Journal
CURRENT NEUROPHARMACOLOGY
Volume 18, Issue 7, Pages 578-595Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1570159X17666191118125702
Keywords
Dopamine homeostasis; genetics; Precision Addiction Management (PAM); Reward Deficiency Syndrome (RDS); ethnic groups; gene guided therapy
Categories
Funding
- National Institute of Health (NIH) [AA021262, AI117970 DC CFAR, MD007597 RCMI, MD012318]
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Background: Over 100 people die daily from opioid overdose and $78.5B per year is spent on treatment efforts, however, the real societal cost is multifold greater. Alternative strategies to eradicate/manage drug misuse and addiction need consideration. The perception of opioid addiction as a social/criminal problem has evolved to evidence-based considerations of them as clinical disorders with a genetic basis. We present evaluations of the genetics of addiction with ancestry-specific risk profiles for consideration. Objective: Studies of gene variants associated with predisposition to substance use disorders (SUDs) are monolithic, and exclude many ethnic groups, especially Hispanics and African Americans. We evaluate gene polymorphisms that impact brain reward and predispose individuals to opioid addictions, with a focus on the dispa Methodology: PubMed and Google Scholar were searched for: Opioid Use Disorder (OUD), Genome-wide association studies (GWAS); genetic variants; polymorphisms, restriction fragment length polymorphisms (RFLP); genomics, epigenetics, race, ethnic group, ethnicity, ancestry, Caucasian/White, African American/Black, Hispanic, Asian, addictive behaviors, reward deficiency syndrome (RDS), mutation, insertion/deletion, and promotor region. Results: Many studies exclude non-White individuals. Studies that include diverse populations report ethnicity-specific frequencies of risk genes, with certain polymorphisms specifically associated with Caucasian and not African-American or Hispanic susceptibility to OUD or SUDs, and vice versa. Conclusion: To adapt precision medicine-based addiction management in a blended society, we propose that ethnicity/ ancestry- informed genetic variations must be analyzed to provide real precision-guided therapeutics with the intent to attenuate this uncontrollable fatal epidemic.
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