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  • 1990-1994  (4)
  • 3,4-dihydroxyphenylacetic acid  (1)
  • 97.10.Tk  (1)
  • ATP  (1)
  • Area  (1)
  • 1
    Electronic Resource
    Electronic Resource
    High resolution study of24Mg(p, d)23Mg for the Ne-E problem (1994)
    Springer
    The European physical journal 348 (1994), S. 59-60 
    Details
    ISSN: 1434-601X
    Keywords: 27.30.+t ; 97.10.Cv ; 97.10.Tk ; 97.30.Qt ; 98.58.Ca
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Nuclear levels of23Mg near and above the proton threshold were investigated with high resolution. A new level has been identified at 7.643 MeV (66 keV above the proton threshold) with a possible Jπ=(3/2, 5/2)+. Some other spin-parity and excitation-energy assignments are also made. These results enable the reaction rate estimate of22Na(p,γ)23Mg with much smaller uncertainties, which is critical for the Ne-E problem in nuclear astrophysics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291654
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neutrophil function in hyperosmotic NaCl is preserved by phosphoenol pyruvate (1991)
    Springer
    Urological research 19 (1991), S. 223-227 
    Details
    ISSN: 1434-0879
    Keywords: Hyperosmolarity ; NaCl ; Neutrophil ; Phosphoenol pyruvic acid ; ATP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Hyperosmolority in the urinary tract inhibits the host defense against bacterial infection. NaCl contributes most to osmolority in the renal medulla and urine. Therefore, we studied the effect of hyperosmolar NaCl on neutrophil function. When osmolarity was increased by NaCl, polymorphonuclear leukocytes (PMNL) became defective in phagocytosis, intracellular killing of bacteria, chemotactic activity, and superoxide production. This coincided with a decrease in the intracellular adenosine triphosphate (ATP) content of PMNL. Both the inhibition of superoxide production and the reduction in ATP content did not occur at 4°C. By increasing ATP content, phosphoenol pyruvic acid (PEP) protected against the decrease in superoxide production. These results suggest that leukocyte function is inhibited by high concentrations of NaCl due to the activation of the Na+−K+ pump. PEP, an ATP precursor, can protect PMNL against osmotic stress by raising the intracellular concentration of ATP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305299
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Afferent connections of the prelunate visual association cortex (areas V4 and DP) (1990)
    Springer
    Anatomy and embryology 181 (1990), S. 19-30 
    Details
    ISSN: 1432-0568
    Keywords: Prestriate cortex ; Pulvinar ; Area V4 ; Area ; DP ; Temporo-basal association cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The afferent and efferent connections of the prelunate visual association area V4 of macaque monkeys were investigated by means of the horseradish peroxidase (HRP) method. The specific thalamic afferents from the dorsolateral segment of the medial pulvinar and the lateral segment of the inferior pulvinar were topographically organized. A band of cells was labelled in the intralaminar nuclei (nucl. centr. med. and lat., reaching into LD and the most dorsal part of VL), and a few cells in the interlaminar layers of the lateral geniculate body. Other diencephalic afferents included the claustrum, the nucleus basalis Meynert and the pars compacta of the substantia nigra. Ipsilateral cortical areas which projected into V4 included area 18 (V2), the inferior parietal cortex, the anterior and posterior parts of the superior temporal sulcus, the frontal eye fields and the temporo-basal association cortex on the lateral half of the parahippocampal gyrus and around the occipito-temporal sulcus. In the contralateral cortex, discontinuous regions in areas V4 and V5 on the prelunate gyrus and some cells at the 17/18-border were labelled. All regions in which labelled cells were found and, in addition a restricted region in the dorsal cap of the head and the tail of the caudate nucleus showed fibre and terminal labelling. In addition mesencephalic afferents and efferents were identified but not investigated in detail. An attempt to estimate the quantitative contribution of the various afferent systems to the prelunate cortex was made by counting the labelled cells in the different areas. The afferent and efferent organization of the prelunate visual association area indicates that it is incorporated in a network of cortical and subcortical regions involved in various aspects of visual behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00189724
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    L-threo-3,4-dihydroxyphenylserine, a noradrenaline precursor, inhibits dopamine release and metabolism in the rat striatum in vivo (1992)
    Springer
    Cellular and molecular life sciences 48 (1992), S. 1133-1134 
    Details
    ISSN: 1420-9071
    Keywords: In vivo microdialysis ; striatum ; noradrenaline ; L-threo-3,4-dihydroxyphenylserine ; dopamine release ; 3,4-dihydroxyphenylacetic acid ; homovanillic acid ; high performance liquid chromatography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effect of L-threo-3,4-dihydroxyphenylserine (L-threo-DOPS) on dopamine (DA) release and metabolism in the striatum was studied in freely moving rats by intracerebral microdialysis techniques. The DA level as well as the levels of 3,4-dihydroxyphenylacetic acid and homovanillic acid were significantly decreased 140 min after the administration of L-threo-DOPS (50 mg/kg intraperitoneally). The results suggest that L-threo-DOPS inhibits the release and metabolism of DA in the striatum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01948006
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    Paper (German National Licenses)
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