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. 2021 Jan 26;14(1):27.
doi: 10.1186/s12920-021-00873-7.

Association of PICK1 and BDNF variations with increased risk of methamphetamine dependence among Iranian population: a case-control study

Amir Tajbakhsh  1   2 , Maliheh Alimardani  2 , Mahla Asghari #  2 , Soheila Abedini #  2 , Sohrab Saghafi Khadem #  3 , Abolfazl Nesaei Bajestani  4 , Forough Alipoor  5 , Maryam Alidoust  2 , Amir Savardashtaki  6   7 , Peyman Hashemian  8   9 , Alireza Pasdar  10   11   12
Affiliations

Association of PICK1 and BDNF variations with increased risk of methamphetamine dependence among Iranian population: a case-control study

Amir Tajbakhsh et al. BMC Med Genomics. .

Abstract

Background: Genetic factors play an important role in susceptibility to methamphetamine dependency. In this line, protein that interact with C-kinase-1 (PICK1) and brain-derived neurotrophic factor (BDNF) genes are linked to methamphetamine dependence (substance use disorder). Thus, in a case-control study, we investigated the association between polymorphisms of PICK1 and BDNF genes and methamphetamine dependence in an Iranian population.

Methods: Total of 235 cases and 204 controls were recruited in a period between 2015 to 2018. The PICK1-rs713729, -rs2076369 and BDNF-rs6265 genotypes were determined via ARMS-PCR assay. Statistical analysis was performed, using SPSS 20.0, PHASE 2.1.1 program as well as SNP Analyzer 2.0.

Results: In the present study, two polymorphisms including PICK1-rs713729 (OR 1.38 (CI 1.08-1.52; P-value 0.004) in multiplicative and dominant models, and PICK1-rs2076369 (OR 1.31 (CI 1.10-1.56; P-value 0.002) in multiplicative, dominant and co-dominant models were associated with the risk of methamphetamine abuse. Moreover, haplotype analysis showed a significant association of haplotype AG (OR 2.50 (CI 1.50-4.16; P-value 0.0002) in dominant, recessive and co-dominant models, and haplotype TT (OR 0.67 (CI 0.50-0.91; P-value 0.009) in dominant and co-dominant models with the risk of methamphetamine abuse. None of the polymorphisms in this study had a high level of linkage disequilibrium.

Conclusion: Our findings indicate that the PICK1 gene polymorphism might affect the risk of methamphetamine dependency in our population.

Keywords: Addiction; And polymorphisms; Dopamine pathway; Drug abuse; Glutamate pathway; Substance dependence; Substance use disorder (SUD); Variations.

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Conflict of interest statement

All authors have read the manuscript and declared that they have no competing interest.

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