Edwin Pile | Universidad de Panamá (original) (raw)

Papers by Edwin Pile

A survey was carried out in order to study the geopolitical distribution of fascioliasis on Santi... more A survey was carried out in order to study the geopolitical distribution of fascioliasis on Santiago Island, Cape Verde. During the evaluation, conducted from May to June 2008, measurements were made and recorded regarding the size and infection rates of the snail, pH and water temperature and vertebrate infection rates. Snails and bovine feces samples were collected at random in all municipalities of Santiago Island, except Tarrafal, properly packed, and sent to the Laboratory of National Institute of Agricultural Research and Development (INIDA) where they were analyzed. The results showed positive results for stool examinations of cattle and the presence of an intermediate host (Lymnaea natalensis) in all localities visited. A positive correlation was also found between the vertebrate and invertebrate infection rate, with the highest rate recorded in Santa Cruz (72.72%) and the lowest in Praia (16.66%). The average infection rate observed for the snails and cattle was 51.51% and ...

Journal of Wildlife Diseases, 2023

BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access t... more BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Parasite, 2017

Toxoplasmosis is a worldwide zoonotic disease but information regarding domestic animals in Centr... more Toxoplasmosis is a worldwide zoonotic disease but information regarding domestic animals in Central America is scarce and fragmented. The aim of this study was to determine the seroprevalence of Toxoplasma gondii in domestic cats and dogs in different metropolitan regions of Panama. A total of 576 samples were collected; sera from 120 cats and 456 dogs were tested using a commercial indirect enzyme-linked immunosorbent assay (ELISA). The overall seroprevalence of IgG antibodies was 30.73%. There is high seroprevalence of T. gondii in cats and dogs in the metropolitan regions around the Panama Canal; however, differences between these species were not significant. Statistical analysis indicated that there are relevant variables, such as the age of animals, with a direct positive relationship with seroprevalence. None of the variables related to animal welfare (veterinary attention provided, type of dwelling, and access to green areas and drinking water) were associated with seropositivity.

Bulletin of animal health and production in Africa, Oct 11, 2005

Revista Complutense de Ciencias Veterinarias, Feb 3, 2017

Coxofemoral luxation is a relatively rare cause of lameness in horses, observed in foals and mini... more Coxofemoral luxation is a relatively rare cause of lameness in horses, observed in foals and miniature horses. As causes of luxation, severe trauma, ilium fractures, violent overextension and patellar fixation, have been described. A case of a Shetland pony is described, referred to the Complejo Hospitalario Veterinario de Corozal-Universidad de Panamá, which had a 4/5 lameness of the left hind limb and muscle atrophy of the biceps femoris and gluteus. It was decided to perform a simple digital radiography of the pelvis, and a coxofemoral joint luxation was observed. Once made the diagnosis, it was decided to perform surgical treatment, in terms of an ostectomy and excision of the femoral head. The prognosis is reserved in these lesions, but in our case, monitoring was carried out for 5 months, where less muscle atrophy was observed, but still remained 2/5 degree lameness.

Acta Veterinaria Brasilica, 2009

RESUMO-A ocorrência da Dirofilaria immitis no Brasil tem sido registrada nos vários Estados, com ... more RESUMO-A ocorrência da Dirofilaria immitis no Brasil tem sido registrada nos vários Estados, com índices de prevalência variados. As informações recentes sobre os vetores incriminaram Aedes scapularis e A. taeniorhynchus como primários e confirmada a participação de Culex quinquefasciatus como secundário na transmissão da D. immitis. A captura de A. aegypti em ambiente peridomiciliar durante um estudo entomológico levou-nos questionar sobre a competência vetorial desse inseto em transmitir o agente da dirofilariose. A avaliação revelou que grupos distintos dessa espécie possuem alta competência vetorial para D. immitis.

