1. Higher soluble CD14 levels are associated with lower visuospatial memory performance in youth with HIV
- Author
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Julie J. Kim-Chang, Jordan N. Kohn, Maureen M. Goodenow, Patricia A. Garvie, John W. Sleasman, Kevin Donovan, Suzi Hong, Sharon Nichols, Steven Paul Woods, Guglielmo M. Venturi, Bernard M. Fischer, Matthew Shane Loop, and Rendina Hj
- Subjects
0301 basic medicine ,Adult ,Male ,CD14 ,Immunology ,Human immunodeficiency virus (HIV) ,Lipopolysaccharide Receptors ,HIV Infections ,medicine.disease_cause ,Lymphocyte Activation ,Spatial memory ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Text mining ,Antiretroviral Therapy, Highly Active ,medicine ,Immunology and Allergy ,Humans ,Cognitive Dysfunction ,030212 general & internal medicine ,Viral suppression ,Prospective Studies ,business.industry ,Puerto Rico ,Viral Load ,Mental Status and Dementia Tests ,Antiretroviral therapy ,United States ,CD4 Lymphocyte Count ,030104 developmental biology ,Infectious Diseases ,Cross-Sectional Studies ,Memory, Short-Term ,Solubility ,Space Perception ,Linear Models ,Visual Perception ,Female ,business ,Neurocognitive ,Biomarkers ,Immune activation - Abstract
HIV-associated neurocognitive disorders persist despite early antiretroviral therapy (ART) and optimal viral suppression. We examined the relationship between immunopathogenesis driven by various pathways of immune activation and discrete neurocognitive performance domains in youth with HIV (YWH).Observational cross-sectional study.YWH, ages 20-28 years, enrolled in Adolescent Medicine Trials Network 071/101 were assessed for biomarkers of macrophage, lymphocyte activation, and vascular inflammation using ELISA/multiplex assays. Standardized neurocognitive tests were performed, and demographically adjusted z-scores were combined to form indices of attention, motor, executive function, verbal, and visuospatial memory. Cross-sectional analysis of the relationship between 18 plasma inflammatory biomarkers and each neurocognitive domain was performed. Linear regression models were fit for each combination of log-transformed biomarker value and neurocognitive domain score, and were adjusted for demographics, socioeconomic status, substance use, depression, CD4 T-cell count, HIV viral load, and ART status.Study included 128 YWH [mean age 23.8 (SD 1.7) years, 86% men, 68% African American]. Verbal and visuospatial memory domains were most significantly impaired in the cohort (z = -1.59 and -1.0, respectively). Higher sCD14 was associated with impaired visuospatial memory, which remained robust after adjusting for other biomarkers, demographics, and HIV-associated covariates. Among biomarkers of vascular inflammation, sICAM-1 was negatively associated with verbal memory and attention, whereas sVCAM-1 was positively associated with executive function and visuospatial memory. Specific neurocognitive domains were not associated with sCD163, LPS, or CCL2 levels.Impaired visuospatial memory in YWH is associated with immune activation, as reflected by higher sCD14.
- Published
- 2019