HIV-1 Evolution in a Patient with Slowly Progressing Disease
Author Information
Author(s): Skar Helena, Gutenkunst Ryan N., Wilbe Ramsay Karin, Alaeus Annette, Albert Jan, Leitner Thomas
Primary Institution: Department of Virology, Swedish Institute for Infectious Disease Control, Solna, Sweden
Hypothesis
How do HIV-1 subpopulation frequencies change over time in a treatment-naive patient?
Conclusion
HIV-1 subpopulation frequencies changed significantly over 1.5 years, but this did not imply directional or balancing selection.
Supporting Evidence
- 77 sequences of HIV-1 env were obtained from plasma samples.
- Phylogenetic analysis showed that the sequences clustered in six distinct subpopulations.
- Subpopulation frequencies remained constant over short time periods but fluctuated significantly over longer periods.
Takeaway
The study looked at how different groups of HIV-1 viruses changed in a patient over time, finding that while they changed a lot, they didn't seem to be competing to be the best.
Methodology
The study involved intensive sampling of HIV-1 sequences from a patient over a 32-day period and additional time points before and after.
Potential Biases
Potential biases may arise from the limited sampling and the specific patient characteristics.
Limitations
The study was limited by the small number of sequences obtained at certain time points.
Participant Demographics
The participant was a treatment-naive, asymptomatic male who had been HIV-1 infected for approximately 7 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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