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1.
Ciênc. rural (Online) ; 48(10): e20180596, 2018. graf
Article in English | LILACS | ID: biblio-1044995

ABSTRACT

ABSTRACT: The aim of this study was to evaluate the morphology of endothelial cells from different areas of the cornea of dogs. Twenty healthy eyes from 10 dogs, females or males, of different ages were studied. Corneal endothelium morphology of superior, inferior, central, nasal and temporal areas was assessed by 0.2% alizarin red staining using an optic microscope. One hundred endothelial cells from each corneal area were analyzed. In all areas of the cornea studied were found endothelial cells with four sides, five sides, six sides and seven sides. There was no significant difference regarding endothelial cell morphology in all corneal regions evaluated. Thus, the morphology of the central cornea area represents the entire endothelial mosaic and may be applied to peripheral areas. Therefore, analysis of the central area is sufficient to estimate the shape of endothelial cells of peripheral areas of healthy dog corneas.


RESUMO: Objetivou-se avaliar a morfologia das células endoteliais de diferentes regiões da córnea de cães. Vinte olhos saudáveis de 10 cães, fêmeas ou machos, de diferentes idades foram estudados. A morfologia do endotélio corneano das regiões superior, inferior, central, nasal e temporal foi avaliada pela coloração vermelho de alizarina 0,2% com microscópio óptico. Foram analisadas 100 células endoteliais de cada região da córnea. Em todas as regiões da córnea estudadas foram encontradas células endoteliais com quatro lados, cinco lados, seis lados e sete lados. Não houve diferença significativa em relação à morfologia de células endoteliais da córnea em todos as regiões estudadas. Assim, a morfologia da região central da córnea representa todo o mosaico endotelial e pode ser aplicada em áreas periféricas. Portanto, a análise da área central é suficiente para estimar a forma das células endoteliais das áreas periféricas de córneas de cães saudáveis.

2.
Ciênc. rural ; 46(12): 2223-2228, Dec. 2016. graf
Article in English | LILACS | ID: lil-797915

ABSTRACT

ABSTRACT: The objective of this study was to evaluate the morphology of different regions of the equine cornea using optical microscopy. Both healthy eyes of eight horses, male or female, of different ages were evaluated. Corneas were stained with alizarin red vital dye and subsequently examined and photographed using optical microscopy. Corneal endothelial morphology of central, superior, inferior, temporal and nasal areas was assessed. One hundred endothelial cells from each corneal area were analyzed. The shape of the corneal endothelial cells of each corneal region was analyzed. Statistical data analysis was conducted using the Student's t test. Values of P<0.01 were considered significant. Regarding morphological analysis, no statistically significant differences were reported between the equine corneal regions analyzed. The present research suggested that there are no morphological differences between regions of the equine cornea. The values obtained in any region of the equine cornea can be extrapolated to other regions of the cornea and are representative of the cell morphology present in all regions of the cornea.


RESUMO: O objetivo deste estudo foi o de avaliar a morfologia das diferentes regiões da córnea equina usando microscopia óptica. Foram avaliados ambos os olhos saudáveis ​​de oito equinos, machos ou fêmeas, de diferentes idades. As córneas foram coradas com corante vital vermelho de alizarina, examinadas com microscópio óptico e fotografadas. A morfologia endotélio corneano de áreas centrais, superior, inferior, temporal e nasal foi avaliada. Foram analisadas ​​células endoteliais da córnea de cada área. A forma das células endoteliais da córnea de cada região da córnea foi analisada. Análise estatística dos dados foi realizada por meio do teste t. Valores de P<0.01 foram considerados significativos. Em relação à análise morfológica estatisticamente significativa, não foram encontradas diferenças entre as regiões da córnea equina analisadas. O presente trabalho sugere que não houve diferença entre a morfologia das regiões da córnea de equino. Os valores obtidos em qualquer região da córnea equina podem ser extrapolados para outras regiões da córnea e são representativos da morfologia celular em todas as regiões da córnea.

3.
Medisan ; 19(4)abr.-abr. 2015. tab
Article in Spanish | LILACS, CUMED | ID: lil-745145

ABSTRACT

Se realizó un estudio descriptivo y transversal de 25 pacientes, adictos al tabaco, con carcinoma in situ en la mucosa bucal, atendidos en la consulta estomatológica del Policlínico de Especialidades perteneciente al Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora Torres" de Santiago de Cuba, desde abril del 2008 hasta igual periodo del 2013, a fin de evaluar los resultados del diagnóstico clínico e histopatológico de esta neoplasia. Mediante la técnica clásica de inclusión en parafina se confirmó la existencia de cambios celulares. En la casuística prevalecieron el sexo masculino y la ausencia de síntomas subjetivos en la forma leucoplásica. El sitio anatómico más susceptible correspondió al borde lateral de la lengua. Entre las alteraciones hísticas más comunes figuraron: hipercromatismo nuclear, membrana basal intacta, pérdida de la polaridad, así como pleomorfismo nuclear y celular...


A descriptive and cross-sectional study of 25 patients, with tobacco addition and carcinoma in situ of the oral mucous, assisted in the stomatological department of the Specialties Polyclinic belonging to "Saturnino Lora Torres" Teaching Provincial Clinical Surgical Hospital in Santiago de Cuba was carried out from April, 2008 to same period of the 2013, in order to evaluate the results of the clinical, histological and pathological diagnosis of this neoplasia. By means of the classic technique of inclusion in paraffin the existence of cellular changes was confirmed. The male sex and the absence of subjective symptoms prevailed in the leucoplasic form in the case material. The most susceptible anatomical site corresponded to the lateral border of the tongue. Among the most common tissue alterations there were: nuclear hyperchromatism, intact basal membrane, loss of the polarity, as well as nuclear and cellular pleomorphism...


