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.
|Heaps-Woodruff, J M; Wright, P W; Ances, B M et al. (2016) The impact of human immune deficiency virus and hepatitis C coinfection on white matter microstructural integrity. J Neurovirol 22:389-99|
|Cooley, Sarah A; Paul, Robert H; Fennema-Notestine, Christine et al. (2016) Apolipoprotein E Îµ4 genotype status is not associated with neuroimaging outcomes in a large cohort of HIV+ individuals. J Neurovirol 22:607-614|
|Guha, Anika; Brier, Matthew R; Ortega, Mario et al. (2016) Topographies of Cortical and Subcortical Volume Loss in HIV and Aging in the cART Era. J Acquir Immune Defic Syndr 73:374-383|
|Fazeli, Pariya L; Moore, David J; Franklin, Donald R et al. (2016) Lower CSF AÎ² is Associated with HAND in HIV-Infected Adults with a Family History of Dementia. Curr HIV Res 14:324-30|
|Behrman-Lay, Ashley M; Paul, Robert H; Heaps-Woodruff, Jodi et al. (2016) Human immunodeficiency virus has similar effects on brain volumetrics and cognition in males and females. J Neurovirol 22:93-103|
|Wright, Patrick W; Pyakurel, Ashmit; Vaida, Florin F et al. (2016) Putamen volume and its clinical and neurological correlates in primary HIV infection. AIDS 30:1789-94|
|Ances, Beau M; Hoare, Jacqueline (2016) Perinatal HIV in the brain: Mission incomplete despite combination antiretroviral therapy. Neurology 86:13-4|
|Guha, Anika; Wang, Liang; Tanenbaum, Aaron et al. (2016) Intrinsic network connectivity abnormalities in HIV-infected individuals over age 60. J Neurovirol 22:80-7|
|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 38:104-11|
|Ma, Qing; Vaida, Florin; Wong, Jenna et al. (2016) Long-term efavirenz use is associated with worse neurocognitive functioning in HIV-infected patients. J Neurovirol 22:170-8|
Showing the most recent 10 out of 53 publications