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  • 1990-1994  (2)
  • 1970-1974  (2)
  • 1965-1969
  • Lymphocytes  (2)
  • Acute leukemia  (1)
  • Chemotaxis  (1)
Material
Years
  • 1990-1994  (2)
  • 1970-1974  (2)
  • 1965-1969
  • 1985-1989  (1)
Year
  • 1
    ISSN: 1432-1440
    Keywords: Hepatic candidiasis ; Fluconazole ; Chemotherapy ; Acute leukemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Hepatic candidiasis represents an increasingly difficult problem in immunocompromised patients. It has been recognized as a variant of disseminated candidiasis after a period of neutropenia. Establishment of diagnosis is difficult since liver biopsy as well as culture may be negative, in spite of the presence of fungus. Hepatic lesions are generally not detectable by ultrasound examination or computed tomography until the neutrophil count has returned to normal. The aim of this case report is to describe the problems related to the diagnosis and treatment of hepatic candidiasis following chemotherapy for acute leukemia. The report also provides further evidence that fluconazole, a new broad-spectrum antifungal drug, can be safely and effectively used for the long-term treatment of deep-seated hepatic candidiasis.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Lymphocytes ; Subpopulations ; Chronic lymphocytic leukaemia ; Lymphocyten ; Subpopulationen ; Chronische Lymphadenose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zirkulierende Lymphocyten setzen sich aus funktionell heterogenen Zellen zusammen, welche mit morphologischen Methoden allein nur ungenügend differenziert werden können. Unter Verwendung immunologischer und autoradiographischer Methoden wurden Lymphocyten mit Determinanten leichter (kappa) Ketten, Lymphocyten mit Membranreceptoren für Immun-Komplement-Komplexe, lymphatische Zellen mit cytoplasmatischem Immunglobulingehalt und Lymphocyten in DNS-Synthese bestimmt. Gegenüber Normalpersonen waren bei Patienten mit chronischer Lymphadenose Abweichungen an mehreren dieser Lymphocytenpopulationen nachweisbar. Die Ergebnisse werden im Hinblick auf das Konzept thymus- und knochenmarkabhängiger Lymphocyten diskutiert, deren Differenzierung mit immunologischen Methoden erleichtert wird.
    Notes: Summary Circulating lymphocytes consist of a heterogenous cell population. Employing immunological and autoradiographic methods lymphocytes with Ig (kappa) determinants, those with membrane receptors for immune-complement complexes, lymphocytes containing Ig intracellularly and those in DNA synthesis were evaluated in normals and in patients with chronic lymphocytic leukaemia (CLL). The concept of functionally defective lymphocytes in CLL was further substantiated. The use of immunological markers for identifying thymus (T)- and bone marrow (B) derived human lymphocytes is discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Lymphocytes ; Lymphocytes ; Ig determinants ; subpopulations ; Hypogammaglobulinaemia ; Lymphocyten ; Lymphocyten-Ig-Determinanten ; Lymphocyten-Subpolulationen ; Hypogammaglobulinämien
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Unter Verwendung125I markierter monospezifischer Antiseren gegen menschlicheμ-,γ-,α-,κ-undλ-Ketten bestimmten wir den Prozentsatz Ig-tragender Blutlymphocyten bei Patienten mit primären und symptomatischen Hypogammaglobulinämien. Zwei Patienten mit geschlechtsgebundenen Hypogammaglobulinämien, 2 mit IgA-Defekten, 4 mit transitorischen Hypogammaglobulinämien und 13 mit symptomatischer. Hypogammaglobulinämien (7 multiple Myelome, 2 M. Waldenström und 4 chronische Lymphadenosen) wurden untersucht. Bei erwachsenen Kontrollen fanden wir im Mittelκ-Ketten an 18,5%,λ-Ketten an 2,8%,μ-Ketten an 12,1%,γ-Ketten an 10,5% undα-Ketten an 3,9% der Blutlymphocyten. Prinzipiell ähnliche Ergebnisse wurden bei gesunden Kindern, bei Patienten mit transitorischen Hypogammaglobulinämien und solchen mit IgA-Defekten erhalten. Im Gegensatz dazu fehlten Ig-tragende Lymphocyten in beiden Fällen mit geschlechtsgebundener Hypogammaglobulinämie weitgehend. Normale Werte wurden bei ihren Eltern und bei den untersuchten Geschwistern erhalten. Trotz einer deutlichen Verminderung zumindest eines der Serum-Ig fanden sich bei Patienten mit multiplen Myelomen normale oder lediglich leicht herabgesetzte Zahlen Ig-tragender Lymphocyten. Bei Kranken mit M. Waldenström waren IgM-tragende Lymphocyten stark vermehrt. Trotz verminderter Serum-Ig Spiegel waren die anderen Ig-Klassen an der Zelloberfläche in etwa normaler Häufigkeit nachzuweisen. Diese Diskrepanz war bei Patienten mit chronischer Lymphadenose besonders ausgeprägt, bei denen eine extreme Vermehrung Ig-tragender Lymphocyten mit normalen oder verminderten Serum-Ig-Spiegeln einherging. Die Ergebnisse werden im Hinblick auf eine Störung der B-Zellreifung diskutiert.
