Asunto(s)
Herpes Genital/complicaciones , Enfermedades de la Retina/etiología , Vasos Retinianos , Vasculitis/etiología , Aciclovir/uso terapéutico , Adulto , Anticuerpos Antivirales/análisis , Antivirales/uso terapéutico , Humor Acuoso/virología , ADN Viral/análisis , Quimioterapia Combinada , Angiografía con Fluoresceína , Fondo de Ojo , Glucocorticoides/uso terapéutico , Herpes Genital/tratamiento farmacológico , Herpes Genital/virología , Herpesvirus Humano 2/genética , Herpesvirus Humano 2/inmunología , Herpesvirus Humano 2/aislamiento & purificación , Humanos , Masculino , Reacción en Cadena de la Polimerasa , Enfermedades de la Retina/diagnóstico , Enfermedades de la Retina/tratamiento farmacológico , Vasos Retinianos/patología , Vasculitis/diagnóstico , Vasculitis/tratamiento farmacológico , Agudeza VisualRESUMEN
The concentration of chromium and caesium in totally opaque (mature) cataractous lenses has been determined by instrumental neutron activation analysis and gamma spectrometry. The presence of these trace-elements in the human lens has to our knowledge not been investigated so far. Both elements under study are of known biological importance. Chromium is an essential trace-element necessary for the maintenance of normal glucose metabolism. Moreover it is considered to rank among those elements, the increased level of which contributes to environmental pollution. Caesium is a biologically important trace-element due to its relationship with potassium, as has been demonstrated in a variety of biochemical and physiological processes. The concentration of these elements was determined in cataractous lenses from fifty-one patients with senile cataract and has been correlated with age and sex.
Asunto(s)
Catarata/metabolismo , Cesio/análisis , Cromo/análisis , Cristalino/análisis , Factores de Edad , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis de Activación de Neutrones , Factores Sexuales , Espectrometría gamma , Oligoelementos/análisisRESUMEN
For the detection and determination of the trace elements Ag and Sc in mature human cataractous lenses, the methods of neutron activation analysis was used. As regards Ag, attempts made in the past to establish its presence in the cataractous lens had failed, while Sc has not so far been thoroughly investigated. Our study of the two elements was also correlated to the age and sex of the patients with senile cataract. It was found that once senile cataract has fully matured, the determined trace-element concentrations no longer appear to be related to age and/or sex of the patients.
Asunto(s)
Catarata/fisiopatología , Cristalino/análisis , Escandio/análisis , Plata/análisis , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis de Activación de Neutrones/instrumentación , Análisis de Activación de Neutrones/métodosRESUMEN
The clinical course is described of two genuine cases of the disease of Leber's miliary aneurysms that developed into Coats' disease. Following the issue of the disease in a painful and blind eye, the cases were examined histopathologically. In the first case the transformation into Coats' disease, and subsequently into a painful eye, took six years, in the second case four years. This histopathological examination revealed vascular formations of the superficial corneal stroma of the periphery in the second case. In respect of the retina the presence of neovascularization was observed. Pathological vessels of varying width were also found in the deeper retinal layers. The presence of cholesterol clefts should be regarded rather as a consequence of the chronicity of the case than as being a characteristic feature of the condition.