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  • Chemistry  (7)
  • Captopril  (2)
  • Adrenal carcinomas  (1)
  • Druckfarbe
  • 2020-2022
  • 1980-1984  (4)
  • 1965-1969  (5)
  • 1955-1959  (1)
  • 2021
  • 2020
  • 2004
  • 1984  (4)
  • 1966  (2)
  • 1965  (3)
  • 1959  (1)
Publikationsart
Verlag/Herausgeber
Erscheinungszeitraum
  • 2020-2022
  • 1980-1984  (4)
  • 1965-1969  (5)
  • 1955-1959  (1)
  • 2000-2004  (1)
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 62 (1984), S. 855-858 
    ISSN: 1432-1440
    Schlagwort(e): Cushing's syndrome ; Pathogenesis of hypertension ; Renin angiotensin system ; Captopril
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary To analyse the role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome ten patients with hypercorticism (five with pituitary hypothalamic dysfunction, three with adrenal adenomas and two with adrenal carcinomas) received a single oral dose of 25 mg captopril. Mean arterial pressure was then determined at short intervals over periods of up to 240 min. Plasma renin activity (PRA) was measured immediately before the administration of captopril. Eleven patients with severe essential hypertension, who showed a comparable distribution of basal PRA values, served as a control. Patients with elevated basal PRA values (〉3 ng/ml·3 h) showed, both in the subgroup of cases with essential hypertension and in that with Cushing's syndrome, a statistically significant fall (P〈0.05−P〈0.001) in mean arterial pressure, the decrease being slightly more pronounced in essential hypertensives. On the other hand patients with normal PRA values (≦3 ng/ml·3 h) exhibited only a minor fall in mean arterial pressure reaching statistical significance (P〈0.05) only after 60 min (essential hypertension) and 180 min (Cushing's syndrome), respectively. Our results document that in patients with Cushing's syndrome the effect of captopril seems to be determined by the activity of the renin angiotensin system. Thus, in a substantial number of patients with hypercorticism, the renin angiotensin system may be an important factor in the pathogenesis of hypertension, whereas in patients with low PRA values other factors like oversecretion of mineralocorticoids may be responsible for the observed blood pressure increases.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    ISSN: 1432-1440
    Schlagwort(e): Captopril ; Kidney function ; Essential hypertension ; Renovascular hypertension ; Renal parenchymatous hypertension
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary To study long-term effects of captopril on renal function in patients with various forms of severe hypertension, serum creatinine values were monitored in 76 patients under captopril therapy over a period of up to 3 years. Three different groups were formed: (1) patients with essential hypertension (n=37); (2) patients with renovascular hypertension (n=20); (3) patients with renal parenchymatous hypertension (n=19). In each of the three groups reduction in blood pressure was accompanied by increases in serum creatinine. However, both changes were more pronounced in patients with renovascular hypertension. In this group only the rise in creatinine was statistically significant and showed a slight progression with duration of captopril treatment. Group specific analysis revealed that the increase was smaller in patients with unilateral (n=16) renovascular disease than in those with bilateral (n=4) involvement, but in the former it was still significantly higher than in patients with essential or renal parenchymatous hypertension. Separation of patients according to the underlying disease of renovascular hypertension showed that renal function deteriorated less in patients with arteriosclerotic origin (n=10) than in those with fibromuscular dysplasia (n=8). Statistical evaluation of subjects with renovascular and essential hypertension still revealed significant differences in creatinine when the patients with initial plasma renin activity (PRA) below and above 6 ng/ml·3 h were compared separately. A significant correlation (r=0.73;P〈0.05) between blood pressure reduction and creatinine changes was obtained only for patients with renovascular hypertension. Finally, in all three groups of patients creatinine changes were statistically independent from daily dosages of captopril. From these data we conclude that sustained impairment of kidney function by captopril is mainly restricted to patients with renovascular hypertension and possibly results from the combined effects of low renal perfusion pressure and interference with intrarenal regulation of glomerular filtration rate by a postulated angiotensin-II-mediated mechanism.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 62 (1984), S. 470-476 
