Results 171 to 180 of about 5,745 (208)

Theileria parya: Kinetics of replication

Experimental Parasitology, 1969
Abstract The kinetics of replication of Theileria parva (Muguga) in the bovine host were studied using infections produced by 10 1 , 10 2 , and 10 3 ticks. It was found that the growth of the organism was exponential from at least days 11–21 and probably from the start of growth in the bovine host.
W F, Jarrett, G W, Crighton, H M, Pirie
openaire   +2 more sources

A Theileria parva type 1 protein phosphatase activity

Molecular and Biochemical Parasitology, 2000
The protozoan parasite Theileria (spp. parva and annulata) infects bovine leukocytes and provokes a leukaemia-like disease in vivo. In this study, we have detected a type 1 serine/threonine phosphatase activity with phosphorylase a as a substrate, in protein extracts of parasites purified from infected B lymphocytes. In contrast to this type 1 activity,
Cayla, Xavier, Garcia, A., Baumgartner, M., Ozon, René, Langley, G.   +4 more
openaire   +3 more sources

Merogony in in vitro cultures of Theileria parva

Veterinary Parasitology, 2003
In vitro studies were focussed on the duration and cessation of merogony in Theileria parva infected blood lymphocyte cell cultures. The cultures were infected using purified tick stabilates as an alternative to in vitro infections, using sporozoites obtained by labour intensive dissections of salivary glands from infected ticks. After establishment of
Madder, M., Speybroeck, N., Berkvens, D., Baudoux, V., Marcotty, T., Pita Bah, I., Geysen, D., Brandt, J.   +7 more
openaire   +3 more sources

Studies on Macroschizonts of Theileria parva

Research in Veterinary Science, 1961
SUMMARY A series of measurements was made of the schizonts of Theileria parva in the hope that these criteria might be used in the differential diagnosis of the theilerial species. Macroschizonts were found to have an average size of 4.8 μ, which was smaller than expected. They contained from 1 to 85 nuclei, with an average of 8.
S.F. Barnett, D.W. Brocklesby, Brenda O. Vidler   +2 more
openaire   +1 more source

Theileria parva: Significance of leukocytes for infecting cattle

Experimental Parasitology, 1978
Abstract Using an artificial feeding technique, infective particles of Theileria parva were harvested in bovine blood in capillary tubes from prefed female Rhipicephalus appendiculatus over a 2-hr period. Inoculations of this blood feed pool invariably resulted in the establishment of patent East Coast fever in autogeneic or syngeneic cattle, i.e.
C G, Brown, M P, Cunningham, L P, Joyner, R E, Purnell, D, Branagan, G L, Corry, K P, Bailey   +6 more
openaire   +2 more sources

Infection of bovine monocyte/macrophage populations with Theileria annulata and Theileria parva

Veterinary Immunology and Immunopathology, 1989
Infection and transformation of cells of the bovine immune system by Theileria annulata and T. parva were compared. Preliminary experiments with mammary gland macrophages indicated that they were permissive to infection by T. annulata but only to a limited extent by T. parva.
E J, Glass, E A, Innes, R L, Spooner, C G, Brown   +3 more
openaire   +2 more sources

Chemoprophylaxis of Theileria annulata and Theileria parva infections of calves with buparvaquone

Veterinary Parasitology, 1998
A clinical trial testing the prophylactic effect of a 5 mg kg-1 dose of buparvaquone on either Theileria annulata or Theileria parva experimental infections of calves demonstrated its efficacy for periods of at least seven days. The drug given 1 h or seven days before 50% lethal T.
G M, Wilkie, C G, Brown, B E, Kirvar, M, Thomas, S M, Williamson, L J, Bell-Sakyi, O, Sparagano   +6 more
openaire   +2 more sources

Aureomycin in Thieileria parva Infection

Nature, 1953
RECOGNITION of the selective action of quinine, atebrin and chloroquine on the haemotropic trophozoites of certain Plasmodium species, and that of plasmoquine on the exoerythrocytic trophozoites as well as on the gametocytes, forms the bases of modern chemotherapy of malaria in laboratory animals and in man.
openaire   +2 more sources

The antitheilerial effects of Theileria parva parva reaction and recovery sera In vitro

International Journal for Parasitology, 1985
Abstract Peripheral blood leucocytes (PBL) of cattle were infected in vitro with the sporozoites of Theileria parva spp. The transformed cell lines were adapted to grow in sera from the PBL donors. The cattle were then infected with T. p. parva stabilate and either treated with parvaquone or the disease allowed to run its course. Sera harvested
T T, Dolan, D A, Stagg, L M, Njuguna
openaire   +2 more sources

Immunization of Cattle Against Theileria Parva

1977
Throughout its distribution in East and Central Africa, East Coast fever (ECF) is considered to be the most important of the tick-borne diseases which inhibit the development of the livestock industry. At present, the only method of controlling the disease is by close-interval application of acaricides to cattle, in dips or sprays, to kill the tick ...
openaire   +2 more sources