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  • 1
    Electronic Resource
    Electronic Resource
    Projections of the interstitial nerve cells surrounding the globus pallidus: A study of retrograde changes following cortical ablations in rabbits (1971)
    Springer
    Anatomy and embryology 133 (1971), S. 135-160 
    Details
    ISSN: 1432-0568
    Keywords: Interstitial neurons ; Reticular neurons ; Globus pallidus ; Axonal projections ; Frontal cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Normative description of the neuronal net of the interstitial nerve cells surrounding the globus pallidus as seen in Nissl-stained preparations is presented. This neuronal net of the interstitial nerve cells, in corroboration with our earlier work, is found to surround the globus pallidus from all aspects and also form the rostral and caudal poles of this neural structure. The interstitial nerve cells lying at the rostral pole of the globus pallidus, in the external medullary lamina of the striatum, at the base of the globus pallidus, and in the anterior twothirds of the internal capsule send their axonal projections to the frontal cortex, which includes the premotor, motor and sensory areas, and the anterior region of the parietal cortex. Since these interstitial nerve cells of the neuronal net appear morphologically and histochemically identical to the neurons of the reticular formation, it is suggested that the entire neuronal net of the interstitial nerve cells is an extension of the diffuse portions of the reticular formation, and that it may be one of the last steps of the diffuse ascending reticulo-cortical pathways.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00528020
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  • 2
    Electronic Resource
    Electronic Resource
    An evaluation of the interstitial nerve cells in the cerebellum (1970)
    Springer
    Anatomy and embryology 131 (1970), S. 283-290 
    Details
    ISSN: 1432-0568
    Keywords: Interstitial neurons ; Isodendritic neurons ; Reticular formation ; Cerebellum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Large multipolar interstitial neurons, isodendritic in their morphology, present in the medullary regions of the cerebellum are described. Histochemically these nerve cells are characterized by an intense acetylcholinesterase activity. On the basis of their morphological criteria and histochemical properties, and in continuation with our earlier study on the interstitial neurons in the white-matter regions of the central nervous system, it is suggested that the interstitial nerve cells form a vast nerve net within the central nervous system, which is an extension of the diffuse reticular formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00519972
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  • 3
    Electronic Resource
    Electronic Resource
    Influences of the pia mater on the precursors of nerve cells (1972)
    Springer
    Anatomy and embryology 138 (1972), S. 227-240 
    Details
    ISSN: 1432-0568
    Keywords: Pial cells ; Proliferative cells ; Epithelioid cells ; Ependymal cells ; Cerebellum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In the developing cerebellum of 8-day old rats surgical lesions were made. During regeneration of the cerebellum the pia mater was found to penetrate inside the neural tissue. Partially differentiated Purkinje cells and granule cells, that were in close contact with the pial cells, were found atrophied. When the profilerative cells of external granular layer came into contact with the pial cells, they were reduced to a primitive type of epitheloid cells. In this instance epithelio-mesenchymal interaction was found deleterious to the precursors of neurons. However, when the epithelioid cells were freed from the contact with the pial cells by intervening basement membrane, they differentiated into ependymal cells. Such ependymal cells gave rise to small as well as large new ventriculer structures, and structures resembling chorioid plexus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00520704
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  • 4
    Electronic Resource
    Electronic Resource
    Neuroembryogenesis in the hippocampal formation of the rat (1974)
    Springer
    Anatomy and embryology 144 (1974), S. 173-186 
    Details
    ISSN: 1432-0568
    Keywords: Hippocampus ; Neurogenesis ; Autoradiography ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summay The prenatal ontogeny of the hippocampus, including the anterior continuation and induseum griseum, was examined in the rat by means of tritiated thymidine autoradiography. The neurons of the anterior continuation formed between the 16th and 18th days of embryonic development. The neurons of the induseum griseum were formed on the 16th and 17th days of gestation. The pyramidal cells of ammon's horn were formed during the 16th, 17th, 18th, and 19th days of embryogenesis but were preceded by the large interneurons of the stratum lacunosum-moleculare which formed on days 15 and 16 of embryonic life. The granule cells of the superficial layers of the stratum granulosum formed during the 20th, 21st, and 22nd days of gestation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00519773
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  • 5
    Electronic Resource
    Electronic Resource
    Nature and significance of spontaneous degeneration of axons in the pyramidal tract (1972)
    Springer
    Anatomy and embryology 136 (1972), S. 98-114 
    Details
    ISSN: 1432-0568
