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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 44 (1966), S. 727-728 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The acute effect of intraveneously applied L-Dopa was examined in 10 inhibited depressives and 4 self-applications. The depressed patients showed a distinct activation effect after 25–50 mg L-Dopa in 8 cases. This effect was characterized by a loosening of the facial mimic, a more natural mobility and a strong need for communication. For the healthy subject, in contrast, activity was first observed after a 100 mg L-Dopa dosage. The findings are discussed in regard to the suspected Catecholamin deficiency in inhibited depressives.
    Notes: Zusammenfassung Die akute Wirkung von i. v. verabfolgtem L-Dopa wurde in zehn Versuchen an gehemmten Depressionen und in vier Selbstversuchen untersucht. Bei den depressiven Patienten zeigte sich in acht Fällen schon nach 25 bis 50 mg L-Dopa eine deutliche antriebssteigernde Wirkung, die sich in einer Auflockerung der Mimik, leichterem Gehen und einem starken Mitteilungsbedürfnis äußerte. Bei der gesunden Versuchsperson dagegen wurde erst nach 100 mg L-Dopa eine Aktivierung beobachtet. Die Befunde werden im Zusammenhang mit dem bei gehemmten Depressionen vermuteten Catecholamin-Mangel diskutiert.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 26 (1984), S. 727-734 
    ISSN: 1432-1041
    Keywords: adverse drug reactions ; psychotropic drugs ; intensive drug monitoring ; organized spontaneous reporting ; psychiatric patients ; adverse reaction frequency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary A system for monitoring adverse drug reactions (ADR) in psychiatric inpatients was introduced in psychiatric hospitals in the FRG in May 1979. It consists of intensive drug monitoring (IDM) and a so-called “organized spontaneous reporting system” (OSR). ADR are rated separately according to impact on therapy and probability of causal relationship. With IDM all ADR (Grades I–III) are assessed in a randomly selected sample of inpatients. With OSR only ADR leading to discontinuation of the drugs in question (=ADR Grade III) are assessed. In 406 drug-treated inpatients monitored by IDM in the psychiatric hospitals of Berlin and Munich from May 1979 to Dec. 1981, ADR were observed in 60,4%. In 15% of IDM-patients ADR led to discontinuation of the drugs in question; with OSR the relative frequency of these Grade III ADR was 9,0% in 5096 patients monitored throughout the entire period. Life-threatening events were observed in 1,2% of patients undergoing IDM as well as 1.2% of those undergoing OSR. The most frequently observed ADR by IDM were sedation, extrapyramidal signs, disturbances of the autonomic nervous system and increase in transaminases, and by OSR Parkinsonism, akathisia, sedation, toxic delirium and increased transaminases. The relative frequency of Grade III ADR was similar for neuroleptics and antidepressants (5,4% and 5,3% in OSR); a very low relative frequency of ADR Grade III was found for tranquilizers and hypnotics (0,7% and 0,2%). Methodological aspects of this drug monitoring system are discussed in the light of current literature.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 32 (1987), S. 43-51 
    ISSN: 1432-1041
    Keywords: benzodiazepines ; psychotropic drug intake ; long-term use ; epidemiological study ; multiple logistic regression analysis ; drug interaction ; sex differences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Psychotropic drug intake by a random sample of citizens of the city of Munich aged 30–69 years has been assessed. A 1-week prevalence of 9.3% for all psychotropic drug users was found, benzodiazepines accounting for approximately two-thirds (6.6%) of the users. Two-thirds of drug users were women. Drug use in both sexes increased with age. The doses of benzodiazepines prescribed in most cases were less than 10 mg diazepam equivalent per day. Intake of benzodiazepines in combination with analgesics or alcohol (⩾40 g/day) did not appear to represent a major problem. Multiple logistic regression analysis showed that the number of chronic diseases was the strongest predictor of benzodiazepine intake in men, whereas stress and age determined intake in women. Long-term use seemed to be relatively rare at 11% of all benzodiazepine users, so it was not considered to be a severe public health problem.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract : Two-dimensional polyacrylamide gel electrophoresis of CSF has been used in the diagnosis of Creutzfeldt-Jakob disease (CJD). One of the two diagnostic protein spots was identified as isoform(s) of the 14-3-3 family of abundant brain proteins. This has led to the development of one-dimensional 14-3-3 sodium dodecyl sulfate polyacrylamide gel electrophoresis immunoblot, which is currently used to support the diagnosis of CJD. In the present study employing western blot analysis, we have identified the panel of 14-3-3 isoforms that appear in the CSF of 10 patients with CJD compared with 10 patients with other dementias. The results clearly show that the 14-3-3 isoforms β, γ, ε, and η are present in the CSF of patients with CJD and can be used to differentiate other dementias. 14-3-3η also gave a baseline signal in all patients with other dementias, including six patients with Alzheimer's disease. The presence of 14-3-3η in the CSF of a patient with herpes simplex encephalitis was particularly noteworthy. This study has determined that isoform-specific 14-3-3 antibodies against β, γ, and ε should be considered for the neurochemical differentiation of CJD from other neurodegenerative diseases.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Human lumbar CSF patterns of Aβ peptides were analysed by urea-based β-amyloid sodium dodecyl sulphate polyacrylamide gel electrophoresis with western immunoblot (Aβ-SDS–PAGE/immunoblot). A highly conserved pattern of carboxyterminally truncated Aβ1–37/38/39 was found in addition to Aβ1–40 and Aβ1–42. Remarkably, Aβ1–38 was present at a higher concentration than Aβ1–42, being the second prominent Aβ peptide species in CSF. Patients with Alzheimer's disease (AD, n = 12) and patients with chronic inflammatory CNS disease (CID, n = 10) were differentiated by unique CSF Aβ peptide patterns from patients with other neuropsychiatric diseases (OND, n = 37). This became evident only when we investigated the amount of Aβ peptides relative to their total Aβ peptide concentration (Aβ1–x%, fractional Aβ peptide pattern), which may reflect disease-specific γ-secretase activities. Remarkably, patients with AD and CID shared elevated Aβ1–38% values, whereas otherwise the patterns were distinct, allowing separation of AD from CID or OND patients without overlap. The presence of one or two ApoE ε4 alleles resulted in an overall reduction of CSF Aβ peptides, which was pronounced for Aβ1–42. The severity of dementia was significantly correlated to the fractional Aβ peptide pattern but not to the absolute Aβ peptide concentrations.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Infection 19 (1991), S. S29 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary This review concerns central nervous system side effects of different antibacterial agents. Special attention is focussed on the new quinolone derivatives, penicillins and cephalosporins. As far as possible, mechanisms of action are discussed as well as therapeutic regimens.
