Now showing items 111-120 of 120

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.

Bejarano, Eduar Elías; Duque, Patricia; Vélez, Iván Darío (Estados Unidos: Journal of Medical Entomology, 2004., 2019-10-28)

A new species of phlebotomine sand ßy, Lutzomyia emberai n. sp, is described and illustrated from specimens collected in a dwelling of the Embera Indian community, situated in the foothills of the Serranõ´a delBaudo´ on ...
Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).

Pérez Doria, Alveiro; Bejarano, Eduar Elías (Murcia, España: Anales de Biología, 2005., 2019-10-25)

The first teratological case in the visceral leishmaniasis vector Lutzomyiaevansi, is described and illustrated from one female specimen collected in a peri urban area of the municipality of Sincelejo, department of Sucre, ...
Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.

Johnston, Douglas A.; Luna Tapia, Arturo; Eberle, Karen E.; Palmer, Glen E. (Estados Unidos: Eukaryotic Cell , 2013., 2019-10-03)

Disruption of vacuolar biogenesis in the pathogenic yeast Candida albicans causes profound defects in polarized hyphal growth. However, the precise vacuolar pathways involved in yeast-hypha differentiation have not been ...
Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.

Luna Tapia, Arturo; Kerns, Morgan E.; Jursic, Branko S.; Eberle, Karen E.; Palmer, Glen E. (Estados Unidos: Antimicrobial Agents and Chemotherapy , 2015., 2019-10-02)

The purpose of this study was to characterize the effects of azole treatment upon the integrity of the Candida albicans vacuole and to determine whether, in turn, vacuolar trafficking influences azole susceptibility. ...
Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.

Vivero, Rafael José; Bejarano, Eduar Elías; Castro, Mirley; Vélez, Andrés; Pérez, Juan Esteban; Pérez Doria, Alveiro; Vélez, Iván Darío (São Paulo, Brasil : Biota Neotropica, 2010., 2019-10-11)

Lutzomyia trinidadensis (Newstead, 1922), L. bettinii Feliciangeli, Ramírez-Pérez & Ramírez, 1988, L. flaviscutellata (Mangabeira, 1942), L. yuilli Young & Porter, 1972, L. saulensis (Floch & Abonnenc, 1944), L. runoides ...
Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.

Bejarano, Eduar Elías; Pérez Doria, Alveiro; Sierra, Diana (São Paulo, Brasil: Biota Neotropica, 2010., 2019-10-11)

Trichomyia andina, a new species of non-hematophagous psychodid fly is described and illustrated from males collected in the Risaralda Department, Colombia. This species belongs to the subgenus Opisthotrichomyia Bravo, ...
Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.

Bejarano, Eduar Elías; Pérez Doria, Alveiro; Sierra, Diana (São Paulo, Brasil:Biota Neotropica, 2009., 2019-10-11)

Trichomyia quimbaya sp. nov. is described and illustrated from a male specimen collected with a CDC light trap in the coffee region of the Cordillera Central of Colombia. It can be easily distinguished from others species ...
Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.

Atencia, María Claudia; Pérez, María de Jesús; Caldera, Sandy Milena; Jaramillo, María Cristina; Bejarano, Eduar Elías (Bogotá, Colombia: Revista Biomédica, 2018., 2019-09-20)

Aedes aegypti is the most important mosquito species in America for the transmission of viruses of dengue, Zika, Chikungunya and yellow fever. Ecological factors as well as chemical controls can affect the genetic composition ...
Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).

Lambraño Cruz, Luz Fernanda; Bejarano Martínez, Eduar Elías; Manjarrez Pinzón, Gustavo (Barranquilla, Colombia: Salud Uninorte, 2012., 2019-10-08)

Desde hace más de diez años se registran casos autóctonos de leishmaniasis cutánea y visceral de ocurrencia esporádica en Sincelejo, principalmente en barrios periféricos de esta ciudad, situación que ha estado acompañada ...
Zika virus like particles elicit protective antibodies in mice.

Salvo, Mauricio A; Kingstad Bakke, Brock; Salas Quinchucua, Cristhian; Camacho, Erwin; Osorio, Jorge E. (California, Estados Unidos: PLoS Neglected Tropical Diseases , 2018., 2019-10-29)

Mosquito-borne Zika virus (ZIKV) typically causes a mild and self-limiting illness known as Zika fever. Since its recent emergence in 2014 in the American continent, ZIKV infection during pregnancy has been closely associated ...

