[Persistence of pleomorphism and the presence of multinuclear forms in experimental infection with T.b. brucei]
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Abstract:
Thirty white male mice SWISS ICO NMRI (IOPS) were inoculated intraperitoneally with blood-forms of T.b. brucei of a strain belonging to the Laboratory of Parasitology of the Medicine Faculty of the U.A.M. (Autonom University of Madrid). This strain was preserved during 8 years through inoculation from mice to mice. This strain was received from the Pasteur Institute from Paris. Once infected the mice were submitted to a controle through GIEMSA coloured smears. The various blood-forms registered during the experimental infection were carefully measured and also their proportional presence during the observation. We could appreciate an augment of the Slender forms following the progress of the infection and the apparition of the Stumpy at 48 hours after the inoculation as well as the multinucleate forms. Stumpy forms in division were also observed.
Insights
Researchers tracked Trypanosoma brucei brucei infection in mice, observing an increase in slender forms and the emergence of stumpy and multinucleate forms after 48 hours. This study details the progression of parasitic blood-forms during infection.
Area of Science:
- Parasitology
- Infectious Diseases
- Cell Biology
Context:
- Trypanosoma brucei brucei (T.b. brucei) is a protozoan parasite.
- The study utilized a T.b. brucei strain preserved for 8 years.
- Animal models are crucial for studying parasitic infections.
Purpose:
- To characterize the morphological changes of T.b. brucei blood-forms during experimental infection in mice.
- To observe the progression and relative abundance of different parasitic forms.
Summary:
- Thirty male mice were intraperitoneally inoculated with T.b. brucei.
- Blood smears were analyzed using Giemsa staining to monitor infection.
- An increase in slender forms was noted, with stumpy and multinucleate forms appearing at 48 hours post-inoculation. Dividing stumpy forms were also observed.
Impact:
- Provides insights into the dynamic morphological transformations of T.b. brucei in vivo.
- Contributes to understanding the parasite's life cycle and host-parasite interactions.
- Informs potential therapeutic strategies targeting specific parasitic stages.