PMCID: PMC7148483 DOI: 10.3390/biomedicines8030050] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/20/2020] [Accepted: 02/29/2020] [Indexed: 12/12/2022] Open
Abstract
Once ingested, most of the alcohol is metabolized in the liver by alcohol dehydrogenase to acetaldehyde. Two additional pathways of acetaldehyde generation are by microsomal ethanol oxidizing system (cytochrome P450 2E1) and catalase. Acetaldehyde can form adducts which can interfere with cellular function, leading to alcohol-induced liver injury. The variants of alcohol metabolizing genes encode enzymes with varied kinetic properties and result in the different rate of alcohol elimination and acetaldehyde generation. Allelic variants of these genes with higher enzymatic activity are believed to be able to modify susceptibility to alcohol-induced liver injury; however, the human studies on the association of these variants and alcohol-associated liver disease are inconclusive. In addition to acetaldehyde, the shift in the redox state during alcohol elimination may also link to other pathways resulting in activation of downstream signaling leading to liver injury.
Collapse
|
10
|
Lee YJ, Yoo MG, Kim HK, Jang HB, Park KJ, Lee HJ, Kim SG, Park SI. The association between alcohol metabolism and genetic variants of ADH1A, SRPRB, and PGM1 in Korea. Alcohol 2019; 79:137-145. [PMID: 31002879 DOI: 10.1016/j.alcohol.2019.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 03/20/2019] [Accepted: 03/20/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Excessive alcohol consumption is a major public health problem in East Asian countries. Alcohol use leads to a cascade of problems including increased chances of risky behavior and a wide range of negative health consequences, from alcoholic liver disease to upper gastric and liver cancer. These alcohol effects are known to be influenced by ethnic variability and genetics. METHODS In this study, subjects were administered a single dose of alcohol (0.6 g/kg for men or 0.4 g/kg for women), and blood alcohol and acetaldehyde concentrations were measured eight times over 5 hours. To investigate genetically susceptible factors to alcohol metabolism, we selected single-nucleotide polymorphisms (SNP) of genes identified by prior genetic association studies for alcohol metabolism, alcohol consumption, alcohol dependence, and related traits, and performed genotyping on all subjects (n = 104). RESULTS We identified variations in the ADH1A, SRPRB, and PGM1 genes, which are directly associated with blood alcohol or acetaldehyde concentrations. Namely, the T allele of SRPRB rs17376019 and the C allele of PGM1 rs4643 were associated with lower blood alcohol levels, while the ADH1 rs1229976 C allele group exhibited markedly higher blood acetaldehyde levels than those of the ADH1 rs1229976 T allele group. CONCLUSION This study demonstrates that genetic variations in ADH1A, SRPRB, and PGM1 are associated with variations in blood alcohol and acetaldehyde concentration after alcohol intake.
Collapse
|
11
|
Xu Y, Chen D, Lin XX, Zhao Q, Guo J, Chen LJ, Zhang W, Xiao J, Lian GH, Peng SF, Guo D, Yang H, Obianom O, Shu Y, Chen Y. The LRP6 functional mutation rs2302685 contributes to individual susceptibility to alcoholic liver injury related to the Wnt/β-catenin-TCF1-CYP2E1 signaling pathway. Arch Toxicol 2019; 93:1679-1695. [PMID: 30976847 DOI: 10.1007/s00204-019-02447-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 04/09/2019] [Indexed: 10/27/2022]
Abstract
Low-density lipoprotein receptor-related protein 6 (LRP6) is an important coreceptor in the Wnt/β-catenin upstream signaling pathway. Rs2302685 is a common functional mutation of LRP6 that has been previously associated with reduced alcoholic liver injury among alcoholic liver disease (ALD) patients, and the present research was designed to study the underlying mechanisms of that finding. A total of 107 ALD patients and 138 non-ALD patients were recruited from hospitalized alcoholics in China. Their venous blood samples were collected for DNA extraction and genotyped using Sequenom MassARRAY. We found that the rs2302685 mutation, which impaired the function of LRP6, was present in higher frequency among alcoholics with ALD than those without ALD. We also conducted a mouse model experiment in which LRP6(+/-) knockdown mice and LRP6(+/+) wild-type mice received daily intragastric doses of ethanol (2.4 g/kg) as well as a larger dose of ethanol (4 g/kg) every 7 days for 28 days. The mouse blood and liver specimens were subsequently collected for laboratory analysis, and cell experiments were performed to compare the inhibition, activation, over-expression, and siRNA of LRP6 in the treatment versus the control HL7702 cells. Expression of the targeted molecules was detected by real-time PCR or western blot analysis. Stably transfected cells with pRL3-CYP2E1 vector were used to further study the underlying mechanisms. The total bile acid (TBA), direct bilirubin, total bilirubin (TBIL), aspartate aminotransferase (AST), mitochondrial aspartate aminotransferase, and AST/ALT values were significantly lower in carriers of the rs2302685 mutation than in the wild-type patients, by 63.4, 60.6, 82.1, 44.8, 45.7, and 21.4%, respectively. Compared to the LRP6(+/+) wild-type mice, the LRP6(+/-) knockdown mice had lower ALT, TBIL, TBA, and ALB/GLO values, as well reduced liver tissue damage, in accordance with their reduced expressions of LRP6, β-catenin, and CYP2E1. In HL7702 cells exposed to ethanol, AST, ALT, lipid accumulation, and ROS generation decreased in cells that were treated with LRP6 inhibitors or siRNA but increased in cells treated with LRP6 activators or over-expressed LRP6. TCF1 was the transcriptional factor most likely to connect the LRP6-Wnt/β-catenin signaling pathway to the regulation of CYP2E1. We concluded that the LRP6 functional mutation rs2302685 contributes to individual differences in susceptibility to alcoholic liver injury related to the Wnt/β-catenin-TCF1-CYP2E1 signaling pathway.
Collapse
Affiliation(s)
- Ying Xu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Dan Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Xiu-Xian Lin
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Qing Zhao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Jing Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Li-Jie Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China.,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Jian Xiao
- Department of Hepatology and Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Guang-Hui Lian
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Shi-Fang Peng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Dong Guo
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD, 21201, USA
| | - Hong Yang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD, 21201, USA
| | - Obinna Obianom
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD, 21201, USA
| | - Yan Shu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD, 21201, USA
| | - Yao Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. .,Institute of Clinical Pharmacology, Central South University, Changsha, 410078, Hunan, China. .,Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, People's Republic of China. .,National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China.
| |
Collapse
|
12
|
Li YM, Fan JG. Guidelines of prevention and treatment for alcoholic liver disease (2018, China). J Dig Dis 2019; 20:174-180. [PMID: 30450822 DOI: 10.1111/1751-2980.12687] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/12/2018] [Accepted: 11/15/2018] [Indexed: 12/11/2022]
Affiliation(s)
- You Ming Li
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jian Gao Fan
- Department of Gastroenterology, XinHua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Children's Digestion and Nutrition, Shanghai, China
| | | |
Collapse
|
13
|
Abstract
Apart from the classic knowledge that ethanol mediates its hepatotoxicity through its metabolism to acetaldehyde, a well-known hepatotoxic molecule, recent research has elucidated several key mechanisms that potentiate ethanol's damage to the liver parenchyma, such as generation of free radicals, activation of Kupffer cells, and alterations to the human bacterial and fungal microbiome. Genetic studies have suggested the role of PNPLA3 and TM6SF2 gene mutations in the progression of alcoholic liver disease.
Collapse
Affiliation(s)
- Themistoklis Kourkoumpetis
- Department of Gastroenterology, Baylor College of Medicine, 6620 Main Street, Suite 1450, Houston, TX 77030, USA
| | - Gagan Sood
- Department of Surgery, Division of Abdominal Transplantation, Baylor College of Medicine, 6620 Main Street, Suite 1450, Houston, TX 77030, USA.
| |
Collapse
|
14
|
Edenberg HJ, McClintick JN. Alcohol Dehydrogenases, Aldehyde Dehydrogenases, and Alcohol Use Disorders: A Critical Review. Alcohol Clin Exp Res 2018; 42:2281-2297. [PMID: 30320893 PMCID: PMC6286250 DOI: 10.1111/acer.13904] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/07/2018] [Indexed: 12/20/2022]
Abstract
Alcohol use disorders (AUDs) are complex traits, meaning that variations in many genes contribute to the risk, as does the environment. Although the total genetic contribution to risk is substantial, most individual variations make only very small contributions. By far the strongest contributors are functional variations in 2 genes involved in alcohol (ethanol [EtOH]) metabolism. A functional variant in alcohol dehydrogenase 1B (ADH1B) is protective in people of European and Asian descent, and a different functional variant in the same gene is protective in those of African descent. A strongly protective variant in aldehyde dehydrogenase 2 (ALDH2) is essentially only found in Asians. This highlights the need to study a wide range of populations. The likely mechanism of protection against heavy drinking and AUDs in both cases is alteration in the rate of metabolism of EtOH that at least transiently elevates acetaldehyde. Other ADH and ALDH variants, including functional variations in ADH1C, have also been implicated in affecting drinking behavior and risk for alcoholism. The pattern of linkage disequilibrium in the ADH region and the differences among populations complicate analyses, particularly of regulatory variants. This critical review focuses upon the ADH and ALDH genes as they affect AUDs.
Collapse
Affiliation(s)
- Howard J. Edenberg
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN
| | - Jeanette N. McClintick
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN
| |
Collapse
|
15
|
Zhang S, Wu H, Zhou H, Liang L. Association of alcohol dehydrogenase 1C gene *1/*2 polymorphism with alcohol Dependence(AD) in Turkey: A meta-analysis. Neurosci Lett 2018; 671:66-69. [PMID: 29438797 DOI: 10.1016/j.neulet.2018.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 01/28/2018] [Accepted: 02/07/2018] [Indexed: 12/11/2022]
Abstract
Previous studies have investigated the association between ADH1C *1/*2 polymorphism and alcohol dependence (AD), but have yielded controversial results in Turkey. Therefore, in an effort to illustrate whether ADH1C *1/*2 polymorphism is associated with AD risk in Turkish population, we used meta analysis to synthetically evaluate the effect of ADH1C *1/*2 polymorphism on AD. Publications were identified by searching in PubMed and EMBASE databases. Four eligible studies involving 400 controls and 421 cases were included in this study. Overall, there is a significant association between ADH1C *1/*2 polymorphism and AD risk in the allelic model (OR = 1.66, 95% CI = 1.05-2.62, P = 0.03) and recessive model (OR = 1.72, 95% CI = 1.14-2.58, P = 0.01), while no significance was discovered in the dominant genetic model, homozygote model and heterozygotemodel. No publication bias was indicated from Begg's and Egger's test. Our meta-analysis results suggested that a potential relationship between ADH1C *1/*2 polymorphism and AD risk in Turkish population. Further studies are confirmed to resolve this question about the etiological mechanisms of the correlation.
