Serotonin transporter gene linked polymorphism (5-HTTLPR) determines progredience of alcohol dependence in Belarusian young males. 2019

Andrei Kapitau, and Inessa Goloenko, and Victor Obyedkov, and Kirill Pavlov, and Sławomir Dariusz Szajda, and Napoleon Waszkiewicz
Belarusian State Medical University, Department of Psychiatry and Medical Psychology, Minsk, Belarus.

OBJECTIVE Allelic duality and functional impact of degenerate repeat at 5'- flanking promoter region in SLC6A4 gene of the serotonin transporter (5-HTTLPR), have been in the focus of investigations over the years. Various outcomes regarding an association of its polymorphism with risks of alcohol dependence syndrome (ADS) were presented. Such studies have not been conducted in the Eastern European population e.g. Belarus. We therefore checked: the association of 5-HTTLPR polymorphism with ADS, and functional impact of the polymorphism on progredience of ADS in Belarusian population. METHODS The study involved 499 Belarusian males: 377 subjects with ADS (AG), and a control group (CG) with 122 subjects without alcohol-related problems. The ADS group was further divided into two groups of individuals with rapid (AG (R)) and delayed (AG (D)) progression of ADS. Clinical diagnosis was carried-out using ICD-10 criteria, Belarusian Addiction Severity Index, "B-ASI" and Alcohol-Use-Disorders-Identification-Test (AUDIT). PCR-RFLP analysis was performed. RESULTS There were no significant differences in the distribution of frequencies of either the 5-HTTLPR genotype or the short and long allele among AG and CG. However, the ADS 5-HTTLPR genotype and allele distribution frequencies differ significantly by the variation in progression of ADS. CONCLUSIONS There is no significant association between polymorphism of serotonin transporter gene and risk of ADS. However, the polymorphism significantly determines progredience of ASD in subjects with pathological patterns of alcohol consumption. Findings from this study carry preliminary significance as a facility to effective alcohol addiction treatment, rehabilitation and preventive services in the Eastern Europe.

UI MeSH Term Description Entries
D008297 Male Males
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D002094 Republic of Belarus A country in Eastern Europe, east of Poland. The capital is Minsk. Belarus,Belorussian S.S.R.,Byelarus,Byelorussian S.S.R.,Belorussia,Belorussian SSR,Byelorussian SSR
D005787 Gene Frequency The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION. Allele Frequency,Genetic Equilibrium,Equilibrium, Genetic,Allele Frequencies,Frequencies, Allele,Frequencies, Gene,Frequency, Allele,Frequency, Gene,Gene Frequencies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000437 Alcoholism A primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. Each of these symptoms may be continuous or periodic. (Morse & Flavin for the Joint Commission of the National Council on Alcoholism and Drug Dependence and the American Society of Addiction Medicine to Study the Definition and Criteria for the Diagnosis of Alcoholism: in JAMA 1992;268:1012-4) Alcohol Abuse,Alcoholic Intoxication, Chronic,Ethanol Abuse,Alcohol Addiction,Alcohol Dependence,Alcohol Use Disorder,Abuse, Alcohol,Abuse, Ethanol,Addiction, Alcohol,Alcohol Use Disorders,Chronic Alcoholic Intoxication,Dependence, Alcohol,Intoxication, Chronic Alcoholic,Use Disorders, Alcohol
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph
D016022 Case-Control Studies Comparisons that start with the identification of persons with the disease or outcome of interest and a control (comparison, referent) group without the disease or outcome of interest. The relationship of an attribute is examined by comparing both groups with regard to the frequency or levels of outcome over time. Case-Base Studies,Case-Comparison Studies,Case-Referent Studies,Matched Case-Control Studies,Nested Case-Control Studies,Case Control Studies,Case-Compeer Studies,Case-Referrent Studies,Case Base Studies,Case Comparison Studies,Case Control Study,Case Referent Studies,Case Referrent Studies,Case-Comparison Study,Case-Control Studies, Matched,Case-Control Studies, Nested,Case-Control Study,Case-Control Study, Matched,Case-Control Study, Nested,Case-Referent Study,Case-Referrent Study,Matched Case Control Studies,Matched Case-Control Study,Nested Case Control Studies,Nested Case-Control Study,Studies, Case Control,Studies, Case-Base,Studies, Case-Comparison,Studies, Case-Compeer,Studies, Case-Control,Studies, Case-Referent,Studies, Case-Referrent,Studies, Matched Case-Control,Studies, Nested Case-Control,Study, Case Control,Study, Case-Comparison,Study, Case-Control,Study, Case-Referent,Study, Case-Referrent,Study, Matched Case-Control,Study, Nested Case-Control
D050486 Serotonin Plasma Membrane Transport Proteins Sodium chloride-dependent neurotransmitter symporters located primarily on the PLASMA MEMBRANE of serotonergic neurons. They are different than SEROTONIN RECEPTORS, which signal cellular responses to SEROTONIN. They remove SEROTONIN from the EXTRACELLULAR SPACE by high affinity reuptake into PRESYNAPTIC TERMINALS. Regulates signal amplitude and duration at serotonergic synapses and is the site of action of the SELECTIVE SEROTONIN REUPTAKE INHIBITORS. Neurotransmitter Transport Proteins, Serotonin-Specific,Neurotransmitter Transporters, Serotonin-Specific,Serotonin Plasma Membrane Transporter Proteins,5-Hydroxytryptamine Plasma Membrane Transport Protein,5HT Transporter,Platelet Serotonin Transporter,SERT Proteins,SLC6A4 Protein,Serotonectin,Serotonin Transporter,Serotonin Transporter, Platelets,Sodium-Dependent Serotonin Transporter,Solute Carrier Family 6, Member 4 Protein,5 Hydroxytryptamine Plasma Membrane Transport Protein,Neurotransmitter Transport Proteins, Serotonin Specific,Neurotransmitter Transporters, Serotonin Specific,Platelets Serotonin Transporter,Serotonin Transporter, Platelet,Serotonin Transporter, Sodium-Dependent,Serotonin-Specific Neurotransmitter Transporters,Sodium Dependent Serotonin Transporter,Transporter, Sodium-Dependent Serotonin
D055815 Young Adult A person between 19 and 24 years of age. Adult, Young,Adults, Young,Young Adults

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