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  • 1
    Electronic Resource
    Electronic Resource
    Pathological study on a severe sialidosis (α-neuraminidase deficiency) (1986)
    Springer
    Acta neuropathologica 71 (1986), S. 278-284 
    Details
    ISSN: 1432-0533
    Keywords: Severe sialidosis ; α-Neuraminidase deficiency ; Neuropathology ; Congenital ascites ; Nephrosialidosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 56-day-old infant with α-neuraminidase deficiency, whose clinical features included severe edema of extremities and ascites which resembled those in severe infantile sialidosis, was autopsied. Perforation, whose pathogenesis was unclear, was found on the descending portion of the duodenum. Light and electron microscope studies showed that neurons in the cerebral and cerebellar corticies, and the thoracic spinal cord contained membrane-bound vacuoles but no membranous cytoplasmic bodies. Zebra bodies were found only in the neurons of the spinal cord. The neurons in the paraganglion and in the Auerbach's myenteric plexus were also distended with numerous membrane-bound vacuoles. Hepatocytes, endothelial cells and Kupffer cells in the liver and glomerular and tubular epithelial cells in the kidney were swollen with a number of vacuoles although the patient showed none of the clinical features of renal involvement. These pathological changes were similar to those in nephrosialidosis reported by Le Sec et al. [Arch Fr Pediatr 35:819–829 (1978)].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688050
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  • 2
    Electronic Resource
    Electronic Resource
    A severe infantile sialidosis (β-galactosidase-α-neuraminidase deficiency) mimicking GM1-gangliosidosis type 1 (1983)
    Springer
    European journal of pediatrics 140 (1983), S. 295-298 
    Details
    ISSN: 1432-1076
    Keywords: β-Galactosidase ; α-Neuraminidase ; Sialidosis ; Nephrosialidosis ; GM1-Gangliosidosis type 1
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We observed a 3-month-old Japanese female infant with severe psychomotor retaration, coarse facial appearance, hepatosplenomegaly, and dysostosis multiplex. Only β-galactosidase was found to be deficient when the routine lysosomal hydrolase assay was performed on the patient's lymphocytes at 6 months of age. At first GM1-gangliosidosis type 1 seemed the most likely diagnosis. Later, however, additional studies (hydrolase assay in cultured skin fibroblasts, urinary oligosaccharide analysis, genetic complementation study, etc.) revealed that biochemical data of this case were in agreement with those of severe infantile sialidosis. The only important exception was that α-neuraminidase in the patient's lymphocytes showed normal activity but abnormal pH dependence toward 4-methylumbellyferyl substrate. In addition, a severely damaged kidney suggested that his case may be classified as a unique type of severe infantile sialidosis (possible nephrosialidosis). These observations stress the importance of careful biochemical diagnosis of a case with GM1-gangliosidosis type 1 phenotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00442667
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ultrastructural and immunohistochemical studies on non-ciliated cells of the tracheal epithelium of normal, phenobarbital-treated, and 3-methylcholanthrene-treated mice (1985)
    Springer
    Cell & tissue research 240 (1985), S. 501-504 
    Details
    ISSN: 1432-0878
    Keywords: Non-ciliated tracheal cell ; Smooth endoplasmic reticulum ; Ultrastructure ; Cytochrome P-450 ; Immunohistochemistry ; Mouse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Non-ciliated SER-rich cells of the tracheal epithelium of normal, phenobarbital-treated and 3-methylcholanthrene-treated mice were studied ultrastructurally and immunohistochemically. The apical portion of these cells protrudes into the tracheal lumen, especially in the mice treated with the two compounds, and the apical cytoplasm is filled with numerous tubular elements of SER. Besides, the non-ciliated cells of 3-methylcholanthrene-treated mice show a strong positive reaction to the antiserum against microsomal cytochrome P-450 of liver. These findings support the concept that the non-ciliated tracheal cell may be involved in the metabolism of endogeneous and exogeneous chemical compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222368
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  • 4
    Electronic Resource
    Electronic Resource
    Ultrastructural and immunohistochemical studies on steroid-secreting cells of the testis and ovary of normal and 3-methylcholanthrene-treated mice (1986)
    Springer
    Cell & tissue research 245 (1986), S. 681-683 
    Details
    ISSN: 1432-0878
    Keywords: Smooth endoplasmic reticulum ; Cytochrome P-450 ; Testis ; Ovary ; Immunohistochemistry ; Mouse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The testis and ovary of normal and 3-methylcholanthrene-treated mice were studied ultrastructurally and immunohistochemically in order to learn whether steroid-secreting cells of the gonads are involved in drug metabolism. The steroid-secreting cells, i.e., Leydig cells of the testis, and theca interna cells, interstitial gland cells, and corpus luteum cells of the ovary of 3-methylcholanthrene-treated mice, show a strong positive reaction to the antiserum against, hepatic microsomal cytochrome P-450, of liver which is the terminal oxidase of the drug-metabolizing enzyme complex. In addition, it was found that elements of smooth endoplasmic reticulum (SER) in drug-treated mice become well developed as compared with those in control animals. These findings indicate that the steroid secreting cells in testis as well as ovary are involved in the metabolism of both endogenous and exogenous chemical compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00218572
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    Paper (German National Licenses)
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