Collapse
Affiliation(s)
- Shiying Zhang
- Department of Pathology, Renmin Hospital of Wuhan University, Hubei Zhang Road (formerly Ziyang Road), Wuchang District No. 99 Jiefang Road 238, Wuhan, Hubei province, China
| | - Hao Wu
- Department of Pathology, Renmin Hospital of Wuhan University, Hubei Zhang Road (formerly Ziyang Road), Wuchang District No. 99 Jiefang Road 238, Wuhan, Hubei province, China
| | - Heng Zhou
- Department of Pathology, Renmin Hospital of Wuhan University, Hubei Zhang Road (formerly Ziyang Road), Wuchang District No. 99 Jiefang Road 238, Wuhan, Hubei province, China
| | - Liang Liang
- Department of Pathology, Renmin Hospital of Wuhan University, Hubei Zhang Road (formerly Ziyang Road), Wuchang District No. 99 Jiefang Road 238, Wuhan, Hubei province, China.
| |
Collapse
|
16
|
Chang B, Hao S, Zhang L, Gao M, Sun Y, Huang A, Teng G, Li B, Crabb DW, Kusumanchi P, Wang L, Liangpunsakul S, Zou Z. Association Between Aldehyde Dehydrogenase 2 Glu504Lys Polymorphism and Alcoholic Liver Disease. Am J Med Sci 2018; 356:10-14. [PMID: 29779728 DOI: 10.1016/j.amjms.2018.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 03/17/2018] [Accepted: 03/19/2018] [Indexed: 01/18/2023]
Abstract
BACKGROUND Only a subset of patients with excessive alcohol use develop alcoholic liver disease (ALD), though the exact mechanism is not completely understood. Once ingested, alcohol is metabolized by 2 key oxidative enzymes, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH). There are 2 major ALDH isoforms, cytosolic and mitochondrial, encoded by the aldehyde ALDH1 and ALDH2 genes, respectively. The ALDH2 gene was hypothesized to alter genetic susceptibility to alcohol dependence and alcohol-induced liver diseases. The aim of this study is to determine the association between aldehyde dehydrogenase 2 (rs671) glu504lys polymorphism and ALD. METHODS ALDH2 genotyping was performed in 535 healthy controls and 281 patients with ALD. RESULTS The prevalence of the common form of the single nucleotide polymorphism rs671, 504glu (glu/glu) was significantly higher in patients with ALD (95.4%) compared to that of controls (73.7%, P < 0.0001). Among controls, 23.7% had the heterozygous (glu/lys) genotype compared to 4.6% in those with ALD (odds ratio [OR] = 0.16, 95% CI: 0.09-0.28). The allele frequency for 504lys allele in patients with ALD was 2.3%, compared to 14.5% in healthy controls (OR = 0.13, 95% CI: 0.07-0.24). CONCLUSIONS Patients with ALDH2 504lys variant were less associated with ALD compared to those with ALDH2 504glu using both genotypic and allelic analyses.
Collapse
Affiliation(s)
- Binxia Chang
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Shuli Hao
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Longyu Zhang
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Miaomiao Gao
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Ying Sun
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Ang Huang
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Guangju Teng
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - Baosen Li
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China
| | - David W Crabb
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana; Eskenazi Health, Indianapolis, Indiana
| | - Praveen Kusumanchi
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Li Wang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut; Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Suthat Liangpunsakul
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana; Roudebush Veterans Administration Medical Center, Indianapolis, Indiana.
| | - Zhengsheng Zou
- The Center for Diagnosis and Treatment of Noninfectious Liver Disease, Institute of Alcoholic Liver Disease, Beijing, China.
| |
Collapse
|
17
|
First description and evaluation of SNPs in the ADH and ALDH genes in a population of alcoholics in Central-West Brazil. Alcohol 2017; 65:37-43. [PMID: 29084628 DOI: 10.1016/j.alcohol.2017.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 11/23/2022]
Abstract
Worldwide, different studies have reported an association of alcohol-use disorder (AUD) with different types of Single Nucleotide Polymorphisms (SNPs) in the genes for aldehyde dehydrogenase (ALDH) and alcohol dehydrogenase (ADH). In Brazil, there is little information about the occurrence of these SNPs in the AUD population and an absence of studies characterizing the population in the Central-West Region of Brazil. Actually, in Brazil, there are more than 4 million people with AUD. Despite the major health hazards of AUD, information on alcohol consumption and its consequences are not well understood. Therefore, it is extremely important to characterize these SNPs for the better understanding of AUD as a genetic disease in the Brazilian population. The present study, unlike other studies in other countries, is done with a subject population that shows a significant amount of racial homogenization. We evaluated the presence of SNPs in the ADH (ADH1B, ADH1C, and ADH4) and ALDH (ALDH2) genes in alcohol users of Goiânia, State of Goiás - Brazil, and then we established a possible relationship with AUD by allelic and genotypic study. This study was conducted with a population of people with AUD (n = 99) from Goiás Alcohol Dependence Recovery Center (GO CEREA) and Psychosocial Care Center for Alcohol and Drugs (CAPS AD), and with a population of people without AUD as controls (n = 100). DNA was extracted from whole-blood samples and the genotyping was performed using TaqMan® SNP genotyping assays. For characterization and evaluation of SNPs in the population, genotype frequency, allele frequency, haplotype frequency, Hardy-Weinberg equilibrium, and linkage disequilibrium were analyzed. Statistical analyses were calculated by GENEPOP 4.5 and Haploview software. The allele 1 was considered as "wild" (or *1) and allele 2 as mutant (or *2). Significant differences were found for ADH1B*, ADH4*2, and ALDH2*2 SNPs when the genotype and allele frequencies were analyzed. In addition, four haplotypes were observed between ADH1B*2 and ADH1C*2 through linkage disequilibrium analysis. The genetic variants may be associated with protection against AUD in the population studied.
Collapse
|
18
|
Ramadori P, Cubero FJ, Liedtke C, Trautwein C, Nevzorova YA. Alcohol and Hepatocellular Carcinoma: Adding Fuel to the Flame. Cancers (Basel) 2017; 9:cancers9100130. [PMID: 28946672 PMCID: PMC5664069 DOI: 10.3390/cancers9100130] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/15/2017] [Accepted: 09/19/2017] [Indexed: 02/06/2023] Open
Abstract
Primary tumors of the liver represent the fifth most common type of cancer in the world and the third leading cause of cancer-related death. Case-control studies from different countries report that chronic ethanol consumption is associated with an approximately 2-fold increased odds ratio for hepatocellular carcinoma (HCC). Despite the substantial epidemiologic data in humans demonstrating that chronic alcohol consumption is a major risk factor for HCC development, the pathways causing alcohol-induced liver cancer are poorly understood. In this overview, we summarize the epidemiological evidence for the association between alcohol and liver cancer, review the genetic, oncogenic, and epigenetic factors that drive HCC development synergistically with ethanol intake and discuss the essential molecular and metabolic pathways involved in alcohol-induced liver tumorigenesis.
Collapse
Affiliation(s)
- Pierluigi Ramadori
- Department of Internal Medicine III, University Hospital RWTH Aachen, Pauwelsstrasse 30, D-52074 Aachen, Germany.
| | - Francisco Javier Cubero
- Department of Immunology, Complutense University School of Medicine, Madrid 28040, Spain.
- 13 de Octubre Health Research Institute (imas12), Madrid 28041, Spain.
| | - Christian Liedtke
- Department of Internal Medicine III, University Hospital RWTH Aachen, Pauwelsstrasse 30, D-52074 Aachen, Germany.
| | - Christian Trautwein
- Department of Internal Medicine III, University Hospital RWTH Aachen, Pauwelsstrasse 30, D-52074 Aachen, Germany.
| | - Yulia A Nevzorova
- Department of Internal Medicine III, University Hospital RWTH Aachen, Pauwelsstrasse 30, D-52074 Aachen, Germany.
- Department of Animal Physiology II, Faculty of Biology, Complutense University, Madrid 28040, Spain.
| |
Collapse
|
19
|
Treutlein J, Frank J, Streit F, Reinbold CS, Juraeva D, Degenhardt F, Rietschel L, Witt SH, Forstner AJ, Ridinger M, Strohmaier J, Wodarz N, Dukal H, Foo JC, Hoffmann P, Herms S, Heilmann-Heimbach S, Soyka M, Maier W, Gaebel W, Dahmen N, Scherbaum N, Müller-Myhsok B, Lucae S, Ising M, Stickel F, Berg T, Roggenbuck U, Jöckel KH, Scholz H, Zimmermann US, Buch S, Sommer WH, Spanagel R, Brors B, Cichon S, Mann K, Kiefer F, Hampe J, Rosendahl J, Nöthen MM, Rietschel M. Genetic Contribution to Alcohol Dependence: Investigation of a Heterogeneous German Sample of Individuals with Alcohol Dependence, Chronic Alcoholic Pancreatitis, and Alcohol-Related Cirrhosis. Genes (Basel) 2017; 8:E183. [PMID: 28714907 PMCID: PMC5541316 DOI: 10.3390/genes8070183] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 07/11/2017] [Indexed: 01/14/2023] Open
Abstract
The present study investigated the genetic contribution to alcohol dependence (AD) using genome-wide association data from three German samples. These comprised patients with: (i) AD; (ii) chronic alcoholic pancreatitis (ACP); and (iii) alcohol-related liver cirrhosis (ALC). Single marker, gene-based, and pathway analyses were conducted. A significant association was detected for the ADH1B locus in a gene-based approach (puncorrected = 1.2 × 10-6; pcorrected = 0.020). This was driven by the AD subsample. No association with ADH1B was found in the combined ACP + ALC sample. On first inspection, this seems surprising, since ADH1B is a robustly replicated risk gene for AD and may therefore be expected to be associated also with subgroups of AD patients. The negative finding in the ACP + ALC sample, however, may reflect genetic stratification as well as random fluctuation of allele frequencies in the cases and controls, demonstrating the importance of large samples in which the phenotype is well assessed.
