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Biomedical subjects

M Wrzołek

Publications and source records attributed to M Wrzołek.

4 recordsLinked to original sources

The degenerative diseases or syndromes in maturing central nervous system.

The diagnosis of degenerative diseases or syndromes in the nervous system in based on their morphological picture. The changes occur in selected CNS structures or systems being induced in the course of more or less known processes sometimes with known, more often unknown etiology. Degenerative syndromes may be classified according to the topography of changes. They appear often with aging, but also in even greater number in infants. We tried to analyze the problem and find out to what degree the structure and topography of CNS degenerative changes in infants depend on maturity of nervous tissue constituting the background of pathologic process. The cases with two syndromes representative for small infants: progressive poliodystrophy of Alpers type and a degenerative syndrome with cerebral calcifications and disseminated demyelination were examined from this point of view. Our observations revealed that the stage of CNS development stipulates the type and topography of degenerative changes.

Age of Onset↗

Ultrastructure of the lung alveoli as revealed by freeze-etching technique.

The alveolar wall and the morphological equivalents of pulmonary surfactant have been studied by freeze-etching. Linear ridges on the fracture faces of the lamellae of lamellar bodies may represent early stages of transformation of lamellar bodies into tubular myelin. Parallel rows of particles on the fracture faces of tubular myelin are well documented, but the nature of these particles is not known.

Animals↗