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  • Aplasia  (2)
  • Analytical Chemistry and Spectroscopy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Interleukin-6 (IL-6) levels in febrile children during maximal aplasia after bone marrow transplantation (BMT) are similar to those in children with normal hematopoiesis (1995)
    Springer
    Annals of hematology 70 (1995), S. 309-312 
    Details
    ISSN: 1432-0584
    Keywords: Interleukin-6 ; Aplasia ; Bone marrow transplantation ; Hematopiesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Interleukin-6 (IL-6) has been shown to be an inducer of the acute-phase response (APR) and to be involved in the pathogenesis of several disease states, including graft-versus-host disease (GvHD) following allogeneic bone marrow transplantation (BMT). As blood cells of the monocyte lineage are known to be major producers of this cytokine, we wondered whether extreme peripheral leukopenia following total ablation of hematopoiesis could compromise IL-6 production during the first days after allogeneic or autologous BMT. In the absence of detectable circulating leukocytes we measured elevated IL-6 levels in six children having fever (≥38° C) of presumed infectious origin with an average of 74±60 units/ml (range 19–309 units/ml). IL-6 levels in febrile children having a normal hematopoiesis (118±254 units/ml, range 17–1213 units/ml) were not significantly higher than those found in the febrile BMT group (p〉0.05). Moreover, there was a clear association between elevated IL-6 levels and the presence of fever. C-reactive protein (CRP) was also elevated (≥1 mg/dl), whereas tumor-necrosis factor alpha (TNF) was undetectable (〈1 pg/ml). Two transplanted patients without fever during the period of total aplasia had neither detectable CRP nor IL-6, thus demonstrating that the transplant procedure itself does not induce an APR. Our data obtained during maximal leukopenia following BMT show that a functional hematopoietic system is not necessary for regular production of IL-6, which is associated with fever. Cells of nonhematopoietic origin may contribute to this production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01696617
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Interleukin-6 (IL-6) levels in febrile children during maximal aplasia after bone marrow transplantation (BMT) are similar to those in children with normal hematopoiesis (1995)
    Springer
    Annals of hematology 70 (1995), S. 309-312 
    Details
    ISSN: 1432-0584
    Keywords: Key words Interleukin-6 ; Aplasia ; Bone marrow transplantation ; Hematopiesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Interleukin-6 (IL-6) has been shown to be an inducer of the acute-phase response (APR) and to be involved in the pathogenesis of several disease states, including graft-versus-host disease (GvHD) following allogeneic bone marrow transplantation (BMT). As blood cells of the monocyte lineage are known to be major producers of this cytokine, we wondered whether extreme peripheral leukopenia following total ablation of hematopoiesis could compromise IL-6 production during the first days after allogeneic or autologous BMT. In the absence of detectable circulating leukocytes we measured elevated IL-6 levels in six children having fever (≥38°  C) of presumed infectious origin with an average of 74±60 units/ml (range 19–309 units/ml). IL-6 levels in febrile children having a normal hematopoiesis (118±254 units/ml, range 17–1213 units/ml) were not significantly higher than those found in the febrile BMT group (p〉0.05). Moreover, there was a clear association between elevated IL-6 levels and the presence of fever. C-reactive protein (CRP) was also elevated (≥1 mg/dl), whereas tumor-necrosis factor alpha (TNF) was undetectable (〈1 pg/ml). Two transplanted patients without fever during the period of total aplasia had neither detectable CRP nor IL-6, thus demonstrating that the transplant procedure itself does not induce an APR. Our data obtained during maximal leukopenia following BMT show that a functional hematopoietic system is not necessary for regular production of IL-6, which is associated with fever. Cells of nonhematopoietic origin may contribute to this production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01696617
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Determination of chemical-shift tensor orientations in methylene groups by separated-local-field NMR (1993)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 31 (1993), S. 352-356 
    Details
    ISSN: 0749-1581
    Keywords: Separated-local-field NMR ; Chemical-shift tensor orientations ; Poly(ethylene oxide) ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The 13C chemical-shift tensor orientations in the OCH2CH2O moieties of poly(ethylene oxide) (PEO) and poly(ethylene terephthalate) (PET) were determined by means of 1H—13C separated-local-field NMR spectroscopy, and the literature values for the shift tensors in polyethylene (PE) and polyoxymethylene (POM) were improved. An angular resolution of ± 4° was attained on standard equipment with 90° pulse lengths exceeding 4 μs. Relatively high uniformity of the methylene tensor orientations, complying with local molecular symmetry, was found.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260310408
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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