Parasitología al día, 1994

Archivos de Zootecnia, 2019

Objetivou-se discernir populações caprinas de cinco ilhas da República de Cabo Verde (n=533) por ... more Objetivou-se discernir populações caprinas de cinco ilhas da República de Cabo Verde (n=533) por meio de dados biométricos e análises estatísticas. Foram avaliadas 16 características de fêmeas adultas, através da estatística descritiva simples, análise de variância, teste de multicolinearidade, distância generalizada de Mahalanobis (D²) e algoritmo UPGMA (Unweighted Pair Group Method Arithmetic Mean). Após o teste de multicolinearidade foi identificada e descartada a variável profundidade torácica. As D² foram calculadas com base nas 15 medidas biométricas. O maior valor da D² foi entre as populações das ilhas do Fogo e São Nicolau (22,73), e a menor D² foi entre Santo Antão e São Vicente (3,71). O dendrograma a partir de 15 variáveis em cinco populações colocou as cabras da ilha de Fogo em ramo a parte das demais. Agruparam-se num ramo as cabras das ilhas de Santo Antão e São Vicente. Este resultado está de acordo com a distância geográfica entre as ilhas de Cabo Verde e o históric...

Revista Complutense de Ciencias Veterinarias, 2017

Digital palmar/plantar neurectomy is a surgical technique indicated in horses with pain or chroni... more Digital palmar/plantar neurectomy is a surgical technique indicated in horses with pain or chronic foot disease. However, there are potential complications after this procedure. A case of a 6 year old Quarter Horse and 480 kg is described, referred to the Complejo Hospitalario Veterinario de Corozal-Universidad de Panamá, which had a 4/5 lameness of the right forelimb. In the clinic history, a bilateral palmar digital neurectomy about 4 months ago was performedby the referring veterinarian because of chronic foot pain. A simple digital radiography and ultrasound of the pastern and fetlock areas were performed, and some findings related to rare complications of this surgical technique were diagnosed.

Revista Semilla del Este

El estudio evaluó el costo de la alimentación de la tilapia (Oreochromis niloticus) en estanques ... more El estudio evaluó el costo de la alimentación de la tilapia (Oreochromis niloticus) en estanques rústicos como una forma de contribuir al desarrollo de la acuicultura a pequeña escala en zonas rurales y periurbanas de la región. Los trabajos de investigación se llevaron a cabo en la Finca de la Universidad de Panamá. Las variables evaluadas fueron el crecimiento de los peces (longitud y peso), el consumo y el costo del alimento utilizado. Los resultados mostraron un incremento del 111.4% en la longitud total y del 311.2% en el peso de los animales, así como un consumo total de alimentos de 0.30g/g de peso del animal, lo que representó un costo aproximado de 0.42 balboas/kg, sólo considerando la alimentación. Esto sugiere que el cultivo de tilapia en estanques rústicos es una alternativa viable para la producción con bajos costos en la alimentación, lo que hace de ésta una buena opción para los productores de pequeñas granjas.

Viruses

The Costa Rican pygmy rice rat (Oligoryzomys costaricensis) is the primary reservoir of Choclo or... more The Costa Rican pygmy rice rat (Oligoryzomys costaricensis) is the primary reservoir of Choclo orthohantavirus (CHOV), the causal agent of hantavirus disease, pulmonary syndrome, and fever in humans in Panama. Since the emergence of CHOV in early 2000, we have systematically sampled and archived rodents from >150 sites across Panama to establish a baseline understanding of the host and virus, producing a permanent archive of holistic specimens that we are now probing in greater detail. We summarize these collections and explore preliminary habitat/virus associations to guide future wildlife surveillance and public health efforts related to CHOV and other zoonotic pathogens. Host sequences of the mitochondrial cytochrome b gene form a single monophyletic clade in Panama, despite wide distribution across Panama. Seropositive samples were concentrated in the central region of western Panama, consistent with the ecology of this agricultural commensal and the higher incidence of CHOV ...

