TY - JOUR KW - Dopamine KW - Genetic Predisposition to Disease KW - Genotype KW - Humans KW - Methylenetetrahydrofolate Reductase (NADPH2)/genetics KW - Opioid-Related Disorders/epidemiology/genetics KW - Polymorphism, Single Nucleotide KW - Prevalence KW - Retrospective Studies KW - Tennessee KW - Methylenetetrahydrofolate reductase (MTHFR) gene KW - Addiction KW - opioid use disorder AU - L. Cole AU - A. Cernasev AU - K. Webb AU - S. Kumar AU - A. S. Rowe A1 - AB - Background: Opioid Use Disorder (OUD) has been linked to dopamine and the neurological reward centers. Methylenetetrahydrofolate reductase (MTHFR) is an enzyme involved in the production of many neurotransmitters such as dopamine. As such, MTHFR variants that lead to decreased production of neurotransmitters may play a role in OUD. However, lacunae exist for characterizing the prevalence of the MTHFR mutations in an OUD population. The objective of this study was to determine prevalence of the MTHFR gene mutations in a rural Tennessean population with OUD. Methods: This study was a retrospective cohort of individuals with OUD that evaluated the prevalence of MTHFR variants. Patients were categorized as normal, homozygous C677T, heterozygous C677T, homozygous A1298C, or heterozygous A1298C. The primary outcome was a qualitative comparison of the prevalence of each of the MTHFR variants in our cohort to the publicly reported MTHR polymorphism prevalence. Secondary outcomes include race and ethnicity differences as well as stimulant use differences for each of the variants. Results: A total of 232 patients undergoing care for opioid use disorder were included in the study. Of those included, 30 patients had a normal MTHFR allele and 202 had a variant MTHFR allele. Overall, the prevalence of any MTHFR variant was 87.1% (95% CI 82.6-91.4%). When comparing those with a normal MTHFR allele to those with any MTHFR variant, there was no difference in age, sex, race and ethnicity, or stimulant use. Conclusion: The overall prevalence of MTHFR variants in patients with opioid use disorders is high. AD - Pathway Healthcare, LLC, 801 Hill Street, Springfield, TN 37172, USA.; Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, 301 S. Perimeter Park Drive, Suite 220, Nashville, TN 37211, USA.; Pathway Healthcare, LLC, 1000 Urban Center Drive, Suite 600, Birmingham, AL 35242, USA.; Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Ave, Memphis, TN 38163, USA.; Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, 1924 Alcoa Hwy, Box 117, Knoxville, TN 37920, USA. BT - International journal of environmental research and public health C5 - Healthcare Disparities; Opioids & Substance Use CP - 6 DO - 10.3390/ijerph19063255 IS - 6 JF - International journal of environmental research and public health LA - eng M1 - Journal Article N2 - Background: Opioid Use Disorder (OUD) has been linked to dopamine and the neurological reward centers. Methylenetetrahydrofolate reductase (MTHFR) is an enzyme involved in the production of many neurotransmitters such as dopamine. As such, MTHFR variants that lead to decreased production of neurotransmitters may play a role in OUD. However, lacunae exist for characterizing the prevalence of the MTHFR mutations in an OUD population. The objective of this study was to determine prevalence of the MTHFR gene mutations in a rural Tennessean population with OUD. Methods: This study was a retrospective cohort of individuals with OUD that evaluated the prevalence of MTHFR variants. Patients were categorized as normal, homozygous C677T, heterozygous C677T, homozygous A1298C, or heterozygous A1298C. The primary outcome was a qualitative comparison of the prevalence of each of the MTHFR variants in our cohort to the publicly reported MTHR polymorphism prevalence. Secondary outcomes include race and ethnicity differences as well as stimulant use differences for each of the variants. Results: A total of 232 patients undergoing care for opioid use disorder were included in the study. Of those included, 30 patients had a normal MTHFR allele and 202 had a variant MTHFR allele. Overall, the prevalence of any MTHFR variant was 87.1% (95% CI 82.6-91.4%). When comparing those with a normal MTHFR allele to those with any MTHFR variant, there was no difference in age, sex, race and ethnicity, or stimulant use. Conclusion: The overall prevalence of MTHFR variants in patients with opioid use disorders is high. PY - 2022 SN - 1660-4601; 1661-7827; 1660-4601 SP - 3255. doi: 10.3390/ijerph19063255 T1 - A Study of the MTHFR Gene Prevalence in a Rural Tennessee Opioid Use Disorder Treatment Center Population T2 - International journal of environmental research and public health TI - A Study of the MTHFR Gene Prevalence in a Rural Tennessee Opioid Use Disorder Treatment Center Population U1 - Healthcare Disparities; Opioids & Substance Use U2 - 35328943 U3 - 10.3390/ijerph19063255 VL - 19 VO - 1660-4601; 1661-7827; 1660-4601 Y1 - 2022 Y2 - Mar 10 ER -