Studies on the glomerular filtration rate and extracellular fluid volume in rhesus monkeys infected with Plasmodium knowlesi
Areekul, S.; Chantachum, Y.
Southeast Asian Journal of Tropical Medicine and Public Health 15(3): 364-370
1984
ISSN/ISBN: 0125-1562 PMID: 6441266 Document Number: 548
The glomerular filtration rate (GFR) and the extracellular fluid volume (ECV) were determined in 5 rhesus monkeys infected with P. knowlesi in comparison with 6 control monkeys by using 51Cr-EDTA. As the disappearance curve of the radioactivity showed a close fit to a double exponential equation, the data was therefore analysed by an open 2-compartment system. Results in the present study showed that the GFR was significantly reduced in the infected group. Both V1 and V2 were also slightly but not significantly decreased which resulted in the lower ECV in monkeys infected with P. knowlesi. As the GFR was reduced much more than ECV, therefore the mean transit time of 51Cr-EDTA in the infected group was longer than that of the normal group. All other intercompartment clearance and fractional transfer rate constants were also found to be lower in the infected group. These findings indicated that there was a delay in the distribution of 51Cr-EDTA between these 2 compartments in monkeys infected with P. knowlesi malaria.
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