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Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.
...
Bejarano, Eduar Elías | 2019-10-28

A new species of phlebotomine sand ßy, Lutzomyia emberai n. sp, is described and illustrated from specimens collected in a dwelling of the Embera Indian community, situated in the foothills of the Serranõ´a delBaudo´ on the Colombian PaciÞc coast. The morphological characteristics of L. emberai n. sp. suggest that it belongs to the series pia of the group verrucarum, easily differentiated from the other members of this group by diagnostic characters on the palps, labro-pharynx, thorax, and spermathecal ducts. The discovery of this new phlebotomine raises to seven the number of species in the series pia, including Lutzomyia pia (Fairchild & Hertig, 1961); Lutzomyia reclusa Fernandez & Rogers, 1991; Lutzomyia suapiensis Le Pont, Torrez-Espejo & Dujardin, 1997; Lutzomyia tihuiliensis Le Pont, Torrez-Espejo & Dujardin, 1997; Lutzomyia tocaniensis Le Pont, Torrez-Espejo & Dujardin, 1997; Lutzomyia limafalcaoae (Wolff & Galati, 2002); and Lutzomyia emberai Bejarano, Duque & Velez, 2004, n. sp. The taxonomy, distribution, and medicalimportance of this series are reviewed.

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Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).
...
Pérez Doria, Alveiro | 2019-10-25

The first teratological case in the visceral leishmaniasis vector Lutzomyiaevansi, is described and illustrated from one female specimen collected in a peri urban area of the municipality of Sincelejo, department of Sucre, Colombia. The anomalous specimen presented a bifurcation at the base of a sperma the cae, wich originated a third undeveloped sperma the cae. The observed frequency of this anomaly in the sand fly population was 1:311.

LEER
Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.
...
Johnston, Douglas A. | 2019-10-03

Disruption of vacuolar biogenesis in the pathogenic yeast Candida albicans causes profound defects in polarized hyphal growth. However, the precise vacuolar pathways involved in yeast-hypha differentiation have not been determined. Previously we focused on Vps21p, a Rab GTPase involved in directing vacuolar trafficking through the late endosomal prevacuolar compartment (PVC). Herein, we identify two additional Vps21p-related GTPases, Ypt52p and Ypt53p, that colocalize with Vps21p and can suppress the hyphal defects of the vps21 / mutant. Phenotypic analysis of gene deletion strains revealed that loss of both VPS21 and YPT52 causes synthetic defects in endocytic trafficking to the vacuole, as well as delivery of the virulence-associated vacuolar membrane protein Mlt1p from the Golgi compartment. Transcription of all three GTPase-encoding genes is increased under hyphal growth conditions, and overexpression of the transcription factor Ume6p is sufficient to increase the transcription of these genes. While only the vps21 / single mutant has hyphal growth defects, these were greatly exacerbated in a vps21 / ypt52 / double mutant. On the basis of relative expression levels and phenotypic analysis of gene deletion strains, Vps21p is the most important of the three GTPases, followed by Ypt52p, while Ypt53p has an only marginal impact on C. albicans physiology. Finally, disruption of a nonendosomal AP-3-dependent vacuolar trafficking pathway in the vps21 / ypt52 / mutant, further exacerbated the stress and hyphal growth defects. These findings underscore the importance of membrane trafficking through the PVC in sustaining the invasive hyphal growth form of C. albicans.

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Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.
...
Luna Tapia, Arturo | 2019-10-02

The purpose of this study was to characterize the effects of azole treatment upon the integrity of the Candida albicans vacuole and to determine whether, in turn, vacuolar trafficking influences azole susceptibility. Profound fragmentation of the C. albicans vacuole can be observed as an early consequence of azole treatment, and it precedes significant growth inhibition. In addition, a C. albicans vps21/ mutant, blocked in membrane trafficking through the late endosomal prevacuolar compartment (PVC), is able to grow significantly more than the wild type in the presence of several azole antifungals under standard susceptibility testing conditions. F.

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Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.
...
Vivero, Rafael José | 2019-10-11

Lutzomyia trinidadensis (Newstead, 1922), L. bettinii Feliciangeli, Ramírez-Pérez & Ramírez, 1988, L. flaviscutellata (Mangabeira, 1942), L. yuilli Young & Porter, 1972, L. saulensis (Floch & Abonnenc, 1944), L. runoides (Fairchild & Hertig, 1953), L. ayrozai (Barretto & Coutinho, 1940), L. claustrei Abonnenc, Leger & Fauran, 1979, L. walkeri (Newstead, 1914), L. preclara Young & Arias, 1984, L. (geniculata) sp., L. (squamiventris) sp., and L. (Evandromyia) sp., are recorded for the first time in the department of Vichada, Colombia. In addition, the presence of L. antunesi (Coutinho, 1939) and L. aragaoi (Costa Lima, 1932) in this department is confirmed. Sand flies were collected in the municipalities of Puerto Carreño, Cumaribo, and La Primavera, using CDC light traps, Shannon trap, and human bait, and by active search in resting places. The epidemiological importance of these sand fly species is discussed in relation with the cutaneous leishmaniasis.

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Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.
...
Bejarano, Eduar Elías | 2019-10-11

Trichomyia andina, a new species of non-hematophagous psychodid fly is described and illustrated from males collected in the Risaralda Department, Colombia. This species belongs to the subgenus Opisthotrichomyia Bravo, 2001 and is distinguished from congeners in having a gonostyle broad, multipartite, partially serrated and infuscated, with a long hyaline apex directed inward and backward. The subgenus Opisthotrichomyia is now comprised of seven species, including T. brevitarsa (Rapp 1945), T. vargasi Barretto, 1954, T. nocturna Bravo, 2001, T. festiva Bravo, 2001, T. fluminensis Bravo, 2001, T. riodocensis Alexander, Freitas & Quate, 2001, and T. andina, sp. Nov.

