The Effect of Egg Embryonation on Field-Use of a Hookworm Benzimidazole-Sensitivity Egg Hatch Assay in Yunnan Province, People's Republic of China
2011

Hookworm Drug Sensitivity Study in China

Sample size: 37 publication Evidence: moderate

Author Information

Author(s): Kotze Andrew C., Steinmann Peter, Zhou Hui, Du Zun-Wei, Zhou Xiao-Nong

Primary Institution: CSIRO Livestock Industries, St. Lucia, Brisbane, Australia

Hypothesis

The study aimed to evaluate an in vitro egg hatch assay for measuring the sensitivity of human hookworms to benzimidazole drugs.

Conclusion

The study highlighted the impact of egg embryonation on the use of benzimidazole drug sensitivity assays for human hookworms in field settings.

Supporting Evidence

  • The mean IC50 was 0.10 ug/ml thiabendazole.
  • Embryonation of some eggs did not affect IC50 values but increased IC95 and IC99 values for some samples.
  • The study suggests that egg embryonation should be measured and accounted for in drug sensitivity assays.

Takeaway

Researchers tested how well a drug works against hookworms by looking at their eggs, and found that some eggs had started to develop, which can change the results.

Methodology

Egg hatch assays were performed with hookworm eggs extracted from stool samples of local school-aged children.

Limitations

The study faced challenges with the freshness of stool samples and the variability in drug sensitivity results.

Participant Demographics

Local school-aged children in southern Yunnan province, People's Republic of China.

Statistical Information

Confidence Interval

95% CI: 0.09–0.12

Digital Object Identifier (DOI)

10.1371/journal.pntd.0001203

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