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Saturday, May 9, 2020 | History

3 edition of An experimental investigation of Trypanosoma lewisi. found in the catalog.

An experimental investigation of Trypanosoma lewisi.

by Edward Francis

  • 159 Want to read
  • 4 Currently reading

Published by Govt. print. off. in Washington .
Written in English

    Subjects:
  • Trypanosoma.

  • Edition Notes

    SeriesBulletin (Hygienic Laboratory (U.S.)) ;, no. 11.
    Classifications
    LC ClassificationsRA421 .U4
    The Physical Object
    Pagination34 p.
    Number of Pages34
    ID Numbers
    Open LibraryOL6525718M
    LC Control Number10032324
    OCLC/WorldCa29161873

    The role of complement in host resistance to infection with Trypanosoma lewisi was studied in normal, C4-deficient, and C3-depleted rats. Complement levels were measured in normal rats throughout the course of infection. A drastic reduction of total complement Cited by: Tecnociencia, Vol. 15, N°1 19 ROLE OF NITRIC OXIDE IN THE IMMUNOSUPPRESSIVE EFFECT OF TRYPANOSOMA LEWISI ON MULTIPLICATION OF TOXOPLASMA GONDII IN WHITE RATS Nivia Judith Ríos-Carrera1, Olga Marta Guerrero1, Misael Chinchilla Carmona2 & Clas Une3 1Universidad de Costa Rica, San José, Costa Rica; Facultad de Microbiología, Centro de Investigaciones en Author: Nivia Judith Ríos Carrera, Olga Marta Guerrero Bermúdez, Misael Chinchilla Carmona, Clas Allan Une.

    Trypanosoma lewisi II. THE RELATION OF ECTOPARASITES TO THE PREVALENCE OF T. LEWISI IN RATS UNDER NATURAL CONDITIONS. Owing to the fairly constant association in nature of T. lewisi and fleas, it has been assumed that fleas are concerned to a considerable extent in the transmission of the trypanosome from rat to rat. TheCited by: 6.   Abstract. Background. Trypanosoma is a genus of unicellular parasitic flagellate osoma brucei species and Trypanosoma cruzi are the major agents of human trypanosomiasis; other Trypanosoma species can cause human disease, but are rare. In March , a year-old woman presented to a healthcare facility in southern Vietnam with fever, headache, and Cited by:

    John Richard Seed, Mauro A. Baquero and Joseph F. Duda, Inhibition of hexose and glycerol utilization by 2-deoxy-d-glucose in Trypanosoma gambiense and Trypanosoma rhodesiense, Experimental Parasitology, 16, 3, (), ().Cited by: Trypanosoma is a genus of kinetoplastids (class Trypanosomatidae), a monophyletic group of unicellular parasitic flagellate osoma is part of the phylum Sarcomastigophora. The name is derived from the Greek trypano-(borer) and soma (body) because of their corkscrew-like motion. Most trypanosomes are heteroxenous (requiring more than one obligatory host to complete life cycle) and Class: Kinetoplastea.


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An experimental investigation of Trypanosoma lewisi by Edward Francis Download PDF EPUB FB2

Lance A. Durden, Nancy C. Hinkle, in Medical and Veterinary Entomology (Third Edition), Murine Trypanosomiasis. Trypanosoma lewisi is the causative agent of murine trypanosomiasis in domestic rats throughout much of the world.

It is principally transmitted by the Northern rat flea (N. fasciatus) (Fig. ) and the Oriental rat flea (X. cheopis) (Fig. The Development of "Trypanosoma Lewisi" Outisde the Vertebrate Host. $ Details about Experimental Infections with Trypanosoma Lewisi in the Guinea Pig.

Book must be returned in the same condition as sent. All autographs are guaranteed authentic, and if found otherwise may be returned for full refund of the original purchase price Seller Rating: % positive.

The life-history of Trypanosoma lewisi and Trypanosoma brucei Paperback – January 1, by Ward J. MacNeal (Author) See all 3 formats and editions Hide Author: Ward J. MacNeal. exalted virulence in a strain of Trypanosoma lewisi, an account of which was published about a year ago.

1 While others have observed similar examples of virulence in Trypanosoma lewisi, notably Jfirgens, 2 no satisfactory explanation has been offered for such occurrences. By experimental. Abstract. Background: Trypanosoma lewisi is an extracellular hemoflagellate protozon of rats.T.

lewisi was not considered a pathogen for human, However, cases of human trypanosomiasis caused by T. lewisi have been reported. Objective: There is little data on the prevalence of T. lewisi in Rattus norvegicus rats in Egypt, so this study aimed to determine the prevalence of T.

lewisi in Rattus. EXPERIMENTAL PABASITOL () Trypanosoma lewisi: Characteristics of an Antigen which Induces Ablastic Antibody MONTE P. BAWDEN 1 AND LESLIE A. STAUBER 2 Department of Zoology, Rutgers University, New Brunswick, New Jersey Submitted for publication Aug BAWDEN, MONTE P., AND STAUBEH, LESLIE A.

An experimental investigation of Trypanosoma lewisi. book Cited by: 7. artificial acidosis in trypanosoma lewisi infections, and its bearing on the pathogenic action of trypanosoma equiperdum richard w.

linton, richard w. linton concerning changes in the biological properties of trypanosoma lewisi produced by experimental means, with especial reference to Cited by: 4.

