Stimulant Use and Methylation in HIV
Study Details
Study Description
Brief Summary
This study will leverage extracted leukocyte DNA specimens from a completed NIH-funded project to examine the efficacy of a behavioral intervention model that reduced stimulant use on DNA methylation over 6 months.
Condition or Disease | Intervention/Treatment | Phase |
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Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Leukocyte DNA Samples Leukocyte DNA specimens extracted from participants enrolled in a completed NIH funded trial will be examined to determine if prior exposure to different behavioral interventions modifies DNA methylation patterns over 6 months. |
Outcome Measures
Primary Outcome Measures
- Neuroimmune Signaling [6 Months]
Decreased methylation of genes for genes relevant to neuroimmune signaling such as beta-2 (β2) adrenergic (i.e., ADRB2), glucocorticoid (i.e., NR3C1 and FKBP5), and oxytocin (i.e., OXTR) receptors as well as brain-derived neurotrophic factor (BDNF) promoters.
Secondary Outcome Measures
- DNA Methylation Pathways [6 Months]
Pathway Analyses examining alterations in methylation patterns relevant to immune and neural function.
- Immune Dysfunction [6 Month]
Soluble makers of monocyte activation such as soluble CD14 (sCD14) and inflammation such as soluble Tumor Necrosis Factor - Alpha Receptors I and II (sTNF-aRI and sTNF-aRII)
- Dysregulated Metabolism of Amino Acid Precursors for Neurotransmitters measured via high-performance liquid chromatography (HPLC) [6 Months]
Using HPLC, higher kynurenine/tryptophan (K/T) ratio indexes catabolism of tryptophan into kynurenine and other downstream catabolites versus serotonin over 6 months. Using HPLC, the phenylalanine/tyrosine ratio reflects decreased metabolism of tyrosine into catecholamines such as dopamine over 6 months.
Eligibility Criteria
Criteria
Inclusion Criteria:
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At least 18 years old
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Documentation of HIV-positive serostatus
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Speak English
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Biological verification of recent methamphetamine use
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Completion of at least three contingency management (CM) visits
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Self reported anal sex with a man in the past 12 months
Exclusion Criteria:
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Inability to provide informed consent, evidenced by cognitive impairment
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HIV negative serostatus
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | University of Miami | Miami | Florida | United States | 33136 |
Sponsors and Collaborators
- University of Miami
- New York University
- Northwestern University
- University of California, San Francisco
- National Institute on Drug Abuse (NIDA)
Investigators
- Principal Investigator: Adam W Carrico, PhD, University of Miami
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 20180865
- R01DA033854