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Mostrando ítems 1-20 de 21
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Aborto por Leptospira en una yegua en Salta, Argentina
Micheloud, Juan Francisco; Martinez, Mara Leila; Zurita, Sofía G.; Grune Loffler, Sylvia; Romero, Graciela Noemi; Brihuega, Bibiana Felicitas (2015)La leptospirosis en equinos es generalmente asintomática, aunque existen regiones donde la enfermedad constituye un problema. Aquí se describe un caso de aborto en yegua debido a la infección por este agente. Se efectuó ... -
Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine
Scialfa, Exequiel; Videla, Yanina; Grune Loffler, Sylvia; Quintana, Silvina; Aguirre, Pablo; Brihuega, Bibiana Felicitas (Faculty of Biotechnology and Food Sciences, Slovakia, 2019-07)Leptospirosis is a zoonotic disease of global distribution, caused by bacteria of the genus Leptospira. These spirochetes are living organisms free of mud and water; pathogenic leptospires can survive several days in fresh ... -
Comparison of ELISA using recombinant LipL32 and sonicated antigen of leptospira for detecting bovine leptospirosis
Martinez, Mara Leila; Rodriguez, Marcelo A.; Saraullo, Vanina Rosa; Irazu, Lucía E.; Hamer, Micaela; Watanabe, Olivia; Grune Loffler, Sylvia; Romero, Graciela Noemi; Samartino, Luis Ernesto; Brihuega, Bibiana Felicitas (Elsevier, 2022-01)Leptospirosis is one of the most widely distributed zoonosis in the world. Bovine leptospirosis is a serious problem in bovine production, causing reproductive losses. The aim of this work was to compare recombinant LipL32 ... -
Detección de Leptospira spp. (Spirochaetales: Leptospiraceae) en muestras ambientales de regiones habitadas por poblaciones vulnerables del norte argentino
Grune Loffler, Sylvia; Periago, María Victoria; Watanabe, Olivia; Saraullo, Vanina Rosa; Aldama, Evangelina; Cejas, Graciela; Cruz, Diego; Delgado, Cintia; Goizueta, Carolina; Hamer, Micaela; Martinez, Mara Leila; Brihuega, Bibiana Felicitas (Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2021-12)La leptospirosis continúa siendo hoy en día un problema para la salud pública, principalmente en poblaciones de bajos recursos socioeconómicos. En este trabajo se presenta la detección de leptospiras patógenas en muestras ... -
Diagnosis of canine leptospirosis: evaluation of two PCR assays in comparison with the microagglutination test = Diagnóstico de leptospirose canina: avaliação de dois ensaios de PCR em comparação com o teste de microaglutinação
Martin, Paula L.; Stanchi, Nestor O.; Brihuega, Bibiana Felicitas; Bonzo, Estela; Galli, Lucía; Arauz, María S. (Colegio Brasileiro de Patologia Animal, 2019-04)Canine leptospirosis is definitely diagnosed by demonstrating seroconversion in paired serum samples from the acute and convalescent period by the microagglutination test (MAT). However, the application of a polymerase ... -
Diferenciación de serovares de leptospiras patógenas mediante PCR del gen ligB y secuenciación = Differentiation of pathogenic leptospires spp by PCR of ligB gene and sequencing
Martinez, Mara Leila; Grune Loffler, Sylvia; Romero, Graciela Noemi; Brihuega, Bibiana Felicitas (Asociación Argentina de Microbiología, 2018)La leptospirosis es la zoonosis de mayor distribución mundial. El objetivo del presente trabajo fue desarrollar una técnica molecular que diferencie leptospiras patógenas. Se amplificó mediante PCR y se secuenció una ... -
Discriminación genotípica de serovariedades del serogrupo Icterohaemorrhagiae pertenecientes a Leptospira interrogans (Spirochaetales: Leptospiraceae) y el análisis de distancias génicas mediante coordenadas principales = Genotypic discrimination of serovars belonging to the serogroup Icterohaemorrhagiae of Leptospira interrogans (Spirochaetales: Leptospiraceae) and the analysis of genetic distances using principal coordinates
