Linked Life Data

8161835

Source:http://linkedlifedata.com/resource/pubmed/id/8161835

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-5-20
pubmed:abstractText
To evaluate the vector competence of some Lutzomyia spp. (Diptera: Psychodidae) for Leishmania (Viannia) spp. (Kinetoplastida: Trypanosomatidae), experimental infections of anthropophilic sandflies from the Colombian Pacific coast were performed, through membrane feeding and xenodiagnosis on hamsters infected with Le. (V.)braziliensis or Le. (V.)panamensis. Wild-caught or F1 generation females of Lutzomyia gomezi, Lu. hartmanni, Lu.panamensis and Lu.trapidoi were allowed to feed on hamster lesions and then maintained at 26 degrees C and > 80% r.h. on a sugar-water diet until dissection on the fifth day post-infection (p.i.). Despite similar infection rates (range 37-44%) in both Lu.gomezi and Lu.trapidoi, infections were heavier (> 100 parasites) in the latter species. Infections of Lu.trapidoi with Le.braziliensis (n = 21) and Le.panamensis (n = 27) showed parasite migration toward the foregut, with promastigote colonization of the stomodeal valve and appearance of infective forms. In contrast, infections of Lu.gomezi with Le.braziliensis (n = 10) and Le.panamensis (n = 5) were light (< 50 parasites) and usually restricted to the pylorus. In Lu.hartmanni, only a few promastigotes were found in the pylorus and midgut of 3/8 specimens infected with Le.braziliensis, and no Le.panamensis developed (n = 19). By day 5 p.i., promastigote colonization of the hind- and midgut by Le.panamensis was observed in 2/4 Lu.panamensis but not Le.braziliensis (n = 3). It was concluded that Lu.trapidoi is a more efficient vector than Lu.gomezi for both Le.braziliensis and Le.panamensis, and that Lu.hartmanni and Lu.panamensis are of minor importance for Leishmania transmission in this endemic area.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0269-283X
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Vector competence of some neotropical sandflies for the Leishmania (Viannia) braziliensis complex.
pubmed:affiliation
Fundación Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.