title: Loop-mediated isothermal amplification test for Trypanosoma vivax based on satellite repeat DNA.
abstract: Trypanosoma vivax is major cause of animal trypanosomiasis and responsible for enormous economic burden in Africa and South America animal industry. T. vivax infections mostly run low parasitaemia with no apparent clinical symptoms, making diagnosis a challenge. This work reports the design and evaluation of a loop-mediated isothermal amplification (LAMP) test for detecting T. vivax DNA based on the nuclear satellite repeat sequence. The assay is rapid with results obtained within 35 min. The analytical sensitivity is ∼ 1 trypanosome/ml while that of the classical PCR tests ranged from 10 to 10(3)trypanosomes/ml. The T. vivax LAMP test reported here is simple, robust and has future potential in diagnosis of animal trypanosomiasis in the field.
authors.affiliation: School of Veterinary Sciences, University of Queensland, Gatton, QLD 4343, Australia. zablon@iprimus.com.au
authors.forename: Z K
authors.initials: ZK
authors.lastname: Njiru
authors.forename: J O
authors.initials: JO
authors.lastname: Ouma
authors.forename: R
authors.initials: R
authors.lastname: Bateta
authors.forename: S E
authors.initials: SE
authors.lastname: Njeru
authors.forename: K
authors.initials: K
authors.lastname: Ndungu
authors.forename: P K
authors.initials: PK
authors.lastname: Gitonga
authors.forename: S
authors.initials: S
authors.lastname: Guya
authors.forename: R
authors.initials: R
authors.lastname: Traub
mesh_terms: D016054:DNA, Protozoan / Q000235:genetics*; D018895:Microsatellite Repeats / Q000235:genetics*; D021141:Nucleic Acid Amplification Techniques / Q000379:methods*; D016689:Trypanosoma vivax / Q000235:genetics* / Q000302:isolation & purification*
chemical_list: D016054:DNA, Protozoan