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  • 1
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Alzheimer-Krankheit ; Tau-Protein ; Liquor cerebrospinalis ; Früherkennung ; Key words Alzheimer’s disease ; Protein tau ; Cerebrospinal fluid ; Early recognition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In 40 patients with Alzheimer’s disease (AD), in 5 patients with non-AD dementia and in 36 cognitively normal controls the concentration of protein tau was determined in the cerebrospinal fluid (CSF). Of the AD patients, 19 were very mildly demented (MMSE score from 25 to 28). Even in these patients, CSF tau was significantly more elevated than in controls. In the non-AD patients protein tau was less increased. Among the AD patients there was no association between CSF tau and severity of cognitive impairment or deficit in cerebral blood flow, determined by SPECT. Our findings suggest that CSF tau may be elevated even at the predementia stage of AD and be useful as a biological marker for the early recognition of the disease.
    Notes: Zusammenfassung Bei 40 Alzheimer-Patienten, 5 Patienten mit Demenzen anderer Ursache und 36 kognitiv unauffälligen Kontrollpersonen wurde das Tau-Protein im Liquor cerebrospinalis bestimmt. Von den Alzheimer-Patienten befanden sich 19 in einem sehr leichtgradigen Stadium der Krankheit (Summenwert im Mini-Mental-State-Test 25 bis 28 Punkte). Auch bei diesen wurde gegenüber den Kontrollpersonen eine signifikante Erhöhung von Tau gemessen. Eine weniger ausgeprägte Erhöhung von Tau zeigte sich bei den Patienten mit anderen Demenzen. Bei den Alzheimer-Patienten fand sich kein quantitativer Zusammenhang zwischen der Erhöhung von Tau und dem Schweregrad der Demenz oder dem zerebralen Perfusionsdefizit, bestimmt mit SPECT. Die Ergebnisse sind ein Hinweis, daß Tau auch im prädementiellen Stadium der Alzheimer-Krankheit erhöht sein könnte und sich als biologischer Indikator für die Früherkennung eignet.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1619-7089
    Keywords: Iodine-123 metaiodobenzylguanidine single photon emission tomography ; Arrhythmogenic right ventricular disease ; Cardiac sympathetic nerve system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Arrhythmogenic right ventricular disease (ARVD) is a disease of unknown origin that primarily affects the right ventricle and is characterized by ventricular tachyarrhythmias which may lead to syncope and even, though rarely, sudden cardiac death. In 25 patients with ARVD, sympathetic innervation of the left ventricle was assessed by iodine-123 metaiodobenzylguanidine single photon emission tomography (1231-MIBG SPET). In addition, thallium-201 SPET was performed. The diagnosis of ARVD was made by an electrophysiological study and right and left heart catheterization including right ventricular endomyocardial biopsy. Ischaemic heart disease was excluded by coronary angiography. A group of seven patients without any evidence of heart disease served as a control group. Twenty-two of the 25 patients showed reduced uptake of 123I-MIBG. The abnormal areas were located predominantly in posterior and posteroseptal segments of the heart. No focus of increased 123I-MIBG activity could be demonstrated. No patient had signs of left ventricular involvement on left ventricular angiography. In contrast to the results of the 123I-MIBG SPET, those of 201TI SPET were normal in 16 patients. The remaining nine patients showed areas of slight hypoperfusion not correlated with the reduced 123I-MIBG uptake. 123I-MIBG scintigraphy allows detection of left ventricular adrenergic dysinnervation in ARVD patients without morphological or functional abnormalities of the left ventricle.
    Type of Medium: Electronic Resource
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