Collapse
Affiliation(s)
- Jens Treutlein
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Josef Frank
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Céline S Reinbold
- Human Genomics Research Group, Department of Biomedicine, University and University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Medical Genetics and Pathology, University Hospital Basel, 4031 Basel, Switzerland.
| | - Dilafruz Juraeva
- Division of Applied Bioinformatics (G200), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
| | - Liz Rietschel
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, 3000 Bern 60, Switzerland.
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Andreas J Forstner
- Human Genomics Research Group, Department of Biomedicine, University and University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Medical Genetics and Pathology, University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
- Department of Psychiatry (U.P.K.), University of Basel, CH-4002 Basel, Switzerland.
| | - Monika Ridinger
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany.
- Psychiatric Health Care Aargau, 5210 Windisch, Switzerland.
| | - Jana Strohmaier
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Norbert Wodarz
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany.
| | - Helene Dukal
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Jerome C Foo
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Per Hoffmann
- Human Genomics Research Group, Department of Biomedicine, University and University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Medical Genetics and Pathology, University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
| | - Stefan Herms
- Human Genomics Research Group, Department of Biomedicine, University and University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Medical Genetics and Pathology, University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
| | - Stefanie Heilmann-Heimbach
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
| | - Michael Soyka
- Private Hospital Meiringen, 3860 Meiringen, Switzerland.
- Psychiatric Hospital, Ludwig Maximilians University, 80336 Munich, Germany.
| | - Wolfgang Maier
- Department of Psychiatry, University of Bonn, 53105 Bonn, Germany.
| | - Wolfgang Gaebel
- Department of Psychiatry and Psychotherapy, University of Düsseldorf, 40629 Düsseldorf, Germany.
| | - Norbert Dahmen
- Department of Psychiatry, University of Mainz, 55131 Mainz, Germany.
| | - Norbert Scherbaum
- LVR-Hospital Essen, Department of Psychiatry and Psychotherapy, Medical Faculty, University of Duisburg-Essen, 45147 Essen, Germany.
| | - Bertram Müller-Myhsok
- Department of Statistical Genetics, Max-Planck-Institute of Psychiatry, 80804 Munich, Germany.
| | - Susanne Lucae
- Department of Psychiatric Pharmacogenetics, Max-Planck-Institute of Psychiatry, 80804 Munich, Germany.
| | - Marcus Ising
- Department of Molecular Psychology, Max-Planck-Institute of Psychiatry, 80804 Munich, Germany.
| | - Felix Stickel
- Department of Gastroenterology and Hepatology, University Hospital of Zurich, 8091 Zurich, Switzerland.
- Hirslanden Private Hospital, 8032 Hirslanden Zürich, Switzerland.
| | - Thomas Berg
- Section of Hepatology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Ulla Roggenbuck
- Institute for Medical Informatics, Biometry, and Epidemiology, University Hospital of Essen, 45122 Essen, Germany.
| | - Karl-Heinz Jöckel
- Institute for Medical Informatics, Biometry, and Epidemiology, University Hospital of Essen, 45122 Essen, Germany.
| | - Henrike Scholz
- Department of Animal Physiology, University of Cologne, 50674 Cologne, Germany.
| | - Ulrich S Zimmermann
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Dresden Technical University, 01307 Dresden, Germany.
| | - Stephan Buch
- Medical Department 1, University Hospital Dresden, TU Dresden, 01307 Dresden, Germany.
| | - Wolfgang H Sommer
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Benedikt Brors
- Division of Applied Bioinformatics (G200), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
| | - Sven Cichon
- Human Genomics Research Group, Department of Biomedicine, University and University Hospital Basel, 4031 Basel, Switzerland.
- Institute of Medical Genetics and Pathology, University Hospital Basel, 4031 Basel, Switzerland.
| | - Karl Mann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| | - Jochen Hampe
- Medical Department 1, University Hospital Dresden, TU Dresden, 01307 Dresden, Germany.
| | - Jonas Rosendahl
- Department of Internal Medicine I, Martin Luther University Halle, 06120 Halle (Saale), Germany.
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, 53127 Bonn, Germany.
- Department of Genomics, Life & Brain Center, University of Bonn, 53127 Bonn, Germany.
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68159 Mannheim, Germany.
| |
Collapse
|
20
|
Liangpunsakul S, Haber P, McCaughan G. Alcoholic Liver Disease in Asia, Europe, and North America. Gastroenterology 2016; 150:1786-97. [PMID: 26924091 PMCID: PMC4887319 DOI: 10.1053/j.gastro.2016.02.043] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/05/2016] [Accepted: 02/09/2016] [Indexed: 12/16/2022]
Abstract
Alcoholic liver diseases comprise a spectrum of clinical disorders and changes in liver tissue that can be detected by pathology analysis. These range from steatosis to more severe signs and symptoms of liver disease associated with inflammation, such as those observed in patients with alcoholic hepatitis or cirrhosis. Although the relationship between alcohol consumption and liver disease is well established, severe alcohol-related morbidities develop in only a minority of people who consume alcohol in excess. Inter-individual differences in susceptibility to the toxic effects of alcohol have been studied extensively-they include pattern of alcohol consumption, sex, environmental factors (such as diet), and genetic factors, which vary widely among different parts of the world. Alcoholic liver disease is becoming more common in many parts of Asia, but is decreasing in Western Europe. Treatment approaches, including availability of medications, models of care, and approach to transplantation, differ among regions.
Collapse
Affiliation(s)
- Suthat Liangpunsakul
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Roudebush Veterans Administration Medical Center, Indianapolis, Indiana.
| | | | | |
Collapse
|
21
|
Anstee QM, Seth D, Day CP. Genetic Factors That Affect Risk of Alcoholic and Nonalcoholic Fatty Liver Disease. Gastroenterology 2016; 150:1728-1744.e7. [PMID: 26873399 DOI: 10.1053/j.gastro.2016.01.037] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/17/2016] [Accepted: 01/20/2016] [Indexed: 02/07/2023]
Abstract
Genome-wide association studies and candidate gene studies have informed our understanding of factors contributing to the well-recognized interindividual variation in the progression and outcomes of alcoholic liver disease and nonalcoholic fatty liver disease. We discuss the mounting evidence for shared modifiers and common pathophysiological processes that contribute to development of both diseases. We discuss the functions of proteins encoded by risk variants of genes including patatin-like phospholipase domain-containing 3 and transmembrane 6 superfamily member 2, as well as epigenetic factors that contribute to the pathogenesis of alcoholic liver disease and nonalcoholic fatty liver disease. We also discuss important areas of future genetic research and their potential to affect clinical management of patients.
Collapse
Affiliation(s)
- Quentin M Anstee
- Liver Research Group, Institute of Cellular Medicine, The Medical School, Newcastle University, Newcastle-upon-Tyne, United Kingdom.
| | - Devanshi Seth
- Centenary Institute of Cancer Medicine, Royal Prince Alfred Hospital, Camperdown, Australia; Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia; Central Clinical School, The University of Sydney, Camperdown, Australia
| | - Christopher P Day
- Liver Research Group, Institute of Cellular Medicine, The Medical School, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| |
Collapse
|
22
|
Malejko K, Graf H, Gahr M. Survival of Very High Blood Alcohol Concentration Without Consequential Damage in a Patient Without a Previous Substance Use Disorder. J Forensic Sci 2016; 61:1155-1157. [PMID: 27364303 DOI: 10.1111/1556-4029.13082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/10/2015] [Accepted: 09/20/2015] [Indexed: 11/29/2022]
Abstract
Intoxications with alcohol may lead to death depending on (maximum) blood alcohol concentration (BAC) and accompanying factors such as liver function, tolerance, and comedication. Death may occur due to ethanol-induced respiratory depression and/or aspiration of gastric content (due to an impaired gag reflex); thus, securing of the airway and ventilation is occasionally necessary. A case of a 58-year-old female patient with depression who demonstrated a very high BAC of 8.68 gm/L (0.868%) following ingestion of large amounts of alcohol with suicidal intent is presented. Intubation and ventilation were life-saving, and the patient did not develop any physical or consequential damage. As the patient had not regularly used alcohol or any other psychotropic agent, tolerance could be ruled out. This case emphasizes the necessity of rapid securing of the airway in patients with alcohol intoxication and respiratory depression and, furthermore, illustrates the large interindividual differences regarding ethanol susceptibility.