Ciencias Veterinarias, 2018

El intercambio ecológico y la viabilidad de la biodiversidad de Costa Rica se ven amenazados por ... more El intercambio ecológico y la viabilidad de la biodiversidad de Costa Rica se ven amenazados por ladegradación y la fragmentación del bosque. Esta investigación pretende proponer una herramienta paraidentificar el posible impacto de las actividades pecuarias sobre áreas de conservación del Caribe. Para ello, serealizó la extracción de ADN de las heces de 14 jaguares (Panthera onca) y 13 pumas (Puma concolor) de vidalibre mediante el kit Fujifilm, Fuji. Estas fueron identificadas previamente por individuo y especie, mediantemétodos moleculares. Luego, se cuantificaron 16 genes de resistencias a los antimicrobianos (ARGs) (tetA,tetB, tetC, tetK, tetM, tetQ, tetS, tetW y tetY, catI, catII, sulI, sulII, qnrS, vanA y mecA) mediante qPCR. Lacaracterización de los sitios de muestreo se hizo mediante QGIS y ArGIS, al emplear datos geoespacialesde la región y el censo de SENASA 2014. De los 14 ARGs hallados, 9.3 % tenían una resistencia baja, 16 %intermedia y 13.9 % alta. Los genes tetQ (85....

Scientia

En este estudio, se evaluó el efecto de los inductores florales en la producción de granos y biom... more En este estudio, se evaluó el efecto de los inductores florales en la producción de granos y biomasa en Cajanus cajan. Usamos un modelo de bloques completamente aleatorizados con dos variedades (roja y negra) y las variables dependientes peso total (lbs) y altura de la planta (cm). Los resultados mostraron que el uso de inductor floral tuvo un efecto significativo en la producción de granos y biomasa. Sin embargo, es importante evaluar los efectos secundarios, el costo-beneficio y el impacto ambiental antes de implementar estos tratamientos a nivel comercial. Se necesitan más investigaciones para comprender mejor la influencia de los inductores florales en la producción de granos y biomasa en C. cajan.

Arquivos do Instituto Biológico, 2013

Aedes aegypti é uma espécie de ampla distribuição geográfica, e sua presença foi registrada nas i... more Aedes aegypti é uma espécie de ampla distribuição geográfica, e sua presença foi registrada nas ilhas de Cabo Verde. Pelo fato de a sua bioecologia estar sendo atualmente estudada em várias partes do mundo, e também por ter sido realizado o primeiro registro de uma epidemia de dengue no país, decidiu-se pela realização deste levantamento. O trabalho foi realizado entre fevereiro e março de 2010, quando foram inspecionadas seis das dez ilhas que compõem o arquipélago. Os fatores avaliados durante o levantamento foram número, tipo e localização dos recipientes, assim como a presença das formas larvais de Ae. aegypti. Os resultados demonstraram a presença de 2,4 recipientes/residência inspecionada, registrando-se um total de 118 criadouros, sendo estes mais frequentes nas residências abandonadas. A condição de risco foi significativamente diferente entre as ilhas, sendo superior para Boa Vista. Todas as ilhas avaliadas demonstraram tendência significativa à diminuição do número de cria...

Revista de Saúde Pública, 2003

The prevalence and clinical forms of Trypanosoma cruzi were evaluated among blood donor candidate... more The prevalence and clinical forms of Trypanosoma cruzi were evaluated among blood donor candidates attended at a general hospital in Rio de Janeiro, Brazil, from January 1997 to April 1999. The investigation was done by means of the indirect hemagglutination test and was confirmed via ELISA. Data were collected from clinical examinations, conventional electrocardiogram, chest radiography and echocar-diography. The results showed that despite Trypanosoma cruzi prevalence of 1.17% (128 patients), mainly in males aged 40 years or over, 70.8% of these patients, mainly males aged 19 to 39 years, demonstrated abnormalities that allowed the diagnosis of cardiopathy and/or esophagopathy. This once again corroborates the importance of Trypanosoma cruzi infection in urban centers.