Search Results - "Lawyer, P. G."

Characterization of a blood activated chitinolytic system in the midgut of the sand fly vectors Lutzomyia longipalpis and Phlebotomus papatasi by Ramalho-Ortigão, J. M., Kamhawi, S., Joshi, M. B., Reynoso, D., Lawyer, P. G., Dwyer, D. M., Sacks, D. L., Valenzuela, J. G.

“…We characterized a cDNA from Phlebotomus papatasi, PpChit1, which encodes a midgut specific chitinase and show the presence of a functional, blood‐induced…”
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Lutzomyia longipalpis is a species complex: genetic divergence and interspecific hybrid sterility among three populations by Lanzaro, G C, Ostrovska, K, Herrero, M V, Lawyer, P G, Warburg, A

“…The sand fly Lutzomyia longipalpis is the vector of Leishmania donovani chagasi in Latin America. An analysis of genetic variability at 27 enzyme coding loci…”
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Stage-specific adhesion of Leishmania promastigotes to the sandfly midgut by Pimenta, P.F.P. (NIH, Bethesda, MD), Turco, S.J, McConville, M.J, Lawyer, P.G, Perkins, P.V, Sacks, D.L

“…Although leishmaniasis is transmitted to humans almost exclusively by the bite of infected phlebotomine sandflies, little is known about the molecules…”
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Development of Leishmania major in Phlebotomus duboscqi and Sergentomyia schwetzi (Diptera: Psychodidae) by Lawyer, P G, Ngumbi, P M, Anjili, C O, Odongo, S O, Mebrahtu, Y B, Githure, J I, Koech, D K, Roberts, C R

“…The extrinsic development of Leishmania major was observed in 2 man-biting sand flies, Phlebotomus duboscqi, a known vector, and Sergentomyia schwetzi, an…”
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Rhesus monkey model for Leishmania major transmitted by Phlebotomus papatasi sandfly bites by Probst, R. J., Wellde, B. T., Lawyer, P. G., Stiteler, J. S., Rowton, E. D.

“…Summary Leishmaniasis research needs a near‐human model for investigations of natural infection processes, immunological responses and evaluation of…”
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Quantitative in vitro drug potency and drug susceptibility evaluation of Leishmania ssp. from patients unresponsive to pentavalent antimony therapy by Jackson, J E, Tally, J D, Ellis, W Y, Mebrahtu, Y B, Lawyer, P G, Were, J B, Reed, S G, Panisko, D M, Limmer, B L

“…Quantitative in vitro drug sensitivity of 32 Leishmania isolates (16 from patients failing pentavalent antimony [SbV] therapy) was determined using a…”
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Biochemical characterization and zymodeme classification of Leishmania isolates from patients, vectors, and reservoir hosts in Kenya by Mebrahtu, Y B, Lawyer, P G, Pamba, H, Koech, D, Perkins, P V, Roberts, C R, Were, J B, Hendricks, L D

“…A total of 407 Leishmania and other Leishmania-like isolates obtained from patients, other vertebrates, sand fly vectors, and other arthropods from Kenya and…”
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Leishmania donovani parasites in the nasal secretions, tonsillopharyngeal mucosa, and urine centrifugates of visceral leishmaniasis patients in Kenya by Mebrahtu, Y B, Hendricks, L D, Oster, C N, Lawyer, P G, Perkins, P V, Pamba, H, Koech, D, Roberts, C R

“…In the early 1930s, investigators of visceral leishmaniasis stated that Leishman-Donovan bodies are found in body fluids of kala-azar patients, for example, in…”
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Phlebotomus guggisbergi (Diptera: Psychodidae), a vector of Leishmania tropica in Kenya by Lawyer, P G, Mebrahtu, Y B, Ngumbi, P M, Mwanyumba, P, Mbugua, J, Kiilu, G, Kipkoech, D, Nzovu, J, Anjili, C O

“…Sand flies were collected in light traps and on oiled papers at four active case sites of human cutaneous leishmaniasis due to Leishmania tropica at Muruku…”
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Phlebotomine sand fly (Diptera: Psychodidae) seasonal distribution and infection rates in a defined focus of Leishmania tropica by Johnson, R N, Lawyer, P G, Ngumbi, P M, Mebrahtu, Y B, Mwanyumba, J P, Mosonik, N C, Makasa, S J, Githure, J I, Roberts, C R