Collapse
Affiliation(s)
- Kathrin Malejko
- Department of Psychiatry and Psychotherapy III, Ulm University, Leimgrubenweg 12-14, 89075, Ulm, Germany
| | - Heiko Graf
- Department of Psychiatry and Psychotherapy III, Ulm University, Leimgrubenweg 12-14, 89075, Ulm, Germany
| | - Maximilian Gahr
- Department of Psychiatry and Psychotherapy III, Ulm University, Leimgrubenweg 12-14, 89075, Ulm, Germany
| |
Collapse
|
23
|
Peng GS, Chen YC, Wang MF, Lai CL, Yin SJ. ALDH2*2 but not ADH1B*2 is a causative variant gene allele for Asian alcohol flushing after a low-dose challenge: correlation of the pharmacokinetic and pharmacodynamic findings. Pharmacogenet Genomics 2015; 24:607-17. [PMID: 25365528 DOI: 10.1097/fpc.0000000000000096] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE It has been well documented that variant alleles of both ADH1B*2 of alcohol dehydrogenase (ADH) and ALDH2*2 of aldehyde dehydrogenase (ALDH) protect against the development of alcoholism in East Asians. However, it remains unclear whether ADH1B*2 contributes significantly toward the accumulation of systemic blood acetaldehyde and whether it plays a critical role in the alcohol flushing reaction. PARTICIPANTS AND METHODS Sixty-one adult Han Chinese men were recruited and divided into six combinatorial genotypic groups: ALDH2*1/*1-ADH1B*1/*1 (12), ALDH2*1/*1-ADH1B*1/*2 (11), ALDH2*1/*1-ADH1B*2/*2 (11); ALDH2*1/*2-ADH1B*1/*1 (9), ALDH2*1/*2-ADH1B*1/*2 (9), and ALDH2*1/*2-ADH1B*2/*2 (9). After ingesting 0.3 g/kg of alcohol, blood ethanol, acetaldehyde, and acetate concentrations, as well as the facial skin blood flow (FSBF) and pulse rate were measured for 130 min. RESULTS The ALDH2*1/*2 heterozygotes carrying three ADH1B allelotypes showed significantly higher peak levels and areas under the concentration curve (AUCs) of the blood acetaldehyde as well as significantly greater increases in the peak pulse rate and peak FSBF compared with the ALDH2*1/*1 homozygotes. However, no significant differences in peak levels and AUCs of blood ethanol, acetaldehyde or acetate, or the peak cardiovascular responses, were found between the ADH1B allelotypes carrying ALDH2*1/*1 or between those with ALDH2*1/*2. Partial correlation analyses showed that peak blood acetaldehyde, rather than the blood ethanol or acetate, was correlated significantly with the peak responses of pulse rate and FSBF. CONCLUSION Findings indicate that ALDH2*2, rather than ADH1B2*2, is a causal variant allele for the accumulation of blood acetaldehyde and the resultant facial flushing during low alcohol consumption.
Collapse
Affiliation(s)
- Giia-Sheun Peng
- aDepartment of Neurology, Tri-Service General Hospital bDepartment of Biochemistry, National Defense Medical Center, Taipei cDepartment of Psychiatry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City dDepartment of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | | | | | | | | |
Collapse
|
24
|
Bühler KM, Giné E, Echeverry-Alzate V, Calleja-Conde J, de Fonseca FR, López-Moreno JA. Common single nucleotide variants underlying drug addiction: more than a decade of research. Addict Biol 2015; 20:845-71. [PMID: 25603899 DOI: 10.1111/adb.12204] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Drug-related phenotypes are common complex and highly heritable traits. In the last few years, candidate gene (CGAS) and genome-wide association studies (GWAS) have identified a huge number of single nucleotide polymorphisms (SNPs) associated with drug use, abuse or dependence, mainly related to alcohol or nicotine. Nevertheless, few of these associations have been replicated in independent studies. The aim of this study was to provide a review of the SNPs that have been most significantly associated with alcohol-, nicotine-, cannabis- and cocaine-related phenotypes in humans between the years of 2000 and 2012. To this end, we selected CGAS, GWAS, family-based association and case-only studies published in peer-reviewed international scientific journals (using the PubMed/MEDLINE and Addiction GWAS Resource databases) in which a significant association was reported. A total of 371 studies fit the search criteria. We then filtered SNPs with at least one replication study and performed meta-analysis of the significance of the associations. SNPs in the alcohol metabolizing genes, in the cholinergic gene cluster CHRNA5-CHRNA3-CHRNB4, and in the DRD2 and ANNK1 genes, are, to date, the most replicated and significant gene variants associated with alcohol- and nicotine-related phenotypes. In the case of cannabis and cocaine, a far fewer number of studies and replications have been reported, indicating either a need for further investigation or that the genetics of cannabis/cocaine addiction are more elusive. This review brings a global state-of-the-art vision of the behavioral genetics of addiction and collaborates on formulation of new hypothesis to guide future work.
Collapse
Affiliation(s)
- Kora-Mareen Bühler
- Department of Psychobiology; School of Psychology; Complutense University of Madrid; Málaga Spain
| | - Elena Giné
- Department of Cellular Biology; School of Medicine; Complutense University of Madrid; Málaga Spain
| | - Victor Echeverry-Alzate
- Department of Psychobiology; School of Psychology; Complutense University of Madrid; Málaga Spain
| | - Javier Calleja-Conde
- Department of Psychobiology; School of Psychology; Complutense University of Madrid; Málaga Spain
| | | | | |
Collapse
|
25
|
Way M, McQuillin A, Saini J, Ruparelia K, Lydall GJ, Guerrini I, Ball D, Smith I, Quadri G, Thomson AD, Kasiakogia-Worlley K, Cherian R, Gunwardena P, Rao H, Kottalgi G, Patel S, Hillman A, Douglas E, Qureshi SY, Reynolds G, Jauhar S, O'Kane A, Dedman A, Sharp S, Kandaswamy R, Dar K, Curtis D, Morgan MY, Gurling HMD. Genetic variants in or near ADH1B and ADH1C affect susceptibility to alcohol dependence in a British and Irish population. Addict Biol 2015; 20:594-604. [PMID: 24735490 DOI: 10.1111/adb.12141] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Certain single nucleotide polymorphisms (SNPs) in genes encoding alcohol dehydrogenase (ADH) enzymes confer a significant protective effect against alcohol dependence syndrome (ADS) in East Asian populations. Recently, attention has focused on the role of these SNPs in determining ADS risk in European populations. To further elucidate these associations, SNPs of interest in ADH1B, ADH1C and the ADH1B/1C intergenic region were genotyped in a British and Irish population (ADS cases n = 1076: controls n = 1027) to assess their relative contribution to ADS risk. A highly significant, protective association was observed between the minor allele of rs1229984 in ADH1B and ADS risk [allelic P = 8.4 × 10(-6) , odds ratio (OR) = 0.26, 95 percent confidence interval, 0.14, 0.49]. Significant associations were also observed between ADS risk and the ADH1B/1C intergenic variant, rs1789891 [allelic P = 7.2 × 10(-5) , OR = 1.4 (1.2, 1.6)] and three non-synonymous SNPs rs698, rs1693482 and rs283413 in ADH1C. However, these associations were not completely independent; thus, while the ADH1B rs1229984 minor allele association was independent of those of the intergenic variant rs1789891 and the three ADH1C variants, the three ADH1C variants were not individually independent. In conclusion, the rare ADH1B rs1229984 mutation provides significant protection against ADS in this British and Irish population; other variants in the ADH gene cluster also alter ADS risk, although the strong linkage disequilibrium between SNPs at this location precluded clear identification of the variant(s) driving the associations.
Collapse
Affiliation(s)
- Michael Way
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Andrew McQuillin
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Jit Saini
- UCL Institute for Liver & Digestive Health; Royal Free Campus; University College London Medical School; UK
| | - Kush Ruparelia
- UCL Institute for Liver & Digestive Health; Royal Free Campus; University College London Medical School; UK
| | - Gregory J. Lydall
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Irene Guerrini
- National Addiction Centre and Social Genetic and Developmental Psychiatry Centre; Institute of Psychiatry; UK
- Bexley Substance Misuse Services; South London & Maudsley NHS Trust; UK
| | - David Ball
- National Addiction Centre and Social Genetic and Developmental Psychiatry Centre; Institute of Psychiatry; UK
| | - Iain Smith
- Kershaw Unit; Gartnavel Royal Hospital; UK
| | - Giorgia Quadri
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Allan D. Thomson
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Katherine Kasiakogia-Worlley
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
- Kershaw Unit; Gartnavel Royal Hospital; UK
| | - Raquin Cherian
- Gatehouse Alcohol Clinic and Max Glatt Unit; Central and North West London NHS Foundation Trust; St Bernard's Hospital; UK
| | - Priyanthi Gunwardena
- Gatehouse Alcohol Clinic and Max Glatt Unit; Central and North West London NHS Foundation Trust; St Bernard's Hospital; UK
| | - Harish Rao
- City and Hackney Centre for Mental Health; East London NHS Foundation Trust; UK
| | - Girija Kottalgi
- Gatehouse Alcohol Clinic and Max Glatt Unit; Central and North West London NHS Foundation Trust; St Bernard's Hospital; UK
| | - Shamir Patel
- Gatehouse Alcohol Clinic and Max Glatt Unit; Central and North West London NHS Foundation Trust; St Bernard's Hospital; UK
| | | | | | | | - Gerry Reynolds
- Homeless Addictions Team; NHS Greater Glasgow and Clyde; UK
| | | | | | - Alex Dedman
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Sally Sharp
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Radhika Kandaswamy
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| | - Karim Dar
- Gatehouse Alcohol Clinic and Max Glatt Unit; Central and North West London NHS Foundation Trust; St Bernard's Hospital; UK
| | - David Curtis
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
- City and Hackney Centre for Mental Health; East London NHS Foundation Trust; UK
| | - Marsha Y. Morgan
- UCL Institute for Liver & Digestive Health; Royal Free Campus; University College London Medical School; UK
| | - Hugh M. D. Gurling
- Molecular Psychiatry Laboratory; Mental Health Sciences Unit; Faculty of Brain Sciences; University College London; UK
| |
Collapse
|
26
|
Ayhan Y, Gürel ŞC, Karaca Ö, Zoto T, Hayran M, Babaoğlu M, Yaşar Ü, Bozkurt A, Dilbaz N, Uluğ BD, Demir B. Association between ADH1C and ALDH2 polymorphisms and alcoholism in a Turkish sample. Nord J Psychiatry 2015; 69:233-9. [PMID: 25372623 DOI: 10.3109/08039488.2014.972450] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Polymorphisms in the genes encoding alcohol metabolizing enzymes are associated with alcohol dependence. AIM To evaluate the association between the alcohol dehydrogenase 1C (ADH1C) Ile350Val and aldehyde dehydrogenase 2 (ALDH2) Glu504Lys polymorphisms and alcohol dependence in a Turkish sample. METHODS 235 individuals (115 alcohol-dependent patients and 120 controls) were genotyped for ADH1C and ALDH2 with PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism). Association between the polymorphisms and family history, daily and maximum amount of alcohol consumed was investigated. The associations between alcohol dependence, severity of consumption and family history and the polymorphisms were analyzed by chi-square or Fisher's exact test where necessary. Relationship between genotypes and dependence related features was evaluated using analysis of variance (ANOVA). RESULTS The -350Val allele for ADH1C (ADH1C*2) was increased in alcohol-dependent patients (P = 0.05). In individuals with a positive family history, the genotype distribution differed significantly (P = 0.031) and more patients carried the Val allele compared with controls (P = 0.025). Genotyping of 162 participants did not reveal the -504Lys allele in ALDH2. CONCLUSIONS These findings suggest that ADH1C*2 is associated with alcohol dependence in the Turkish population displaying a dominant inheritance model. ADH1C*2 allele may contribute to the variance in heritability of alcohol dependence. The ALDH2 -504Lys/Lys or Glu/Lys genotypes were not present in alcohol-dependent patients, similar to that seen in European populations and in contrast to the findings in the Asian populations.
