ABSTRACT
Resumen Introducción. Esta investigación se enfoca en estudiar la inclusión del propilenglicol (PG) como compuesto energético y su posible efecto en la disminución del balance energético negativo. Objetivo. Evaluar parámetros reproductivos, específicamente tasa de parto al primer servicio, días abiertos, primer calor observado, así como su efecto en la secreción de insulina y actividad ovárica. Materiales y métodos. Veinte (20) vacas Holstein fueron asignadas a uno de cuatro niveles de suplementación: 0, 300, 500 y 700 g de PG / día mezclados en el concentado, desde el día10 antes del parto el día 20 posparto. Se tomaron muestras de sangre los días 10 y 5 antes del parto, el día del parto y los días 5, 10, 15 y 20 posparto para determinar la concentración de insulina, y se realizaron exámenes ultrasonográficos para determinar actividad ovárica. Todos los datos para la evaluación de los parámetros reproductivos fueron tomados diariamente observando los animales 30 minutos en la mañana y 30 minutos en la tarde, y prestando atención en la presentación de calores. Resultados. No se observaron diferencias significativas para las variables estudiadas con los diferentes tratamientos (p>0,05). El análisis de constrastes octogonales mostró una tendencia en la disminución de los días abiertos cuando se incluyó una dosis de 500 g de propilenglicol. Conclusión. La inclusión de propilenglicol no tuvo efecto significativo sobre la secreción de insulina, ni sobre el número y tamaño de los folículos preovulatorios (p>0,05). Es muy probable que el modo de suministro de propilenglicol y el tiempo de colecta de las muestras de sangre influyeran en la identificación del pico de secresión de insulina.
Abstract Introduction. This paper mainly focuses on the study of the inclusion of propylene glycol (PG) as energy compound and its possible effect on minimizing the negative energy balance. Objective. Evaluate on reproductive parameters, specifically on rates of calving to first service, days open, calving to first observed heat, as well as its effect on insulin secretion and ovarian activity. Materials and Methods. 20 Holstein cows were assigned to one of four supplementation levels: 0, 300, 500 and 700 grams of PG / day mixed in food, from day10 prepartum and through day 20 postpartum. Blood samples were collected on10 and 5 prepartum and days 0, 5, 10, 15 and 20 postpartum to determine the concentration of insulin were also done to determine transrectal ultrasound follicular growth and ovarian resumption. All data for the evaluation of reproductive parameters were taken from the day of delivery, making daily observations of animals 30 minutes in the morning and 30 minutes in the afternoon to record possible heat presented. Results. There were no significant differences for the variables within the different treatments (p> 0.05), only a trend to decrease the open days when you include a dose of 500 g of propylene glycol with respect to the other groups. Conclusions. The inclusion of propylene glycol had no significant effect on insulin secretion, or the number and size of preovulatory follicles (p> 0.05). It is very likely that the propylene supply mode and time of collection of blood samples affect the identification of the increase in insulin secretion.
Resumo Introdução. Esta pesquisa centra-se no estudo da inclusão de propileno glicol (PG) como um composto energético e seu possível efeito na redução do balanço energético negativo. Objetivo. Avalie os parâmetros reprodutivos, especificamente a taxa de parto no primeiro serviço, dias abertos, primeiro calor observado, bem como seu efeito na secreção de insulina e na atividade ovariana. Materiais e métodos. 20 vacas Holstein foram atribuídas a um dos quatro níveis de suplementação: 0, 300, 500 e 700 g PG / dia misturados no concentrado, a partir do dia 10 antes da entrega no dia 20 pós-parto. As amostras de sangue foram tomadas nos dias 10 e 5 antes do parto, no dia da entrega e nos dias 5, 10, 15 e 20 pós-parto para determinar a concentração de insulina e os exames de ultra-som foram realizados para determinar a atividade do ovário. Todos os dados para a avaliação dos parâmetros reprodutivos foram tomados diariamente observando os animais 30 minutos pela manhã e 30 minutos à tarde prestando atenção na apresentação de cicatrizes. Resultados. Não foram observadas diferenças significativas nas variáveis estudadas com os diferentes tratamentos (p> 0,05). A análise de construções octogonais mostrou tendência na diminuição dos dias abertos quando foi incluída uma dose de 500 gr de propileno glicol. Conclusão. A inclusão de propileno glicol não teve efeito significativo na secreção de insulina, nem no número e tamanho dos folículos pré-ovulatórios (p> 0,05). É muito provável que o modo de entrega de propileno glicol e o tempo de coleta das amostras de sangue influenciem a identificação da secreção máxima de insulina.
ABSTRACT
Objective To study and analyze the CT and MRI findings of hepatic eosinophilic infiltration. Methods Twenty nine patients of hepatic eosinophilic infiltration who were confirmed by biopsy or clinical diagnosis were retrospectively analyzed. All the patients underwent CT and/or MRI scan. Twenty seven cases underwent upper abdominal CT plain scan and three phase enhanced scan, and 5 cases underwent upper abdominal MR plain scan and three phase enhanced scan, of which 3 cases underwent CT and MRI scan. Evaluations were made regarding to the numbers of lesion, distribution, size, shape, margin, density or signal characteristic, enhancement parttern and other special features. Pearson correlation analysis was used to analyze the correlation between the number of hepatic lesions and the number of eosinophils in peripheral blood. Results A total of 108 lesions of eosinophilic hepatic infiltration were observed in 29 cases, including 2 cases with single lesion and 27 cases with multiple lesions. Ninety five of the lesions were located in subcapsular parenchyma or surrounding the portal vein. Most subcapsular lesions were wedge-shaped(n=28). Lesions surrounding portal vein were round-shaped(n=32), while the hepatic parenchymal lesions were irregular or round-shaped(n=13). The mean size of lesion was 34 mm, ranging from 3 to 61 mm. The margin of all the lesions were obscure. The lesions showed slightly low density or isodensity on CT pre-contrast images. On MR pre-contrast images, lesions showed slightly low signal or isointense on T1WI, and hyperintense on T2WI. Branches of portal vein were found infilrated by all lesions. Tueleve cases showed“stripe sign”along the portal vein branches, 16 cases showed“halo ring sign”around the portal vein. Pearson analysis indicated a significant correlation between the number of eosinophilic hepatic infiltrated lesions and the increase of eosinophils in peripheral blood (r=0.783, P<0.05). Conclusion The imaging features of EHI had certain characteristics, especially in the three phase dynamic enhanced scanning, from which we can mainly find“progressive enhancement”,“portal vein sign”,“stripe sign”and“halo ring sign”.
ABSTRACT
Hairy cell leukemia (HCL) is a chronic B- cell disorder characterized by the presence of typical hairy cells in the peripheral blood and marrow, pancytopenia, and a variable degree of splenomegaly. Identification of typical hairy cells in the peripheral blood and demonstration of tartrate-resistant acid phosphatase (TRAP) are critical findings in HCL. Hepatic involvement of HCL is a common feature and liver biopsy show diffuse mono-nuclear cell infiltration throughout the hepatic sinusoids and in the portal areas. We report a case of hairy cell leukemia in a 52-year-old man who presented with pneumonia and hepatic infiltration with review of the literatures.