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  • 1
    Electronic Resource
    Electronic Resource
    Effects of fructose 1,6-bisphosphate on the activation of yeast phosphofructokinase by fructose 2,6-bisphosphate and AMP
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 831 (1985), S. 350-352 
    Details
    ISSN: 0167-4838
    Keywords: (Yeast) ; AMP ; Fructose 1,6-bisphosphate ; Fructose 2,6-bisphosphate ; Phosphofructokinase
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-4838(85)90119-0
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  • 2
    Electronic Resource
    Electronic Resource
    The “dense artery sign” — major cerebral artery thromboembolism demonstrated by computed tomography (1990)
    Springer
    Neuroradiology 32 (1990), S. 98-103 
    Details
    ISSN: 1432-1920
    Keywords: Cerebral infarction ; Thrombembolism ; Computed tomography ; Density quantification ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 4 years review of high resolution thin slice (3–5 mm) computed tomography performed within 24 h after cerebral infarction revealed increased density in a major cerebral artery segment in 28 patients. Arteries affected were the vertebral and basilar artery in 6 and 8 patients, the sphenoid course of the middle cerebral artery in 13 cases and the extracranial internal carotid artery in 1 patient. In 35.7% of cases the so called “dense artery sign” provided earliest evidence of the ensuing infarction documented by CT controls in most patients. Angiography carried out in 8 patients, density caculations in the course of the affected vessel and resolution of the increased density on subsequent CT examinations suggest thrombembolism as the most likely etiology. In the clinical setting of acute stroke increased artery density encompassing the entire vessel diameter may serve as an early indicator of major cerebral artery occlusion and prompt angiographic investigation of a lesion potentially amenable to lysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588557
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Reliability of transcranial colour-coded real-time sonography in assessment of brain tumours: correlation of ultrasound, computed tomography and biopsy findings (1994)
    Springer
    Neuroradiology 36 (1994), S. 585-590 
    Details
    ISSN: 1432-1920
    Keywords: Brain tumours ; Ultrasonography ; Computed tomography ; Stereotactic biopsy ; Transcranial colour-coded real time sonography ; Glloma ; Central nervous system ; Duplex sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Transcranial colour-coded real-time sonography (TCCS) was carried out in 25 patients with brain tumours to determine whether this noninvasive method provides additional information about the extent of solid tumour, its differentiation from oedema, and its tissue components. All 25 patients had serial computed tomography (CT)-guided stereotactic biopsies. Comparison of ultrasound, CT and histological findings revealed that the vast majority of contrast enhancing areas on CT were hyperechogenic (32/33; 97%) and contained tumour tissue (29/32; 91%). Hyperechogenic areas always represented solid tumour (23/23 patients), even when CT showed low density non-enhancing lesions. In lestons hypoechogenic on TCCS and low density on CT, histology consistently revealed necrotic tumour (7/7). Biopsies obtained from parenchyma with normal echogenicity revealed tumour in only 3 of 16 speciemens. Despite the high specificity of TCCS in the differentiation of tumour components, its sensitivity to tumour was inferior to that of CT (24/25; 96%). TCCS thus allows noninvasive preoperative identification of tumour tissue and its extent setting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00600414
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  • 4
    Electronic Resource
    Electronic Resource
    The basal ganglia in haemochromatosis (2000)
    Springer
    Neuroradiology 42 (2000), S. 9-13 
    Details
    ISSN: 1432-1920
    Keywords: Key words Haemochromatosis ; Magnetic resonance imaging ; Computed tomography ; Transcranial ultrasound ; Nucleus, lentiformis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Haemochromatosis is characterised by deposition of iron-containing pigment in various organs, but little is known about possible deposition in the brain and its clinical impact. We therefore investigated 14 patients with hereditary haemochromatosis with MRI, CT and transcranial ultrasound (TCS) and examined them neurologically. In six of the patients dense lesions were found within the lentiform nucleus on CT, all of whom displayed hyperechogenic lesions in the same area on TCS, as did one other patient. In these patients the relative signal intensities of the lentiform nucleus measured by MRI relaxometry were higher. No patient had clinical signs of basal ganglia disorders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050002
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  • 5
    Electronic Resource
    Electronic Resource
    Neurological long-term follow-up in left atrial myxoma: Are late complications frequent or rare? (1992)
    Springer
    Journal of neurology 239 (1992), S. 170-174 
    Details
    ISSN: 1432-1459
    Keywords: Atrial myxoma ; Neurological deficits ; Stroke ; Vasculitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neurological manifestations were analysed in 13 patients with left atrial myxoma confirmed by histological study. In this group, 6 patients had neurological complaints at initial presentation, 5 had cardiac symptoms, and 4 patients presented with signs of systemic disease. CT was performed in 10 and MRI in 7 patients. There were signs of ischaemic or haemorrhagic infarction (6 of 12) and one lesion suggestive of myxoma metastasis; other findings mainly comprised non-specific white matter lesions revealed by MRI. Neurological follow-up 0.5–8 years after tumour resection revealed no delayed neurological complications, follow-up CT and MRI findings were not suggestive of lesions acquired after operation. It is suggested that this rare condition of cardiac myxoma should be suspected in young patients with CNS symptoms or signs lacking cerebrovascular or cardiovascular risk factors and should be included in the differential diagnosis of vasculitis. With timely diagnosis and resection of the cardiac tumour the long-term prognosis can be considered improved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00833920
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    Paper (German National Licenses)
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