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Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.
...
Bejarano, Eduar Elías | 2019-10-11

Trichomyia quimbaya sp. nov. is described and illustrated from a male specimen collected with a CDC light trap in the coffee region of the Cordillera Central of Colombia. It can be easily distinguished from others species of Trichomyia by the pair of strong digitiform prolongations of the gonocoxite, both of which end in large spines, with apex directed inwards.

LEER
Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.
...
Atencia, María Claudia | 2019-09-20

Aedes aegypti is the most important mosquito species in America for the transmission of viruses of dengue, Zika, Chikungunya and yellow fever. Ecological factors as well as chemical controls can affect the genetic composition of Ae. aegypti populations, which is why its genetic characterization is necessary.

LEER
Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).
...
Lambraño Cruz, Luz Fernanda | 2019-10-08

Desde hace más de diez años se registran casos autóctonos de leishmaniasis cutánea y visceral de ocurrencia esporádica en Sincelejo, principalmente en barrios periféricos de esta ciudad, situación que ha estado acompañada por el hallazgo de especies de Lutzomyia (6,14). Sin embargo, se desconoce la variación temporal de estas especies en el entorno urbano; información que podría ser útil para la toma de decisiones en la lucha antivectorial por parte de los entes de salud. Considerando que los flebotomíneos constituyen un riesgo para la población humana como transmisores de Leishmania spp, los objetivos de este trabajo fueron determinar la diversidad de especies del género Lutzomyia y su variación temporal en la zona urbana de Sincelejo.

LEER
Zika virus like particles elicit protective antibodies in mice.
...
Salvo, Mauricio A | 2019-10-29

Mosquito-borne Zika virus (ZIKV) typically causes a mild and self-limiting illness known as Zika fever. Since its recent emergence in 2014 in the American continent, ZIKV infection during pregnancy has been closely associated with a wide range of congenital abnormalities. To date, no vaccines or antivirals are publicly available. We developed Zika virus-like particles (VLPs) and evaluated their immunogenicity and protective efficacy in mouse models. ZIKV VLPs (ZIKVLPs) formulated with alum were injected into 6-8-week-old interferon deficient AG129 mice as well as wild type BALB/c mice. Control mice received PBS/alum. Animals were challenged with 200 PFU (>1000 AG129 LD50s) of ZIKV strain H/PF/2013. All vaccinated mice survived with no morbidity or weight loss while control animals either died at 9 days post challenge (AG129) or had increased viremia (BALB/c). Neutralizing antibodies were observed in all ZIKVLP vaccinated mice. The role of neutralizing antibodies in protecting mice was demonstrated by passive transfer. Our findings demonstrate the protective efficacy of the ZIKVLP vaccine and highlight the important role that neutralizing antibodies play in protection against ZIKV infection.

LEER

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Repositorio Digital

Browsing FAA. Investigaciones Biomédicas by Title

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.

Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).

Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.

Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.

Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.

Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.

Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.

Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.

Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).

Zika virus like particles elicit protective antibodies in mice.

Envíos recientes

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.

Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).

Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.

Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.

Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.

Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.

Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.

Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.

Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).

Zika virus like particles elicit protective antibodies in mice.

Browsing FAA. Investigaciones Biomédicas by Title

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp. ﻿

Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924). ﻿

Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth. ﻿

Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals. ﻿

Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana. ﻿

Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia. ﻿

Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia. ﻿

Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4. ﻿

Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia). ﻿

Zika virus like particles elicit protective antibodies in mice. ﻿

Envíos recientes

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.

Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).

Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.

Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.

Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.

Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.

Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.

Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.

Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).

Zika virus like particles elicit protective antibodies in mice.

Taxonomy and distribution of the series pia of the Lutzomyia verrucarum group (Diptera: Psychodidae), with a description of Lutzomyia emberai n. sp.

Teratología en el vector de leishmaniosis visceral Lutzomyia evansi (Núñez-Tovar, 1924).

Three prevacuolar compartment Rab GTPases impact candida albicans hyphal growth.

Trafficking through the late endosome significantly impacts candida albicans tolerance of the azole antifungals.

Trece registros nuevos de Lutzomyia (Diptera: Psychodidae) para el departamento de Vichada, Orinoquia Colombiana.

Trichomyia andina sp. nov., un nuevo psicódido no hematófago (Diptera: Psychodidae: Trichomyiinae) de Colombia.

Trichomyia quimbaya, una nueva especie de Trichomyiinae (Diptera: Psychodidae) de la Cordillera Central de Colombia.

Variabilidad genética de Aedes aegypti en el departamento de Sucre, Colombia, mediante el análisis de la secuencia de nucleótidos del gen mitocondrial ND4.

Variación temporal de especies de Lutzomyia (Diptera: Psychodidae) en el área urbana de Sincelejo (Colombia).

Zika virus like particles elicit protective antibodies in mice.