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The common biomolecular mechanisms underlying addiction – CREB and ΔFosB – were reviewed by Eric J. Nestler in a 2013 review. [3] Genetics and mental disorders may precipitate the severity of a drug addiction. It is estimated that 50% of healthy individuals developing an addiction can trace the cause to genetic factors. [4]
Current evidence indicates that in both men and women, alcoholism is 50–60% genetically determined, leaving 40-50% for environmental influences. [ 8 ] In a review in 2001, McLellan et al. compared the diagnoses, heritability, etiology (genetic and environmental factors), pathophysiology, and response to treatments (adherence and relapse) of ...
Contemporary research in neurobiology (a branch of science that deals with the anatomy, [9] physiology, and pathology of nervous system) of addiction points to genetics as a major contributing factor to addiction vulnerability. It has been estimated that 40–60% of the vulnerability to developing an addiction is due to genetics.
Alcoholism is characterized by a wide range of symptoms including compulsive alcohol seeking and consumption, tolerance (resistance to the effects of alcohol after repeated consumption), and withdrawal symptoms such as irritability, profuse sweating, and uncontrollable shaking upon rapid cessation of drinking. [4]
Ondansetron and topiramate are supported by tentative evidence in people with certain genetic patterns. [169] [170] Evidence for ondansetron is stronger in people who have recently started to abuse alcohol. [169] Topiramate is a derivative of the naturally occurring sugar monosaccharide D-fructose.
Another important concern is the lack of evidence supporting the addictive personality label and the possibility of stigma. [2] While there is a medical consensus surrounding the genetic components of addiction, [5] there is no such consensus supporting the idea that specific personality types have a tendency towards addictive behaviors. [2]
Symptoms of drug addiction ... a phenomenon that can be due to genetic, ... Medications can be used in treatment to lessen withdrawal symptoms. Evidence has ...
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...