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  • Dipalmitoylphosphatidylcholine vesicle  (1)
  • Immunschwäche  (1)
  • Isometric contraction  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 646 (1981), S. 320-328 
    ISSN: 0005-2736
    Keywords: Dipalmitoylphosphatidylcholine vesicle ; Ionophore X-537A ; Mn^2^+ transport ; ^1H-NMR
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Lymphangiom ; Eiweißverlust ; Immunschwäche ; Szintigraphie ; Key words Lymphangioma ; Protein-loss ; Immunodeficiency ; Scintigraphy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary We report the case of a seven months old girl, presenting with diarrhea refractory to therapy and stagnation of growth. The dehydrated infant developed edemas. It showed considerable diminution of humoral and cellular immunoresponse. Inspite of several vaccinations there was no response to a multiple-puncture skin test. Thus we suspected a combined immunodeficiency with protein-losing enteropathy, as massive substitution of protein was necessary. An enteral scintigraphy showed an enhancement in the right upper abdomen. During the following laparotomy a 15-cm-segment of the small bowel was resected, as it appeared to be transformed into a cystic lymphoma. Consequently all pathologic findings disappeared. Discussion: This case is of interest because an intestinal lymphangioma was mimicking a combined immunodeficiency, the indication for intervention was given by scintigraphy, and because excision of a short bowel segment restored normality.
    Notes: Zusammenfassung Wir berichten über ein 7 Monate altes Mädchen, das mit therapieresistenten Durchfällen und Wachstumsstillstand vorgestellt wurde. Das dehydrierte Kind entwickelte Ödeme und wies eine erhebliche Verminderung humoraler und zellulärer Abwehrfunktionen auf. Somit äußerten wir den Verdacht auf einen kombinierten Immundefekt mit enteralem Eiweißverlust, da das Kind massive Proteinsubstitutionen benötigte. Wir führten eine enterale Szintigraphie durch, die eine deutliche Mehranreicherung im rechten Oberbauch zeigte. Bei der anschließenden Laparotomie wurde ein 15 cm langer, durch ein Lymphangiom zystisch veränderter Dünndarmabschnitt entfernt. Danach normalisierten sich alle Befunde. Diskussion: Die Besonderheit dieses Falls liegt in der Simulation eines kombinierten Immundefekts durch ein intestinales Lymphangiom, das Stellen der Operationsindikation per Szintigraphie und die Heilung durch kurzstreckige Exzision.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of applied physiology 80 (1999), S. 379-385 
    ISSN: 1439-6327
    Keywords: Key words Electromechanical delay ; Premotor time ; Fatigue ; Isometric contraction ; Vastus medialis muscle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effects of muscle fatigue on the temporal neuromuscular control of the vastus medialis (VM) muscle were investigated in 19 young male subjects. The electromyogram (EMG) activities of VM and the force generation capacities of the quadriceps muscle were monitored before and after a fatigue protocol. In response to light signals, which were triggered randomly, the subjects made three maximal isometric knee extensions. This was then followed by the fatigue protocol which consisted of 30 isometric maximal voluntary contractions at a sequence of 5-s on and 5-s off. Immediately after the exercise to fatigue, the subjects performed another three maximal isometric contractions in response to the light signals. The effects of fatigue on the temporal neuromuscular control were then investigated by dividing the total reaction time (TRT) into premotor time (PMT) and electromechanical delay (EMD). The TRT was defined as the time interval between the light signal and the onset of the knee extension force. The PMT was defined as the time from the light signal to the onset of EMG activities of VM, and EMD as the time interval between onset of EMG activities to that of force generation. Following the contractions to fatigue there was a significant decrease in peak force (F peak, P = 0.016), an increase in the root mean square (rms)-EMG: F peak quotient (P = 0.001) but an insignificant change in the median frequency (P = 0.062) and rms-EMG (P = 0.119). Significant lengthening of mean EMD was found after the fatigue protocol [0.0396 (SD 0.009) vs 0.0518 (SD 0.016) s P 〈 0.001]. The lengthening of EMD in VM would affect the stabilizing effect of the patella during knee extension. The faster mean PMT [0.2445 (SD 0.093) vs 0.2075 (SD 0.074) s, P = 0.042] following the fatigue protocol might have compensated for the lengthened EMD and contributed to the insignificant change in the mean TRT [0.284 (SD 0.09) vs 0.259 (SD 0.073) s, P = 0.164]. This was probably related to the low level of fatigue (15% decrease in force) and the stereotyped nature of the action such that the effects of the fatigue on neuromuscular control were likely to have been attributable to peripheral processes.
    Type of Medium: Electronic Resource
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