How Plasmodium vivax Causes White Blood Cell Clumping During Fever
Author Information
Author(s): Karunaweera Nadira, Wanasekara Deepani, Chandrasekharan Vishvanath, Mendis Kamini, Carter Richard
Primary Institution: Malaria Research Unit, Department of Parasitology, Faculty of Medicine, University of Colombo
Hypothesis
Can factors released during fever paroxysms in Plasmodium vivax infections cause white blood cell aggregation?
Conclusion
Leukocyte aggregation is linked to fever episodes in P. vivax infections and is driven by specific plasma factors.
Supporting Evidence
- Leukocyte aggregates were only observed with plasma from patients during fever.
- Specific cytokines and lipid fractions were identified as mediators of cell aggregation.
- Paroxysm plasma from non-immune patients induced significantly higher aggregation than from semi-immune patients.
Takeaway
When people get sick from a type of malaria called P. vivax, their blood cells can clump together, which might help the body fight the infection.
Methodology
Blood samples from healthy donors were mixed with plasma from malaria patients during fever episodes to observe white blood cell aggregation.
Potential Biases
Potential bias in selecting healthy donors and the specific conditions under which blood samples were collected.
Limitations
The study primarily focused on in vitro conditions and may not fully represent in vivo responses.
Participant Demographics
Included adult residents from both malaria-endemic and non-endemic regions of Sri Lanka.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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