    Notes: Zusammenfassung Diese Übersichtsarbeit beschäftigt sich mit den zentralnervösen Nebenwirkungen verschiedener Antibiotika. Besondere Aufmerksamkeit wird dabei den neuen Chinolonderivaten, den Penicillinen und Cephalosporinen gewidmet. Wirkmechanismen werden — soweit sie bisher geklärt werden konnten — diskutiert, ebenso wie therapeutische Möglichkeiten.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 103 (1996), S. 355-361 
    ISSN: 1435-1463
    Keywords: Nocturnal myoclonus syndrome ; NMS ; lamotrigine ; dopamine ; glutamate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In previous investigations we found an increase of D2 dopamine receptors in the striatum of patients with nocturnal myoclonus syndrome (NMS) after treatment with dopamimetics. Under the hypothesis, that, according to animal experiments, the glutamatergic system could be involved in this atypical dopaminergic up-regulation in NMS. The glutamate release inhibitor lamotrigine was tested in up to now two NMS patients. The results and the success of this approach and its implications are discussed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 107 (2000), S. 1361-1366 
    ISSN: 1435-1463
    Keywords: Keywords: Genetic, association, affective disorders, angiotensin converting enzyme, insertion/deletion polymorphism, mood disorders.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. The insertion/deletion polymorphism of the gene of angiotensin-converting enzyme (ACE) was investigated in a case-control study including 169 patients with suffering from either bipolar disorder type I or unipolar recurrent major depression (DSM-IV) and 169 healthy controls. No significant association was found with bipolar disorder type I or unipolar recurrent depression and the polymorphism of the ACE gene. A previously reported genetic association (Arinami et al., 1996) was not confirmed by the present study.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1435-1463
    Keywords: 3,4 Methylenedioxymethamphetamine ; degeneration ; ecstasy ; MDMA ; neurotoxicity ; serotonin ; substituted amphetamines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The massive and prolonged stimulation of serotonin (5-HT)-release and the increased dopaminergic activity are responsible for the acute psychomimetic and psychostimulatory effects of 3,4-methylenedioxy-methamphetamine (MDMA, “ecstasy”) and its congeners. In vulnerable subjects, at high doses or repeated use, and under certain unfavorable conditions (crowding, high ambient temperature), severe, in some cases fatal, averse systemic reactions (hyperthermia, serotonin-syndrome) may occur during the first few hours. Animal experiments revealed the existence of similar differences in vulnerability and similar dose- and context-related influences on a similar sequence of acute responses. The severity of these acute systemic responses is closely related to the severity of the long-term damage to 5-HT axon terminals caused by the administration of substituted amphetamines. Attempts to identify the mechanisms involved in this selective degeneration of 5-HT presynapses brought to light a multitude of different factors and conditions which either attenuate or potentiate the loss of 5-HT terminals caused by MDMA and related amphetamine derivatives. These puzzling observations suggest that the degeneration of 5-HT presynapses represents only the final step in a sequence of events which compromize the ability of 5-HT terminals to maintain their functional and structural integrity. The common feature of all these events is a profound wastage of energy. Substituted amphetamines selectively tax energy metabolism in 5-HT presynapses through their ability to exchange with 5-HT and to dissipate transmembrane ion gradients. The active carrier systems in the vesicular and presynaptic membrane operate at a permanently activated state. The resulting energy deficit can no longer adequately restored by the 5-HT presynapses when their availability of substrates for ATP production is additionally reduced by the hyperthermic and other energy consuming reactions which are elicited by the systemic administration of substituted amphetamines. The exhaustion of energy in 5-HT nerve terminals compromizes all energy-requiring endogenous mechanisms involved in the regulation of transmembrane-ion exchange, internal Ca++-homeostasis, prevention of oxidative stress, detoxification, and repair. Above a critical threshold the failure of these self-protective mechanisms will lead to the degeneration of the 5-HT axon terminals. Based on the role of 5-HT as a global modulatory transmitter-system involved in the stabilization and integration of impulse flow between distributed multifocal neuronal networks, the partial loss of 5-HT presynapses must be expected to impair the ability of these networks to maintain the integrity of signal flow pattern, and increase the likelihood of switching to unstable information processing. Behavioral responding may therefore become more dominated by activities generated in individual networks, and hitherto “buffered” personality traits and predisposition may become manifested as defined psychiatric syndromes in certain predisposed subjects.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1435-1463
    Keywords: Keywords: Restless legs syndrome ; RLS ; nocturnal myoclonus syndrome ; NMS ; pergolide ; longterm treatment.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. Pergolide has proven significantly superior to L-dopa plus peripheral decarboxylase inhibitor in short-term therapy of RLS/NMS. We now first present long-term follow-up sleep data showing its lastingly good effects after averagely 517 treatment days.
    Type of Medium: Electronic Resource
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