{"title":"Autoimmune","description":null,"products":[{"product_id":"celiac-comprehensive-panel","title":"Celiac Disease Comprehensive Panel","description":"\u003cp\u003eCeliac disease is an immune reaction to gluten in genetically susceptible people that can damage the lining of the small intestine. This comprehensive panel helps support a celiac diagnosis and identify who may need a biopsy. It measures tissue transglutaminase (tTG) IgA, a marker with about 95% sensitivity and specificity, along with total IgA to account for the 2 to 3% of celiac patients who are IgA deficient. Because these antibodies decline on a gluten-free diet, the panel can also help assess dietary compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Blood Test:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTissue Transglutaminase (tTG) Antibody (IgA)\u003c\/li\u003e\n\u003cli\u003eTotal IgA (with reflex to Endomysial Antibody screen\/titer and tTG IgG when indicated)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marek Diagnostics","offers":[{"title":"Default Title","offer_id":52643079717138,"sku":"QST-197","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/7427\/5858\/files\/celiac-comprehensive-panel.webp?v=1787693723"},{"product_id":"celiac-hla-genotyping","title":"Celiac Disease HLA Genotyping (DNA Analysis)","description":"\u003cp\u003eCeliac disease is strongly linked to the HLA-DQ genes: about 90% of people with celiac carry HLA-DQ2 and most of the rest carry HLA-DQ8. This DNA analysis genotypes HLA-DQA1 and HLA-DQB1 to determine whether you carry these risk types. Because a negative result makes celiac disease very unlikely, it is most useful for ruling the condition out, clarifying uncertain antibody or biopsy results, or screening close relatives. A positive result signals genetic susceptibility, not active disease.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Blood Test:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHLA-DQ2 (DQA1*05\/DQB1*02)\u003c\/li\u003e\n\u003cli\u003eHLA-DQ8 (DQA1*03\/DQB1*0302)\u003c\/li\u003e\n\u003cli\u003eHLA-DQA1\u003c\/li\u003e\n\u003cli\u003eHLA-DQB1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marek Diagnostics","offers":[{"title":"Default Title","offer_id":52648290156818,"sku":"QST-177","price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/7427\/5858\/files\/celiac-hla-genotyping.webp?v=1787755846"},{"product_id":"anti-dsdna-antibody","title":"Anti-Double-Stranded DNA (dsDNA) Antibody","description":"\u003cp\u003eAnti-double-stranded DNA (anti-dsDNA) antibodies are autoantibodies that target the body's own genetic material. They are highly specific for systemic lupus erythematosus (SLE) and are found in most people with active lupus, where levels often track with disease activity and kidney involvement. They also appear in about 20% of people with mixed connective tissue disease. This test is typically used to help confirm a lupus diagnosis after a positive ANA and to monitor disease activity over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Blood Test:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-Stranded DNA (dsDNA) Antibody\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marek Diagnostics","offers":[{"title":"Default Title","offer_id":52648292024594,"sku":"QST-179","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/7427\/5858\/files\/anti-dsdna-antibody.webp?v=1787755898"}],"url":"https:\/\/marekdiagnostics.com\/collections\/autoimmune.oembed","provider":"Marek Diagnostics","version":"1.0","type":"link"}