Collapse
Affiliation(s)
- Yavuz Ayhan
- Yavuz Ayhan, Hacettepe University, Faculty of Medicine, Department of Psychiatry , 06100, Sıhhiye, Ankara , Turkey
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Zhong Y, Cao J, Zou R, Peng M. Genetic polymorphisms in alcohol dehydrogenase, aldehyde dehydrogenase and alcoholic chronic pancreatitis susceptibility: a meta-analysis. GASTROENTEROLOGIA Y HEPATOLOGIA 2014; 38:417-25. [PMID: 25541509 DOI: 10.1016/j.gastrohep.2014.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 11/08/2014] [Accepted: 11/10/2014] [Indexed: 12/20/2022]
Abstract
PURPOSE This study was aimed to determine the relationship of alcohol-metabolizing enzymes ADH2, ADH3, and ALDH2 polymorphisms with the susceptibility to alcoholic chronic pancreatitis (ACP). METHODS Meta-analyses that evaluated the association of ADH2, ADH3, and ALDH2 variations with ACP were performed. RESULTS Eight case-control studies were selected for analysis. The overall data revealed a significant association of ADH2 polymorphism (OR=1.56, 95% CI=1.42-1.72, P=0.000 for dominant model; OR=1.63, 95% CI=1.55-1.71, P=0.000 for homozygote comparison model; OR=1.11, 95% CI=1.01-1.22, P=0.030 for allelic contrast model), ADH3 polymorphism (OR=0.95, 95% CI=0.86-1.06, P=0.389 for dominant; OR=0.64, 95% CI=0.44-0.93, P=0.020 for homozygote comparison; and OR=0.87, 95% CI=0.77-0.99, P=0.039 for allelic contrast model) and ALDH2 polymorphism (OR=0.57, 95% CI=0.40-0.81, P=0.002 for dominant; OR=0.50, 95% CI=0.23-1.08, P=0.079 for homozygote comparison; and OR=0.58, 95% CI=0.41-0.84, P=0.003 for allelic contrast model) with ACP risk. The subgroup analyses suggested that the variant ADH2*2/*2+*1/*2, ADH2*2/*2 genotype and ADH2*2 allele significantly increased ACP risk among Asian individuals; the variant ADH3*2/*2 genotype and ADH3*2 allele significantly decreased ACP risk among non-Asian individuals; and the variant ALDH2*2/*2+*1/*2 genotype and ALDH2*2 allele significantly decreased ACP risk among Asians. CONCLUSIONS ADH2, ADH3 and ALDH2 polymorphisms may be susceptibility facts of ACP, and it may be ethnic and race-dependent.
Collapse
Affiliation(s)
- Yanjun Zhong
- ICU Center, The Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Furong, Changsha 410011, Hunan, China.
| | - Jie Cao
- Department of Respiratory, Anhui Provincial Hospital, No. 17 Luyang Road, Hefei 230011, Anhui, China
| | - Runmei Zou
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Furong, Changsha 410011, Hunan, China
| | - Mou Peng
- Department of Urology, The Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Furong, Changsha 410011, Hunan, China
| |
Collapse
|
28
|
Salujha SK, Chaudhury S, Menon PK, Srivastava K, Gupta A. Allelic variants of ADH, ALDH and the five factor model of personality in alcohol dependence syndrome. Ind Psychiatry J 2014; 23:44-51. [PMID: 25535445 PMCID: PMC4261214 DOI: 10.4103/0972-6748.144956] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The etiology of alcohol dependence is a complex interplay of biopsychosocial factors. The genes for alcohol-metabolizing enzymes: Alcohol dehydrogenase (ADH2 and ADH3) and aldehyde dehydrogenase (ALDH2) exhibit functional polymorphisms. Vulnerability of alcohol dependence may also be in part due to heritable personality traits. AIM To determine whether any association exists between polymorphisms of ADH2, ADH3 and ALDH2 and alcohol dependence syndrome in a group of Asian Indians. In addition, the personality of these patients was assessed to identify traits predisposing to alcoholism. MATERIALS AND METHODS In this study, 100 consecutive males with alcohol dependence syndrome attending the psychiatric outpatient department of a tertiary care service hospital and an equal number of matched healthy controls were included with their consent. Blood samples of all the study cases and controls were collected and genotyped for the ADH2, ADH3 and ALDH2 loci. Personality was evaluated using the neuroticism, extraversion, openness (NEO) personality inventory and sensation seeking scale. RESULTS Allele frequencies of ADH2*2 (0.50), ADH3*1 (0.67) and ALSH2*2 (0.09) were significantly low in the alcohol dependent subjects. Personality traits of NEO personality inventory and sensation seeking were significantly higher when compared to controls. CONCLUSIONS The functional polymorphisms of genes coding for alcohol metabolizing enzymes and personality traits of NEO and sensation seeking may affect the propensity to develop dependence.
Collapse
Affiliation(s)
- S K Salujha
- Department of Psychiatry and Microbiology, Armed Forces Medical College, Pune, India
| | - S Chaudhury
- Department of Psychiatry, Pravaara Institute of Medical Sciences, Deemed University, Rural Medical College and Pravara Rural Hospital, Loni, Maharashtra, India
| | - P K Menon
- Department of Psychiatry and Microbiology, Armed Forces Medical College, Pune, India
| | - K Srivastava
- Department of Psychiatry and Microbiology, Armed Forces Medical College, Pune, India
| | - A Gupta
- Department of Psychiatry and Microbiology, Armed Forces Medical College, Pune, India
| |
Collapse
|
29
|
Dura P, Berkers T, van Veen EM, Salomon J, te Morsche RHM, Roelofs HMJ, Kristinsson JO, Wobbes T, Witteman BJM, Tan ACITL, Drenth JPH, Peters WHM. Polymorphisms in alcohol-metabolizing enzymes and esophageal carcinoma susceptibility: a Dutch Caucasian case–control study. J Hum Genet 2013; 58:742-8. [DOI: 10.1038/jhg.2013.95] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 07/30/2013] [Accepted: 08/13/2013] [Indexed: 02/07/2023]
|
30
|
Muñoz X, Amiano P, Celorrio D, Dorronsoro M, Sánchez MJ, Huerta JM, Barricarte A, Arriola L, Navarro C, Molina-Montes E, Chirlaque MD, Ardanaz E, Rodriguez L, Duell EJ, Hijona E, Herreros-Villanueva M, Sala N, Bujanda L. Association of alcohol dehydrogenase polymorphisms and life-style factors with excessive alcohol intake within the Spanish population (EPIC-Spain). Addiction 2012; 107:2117-27. [PMID: 22690706 DOI: 10.1111/j.1360-0443.2012.03970.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 03/20/2012] [Accepted: 05/29/2012] [Indexed: 01/10/2023]
Abstract
AIMS To analyse associations between alcohol dehydrogenase (ADH) polymorphisms and alcohol intake in Spanish men and women. DESIGN AND SETTINGS We analysed the relationship between 21 genetic variants in ADH genes and excessive alcohol intake in both men and women. Single nucleotide polymorphisms (SNPs) were genotyped using a customized array and a sex-stratified analysis was performed. MEASUREMENTS Ethanol intake was calculated using a validated dietary history questionnaire. PARTICIPANTS Heavy consumers of alcohol (≥70 g/day in men, ≥42 g/day in women) (653 cases) and very low or non-consumers (<2 g/day) (880 controls) from the Spanish cohort of the European Prospective Investigation into Cancer (EPIC). FINDINGS We found statistically significant associations between alcohol intake and known life-style factors; namely, smoking and food energy intake (meat and fruit/seeds) in both men and women, as well as with physical activity in women and educational level in men. Additionally, we found that a non-synonymous coding SNP in ADH1B (rs1229984) is associated inversely with excessive alcohol intake in men [odds ratio (OR) = 0.19, 95% confidence interval (CI) = 0.11-0.33; P = 4.77E(-10) ) and women (OR = 0.48, 95% CI = 0.27-0.83; P = 0.0067). Furthermore, ADH6 rs3857224 was found associated with heavy alcohol intake in women (OR = 1.61, 95% CI = 1.21-2.14; P = 1.01E(-3) ), but not in men. CONCLUSIONS In the Spanish population, the single nucleotide polymorphism of alcohol dehydrogenase ADH1B, rs1229984, is associated inversely with alcohol intake in both men and women. Another polymorphism of ADH6, rs3857224, is associated with heavy alcohol intake in women.
Collapse
Affiliation(s)
- Xavier Muñoz
- Molecular Epidemiology Group, Translational Research Laboratory, Catalan Institute of Oncology (ICO-IDIBELL), Barcelona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Celorrio D, Bujanda L, Caso C, Landabaso M, Oria JC, Ogando J, de Pancorbo MM. A comparison of Val81Met and other polymorphisms of alcohol metabolising genes in patients and controls in Northern Spain. Alcohol 2012; 46:427-31. [PMID: 22560290 DOI: 10.1016/j.alcohol.2012.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 02/13/2012] [Accepted: 03/22/2012] [Indexed: 01/20/2023]
Abstract
The aim of this paper is to study polymorphism in the TH, ADH1B, ADH1C, ALDH2 and CYP2E1 genes so as to ascertain whether it is associated with excessive consumption of alcohol. The SNPs rs6356 of TH, rs1229984, rs2066702 of ADH1B; rs698, rs1693482 of ADH1C; rs671 of ALDH2; rs72559710, rs55897648, rs6413419, rs3813867, rs2031920, rs6413432 of CYP2E1 were studied in a sample of 172 high-level patients and 150 fully non-drinkers controls. Genotyping was performed using Rt-PCR with Taqman probes. SNPs located at ALDH2 and CYP2E1 showed no heterozygosity. Frequency distribution showed significant differences between the two groups studied for loci TH and ADH1B. The genotype Val/Val of TH locus increased in risk 1.988 times (95% CI: 1.006-3.930) that the subjects carrying the genotype Met/Met; and the genotype ADH1B*1/*1 of ADH1B locus increased in risk 3.811 times (CI: 1.660-8.749) that the subjects carrying the genotype ADH1B*1/*2. Alleles Val and ADH1B*1 may therefore increase the risk of the onset and development of this illness.