Subject(s)
Carcinoma in Situ/diagnosis , Mouth Mucosa , Basement Membrane , Secondary Care
4.
Rev. cuba. oftalmol ; 26(2): 198-207, mayo.-ago. 2013.
Article in Spanish | LILACS | ID: lil-695030

ABSTRACT

Objetivo: identificar el riesgo de edema relacionado con los parámetros morfofuncionales del endotelio corneal en pacientes con indicación de cirugía de catarata. Métodos: se realizó un estudio descriptivo, transversal en 200 ojos de pacientes en la consulta preoperatoria de cirugía de catarata. Las variables estudiadas fueron edad, sexo, riesgo de edema, pleomorfismo y polimegatismo para lo cual se examinó a cada uno de ellos con microscopia especular. Además se examinaron en lámpara de hendidura en busca de la presencia de guttas corneales. Resultados: se obtuvo una edad media de 70,7 años y existió un predominio de las mujeres (67,7 por ciento) frente a los hombres (32,3 por ciento). No hubo riesgo de edema en un 80,5 por ciento y sí lo hubo en 39 ojos para un 19,5 por ciento. Se relacionó el polimegatismo y la edad estando presente en 176 ojos para un 88,0 por ciento y con un predominio del estadio leve en todos los grupos de edades con un 80,5 por ciento. El pleomorfismo estuvo presente en 186 ojos (93 por ciento) y de ellos 103 (51,5 por ciento) se encontraron en el estadio leve y 78 (39,0 por ciento) en el moderado. Conclusiones: la disminución de la densidad celular no es el único parámetro que indica que un endotelio es de riesgo para una cirugía de catarata, otros como el polimegatismo, el pleomorfismo, así como la presencia de guttas; también son de importancia


Objective: to identify the risk of edema associated with the morphological and functional parameters of the corneal endothelium in those patients with indication of cataract surgery. Methods: a cross-sectional and descriptive study was performed in 200 eyes from the patients attending the preoperative cataract surgery service. The studied variables were age, sex, risk of edema, pleomorphism and polymegatism. Each patient was examined with the specular microscopy and also a slit-lamp examination was made to look for cornea guttata. Results: the average age of the group was 70.7 years, with females predominating (67.7 percent) over males (32.3 percent). There was no risk of edema in 80.5 percent of cases whereas the risk was present in 19.5 percent (39 eyes). Polymegatism and age were associated, being this problem present in 176 eyes for 88 percent of the total number and predominant in its mild staging in all the age groups for 80.5 percent. Pleomorphism affected 186 eyes (93 percent) and 103 of them (51.5 percent) was at the mild staging and 78 (39 percent) at the moderate staging. Conclusions: reduction in the cell density is not the only parameter indicative of a risky endothelium for a cataract surgery, since others such as polymegatism, pleomorphism and presence of cornea guttata are also important


Subject(s)
Humans , Male , Adult , Female , Middle Aged , Cataract Extraction , Corneal Edema/diagnosis , Endothelium, Corneal/physiology , Preoperative Period , Risk Factors , Cross-Sectional Studies , Epidemiology, Descriptive
5.
Rev. bras. ciênc. vet ; 14(3): 163-166, set.-dez. 2007. ilus, tab
Article in Portuguese | LILACS | ID: lil-523699

ABSTRACT

Com o objetivo de avaliar as diferenças morfométricas dos oocistos esporulados de Cystoisospora felis oriundos de diferentesfontes de infecção: natural em gatos peri-domiciliados, experimental induzida por oocistos esporulados e experimental induzidapor hipnozoítas em vísceras de camundongos pré-inoculados por via oral com 106 oocistos esporulados de C. felis, foramutilizados 40 gatos, sendo 28 oriundos de áreas peridomiciliares do município de Seropédica, estado do Rio de Janeiro, dosquais foram obtidos oocistos de C. felis por infecção natural e 12 livres de coccídios, nascidos em laboratório. Estes últimosforam divididos em dois grupos com seis animais cada, que receberam por via oral inóculo contendo 106 oocistos esporuladose vísceras de camundongos inoculados previamente com C. felis, respectivamente. Os oocistos provenientes das três fontesde infecção foram diferentes entre si quando se consideraram os diâmetros polar e equatorial. No entanto, em relação aoíndice morfométrico, não houve variação. Os oocistos provenientes de infecção por vísceras foram pouco homogêneos emrelação aos oocistos oriundos de infecção experimental com oocistos esporulados e de infecção natural.


The present work aimed at to evaluate morphological differences that can be observed on Cystoisospora felis oocysts fromnatural, oocyst-borne experimental infection and mice viscera-borne experimental infection. For this reason, forty cats wereused in this experiment. Twenty-eight cats were taken in the municipality of Seropédica, State of Rio de Janeiro, which werecorresponded to natural infection and twelve coccidia-free kittens which were borne inside laboratory facilities. These coccidia-free cats were divided into two groups with six animals each: the first group was inoculated with 106 sporulated oocysts and thesecond one with mice visceras previously inoculated with 106 sporulated oocysts. Oocysts shed by these kittens submitted tothree sources of infection were different from each other, when were considered the length and width, although there was notvariation on the shape index of them. Oocysts proceeding from kittens fed on mice visceras showed lower homogeneity incomparison to oocysts that came from oocyst-to-oocyst experimental and natural infections.


Subject(s)
Animals , Male , Female , Cats , Parasitic Diseases/transmission , Cat Diseases/parasitology , Infections/transmission , Infections/veterinary , Oocysts/parasitology
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