Biomarkers and neurodevelopment in perinatally HIV-infected or exposed youth: A structural equation model analysis

Suad Kapetanovic, Ray Griner, Bret Zeldow, Sharon Nichols, Erin Leister, Harris A. Gelbard, Tracie L. Miller, Rohan Hazra, Armando J. Mendez, Kathleen Malee, Betsy Kammerer, Paige L. Williams

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Objective: To examine the relationship between markers of vascular dysfunction and neurodevelopmental outcomes in perinatally HIV-infected (PHIV+) and perinatally HIV-exposed but uninfected (PHEU) youth. Design: Cross-sectional design within a prospective, 15-site US-based cohort study. Methods: Neurodevelopmental outcomes were evaluated in relation to nine selected vascular biomarkers in 342 youth (212 PHIV+, 130 PHEU). Serum levels were assessed for adiponectin, C-reactive protein (CRP), fibrinogen, interleukin-6 (IL-6), soluble vascular cell adhesion molecule-1 (sVCAM-1), E-selectin (sE-selectin), monocyte chemoattractant protein (sMCP-1), intercellular adhesion molecule-1 (sICAM-1), and P-selectin (sP-selectin). The Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) was administered at entry, yielding a Full-Scale IQ score, and four index scores. Factor analysis was conducted to reduce the biomarkers to fewer factors with related biological roles. Structural equation models (SEMs) were used to measure associations between resulting factors and WISC-IV scores. Results: Mean participant age was 11.4 years, 54% were female, 70% black. The nine biomarkers were clustered into three factor groups: F1 (fibrinogen, CRP, and IL-6); F2 (sICAM-1 and sVCAM-1); and F3 (MCP-1, sP-selectin, and sE-selectin). Adiponectin showed little correlation with any factor. SEMs revealed significant negative association of F1 with WISC-IV processing speed score in the total cohort. This effect remained significant after adjusting for HIV status and other potential confounders. A similar association was observed when restricted to PHIV+ participants in both unadjusted and adjusted SEMs. Conclusion: Aggregate measures of fibrinogen, CRP, and IL-6 may serve as a latent biomarker associated with relatively decreased processing speed in both PHIV+ and PHEU youth.

Original languageEnglish (US)
Pages (from-to)355-364
Number of pages10
JournalAIDS
Volume28
Issue number3
DOIs
StatePublished - Jan 28 2014

Keywords

  • HIV-affected children
  • Inflammatory markers
  • Neurodevelopmental outcomes
  • Perinatal HIV infection

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Infectious Diseases

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    Kapetanovic, S., Griner, R., Zeldow, B., Nichols, S., Leister, E., Gelbard, H. A., Miller, T. L., Hazra, R., Mendez, A. J., Malee, K., Kammerer, B., & Williams, P. L. (2014). Biomarkers and neurodevelopment in perinatally HIV-infected or exposed youth: A structural equation model analysis. AIDS, 28(3), 355-364. https://doi.org/10.1097/QAD.0000000000000072