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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 116 (1994), S. 7341-7348 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 45 (1996), S. 435-437 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 72 (1994), S. 277-282 
    ISSN: 1432-1440
    Keywords: Idiopathic membranous glomerulonephritis ; Treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Because of the high rate of spontaneous remission, treatment of membranous nephropathy with prednisolone and chlorambucil is still controversial. The aim of this study was to give this therapy only to those patients at risk of developing renal insufficiency and to test the efficacy of a low-dose therapeutic regimen. Seventeen patients with more than 10 g protein excretion per day (mean 16.9) and/or a deterioration in renal function (mean serum creatinine, 162 μmol/l) were included. Serum total protein, serum lipids, proteinuria, serum creatinine, and blood pressure were measured, along with the diuretic and antihypertensive medication. The observation time before the start of treatment was 27 ± 27 months. Steroids were given during months 1, 3, and 5 (methylprednisolone 3 × 500 mg intravenously) prednisolone 0.5 mg/kgBW daily per os for 1 week, then tapered by 0.1 mg/kg BW/week for 1 month. Chlorambucil was given during months 2, 4, and 6 at a dose of 0.12 mg/kgBW daily. At the end of treatment proteinuria had significantly decreased (mean of all patients, 7.8 ± 1.4 g/d) in all patients. Six months after the end of treatment proteinuria was significantly lower than at baseline in 14 of 17 patients. Hypoproteinemia and hyperlipidemia had improved; diuretic and antihypertensive medication were reduced. Elevated serum creatinine decreased in 7 of 9 patients (pretreatment, 227 ± 39 μmol/1; 6 months, 176 ± 28 μmol/l). Nonresponders with respect to serum creatinine responded with respect to proteinuria. Regarding adverse effects, two patients complained of dyspepsia while taking steroids; during chlorambucil treatment two patients experienced nausea and lack of appetite, and one developed leukopenia (1600/μl). Chlorambucil was stopped and cell counts normalized 2 weeks later. We conclude that low-dose prednisolone/chlorambucil is both safe and efficient in the majority of patients with severe membranous nephropathy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford BSL : Blackwell Science
    Alimentary pharmacology & therapeutics 11 (1997), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Ranitidine hydrochloride (Zantac) is one of the most extensively studied and widely used drugs of all time. This has provided an excellent opportunity to define its safety profile. Methods: Data from 189 controlled clinical trials in which more than 26000 patients received daily doses of ranitidine for 4 weeks or more were reviewed. More than 80% of patients were treated with up to 300 mg ranitidine daily; the remaining patients received doses of up to 1200 mg daily. Eighty-seven trials were placebo controlled. Analyses of post-marketing surveillance and a database of all spontaneously reported adverse events were also evaluated. Results: Overall in the clinical trial programme adverse events were reported by 20% of those receiving ranitidine compared with 27% of those receiving placebo. The pattern of events was similar in all treatment groups with no evidence of dose-related toxicity in regimens encompassing an eightfold range of therapeutic doses. Similarly in a programme of studies designed to evaluate a dose of ranitidine of 75  mg for non-prescription (over-the-counter) use in the treatment of heartburn, ranitidine was not associated with an adverse event profile distinct from that of placebo. Analysis of spontaneously reported adverse event data allowed identification of rare idiosyncratic events. Conclusions: Review of data from a large population of controlled clinical trials with analyses of postmarketing surveillance studies and spontaneously reported adverse events confirmed the excellent safety profile of ranitidine.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology and Plant Molecular Biology 47 (1996), S. 509-540 
    ISSN: 1040-2519
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Notes: Abstract Plant gene responses to changing carbohydrate status can vary markedly. Some genes are induced, some are repressed, and others are minimally affected. As in microorganisms, sugar-sensitive plant genes are part of an ancient system of cellular adjustment to critical nutrient availability. However, in multicellular plants, sugar-regulated expression also provides a mechanism for control of resource distribution among tissues and organs. Carbohydrate depletion upregulates genes for photosynthesis, remobilization, and export, while decreasing mRNAs for storage and utilization. Abundant sugar levels exert opposite effects through a combination of gene repression and induction. Long-term changes in metabolic activity, resource partitioning, and plant form result. Sensitivity of carbohydrate-responsive gene expression to environmental and developmental signals further enhances its potential to aid acclimation. The review addresses the above from molecular to whole-plant levels and considers emerging models for sensing and transducing carbohydrate signals to responsive genes.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 54 (1992), S. 153-176 
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 6 (1995), S. 228-234 
    ISSN: 1573-482X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Second-harmonic generation and spectroscopic absorption measurements were made to study the non-linear optical and stability properties of guest/host polycarbonate thin films in which the guest chromophores were oriented by corona poling. Optimum poling conditions were achieved at temperatures less than the glass-rubber transition temperatures. Stabilized order parameters as high as 0.23 and retention of orientational order as high as 86% were found. Stable, resonance-enhanced, values of the non-linear optical coefficient d 33, for the fundamental of 1.064 Μm, were as high as 31 pm V−1. This value is over four times that predicted by a simple thermodynamic model for isotropic materials. Hydrogen bonding between the guest and polycarbonate is proposed to account for the high d 33 coefficients and long-term stability of the films.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Infection 21 (1993), S. 229-234 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Einsatz von Antibiotika bei schwerer akuter Pankreatitis (Stadium II und III) ist indiziert, da bakterielle Komplikationen häufigste Todesursache sind. Ceftazidim wurde hinsichtlich seiner Permeation in das Pankreassekret, in gesundes und chronisch entzündetes Pankreasgewebe sowie in nekrotische Areale bei schwerer Pankreatitis des Menschen untersucht. Im Pankreassekret fand sich 60 Minuten nach intravenöser Gabe von 35 mg/kg eine Spitzenkonzentration von 12,9±5,9 mg/l. Das sind 32% des korrespondierenden Serumspiegels. Die Gewebespiegel variierten, in Abhängigkeit vom Enzündungsstadium, zwischen 9 und 79% der jeweiligen Serumkonzentration. Auch in Pankreasnekrosen ließen sich nach fünftägiger Behandlung (3 × 2 g) Ceftazidimspiegel zwischen 1,8 und 6,9 mg/kg nachweisen. Somit sind in allen untersuchten Kompartimenten ausreichend hohe, antibakterielle Wirkspiegel nach Gabe von Ceftazidim in therapeutischer Dosierung nachweisbar, so daß sich aus pharmakokinetischer Sicht Ceftazidim als ein potentiell geeignetes Präparat bei Pankreatitis anbietet.
    Notes: Summary The use of antibiotics in patients with severe acute pancreatitis (stage II and III) is indicated since bacterial complications are the most common cause of death in these patients. In the present study the penetration of ceftazidime into pancreatic juice, into healthy and chronically inflamed pancreatic tissue as well as into necrotic regions in cases of severe acute pancreatitis was investigated. A peak concentration of 12.9±5.9 mg/l was found 60 min after intravenous administration of 35 mg/kg of the drug, which is 32% of the corresponding serum levels. Pancreatic tissue concentrations varied between 9 and 79% of the corresponding serum levels, depending on the stage of inflammation. After five days of antibiotic treatment with doses of 2 g t.i.d., concentrations between 1.8 and 6.9 mg/kg were detected even in pancreatic necroses. This suggests that sufficient antibacterial levels of ceftazidime were present in all pancreatic compartments analyzed following administration of common therapeutic dosages. Therefore, from a pharmacokinetic point of view, ceftazidime could be a potentially effective drug for the treatment of pancreatitis.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 47 (1991), S. 26-29 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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