Collapse
|
32
|
Li D, Zhao H, Gelernter J. Further clarification of the contribution of the ADH1C gene to vulnerability of alcoholism and selected liver diseases. Hum Genet 2012; 131:1361-74. [PMID: 22476623 PMCID: PMC3557796 DOI: 10.1007/s00439-012-1163-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 03/24/2012] [Indexed: 12/13/2022]
Abstract
The alcohol dehydrogenase 1C (ADH1C) subunit is an important member of the alcohol dehydrogenase family, a set of genes that plays a major role in the catabolism of ethanol. Numerous association studies have provided compelling evidence that ADH1C gene variation (formerly ADH3) is associated with altered genetic susceptibility to alcoholism and alcohol-related liver disease, cirrhosis, or pancreatitis. However, the results have been inconsistent, partially, because each study involved a limited number of subjects, and some were underpowered. Using cumulative data over the past two decades, this meta-analysis (6,796 cases and 6,938 controls) considered samples of Asian, European, African, and Native American origins to examine whether the aggregate genotype provide statistically significant evidence of association. The results showed strong evidence of association between ADH1C Ile350Val (rs698, formerly ADH1C *1/*2) and alcohol dependence (AD) and abuse in the combined studies. The overall allelic (Val vs. Ile or *2 vs. *1) P value was 1 × 10(-8) and odds ratio (OR) was 1.51 (1.31, 1.73). The Asian populations produced stronger evidence of association with an allelic P value of 4 × 10(-33) [OR 2.14 (1.89, 2.43)] with no evidence of heterogeneity, and the dominant and recessive models revealed even stronger effect sizes. The strong evidence remained when stricter criteria and sub-group analyses were applied, while Asians always showed stronger associations than other populations. Our findings support that ADH1C Ile may lower the risk of AD and alcohol abuse as well as alcohol-related cirrhosis in pooled populations, with the strongest and most consistent effects in Asians.
Collapse
Affiliation(s)
- Dawei Li
- Department of Psychiatry, School of Medicine, Yale University, 300 George Street, Suite 503, New Haven, CT 06511, USA.
| | | | | |
Collapse
|
33
|
Abstract
We recently proposed to classify proteins by their functional surfaces. Using the structural attributes of functional surfaces, we inferred the pairwise relationships of proteins and constructed an expandable database of protein surface classification (PSC). As the functional surface(s) of a protein is the local region where the protein performs its function, our classification may reflect the functional relationships among proteins. Currently, PSC contains a library of 1974 surface types that include 25 857 functional surfaces identified from 24 170 bound structures. The search tool in PSC empowers users to explore related surfaces that share similar local structures and core functions. Each functional surface is characterized by structural attributes, which are geometric, physicochemical or evolutionary features. The attributes have been normalized as descriptors and integrated to produce a profile for each functional surface in PSC. In addition, binding ligands are recorded for comparisons among homologs. PSC allows users to exploit related binding surfaces to reveal the changes in functionally important residues on homologs that have led to functional divergence during evolution. The substitutions at the key residues of a spatial pattern may determine the functional evolution of a protein. In PSC (http://pocket.uchicago.edu/psc/), a pool of changes in residues on similar functional surfaces is provided.
Collapse
Affiliation(s)
- Yan Yuan Tseng
- Department of Ecology and Evolution, University of Chicago 1101 East 57th Street, Chicago, IL 60637, USA.
| | | |
Collapse
|
34
|
Determination of the effects of Alcohol Dehydrogenase (ADH) 1B and ADH1C polymorphisms on alcohol dependence in Turkey. Sci Justice 2012; 52:58-61. [DOI: 10.1016/j.scijus.2011.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 02/07/2011] [Accepted: 05/13/2011] [Indexed: 11/18/2022]
|
35
|
Kortunay S, Köseler A, Ozdemir F, Atalay EÖ. Association of a genetic polymorphism of the alcohol-metabolizing enzyme ADH1C with alcohol dependence: results of a case-control study. Eur Addict Res 2012; 18:161-6. [PMID: 22414625 DOI: 10.1159/000336314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 01/03/2012] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Alcohol dependence causes serious problems which may be influenced by genetic factors associated with alcohol metabolism. The aim was to investigate the allelic and genotypic difference in distribution of a polymorphism in alcohol dehydrogenase 1C gene (ADH1C) between alcohol-dependent individuals and controls, and to examine if these genotypes were associated with the age at which the patient became alcohol-dependent. METHODS We conducted a case-control study including 90 alcohol-dependent cases and 100 historic controls. The genomic DNA was isolated and the alleles were analyzed with an RFLP. RESULTS The ADH1C*1 allele frequencies were 0.89 (95% CI 0.84-0.91) in controls and 0.68 (95% CI 0.61-0.74) in alcohol-dependent patients. The frequencies of the ADH1C*2 allele were 0.11 (95% CI 0.07-0.14) and 0.32 (95% CI 0.25-0.38) among controls and alcohol-dependent patients, respectively (p < 0.0001). The ADH1C*1/*1 genotype frequency was significantly higher in the control group (77%) compared to that of the alcohol-dependents (51%, p < 0.0001). The ADH1C*1/*2 genotype frequency was significantly lower in the control group (23%) compared to that of the alcohol-dependents (42%, p < 0.0001). We obtained no statistically significant difference among the ADH1C genotype groups regarding age. CONCLUSIONS These findings suggest that a significantly higher presence of ADH1C*2 allele is associated with alcohol dependence in a Turkish population. Studies with other related polymorphisms are needed to more precisely estimate the association of alcohol dependence with ADH1C.
Collapse
Affiliation(s)
- Selim Kortunay
- Department of Pharmacology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
| | | | | | | |
Collapse
|
36
|
Liang C, Marsit CJ, Houseman EA, Butler R, Nelson HH, McClean MD, Kelsey KT. Gene-environment interactions of novel variants associated with head and neck cancer. Head Neck 2011; 34:1111-8. [PMID: 22052802 DOI: 10.1002/hed.21867] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 05/03/2011] [Accepted: 05/25/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A genome-wide association study for upper aerodigestive tract cancers identified 19 candidate single-nucleotide polymorphisms (SNPs). We used these SNPs to investigate the potential gene-gene and gene-environment interactions in head and neck squamous cell carcinoma (HNSCC) risk. METHODS The 19 variants were genotyped using Taqman assays among 575 cases and 676 controls in our population-based case-control study. RESULTS A restricted cubic spline model suggested both ADH1B and HEL308 modified the association between smoking pack-years and HNSCC. Classification and regression tree analysis demonstrated a higher-order interaction between smoking status, ADH1B, FLJ13089, and FLJ35784 in HNSCC risk. Compared with ever smokers carrying ADH1B T/C+T/T genotypes, smokers carrying ADH1B C/C genotype and FLJ13089 A/G+A/A genotypes had the highest risk of HNSCC (odds ratio = 1.84). CONCLUSIONS Our results suggest that the risk associated with these variants may be specifically important among specific exposure groups.
Collapse
Affiliation(s)
- Caihua Liang
- Department of Community Health, Brown University, Providence, Rhode Island, USA
| | | | | | | | | | | | | |
Collapse
|
37
|
Li D, Zhao H, Gelernter J. Strong association of the alcohol dehydrogenase 1B gene (ADH1B) with alcohol dependence and alcohol-induced medical diseases. Biol Psychiatry 2011; 70:504-12. [PMID: 21497796 PMCID: PMC3142297 DOI: 10.1016/j.biopsych.2011.02.024] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 02/21/2011] [Accepted: 02/21/2011] [Indexed: 12/18/2022]
Abstract
BACKGROUND The alcohol dehydrogenase 1B gene (ADH1B) is hypothesized to affect predisposition to alcohol dependence (AD) and abuse. A variant of the ADH1B gene (rs1229984 or Arg48His; previously referred to as Arg [*1] and His [*1]) has been reported to be associated with reduced rates of alcohol and drug dependence. Different studies have produced inconclusive results regarding association between rs1229984 (or rs2066702) and substance dependence. METHODS Using the cumulative association study literature from the past 21 years from both English- and Chinese-language publications, this meta-analysis seeks to clarify the contradictory findings and to examine whether the aggregate data provide new evidence of significant association. RESULTS The results, based on a large sample size (9638 cases and 9517 controls), suggested strong associations with alcohol dependence and abuse as well as alcohol-induced liver diseases, with an allelic (Arg vs. His) p value being 1 × 10(-36) and odds ratio (OR) (95% confidence intervals [CI]) 2.06 (1.84-2.31) under the random effects model. The dominant and recessive models produced larger ORs of 2.17 and 3.05, respectively. When more stringent criteria and subgroup analyses were imposed, the associations remained consistent and were strongest in various Asian groups (allelic p = 7 × 10(-42) and OR (95% CI) = 2.24 [1.99-2.51] with ORs of 2.16 and 4.11 for dominant and recessive models, respectively). CONCLUSIONS Our findings provide further strong evidence for the involvement of the ADH1B gene in the pathogenesis of alcohol dependence and abuse as well as for some alcohol-induced medical diseases in the multiple ethnic populations--in particular, certain Asian populations.
