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Surface area calculation for Onchocerca volvulus microfilariae.

M A Kron1, C D Mackenzie

  • 1Department of Pathology, Michigan State University, East Lansing.

Tropical Medicine and Parasitology : Official Organ of Deutsche Tropenmedizinische Gesellschaft and of Deutsche Gesellschaft Fur Technische Zusammenarbeit (GTZ)
|June 1, 1991
PubMed
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Filarial infections cause tissue damage through inflammation. High parasite loads, like Onchocerca volvulus microfilariae, present a large surface area, potentially triggering severe host immune responses.

Area of Science:

  • Parasitology
  • Immunology
  • Mathematical Biology

Background:

  • Filarial infections cause tissue damage via inflammatory mediators.
  • Host immune responses to parasite surfaces drive pathogenesis.
  • High parasite burdens can lead to severe local or systemic inflammation.

Purpose of the Study:

  • To calculate the surface area of individual Onchocerca volvulus microfilariae.
  • To estimate the cumulative surface area of large microfilariae populations.
  • To compare microfilarial surface area to host surfaces for understanding inflammation potential.

Main Methods:

  • Utilized mathematical formulas for geometric shapes.
  • Employed serial measurements from electron micrographs.
  • Calculated and compared surface area values.

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Main Results:

  • Determined the approximate surface area of a single microfilaria.
  • Provided numerical values for the cumulative surface area of numerous microfilariae.
  • Compared these areas to host-compatible surface areas.

Conclusions:

  • The cumulative surface area of microfilariae in heavy infections is substantial.
  • This large surface area likely contributes to the development of adverse inflammatory responses.
  • Understanding parasite surface area is crucial for filarial disease pathogenesis research.