Related Experiment Videos
Circadian periodicity in microfilarial counts.
C K Gupta1, M Srivastava, P K Murthy
1Central Drug Research Institute, Lucknow, India.
The Journal of Tropical Medicine and Hygiene
|June 1, 1990
Summary
This study reveals circadian periodicity in microfilarial counts of Brugia malayi in rhesus monkeys. A second-order harmonic model effectively describes this daily cycle, identifying peak hours.
Area of Science:
- Parasitology
- Chronobiology
- Mathematical modeling
Background:
- Microfilarial counts exhibit daily fluctuations.
- Understanding these patterns is crucial for disease management.
Purpose of the Study:
- To model the 24-hour circadian periodicity of microfilarial counts.
- To analyze Brugia malayi infection dynamics in a primate model.
Main Methods:
- Employing a second-order harmonic model.
- Infecting Rhesus monkeys (Macaca mulatta) with Brugia malayi.
- Quantifying microfilarial counts over a 24-hour cycle.
Main Results:
- Confirmed circadian periodicity in microfilarial counts.
- Determined model parameters, periodicity indices, and peak hours.
- Demonstrated the utility of the harmonic model for describing parasitic cycles.
Conclusions:
- Circadian rhythms significantly influence microfilarial load.
- The proposed model accurately captures the daily periodicity.
- Findings contribute to understanding filariasis chronobiology.