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  • 1
    Electronic Resource
    Electronic Resource
    A comparative ultrastructural analysis of the third cerebral ventricle of the North American mink (Mustela vison)Supported by U.S.P.H.S. grant NS 08171. (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    The @Anatomical Record 175 (1973), S. 155-168 
    Details
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: The third ventricular walls and floor of male and female mink (Mustela vison) were analyzed with comparative light microscopy, transmission and scanning electron microscopy. Distinct regional fine structural variations were noted in the appearance of the dorsal, middle third and lower portions of the ventricular wall and floor. These variations were characterized by an abrupt decrease in the density of ciliated ependymal surfaces in the middle one-third of the ventricular wall. The ventral walls and floor of the lateral and infundibular recesses displayed smoother contours with numerous bleb-like protrusions and blunt villiform processes. Occasionally multipolar neuron-like cells were observed to lie upon the floor of the infundibular recess. Speculation is raised relative to the differing functional capacities of these various ventricular areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ar.1091750204
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structure and function of the median eminenceThis research was supported by USPHS grant NB 08171 and AM 10002. (1970)
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 129 (1970), S. 223-243 
    Details
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aja.1001290211
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of the lateral ventricles of sheepSupported by USPHS Grant NS-08171. (1972)
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 135 (1972), S. 561-566 
    Details
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: The lateral ventricles and choroid plexuses of an adult and near-term sheep fetus were examined with scanning electron microscopy. The predominant surface structure of the ependymal cells were cilia arranged in clumps with evidence of metachronic activity. Topographical variations of the ependymal surface are described and discussed according to their role in transport of cerebrospinal fluid and their relation to underlying nervous tissue.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aja.1001350409
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Structure and function of the median eminence (1970)
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 129 (1970), S. 245-246 
    Details
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aja.1001290212
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A cluster of supraependymal neurons located within the infundibular recess of the rat third ventricleSupported in part by PHS grant 5429 and NSF INST grant 1972-141. (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 140 (1974), S. 129-133 
    Details
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: A nidus of supraependymal cells was located within the infundibular recess of a rat's third ventricle. Upon transmission electron microscopic analysis, these cells were clearly identified as neurons. Neuronal processes, as well as end-terminals that contained dense-core and clear synaptic-like vesicles, were also observed coursing around these cells. It is suggested that some of the supraependymal cells that have been observed in previous scanning electron microscopic studies could be neurons similar to those described here.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aja.1001400109
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Extraction of an actomyosin-like protein from amoebae of Dictyostelium discoideum (1970)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 76 (1970), S. 185-190 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: An actomyosin-like protein has been extracted from amoebae of Dictyostelium discoideum, V-12. The purified protein exhibited a reversible change in viscosity upon addition of ATP, indicating an ATP sensitivity of 75-85% and a specific viscosity of 0.1. At low ionic strength in the presence of Mg++ and ATP the amoeba protein displayed the phenomenon of superprecipitation. The protein extract was found to be an adenosinetriphosphatase (ATP'ase) hydrolyzing ATP to ADP and inorganic phosphate. Both Mg++ and Ca++ at low ionic strength accelerated the ATP ase activity whereas at high ionic strength only Ca++ stimulated ATP hydrolysis. The ATP'ase activity was inhibited by ethylene-diamine-tetraacetic-acid, Mersayl and p-chloromercuribenzoate. The physico-chemical and enzymatic properties of the extracted amoeba protein are qualitatively comparable to those of muscle actomyosin, and very similar in quantitative properties to smooth muscle actomyosin and the actomyosin-like proteins of blood platelets, leucocytes and slime mold plasmodia. The significance of the presence of this actomyosin-like protein in Dictyostelium amoebae is discussed in relation to amoeboid form and movement.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040760208
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Correlation of adenosine phosphate levels with cellular morphology in Dictyostelium discoideum amoebae (1970)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 76 (1970), S. 191-196 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Prior to completion of aggregation and the beginning of multicellular differentiation, the amoebae of Dictyostelium discoideum assume two distinct phases with characteristic changes in cellular movement, shape and adhesiveness. These two phases of amoeboid behaviour have been studied with respect to the quantitative analysis of the intracellular adenosine phosphates, using both enzymatic and chromatographic techniques. A higher intracellular ATP level and energy-charge has been found for the actively moving, non-adhesive amoebae as compared to the flattened, mutually adhesive cells. The importance and possible role of ATP in regulating amoeboid form, movement and cell adhesion is discussed.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040760209
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