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Changes in GAD65Ab-...
Changes in GAD65Ab-Specific Antiidiotypic Antibody Levels Correlate with Changes in C-Peptide Levels and Progression to Islet Cell Autoimmunity.
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Ortqvist, E (författare)
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Brooks-Worrell, B (författare)
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- Lynch, Kristian (författare)
- Lund University,Lunds universitet,Celiaki och diabetes,Forskargrupper vid Lunds universitet,Celiac Disease and Diabetes Unit,Lund University Research Groups
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Radtke, J (författare)
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Bekris, L M (författare)
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- Kockum, I (författare)
- Karolinska Institutet
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- Agardh, Carl-David (författare)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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- Cilio, Corrado (författare)
- Lund University,Lunds universitet,Diabetes - immunovirologi,Forskargrupper vid Lunds universitet,Diabetes - Immunovirology,Lund University Research Groups
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- Lethagen, ÅsaLinda (författare)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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Persson, B (författare)
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- Lernmark, Åke (författare)
- Lund University,Lunds universitet,Celiaki och diabetes,Forskargrupper vid Lunds universitet,Celiac Disease and Diabetes Unit,Lund University Research Groups
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Reichow, J (författare)
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Oak, S (författare)
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Palmer, J P (författare)
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Hampe, C S (författare)
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(creator_code:org_t)
- The Endocrine Society, 2010
- 2010
- Engelska.
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Ingår i: The Journal of clinical endocrinology and metabolism. - : The Endocrine Society. - 1945-7197 .- 0021-972X. ; 95, s. 310-318
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Context: The previously reported absence of 65-kDa glutamate decarboxylase antibody (GAD65Ab)-specific antiidiotypic antibodies (anti-Id) in type 1 diabetes (T1D) patients at clinical onset could be due to an inability to mount an antibody response to GAD65Ab or a longitudinal decline in anti-Id levels. Objective and Design: We investigated anti-Id levels in longitudinal samples obtained from T1D patients (n = 41) (clinical diagnosis - 12 months), and latent autoimmune diabetes in adults (LADA) patients (n = 32) who received alum-formulated human recombinant GAD65 (baseline - 12 months). We also determined anti-Id levels in a small cohort of Type 2 diabetes patients during their development of autoimmune T cell responses. Results: At clinical onset T1D patients presented no or low anti-Id levels. However, 22/41 T1D patients showed >/=50% increase in GAD65Ab-specific anti-Id levels during follow-up; peaking at 3 (n = 1), 6 (n = 10), 9 (n = 10), or 12 (n = 1) months. Increasing anti-Id levels marked patients who experienced a temporary increase in C-peptide levels. Anti-Id levels correlated significantly with glycated hemoglobin and C-peptide levels at 6 and 9 months (P values ranged from <0.001 to <0.05). In LADA patients receiving placebo, anti-Id levels declined in seven of nine patients, whereas four of five patients receiving 20 mug alum-formulated human recombinant GAD65 showed increasing anti-Id levels. Changes in anti-Id and C-peptide levels closely correlated (P < 0.0001). The significant decline in anti-Id levels (P = 0.03) in T2D patients developing T cell autoimmune responses supports our hypothesis that declining anti-Id levels are associated with developing islet autoimmunity. Conclusions: The close association between GAD65Ab-specific anti-Id levels and beta-cell function may provide a novel marker for the progression of autoimmune diabetes.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
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Ortqvist, E
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Brooks-Worrell, ...
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Lynch, Kristian
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Radtke, J
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Bekris, L M
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Kockum, I
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visa fler...
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Agardh, Carl-Dav ...
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Cilio, Corrado
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Lethagen, ÅsaLin ...
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Persson, B
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Lernmark, Åke
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Reichow, J
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Oak, S
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Palmer, J P
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Hampe, C S
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visa färre...
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Lunds universitet
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Karolinska Institutet