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Träfflista för sökning "WFRF:(Ludvigsson J.) srt2:(1990-1994)"

Search: WFRF:(Ludvigsson J.) > (1990-1994)

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1.
  • Landin-Olsson, Mona, et al. (author)
  • Immunoreactive trypsin(Ogen) in the sera of children with recent-onset insulin-dependent diabetes and matched controls
  • 1990
  • In: Pancreas. - : Ovid Technologies (Wolters Kluwer Health). - 0885-3177. ; 5:3, s. 241-247
  • Journal article (peer-reviewed)abstract
    • To evaluate the exocrine pancreatic function at the time of diagnosis of insulin-dependent diabetes mellitus, we determined immunoreactive an-odal and cathodal trypsin(ogen) levels in sera from almost all children (n = 375) 0-14 years of age in Sweden in whom diabetes developed during 1 year, and in sex-, age-, and geographically matched control subjects (n = 312). The median level of anodal trypsin(ogen) was 5 (quartile range, 3-7) µg/L in children with newly diagnosed diabetes, compared with a median level of 7 (quartile range, 4-8) µg/L in control subjects (p < 0.0001). Similarly, the median level of cathodal trypsin(ogen) was 8 (quartile range, 4-10) µg/L in children with diabetes, compared with a median level of 11 (quartile range, 7-15) µg/L in control subjects (p < 0.0001). The median of the individual ratios between cathodal and anodal trypsin(ogen) was 1.4 in the diabetic patients and 1.7 in the control children (p < 0.001). In a multivariate test, however, only the decrease in cathodal trypsin(ogen) concentration was associated with diabetes. The levels of trypsin(ogen)s did not correlate with levels of islet cell antibodies, present in 81% of the diabetic children. Several mechanisms may explain our findings, for example, similar pathogenetic factors may affect both the endocrine and exocrine pancreas simultaneously, a failing local trophic stimulation by insulin on the exocrine cells may decrease the trypsinogen production, and there may be an increased elimination of trypsin(ogen) because of higher filtration through the kidneys in the hyperglycemic state.
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2.
  • Sairenji, T., et al. (author)
  • Relating homology between the Epstein-Barr virus BOLF1 molecule and HLA-DQw8 β chain to recent onset Type 1 (insulin-dependent) diabetes mellitus
  • 1991
  • In: Diabetologia. - 0012-186X. ; 34:1, s. 33-39
  • Journal article (peer-reviewed)abstract
    • A role for the Epstein-Barr virus in initiating Type 1 (insulin-dependent) diabetes mellitus has been proposed since Epstein-Barr virus BOLF1(497-513) AVTPL RIFIVP PAAEY has an 11 amino acid identity with HLA-DQw8 β (49-60) AVTPL GPPAAEY. Rabbit antisera to the BOLF1 (496-515) peptide crossreacted with the homologous DQw8 β (44-63) peptide but not with the related DQw7 β(44-63) peptide, which differed from the DQw8 peptide only in an ALA to ASP substitution in position 57. Antisera to DQw8 β(49-60) reacted with the DQw8 β(44-63) peptide and BOLF1 (496-515), but not with DQw7 β (44-63). The antiserum to the BOLF1 peptide bound to denatured class II major histocompatibility complex β chains from Epstein-Barr virus-transformed DQw8-positive lymphocytes in an immunoblotting analysis. Epstein-Barr virus antibodies were detected at equal frequencies and similar titres in sera of 30 patients with Type 1 diabetes (16 of 30;63%) and in sera of 20 non-diabetic control subjects (13 of 20;65%). Sera from diabetic patients did not bind to DQw8 β (44-63) or BOLF1(496-515) peptides. From these data we conclude that there is no simple relationship between serological evidence of Epstein-Barr virus infection and crossreactions between homologous Epstein-Barr virus and class II major histocompatibility complex peptides.
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3.
  • Fioretos, Thoas, et al. (author)
  • Molecular analysis of Philadelphia-positive childhood chronic myeloid leukemia.
  • 1992
  • In: Leukemia. - 1476-5551. ; 6:7, s. 723-725
  • Journal article (peer-reviewed)abstract
    • The breakpoints in chromosome 22 were determined in five children with Philadelphia-positive chronic myeloid leukemia. All had rearrangements within the major breakpoint cluster region (M-bcr). Four patients had breakpoints in the 5' region of M-bcr (zones 1-3), whereas one had a rearrangement in the 3' region (zone 4). The patient with the 3' rearrangement was the only one to develop a lymphoid blast crisis; he also had a substantially longer survival (102 months) than the others (11-54 months).
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