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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 16 (1976), S. 177-188 
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 407 (1983), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Psychopharmacology 84 (1984), S. 323-330 
    ISSN: 1432-2072
    Keywords: Open field ; Residential maze ; Cyclazocine ; Locomotor behavior ; Stereotype patterns
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Changes in behavior of rats caused by different doses of cyclazocine (0.2, 0.4, 0.75, 1.5, and 3.0 mg/kg) were detected by two different methods: the open field and the residential maze. In the residential maze the locomotion was recorded automatically, whereas in the open field the measurements were made by direct observation. In the maze low doses of cyclazocine (〈1.5 mg/kg) caused a marked change in the time course of locomotion and local activity at the beginning of the 23-h sessions. The duration of this effect was dose-dependent, between 2 and 4 h. The highest dose (3 mg/kg) induced a strong stimulation of locomotor activity which lasted about 1 h, and stereotyped patterns, i.e., long periods of unidirectional runs through circular alleys. In the open field rearing and grooming behavior proved to be the most sensitive parameters. The frequency of both was reduced at a dose of 0.4 mg/kg. Locomotion showed the highest values at 1.5 mg/kg and decreased with the highest dose (3 mg/kg) to control levels. The study demonstrated that the principal changes induced by cyclazocine were of a qualitative nature, characterized by monotonous locomotor activity. The computerized residential maze procedure proved to be well suited to detect and quantify this behavioral change.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 34 (1978), S. 1609-1610 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Stimulation of aminopyrine demethylation induced in rats by oral or i.p. administration of phenobarbital was partially inhibited in animals receiving daily treatments of 2×200 mg/kg gum Arabic p.o.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 5 (1975), S. 383-393 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Daunomycin, adriamycin and 5 semisynthetic anthracycline antibiotics inhibited oxygen consumption or ATP production of rat heart mitochondria in vitro. The no-effect levels varied depending on the substrate used and ranged from 1 nmole to 800 nmole per mg mitochondrial protein. Mitochondrial functions were also studied in hearts of rats treated with repeated i.p. injections of the 7 antibiotics. Decrease in oxygen consumption without change in ATP production was observed with adriamycin and NSC-149584. Daunomycin, NSC-164011, NSC-143496 NSC-143114 affected primarily ATP production. The most potent compounds were daunomycin and adriamycin which damaged mitochondrial funciton at cumultive doses of approximately 10mg/kg. ECGs were monitored in groups of equally treated rats. Cardiotoxicity manifested itself by progressive widening of the QRS complex often followed by the development of a S-wave trough. The most toxic compounds also induced intraventricular block, bradycardia and heart failure. The development of the ECG changes showed a good correlation with the impairment of mitochondiral function.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 7 (1977), S. 341-346 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Chronic oral administration of imipramine to rats caused characteristic changes of the electrocardiogram (ECG), i.e. prolongation of the PR interval, widening of the QRS complex, and increase in T-wave voltage. The cardiotoxic anthracycline antibiotic adriamycin induced dose-dependent widening of the QRS complex. This effect on intraventricular conduction was not enhanced in rats receiving both drugs. The high adriamycin dose (5×4 mg/kg) abolished imipramine-induced prolongation of the PR interval and T-wave elevation. This was not seen with the low adriamycin dose (20×1 mg/kg). Imipramine prolonged survival time of rats treated with toxic doses of adriamycin, but enhanced growth retardation in animals receiving the low adriamycin dose. Chronic treatment with increasing doses of strophanthin induced significant flattening of the T wave in rats with and without imipramine therapy, but did not influence the changes of the ECG or body weight gain caused by imipramine. It is concluded that the combined use of imipramine and adriamycin or strophanthin did not lead to a serious enhancement of the toxicity of the tricyclic antidepressant.