    Keywords: Degenerating axons ; Pyramidal tract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary During postnatal development of the rat the nature of spontaneous degeneration of axons in the pyramidal tract was studied electron microscopically. The degenerating axons were found more frequently in young animals than in old animals, and they were generally found in bundles. On the basis of electron-opacity and visibility of ultrastructural details in the degenerating axons, and frequency of their occurrence at various developmental stages the degenerating axons were classified into four groups representing four stages of severity of spontaneous degeneration of axons in the pyramidal tract. In the context of neuroembryological material, autoradiographic as well as silver-impregnated, it was established that these spontaneously degenerating axons arose from the reticular formation of the brain stem and that they had ascending as well as descending components, the latter descending in the spinal cord. Possible significance of such reticulo-spinal axons in the primitive organization of the embryonic nervous system and its determination of the spontaneous motility in early embryos, and in the apparently directed growth of the cortico-spinal axons during late stages of embryonic development are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00521105
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  • 6
    Electronic Resource
    Electronic Resource
    Neurogenesis in the cerebellum of the rat: An autoradiographic study (1972)
    Springer
    Anatomy and embryology 138 (1972), S. 155-165 
    Details
    ISSN: 1432-0568
    Keywords: Cerebellum ; Neurogenesis ; Autoradiography ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Time of origin of various neuronal elements in the cerebellum of rat was established with the aid of tritiated-thymidine-autoradiography. The earliest nerve cells to form were the Purkinje cells, and they came into existence on days 15 and 16 of gestation. Interstitial nerve cells had their genesis on days 15, 16, 17 and 18, and the marginal cells on day 16 of the embryonic development. The Golgi cells were found to come into existence on days 17, 18 and 19 of gestation. On day 21 of gestation a number of small-medium-sized nerve cells, which were smaller than the Golgi cells but larger than the granule cells, were seen to come into existence. Finally, the earliest stock of granule, basket and stellate cells, primarily in the nodulus, flocculus and para-flocculus, were observed to have been formed on the day 21 of embryogenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00519378
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  • 7
    Electronic Resource
    Electronic Resource
    Heterotopic cell nests in the developing rat cerebellum (1974)
    Springer
    Acta neuropathologica 30 (1974), S. 1-9 
    Details
    ISSN: 1432-0533
    Keywords: Cell Nests ; External Granular Layer ; Capillaries ; Cerebellum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Serial sagittal sections of the postnatally developing cerebellum of Wistar rats were studied to determine the incidence, origin, and relation to other cerebellar structures of nests of heterotopic cells. These nests were found to consist of small, darkly staining cells of either irregular or elongate shape with large, dark nuclei and bore close resemblance to cells of the external granular layer. They were present in every animal from the day of birth to at least day 15 of life and were confined to the uvula, nodulus, and pyramis of the vermis. In addition, the cell nests were found to be perivascular and continuous with the external granular layer via a narrow tongue of cells surrounding capillaries which penetrated to the medullary layer of the cerebellum from the subarachnoid space. The significance of the nests in relation to other studies, and their involution after day 15 of life is briefly considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00685316
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  • 8
    Electronic Resource
    Electronic Resource
    Postnatal Neurogenesis in the Guinea-pig (1967)
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 1098-1101 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The young of rats and mice are immature at birth. After birth, their brains grow in size and there is also a marked proliferation of cells which become differentiated into neurones with short axons (micro-neurones). The proliferation of similar cells has now been demonstrated in the hippocampus of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2141098a0
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  • 9
    Electronic Resource
    Electronic Resource
    Post-Natal Origin of Microneurones in the Rat Brain (1965)
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 953-956 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MITOTIC neurones are seldom, if ever, seen after birth in the brains of mammals, from which it is commonly concluded that neurogenesis is a pre-natal phenomenon. This conclusion is not often questioned, even though post-natal neurogenesis in some brain structures has been well established for some ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/207953a0
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  • 10
    Electronic Resource
    Electronic Resource
    Neural Transplantation in Normal and Traumatized Spinal Cord (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 495 (1987), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1987.tb23665.x
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