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  • Organic Chemistry  (9)
  • Rheumatoid arthritis  (3)
  • (Ehrlich ascites cell membrane)  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Calcium permeability of Ehrlich ascites tumour cell plasma membrane in vivo
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 686 (1982), S. 27-35 
    Details
    ISSN: 0005-2736
    Keywords: (Ehrlich ascites cell membrane) ; Ca^2^+ permeability ; Energy depletion ; Ionophore ; Mitotic activity
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(82)90148-1
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  • 2
    Electronic Resource
    Electronic Resource
    NMR monitoring of rheumatoid arthritis patients receiving anti-TNF-α monoclonal antibody therapy (1997)
    Springer
    Rheumatology international 16 (1997), S. 249-255 
    Details
    ISSN: 1437-160X
    Keywords: Dynamic MRI ; Rheumatoid arthritis ; Biological response modifiers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study was to investigate if dynamic gadolinium-DTPA-supported magnetic resonance (MR) imaging can monitor the therapeutic effect of a fast-acting immuno-modulating drug like anti-tumour necrosis factor alpha (anti-TNF-α) monoclonal antibody (moab) in patients with rheumatoid arthritis (RA). Dynamic MR imaging was performed on 64 joints in a total of 18 patients before and after infusion with either a placebo or 1 or 10 mg/kg of anti-TNF-α moab. Additionally, treating the placebo group and reinfusing the verum group with either 3 or 10 mg/kg was monitored by quantitative nuclear magnetic resonance (NMR). Time-dependent signal intensity changes were then correlated with a total of five Paulus criteria and with ESR and C-reactive protein (CRP). No changes in either the gadolinium uptake or clinical parameters were seen after the infusion of a placebo. Therapy with 1 mg/kg anti-TNF-α moab resulted in a significant decrease in clinical disease activity, as well as in gadolinium-DTPA uptake in dynamic NMR studies. However, correlations between signal intensity changes and Paulus criteria were only demonstrated for the variable “doctor's evaluation of disease activity”. Patients given 10 mg/kg moab demonstrated a very significant improvement in all clinical manifestations of their disease, as well as a high significant reduction in gadolinium uptake (P=0.004). In addition, the latter group showed significant correlations between time-dependent signal intensity changes and five Paulus criteria: “number of swollen joints”, “number of painful joints”, “duration of morning stiffness”, “doctor's evaluation of disease activity” and “patient's evaluation of disease activity”. No differences and correlations were seen for ESR and CRP. We concluded that dynamic NMR studies are suitable to monitor inflammatory activity in RA patients under therapy with biological response modifiers such as anti-TNF-α moab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01375657
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  • 3
    Electronic Resource
    Electronic Resource
    Imaging rheumatoid arthritis joints with technetium-99m labelled specific anti-CD4− and non-specific monoclonal antibodies (1994)
    Springer
    European journal of nuclear medicine 21 (1994), S. 176-180 
    Details
    ISSN: 1619-7089
    Keywords: Anti-CD4 monoclonal antibody ; Anti-carcinoembryonic antigen monoclonal antibody ; Immunoscintigraphy ; Technetium-99m labelling ; Rheumatoid arthritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A direct comparison of the joint-imaging properties of inflammation-specific- and non-specific monoclonal antibodies (Mabs) was possible in a patient suffering from long-standing, severe rheumatoid arthritis (RA). This patient received an anti-CD4− and an anti-carcinoembryonic antigen (anti-CEA) Mab, both labelled with technetium-99m, 9 days apart from each other. The anti-CD4 Mab was superior to the isotype-matched anti-CEA Mab in imaging inflamed joints. In the knee joint, the target-to-background ratio of the synovial membrane (SM) activity in comparison to that of adjacent large vessels was 1.22 (SM/muscle 1.55) for the anti-CD4 Mab and 0.53 (SM/muscle 0.92) for the anti-CEA Mab, in both cases 4 h after injection of the immunoglobulin. Since the CD4 antigen is present on the surface of T-helper lymphocytes and macrophages infiltrating the inflamed synovial membrane, imaging with the anti-CD4 Mab may allow more specific detection of inflammatory infiltrates in RA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00175768
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  • 4
    Electronic Resource
    Electronic Resource
    Imaging rheumatoid arthritis specifically with technetium 99m CD4-specific (T-helper lymphocytes) antibodies (1990)
    Springer
    European journal of nuclear medicine 17 (1990), S. 156-159 
    Details
    ISSN: 1619-7089
    Keywords: Immunoscintigraphy ; Technetium 99m-labelled antibodies ; CD4-specific (T-lymphocyte) antibodies ; Rheumatoid arthritis ; Localisation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract CD4 expressing T-lymphocytes are involved in the pathogenesis of rheumatoid arthritis, so the possibility of using radiolabelled CD4-specific antibodies to localise diseased joints was studied. Prospectively six patients with rheumatoid arthritis were investigated. Five of them received 200–300 μg of a 555 MBq technetium 99m CD4-specific antibody (MAX.16H5) and were examined with three phase bone scans. Max.16H5 (IgG1) was labelled according to the mercaptoethanol (Schwarz) method. Lymphocytes of one patient were isolated on a Ficoll-Hypaque gradient and labelled with the antibody in vitro. Scans were performed 1.5 h, 4 and 24 h post injection in anterior and posterior views. In all patients, diseased joints could be clearly imaged at as early as 1.5 h. The localisation of the diseased joints correlated (P〈0.01) with the clinical signs, with the early methylene diphosphonate (MDP) scan (P 〉 0.01) and only weakly with the late bone scan (P 〉 0.05). According to these data we conclude that99mTc-labelled CD4-specific antibodies specifically image actively diseased joints in rheumatoid arthritis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811445
