The occult visceral phase of mammalian trypanosomes with special reference to the life cycle of Trypanosoma (Trypanozoon) Brucei

Ormerod, W.E.; Venkatesan, S.

doi:10.1016/0035-9203(71)90087-3

Cited by 41 publications

(11 citation statements)

References 26 publications

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“…En cuanto a las formas intracelulares, se tiene que las mismas también han sido observadas en infecciones de animales de experimentación con el T. brucei [25][26][27] y el T. evansi [10,11] y constituyen un elemento adicional que complica aún más la patogenia de la enfermedad. A la presencia de estas formas se suman los efectos del daño mecánico y de la acción de las moléculas biológicamente activas secretadas por ellas, así como a los efectos de los mecanismos expoliativos e inmunológicos desencadenados por las formas hematozoicas.…”

Section: Discussionunclassified

Trypanosoma evansi in capybara from Venezuela

Arias

García

Rivera

et al. 1997

Journal of Wildlife Diseases

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Section: Discussionunclassified

Trypanosoma evansi in capybara from Venezuela

Arias

García

Rivera

et al. 1997

Journal of Wildlife Diseases

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“…In a posterior study, Salvin-Moore and Breinl [30] regarded the spherical forms as "latent bodies", capable of renewing the infection either by relapse or by passage into another host in the absence of trypomastigote in the blood. Later, Ormerod and Venkatesan [31] observed amastigotes forming large masses in the choroid plexus of rats.…”

Section: Citationmentioning

confidence: 97%

Haementeria lutzi Pinto, 1920 (Hirudinea: Glossiphoniidae) as a putative Vector of Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in the Pantanal Matogrossense (MS, Brazil)

Carvalho¹

2013

Entomol Ornithol Herpetol

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“…In the infected animals the parasites were apparently restricted to the blood stream. T. brucei infection is known to produce tissue forms, especially as far as rats are concerned (Ormerod and Venkatesan, 1971). These authors showed that amastigotic forms of T. rhodesiense occurred throughout the period of infection in the choroid plexus of rats.…”

Section: Serum Glutamic-pyruvic Transaminase (Sgpt) Glutamic-oxaioacmentioning

confidence: 97%

An investigation into the incidence and pathology of natural trypanosomiasis of bushbuck (Tragelaphus scriptus) and kudu (T. Strepsiceros)

Knottenbelt¹

1974

Trop Anim Health Prod

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SUMMARYHaematological and biochemical data were obtained from 44 bushbuck (Tragelaphus scriptus) and 10 kudu (T. strepsiceros) shot in the Matsikite area of Rhodesia which carries populations of Glossina morsitans and G. pallidipes. Baker (1968) draws attention to the paucity of information on the pathogenicity of the salivarian trypanosomes to game animals and on the course and pathology of such infections. There is very little evidence that salivarian trypanosomes are pathogenic to wild animals, except in the case of Trypanosoma brucei group organisms which in some game species are capable of inducing pathological effects (Ashcroft, Burtt and Fairbairn, 1959;McCulloch, 1967). Fiennes (1970) mentions that the "offspring of game animals of species which thrive in tsetse country succumb to trypanosomiasis if exposed to infection for the first time as adults" but gives no indication of the character of such infections. It is widely accepted that game animals in permanent contact with tsetse flies are remarkably resistant to the trypanosomal diseases, though there appears to be no information on the exact effect of these infections.In the course of tsetse control operations in Rhodesia bushbuck (Tragelaphus scriptus) and kudu (T. strepsiceros), amongst other game species favoured by tsetse flies, are being eradicated from a narrow corridor (Cockbill, 1970) (Fig. 1). In order to obtain information on the pathology and biochemistry of natural trypanosomal infections, haematological, serological and pathological material was collected from bushbuck and kudu in the Matsikite Tsetse Control Area, Rhodesia (Fig. 1), between June and October 1972. The area harbours a low density of Glossina morsitans and a moderate density of G. pallidipes. The cattle population belonging to the local inhabitants in an adjacent area where the fly population is considerably lower has for many years shown a low but persistent level of trypanosomiasis. MATERIALS AND METHODSFresh blood was collected in suitable containers from the jugular vein or heart of animals at the tim. ~ of death. Two ml were collected in a blood-sequestrene vial and 5 ml in a McCartney bottle with glycerol and heparin to give a 10 per cent glycerol concentration and 25 i.u. heparin/ml of blood. Forty ml were allowed to clot for serum separation. A post-mortem examination was carried out as soon as possible providing that the carcass was suitably fresh.

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The occult visceral phase of mammalian trypanosomes with special reference to the life cycle of Trypanosoma (Trypanozoon) Brucei

Cited by 41 publications

References 26 publications

Trypanosoma evansi in capybara from Venezuela

Trypanosoma evansi in capybara from Venezuela

Haementeria lutzi Pinto, 1920 (Hirudinea: Glossiphoniidae) as a putative Vector of Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in the Pantanal Matogrossense (MS, Brazil)

An investigation into the incidence and pathology of natural trypanosomiasis of bushbuck (Tragelaphus scriptus) and kudu (T. Strepsiceros)

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