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  • 1
    Electronic Resource
    Electronic Resource
    Gating and Permeation of Different Types of Ca Channels (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 560 (1989), 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.1749-6632.1989.tb24081.x
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  • 2
    Electronic Resource
    Electronic Resource
    Spinal Interneurons (1979)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 41 (1979), S. 115-126 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ph.41.030179.000555
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  • 3
    Electronic Resource
    Electronic Resource
    Intracellular Perfusion (1982)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Neuroscience 5 (1982), S. 107-120 
    Details
    ISSN: 0147-006X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ne.05.030182.000543
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  • 4
    Electronic Resource
    Electronic Resource
    Calcium channels in the neuronal membrane
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Reviews on Biomembranes 650 (1981), S. 128-150 
    Details
    ISSN: 0304-4157
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0304-4157(81)90003-4
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  • 5
    Electronic Resource
    Electronic Resource
    Asymmetrical displacement currents in nerve cell membrane and effect of internal fluoride (1977)
    [s.l.] : Nature Publishing Group
    Nature 267 (1977), S. 70-72 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We measured asymmetrical transients in neurones isolated from the snail Helix pomatia. The neurones were internally dialysed with potassium-free 130mM Tris-phosphate solution -f5mM CsCl G?H 7.4). The external solution contained 120 mM Tris-HCl and 10 mM Ca and was free of Na, K and Mg. External ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/267070a0
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of internal fluoride and phosphate on membrane currents during intracellular dialysis of nerve cells (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 691-693 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Experimental design for intracellular dialysis and voltage clamping. The dimensions of the pore were: D± = 200 um, Z〉2 = 40 jam. Polyethylene film has a thickness d of 400 um. The suction in the pore is regulated by changing the level of the outflow as shown by a vertical arrow. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/257691a0
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  • 7
    Electronic Resource
    Electronic Resource
    Injection of Alkaline Cations into Cat Spinal Motoneurones (1962)
    [s.l.] : Nature Publishing Group
    Nature 196 (1962), S. 1319-1320 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. A and (7, antidroraically evoked spike potentials in two different motoneurones which were impaled with Li+ and Cs* containing micro-electrodes respectively. B and D, illustrating, with higher amplification and slower sweep velocity, the poly-synaptic inhibitory post-synaptic potentials ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1961319a0
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  • 8
    Electronic Resource
    Electronic Resource
    Free calcium transients and oscillations in nerve cells (1991)
    Springer
    Experimental brain research 83 (1991), S. 459-464 
    Details
    ISSN: 1432-1106
    Keywords: Intracellular calcium transients ; Oscillations ; Nerve cells ; Snail
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Changes in the intracellular level of free calcium induced by different influences in neurones of the snail Helix pomatia have been measured by changes in Fura-2 fluorescence. Thymol in submillimolar concentrations induced the release of stored intracellular calcium. This effect was similar to xantine-induced release. IP3 and Gpp[NH]p injections also released intracellular calcium. The response to cAMP injections was more complicated and included, probably, both the release of stored calcium and its influx through membrane channels. Oscillations of intracellular free calcium are described. It has been suggested that oscillations can occur only in cases where the mechanism of Ca-dependent calcium release is activated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00231173
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  • 9
    Electronic Resource
    Electronic Resource
    An electron microscopic analysis of pyramidal tract terminations in the spinal cord of the cat (1971)
    Springer
    Experimental brain research 12 (1971), S. 105-119 
    Details
    ISSN: 1432-1106
    Keywords: Pyramidal tract ; Spinal cord ; External basilar region (EBR) ; Terminal degeneration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ultrastructure of the external basilar region (EBR) of the spinal cord has been investigated in normal cats and after ablation of the contralateral sensorimotor cortex. This region (lateral part of lamina V of Rexed) is the main site of termination of descending pyramidal fibres. The EBR contains neurons with light and dark cytoplasm and correspondingly light and dark dendrites. Axon terminals in the EBR can be divided into four types on the basis of the following structural criteria: (1) spheroid synapt vesicles, (2) flattened synaptic vesicles, (3) spheroid clear vesicles and large dense-core vesicles, (4) electron-dense plasma matrix and numerous spheroid vesicles. Types (1) and (2) prevail, forming mainly axondendritic contacts, generally with thin protrusions and spine-like appendages of the dendrites. A few larger synaptic arrangements of glomerular structure were observed. Signs of terminal degeneration can be recognized in the EBR as early as 30 hours after cortical ablation. The structural elements of these terminals are fused into a compact electron-dense material corresponding to the known “dark” type of degeneration. Three to five days after the lesions a second set of degenerating terminals become recognizable, in which the lysis of cytoplasmic elements is prevalent. This slower modus of degeneration might be distinguished as the “light” type. Degenerating terminals are located mainly on dendrites of the EBR neurons and are of small size. The shape of the synaptic vesicles can be recognized in some terminals undergoing degeneration according to the “light” type; they are, as a rule, of flattened type. Synaptic terminals do not degenerate in the glomerular complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234309
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  • 10
    Electronic Resource
    Electronic Resource
    Fast decrease of the peak current carried by barium ions through calcium channels in the somatic membrane of mollusc neurons (1985)
    Springer
    Pflügers Archiv 404 (1985), S. 88-90 
    Details
    ISSN: 1432-2013
    Keywords: Calcium channel ; barium ions ; peak current decrease ; potential-dependence ; snail neurons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In experiments on nonidentified intracellularly perfused snail neurons the effects of replacing external divalent cations on the function of potential-dependent Ca channels have been studied Ba substitution for Ca in the external medium caused a rapid decline (with half-times of about 2–3 min) in peak inward current amplitude when the current was activated from holding potential levels close to the resting potential. The decline could be reversed by membrane hyperpolarization. Barium current declined to a steady-state level which resembled in both relative amplitude (10–30% of the initial current amplitude) and insensitivity to intracellular introduction of exogenous cAMP the steady-state Ca current reached during the “wash out” process. It is suggested that two populations of Ca channels exist in snail neuronal membrane, one of which is dependent on cAMP metabolism and is reversibly switched off by the passage of Ba ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00581498
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