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1986 (1)
1978 (1)
1Author    B. Agostini, M. Stromer, W. HasselbadiRequires cookie*
 Title    Effect of Lipid Modification on Fusion of Sarcoplasmic Reticulum Vesicles  
 Abstract    Freeze fracture technique ascertains that sarcoplasmic reticulum vesicles fuse during aniso-diametric dehydration which leads to the formation of sheetlike structure o f a mean extension of 5000 A . M odification of the membrane lipids by phospholipase A 2 digestion or the incorporation of deoxycholate facilitates the coalescence of the vesicles, while it is com pletely prevented by lipid removal. Membrane fusion during anisodiametric dehydration is considered as resulting from the close contact of highly curved edges from which the 
  Reference    Z. Naturforsch. 33c, 428 (1978); received A p ril 11 1978 
  Published    1978 
  Keywords    Membrane Fusion, Sarcoplasmic Reticulum, Freeze Fracturing, Anisometric Dehydration, L ipid Modification 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0428.pdf 
 Identifier    ZNC-1978-33c-0428 
 Volume    33 
2Author    Hartwig Wolburg, Jochen Neuhaus, Andreas MackRequires cookie*
 Title    The Glio-Axonal Interaction and the Problem of Regeneration of Axons in the Central Nervous System — Concept and Perspectives  
 Abstract    Lesion of the central nervous system in man is generally believed to be incurable. However, in the last time evidence accumulated that axonal growth occurs after a lesion if the growing neurites encounter a permissive environment. Since astrocytes play a considerable role as environmental factor in the CNS, the astrocytes from regenerative as well as from non-regenerative species were compared. The concept proposed here postulates that interactions between astrocytes and axons are of basic significance for fiber regeneration and have changed qualitatively during phylogeny: in lower vertebrates astrocytes guide growing and regenerating axons; in higher vertebrates including man the glioaxonal interactions were possibly deteriorated by the appearance of new compounds in the astrocytic membrane. 
  Reference    Z. Naturforsch. 41c, 1147 (1986); received June 6 1986 
  Published    1986 
  Keywords    Central Nervous System, Axonal Regeneration, Astroglia, Orthogonal Arrays of Particles, Freeze-Fracturing 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-1147.pdf 
 Identifier    ZNC-1986-41c-1147 
 Volume    41