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August 8, 2026PLoS ONEOpen Access

Magnetic bead-based enhancement of qPCR detection rates in low-density Plasmodium falciparum samples: A comparative analysis of nucleic acid extraction methods

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Authors

RWRuo-qiao WenNWNing WeiFPFang Peng

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Overview

Randomized trial evaluates detection sensitivity of nucleic acid extraction methods in low-density Plasmodium falciparum infections, suggesting improvements for molecular surveillance.

Key Points

  • This study aims to evaluate three nucleic acid extraction methods to optimize detection of low-density Plasmodium falciparum infections.
  • Nucleic acids were extracted from 40 samples using three methods: M1 (silica membrane), M2 (red blood cell lysis), M3 (magnetic beads).
  • DNA yield was measured for each method; qPCR assessed amplification efficiency.
  • Detection sensitivity was compared via serial dilution experiments between methods M1 and M3.
  • M3 yielded a significantly higher DNA concentration (39.0 ± 7.57 ng/µL) compared to M1 (10.49 ± 2.73 ng/µL) and M2 (7.48 ± 1.76 ng/µL) (P < 0.0001).
  • qPCR showed that M3 had a template yield approximately 4.0-fold higher than M2 and 2.8-fold higher compared to M1.
  • Positive detection rate for M3 was 77.5% (31/40) significantly higher than M1's 60.0% (24/40) (P = 0.0082).

Cite This Study

Wen et al. (2026) studied this question.

synapsesocial.com/papers/6a76da7cf12abadc79814c8ahttps://doi.org/10.1371/journal.pone.0355288
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