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  • Key words [18F]-Fluorodeoxyglucose-positron emission tomography   (1)
  • Local therapy of burn  (1)
  • cerebral blood volume  (1)
  • triazolam  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Cerebral circulation and metabolism in adults' Moyamoya disease-PET study (1989)
    Springer
    Acta neurochirurgica 100 (1989), S. 150-154 
    Details
    ISSN: 0942-0940
    Keywords: PET ; moyamoya disease ; cerebral blood flow ; cerebral blood volume
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Regional cerebral blood flow (rCBF), oxygen extraction fraction (rOEF), cerebral metabolic rate for oxygen (rCMRO2) and cerebral blood volume (rCBV) in nine cases of moyamoya disease in adults were studied with positron emission CT (PET) scan, using15O steady-state methods. Three cases showed ischaemic symptoms and the other six cases showed haemorrhagic symptoms. PET scan was performed during the chronic stage. Control data were obtained from eight normal volunteers. Regional cerebral blood flow and other physiological parameters in cerebral gray matter, white matter and basal ganglia were compared with normal controls. All nine cases of Moyamoya disease showed decreased rCBF, though not significant, in cerebral gray matter, white matter and basal ganglia. Reduction of rCBF was significant in the cerebral cortex of six haemorrhagic cases. This significant decrease was considered to be due to diaschisis and also brain atrophy caused by the cerebral haemorrhage. There was a significant increase in rCBV in white matter of the both ischaemic and haemorrhagic cases. The calculated value of CBF/CBV is considered to be an index of perfusion pressure. This value was significantly decreased in all three regions, though rOEF was not significantly increased in moyamoya disease. Hence the cerebral circulation in adults with moyamoya disease appears to be characterized by a mild decrease in perfusion pressure and prolonged circulated time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01403603
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    [18F]-Fluorodeoxyglucose-positron emission tomography findings in preterm infants with severe periventricular leukomalacia and hypsarrhythmia (1997)
    Springer
    European journal of pediatrics 156 (1997), S. 236-238 
    Details
    ISSN: 1432-1076
    Keywords: Key words [18F]-Fluorodeoxyglucose-positron emission tomography  ;  Periventricular leukomalacia  ;   Hypsarrhythmia  ;  Preterm infant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two preterm infants with extensive periventricular leukomalacia (PVL) were examined by [18F]-fluorodeoxyglucose-positron emission tomography (FDG-PET) at the corrected ages of 18 and 34 days. They showed similar clinical courses including oculoclonic seizure, hypsarrhythmia and severe mental retardation, in addition to spastic quadriplegia. FDG-PET study of these two infants with severe PVL disclosed poorly developed metabolic activity in the primary sensorimotor cortex, while the MRI images displayed only periventricular white matter lesions. Conclusion Positron emission tomography may dis‐close cortical involvement in infants with severe periventricular leukomalacia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004310050591
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Triazolam-induced modulation of muscarinic acetylcholine receptor in living brain slices as revealed by a new positron-based imaging technique (1998)
    Springer
    Journal of neural transmission 105 (1998), S. 1117-1127 
    Details
    ISSN: 1435-1463
    Keywords: Keywords: Brain slice ; positron emitting tracer ; triazolam ; muscarinic acetylcholine receptor ; amnesia.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. The effect of triazolam, a potent benzodiazepine (BZ) agonist, on muscarinic acetylcholinergic receptor (mAChR) binding was investigated in living brain slices by use of a novel positron-based imaging technique. Fresh rat brain slices were incubated with [11C]N-methyl-4-piperidylbenzilate ([11C]NMPB), a mAChR antagonist, in oxygenated Krebs-Ringer solution at 37°C. During incubation, time-resolved imaging of [11C]NMPB binding in the slices was constructed on the storage phosphor screens. Addition of triazolam (1 μM) plus muscimol (30 μM), a GABAA receptor agonist, to the incubation mixture decreased the specific binding of [11C]NMPB. Ro15-1788, a BZ receptor antagonist, prevented this effect, indicating that the effect was exerted through the GABAA/BZ receptor complex. These results demonstrated that stimulation of the GABAA/BZ receptor lowers the affinity of the mAChR for its ligand, which may underlie the BZ-induced amnesia, a serious clinical side effect of BZ. No such effect in the P2-fraction instead implies that the integrity of the neuronal cells and/or their environment is prerequisite for the modulation of mAChR by GABAA/BZ stimulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007020050116
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Clinical application of chitin non-woven fabric as wound dressing (1987)
    Springer
    European journal of plastic surgery 10 (1987), S. 66-69 
    Details
    ISSN: 1435-0130
    Keywords: Chitin ; Wound dressing ; Donor site ; Local therapy of burn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A new wound dressing, chitin non-woven fabric was applied in 91 patients for dressing of donor sites, skin graft areas, raw areas under pedicle flaps and those associated with skin abrasion, as well as burns and skin ulcers. Chitin dressing showed excellent results with regard to satisfactory pain relief, adherence to the wound and drying without dissolution or other adverse effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578375
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    Paper (German National Licenses)
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