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  • 1
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 102 (1980), S. 2791-2797 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 105 (1983), S. 2905-2907 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1440
    Keywords: Gold ; D-Pencillamine ; Rheumatoid arthritis ; Gold ; D-Penicillamin ; chronische Polyarthritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In einer prospektiven klinischen Studie wurden im paarweisen Vergleich Gold und D-Penicillamin (D-Pen.) bezüglich Wirksamkeit und Nebenwirkungsrate bei Behandlung der chronischen Polyarthritis (c.P.) untersucht. Mit Hilfe einer entsprechend angelegten Randomliste wurden 70 Patienten nach festgelegten Kriterien zu Paaren geordnet und alternierend mit D-Pen. oder Gold behandelt. Der klinische Befund (Krankheitsstadium nach Steinbrocker, Lansbury-Gelenkindex, Aktivitätsstadium nach Voit und Gamp) und die Laborparameter entzündlicher Aktivität wurden vierteljährlich, der Röntgenbefund jährlich dokumentiert. Die Beobachtungszeit betrug mindestens zwölf Monate. Bei Therapieunterbrechung (Nebenwirkungen, fehlende Compliance oder Wirkungslosigkeit) wurde der freiwerdende Platz in der Randomliste mit dem nächsten passenden Patienten wieder besetzt. Von insgesamt 147 erfaßten Patienten wurde die Behandlung bei 32 vorzeitig wegen Nebenwirkungen, bei 3 wegen ungenügender Wirksamkeit unterbrochen. 42 Patienten entzogen sich den erforderlichen Kontrollen. Der klinische Verlauf war 16mal unter Gold und 6mal unter D-Pen. besser, bei 13 Paaren war ein Unterschied im klinischen Verlauf nicht festzustellen (p=0,05). Bei isolierter Bertrachtung der Laborparameter scheint die Entwicklung unter D-Pen. besser (p〉0,05), eine röntgenologisch feststellbare Progredienz der knöchernen Destruktionen scheint unter Gold seltener (p〉0,05). Auch der paarunabhängige Vergleich des therapeutischen Effektes zeigt Gold überlegen. Anzahl und Ausmaß der erzielten Remissionen sind größer. Das Vorhandensein von Rheumafaktoren beeinflußt das therapeutische Ergebnis nicht. Unter beiden Pharmaka ist in vergleichbarer Frequenz mit Nebenwirkungen zu rechnen (15/44 bei D-Pen., 17/52 bei Gold). Hämatologische und nephrologische Komplikationen sind aber unter D-Pen. häufiger, wogegen die weitaus häufigste Komplikation unter Gold ein Exanthem bzw. Enanthem ist. Das Ergebnis der Studie spricht insgesamt für eine Überlegenheit von Gold gegenüber D-Pen. bei der Basisbehandlung der c.P.
    Notes: Summary A prospective clinical trial in couples was done to compare effectiveness and toxicity of gold and D-penicillamine (D-Pen.) in treatment of rheumatoid arthritis (r.A.). Respecting defined criteria 70 patients were put to couples according to a random list and were treated with gold or D-Pen. alternatively. Physical and laboratory indices of inflammatory activity were checked every 3 months, X-rays every 12 months. Dropouts (side effects, missing compliance, uneffectiveness) were replaced by the nextcoming fitting patient. Thirty-two of 147 totally recruited patients stopped treatment because of side effects, three because of unsatisfying efficiency. Forty-two patients shuned the necessary controls. The clinical course was better in 16 couples with gold, only in sex couples with D-Pen. Thirteen pairs showed no difference in this respect (p=0.05). Looking to the laboratory parameters separately D-Pen. tends to be superior (p〉0.05), radiografic deterioration seems to be more seldom with gold (p〉0.05). Side effects occur with both drugs in comparable frequency (15/44 with D-Pen., 17/52 with gold), but the complications with D-Pen. are more serious. Altogether this trial shows gold superior to D-Pen. in the long-term treatment of r.A.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 42 (1981), S. 212-214 
    ISSN: 1432-1106
    Keywords: Pretrigeminal nucleus ; Frog ; Release calling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary After injection of 14C-2-deoxy-D-glucose, some leopard frogs were induced to release call repeatedly, while others were used as silent controls. Autoradiograms of brains of many of the calling frogs, but none of the silent ones, showed heavy labeling of the pretrigeminal nucleus. This supports the hypothesis that this nucleus is involved in release calling.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 39 (1980), S. 235-237 
    ISSN: 1432-1106
