Neurocognitive functioning in acute or early HIV infection

Area of Science:

• Neuroscience
• Infectious Diseases
• Psychology

Background:

• HIV infection can impact cognitive abilities.
• Understanding cognitive changes in early HIV infection is crucial for management.
• Previous research suggests a decline in neurocognitive function with chronic HIV.

Purpose of the Study:

• To investigate neurocognitive performance in individuals with acute or early HIV infection (AEH).
• To compare AEH neurocognitive performance with HIV-negative individuals and those with chronic HIV infection.
• To determine if AEH neurocognitive performance is intermediate between HIV-negative and chronically infected groups.

Main Methods:

• Comprehensive neurocognitive testing was performed on 39 AEH, 63 chronically HIV-infected, and 38 HIV-negative participants.
• Average domain deficit scores were calculated across seven neurocognitive domains.
• Nonparametric tests, including the Page test, were used to analyze group differences in neurocognitive functioning.

Main Results:

• A significant monotonic trend in neurocognitive functioning was observed across the groups (HIV-negative > AEH > chronic HIV).
• Chronically infected individuals performed significantly worse than both HIV-negative and AEH groups.
• AEH participants' neurocognitive performance was statistically indistinguishable from HIV-negative participants.

Conclusions:

• Neurocognitive functioning is significantly impaired in chronic HIV infection.
• Individuals with acute or early HIV infection do not show statistically significant cognitive deficits compared to HIV-negative individuals.
• While a trend suggests intermediate performance in AEH, further research may be needed to confirm subtle differences.