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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 221 (1979), S. 137-149 
    ISSN: 1432-1459
    Keywords: Mucolipidosis ; β-galactosidase deficiency ; Sialidase deficiency ; Vacuole ; Sialoglycoprotein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Ein Fall der Mukolipidose im Erwachsenenalter mit β-Galaktosidase-und Sialidasemangel wurde bemerkt. Die Patientin, ein zwanzigjähriges Fräulein, wies Intelligenzmangel, Kornealtrübung, Gargoylismus, zerebellare Ataxie, Myoklonus und Konvulsion auf, die im Alter von 14 Jahren auftraten. Die skeletale Deformität und die Vakuolenbildung in peripheren Lymphocyten und in förmigen Zellen im Knochenmark waren auch bemerkbar. Bei Probeuntersuchungen des N.suralis und Appendix vermiformis wurden viele Vakuolen in fast allen Zellen gefunden, aber das gespeicherte Material in diesen Vakuolen konnte durch enzymhistochemische und ultrastrukturelle Untersuchungen nicht charakterisiert werden. Die Mängel der β-Galaktosidase und der Sialidase in Leukozyten wurden bemerkt. Es gab vermehrtes Sialylglykopeptid im Harn und Sialylsäure und Hexosamin im Glykoprotein der Lymphozyten. Leukozytensialidase der Eltern wurde in 30–50% der normalen Menge gefunden. Dieses Resultat ergibt, daß unser Fall einen genetischen Defekt der Sialidase aufweist.
    Notes: Summary A case of adult type mucolipidosis with β-galactosidase and sialidase deficiency is described. This patient, a woman aged 20, had mental retardation, macular cherry-red spots, corneal clouding, gargoyle-like face, cerebellar ataxia, myoclonus and convulsions beginning at the age of 14. Bony deformities, vacuoles in the peripheral lymphocyte and foamy cells in the bone marrow were also noted. Biopsy study of the sural nerve and vermiform appendix disclosed many vacuoles in almost every kind of cells, although the accumulated substance in these vacuoles could not be characterized histochemically or ultrastructurally. Deficient leukocyte β-galactosidase and sialidase were confirmed. There was increased urinary sialoglycopeptide and increased siliac acid and hexosamine in the glycoprotein of lymphocytes. Leukocytes sialidase activities of the parents were 30 to 50% of the control values. These results suggest a genetic defect of sialidase.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 38 (2000), S. 569-574 
    ISSN: 1741-0444
    Keywords: Photoplethysmogram ; Pulse arrival time ; Systolic blood pressure ; Noninvasive measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A continuous noninvasive method of systolic blood pressure estimation is described. Systolic blood pressure is estimated by combining two separately obtained components: a higher frequency component obtained by extracting a specific frequency band of pulse arrival time and a lower frequency component obtained from the intermittently acquired systolic blood pressure measurements with an auscultatory or oscillometric system. The pulse arrival time was determined by the time interval from QRS apex in electrocardiogram to the onset of photoplethysmogram in a fingertip beat-by-beat via an oximetric sensor. The method was examined in 20 patients during cardiovascular surgery. The estimated values of systolic blood pressure were compared with those measured invasively using a radial arterial catheter. The results showed that the correlation coefficients between estimated values and invasively obtained systolic blood pressure reached 0.97±0.02 (mean±SD), and the error remained within ±10% in 97.8% of the monitoring period. By using a system with automatic cuff inflation and deflation to acquire intermittent systolic blood pressure values, this method can be applicable for the continuous noninvasive monitoring of systolic blood pressure.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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