“…A two-year study was conducted of phlebotomine sand fly fauna in a defined focus of Leishmania tropica. A total of 17,947 sand flies representing 10 species…”
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Field evaluation of four repellents against Leptoconops americanus (Diptera: Ceratopogonidae) biting midges by Perich, M J, Strickman, D, Wirtz, R A, Stockwell, S A, Glick, J I, Burge, R, Hunt, G, Lawyer, P G

“…Four repellents, deet, AI3-37220, AI3-35765, and CIC-4, prepared as 12.5% ethanol solutions, were evaluated against biting midges on Stansbury Islands, UT…”
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Phlebotomine sand fly control using bait-fed adults to carry the larvicide Bacillus sphaericus to the larval habitat by Robert, L L, Perich, M J, Schlein, Y, Jacobson, R L, Wirtz, R A, Lawyer, P G, Githure, J I

“…Sugar meals of plant origin are an important component of the sand fly diet. We show that sugar solution baits have potential as vehicles for phlebotomine sand…”
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Human cutaneous leishmaniasis caused by Leishmania donovani s.l. in Kenya by Mebrahtu, Y B, Van Eys, G, Guizani, I, Lawyer, P G, Pamba, H, Koech, D, Roberts, C, Perkins, P V, Were, J B, Hendricks, L D

“…Our laboratory is characterizing Leishmania stabilates and isolates from active leishmaniasis cases. Smears and cultures from aspirates made on different dates…”
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Experimental transmission of Leishmania major to vervet monkeys (Cercopithecus aethiops) by bites of Phlebotomus duboscqi (Diptera: Psychodidae) by Lawyer, P G, Githure, J I, Anjili, C O, Olobo, J O, Koech, D K, Reid, G D

“…Experimental transmission of Leishmania major to vervet monkeys (Cercopithecus aethiops) was accomplished by bites of Phlebotomus duboscqi sandflies…”
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Epidemiologic investigation of an outbreak of cutaneous leishmaniasis in a defined geographic focus of transmission by Sanchez, J L, Diniega, B M, Small, J W, Miller, R N, Andujar, J M, Weina, P J, Lawyer, P G, Ballou, W R, Lovelace, J K

“…An outbreak of cutaneous leishmaniasis occurred in a unit of 608 Puerto Rican national guardsmen conducting jungle warfare training in the Panama Canal Area in…”
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Concurrent infection with Leishmania donovani and Leishmania major in a Kenyan patient: clinical description and parasite characterization by Mebrahtu, Y B, Lawyer, P G, Hendricks, L D, Muigai, R, Oster, C N, Perkins, P V, Koech, D K, Pamba, H, Roberts, C R

“…Leishmania isolates aspirated a few months apart from the spleen of an indigenous adult male kala-azar patient from Baringo District, Kenya, were biochemically…”
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A new rural focus of cutaneous leishmaniasis caused by Leishmania tropica in Kenya by Mebrahtu, Y B, Lawyer, P G, Ngumbi, P M, Kirigi, G, Mbugua, J, Gachihi, G, Wasunna, K, Pamba, H, Sherwood, J A, Koech, D K

“…We have identified a new rural focus of cutaneous leishmaniasis caused by Leishmania tropica in Muruku sublocation, Salama location, Laikipia district, Rift…”
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Laboratory Transmission of Rift Valley Fever Virus by Phlebotomus duboscqi, Phlebotomus papatasi, Phlebotomus sergenti, and Sergentomyia schwetzi (Diptera: Psychodidae) by Dohm, David J., Rowton, Edgar D., Lawyer, Phillip G., O’Guinn, Monica, Turell, Michael J.

“…We examined the potential for Phlebotomus papatasi (Scopoli), Phlebotomus duboscqi (Neveu-Lemarie), Phlebotomus sergenti (Parrot), and Sergentomyia schwetzi…”
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Experimental transmission of Leishmania mexicana to hamsters by bites of phlebotomine sand flies (Diptera: Psychodidae) from the United States by Lawyer, P G, Young, D G

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Human cutaneous leishmaniasis acquired in Texas by Gustafson, T L, Reed, C M, McGreevy, P B, Pappas, M G, Fox, J C, Lawyer, P G

“…Four cases of autochthonous human cutaneous leishmaniasis have been identified in south-central Texas since 1980. The patients presented with chronic…”
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