trypanosome


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Related to trypanosome: Trypanosoma brucei

trypanosome

(trĭp`ənəsōm'), microscopic, one-celled protozoan of the genus Trypanosoma, typically living as an active parasite in the bloodstream of a vertebrate; hundreds of species are known. A trypanosome is long and pointed and possesses a flagellum. The flagellum arises at the front, or anterior, end of the parasite and curves back to form the edge of a long, undulating membrane used in locomotion. Trypanosomes have a complex life cycle; most species undergo part of their development in the digestive tract of insects, which spread the parasite by biting.

Many trypanosomes do not appear to harm their hosts, but a number of species cause serious diseases in humans or domestic animals (see trypanosomiasistrypanosomiasis
, infectious disease caused by a protozoan organism, the trypanosome, which exists as a parasite in the blood of a number of vertebrate hosts. The three variations of the disease that predominate in humans are transmitted by an insect vector.
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). T. brucei gambiense and T. brucei rhodesiense cause African sleeping sickness and are transmitted by tsetse fliestsetse fly
, name for any of several bloodsucking African flies of the genus Glossina, and in the same family as the housefly. The larva of the tsetse fly develops inside the body of the mother until it is ready to pupate in the soil.
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. T. cruzi is the cause of Chagas' diseaseChagas' disease,
disease of South and Central America caused by the parasite Trypanosoma cruzi. It usually affects children and young adults and is transmitted by the feces of infected insects, typically the assassin bug.
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, prevalent in South and Central America, which affects the nervous system and heart; it is transmitted by the bite of assassin bugsassassin bug,
common name for members of the family Reduviidae, one of the largest and most varied groups belonging to the order Hemiptera (suborder Heteroptera). Assassin bugs are generally brownish to black, medium-sized to large insects, with heads that are elongate and
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. Other species, restricted in distribution to Africa and Asia, cause diseases of horses and cattle. Control measures include elimination or reduction of the insect carrier populations and measures to reduce the likelihood of bites.

Trypanosomes are classified in the phylum Mastigophora of the kingdom ProtistaProtista
or Protoctista
, in the five-kingdom system of classification, a kingdom comprising a variety of unicellular and some simple multinuclear and multicellular eukaryotic organisms.
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.

trypanosome

[trə′pan·ə‚sōm]
(invertebrate zoology)
A flagellated protozoan of the genus Trypanosoma.
References in periodicals archive ?
Apolipoprotein L-I is the trypanosome lytic factor of human serum.
5% (14 out of 43) Jersey cows and 23% (11 out of 47) Friesian cows positive for trypanosomes in a herd at a livestock experimental station, Bhunikey, Kasur, Pakistan.
Hence it may be concluded that copper based transition metal complex deserves further developments and may be tested for In vivo studies at other trypanosome stage as well.
However, like other protozoan parasites, trypanosomes may encounter osmotic stress during kidney passages, in the course of transmission, and during progression through different organs of the insect vector.
In cattle the main pathogenic trypanosomes are Trypanosoma congolense and T.
She began her studies on a new parasite, the trypanosome, which causes human sleeping sick-sickness and other important diseases.
It is conceivable that the administration of flavonoids, possessing antioxidant activity, may reduce the cellular injury caused by ROS generation in trypanosome infection.
If the activity is unique to a trypanosome, then you have a good drug target.
Methanolic extracts of 70 Malaysia plants were screened for their in vitro antitrypanosomal activity using Trypanosome brucei rhodesience, strain STIB 900 and mouse skeletal cell (L-6) in cytotoxicity activity assay.
Khartoum, 5 Sept (SUNA) - Le Ministere de l'Elevage , de la Peche et des paturages a annonce que le Soudan va accueillir au cours de la periode du 8 au 12 Septembre une conference scientifique a Khartoum du Conseil des recherches et la lutte contre la maladie de trypanosome sous l'auspices du premier Vice-president de la Republique M.
Because this particular fly is carrying a parasite, a protozoan known as a trypanosome, which heads down the fly's proboscis and into its new host.