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  • pharmacokinetics  (295)
  • Immunohistochemistry  (68)
  • Springer  (363)
  • American Meteorological Society
  • Blackwell Publishing Ltd
  • Cambridge University Press
  • Springer Nature
  • Wiley
  • 1985-1989  (324)
  • 1975-1979  (31)
  • 1970-1974  (8)
  • 1960-1964
  • 1950-1954
  • 1988  (158)
  • 1986  (166)
  • 1975  (31)
  • 1972  (8)
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  • 1950
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  • 1985-1989  (324)
  • 1975-1979  (31)
  • 1970-1974  (8)
  • 1960-1964
  • 1950-1954
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  • 1
    Electronic Resource
    Electronic Resource
    The lymphatic route. 1) Albumin and hyaluronidase modify the normal distribution of interferon in lymph and plasma (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 432-433 
    Details
    ISSN: 1420-9071
    Keywords: Interferon ; immunomodulator ; catabolism ; pharmacokinetics ; administration routes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary When human recombinant interferon-α2 diluted in saline was injected s.c. into rabbits, the total amount recovered in thoracic lymph was less than 0.4%. Recoveries increased from 2- to 8-fold if interferon was injected in 4% albumin or with hyaluronidase, respectively. Albumin added to interferon acts as an interstitial fluid expander, thus favoring interferon absorption through lymphatics rather than blood capillaries. This strategy may increase the therapeutic index of interferon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02118644
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  • 2
    Electronic Resource
    Electronic Resource
    Immunohistochemical detection of subunit A(M) of lactate dehydrogenase in tissues of the developing chick (1986)
    Springer
    Development genes and evolution 195 (1986), S. 409-416 
    Details
    ISSN: 1432-041X
    Keywords: Immunohistochemistry ; Tissue distribution of LDH5 ; Developing chicken embryos
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The distribution of A(M) subunits of lactate dehydrogenase (mainly LDH5) in developing muscle, heart, liver, lung, kidney and cartilage tissue of chicken embryos was examined by the indirect fluorescent antibody technique. Antibodies against porcine LDH5, purified by affinity chromatography, were used for this purpose. In special areas of newly formed myofibrils in somitic myoblasts fluorescence was already detected after 4 days of incubation, and located at the same place in muscle tissue of all advanced developmental stages examined. During the myotube stage of muscle development staining was also located in the peripheral thickened cytoplasma of the myotubes. The myocardium did not exhibit any fluorescent staining in the developmental stages examined. Endocardium, epicardium and pericardium, however, were fluorescent in young developmental stages. The liver showed fluorescence in 5- to 8-day embryos mainly in the endothelial cells of the blood sinusoids. In 9- to 12-day embryos the bile ducts became fluorescent. In lungs after 9- to 12-day development the epithelium and the surrounding tissues of bronchi exhibited strong immunofluorescence. The mesonephros exhibited faint granular fluorescence in tubule-forming cells and their membranes after 4–9 days of incubation. Advanced developmental stages only exhibited fluorescent blood cells. This latter staining is at least partly due to non-specific reactions of blood cell membranes with FITC-conjugated anti-rabbit IgG. Cartilage is characterized by non-specific fluorescence, but in embryos older than 8 days strong granular fluorescence of chondrocytes and staining of the perichondrium distinguished sections treated with anti-LDH5 antibodies from control sections reacted only with FITC-conjugated anti-rabbit IgG. In addition, strong fluorescent staining was detectable in certain areas of the 5-day neural tube and faint staining in the mucosa of the intestine from embryos older than 10 days.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00375745
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative pharmacokinetics of ceftazidime in young, healthy and elderly, acutely ill males (1988)
    Springer
    European journal of clinical pharmacology 34 (1988), S. 179-186 
    Details
    ISSN: 1432-1041
    Keywords: ceftazidime ; pharmacokinetics ; elderly patients ; young volunteers ; acute infection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of ceftazidime have been investigated after single and multiple i.v. doses in 9 young healthy male volunteers and 15 elderly male patients with acute bacterial infections. All subjects had normal, age-correlated glomerular function. Distribution and elimination in young volunteers were unaffected by posture and were similar to what has been reported earlier. In contrast, elderly patients had longer t1/2β (3.1 vs 1.9 h), larger AUC (414.0 vs 276.6 h·mg/l), lower total and renal clearances, reduced urinary recovery over 12 h and enlarged Vss. Total serum clearance of ceftazidime was closely correlated with the51Cr-EDTA clearance. There was no significant change in51Cr-EDTA clearance after seven days of treatment. A reduction in the dose of betalactam antibiotics eliminated by the kidney is advisable in elderly patients with an acute bacterial infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614556
