Clinico-pathological and pathomorphological observations in trypanosoma vivax infection cattle

Ingh, T.S.G.A.M. van den; Zwart, D.; Miert, A. S. J. P. A. M. van; Schotman, A. J. H.

doi:10.1016/0304-4017(76)90082-0

Cited by 25 publications

(29 citation statements)

References 14 publications

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“…During the acute phase of trypanosomiasis a marked increase of blood bradykinin-like activity can be observed (Bcreham, 1968;Gcodwin and Richards, 1960;Veenendaal et al 1976; Van den Ingh et al 1976a).…”

Section: Bradykininmentioning

confidence: 96%

“…Semi-quantitative assessment of free serum amino acids showed a decrease and disappearance of glutamine parallelled with an increase of alanine in a fatal case of m.i.T.vivax infection in a heifer; no changes were found in any of the surviving animals ( Van den Ingh et al 1976a). …”

Section: Free Serum Amino Acidsmentioning

confidence: 96%

“…C3a and CSa, are also known to induce vascular leakage (Eisen and Vogt, 1970;Ryan, 1974). Fibrinopeptides, as a consequence of disseminated intravascular coagulation (~IC), may occur during trypanosomiasis (Van den Ingh et al 1976a;Boreham and Pacer, 1974) and the activation of the complement system by variant antigen of trypanosomes has been described by Musoke and Ba~bet (1977). Furthermore, a direct effect from the platelet-or fibrin-th~embi on the vessel wall formed during a trypanosomal infection is likely.…”

Section: Serotoninmentioning

confidence: 98%

“…Immune complexes acting as activators can occur very early in the infection (Fruit et al 1977), but in this respect it is remarkable that in cattle the highest value of bradykinin (60 ng/ml blood) was found 4 days after the infection with m.i.T.vivax; then it gradually declined, followed by an increase after day 20 ( Van den Ingh et al 1976a). …”

Section: Bradykininmentioning

confidence: 98%

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A review of studies on three mouse-infectiveT. vivax strains

Zwart¹

1979

Vet Res Commun

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Zwart, D., ]979. A review of studies on three mouse-infective T. vivax strains.Vet. Sci. ,un.,.The literature is reviewed of three strains of T.vivax which retained their characteristics of T.vivax after serial passage through mice. These mouse infective (m.i.) strains were used to study the surface coat of T.vivax, antigenic variation and behaviour in rodents and ruminants.The m.i.T.vivax Y58 was mildly virulent for ruminants, causing a hemolytic anaemia, thrombi and in the more chronic stage a myocarditis with extravascular parasites. The relation between bradykinin levels, parasitaemia, fever, pulse rate and forestomach motility was not clear. The fall in serotonin levels was caused by thrombocyte aggregation, followed by release, degradation and/or reuptake of the serotonin, No systematic role could be attributed to the released serotonin. Some of the strains have been tested for their drug susceptibility, whereby dose rates higher than generally recommended had to be used in order to clear the animals completely from the parasites.

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Section: Bradykininmentioning

confidence: 96%

Section: Free Serum Amino Acidsmentioning

confidence: 96%

Section: Serotoninmentioning

confidence: 98%

Section: Bradykininmentioning

confidence: 98%

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A review of studies on three mouse-infectiveT. vivax strains

Zwart¹

1979

Vet Res Commun

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“…It can also be transmitted both mechanically and excrementally. As a result of trypanosomes threat, large proportion of livestock population is found in the high lands that are assumed to be tsetse-free [4]. Although livestock trypanosomes are a well-known constraint to livestock production in Ethiopia, title attention has been paid to the trypanosomes situation.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Bovine Trypanosomosis in and around Nekemte Areas, East Wollega Zone, Ethiopia

Gemeda¹

2015

OALib

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A cross-sectional study was conducted from November 2010 to April 2011 to determine the prevalence of trypanosomosis and to identify the prevailing species of trypanosomes in cattle present in and around Nekemte. Blood sample were collected from ear vein of 400 cattle and then examined using thin and thick smear method followed by Buffy coat examination. Anemic status was determined by Packed Cell Volume (PCV). Out of 400 samples were examined, 36 (9%) were positive, out of which 26 (0.065%) had Trypanosoma vivax and 10 (0.025%) had T. congolense. The mean PCV of the infected animal is 19.36 and that of non infected animal is 27.54, which indicates a significant difference between these animals. Trypanosomosis is a fatal and economically devastating disease and the major constraint to production by causing loss of the livestock. Therefore, the better strategies to prevent this disease includes: avoidance of animals from tsetse-infested areas, tsetse fly control by using different scientific methods (such as, sterile insect technique, use of accaricides), prophylactic use of trypanocidal drugs, keeping of trypanoresistant breeds and good husbandry practice for the prevention of the disease.

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Haemorrhagic syndrome in cattle associated withtrypanosoma vivax infection

Wellde¹,

Chumo²,

Adoyo³

et al. 1983

Trop Anim Health Prod

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Trypanosoma vivax isolated from dairy cattle undergoing a haemorrhagic disease was inoculated into Ayrshire steers. Five of six infected animals experienced brief periods of diarrhoea and sublingual and gastro-intestinal haemorrhage. Gastro-intestinal bleeding coincided with markedly reduced numbers of thrombocytes and a high level of parasitaemia in the peripheral blood. Prothrombin times were extended and fibrinogen levels were elevated in infected animals. Plasma paracoagulation tests were positive for the presence of fibrin monomers and/or clottable early fibrin degradation products during the course of infection.

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Clinico-pathological and pathomorphological observations in trypanosoma vivax infection cattle

Cited by 25 publications

References 14 publications

A review of studies on three mouse-infectiveT. vivax strains

A review of studies on three mouse-infectiveT. vivax strains

Prevalence of Bovine Trypanosomosis in and around Nekemte Areas, East Wollega Zone, Ethiopia

Haemorrhagic syndrome in cattle associated withtrypanosoma vivax infection

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