Collapse
Affiliation(s)
- Dawei Li
- Department of Psychiatry, School of Medicine, Yale University, New Haven, CT 06511, USA.
| | | | | |
Collapse
|
38
|
Seth D, Haber PS, Syn WK, Diehl AM, Day CP. Pathogenesis of alcohol-induced liver disease: classical concepts and recent advances. J Gastroenterol Hepatol 2011; 26:1089-105. [PMID: 21545524 DOI: 10.1111/j.1440-1746.2011.06756.x] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alcoholic liver disease (ALD) is a primary consequence of heavy and prolonged drinking. ALD contributes to the bulk of liver disease burden worldwide. Progression of ALD is a multifactorial and multistep process that includes many genetic and environmental risk factors. The molecular pathogenesis of ALD involves alcohol metabolism and secondary mechanisms such as oxidative stress, endotoxin, cytokines and immune regulators. The histopathological manifestation of ALD occurs as an outcome of complex but controlled interactions between hepatic cell types. Hepatic stellate cells (HSCs) are the key drivers of fibrogenesis, but transformation of hepatocytes to myofibroblastoids also implicate parenchymal cells as playing an active role in hepatic fibrogenesis. Recent discoveries indicate that lipogenesis during the early stages of ALD is a risk for advancement to cirrhosis. Other recently identified novel molecules and physiological/cell signaling pathways include fibrinolysis, osteopontin, transforming growth factor-β-SMAD and hedgehog signaling, and involvement of novel cytokines in hepatic fibrogenesis. The observation that ALD and non-alcoholic steatohepatitis share common pathways and genetic polymorphisms suggests operation of parallel pathogenic mechanisms. Future research involving genomics, epigenomics, deep sequencing and non-coding regulatory elements holds promise to identify novel diagnostic and therapeutic targets for ALD. There is also a need for adequate animal models to study pathogenic mechanisms at the molecular level and targeted therapy.
Collapse
Affiliation(s)
- Devanshi Seth
- Drug Health Services, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.
| | | | | | | | | |
Collapse
|
39
|
Gizer IR, Edenberg HJ, Gilder DA, Wilhelmsen KC, Ehlers CL. Association of alcohol dehydrogenase genes with alcohol-related phenotypes in a Native American community sample. Alcohol Clin Exp Res 2011; 35:2008-18. [PMID: 21635275 DOI: 10.1111/j.1530-0277.2011.01552.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous linkage studies, including a study of the Native American population described in the present report, have provided evidence for linkage of alcohol dependence and related traits to chromosome 4q near a cluster of alcohol dehydrogenase (ADH) genes, which encode enzymes of alcohol metabolism. METHODS The present study tested for associations between alcohol dependence and related traits and 22 single-nucleotide polymorphisms (SNPs) spanning the 7 ADH genes. Participants included 586 adult men and women recruited from 8 contiguous Native American reservations. A structured interview was used to assess DSM-III-R alcohol dependence criteria as well as a set of severe alcohol misuse symptoms and alcohol withdrawal symptoms. RESULTS No evidence for association with the alcohol dependence diagnosis was observed, but an SNP in exon 9 of ADH1B (rs2066702; ADH1B*3) and an SNP at the 5' end of ADH4 (rs3762894) showed significant evidence of association with the presence of withdrawal symptoms (p = 0.0018 and 0.0012, respectively). Further, a haplotype analysis of these 2 SNPs suggested that the haplotypes containing either of the minor alleles were protective against alcohol withdrawal relative to the ancestral haplotype (p = 0.000006). CONCLUSIONS These results suggest that variants in the ADH1B and ADH4 genes may be protective against the development of some symptoms associated with alcohol dependence.
Collapse
Affiliation(s)
- Ian R Gizer
- Department of Psychological Sciences, University of Missouri, Columbia, Missouri, USA
| | | | | | | | | |
Collapse
|
40
|
Hernández-Tobías A, Julián-Sánchez A, Piña E, Riveros-Rosas H. Natural alcohol exposure: Is ethanol the main substrate for alcohol dehydrogenases in animals? Chem Biol Interact 2011; 191:14-25. [DOI: 10.1016/j.cbi.2011.02.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 02/01/2011] [Accepted: 02/01/2011] [Indexed: 01/30/2023]
|
41
|
Alcohol consumption, alcohol dehydrogenase 1C (ADH1C) genotype, and risk of colorectal cancer in the Netherlands Cohort Study on diet and cancer. Alcohol 2011; 45:217-25. [PMID: 21163612 DOI: 10.1016/j.alcohol.2010.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 10/08/2010] [Accepted: 10/12/2010] [Indexed: 01/25/2023]
Abstract
Within the Netherlands Cohort Study (1986), we examined associations between alcohol consumption, the alcohol dehydrogenase 1C (ADH1C) genotype, and risk of colorectal cancer (CRC). After a follow-up period of 7.3 years, 594 CRC cases with information on genotype and baseline alcohol intake were available for analyses. Adjusted incidence rate ratios (RRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazards models. In subjects who reported to have consumed equal amounts of total alcohol both 5 years before baseline and at baseline, drinkers of ≥30g of alcohol per day with the ADH1C*2/*2 genotype were associated-although not statistically significant-with an increased risk of CRC relative to abstainers with the ADH1C*1/*1 genotype (RR: 1.91, 95% CI: 0.68, 5.34). The risk estimate in this exposure group increased slightly when compared with light drinkers of ≥0.5-<5g/day with the ADH1C*1/*1 genotype (RR: 2.32, 95% CI: 0.80, 6.72). The interaction term however, was not statistically significant (P>.05). In subjects who reported to have consumed equal amounts of total alcohol both 5 years before baseline and at baseline, drinkers of ≥30g of alcohol per day were associated-although not statistically significant-with an increased risk of CRC relative to abstainers (RR: 1.38, 95% CI: 0.80, 2.38). This risk estimate for high-level drinkers became stronger when compared with light drinkers (RR: 1.74, 95% CI: 1.01, 2.99). As main effect of genotype, we observed that the ADH1C*2/*2 genotype was associated with a 42% increase in risk of CRC when compared with the ADH1C*1/*1 genotype. In conclusion, both genotype and alcohol consumption were associated with an increased risk of CRC. Owing to limited statistical power, we found no apparent evidence for the ADH1C genotype as effect modifier of the relationship between alcohol intake and CRC. Nevertheless, the interaction deserves further investigation in larger genetic epidemiologic studies.
Collapse
|
42
|
Luczak SE, Pandika D, Shea SH, Eng MY, Liang T, Wall TL. ALDH2 and ADH1B interactions in retrospective reports of low-dose reactions and initial sensitivity to alcohol in Asian American college students. Alcohol Clin Exp Res 2011; 35:1238-45. [PMID: 21355870 DOI: 10.1111/j.1530-0277.2011.01458.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND A mechanistic model has been proposed for how alcohol-metabolizing gene variants protect individuals from the development of alcohol use disorders, with heightened sensitivity to alcohol being an early step (endophenotype) in this model. This study was designed to determine whether possession of 2 alcohol-metabolizing genes variations, the aldehyde dehydrogenase ALDH2*2 allele and the alcohol dehydrogenase ADH1B*2 allele, was associated with self-reported sensitivity to alcohol at low doses and at initial use. METHODS Asian-American college students (N=784) of Chinese and Korean descent were genotyped at the ALDH2 and ADH1B loci and assessed for lifetime alcohol symptoms following 1 or 2 drinks and level of response to alcohol during the first 5 lifetime drinking episodes. RESULTS Participants who had an ALDH2*2 allele were more likely to report experiencing all 6 low-dose symptoms and having heightened initial response to alcohol. An interaction was found between ALDH2*2 and ADH1B*2, with ADH1B*2 being associated with heightened self-reported sensitivity to alcohol only in individuals who also possessed 1 ALDH2*2 allele. CONCLUSIONS These findings suggest the effects of ADH1B*2 may be felt more strongly in Asians who already have some heightened sensitivity to alcohol from possessing 1 ALDH2*2 allele, but who are not too sensitized to alcohol from possessing 2 ALDH2*2 alleles. These results offer additional insight into the discrepant findings that have been reported in the literature for the role of ADH1B*2 in response to alcohol and the development of alcohol-related problems.
Collapse
Affiliation(s)
- Susan E Luczak
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | | | | | | | | | | |
Collapse
|
43
|
Celorrio D, Bujanda L, Chbel F, Sánchez D, Martinez-Jarreta B, de Pancorbo MM. Alcohol-metabolizing enzyme gene polymorphisms in the Basque Country, Morocco, and Ecuador. Alcohol Clin Exp Res 2011; 35:879-84. [PMID: 21303386 DOI: 10.1111/j.1530-0277.2010.01418.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Genes ADH1B and ADH1C have certain functional SNPs that are related to alcoholism. The frequencies of these polymorphisms vary between populations, so studying them in populations made up of groups with different phylogeographic origins requires an individualized analysis of each group. In the Basque Country, various recently arrived foreign groups live side by side with the original Southern European population, particularly North Africans from Morocco and Hispanics from Ecuador. This study sets out to examine the distribution of the frequencies of alleles that encode alcohol dehydrogenase with different metabolization rates, as higher rates make for greater susceptibility to alcoholism. METHODS Four SNPs: rs1229984, rs2066702, rs698, and rs1693482 using Taqman technology with a Rt-PCR were studied in a sample of 114 European individuals originating from the Basque Country, 100 North Africans from Morocco, and 109 Hispanics from Ecuador. The allele and genotype frequencies were calculated using Genepop v4.0. The most frequent haplotypes were estimated using the ELB algorithm with Arlequin v3.01. A breakdown of the complete disequilibrium commonly observed between the 2 missense polymorphisms that distinguish the common ADH1C alleles rs698 and rs1693482 was observed and confirmed by sequencing in 2 individuals from the Basque Country. RESULTS A higher frequency of protective allele ADH1C*1 was found in the North African population group. Haplotype combinations are also studied, and the rare association of alleles ADH1B*2-ADH1C*2 was observed in the Southern European group in the Basque Country, along with an allele not hitherto described in the ADH1C locus. CONCLUSIONS This study provides the first data published on the allele and genotype frequencies of the ADH1C locus in the Moroccan population and on the ADH1B and ADH1C loci in the Ecuadorian population. The study shows differences in the distribution of the frequency of allele ADH1C*1 between the Basque Country and Moroccan populations, and a new allele not described to date.