Grune Loffler, Sylvia; Martinez, Mara Leila; Romero, Graciela Noemi; Brihuega, Bibiana Felicitas (Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias, 2016)La leptospirosis es una zoonosis de amplia distribución mundial y de importancia en salud pública y veterinaria. El serogrupo Icterohaemorrhagiae toma importancia, ya que ha sido aislado con frecuencia en roedores y en ... -
First isolation of Leptospira borgpetersenii from Fetuses of Wild boars (Sus scrofa)
Brihuega, Bibiana Felicitas; Grune Loffler, Sylvia; Samartino, Luis Ernesto; Romero, Graciela Noemi; Auteri, Carmelo Domingo; Martinez, Mara Leila (2017-02-07)Leptospirosis is a worldwide zoonose and is endemic in many countries. This zoonosis is maintained in nature by chronic renal infection of carrier animals, being rodents and other small mammals the most important reservoirs. ... -
First isolation of Leptospira interrogans from the arboreal squirrel Callosciurus erythraeus introduced in Argentina
Gozzi, Ana Cecilia; Guichon, Maria Laura; Benitez, Verónica Victoria; Romero, Graciela Noemi; Auteri, Carmelo Domingo; Brihuega, Bibiana Felicitas (Bioone, 2013-12-01)We isolated Leptospira strains from renal tissue samples of Asiatic red-bellied squirrels Callosciurus erythraeus, captured in Argentina. In December 2008, we captured 34 squirrels in the province of Santa Fe during a short ... -
First report of pathogenic Leptospira spp. in Tadarida brasiliensis bats (family Molossidae) and Eptesicus furinalis (family Vespertilionidae) of Argentina. New host species in this country? = Primer reporte de Leptospira spp. patógena en murciélagos Tadarida brasiliensis (familia: Molossidae) y Eptesicus furinalis (familia: Vespertilionidae) en Argentina. ¿Nuevas especies hospedadoras en el país?
Saraullo, Vanina Rosa; Grune Loffler, Sylvia; Pastorino, Florencia; Watanabe, Olivia; Alonso, Maria Laura; Hamer, Micaela; Moreira, Cecilia; Martinez, Mara Leila; Martinez, Gustavo; Brihuega, Bibiana Felicitas (Elsevier, 2021-09)Leptospirosis is an endemic disease caused by Leptospira spp., a bacterium that affects animals and humans. In recent years, the number of reports of leptospirosis in wild animals has increased, which highlights the need ... -
Intrinsic and extrinsic factors related to pathogen infection in wild small mammals in intensive milk cattle and swine production systems
Lovera, Rosario; Fernández, María Soledad; Jacob, Jens; Lucero, Nidia; Morici, Gabriel Edgardo; Brihuega, Bibiana Felicitas; Farace, María Isabel; Caracostantogolo, Jorge Luis; Cavia, Regino (2017)Background: Understanding the ecological processes that are involved in the transmission of zoonotic pathogens by small mammals may aid adequate and effective management measures. Few attempts have been made to analyze ... -
Isolation of saprophytic Leptospira spp. from a selected environmental water source of Argentina = Aislamiento de Leptospira spp. saprófitas desde fuentes de agua en un ambiente seleccionado de Argentina
Scialfa, Exequiel; Grune Loffler, Sylvia; Brihuega, Bibiana Felicitas; Aguirre, Pablo; Rivero, Marina (2018-09)Ten Leptospira spp. strains were isolated from water samples from Nievas stream, Olavarría, Buenos Aires province (Argentina). The isolates showed the typical motility and morphology of the genus Leptospira under dark field ... -
New enzyme-linked immunoassay for the detection of specific antibodies against multiple Leptospira serogroups in bovine sera
Martinez, Mara Leila; Rodriguez, Marcelo A.; Irazu, Lucía E.; Romero, Graciela Noemi; Saraullo, Vanina Rosa; Watanabe, Olivia; Hamer, Micaela; Grune Loffler, Sylvia; Samartino, Luis Ernesto; Brihuega, Bibiana Felicitas (Elsevier, 2021-04)Leptospirosis is a zoonotic disease with worldwide endemicity in Argentina, it is a significant public health problem in low-income populations. Bovine leptospirosis is a serious economic problem for cattle production, ... -