    Keywords: Treefrog ; Catecholamine ; Isthmotrigeminal tegmentum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neurons that take up 3H-noradrenaline were detected, by autoradiography, around the ventral tip of the isthmic nucleus in treefrogs. No uptake was detected in the adjacent pretrigeminal nucleus, suggesting that this is not homologous to the locus coeruleus.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 45 (1982), S. 447-450 
    ISSN: 1432-1106
    Keywords: Pretrigeminal nucleus ; Sexual dimorphism ; Toads ; Anurans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The anuran (toad and frog) pretrigeminal nucleus is probably involved in the production of vocalizations, including the male mating call. This nucleus is especially obvious when stained by the succinic dehydrogenase method. In the American toad, a striking sexual dimorphism is shown by such staining. The male nucleus contains numerous, large cells that stain intensely. Such cells are smaller and infrequent in females.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 38 (1980), S. 405-417 
    ISSN: 1432-1106
    Keywords: Calcium ; Mitochondria ; Cholinergic nerve ending ; Torpedo ; Transmitter release
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The calcium content of mitochondria isolated from the Torpedo electric organ was determined by atomic absorption spectroscopy. The mitochondrial fraction was found to contain 830 ng-atom Ca/mg protein. For comparison a fraction of isolated nerve endings contained 250 ng-atom Ca/mg protein. When tissue was continuously stimulated at a frequency of 5 Hz via the electromotor nerves, the Ca content of the mitochondrial fraction which is likely to contain both pre- and postsynaptic mitochondria was reduced proportionally to the decrease in transmitter content of the isolated nerve terminal fraction. After 5,000 pulses, the mitochondrial fraction had lost 80% of its Ca contents. When tissue was stimulated after previous perfusion with d-tubocurarine and blockade of electrical response the same number of pulses caused only a loss of 20–40% in the Ca content of the mitochondrial fraction. Release of transmitter was not affected by d-tubocurarine. The results suggest that repetitive stimulation in the absence of postsynaptic receptor blockade causes loss of Ca from both nerve terminal mitochondria and mitochondria of the myotube-derived electrocytes. In the presence of d-tubocurarine Ca is lost from presynaptic mitochondria only.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 38 (1980), S. 419-424 
    ISSN: 1432-1106
    Keywords: Mitochondria ; Calcium staining ; Cholinergic nerve ending ; Torpedo ; Transmitter release
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The fine structure of the Torpedo electric organ was investigated during different functional states using fixation media with elevated calcium concentrations. When electric tissue was stimulated (5,000 pulses, 5 Hz) and subsequently fixed in an s-collidine buffered aldehyde fixative containing 5 mM CaCl2 mitochondria in both nerve terminals and postsynaptic electroplaque cells showed electron-dense deposits. When tissue blocks were stimulated in the presence of d-tubocurarine (250 μM) which blocked electrical response deposits were restricted to presynaptic mitochondria. Electron-dense deposits were never observed in unstimulated tissue. The observations suggest that after stimulation mitochondria have an increased calcium binding capacity. In conjunction with previous biochemical findings (Schmidt and Zimmermann, 1980), we suggest that this increased binding capacity is due to a previous stimulation induced loss of calcium from activated mitochondria.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Data obtained for acetaldehyde analysis of yogurt and wine by direct 2,4-dinitrophenylhydrazine (DNPH) derivatization and extraction are compared to those obtained by distillation and DNPH derivatization. Separation and analysis of acetaldehyde 2,4dinitrophenylhydrazone (DNP) was by reverse phase high performance liquid chromatography (HPLC). Higher precision was obtained with the direct derivatization extraction technique than for the distillation derivatization technique. Data obtained by the direct derivatization extraction technique for acetaldehyde in commercial yogurt samples had less viriability than those for wine.
    Type of Medium: Electronic Resource
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