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  • 5
    Electronic Resource
    Electronic Resource
    Synthese von bipolaren Ionenaustauscherharzen (1987)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 329 (1987), S. 483-492 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis of Bipolar Ion Exchange ResinsSyntheses of weakly acid/strongly basic and weakly acid/weakly basic bipolar ion exchange resins with varying acid and basic capacities via subsequent introduction of the exchange active groups in suitable crosslinked skeletal polymers are described.Methylacrylate-styrene-divinylbenzene polymers of varying composition which can be quantitatively chloromethylated and subsequently fully aminated (trimethylamine) and partially saponified in one process step were used as starting polymers for weakly acid/strongly basic resins. The reverse route saponification of the ester groups first, followed by chloromethylation of the aromatic parts of the matrix and animation turned out to the possible, if at all, only for bipolar resins of strongly predominant basic character. The capacity parameters can be controlled through the composition of the matrix.Polymethylacrylates crosslinked with divinylbenzene served as polymer basis of the weakly acid/weakly basic bipolar ion exchange resins. The functionalization was achieved by partial aminolysis with polyamines (dimethylaminopropylamine, ethylenediamine, diethylenetriamine) and saponification with lyes. The number of basic and acid groups which can be introduced is governed primarily by the conditions of the aminolysis. The capacity parameters are controllable within a broad range by the procedures.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19873290315
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  • 6
    Electronic Resource
    Electronic Resource
    Über den Struktureinfluß von Kieselgelen auf die Trennung von flüssigen Kohlenwasserstoffen (1959)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 9 (1959), S. 237-246 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Der Einfluß der Struktur verschiedenartiger Kieselgele auf die chromatographische Trennung typischer flüssiger Kohlenwasserstofftestgemische wird beschrieben und die Wirkung von Oberfläche, Porengröße und Korngröße auf den Trenneffekt diskutiert. Eine vollständige Auftrennung läßt sich bei den gewählten Testgemischen mit Kieselgelen mittleren Porendurchmessers (50-60 Å) erzielen. Im Gegensatz dazu ist die Trennwirksamkeit eng- und weitporiger Kieselgele deutlich abgeschwächt.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19590090504
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  • 7
    Electronic Resource
    Electronic Resource
    Flüssige Ionenaustauscher. 2. Beobachtungen bei der Synthese von Di-2-äthylhexylphosphatDiese Arbeit ist ein Teilauszug aus der Dissertation K. HÄUPKE, Math.-Nat. Fakultät der Universität Halle. (1966)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 33 (1966), S. 206-212 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Synthese von Di-2-äthylhexylphosphat aus 2-Äthylhexanol und POCl3 ergab sich eine Abhängigkeit der Zusammensetzung des aus Di-2-äthylhexylphosphat und dem Nebenprodukt Mono-2-äthylhexylphosphat bestehenden Endproduktes von der Dauer der gegenseitigen Einwirkung bei erhöhter Temperatur. Während die Gesamtausbeute an Ester durch ein Maximum läuft, schwankt das Verhältnis Mono- zu Di-2-äthylhexylphosphat periodisch.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19660330314
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  • 8
    Electronic Resource
    Electronic Resource
    Über den Zusammenhang zwischen Konstitution und insektizider Wirkung einiger Acetylphenylester der Phospor- und Thiophosphorsäure (1968)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 37 (1968), S. 243-251 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden verschiedenartig substituierte Acetylphenylester der Phosphor- und Thiophosphorsäure hergestellt und deren Wirksamkeit gegen Musca domestica geprüft. Es zeigte sich, daß eine lineare Abhängigkeit sowohl zwischen dem LD50-Wert und dem pK-Wert als auch zwischen dem LD50-Wert und der Verschiebung der Frequenz der OH-Valenzschwingung der zur Veresterung herangezogenen Phenole besteht, wenn diese in m- oder p-Stellung substituiert sind. Bei mehrfacher Substitution konnte diese Übereinstimmung nicht gefunden werden, da durch Wasserstoffbrückenbindung (o-Acetylphenol) oder sterische Hinderung, speziell bei angularen Erstsubstituenten (NO2- und COCH3Gruppe), die erwarteten Substitutionseinflüsse nicht voll wirksam werden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19680370504
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  • 9
    Electronic Resource
    Electronic Resource
    Vergleichende Untersuchungen an temperaturbeständigen Pigmenten auf Basis 3-Amino-phthalsäureimid. I (1971)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 313 (1971), S. 301-308 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden hochtemperaturbeständige Azopigmente auf der Basis von 3-Amino-phthalsäureimid hergestellt. Durch Einführung von Chlorsubstituenten konnte die Lichtechtheit günstig beeinflußt werden. Die Migrationsechtheit wurde durch Molekülverdopplung entscheidend verbessert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19713130215
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  • 10
    Electronic Resource
    Electronic Resource
    Ortho-ana-Dibromchinolin (1895)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 51 (1895), S. 490-497 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.18950510141
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