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J Korean Med Assoc > Volume 49(2); 2006 > Article
Lee: The Biology of Alcohol Dependence

Abstract

Alcohol dependence (AD) is a chronically relapsing disease and has various biological etiologies. Neither genetics nor neurobiology explains the pathogenesis of AD exclusively. AD is a multifactorial disease. This article reviews the genetic and biological aspects of AD. Many candidate genes and neurotransmitters play important roles in AD. Further studies are needed to elucidate the biological mechanisms of AD. Also the treatment of AD should be individualized according to the patients's biological characteristics.

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Figure 1
Neurotransmitters involved in reward circuit of alcohol
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Figure 2
Brain regions involved in reward system
jkma-49-108-g002-l.jpg
Table 1
Result of genetic studies on neurotransmitters in alcohol dependence
jkma-49-108-i001-l.jpg
Table 2
Action of alcohol and neurotransmitters
jkma-49-108-i002-l.jpg


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