Trypanosoma

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Related to Trypanosoma evansi: Trypanosoma cruzi, Trypanosoma equiperdum

Trypanosoma

 

a genus of protozoans of the class Flagellata that parasitize the blood and tissues of vertebrates, including man. There are several dozen species, many of which are pathogenic. The body is spindle-shaped and has a single nucleus. The flagellum originates in the cytoplasm of the posterior third of the body from the basal corpuscle. It protrudes freely and forms an undulating membrane with the fold of the pellicle. Alongside it is a kinetoplast, a mitochondrion-like organelle that abounds in DNA. Members of the genus reproduce by longitudinal division. There is no sexual process. Most species penetrate into the body of a vertebrate animal or man through transmitters, usually in-sects. The insects either transmit the parasites mechanically with their piercing mouth parts or serve as temporary hosts to the parasites, which reproduce and undergo a succession of morphological changes, becoming crithidiae and leptomonae.

T. gambiense and T. rhodesiense are pathogenic for man; they cause African sleeping sickness, transmitted by flies of the genus Glossina. T. evansi (the causative agent of surra) and T. brucei (the causative agent of nagana) parasitize cattle in Africa and India. In the USSR, camels suffer from su-auru, caused by T. ninaekohlyakimovi, and horses and donkeys suffer from dourine, caused by T. equiperdum.

IU. I. POLIANSKII

References in periodicals archive ?
Molecular characterization and phylogenetic analysis of Trypanosoma evansi from local and imported camels in Egypt.
[15] DESQUESNES, M.; DARGANTES, A.; LAI, D.H.; LUN, Z.R.; HOLZMULLER, P; JITTAPALAPONG, S., Trypanosoma evansi and Surra: a review and perspectives on transmission, epidemiology and control, impact, and zoonotic aspects.
Trypanosomiasis is a protozoal disease of domestic and wild animals worldwide, caused by Trypanosoma Evansi, the camel is considered major target infected species from trypanosomiasis [1, 2].
In this paper, we present data on the prevalence and intensity of infection by Trypanosoma evansi in a population of capybaras and relate these variables to the physical state of the animals (using a condition index), their sex, and, in the case of females, their reproductive status (pregnant v.
Lipid peroxidation associated with anemia in rats experimentally infected with Trypanosoma evansi. Vet Parasitol 2009; 165:41-46.
Influence of treatment with 3--deoxyadenosine associated deoxycoformycin on hematological parameters and activity of adenosine deaminase in infected mice with Trypanosoma evansi. Exp Parasitol 2013; 135(2):357-362.
Paganico, "Monoclonal antibodies produced against Trypanosoma equiperdum and Trypanosoma evansi recognize both species," Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia, vol.
Trypanosoma evansi is mechanically transmitted by biting flies such as tabanids and stomoxys and also by vampire bats in South America.
Aislamiento de Trypanosoma evansi en carpincho (Hydrochaeris hydrochaeris) en cautiverio de la provincia del Chaco, Argentina Reunion Com Cientif Tecn UNNE, Corrientes (Argentina), http://www.unne.edu.ar./cyt/2003/ cyt.htm.
Another unusual case of Trypanosoma evansi was reported from rural parts of Chandrapur district in Maharashtra in an adult male farmhand with recurrent febrile episodes and he responded to suramin (2).
Estudios realizados en capibaras (Hidrochaeris hidrochaeris) senalan la presencia de Trypanosoma evansi (Munoz y Chavez, 2001) en cautiverio, asi como en primates (Acha y Szyfres, 2003), remarcando el probable riesgo para la salud humana.
The use of the Woo technique is justified, given the occurrence of Trypanosoma evansi in domestic animals at the Bodoquena Plateau, in the Pantanal of the Mato Grosso do Sul and in Bonito Municipality (STEVENS et al., 1989; NUNES et al., 1994; SAVANI et al., 2005), also present in a dog from the rural area of the Sao Paulo State (COELHO et al., 2013).

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