Results 171 to 180 of about 9,151 (205)

Occurrence and Probability Maps of Lutzomyia longipalpis and Lutzomyia cruzi (Diptera: Psychodidae: Phlebotominae) in Brazil.

Journal of Medical Entomology, 2017
Leishmaniases are serious diseases caused by trypanosomatid protozoans of the genus Leishmania transmitted by the bite of phlebotomine sand flies. We analyzed records pertaining to Lutzomyia longipalpis (Lutz and Neiva, 1912) and Lutzomyia cruzi (Mangabeira, 1938) in Brazil from the following sources: the collection of phlebotomine sand flies of the ...
Paloma Helena Fernandes Shimabukuro, Roberta Lima Caldeira, O S Carvalho   +2 more
exaly   +3 more sources

Infection of Lutzomyia longipalpis in cats infected with Leishmania infantum

Veterinary Parasitology, 2020
The clinical manifestations most frequently observed in cats with leishmaniasis caused by Leishmania infantum are cutaneous alterations, which suggest a high parasitic load in the skin and the possibility of infecting a vector. This study evaluated the infectiousness of to phlebotomine sand flies cats infected with L. infantum.
Ivete Lopes de Mendonça, Joilson Ferreira Batista, Kayo Sandro Pimentel do Prado Lopes, Francisco das Chagas Ribeiro Magalhães Neto, Diana Sousa Alcântara, Yslla Fernanda Fitz Balo Merigueti, Carlos Henrique Nery Costa   +6 more
openaire   +2 more sources

Semiochemical mediation of oviposition by the phlebotomine sandfly Lutzomyia longipalpis

Medical and Veterinary Entomology, 1993
Abstract. Extracts of rabbit food, hay and rabbit faeces elicited a positive oviposition response from gravid female Lutzomyia longipalpis sandflies (Diptera: Phlebotominae).
J G Hamilton, R D Ward
exaly   +3 more sources

Lutzomyia longipalpis, Gone with the Wind and Other Variables

Neotropical Entomology, 2020
Lutzomyia longipalpis (Lutz & Neiva) is the main vector of Leishmania infantum (Nicolle) in America, associated in turn with the current spread and urbanization of American visceral leishmaniasis (AVL). The vector distribution in AVL foci shows a spatial-temporal clustering despite the different epidemiological contexts. The factors associated with the
openaire   +3 more sources

Host preferences of the phlebotomine sandfly Lutzomyia longipalpis in Amazonian Brazil

Medical and Veterinary Entomology, 1992
Abstract. Experiments were undertaken to determine the relative attractiveness of humans, dogs and chickens to Lutzomyia longipalpis, the principal vector of Leishmania chagasi causing American visceral leishmaniasis Field ...
Jeffrey Jon Shaw, Christopher Dye
exaly   +3 more sources

Antissaliva Antibodies of Lutzomyia Longipalpis in area of Visceral Leishmaniasis

Pediatric Infectious Disease Journal, 2016
The aim of the present study was to assess the presence of antissaliva antibodies of Lutzomyia longipalpis in human hosts living in area of visceral leishmaniasis, located in the Center-West region of Brazil. The presence of antissaliva antibodies of L. longipalpis exhibited a strong correlation with the protection and development of antibodies against
Thiago Leite, Fraga, Magda Freitas, Fernandes, Elenir Rose Jardim Cury, Pontes, Ana Paula Silva, Levay, Elenice Brandão, Almeida da Cunha, Adriana de Oliveira, França, Maria Elizabeth Cavalheiros, Dorval   +6 more
openaire   +2 more sources

Intestinal Flow and Digestive Parameters of Lutzomyia Longipalpis Larvae

Journal of Insect Physiology
Lutzomyia longipalpis Lutz & Neiva, 1912 (Diptera, Psychodidae), is the primary vector of Leishmania infantum Nicole, 1908, the etiological agent of American visceral leishmaniasis. During their development, sandfly larvae pass through four instars, consuming soil particles enriched with microorganisms and decomposing organic material.
Luccas Gabriel Ferreira, Malta, Bianca Stacanelli, Ribeiro, Davi, Viegas-Melo, Marques Serafim, Pinho-Junior, Maurício Roberto Viana, Sant'Anna, Marcos Horário, Pereira, Nelder Figueiredo, Gontijo   +6 more
openaire   +2 more sources

Copulation songs in three siblings of Lutzomyia longipalpis (Diptera: Psychodidae)

Transactions of the Royal Society of Tropical Medicine and Hygiene, 2002
We present the results of recording male courtship songs of the sandfly Lutzomyia longipalpis. The striking differences in the songs from 3 Brazilian populations of this sandfly with 3 distinct male pheromones support the 3 sibling species previously proposed based on this characteristic.
De Souza, N. A., Ward, R. D., Hamilton, J. G.C., Kyriacou, C. P., Peixoto, A. A.   +4 more
openaire   +3 more sources

The salivary 5′-nucleotidase/phosphodiesterase of the hematophagus sand lutzomyia fly, Lutzomyia longipalpis

Insect Biochemistry and Molecular Biology, 2000
Salivary gland homogenates from adult female Lutzomyia longipalpis sand flies contain large amounts of 5'-nucleotidase and phosphodiesterase activities. Phosphodiesterase activity was found to be associated with 5'-nucleotidase in several independent experiments: (i) it coelutes with 5'-nucleotidase on a molecular sieving column, (ii) it coelutes with ...
José M.C. Ribeiro, Edgar D. Rowton, Rosane Charlab   +2 more
openaire   +1 more source

Blood-finding strategy of a capillary-feeding sandfly, Lutzomyia longipalpis

Comparative Biochemistry and Physiology Part A: Physiology, 1986
Salivary gland homogenates of adult female Lutzomyia longipalpis inhibited platelet aggregation induced by ADP and collagen. Apyrase (ATP diphosphohydrolase) activity was prominent, requiring Ca2+ but not Mg2+ and a pH optimum of 8.0. Human as well as rabbit hosts developed a well delimited erythema, evident 2-3 min after initial probing and lasting ...
J M, Ribeiro, P A, Rossignol, A, Spielman   +2 more
openaire   +2 more sources