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Ultrastructural features of immaturity in blood vessels of neonatal rat spinal cord

Rafałowska, J.; Fidziańska, A.; Jamrozik, Z.

Polish Journal of Pathology Official Journal of the Polish Society of Pathologists 50(4): 269-276

1999

ISSN/ISBN: 1233-9687
PMID: 10721267
Document Number: 507942
Ultrastructural study was carried out on the lumbo-sacral segment of the spinal cord in 1, 3, 6, 9, 12, 15, 18, 21 and 25-day-old rats. Unusual features of blood vessels in postnatal life of rats were observed: capillaries with abundant endothelial cells, numerous invaginations and narrow lumen. In addition, microvilli of diverse size and number on the luminal surface of capillaries as well as larger vessels were present. They were more numerous in younger animals. An intriguing finding, not observed in older animals, was the appearance of abluminal protrusions projecting into surrounding tissue. Closed endothelial junctions were noted in all the investigated vessels. The above mentioned ultrastructural features indicate an immature character of blood vessels. The presence of this kind of vessels during the postnatal period may be connected with vascularisation of spinal cord due to the myelination process.

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Leĭtes, A.L.; Sabirov, M.A. 1977: Changes in the blood vessels of the spinal cord and spinal ganglia following chronic stimulation of the lumbar regions of the sympathetic trunks and gangliosympathectomy Arkhiv Anatomii Gistologii i Embriologii 73(11): 101-107
Garanty-Bogacka, B.; Czeszyńska, M.B.; Syrenicz, M.łg.; Gebala, A.; Kordek, A.; Janus, D.; Walczak, M.ła.; Krupa, B.; Szołomicka-Kurzawa, P.; Czajka, R. 2003: Immaturity or hypotrophy? the cord blood leptin levels in preterm and small-for-gestational age neonates Ginekologia Polska 74(5): 356-361
Ide, R.; Fukusaki, M.; Yamaguchi, K.; Matsumoto, M.; Ogata, K.; Sumikawa, K. 1997: Effect of controlled hypotension induced by prostaglandin E1 on evoked spinal cord potential and spinal cord blood flow Masui. Japanese Journal of Anesthesiology 46(10): 1342-1346
Griffiths, I.R.; Pitts, L.H.; Crawford, R.A.; Trench, J.G. 1978: Spinal cord compression and blood flow. I. The effect of raised cerebrospinal fluid pressure on spinal cord blood flow Neurology 28(11): 1145-1151
Itakura, T.; Naka, Y.; Nakakita, K.; Kamei, I.; Nakai, K.; Komai, N.; Imai, H.; Kimura, H.; Maeda, T. 1984: Morphological study on innervation of the cerebrospinal blood vessels. II. Spinal blood vessels No Shinkei Geka. Neurological Surgery 12(4): 453-457
Hański, W.; Rydzewska, M.; Fundowicz, R. 1977: Emboli of spinal cord vessels with tissue of nucleus pulposus Neuropatologia Polska 15(4): 479-490
Sudo, N. 1980: Clinical application of the evoked spinal cord potentials. Part 1. Neurophysiological assessment of the evoked spinal cord potentials in experimental cord trauma - with reference to cord compression and ischemia Nihon Seikeigeka Gakkai Zasshi 54(12): 1631-1647
Shaĭmardanova, G.F.; Mukhamedshina, I.O.; Arkhipova, S.S.; Salafutdinov, I.I.; Rizvanov, A.A.; Chelyshev, I.A. 2011: Posttraumatic changes of rat spinal cord after transplantation of human umbilical cord blood mononuclear cells transfected with VEGF and FGF2 genes Morfologiia 140(6): 36-42
Malinský, J.; Malínská, J. 1973: A comparative anatomical and ultrastructural study of the grey matter of the spinal cord in hedgehog and bat Activitas Nervosa Superior 15(1): 30-31
Cervero, F.; Plenderleith, M.B. 1987: Spinal cord sensory systems after neonatal capsaicin Acta Physiologica Hungarica 69(3-4): 393-401
Hallen, O. 1980: Circulatory disorders affecting the spinal cord: clinical features Der Nervenarzt 51(2): 78-80
Isu, T. 1990: Spinal cord evoked potential in experimental spinal cord injury--the changes in spinal cord evoked potential following impact injury, and effect of mannitol administration on acute experimental spinal cord injury Hokkaido Journal of Medical Science 65(2): 142-151
Bloom, M.C.; Darwich, A.; Rolland, M.; Raynaud, E.J. 1988: Neonatal spinal cord injuries and magnetic resonance imaging Archives Francaises de Pediatrie 45(10): 823-825
Johnson, I.P. 1986: A quantitative ultrastructural comparison of alpha and gamma motoneurons in the thoracic region of the spinal cord of the adult cat Journal of Anatomy 147: 55-72
Soeda, S. 1988: An experimental study on conductive spinal cord action potentials evoked by direct stimulation of the spinal cord--pathway and source of conductive action potentials in the spinal cord Nihon Seikeigeka Gakkai Zasshi 62(5): 535-549
Vankov, V. 1980: Ultrastructural mechanisms of transendothelial transport in blood vessels Eksperimentalna Meditsina i Morfologiia 19(4): 189-196
Shaheen, H.; Abubakar, S.; Malik, I.; Altafullah, I.; Alam, F.; Khan, A. 1991: Epidural spinal cord compression from metastatic cancer: clinical features and management Jpma. Journal of the Pakistan Medical Association 41(3): 60-62
Emeliannikov, D.V.; Shapkova, E.Y.; Moshonkina, T.R.; Gerasimenko, Y.P. 2016: Evaluation of motor neuron excitability in lumbosacral spinal cord: Transcutaneous spinal cord stimulation as compared to H-reflex Fiziologiia Cheloveka 42(3): 32-36
Bogacheva, I.N.; Nikitin, O.A.; Musienko, P.E.; Savokhin, A.A.; Gerasimenko, I.P. 2009: Mechanisms of stepping rhythm formation during epidural spinal cord stimulation in decerebrated and spinal cord transected cats Biofizika 54(3): 529-536
Isu, T.; Iwasaki, Y.; Akino, M.; Abe, H. 1990: Effect of mannitol administration and myelotomy on acute experimental spinal cord injury: investigation by spinal cord evoked potential No Shinkei Geka. Neurological Surgery 18(3): 267-272