Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., Virginia Polytech Institute and State University 2012
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  Previous Appointments & Affiliations

  • Assistant Professor in Psychiatry and Behavioral Sciences, Psychiatry & Behavioral Sciences, Clinical Science Departments 2018 - 2020
• Research
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  Selected Grants

  • Modeling the effects of chronic marijuana use on neuroinflammation and HIV-related neuronal injury awarded by National Institutes of Health 2020 - 2025
  • Role of cannabis on HIV-related cognitive impairment: a brain connectomics study awarded by National Institutes of Health 2018 - 2024
  • MRI data fusion to investigate effects of drug abuse on HIV neurological complications awarded by National Institutes of Health 2018 - 2023
  • A Systems Biology Approach to HIV-associated Neurocognitive Impairment: Role of Drug Abuse and Neuroinflammation awarded by National Institutes of Health 2016 - 2021
  • Cognitive Training to Reduce Impulsivity in HIV-infected Cocaine Users awarded by National Institutes of Health 2016 - 2019
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Hall, Shana A., Ryan P. Bell, Syam Gadde, Sheri L. Towe, Muhammad Tauseef Nadeem, Peter S. McCann, Allen W. Song, and Christina S. Meade. “Strengthened and posterior-shifted structural rich-club organization in people who use cocaine.” Drug Alcohol Depend 235 (June 1, 2022): 109436. https://doi.org/10.1016/j.drugalcdep.2022.109436.
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    • Bell, Ryan P., Christina S. Meade, Syam Gadde, Sheri L. Towe, Shana A. Hall, and Nan-Kuei Chen. “Principal component analysis denoising improves sensitivity of MR diffusion to detect white matter injury in neuroHIV.” J Neuroimaging 32, no. 3 (May 2022): 544–53. https://doi.org/10.1111/jon.12965.
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    • Xu, Yunan, Sheri L. Towe, Shakiera T. Causey, Paul A. Dennis, and Christina S. Meade. “Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study.” Exp Clin Psychopharmacol 30, no. 1 (February 2022): 39–50. https://doi.org/10.1037/pha0000423.
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    • Hall, Shana A., Ryan P. Bell, Simon W. Davis, Sheri L. Towe, Taylor P. Ikner, and Christina S. Meade. “Human immunodeficiency virus-related decreases in corpus callosal integrity and corresponding increases in functional connectivity.” Hum Brain Mapp 42, no. 15 (October 15, 2021): 4958–72. https://doi.org/10.1002/hbm.25592.
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    • Sui, Jing, Xiang Li, Ryan P. Bell, Sheri L. Towe, Syam Gadde, Nan-Kuei Chen, and Christina S. Meade. “Structural and Functional Brain Abnormalities in Human Immunodeficiency Virus Disease Revealed by Multimodal Magnetic Resonance Imaging Fusion: Association With Cognitive Function.” Clin Infect Dis 73, no. 7 (October 5, 2021): e2287–93. https://doi.org/10.1093/cid/ciaa1415.
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    • Meade, Christina S., Xiang Li, Sheri L. Towe, Ryan P. Bell, Vince D. Calhoun, and Jing Sui. “Brain multimodal co-alterations related to delay discounting: a multimodal MRI fusion analysis in persons with and without cocaine use disorder.” Bmc Neurosci 22, no. 1 (August 20, 2021): 51. https://doi.org/10.1186/s12868-021-00654-z.
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    • Xu, Yunan, Sheri L. Towe, Shakiera T. Causey, and Christina S. Meade. “Using mobile health technologies to test the association of cocaine use with sexual desire and risky sexual behaviors among people with and without HIV who use illicit stimulants.” Drug Alcohol Depend 225 (August 1, 2021): 108744. https://doi.org/10.1016/j.drugalcdep.2021.108744.
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    • Hall, Shana A., Sheri L. Towe, M Tauseef Nadeem, Andrea L. Hobkirk, Bennett W. Hartley, Rosa Li, Scott A. Huettel, and Christina S. Meade. “Hypoactivation in the precuneus and posterior cingulate cortex during ambiguous decision making in individuals with HIV.” J Neurovirol 27, no. 3 (June 2021): 463–75. https://doi.org/10.1007/s13365-021-00981-1.
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    • Towe, Sheri L., Catherine A. Sullivan, Mehri S. McKellar, and Christina S. Meade. “Examining the Potential of Pre-exposure Prophylaxis (PrEP) for HIV Prevention in a Community Sample of Persons Who Use Stimulants Living in the Southern United States.” Aids Behav 25, no. 5 (May 2021): 1480–89. https://doi.org/10.1007/s10461-020-02987-y.
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    • Towe, Sheri L., Jeremiah T. Hartsock, Yunan Xu, and Christina S. Meade. “Web-Based Cognitive Training to Improve Working Memory in Persons with Co-Occurring HIV Infection and Cocaine Use Disorder: Outcomes from a Randomized Controlled Trial.” Aids Behav 25, no. 5 (May 2021): 1542–51. https://doi.org/10.1007/s10461-020-02993-0.
