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- Törn, Carina, et al.
(author)
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Increased autoantibodies to SOX13 in Swedish patients with type 1 diabetes.
- 2002
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In: Annals of the New York Academy of Sciences. - : Wiley. - 0077-8923 .- 1749-6632. ; 958, s. 218-223
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Journal article (peer-reviewed)abstract
- This article aims to estimate the prevalence of SOX13 antibodies in Swedish patients with type 1 diabetes and healthy controls. The patients (n = 102; median age 35 years [range, 9-89]) were newly diagnosed with type 1 diabetes in a defined area in southern Sweden during 1995-1998. Islet cell antibodies (ICA) were analyzed with immunofluorescence, while glutamic acid decarboxylase antibodies (GADA), tyrosine phosphatase antibodies (IA-2A), and antibodies against the transcription factor SOX13 (SOX13Ab) were analyzed with radioimmunoprecipitating assays. SOX13Ab were found in 9.8% (10/102) of type 1 patients compared to 2.0% (2/99) in healthy controls (P = 0.033). At least one of the four autoantibodies (ICA, GADA, IA-2A or SOX13Ab) were identified in 67% (68/102) of the patients. Samples positive for IA-2A were only in one case positive also for SOX13Ab. IA-2A-positive patients were often positive also for ICA and GADA (19/27), and the same combination was also common for SOX13Ab-positive patients (6/10). Only 2.0% (2/102) were positive for SOX13Ab alone. ICA, GADA and IA-2A were more frequent in younger patients (
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- ADLERCREUTZ, PATRICK, et al.
(author)
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Enzymatic Peptide Synthesis in Organic Media
- 1990
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In: Annals of the New York Academy of Sciences. - : Wiley. - 0077-8923 .- 1749-6632. ; 613:1, s. 517-520
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Journal article (peer-reviewed)
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- Agmon-Levin, Nancy, et al.
(author)
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Antitreponemal Antibodies Leading to Autoantibody Production and Protection from Atherosclerosis in Kitavans from Papua New Guinea
- 2009
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In: Contemporary Challenges in Autoimmunity. - : Wiley. - 0077-8923 .- 1749-6632. ; 1173, s. 675-682
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Conference paper (peer-reviewed)abstract
- The objective of our study was to determine the prevalence of anti-infectious agent antibodies and autoantibodies in a unique non-Westernized population from Kitava, Papua New Guinea (PNG), compared to Western populations. We matched 120 serum samples from Kitavans with 437 samples from four healthy control groups. Sera were tested for the presence of anti-infectious agent antibodies (treponema, toxoplsmosis, Epstein-Barr virus, cytomegalovirus, rubella) and autoantiobodies [anti-double-stranded (ds)DNA, anti-chromatin, anti-ribonucleoprotein (RNP), anti-SSB, anti-SSA, anti-Scl-70, anti-Smith, anti-centromer, anti-SmRNP, anti-Jo-1, and anti-ribosomal-P] using the Bio-Rad BioPlex 2200. Antitreponemal antibodies were detected in 87% of PNG sera versus 0-6% of controls (P < 0.0001). Anti-dsDNA antibodies were detected in 31% of PNG samples, which was significantly higher than in three of the control groups (<10%). The outstanding high rate of antitreponemal antibodies detected in Kitavans possibly represents prior yaws disease. A low prevalence of cardiovascular disease was previously documented in Kitavans and has been attributed, in addition to their diet, to the high prevalence of natural cardioprotective autoantibodies (the IgM-antiphosphorylcholine antibodies) in this population. Treponemal infection has been shown to induce the appearance of antiphosphorylcholine antibodies. These protective autoantibodies may cross-react with the pathogenic anti-dsDNA antibodies. Thus, it is suggested that infection with treponema is associated with the presence of protective as well as pathogenic autoantibodies.
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