Reissner fiber

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The Reissner fibers (also: Reissner thread; after Ernst Reissner ) are a thread-like, fibrous glycoprotein structure in the CNS that occurs in vertebrates . Its course begins orally at the organum subcommissurale, through the aqueduct , fourth ventricle and central canal, to end in the ventriculus terminalis . Their course in fish is similar. They arise on the organum subcommissurale from a secretion that is released into the liquor by appropriately transformed ependymal cells . The glycoproteins contained therein spread in a fibrous manner caudally with the flow of the liquor.

The function of the Reissner fibers is unclear. They may conduct neurosomatic stimuli to the subcommissurale organ, or they may have a mechanical function (their capillary action could promote the circulation of colloids in the central canal). In the congenital water head , they are damaged.

Their dyeability corresponds to that of elastic fibers. They can be stained in fish with aldehyde fuchsine . The glycoproteins found as the basic substance of the Reissner fibers are also called SCO spondin (SCO is the abbreviation for subcommissural organ , the English name for the organum subcommissurale). These are among the non- thrombospondin proteins.

Individual evidence

  1. ↑ a b c d R. Jung, Rudolf Brun, Peter E. Becker, Eberhard Bay: Handbook of internal medicine . Springer-Verlag, 2013, ISBN 978-3-642-94610-3 , p. 611. (online)
  2. ↑ a b c Volker Blüm, Juan Casado, Jens Lehmann, Eva Mehring: Color Atlas of the Histology of the Rainbow Trout: Booklet with an introduction to the macroscopic anatomy of the rainbow trout. Introduction to tissue science. Dyeing instructions. Springer-Verlag, 2013, ISBN 978-3-642-73960-6 , panel XV. (on-line)
  3. ↑ J. Peiffer, JM Schröder, W. Paulus: Neuropathology: Morphological diagnosis of diseases of the nervous system and skeletal muscles. Springer-Verlag, 2013, ISBN 978-3-642-59371-0 , p. 26ff. (on-line)
  4. ^ María F. Guiñazú, Hans G. Richter, Esteban M. Rodríguez: Bovine floor plate explants secrete SCO-spondin. In: Cell and Tissue Research. May 2002. doi: 10.1007 / s00441-002-0511-5
  5. ↑ a b Robert B. Daroff, Michael J. Aminoff: Encyclopedia of the Neurological Sciences. Academic Press, 2014, ISBN 978-0-12-385158-1 . (on-line)
  6. ↑ S. Gobron, I. Creveaux, R. Meiniel, R. Didier, B. Dastugue, A. Meiniel: SCO spondin is evolutionarily conserved in the central nervous system of the chordate phylum. In: Neuroscience. 88 (2), Jan 1999, pp. 655-664. PMID 10197783 .