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    • Xu, Yunan, Yizi Lin, Ryan P. Bell, Sheri L. Towe, John M. Pearson, Tauseef Nadeem, Cliburn Chan, and Christina S. Meade. “Machine learning prediction of neurocognitive impairment among people with HIV using clinical and multimodal magnetic resonance imaging data.” J Neurovirol 27, no. 1 (February 2021): 1–11. https://doi.org/10.1007/s13365-020-00930-4.
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    • Hall, Shana A., Zahra Lalee, Ryan P. Bell, Sheri L. Towe, and Christina S. Meade. “Synergistic effects of HIV and marijuana use on functional brain network organization.” Prog Neuropsychopharmacol Biol Psychiatry 104 (January 10, 2021): 110040. https://doi.org/10.1016/j.pnpbp.2020.110040.
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    • Causey, Shakiera T., Sheri L. Towe, Jeremiah Hartsock, Yunan Xu, and Christina S. Meade. “Perceived Healthcare Access among Persons with and without HIV Who Use Illicit Stimulants: The Role of Cumulative Risk.” Subst Use Misuse 56, no. 9 (2021): 1387–96. https://doi.org/10.1080/10826084.2021.1928211.
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    • Towe, Sheri L., Christina S. Meade, Christine C. Cloak, Ryan P. Bell, Julian Baptiste, and Linda Chang. “Reciprocal Influences of HIV and Cannabinoids on the Brain and Cognitive Function.” J Neuroimmune Pharmacol 15, no. 4 (December 2020): 765–79. https://doi.org/10.1007/s11481-020-09921-y.
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    • Bell, Ryan P., Sheri L. Towe, Zahra Lalee, Scott A. Huettel, and Christina S. Meade. “Neural sensitivity to risk in adults with co-occurring HIV infection and cocaine use disorder.” Cogn Affect Behav Neurosci 20, no. 4 (August 2020): 859–72. https://doi.org/10.3758/s13415-020-00806-4.
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    • Meade, Christina S., Ryan P. Bell, Sheri L. Towe, and Shana A. Hall. “Cocaine-related alterations in fronto-parietal gray matter volume correlate with trait and behavioral impulsivity.” Drug Alcohol Depend 206 (January 1, 2020): 107757. https://doi.org/10.1016/j.drugalcdep.2019.107757.
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    • Meade, Christina S., Ryan P. Bell, Sheri L. Towe, Nan-Kuei Chen, Andrea L. Hobkirk, and Scott A. Huettel. “Synergistic effects of marijuana abuse and HIV infection on neural activation during a cognitive interference task.” Addict Biol 24, no. 6 (November 2019): 1235–44. https://doi.org/10.1111/adb.12678.
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    • Towe, Sheri L., Olivia E. Horton, Bianca Martin, and Christina S. Meade. “A Comparison of Motivations for Marijuana Use in HIV-Positive and HIV-Negative Adults.” Aids Behav 22, no. 9 (September 2018): 2807–14. https://doi.org/10.1007/s10461-018-2123-4.
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    • Bell, Ryan P., Laura L. Barnes, Sheri L. Towe, Nan-Kuei Chen, Allen W. Song, and Christina S. Meade. “Structural connectome differences in HIV infection: brain network segregation associated with nadir CD4 cell count.” J Neurovirol 24, no. 4 (August 2018): 454–63. https://doi.org/10.1007/s13365-018-0634-4.
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    • Skalski, Linda M., Sheri L. Towe, Kathleen J. Sikkema, and Christina S. Meade. “Memory Impairment in HIV-Infected Individuals with Early and Late Initiation of Regular Marijuana Use.” Aids Behav 22, no. 5 (May 2018): 1596–1605. https://doi.org/10.1007/s10461-017-1898-z.
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    • Pacek, Lauren R., Sheri L. Towe, Andrea L. Hobkirk, Denis Nash, and Renee D. Goodwin. “Frequency of Cannabis Use and Medical Cannabis Use Among Persons Living With HIV in the United States: Findings From a Nationally Representative Sample.” Aids Educ Prev 30, no. 2 (April 2018): 169–81. https://doi.org/10.1521/aeap.2018.30.2.169.
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    • Meade, Christina S., Merideth Addicott, Andrea L. Hobkirk, Sheri L. Towe, Nan-Kuei Chen, Sriramkumar Sridharan, and Scott A. Huettel. “Cocaine and HIV are independently associated with neural activation in response to gain and loss valuation during economic risky choice.” Addict Biol 23, no. 2 (March 2018): 796–809. https://doi.org/10.1111/adb.12529.
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    • Meade, Christina S., Andrea L. Hobkirk, Sheri L. Towe, Nan-Kuei Chen, Ryan P. Bell, and Scott A. Huettel. “Cocaine dependence modulates the effect of HIV infection on brain activation during intertemporal decision making.” Drug Alcohol Depend 178 (September 1, 2017): 443–51. https://doi.org/10.1016/j.drugalcdep.2017.05.043.