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  • 4
    Electronic Resource
    Electronic Resource
    Pharmacological effects and serum levels of orally administered alprenolol in man (1972)
    Springer
    European journal of clinical pharmacology 5 (1972), S. 44-52 
    Details
    ISSN: 1432-1041
    Keywords: alprenolol ; serum drug level ; exercise ; man ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effects of alprenolol on heart rate and systolic blood pressure were studied in healthy subjects during standardized exercise on a bicycle ergometer. In one series of experiments, in which serum concentrations of alprenolol were also measured, the effects of single oral doses of 50, 100 and 200 mg of alprenolol and a placebo were compared by a double blind cross-over technique. In a second series of experiments 100 mg alprenolol was given four times in one day and the effect was followed for up to eighteen hours after the last dose. — Alprenolol diminished the expected increase in heart rate and systolic blood pressure during exercise. The reduction of exercise tachycardia in a given individual was linearly related to the logarithm of the dose or the serum concentration of alprenolol. The serum concentrations required for a given reduction of exercise tachycardia varied almost one hundred-fold amongst the subjects studied. The biological availability of alprenolol was dose-dependent, probably due to a limited capacity biotransformation of the drug before it entered the general circulation. After a single dose the serum level of alprenolol and its chronotropic effect diminished at a rate corresponding to an elimination half life of about two hours. This rate of elimination was consistent with that calculated from the results of the four dose study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00560895
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  • 5
    Electronic Resource
    Electronic Resource
    Pharmacokinetics of di-n-propylacetate in epileptic patients (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 97-105 
    Details
    ISSN: 1432-1041
    Keywords: Di-n-propylacetate ; 2-propyl-valeric acid sodium salt ; pharmacokinetics ; anti-epileptic ; drug monitoring ; man
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of the anti-epileptic drug di-n-propylacetate (DepakineR) have been studied in 7 patients, in whom plasma concentrations were determined during and following subchronic treatment. Elimination of the drug appeared to follow a monophasic exponential course; biological half lives were 8 to 15 hours. The data supported the assumption that an open one-compartment model can be used to describe the kinetics of dipropylacetate in man. The drug appeared to have a relatively restricted distribution: calculated relative distribution volumes ranged from 0.15 to 0.40 1/kg. There were large interindividual differences in clearance rate. The therapeutic range was considered to be between 50 and 100 mg/1 plasma. Plasma levels of phenobarbital were markedly raised during treatment with dipropylacetate for an unknown reason. Determination of the plasma concentrations of drugs at accurately fixed times appears to be a reliable method for pharmacotherapeutic monitoring of epileptic patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561557
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  • 6
    Electronic Resource
    Electronic Resource
    Concentrations of the vasodilator isosorbide dinitrate and its metabolites in the blood of human subjects (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 157-160 
    Details
    ISSN: 1432-1041
    Keywords: Isosorbide dinitrate ; pharmacokinetics ; metabolism ; pharmacological action ; nitrates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary An oral dose of 5 mg of14C-isosorbide dinitrate was rapidly absorbed, biotransformed and excreted by human subjects. Peak whole blood concentrations of radioactivity were reached after 1.5 to 2 hours and declined relatively slowly. The radioactivity in whole blood mainly represented metabolites, isosorbide mononitrates. The peak concentrations found were 4.5, 11.7 and 34.3 ng/ml of isosorbide dinitrate, isosorbide 2-mononitrate and isosorbide 5-mononitrate, respectively, in the blood of one subject and 5.9, 15 and 61.3 ng/ml, respectively, in the blood of another subject. However, concentrations of the metabolites declined relatively slowly during 6 h after the oral dose. Up to 99% of an oral dose of isosorbide dinitrate was excreted during 5 days, mainly in the urine of the first day (ca. 78%). The results showed that isosorbide mononitrates were available to contribute to the pharmacological action.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567108
