Search results for: ThyreoPeroxidase IgG antibody
#28417627 // To Up
A Retrospective Study on the Association between Thyroid Autoantibodies with β2-glycoprotein and Cardiolipin Antibodies in Recurrent Miscarriage.
Etiologic factors for recurrent miscarriage (RM) include autoimmune diseases, the most frequently antiphospholipid syndrome and thyroiditis. Some women who suffer from RM might also have an altered immune system. We aimed to evaluate possible associations between anti-thyroid and anti-phospholipid antibodies in women with RM. In a retrospective case series 1 on 156 women with RM, major outcome parameters were antibodies against cardiolipin, β2-glycoprotein I, thyreoperoxidase (TPO-Ab), and thyroglobulin (TG-Ab). Significant (p<0.05) positive correlations were found between TPO-Ab and TG-Ab (r=0.577), TPO-Ab and IgG anti-cardiolipin antibodies (r=0.284), TPO-Ab and IgG anti- β2-glycoprotein I antibodies (r=0.196), and TG-Ab and IgG anti-cardiolipin antibodies (r=0.193), as well as between all types of anti-phospholipid antibodies. Women with both increased TPO-Ab and TG-Ab levels revealed higher (p<0.001) IgG anti-cardiolipin and IgG anti-β2-glycoprotein I antibodies. Anti-thyroid antibodies were linked to anti-phospholipid antibodies and should be in the focus of future research on RM.Regina Promberger, Katharina Walch, Rudolf Seemann, Sophie Pils, Johannes Ott
1152 related Products with: A Retrospective Study on the Association between Thyroid Autoantibodies with β2-glycoprotein and Cardiolipin Antibodies in Recurrent Miscarriage.
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#26399744 2015/09/21 To Up
Antibodies to β adrenergic and muscarinic cholinergic receptors in patients with Chronic Fatigue Syndrome.
Infection-triggered disease onset, chronic immune activation and autonomic dysregulation in CFS point to an autoimmune disease directed against neurotransmitter receptors. Autoantibodies against G-protein coupled receptors were shown to play a pathogenic role in several autoimmune diseases. Here, serum samples from a patient cohort from Berlin (n=268) and from Bergen with pre- and post-treatment samples from 25 patients treated within the KTS-2 rituximab trial were analysed for IgG against human α and β adrenergic, muscarinic (M) 1-5 acetylcholine, dopamine, serotonin, angiotensin, and endothelin receptors by ELISA and compared to a healthy control cohort (n=108). Antibodies against β2, M3 and M4 receptors were significantly elevated in CFS patients compared to controls. In contrast, levels of antibodies against α adrenergic, dopamine, serotonin, angiotensin, and endothelin receptors were not different between patients and controls. A high correlation was found between levels of autoantibodies and elevated IgG1-3 subclasses, but not with IgG4. Further patients with high β2 antibodies had significantly more frequently activated HLA-DR+ T cells and more frequently thyreoperoxidase and anti-nuclear antibodies. In patients receiving rituximab maintenance treatment achieving prolonged B-cell depletion, elevated β2 and M4 receptor autoantibodies significantly declined in clinical responder, but not in non-responder. We provide evidence that 29.5% of patients with CFS had elevated antibodies against one or more M acetylcholine and β adrenergic receptors which are potential biomarkers for response to B-cell depleting therapy. The association of autoantibodies with immune markers suggests that they activate B and T cells expressing β adrenergic and M acetylcholine receptors. Dysregulation of acetylcholine and adrenergic signalling could also explain various clinical symptoms of CFS.Madlen Loebel, Patricia Grabowski, Harald Heidecke, Sandra Bauer, Leif G Hanitsch, Kirsten Wittke, Christian Meisel, Petra Reinke, Hans-Dieter Volk, Øystein Fluge, Olav Mella, Carmen Scheibenbogen
1110 related Products with: Antibodies to β adrenergic and muscarinic cholinergic receptors in patients with Chronic Fatigue Syndrome.
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