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  • 1
    ISSN: 1432-1440
    Keywords: Primary aldosteronism ; Regulation of aldosteronesecretion ; Renin-angiotensin-aldosterone-system ; Sodiumloading ; Primärer Hyperaldosteronismus ; Aldosteronregulation ; Renin-Angiotensin-Aldosteronsystem ; Natrium-Belastung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über diagnostische Erfahrungen an 10 Patienten mit primärem Hyperaldosteronismus berichtet, bei denen Serumelektrolyte, Plasma-Reninaktivität und Aldosteronsekretion während einer natriumarmen Periode und unter Natriumbelastung untersucht wurden. 7 der 10 Patienten mit klinisch gesichertem Hyperaldosteronismus wurden nach der Diagnosestellung operiert, wobei sich in 3 Fällen ein singuläres Nebennierenrindenadenom fand, in 3 Fällen eine beiderseitige mikronoduläre Hyperplasie und in einem Fall eine Kombination von beiden. Die Natriumbelastung über 7 Tage mit 200–250 mval Natrium pro Tag führte bei 7 von 10 Patienten zur Senkung der Aldosteronsekretion, jedoch in keinem Fall zu einer Normalisierung derselben. Die Plasma-Reninaktivität der Patienten war während der Natriumentzugsperiode in gleichem Maße supprimiert wie während der Natriumbelastungsphase. Bei 8 von 10 Patienten wurde unter NaClreicher Ernährung ein Abfall des Serumkaliums beobachtet im Unterschied zu 76 Patienten mit essentieller Hypertonie, bei denen Natriumbelastung nicht zu Veränderungen des Serumkaliumspiegels führte.
    Notes: Summary In 10 patients with primary hyperaldosteronism, plasma electrolytes, plasma renin activity and aldosterone secretion were assessed during low and high sodium diet. 7 of 10 patients with the clinical syndrome of primary hyperaldosteronism underwent surgical exploration and treatment: in three cases, a singular adenoma was found in the adrenal cortex, three patients showed micronodular hyperplasia of the zona glomerulosa on both sides, and a combination of both was seen in one case. In 7 of 10 patients high sodium diet with 200–250 mval Na+/day for 7 days resulted in markedly lowered aldosterone secretion, but never was normal aldosterone secretion reached. The plasma renin activity of the group of patients with primary hyperaldosteronism was suppressed to a similar extent during low and during high sodium diet. High sodium diet induced a decrease in plasma potassium concentration in 8 of 10 patients which is in contrast with the findings in 76 patients with essential hypertension; in these patients the plasma potassium levels were not modified by changing the daily sodium intake.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 244 (1989), S. 113-122 
    ISSN: 1432-0711
    Keywords: CA 125 ; Immunoradiometric assay ; Cervix uteri ; Endometrium ; Fallopian tube
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The study deals with the occurrence of cancer antigen 125 (CA 125) in the normal and neoplastic uterine cervix, endometrium and fallopian tube and its applicability as a tumour marker. CA 125 concentrations were measured in 52 secretion specimens, in cytosol fractions of 97 tissue biopsies and in serum from 47 women with nonmalignant disorders and from 334 patients with carcinomas. High quantities of CA 125 (780-454860 U/ml) were detected in cervical mucus, intra-uterine and tubal fluid, exceeding those in the corresponding serum samples by factors of up to 2000. CA 125 concentrations were 9–53 fold higher in cytosol fractions of normal and neoplastic glandular epithelia of the endocervix and endometrium than in those of cervical squamous epithelia and the cervical wall. Despite similarly high antigen concentrations in normal glandular epithelia and adenocarcinomas serum levels elevated to above 65 U/ml were only found in patients with malignant tumours. The positivity rates in serum increased with tumour extent and were 0–43% for primary and 63–79% for recurrent cervical, endometrial and tubal adenocarcinomas. During long-term follow-up, CA 125 serum concentrations were concordant with the clinical course in 10 out of 11 patients with progressive carcinomas. According to these results, the release of CA 125 into the peripheral blood is apparently dependent on the infiltrative growth and the mass of the tumour rather than on, the local tissue concentrations. The clinical use of CA 125 is limited to the detection of advanced adenocarcinomas of the Müllerian duct.
    Type of Medium: Electronic Resource
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