Collapse
Affiliation(s)
- David Celorrio
- BIOMICs Research Group, Department of Z. and Cell Biology, DNA Bank, University of Basque Country, Spain
| | | | | | | | | | | |
Collapse
|
44
|
Li YM, Fan JG, Wang BY, Lu LG, Shi JP, Niu JQ, Shen W. Guidelines for the diagnosis and management of alcoholic liver disease: update 2010: (published in Chinese on Chinese Journal of Hepatology 2010; 18: 167-170). J Dig Dis 2011; 12:45-50. [PMID: 21276208 DOI: 10.1111/j.1751-2980.2010.00477.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- You Ming Li
- Department of Gastroenterology, 1st Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Variation in the ADH1B proximal promoter affects expression. Chem Biol Interact 2010; 191:38-41. [PMID: 21168396 DOI: 10.1016/j.cbi.2010.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Revised: 12/09/2010] [Accepted: 12/10/2010] [Indexed: 11/21/2022]
Abstract
The primary pathway of metabolism of dietary alcohol is via its oxidation in liver by alcohol dehydrogenases (ADH). Differences in the ADH enzyme activity or levels of enzyme present could affect the risk for alcoholism. Regulatory variations have been shown to affect the promoter activity and thereby affect the risk for alcoholism. In this study the functional effects of the two SNPs (rs1159918 and rs1229982) in the proximal promoter region of ADH1B that were associated with alcoholism were explored. We examined the effects of five naturally occurring haplotypes on the promoter activity. We observed that a C to A change at rs1229982 increased promoter activity 1.4-fold.
Collapse
|
46
|
Husemoen LLN, Jørgensen T, Borch-Johnsen K, Hansen T, Pedersen O, Linneberg A. The association of alcohol and alcohol metabolizing gene variants with diabetes and coronary heart disease risk factors in a white population. PLoS One 2010; 5:e11735. [PMID: 20700531 PMCID: PMC2916825 DOI: 10.1371/journal.pone.0011735] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Accepted: 06/28/2010] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Epidemiological studies have shown a J- or U-shaped relation between alcohol and type 2 diabetes and coronary heart disease (CHD). The underlying mechanisms are not clear. The aim was to examine the association between alcohol intake and diabetes and intermediate CHD risk factors in relation to selected ADH and ALDH gene variants. METHODOLOGY/PRINCIPAL FINDINGS Cross-sectional study including 6,405 Northern European men and women aged 30-60 years from the general population of Copenhagen, Denmark. Data were collected with self-administered questionnaires, a physical examination, a 2 hour oral glucose tolerance test, and various blood tests. J shaped associations were observed between alcohol and diabetes, metabolic syndrome (MS), systolic and diastolic blood pressure, triglyceride, total cholesterol, and total homocysteine. Positive associations were observed with insulin sensitivity and HDL cholesterol, and a negative association with insulin release. Only a few of the selected ADH and ALDH gene variants was observed to have an effect. The ADH1c (rs1693482) fast metabolizing CC genotype was associated with an increased risk of impaired glucose tolerance (IGT)/diabetes compared to the CT and TT genotypes. Significant interactions were observed between alcohol and ADH1b (rs1229984) with respect to LDL and between alcohol and ALDH2 (rs886205) with respect to IGT/diabetes. CONCLUSIONS/SIGNIFICANCE The selected ADH and ALDH gene variants had only minor effects, and did not seem to markedly modify the health effects of alcohol drinking. The observed statistical significant associations would not be significant, if corrected for multiple testing.
Collapse
|
47
|
Kayaaltı Z, Söylemezoğlu T. Distribution of ADH1B, ALDH2, CYP2E1 *6, and CYP2E1 *7B genotypes in Turkish population. Alcohol 2010; 44:415-23. [PMID: 20598484 DOI: 10.1016/j.alcohol.2010.06.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Revised: 06/04/2010] [Accepted: 06/04/2010] [Indexed: 12/20/2022]
Abstract
The most well-known metabolic pathways from ethanol to acetaldehyde include alcohol dehydrogenase (ADH) and the microsomal ethanol oxidizing system that involves cytochrome P450 2E1 (CYP2E1). Acetaldehyde is further oxidized to acetate by aldehyde dehydrogenase (ALDH). The genetic variation of ADH1B, ALDH2, and CYP2E1 is different among racial populations and cause difference in elimination rates of alcohol. The aim of this study was to determine the polymorphisms of ADH1B (rs1229984; Arg47His), ALDH2 (rs671; Glu487Lys), CYP2E1*6 (rs6413432; T7632A), and CYP2E1*7B (rs6413420; G-71T) in unrelated healthy Turkish population and compare it with other populations. ADH1B and ALDH2 polymorphisms were analyzed with an allele-specific polymerase chain reaction (PCR) assay, and CYP2E1*6 and CYP2E1*7B polymorphisms were genotyped by PCR-restriction fragment length polymorphism method. ADH1B polymorphism analysis yielded the genotype distribution as 83.9% ADH1B*1/1 and 16.1% ADH1B*1/2, and no individuals with ALDH2*1/2 and ALDH2*2/2 genotypes were found in Turkish population. The genotype frequencies for CYP2E1*6 polymorphism were found as 85.3% for homozygote common, 14.1% for heterozygote, and 0.6% for homozygote uncommon. For CYP2E1*7B polymorphism, the genotype frequencies were determined to be 86.5% G/G, 13.5% for G/T; however, no individuals with homozygote uncommon genotype were detected. According to our study results, the genotype distributions of ADH1B, ALDH2, CYP2E1*6, and CYP2E1*7B in Turkish population were similar compared with Caucasian and some European populations, whereas differed significantly from East Asian populations. This study may be useful in epidemiological studies of the influence of ADH1B, ALDH2, CYP2E1*6, and CYP2E1*7B polymorphisms on diseases, including several types of cancer related to alcohol consumption and alcohol dependence.
Collapse
|
48
|
Polymorphisms in the interleukin-10 gene promoter and the risk of alcoholism and alcoholic liver disease in Caucasian Spaniard men. Alcohol 2010; 44:211-6. [PMID: 20570082 DOI: 10.1016/j.alcohol.2010.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2008] [Revised: 12/06/2009] [Accepted: 02/10/2010] [Indexed: 02/07/2023]
Abstract
Controversy surrounds the possible influence of the single nucleotide polymorphisms (SNPs) of the interleukin-10 (IL-10) gene promoter on the risk for alcoholic liver disease. Our aim was to determine whether the SNP of the IL-10 gene promoter are associated with an increased risk for alcoholism and for alcoholic liver disease in male Spaniards. The -627 C>A SNP of the IL-10 gene promoter was assessed in a cohort of 344 Caucasian Spanish men, 168 alcoholics, and 176 nonalcoholics. The alcoholic group comprised 79 individuals without liver histopathologic abnormalities and 89 patients with chronic alcoholic liver disease. The nonalcoholic group was made of 62 healthy controls and 114 patients with chronic nonalcoholic liver disease. Genotyping was performed using PCR and automatic sequencing analysis methods on white cell DNA. Genotype and allele frequencies were compared by using the chi(2) test. Overall, no differences in either genotype and allele distribution was observed when comparing the four patient categories defined (P=0.62 and P=0.33, respectively). Subset analyses showed no differences in the genotype and allele distributions between all alcoholic and all nonalcoholic subjects (P=0.55 and P=0.29, respectively). This study failed to detect significant associations of the IL-10 -627C>A SNP and alcoholism or alcoholic liver disease in a cohort of Caucasian male Spaniards.
Collapse
|
49
|
Toth R, Pocsai Z, Fiatal S, Szeles G, Kardos L, Petrovski B, McKee M, Adany R. ADH1B*2 allele is protective against alcoholism but not chronic liver disease in the Hungarian population. Addiction 2010; 105:891-6. [PMID: 20219057 DOI: 10.1111/j.1360-0443.2009.02876.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Standardized death rates from chronic liver diseases (CLDs) in Hungary are much higher than the European Union average. Carrying the alcohol dehydrogenase 1B 48His allele (rs1229984 or ADH1B*2) could decrease the risk of alcoholism, but with persistent drinking may confer a greater risk of CLDs. The aim of this study was to assess the prevalence of this polymorphism in the Hungarian population and its association with alcohol consumption and with CLDs. METHODS AND RESULTS A total of 278 cases with diagnosed CLDs and 752 controls without any alterations in liver function, all males aged 45-64, were screened for ADH1B Arg48His polymorphism. ADH1B*2 allele frequencies in controls and cases were 8.31% and 4.50%, respectively (chi(2) = 9.2; P = 0.01). Carrying the ADH1B*2 allele was associated with significantly lower odds ratio (OR) for drinking frequency (OR = 0.63; P = 0.003), the number of positive answers on CAGE (Cut-down, Annoyed, Guilt, Eye-opener) assessment (OR = 0.58; P = 0.005) and a positive CAGE status (OR = 0.55; P = 0.007). There was a significant association between ADH1B*2 and CLDs (OR = 0.50; P = 0.003), but it disappeared after adjusting for CAGE status and scores (OR = 0.67 P = 0.134; OR = 0.67 P = 0.148, respectively) and weakened after adjusting for drinking frequency (OR = 0.61; P = 0.045). Among heavy drinkers the presence of ADH1B*2 did not increase the risk of cirrhosis but there was a significant interaction between genotype and CAGE status (P = 0.003, P = 0.042), with ADH1B*2 conferring reduced risk of CLDs in CAGE negatives. CONCLUSION In Hungarians, the ADH1B 48His allele reduces the risk of alcoholism, but not the risk of chronic liver disease among heavy drinkers.
Collapse
Affiliation(s)
- Reka Toth
- Department of Preventive Medicine, Faculty of Public Health, Medical and Health Science Centre, University of Debrecen, PO Box 9, Debrecen, H-4012 Hungary
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Cichoż-Lach H, Celiński K, Wojcierowski J, Słomka M, Lis E. Genetic polymorphism of alcohol-metabolizing enzyme and alcohol dependence in Polish men. Braz J Med Biol Res 2010; 43:257-61. [PMID: 20401433 DOI: 10.1590/s0100-879x2010007500006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Accepted: 01/26/2010] [Indexed: 12/20/2022] Open
Affiliation(s)
| | | | | | | | - E. Lis
- Medical University of Lublin
| |
Collapse
|