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    • Towe, Sheri L., Puja Patel, and Christina S. Meade. “The Acceptability and Potential Utility of Cognitive Training to Improve Working Memory in Persons Living With HIV: A Preliminary Randomized Trial.” J Assoc Nurses Aids Care 28, no. 4 (July 2017): 633–43. https://doi.org/10.1016/j.jana.2017.03.007.
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    • Cordero, Daniella M., Sheri L. Towe, Nan-Kuei Chen, Kevin R. Robertson, David J. Madden, Scott A. Huettel, and Christina S. Meade. “Cocaine dependence does not contribute substantially to white matter abnormalities in HIV infection.” J Neurovirol 23, no. 3 (June 2017): 441–50. https://doi.org/10.1007/s13365-017-0512-5.
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    • Hobkirk, Andréa L., Sheri L. Towe, Puja Patel, and Christina S. Meade. “Food Insecurity Is Associated with Cognitive Deficits Among HIV-Positive, But Not HIV-Negative, Individuals in a United States Sample.” Aids Behav 21, no. 3 (March 2017): 783–91. https://doi.org/10.1007/s10461-016-1514-7.
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    • Yechoor, Nirupama, Sheri L. Towe, Kevin R. Robertson, Daniel Westreich, Noeline Nakasujja, and Christina S. Meade. “Utility of a brief computerized battery to assess HIV-associated neurocognitive impairment in a resource-limited setting.” J Neurovirol 22, no. 6 (December 2016): 808–15. https://doi.org/10.1007/s13365-016-0456-1.
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    • Skalski, Linda M., Sheri L. Towe, Kathleen J. Sikkema, and Christina S. Meade. “The Impact of Marijuana Use on Memory in HIV-Infected Patients: A Comprehensive Review of the HIV and Marijuana Literatures.” Curr Drug Abuse Rev 9, no. 2 (2016): 126–41. https://doi.org/10.2174/1874473709666160502124503.
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    • Hobkirk, Andréa L., Sheri L. Towe, Ryan Lion, and Christina S. Meade. “Primary and Secondary HIV Prevention Among Persons with Severe Mental Illness: Recent Findings.” Curr Hiv/Aids Rep 12, no. 4 (December 2015): 406–12. https://doi.org/10.1007/s11904-015-0294-4.
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    • Towe, Sheri L., Andréa L. Hobkirk, Daniel G. Ye, and Christina S. Meade. “Adaptation of the Monetary Choice Questionnaire to accommodate extreme monetary discounting in cocaine users.” Psychol Addict Behav 29, no. 4 (December 2015): 1048–55. https://doi.org/10.1037/adb0000101.
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    • Watt, Melissa H., Bronwyn Myers, Sheri L. Towe, and Christina S. Meade. “The mental health experiences and needs of methamphetamine users in Cape Town: A mixed methods study.” S Afr Med J 105, no. 8 (September 21, 2015): 685–88. https://doi.org/10.7196/samjnew.7910.
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    • Walker, Denise D., Robert S. Stephens, Sheri Towe, Kelsey Banes, and Roger Roffman. “Maintenance Check-ups Following Treatment for Cannabis Dependence.” J Subst Abuse Treat 56 (September 2015): 11–15. https://doi.org/10.1016/j.jsat.2015.03.006.
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    • Meade, Christina S., Sheri L. Towe, Melissa H. Watt, Ryan R. Lion, Bronwyn Myers, Donald Skinner, Stephen Kimani, and Desiree Pieterse. “Addiction and treatment experiences among active methamphetamine users recruited from a township community in Cape Town, South Africa: A mixed-methods study.” Drug Alcohol Depend 152 (July 1, 2015): 79–86. https://doi.org/10.1016/j.drugalcdep.2015.04.016.
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    • Meade, Christina S., Sheri L. Towe, Linda M. Skalski, and Kevin R. Robertson. “Independent effects of HIV infection and cocaine dependence on neurocognitive impairment in a community sample living in the southern United States.” Drug Alcohol Depend 149 (April 1, 2015): 128–35. https://doi.org/10.1016/j.drugalcdep.2015.01.034.
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    • Meade, Christina S., Sheri L. Towe, Melissa H. Watt, Andrea L. Hobkirk, Donald Skinner, Bronwyn Myers, Stephen M. Kimani, and Desiree Pieterse. “HIV testing behaviors and attitudes among community recruited methamphetamine users in a South African township.” Aids Behav 19, no. 1 (January 2015): 186–91. https://doi.org/10.1007/s10461-014-0795-y.
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    • Fox, Courtney L., Sheri L. Towe, Robert S. Stephens, Denise D. Walker, and Roger A. Roffman. “Motives for cannabis use in high-risk adolescent users.” Psychol Addict Behav 25, no. 3 (September 2011): 492–500. https://doi.org/10.1037/a0024331.
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    • Walker, Denise D., Robert Stephens, Roger Roffman, Josephine Demarce, Brian Lozano, Sheri Towe, and Belinda Berg. “Randomized controlled trial of motivational enhancement therapy with nontreatment-seeking adolescent cannabis users: a further test of the teen marijuana check-up.” Psychol Addict Behav 25, no. 3 (September 2011): 474–84. https://doi.org/10.1037/a0024076.
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