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  • 1
    ISSN: 1432-1440
    Schlagwort(e): Lymphocyte ; Rheumatoid arthritis ; Inhibitory plasma factors ; Lymphozyten ; Primär chronische Polyarthritis ; Plasmatische inhibierende Faktoren
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Es wurde in vitro an 51 Patienten mit chronischer Polyarthritis die lymphozytäre Blastogenese zu PHA in Kulturen mit autologem oder normalem Plasma sowie auch die E-Rosetten-Bildung und die Gegenwart an Oberflächen-Ig untersucht. Während der Prozentsatz an T- und B-Zellen fast normal bleibt (52,1±2,1% und 18,1±2,1%, n.W. 55,6±2,0% und 16,2±0,8%), ist die Blastogenese in den Kulturen mit 25% autologem Plasma (5 399±709 cpm gegen dem Standartwert von 13 182±920 cpm) bedeutend verringert. Diese kehrt fast zu den Normalwerten zurück, sobald man das Patientenplasma mit Plasma von Gesunden ersetzt (12 189±1 081 cpm). Das rheumatoide Plasma ist imstande die Blastogenese von 11 normalen Personen zu hemmen (7 395±750 cpm). Eine vorhergehende Inkubation für 90′ der Lymphozyten von 14 Kontrollpersonen in rheumatoidem oder autologem Plasma führt zu einer bedeutenden Differenz in der E-Rosettenbildung (40,8±1,4% und 56,2±2,1%). Dies bedeutet das die funktionelle Hemmung der T-Lymphozyten bei dieser Krankheit auf plasmatische Faktoren zurückzuführen ist.
    Notizen: Summary The lymphocytes blastigenesis to PHA in culture with autologous or normal plasma, the formation of E rosettes and the presence of immunoglobulins on the lymphocytes surface were evaluated in 51 patients with chronic primary polyarthritis. While the percentage of T and B cells was almost normal (52.1±2.1% and 18.1±1.1%, N.V. 55.6±2.0% and 16.2±0.8%), the blastigenesis was significantly reduced in cultures with a 25% autologous plasma (5399±709 cpm compared to 13,182±920 cpm of the normal standard) and returned towards normal values when it was replaced by the plasma of a normal subject (12,189±1 081 cpm). The rheumatoid plasma was capable of reducing the blastigenesis in 11 normal subjects (7 395±750 cpm). The preincubation for 90′ of the lymphocytes of 14 controls in rheumatoid or autologous plasma induced a significant reduction in the formation of spontaneous rosettes (40.8±1.4% and 56.2±1.7%). These results suggest that the reduced function of the T lymphocytes in this disease is due to plasma factors.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 206-213 (Dec. 2001), p. 1477-1480 
    ISSN: 1013-9826
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Cellular and molecular life sciences 33 (1977), S. 1520-1521 
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary A new effect of NCV on lymphocytes is demonstrated. This property is the capacity to act as a mitogen in and of itself. The possible mechanisms of this phenomenon are discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1109-1110 
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The effect ofα-mercaptopropionyl-glycine on the in vitro proliferative response of healthy subjects' lymphocytes was studied. Low doses of the drug enhanced spontaneous lymphocyte blastigenesis but had no effect on the PHA-induced blastic response. With increasing concentrations ofα-mercaptopropionyl-glycine inhibition of3H-thymidine incorporation was found in unstimulated as well as in PHA stimulated lymphocytes.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    ISSN: 0942-0940
    Schlagwort(e): Immunology ; Medulloblastoma ; Brain tumours
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Preliminary findings in the evaluation of the immune response of children with primary neoplasms of the CNS, mainly medulloblastomas, are reported and discussed. A broad scheme for the monitoring of B- and T-cell-dependent immunity and of delayed hypersensitivity reactions in this type of patient is presented. The most important immunobiological findings are discussed. Special attention is given to the striking failure of the T-cell-dependent pool (currently identified by “active” RFC and blastigenesis tests) and to the remarkable decrease of hypersensitivity reactions (depressed skin-test response), both of which seem to be related to the degree of malignancy of the tumour. A very peculiar feature,i.e., the appearance of cells with natural cytotoxic activity, is dealt with in some detail. Our present knowledge concerning the immunobiology of primary CNS neoplasms is still very incomplete, but seems to suggest a possible role for immunotherapy in paediatric neurosurgery.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    International archives of occupational and environmental health 43 (1979), S. 99-105 
    ISSN: 1432-1246
    Schlagwort(e): Acetylcholinesterase (AchE) ; Glucose-6-Phosphate Dehydrogenase (G-6-PDh) ; Pyruvate kinase (PK) ; Lactate Dehydrogenase (LDH) ; alfa Hydroxybutyrate Dehydrogenase (alfa HBDH) measurements (activities), 0.4 mg/m3 exposure ; Ozone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary In 22 subjects exposed during work to ozone concentrations ranging from 0.160 to 0.290 ppm, the following enzyme activities were measured at the end of a normal work shift: AchE, G-6-PDh, PK in erythrocytes, LDH and alfa HBDH in serum. AchE of erythrocytes and serum LDH and alfa HBDH were determined also after three weeks of nonexposure to ozone. LDH and alfa HBDH activities decreased at the second determination; the difference between the two determinations was statistically significant (P〈0.001). The results indicate that an exposure to 0.2 ppm of ozone, if prolonged in time, may affect the air-blood barrier and possibly cause alteration of some serum enzyme activities. Concentrations of ozone around 0.2 ppm should therefore be avoided in urban and industrial areas.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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