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  • Ischemia-reperfusion  (2)
  • 33.80.Eh  (1)
  • Adenosine  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Ethanol stimulates chemiluminescence from neutrophils in the liver
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 17 (1994), S. 35-43 
    Details
    ISSN: 0891-5849
    Schlagwort(e): Antineutrophil serum ; Chemiluminescence ; Ethanol ; Free radicals ; Ischemia-reperfusion ; Neutrophils
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0891-5849(94)90006-X
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Chemiluminescent response to PMA in isolated rat liver after in situ ischemia-reperfusion
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 15 (1993), S. 575-580 
    Details
    ISSN: 0891-5849
    Schlagwort(e): Free radicals ; Inflammatory cells ; Ischemia-reperfusion ; Luminol enhanced chemiluminescence (LEC) ; Neutrophils ; Phorbol myristate acetate (PMA)
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0891-5849(93)90159-R
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  • 3
    Digitale Medien
    Digitale Medien
    The metabolic rate and vulnerability of dopaminergic neurons, and adenosine dynamics in the cerebral cortex, nucleus accumbens, caudate nucleus, and putamen of the common marmoset (2000)
    Springer
    Journal of neurology 247 (2000), S. V16 
    Details
    ISSN: 1432-1459
    Schlagwort(e): Key words Dopamine ; Striatum ; Cerebral cortex ; Adenosine ; Parkinsonism
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The pathophysiology of the striatum and cerebral cortex were studied from the pharmacological aspect. Investigation of the dopamine content in the cerebral cortex revealed that the premotor and motor area showed the highest level (61±6.2 ng/g). Intravenous injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) at a dose of 10 mg/kg reduced the dopamine content in the caudate nucleus and putamen to 2–3% of the control level in common marmosets, while it fell to 60% in the nucleus accumbens. There was no alteration of the dopamine content in the cerebral cortex. Immunohistochemical staining for tyrosine hydroxylase in the midbrains of MPTP-treated marmosets showed almost complete disappearance of dopaminergic cells from the substantia nigra and good preservation of cells in the ventrotegmental area. Dopaminergic cells projecting to the caudate/putamen, nucleus accumbens, and cerebral cortex showed marked, moderate, and no vulnerability to MPTP, respectively. After systemic administration of MPTP, dopaminergic neurons projecting to the caudate nucleus and putamen were damaged equally. However, the compensatory increase of dopamine turnover was more prominent in the putamen than in the caudate nucleus. Thus, nigroputaminal dopaminergic neurons may have a higher level of activity than neuron in the caudate. The neural connections and functions of the caudate nucleus and putamen have already been differentiated anatomically or physiologically. This compensatory increase of the dopamine turnover rate is another aspect of functional differences between the caudate nucleus and putamen. Investigation of the dopamine content in the heat, body, and tail of the caudate nucleus showed no differences in the concentration of dopamine. However, a study of the metabolic rate of dopamine using α-methyl-p-tyrosine, a tyrosine hydoxylase inhibitor, showed higher metabolism of dopamine in the head of the caudate nucleus in common marmosets. Thus, dopaminergic neurons projecting to the caudate nucleus may show topographical differences in their firing rates. A microdialysis study indicated an increase in the metabolism of adenosine in the striatum of MPTP-treated animals. Cholinergic neurons are interneurons and are one of the main sources of adenosine in the striatum. Dopaminergic input from the substantia nigra acting on cholinergic neurons was decreased following MPTP treatment. The increase of adenosine metabolism suggested that cholinergic neurons in the striatum receive inhibitory inputs from nigrostriatal dopaminergic neurons.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/PL00007779
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  • 4
    Digitale Medien
    Digitale Medien
    Electronic structure and reactivity of Mg+(H2O) n cluster ions (1993)
    Springer
    The European physical journal 26 (1993), S. 180-182 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 36.40.+d ; 33.80.Eh
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Electronically excited states of magnesium-water cluster ions, Mg+(H2O) n ,n=1–5, are studied by photodissociation after mass selection. The observed photodissociation spectra are assigned to the2P–2S type transitions localized on the Mg+ ion with the aid of ab initio CI calculations. In addition to evaporation of water molecules, photoinduced intracluster reaction to produce MgOH+(H2O) n is found to occur efficiently, with pronounced size dependence. The intriguing features observed in the mass spectrum of nascent cluster ions are discussed in relation to the stepwise solvation of this reaction.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01425657
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