PubMed Health⌕ Search

Biomedical subjects

C Masters

Publications and source records attributed to C Masters.

85 records · Page 5Linked to original sources
PubMed1980

Descriptive epidemiology of Creutzfeldt-Jakob disease in Chile.

Descriptive epidemiological data are presented from a survey of 35 cases of Creutzfeldt-Jakob disease (CJD) that occurred in Chile in the period 1955 to 1977. The average mortality in Chile (0.31 deaths per 1 million) and in urban Santiago (0.73 deaths per 1 million) is compared with data reported from other countries. An increasing incidence in recent years is probably related to a greater awareness of the disease. The familial occurrence of CJD in nine patients from five affected families is described, and its analysis suggests a genetically determined susceptibility with incubation periods of more than 30 years. Horizontal transmission of the disease may have occurred in one patient in whom the disease developed 13 years after the patient married into a family with seven other affected members.

Adult↗
PubMed1977

Pathogenesis of reovirus type 1 hydrocephalus in mice. Significance of aqueductal changes.

The pathogenesis of hydrocephalus following reovirus type 1 inoculation of neonatal mice has been examined by light microscopy, radiology, immunofluorescence, and electron microscopy. The reovirus infection causes an acute ependymitis and leptomeningitis, followed by a fibrous arachnoiditis and arachnoid villitis. Hydrocephalus develops in proportion to the degree of inflammatory/fibrotic changes within the cerebrospinal fluid pathways. With the beginning of hydrocephalus there is radiographic evidence of basal cistern blockage. As the hydrocephalic state progresses, axial herniation and compression of the midbrain result in the appearance of aqueduct stenosis. We demonstrate that the stenosis of the aqueduct is a secondary phenomenon, not causally related to the pathogenesis of hydrocephalus, and discuss the significance of this finding to human aqueduct stenosis.

Animals↗
PubMed1976

Posterior fossa, aqueduct and fourth ventricle of the living mouse studied by positive contrast and plain radiography.

Radiographic techniques have been applied to the measure the size, volume and relationships of the posterior fossa, aqueduct and fourth ventricle in two strains of laboratory mice. Significant differences in the size of posterior fossae between strains were observed. Using ventriculography in the living mouse, the outflow tract of the fourth ventricle was demonstrated, together with a communication that exists between the third ventricle and the subarachnoid space.

Animals↗
PubMedDate not supplied

On the developmental properties and tissue interactions of hexokinase.

The interactions of the isozymes of hexokinase with cellular structure have been studied in the major tissues of the mouse during development. Overall, these data provide a clear indication that interactions between hexokinase and cellular structure are appreciable in all major tissues and at all stages of development, and an analysis of the isozyme status of the enzyme in both soluble and bound compartments has been effected. Further evidence in support of the already well documented interaction of hexokinase I to subcellular material in adult brain and kidney tissues is provided and extended to show that such interactions are extensive in both these tissues throughout development. In addition, evidence is provided that considerable hexokinase II activity is present in mouse foetal tissues in both the soluble and bound fractions and this isozyme is also shown to be the predominant "bound" form of the enzyme in adult skeletal muscle. By contrast, hexokinase III and IV are shown to be largely located in the cytosolic fraction of liver. The metabolic implications of these enzyme-structural interactions during development are discussed, as is the possibility of a functional linkage between hexokinase, which is bound to the mitochondria, and other enzymic components of the glycolytic sequence.

Animals↗