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  • Anionic sites  (1)
  • Cerebral perivascular spaces  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Diffusion of horseradish peroxidase perfused through the lateral ventricle of the chick telencephalon (1975)
    Springer
    Cell & tissue research 157 (1975), S. 535-540 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Cerebral perivascular spaces ; Peroxidase ; Electron microscopy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Horseradish peroxidase, perfused into the lateral ventricle of chick brain, freely and slowly diffuses through the cerebral extracellular spaces. The layer of astrocytic end-feet surrounding blood capillaries does not constitute a barrier to the tracer which permeates the basal lamina, diffuses between the pericytic cells and finally accumulates in the intercellular space beneath the tight junctions between contiguous endothelial cells. No evidence was found for transport by micropinocytotic vesicles from the cerebral parenchyma to the capillary lumen.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00222605
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Anionic sites in the basement membrane of the rat epididymal epithelium during ontogenesis and after testicular and gonadal tract lesions (1987)
    Springer
    Cell & tissue research 250 (1987), S. 135-139 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Epididymis ; Basement membrane ; Anionic sites ; Differentiation ; Androgen ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Anionic binding sites in the lamina densa of the basement membrane of the rat epididymal epithelium were demonstrated ultrastructurally with the use of cationized polyethyleneimine (PEI). Enzyme digestion with heparitinase removed the anionic sites, indicating that they consist largely of heparan sulfates. The anionic sites are present as early as the 16th day of gestation on the interstitial face of the lamina densa; later during gestation they are localized on both faces of the lamina densa without further modification after birth. The distribution of the anionic sites was identical all along the epididymal duct. After castration and ligation of efferent ducts or in the state of cryptorchidism the sites were more numerous and located inside the thicker portion of the lamina densa. These alterations were more prominent in the initial segment compared to the distal segments, suggesting a differential androgen dependence of the reactive sites and their patterns of distribution.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00214664
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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