Adolescence is a period of physical, psychological, and social development. Many older adolescents (18-24 years old) engage in high-risk behaviors such as unprotected sex, multiple sex partners, and drug use. This has caused an increase in the prevalence of human immunodeficiency virus infected (HIV+) adolescents. In addition, many HIV+ adolescents continue to engage in high-risk behaviors leading to a further HIV spread. Current assessments of risky decision-making in adolescents involve self-administered surveys concerning sexual behaviors and drug use. It is imperative that early markers of risky behaviors are identified so that effective interventions are implemented to reduce adolescent HIV transmission. This proposal will utilize non-invasive neuroimaging, such as arterial spin labeling (ASL), to quantitatively measure cerebral blood flow (CBF) within risky decision-making networks. Preliminary ASL studies have demonstrated that HIV diminishes CBF by 60% within risky decision-making areas. We will also use computer based neurobehavioral tests that simulate real-life risky decision making situations. Correlations between neuroimaging and neurobehavioral methods could provide us unique insights into the mechanisms that fuel the adolescent HIV epidemic. The overall direct impact of our research will be: 1) an increase in our knowledge concerning the interaction between risky decision-making and HIV in adolescents 2) the development of early neuroimaging and neurobehavioral markers that assess the impact of HIV infection on risky decision- making networks. These results will assist nurses, clinicians, and public health practitioners in developing interventions that could save lives and reduce the spread of HIV in this vulnerable population.
An increase in the prevalence of HIV infected (HIV+) adolescents has occurred as many adolescents engage in high-risk behaviors such as unprotected sex, multiple sex partners, and drug use. This proposal will: 1) increase our knowledge concerning the interaction between risky decision-making and HIV in adolescents;2) develop early neuroimaging and neurobehavioral markers to assess the impact of HIV on risky behaviors. These results will assist practitioners in developing effective interventions to reduce adolescent HIV transmission.
|Day, Gregory S; Gordon, Brian A; Perrin, Richard J et al. (2018) In vivo [18F]-AV-1451 tau-PET imaging in sporadic Creutzfeldt-Jakob disease. Neurology 90:e896-e906|
|Strain, Jeremy F; Burdo, Tricia H; Song, Sheng-Kwei et al. (2017) Diffusion Basis Spectral Imaging Detects Ongoing Brain Inflammation in Virologically Well-Controlled HIV+ Patients. J Acquir Immune Defic Syndr 76:423-430|
|Mehta, Sanjay R; Pérez-Santiago, Josué; Hulgan, Todd et al. (2017) Cerebrospinal fluid cell-free mitochondrial DNA is associated with HIV replication, iron transport, and mild HIV-associated neurocognitive impairment. J Neuroinflammation 14:72|
|Wright, Patrick W; Archambault, Angela S; Peek, Stacey et al. (2017) Functional connectivity alterations in a murine model of optic neuritis. Exp Neurol 295:18-22|
|Clifford, David B (2017) HIV-associated neurocognitive disorder. Curr Opin Infect Dis 30:117-122|
|Sanford, Ryan; Fernandez Cruz, Ana Lucia; Scott, Susan C et al. (2017) Regionally Specific Brain Volumetric and Cortical Thickness Changes in HIV-Infected Patients in the HAART Era. J Acquir Immune Defic Syndr 74:563-570|
|Obermeit, Lisa C; Beltran, Jessica; Casaletto, Kaitlin B et al. (2017) Evaluating the accuracy of self-report for the diagnosis of HIV-associated neurocognitive disorder (HAND): defining ""symptomatic"" versus ""asymptomatic"" HAND. J Neurovirol 23:67-78|
|Paul, Robert; Rhee, Gina; Baker, Laurie M et al. (2017) Effort and neuropsychological performance in HIV-infected individuals on stable combination antiretroviral therapy. J Neurovirol 23:725-733|
|Wang, Liang; Benzinger, Tammie L; Su, Yi et al. (2016) Evaluation of Tau Imaging in Staging Alzheimer Disease and Revealing Interactions Between ?-Amyloid and Tauopathy. JAMA Neurol 73:1070-7|
|Brier, Matthew R; McCarthy, John E; Benzinger, Tammie L S et al. (2016) Local and distributed PiB accumulation associated with development of preclinical Alzheimer's disease. Neurobiol Aging 38:104-111|
Showing the most recent 10 out of 64 publications