Related Experiment Videos
Neurological and neuropathological features of human immunodeficiency virus infection in children
L G Epstein1, L R Sharer, J Goudsmit
1Department of Neurosciences, UMD-New Jersey Medical School, Newark 07103-2757.
Insights
Human immunodeficiency virus (HIV) can cause a progressive encephalopathy in children, leading to severe neurological deficits and poor outcomes. Research is needed to understand HIV transmission to prevent childhood infections.
Area of Science:
- Neurology
- Virology
- Pediatrics
Background:
- A significant percentage of infants and children with human immunodeficiency virus (HIV) develop progressive encephalopathy.
- HIV antigen expression in cerebrospinal fluid correlates with this neurological condition.
- Neuropathological findings include unique virus-laden macrophages and multinucleated giant cells.
Purpose of the Study:
- To investigate the cause of progressive encephalopathy in children with HIV infection.
- To highlight the clinical manifestations and poor prognosis associated with HIV-related encephalopathy.
- To emphasize the need for research into mother-to-infant HIV transmission.
Main Methods:
- Clinical observation of HIV-infected children with neurological symptoms.
- Analysis of cerebrospinal fluid for HIV antigen expression.
- Neuropathological examination of brain tissue.
Main Results:
- Progressive encephalopathy presents with loss of developmental milestones, impaired brain growth, and motor dysfunction.
- HIV antigen presence in CSF is linked to encephalopathy development.
- Primary HIV brain infection is hypothesized as the cause, distinct from opportunistic infections.
Conclusions:
- HIV-related progressive encephalopathy in children has a poor, often fatal, prognosis.
- The findings support a primary viral brain infection mechanism.
- Urgent research into mother-to-infant HIV transmission is crucial for prevention and treatment strategies.
Abstract:
A progressive encephalopathy occurs in 30 to 50% of infants and children infected with the human immunodeficiency virus (HIV). The expression of HIV antigen in the cerebrospinal fluid appears to correlate with the clinical occurrence of progressive encephalopathy. The signs of progressive encephalopathy in children with HIV infection, including loss of developmental milestones, impaired brain growth, and progressive motor dysfunction, indicate a poor prognosis and almost invariably a fatal outcome. Neuropathological findings in these children, including virus-laden macrophages and multinucleated giant cells are unique to this condition. Opportunistic or reactivated latent infections and neoplasms of brain occur in children with HIV infection but are uncommon. These findings support the hypothesis that the progressive encephalopathy observed in HIV-infected children is caused by primary infection of the brain with this virus. Epidemiological data predict increasing numbers of HIV-infected women and children. Research aimed at an understanding of the mechanism(s) of mother-to-infant transmission of HIV infection is urgently needed so that strategies for the prevention and treatment of such infection in children may be planned.