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  • 7
    Electronic Resource
    Electronic Resource
    Pharmacokinetics — Uses and abuses (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 241-248 
    Details
    ISSN: 1432-1041
    Keywords: pharmacokinetics ; experimental design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary It is apparent from studying recent articles on pharmacokinetics that a number of misunder-standings exist, both about the design of experiments and the analysis of results. The purpose of this paper is to outline many of the common pitfalls associated with the design of experiments and also the limitations upon the analysis of results. The paper describes mathematical, laboratory and clinical aspects which must be examined in designing a protocol for pharmacokinetic experiments. Simulated data is presented to demonstrate the dangers of using standard computer programs for parameter estimation. Even when convergence is obtained the answers may be dependent on the method employed. A mathematical model is of little use unless a reasonable amount of good, accurate data is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567122
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  • 8
    Electronic Resource
    Electronic Resource
    Pharmacokinetics and side-effects of clonazepam and its 7- amino-metabolite in man (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 249-254 
    Details
    ISSN: 1432-1041
    Keywords: Clonazepam ; 7-amino-clonazepam ; pharmacokinetics ; side-effects ; man
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Clonazepam (CNP) and its principal metabolite in plasma, 7-amino-CNP (ACNP), have been investigated in a prospective study of 27 newly diagnosed epileptics and correlated with specified side-effects. At a daily dose of 6 mg, the average plasma levels of both substances were about 50ng/ml, and individual values ranged from 30 to about 80ng/ml. There was a linear correlation between changes in dose and the resulting plasma levels, which indicates first order elimination kinetics. Side-effects were frequent, but neither their severity nor their occurrence could be related to plasma levels or to the rate of increase in plasma concentration of the drug. Three out of five patients who developed serious dysphoria had significantly high CNP levels. The concentration of ACNP was considerably increased in four patients who subsequently suffered from withdrawal symptoms. Drug interaction with diphenylhydantoin, i.e. decreased CNP level, was observed in all five patients who received both compounds. In general it is not yet possible to define an upper limit for the plasma levels of CNP and ACNP at which toxicity occurs. In patients treated with conventional doses of CNP, measurement of plasma concentration is not required, except in special circumstances, because of the lack of correlation between plasma level and side-effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567123
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  • 9
    Electronic Resource
    Electronic Resource
    Anticoagulant effect and plasma kinetics of fluorophenindione after a single dose in man (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 271-275 
    Details
    ISSN: 1432-1041
    Keywords: Fluorophenindione ; vitamin K antagonist ; pharmacokinetics ; loading dose ; anticoagulant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary After administration of a single loading dose (80 mg p.o.) of fluorophenindione, the prothrombin level decreased to 37 % in 24 h, and the effect lasted for 48 h. Accordingly, fluorophenindione can be classified as an anticoagulant with an “intermediate” effect. Its elimination half-life was 31 h, which is longer than that of phenindione, because of the greater stability of the fluorinated derivate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567127
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  • 10
    Electronic Resource
    Electronic Resource
    Kinetics of nortriptyline in man according to a two compartment model (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 343-347 
    Details
    ISSN: 1432-1041
    Keywords: Nortriptyline ; pharmacokinetics ; man ; two compartment model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Plasma concentrations of nortriptyline have been assayed in four subjects after intravenous infusion of 57 mg nortriptyline hydrochloride. The data were evaluated according to a two compartment open model. The calculated best-fitting curves were in good agreement with the experimental data, better than could be expected from a simpler model. This justifies the assumption that the kinetics of nortriptyline in man may be described by this model with an appropriate input function. The data permitted estimation of all the parameters of the model. The meaning of the parameters is discussed, particularly in relation to individual variation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00562660
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