Phenotypic characterization of NK cells in 5-year-old children exposed to maternal HIV and antiretroviral therapy in early-life
2024

Study of NK Cells in Children Exposed to Maternal HIV and Antiretroviral Therapy

Sample size: 133 publication 10 minutes Evidence: moderate

Author Information

Author(s): Mataramvura Hope, JÓ“ger Julia, Jordan-Paiz Ana, Mazengera Lovemore Ronald, Gumbo Felicity Zvanyadza, Bunders Madeleine J., Duri Kerina

Primary Institution: University of Zimbabwe

Hypothesis

How do NK cell subsets in HIV-exposed uninfected children compare to those in HIV-unexposed uninfected children at age five?

Conclusion

Early-life HIV/ART exposure may not result in major changes in NK cell subsets at 5 years of age.

Supporting Evidence

  • Total NK cell proportions were similar between HEU and HUU children.
  • HEULT children had lower frequencies of CD56dim NK cells compared to HEUMT children.
  • CD56dim NK cell counts correlated with recurrent respiratory infections in HUU children.

Takeaway

The study looked at how certain immune cells in children exposed to HIV and medication compare to those not exposed, finding no big differences at age five.

Methodology

Multi-parametric flow cytometry was used to analyze NK cell subsets in children.

Potential Biases

Potential bias due to the limited sample size in the HEI group.

Limitations

The study lacked samples from the same participants at an earlier age to analyze NK cell dynamics.

Participant Demographics

Children aged 4-5.5 years, with 48.9% being female.

Statistical Information

P-Value

p=0.002

Confidence Interval

CI: 1.2-28.0

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/s12865-024-00674-4

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