Optimization and comparative analysis of LAMP and PCR techniques for the detection of leptospiral DNA in Golden Syrian hamsters
Hamer, Micaela; Watanabe, Olivia; Saraullo, Vanina Rosa; Ortega, Facundo Miguel; Sanchez, Maria Cristina; Martinez, Mara Leila; Brihuega, Bibiana Felicitas; Grune Loffler, Sylvia (Springer, 2023-08)Leptospirosis is a zoonotic disease with significant public health and economic impact worldwide. Rapid and accurate diagnosis is essential for effective prevention and treatment. This study optimized a loop-mediated ... -
Potenciales causas de pérdidas reproductivas en llamas (Lama glama) de Jujuy, Argentina
Marin, Raul Eduardo; Moré, Gastón; Brihuega, Bibiana Felicitas; Canton, German Jose; Lamas, Hugo Eduardo (Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, 2022-01)La cría de llamas es una importante actividad de impacto socioeconómico en la región Puna de la Provincia de Jujuy, sin embargo, la misma tiene una baja tasa de procreo. Con el objetivo de estudiar potenciales causas de ... -
Primer aislamiento de Leptospira borgpetersenii de un feto de jabalí (Sus scrofa)
Brihuega, Bibiana Felicitas; Samartino, Luis Ernesto; Romero, Graciela Noemi; Auteri, Carmelo Domingo; Martinez, Mara Leila; Grune Loffler, Sylvia (Ediciones INTA, 2022-08)La leptospirosis es una zoonosis mundial y es endémica en muchos países. Esta enfermedad se mantiene en la naturaleza por la infección renal crónica de los animales portadores; los roedores y otros mamíferos pequeños son ... -
Primer aislamiento de Leptospira borgpetersenii serovar Hardjo tipo Hardjo Bovis a partir de un caso clínico en Argentina = First isolation of Leptospira borgpetersenii serovar Hardjo type Hardjo Bovis from a clinical case in cattle in Argentina
Koval, Ariel Alejandro; Brihuega, Bibiana Felicitas; Grune Loffler, Sylvia; López, S.; Saint Martin, Marcos; Lagioia, Gustavo Germán; Insaugarat, Juan Ramón (Elsevier, 2020-09)Se describe el primer aislamiento y la tipificación molecular de Leptospira borgpetersenii serovar Hardjo Bovis en Argentina, obtenido a partir de orina de vacas abortadas de un rodeo de cría ubicado en Saladillo, provincia ... -
Serological Analysis by Enzyme-Linked Immunosorbent Assay Using Recombinant Antigen LipL32 for the Diagnosis of Swine Leptospirosis
Hartleben, Cláudia P.; Leal, Fernanda M. A.; Monte, Leonardo G.; Hartwig, Daiane D.; Seixas, Fabiana K.; Vasconcellos, Sílvio A.; Brihuega, Bibiana Felicitas; Dellagostin, Odir A. (Springer, 2013-02)Leptospirosis is an important global zoonotic disease caused by pathogenic Leptospira spp. species. Swine leptospirosis has a major economic impact because pigs are sources of animal protein and by-products. The signs of ... -
Seroprevalence for selected pathogens of zoonotic importance in wild nutria (Myocastor coypus)
Martino, Pablo Eduardo; Stanchi, Néstor Oscar; Silvestrini, María Pía; Brihuega, Bibiana Felicitas; Samartino, Luis Ernesto; Parrado, Eduardo Joaquín (Springer, 2014-06)Little information is present in the literature on diseases of the nutria (Myocastor coypus) in the wild. Serum samples obtained from 176 trapped animals were tested for antibody reactivity against 11 pathogens of significant ... -
Use of Chelex-100 for the molecular diagnosisof five animal pathogens
Tomazic, Mariela Luján; Hamer, Micaela; Bustos, Carla Paola; Arregui, Matias Ezequiel; Ascencio, Mariano; Saraullo, Vanina Rosa; Watanabe, Olivia; Brihuega, Bibiana Felicitas; Rodriguez, Anabel Elisa; Grune Loffler, Sylvia (Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2021-06)Molecular tools have improved conventional veterinary diagnosis. Acid nucleic extraction is a key step for downstream applications. This work aimed to compare the DNA extraction method Chelex-100 resin (M1) ...