BioScience Dictionary

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Found Leishmaniasis 5 times.

Displaying results 1 to 10.

1. Leishman-Donovan bodies
Small spheres found in the spleen and liver of patients with visceral leishmaniasis . The spheres are an alternate, non flagellated form of the parasitic protozoan Leishmania donovani which occurs once the parasite has invaded the cell s of the reticuloendothelial system in the patient's organs. The spheres are named after Sir William Leishman and Charles Donovan.

2. Leishmania
A genus of parasitic flagellated protozoan s which causes diseases in animals including humans, most notably leishmaniasis . A type of trypanosome .

3. Leishmaniasis (kala azar, black fever, dumdum fever, Chiclero ulcer, forest yaws, uta, espundia, aleppo boil)
A group of diseases caused by parasitic protozoan s of the genus Leishmania. It is transmitted by sandflies and are, in general, infections of the skin, mucous membranes, and certain internal organs by the parasites. Three major types of leishmaniasis occur in humans - cutaneous, mucocutaneous, and visceral: * In cutaneous leishmaniasis, also known as aleppo boil, aleppo button, Bagdad boil, Baure ulcer, Delhi boil, oriental sore, and tropical sore, the parasite causes lesions on the face, arms, and legs which begin as inflamed bumps and can turn into skin ulcers that take up to two years to heal. * In mucocutaneous leishmaniasis, also known as American leishmaniasis, Chiclero ulcer, espundia, forest yaws, and uta, the parasite invades the mucous membranes and causes ulcers in the nose, mouth, and parts of the sinuses. This can result in lesions and deformity of the face. * In visceral leishmaniasis, also known as kala azar (a Hindi term meaning "black fever") or dumdum fever, the parasite invades the spleen , liver, bone marrow, lymph nodes, and skin. Symptoms include fever, fatigue, enlargement of the lymph nodes, the spleen, and the liver, dizziness, weight loss, and secondary infections such as pneumonia, and it can be fatal if left untreated.

4. Tropical medicine
This broad medical field is concerned with the prevention, diagnosis and treatment of diseases that afflict people who live in or visit tropical areas of the world. Tropical diseases include malaria , sleeping sickness , visceral leishmaniasis , amoebiasis, giardia intestinalis, typhoid, leprosy , tuberculosis , HIV/AIDS , yellow fever , schistosomiasis, filariasis, trachoma, onchocerciasis and other parasitic diseases. The field also concerns itself with international health policies, health economics, and epidemiology.

5. Trypanosome
A type of parasitic protozoan which can cause a number of serious diseases in people and domestic animals, including African sleeping sickness and leishmaniasis . The trypanosome is able to remain within a host 's body for a very long time because it regularly changes the protein s (i.e. antigen s) on its outer surface, so that the host's immune system must constantly develop new antibodies in order to continue to recognize and destroy it. The trypanosome uses a large number of different gene s which can be used in many combinations to come up with the different surface proteins. As a result, the host is never able to completely eliminate the trypanosome.