Background. Trypanosoma (Herpetosoma) lewisi was first reported by Kent in and subsequently by Laveran and Mesnil in It is a trypanosome of the sub-genus Herpetosoma (Stercoraria section). A parasite of rats (Rattus rattus and Rattus norvegicus), that is transmitted by fleas: Nosopsyllus fasciatus, in temperate countries, and Xenopsylla cheopis in inter-tropical areas [].Cited by: 1.

In infections with Trypanosoma lewisi in the rat there are three manifestations of resistance against the parasite: (1) the retardation and final inhibition of reproduction of the trypanosomes by about the 10th day; (2) a sudden drop in the number of parasites in the blood between the 9th and 15th days; and (3) the total disappearance of the parasites, which terminates the infection and Cited by: Trypanosoma lewisi is a parasite of Rattus species and other rodents such as mice and kangaroo rats in America.

Among these host species were two endemic species of rats: Rattus macleari and Rattus are now believed to be extinct.

It is not very clear whether or not the same parasite infected both : Kinetoplastea. EXPERIMENTAL PABASITOL () In Vitro Phagocytosis of Trypanosoma lewisi by Rat Exudative Cells1 D. Lange2 and M. Lyseiiko Department of Medical Microbiology, University of Wisconsin Medical School, Madison, Wisconsin (Submitted for publication, 25 February ) Data presented in this report indicated the following: by:   Trypanosoma melophagium Flu,is a parasite of European domestic sheep (Ovis aries L.), in the blood of which it occurs in very scanty numbers and can be detected by the cultural method.

In England it has been found in 80 per cent, of sheep examined. The infection is of fairly short duration and does not produce an immunity in sheep, since the latter can easily be by: Trypanosoma lewisi and T. cruzi: Effect of infection on gestation in the rat.

Experimental Parasitol Termination of pregnancy occurred in the rat after infection with Trypanosoma lewisi early in gestation.

Rats were inoculated on Day 2 of pregnancy and the uteri were excised and examined on Days 10 and 14 of by: 6. Abstract. Trypanosoma (Herpetosoma) lewisi is a trypanosome of the sub-genus Herpetosoma (Stercoraria section), parasite of rats (Rattus rattus and Rattus norvegicus) transmitted by fleas.T.

lewisi has a stringent species specificity and cannot grow in other rodents such as mice. Rats are infected principally by oral route, through contamination by flea faeces or ingestion of by: Molyneux DH. Intracellular stages of Trypanosoma lewisi in fleas and attempts to find such stages in other trypanosome species.

Parasitology. ; – Natheewattana N, Hongsbhanich L, Khamboonruang C, Thitasut P. Preliminary study of a Trypanosoma lewisi Cited by: Detail of experimental infections of guineapigs with Trypanosoma lewisi. The trypanosomes multiplied at first and remained in evidence microscopically to the 13th day and by transmission to rats up to the 20th day, and then succumbed to the natural resistance of the guineapig.

A mild infection was obtained up to 9 days in two passages through : Otto Nieschulz, F. Wawo-Roentoe. Background: Trypanosoma lewisi is an extracellular hemoflagellate protozon of rats.T lewisi was not considered a pathogen for human, However, cases of human trypanosomiasis caused by T.

lewisi have been reported. Objective: There is little data on the prevalence of T. lewisi in Rattus norvegicus rats in Egypt, so this study aimed to determine the prevalence of T. Lewisi in Rattus norvegicus in Author: Maria de Lourdes Guarnieri Barbosa Bueno.

Background. Trypanosoma is a genus of unicellular parasitic flagellate osoma brucei species and Trypanosoma cruzi are the major agents of human trypanosomiasis; other Trypanosoma species can cause human disease, but are rare.

In Marcha year-old woman presented to a healthcare facility in southern Vietnam with fever, headache, and Cited by: The Transmission of Trypanosoma lewisi by the Rat-Flea (Ceratophyllus fasciatus). (Preliminary Communication.). Minchin, E.; Thomson, J. Proceedings of the Royal Society of London.

Series B, Containing Papers of a Biological Character (). 82 ()– We decided to test the effect of Trypanosoma musculi from mice, an organism with very similar biological characteristics to T. lewisi, to see if this trypanosomatid could induce a similar effect.

Abstract. The reproductive activity of Trypanosoma lewisi was strikingly enhanced and sometimes prolonged for 2 days when sublethal doses of adenine were given to rats. The drug was effective when given for 5 or 7 days in the diet and/or intraperitoneally, starting one or two days before infection through two days after by: 5."The Life-History of Trypanosoma Lewisi and Trypanosoma Brucei" is an article from The Journal of Infectious Diseases, Volume 1.

View more articles from The Journal of Infectious Diseases. View this article on JSTOR. View this article's JSTOR metadata.Trypanosoma parasites survive extracellularly in host blood (Fig. A) and induce a debilitating protozoan disease characterized by fever, anemia, and neurological symptoms.

Among Trypanosoma parasites, Trypanosoma brucei causes sleeping sickness in humans and is endemic in Africa [3].We found that the growth of was significantly inhibited when in vitro cultures were subjected to.