    ISSN: 1432-1440
    Schlagwort(e): Adrenal carcinomas ; Aldosterone secretion ; Hypokalemic alkalosis ; Operation ; Chemotherapy with o,p′-DDD
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary In the present study two patients with aldosterone-producing adrenal carcinomas are reported. The clinical features were characterized by hypertension and severe hypokalemia with muscular weakness, flaccid paralysis of arms and legs, diarrhea and polyuria. In both cases excessively high plasma aldosterone levels and suppressed plasma renin activity were found. In contrast to most other cases with aldosterone-secreting tumours plasma cortisol, urinary free cortisol excretion, 17-hydroxy- and 17-ketosteroids were in the normal range. There was no clinical evidence of oversecretion of sex hormones. After adrenalectomy blood pressure and serum potassium normalized and the clinical symptoms disappeared. Plasma aldosterone and urinary aldosterone secretion returned to normal, while plasma renin activity remained low. Three and a half and 6 months later primary aldosteronism and the associated clinical symptoms reappeared due to hormonally active metastases. After introducing the antitumour drug o,p′-DDD in patient 1 aldosterone secretion normalized and the clinical status of the patient markedly improved. However, 10 months after diagnosis the patient died due to a haemorrhage from a liver metastasis. In patient 2 tumour-invaded regional lymph nodes were surgically removed with only minor changes in the hormone pattern.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 1981-1987 
    ISSN: 0009-2940
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Tris(dimethylamino)-phosphan addiert Halogene (Cl2, Br2, J2) zu Tris(dimethylamino)-halogeno-phosphonium-halogeniden. Einige ihrer Eigenschaften werden beschrieben.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 71 (1959), S. 723-726 
    ISSN: 0044-8249
    Schlagwort(e): Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Mit einer neu entwickelten, 20-stufigen Mikro-Zonenschmelz-Apparatur wurde systematisch - vor allem unter Berücksichtigung des für das Zonenschmelzen wichtigen Schmelzdiagrammes - das „Zonentrennen“ von Mischkristall-Systemen homologer Fettalkohole studiert. Ein Gemisch von 20% Eikosanol und 80% Hexakosanol konnte präparativ getrennt werden; aus 28,5 mg des Gemisches wurden 9,6 mg reines Hexakosanol erhalten.
    Zusätzliches Material: 11 Ill.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Stapelogenin, C21H30O4, shows a double bond and two hydroxyl groups which can be acetylated. On the grounds of UV.-, IR.-, and NMR-spectra as well as mass spectra, the probable structure is that of a 3β, 12β-dihydroxy-(18, 20β), (14β, 20α)-diepoxy-Δ5-pregnene (1). The exact position of the hydroxyl group, assumed to be 12β, is particularly unsure, as it could also be situated 11α- or 12α-position.
    Zusätzliches Material: 16 Ill.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 49 (1966), S. 946-964 
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Das aus Alstonia macrophylla Wall. (A pocynaceae) isolierte «dimere» Indolalkaloid Macralstonin lässt sich durch verdünnte Salzsäure in die Villalstonin-Spaltbase Macrolin (8) und das ebenfalls aus Alstonia macrophylla isolierte Alkaloid Alstophyllin (2) spalten. Daraus und auf Grund spektroskopischer Untersuchungen (UV.-, IR.-, NMR.-, Massenspektren) wird für Macralstonin die Struktur 1 abgeleitet.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 48 (1965), S. 729-750 
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: La structure chimique, ainsi que la configuration de deux phytotoxines isolées d'Aspergillus flavus oryzae: les aspergillomarasmines A (XXVI) et B (VII) (cette dernière étant identique à l'acide lycomarasmique) sont établies.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 48 (1965), S. 674-689 
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Es wurde das Verhalten quartärer Alkaloidsalze im Massenspektrometer untersucht. Dabei fanden sich drei prinzipiell verschiedene Verhaltensweisen: 1Angriff des Anions an der N(b)-Methylgruppe unter Bildung des tertiären Amins (Demethylierungsbase)und des Methylhalogenids.2Thermischer HOFMANN-Abbau unter Bildung eines ungesättigten Amins (HOFMANN-Base) und des Halogenwasserstoffs.3Angriff des Anions an einem der drei anderen N(b)-Substituenten unter Bildung eines tertiären Amins und Eintritt des Halogenatoms in dieses (Substitution).
    Zusätzliches Material: 11 Ill.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 56 (1984), S. 62-62 
    ISSN: 0009-286X
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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