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 7 (1977), S. 163-170 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Rats fed a diet containing a high percentage of butter, cholesterol, cholic acid and propyl thiouracil (HFD) showed weight loss and developed hyperlipidemia, marked fatty in filtration of the liver, moderate elevation of SGPT, degenerative changes of the heart muscle, bradycardia, alterations of the QRS complex in the electrocardiogram, and initial hemoconcentration followed by moderate anemia. Treatment with adriamycin (18×1 mg/kg i.p.) resulted in significant augmentation of the cardiotoxic effects of this drug demonstrated by electrocardiographic measurements and myocardial histopathology. Adriamycin-induced atrophy of the lymphatic tissue was seen only in rats fed HFD and not in animals receiving ground chow. Adriamycin levels in the heart after single i.p. injection were higher in rats receiving HFD. This effect was present already after 10 days on HFD. At this time histopathological liver changes were present and SGPT was elevated. It is concluded that the increase in adriamycin toxicity is, at least in part, due to diminished excretion by the liver. These experimental findings are in accordance with clinical observations which have identified liver disease as one of the important risk factors for the development of adriamycin cardiomyopathy.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 31 (1975), S. 1058-1060 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die kardiotoxische Wirkung von Adriamycin wurde im Elektrokardiogramm von Ratten nach wiederholten i.p. Injektionen nachgewiesen. Bei gleichzeitiger Behandlung mit Acetyldaunomycin waren die elektrokardiographischen Veränderungen signifikant geringer. Die letale Wirkung grosser Adriamycindosen wurde durch Acetyldaunomycin ebenfalls abgeschwächt. Dagegen hatte Acetyldaunomycin keinen Einfluss auf die durch Adriamycin erzeugte Leukopenie.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 9 (1976), S. 333-338 
    ISSN: 1432-1041
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0738
    Keywords: Chlorphentermine ; RMI 10.393 ; Ro 4-4318 ; Drug-induced lipidosis ; Foam cell reaction ; Palmitate-1-14C incorporation and turnover ; Lung phospholipid metabolism ; Chlorphentermin ; RMI 10.393 ; Ro 4-4318 ; Arzneimittelbedingte Lipidose ; Schaumzellreaktion ; Palmitat-1-14C-Einbau und Turnover ; Phospholipidmetabolismus der Lunge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An Ratten wurden die Wirkung von 3 Lipidose-erzeugenden Medikamenten auf den Einbau und den Turnover von Palmitinsäure-1-14C in Phospholipiden der Lunge untersucht. Nach 1 Dosis Chlorphentermin und RMI 10.393 war der Einbau von Palmitinsäure-1-14C in die Lungenphospholipide leicht reduziert. Eine Dosis Ro 4-4318 dagegen führte zu stark vermindertem Palmitateinbau. Acht Dosen Chlorphentermin und RMI 10.393 hemmten den Einbau von Palmitinsäure in die Lungenphospholipide deutlich. Acht Dosen Ro 4-4318 dagegen steigerten den Einbau von Palmitat in die einzelnen Phospholipidfraktionen. Dreißig Stunden nach der letzten von 3 Palmitat-Injektionen war der Turnover der meisten Phospholipide in Chlorphentermin und RMI 10.393-behandelten Ratten niedriger als in Kontrollratten. Im Gegensatz dazu erhöhte Ro 4-4318 den Turnover der meisten Lungenphospholipide. Nach 54 Std hatte sich der Phospholipid-Turnover in den Rattenlungen weitgehend normalisiert. Unsere Untersuchungen zeigten, daß die Phospholipidspeicherung, die durch Chlorphentermin und RMI 10.393 ausgelöst wird, auf einer Hemmung des Phospholipidabbaus zurückgeführt werden kann. Dagegen beruht die Phospholipidose, die durch Ro 4-4318 induziert wird, auf einer Aktivierung der Phospholipidsynthese.
    Notes: Abstract The effects of 3 lipidosis-inducing drugs on the incorporation and turnover of palmitic acid-1-14C in lung phospholipids was studied. In rats treated with 1 dose of chlorphentermine or RMI 10.393, the incorporation of palmitate-1-14C into most lung phospholipid fractions was moderately decreased, but markedly lowered after 1 dose of Ro 4-4318. Eight doses of chlorphentermine and RMI 10.393 strongly inhibited the incorporation of palmitate-1-14C into lung phospholipids, whereas with 8 doses of Ro 4-4318 the incorporation was highly increased. Thirty hours after the last of 3 injections of the labeled palmitic acid the turnover of most lung phospholipids was considerably lower in chlorphentermine and RMI 10.393-treated rats than in controls. Ro 4-4318, however, induced a highly increased turnover of most phospholipids. After 54 h, this effect had practically disappeared. Our studies showed that phospholipid storage after treatment with chlorphentermine and RMI 10.393 is mainly due to decreased degradation of phospholipids, whereas increased synthesis accounts for the effect of Ro 4-4318.
    Type of Medium: Electronic Resource
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