Trypanosoma


Also found in: Dictionary, Medical, Wikipedia.

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 ?
Prevalencia de anticorpos contra Trypanosoma cruzi em mulheres gravidas de zonas endemicas do Departamento de Boyaca, Colombia
La enfermedad de Chagas, causada por el protozoo flagelado Trypanosoma cruzi, es una afeccion inflamatoria cronica que causa la muerte de cerca de 50 000 personas por ano en la region endemica que se extiende desde el sur de Estados Unidos hasta la Patagonia Argentina (Coura y Vinas, 2010; WHO, 2015).
Trypanosoma brucei gambiense type 1 populations from human patients are clonal and display geographical genetic differentiation.
La tripanosomosis bovina es una enfermedad causada por Trypanosoma vivax, el cual es un protozoario del Orden Kinetoplastida, Familia Trypanosomatidae y Genero Trypanosoma.
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].
Chagas disease is caused by the protozoan parasite Trypanosoma cruzi, transmitted to humans by domestic and sylvatic insects of the subfamily Triatominae (Hemiptera, Reduviidae), the kissing bug, and endemic in the Americas from US to Argentina.
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.
The Trypanosoma infections have been reported in cattle, camels and equines from the different areas of Pakistan (Waheed et al.
The Trypanosoma evansi infection occurs in the municipality of Chaves and Santa Cruz do Arari, with the outbreaks occurred in horses in Chaves.
Tests then showed the upgrade - codenamed GNF6702 - could treat Trypanosoma brucei, Trypansosoma cruzi and Leishmania infections in mice.
Imagine a swarm of microscopic bots that mimics Trypanosoma brucei's behavior.
La tripanosomiasis americana, tambien llamada enfermedad de Chagas en honor a su descubridor, es una parasitosis causada por Trypanosoma cruzi, un protozoario flagelado perteneciente al orden Kinetoplastida, familia Trypanosomatidae, extensamente distribuido en el continente americano (7, 18).