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  • Digitale Medien  (4)
  • Endogenous digitalis-like factor  (2)
  • scanning electron microscope (SEM)  (2)
  • 1
    Digitale Medien
    Digitale Medien
    Dissociation of digoxin-like immunoreactivity and Na+,K+-ATPase inhibitory activity in rat plasma (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 992-993 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Endogenous digitalis-like factor ; digoxin-like immunoreactivity ; Na+,K+-ATPase inhibitor
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary We measured endogenous digitalis-like factor (EDF) in rat plasma during acute saline infusion by two different procedures. Na+,K+-ATPase inhibitory activity in the rat plasma significantly increased during saline loading (7.8±2.2 vs 2.5±0.9%, with and without acute saline loading, respectively, p〈0.05). On the other hand, the plasma digoxin-like immunoreactivity significantly decreased during acute saline loading (16.9±1.6 vs 32.0±2.8 pg digoxin equivalents/ml. with and without acute saline loading, respectively, p〈0.01). These results indicate that the major substances detected by digoxin-like immunoreactivity and direct Na+,K+-ATPase inhibitory activity are completely different, at least in rat plasma.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01939897
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  • 2
    Digitale Medien
    Digitale Medien
    Further evidence for the dissociation of digoxin-like immunoreactivity from Na+, K+-ATPase inhibitory activity (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 1041-1043 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Endogenous digitalis-like factor ; digoxin-like immunoreactivity ; Na+, K+-ATPase inhibitor ; adrenalectomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The effects of adrenalectomy or nephrectomy, carried out one hour previously, on the levels of endogenous digitalis-like factors were determined in rat plasma. Factors were assayed by digoxin-like immunoreactivity and direct Na+, K+-ATPase inhibitory activity. Digoxin-like immunoreactivity significantly decreased one hour after bilateral ablation of adrenals, while Na+, K+-ATPase inhibitory activity remained unaltered. There were no changes in either activity one hour after bilateral nephrectomy. These results suggest that digoxin-like immunoreactivity may be derived from the adrenal gland or under adrenal control and the major substances detected by digoxin-like immunoreactivity and direct Na+, K+-ATPase inhibitory activity may be different.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01940667
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  • 3
    Digitale Medien
    Digitale Medien
    Scanning electron microscopy of the subarachnoid macrophages after subarachnoid haemorrhage, and their possible role in the formation of subarachnoid fibrosis (1979)
    Springer
    Acta neurochirurgica 50 (1979), S. 273-280 
    Details
    ISSN: 0942-0940
    Schlagwort(e): Macrophage ; subarachnoid haemorrhage (SAH) ; subarachnoid fibrosis ; scanning electron microscope (SEM)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Sixty dogs with experimental subarachnoid haemorrhage (SAH), repeated SAH, and subarachnoid fibrosis (examined three weeks and three months after SAH, and treated with urokinase or dexamethasone) were examined by scanning electron microscope (SEM). The authors observed the resting and activated macrophages, the erythrophagocytosis, and giant cells in the subarachnoid space after SAH. They consider that the macrophages play an important role in the formation of subarachnoid fibrosis, similar to the role of macrophages in fibrosis in other sites.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01808524
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  • 4
    Digitale Medien
    Digitale Medien
    Arachnoid villi affected by subarachnoid pressure and haemorrhage (1979)
    Springer
    Acta neurochirurgica 51 (1979), S. 63-72 
    Details
    ISSN: 0942-0940
    Schlagwort(e): Arachnoid villi ; subarachnoid hemorrhage (SAH) ; increased subarachnoid pressure ; scanning electron microscope (SEM)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The arachnoid villi of 18 dogs were studied. The authors confirmed the pressure gradient changes of the morphology of arachnoid villi of dogs with the scanning electron microscope (SEM). A subarachnoid infusion with 5–10 times higher pressure gradient than the physiological one, tore the superficial endothelial layer from the villi, and the inner part could also be observed stereoscopically. On the surface of the arachnoid villi the authors observed microvilli, openings of vacuoles and intercellular gaps, but did not find openings of preformed channels. After subarachnoid haemorrhage (SAH) generally the villi were blocked but the authors have observed a red blood cell escaping from a villus intercellularly.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01401795
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