Antiretroviral medications disrupt microglial phagocytosis of β-amyloid and increase its production by neurons: Implications for HIV-associated neurocognitive disorders
2011

Antiretroviral Medications and Their Impact on Brain Health

Sample size: 6 publication Evidence: moderate

Author Information

Author(s): Brian Giunta, Jared Ehrhart, Demian F. Obregon, Lucy Lam, Lisa Le, JingJi Jin, Francisco Fernandez, Jun Tan, R. Douglas Shytle

Primary Institution: University of South Florida

Hypothesis

Do antiretroviral medications affect the production and clearance of amyloid beta in the brain?

Conclusion

Antiretroviral medications increase the production of amyloid beta and inhibit its clearance by microglial cells, potentially contributing to cognitive decline in HIV-infected individuals.

Supporting Evidence

  • ART medications generally increase Aβ generation in cultured neuronal cells.
  • ART medications inhibit microglial phagocytosis of Aβ1-42 peptides.
  • The most significant effects were observed with combined ART treatments.

Takeaway

Some medicines used to treat HIV can make a substance in the brain called amyloid beta build up more and get cleaned up less, which might make it harder for people to think clearly.

Methodology

The study evaluated the effects of various antiretroviral medications on amyloid beta production in murine cells and microglial phagocytosis.

Potential Biases

Potential bias due to the focus on specific antiretroviral medications and their effects without considering broader treatment contexts.

Limitations

The study was limited to in vitro experiments and did not account for other brain cell types or factors.

Participant Demographics

Murine models were used, with no human participant demographics provided.

Statistical Information

P-Value

p < 0.05

Statistical Significance

p < 0.05

Digital Object Identifier (DOI)

10.1186/1756-6606-4-23

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