    Notes: Summary Using125I labelled monospecific antisera against human,μ-,γ-,α-,κ- andλ-chains we investigated the percntage of surface Ig-bearing lymphocytes in patients suffering from primary or acquired hypogammaglobulinaemias. Two patients with sex-linked hypogammalobulinaemia, 2 with IgA defects, 4 with transitory hypogammaglobulinaemia and 13 patients with secondary hypogammaglobulinaemia (7 with multiple myeloma, 2 with M. Waldenström, 4 with chronic lymphocytic leukaemia) were studied. In healthy adult controlsκ-chains were found in the average on 18.5%.λ-chains on 2.8%,μ-chains on 12.1%,γ-chains on 10.5% andα-chains on 3.9% of blood lymphocytes. Comparable results were obtained in children, in patients suffering from transitory hypogammaglobulinaemia and in those with IgA-defects. In contrast, lymphocytes bearing Ig-determinants were almost absent in both cases with sex-linked hypogammaglobulinaemia (normal values were obtained in both parents and the siblings investigated). In patients with multiple myeloma, despite a low level of at least one immunoglobulin in the serum, normal or only slightly reduced numbers of lymphocytes with Ig-determinants were observed. In patients with M. Waldenström IgM-bearing lymphocytes were markedly increased, but the other Ig classes were represented in normal numbers despite reduced serum levels. In patients with chronic lymphocytic leukaemia the disagreement between very high numbers of lymphocytes bearing at least L-chain determinants on their surfaces and the Ig serum levels was striking. The results are discussed in regard to a maturation defect of B-lymphocytes in hypogammaglobulinaemias.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1912
    Keywords: Somatostatin ; Octreotide ; Neutrophils ; Raspiratory burst ; Chemotaxis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Growth hormone, prolactin and somatostatin are polypeptide hormones of the neuroendocrine and peripheral nervous systems. In vitro, these have opposing effects on cells of the immune system. We compared the effects of these peptides on activation of neutrophils using a recombinant preparation of human growth hormone, human prolactin and octreotide, a long acting analog of somatostatin. In the absence of growth hormone, octreotide did not affect either neutrophil locomotion or respiratory burst. Octreotide, however, significantly antagonized growth hormone-induced activation of neutrophils for enhanced respiratory burst as well as growth hormone-induced inhibition of stimulated migration. As the effect of growth hormone on neutrophils is mediated by the prolactin receptor, its inhibition by octreotide was also tested using prolactin as priming agent. Data indicate comparable effects of octreotide on priming of neutrophils by prolactin. The effect of octreotide was dose-dependent and appeared to be selective, as activation of neutrophil respiration burst by γ-interferon, and inhibition of stimulated migration by tumor necrosis factor-α were unaffected by octreotide. The present study suggests that octreotide may act on neutrophils directly by antagonizing growth hormone or prolactin at the cellular level.
    Type of Medium: Electronic Resource
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