Haptoglobin and Malaria Protection
Author Information
Author(s): Cox Sharon E., Doherty Conor, Atkinson Sarah H., Nweneka Chidi V., Fulford Anthony J.C., Ghattas Hala, Rockett Kirk A., Kwiatkowski Dominic P., Prentice Andrew M.
Primary Institution: Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine (LSHTM), London, United Kingdom
Hypothesis
The A-61C SNP in the haptoglobin promoter is associated with protection from malaria in Gambian children.
Conclusion
The A-61C allele is linked to decreased risk of malaria in older children, potentially due to its association with the Hp2 allele.
Supporting Evidence
- The A-61C SNP was found to be highly associated with the Hp2 allele.
- Children with one copy of haplotype 'D' had a significantly decreased risk of malaria.
- The protective effect of the A-61C allele was limited to older children.
Takeaway
This study found that a specific gene variant can help protect older children from getting malaria.
Methodology
The study involved active surveillance of malaria in Gambian children aged 10-72 months, assessing the association between haptoglobin genotypes and malaria risk.
Limitations
The study did not detect any homozygotes for the -61C allele, which may limit the generalizability of the findings.
Participant Demographics
Children aged 10-72 months from rural villages in The Gambia.
Statistical Information
P-Value
p=0.002
Confidence Interval
[95% CI 0.24–0.73]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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