Purpose Of Review: The purpose of this study is to summarize recent advances in ageing and neuroAIDS by reviewing relevant articles from the preceding 18 months from PubMed and PsycINFO databases.
Recent Findings: The success of combination antiretroviral therapy (cART) has led to ageing of the HIV-infected population, which in turn contributes to the prevalence of HIV-associated neurocognitive disorder (HAND). Biomedical advances continue to clarify the pathophysiology of HAND despite effective cART, including chronic inflammatory and neurovascular causes. In recent months, associations between HAND and nonneurological medical diseases have been identified, as well as linkage to neuroimaging in those ageing with HIV. Developing effective screening tools to detect impairment remains an important scientific gap, although promoting factors associated with successful cognitive ageing is emerging as a possible means of enhancing quality of life.
Summary: A greater understanding of HAND pathophysiology among treated individuals with suppressed virus will aid in explaining the high prevalence of HAND despite effective cART and allow for development of novel targeted interventions. Neuroimaging and other biomarkers show promise in discerning HAND from age-associated cognitive disorders. Effective screening tools remain critically needed. Together, this work will inform promising strategies needed to address issues pertinent to an expanding group of older patients living with HIV.
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http://dx.doi.org/10.1097/COH.0000000000000104 | DOI Listing |
bioRxiv
September 2024
Department of Neurology, Massachusetts General Hospital, Boston, MA, 02115.
Microglia are critical innate immune cells of the brain. targeting of microglia using gene-delivery systems is crucial for studying brain physiology and developing gene therapies for neurodegenerative diseases and other brain disorders such as NeuroAIDS. Historically, microglia have been extremely resistant to transduction by viral vectors, including adeno-associated virus (AAV) vectors.
View Article and Find Full Text PDFViruses
June 2023
Department of Psychiatry, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.
We determined the prevalence of Alzheimer's disease (AD) pathological hallmarks, amyloid-β and phosphorylated-Tau, in autopsied brains of 49 people with HIV (PWH) (ages: 50-68; mean age = 57.0) from the National NeuroAIDS Tissue Consortium and in a comparative cohort of 55 people without HIV (PWoH) from the UC San Diego Alzheimer's Disease Research Center (17 controls, 14 mild cognitive impairment, 24 AD; ages: 70-102, mean age = 88.7).
View Article and Find Full Text PDFAIDS Res Hum Retroviruses
January 2024
Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, La Jolla, CA, USA.
The concept of vulnerability in bioethics was first referenced in 1979, when the Belmont Report highlighted the need for special consideration of certain populations in the application of its general principles of respect for persons, beneficence, and justice in research with human participants. Since then, a body of literature has emerged regarding the content, status, and scope, as well as ethical and practical implications of vulnerability in biomedical research. The social history of HIV treatment development has at various points reflected and actively influenced bioethics' debate on vulnerability.
View Article and Find Full Text PDFOpen Forum Infect Dis
January 2023
Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Background: Conflicting evidence exists on the impact of cannabis use on antiretroviral therapy (ART) adherence among people with human immunodeficiency virus (PWH). We leveraged data collected among older PWH to characterize longitudinal associations between cannabis use and ART adherence.
Methods: AIDS Clinical Trials Group (ACTG) A5322 study participants were categorized as <100% (≥1 missed dose in past 7 days) or 100% (no missed doses) ART adherent.
J Med Ethics
May 2023
Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
The Last Gift is an observational HIV cure-related research study conducted with people with HIV at the end of life (EOL) at the University of California San Diego. Participants agree to voluntarily donate blood and other biospecimens while living and their bodies for a rapid research autopsy postmortem to better understand HIV reservoir dynamics throughout the entire body. The Last Gift study was initiated in 2017.
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