Self-reported sleep disturbance is associated with lower CD4 count and 24-h urinary dopamine levels in ethnic minority women living with HIV

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Background: Sleep disturbance is associated with dopamine dysregulation, which can negatively impact immune status. Individuals living with HIV experience more sleep difficulties, and poor sleep may compound immune decrements associated with HIV infection. Little research has examined associations between sleep, dopamine, and immune status (CD4 count) in individuals with HIV. As ethnic minority women living with HIV (WLWH) are at heightened risk for HIV disease progression, we related sleep reports to both CD4 count and dopamine levels in a cohort of ethnic minority WLWH. Methods: Participants were 139 low-income WLWH (ages 20-62; 78.3% African-American or Caribbean) who reported both overall sleep quality and sleep disturbance on the Pittsburgh sleep quality index (PSQI). CD4 count and HIV viral load were measured via morning peripheral venous blood samples, and concentrations of dopamine were measured via 24-h urine collection. Covariates included HIV viral load, length of time since HIV diagnosis, HAART adherence, perceived stress and depression. Results: After controlling for all covariates, greater sleep disturbance was associated with significantly lower CD4 count (β= -20, p= .03) and lower levels of dopamine (β= -25, p= .04). Poorer overall sleep quality was marginally associated with lower CD4 count (β= -16, p= .08), and was not associated with dopamine. Conclusion: Our analyses suggest that sleep disturbance is independently related with immune status and dopamine levels in WLWH. Lower levels of dopamine may indicate neuroendocrine dysregulation and may impact immune and health status. Results highlight sleep disturbance rather than overall sleep quality as potentially salient to neuroendocrine and immune status in ethnic minority WLWH.

Original languageEnglish (US)
Pages (from-to)2647-2653
Number of pages7
JournalPsychoneuroendocrinology
Volume38
Issue number11
DOIs
StatePublished - Nov 1 2013

    Fingerprint

Keywords

  • CD4 count
  • Dopamine
  • HIV
  • Sleep

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Psychiatry and Mental health
  • Biological Psychiatry
  • Endocrine and Autonomic Systems

Cite this