{"count":2,"index":{"built_at":"2026-07-28T04:27:18.191806+00:00","public_records":55311,"revision":"41ce5aa8496d09eec5d6c1e5"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: tTG IgA in the context of longevity"},"results":[{"answer":"tTG IgA (tissue transglutaminase antibody) is a well-established biomarker for celiac disease, not directly for longevity. The evidence for diagnosing celiac disease is strong (human-strong), but the link to longevity is indirect and moderate. Untreated celiac disease can impair lifespan through chronic inflammation, malabsorption, and nutrient deficiencies (e.g., iron, vitamin D, B12). In the general asymptomatic population, screening for tTG IgA is controversial; guidelines recommend it only for at-risk groups (e.g., family history, type 1 diabetes). A positive test requires confirmation by duodenal biopsy. False positives can occur in other autoimmune conditions or infections. In the context of longevity, tTG IgA is not a routine marker; it is more relevant for investigating digestive complaints or unexplained deficiencies. A negative test does not rule out non-celiac gluten sensitivity. For comprehensive longevity assessment, markers like HbA1c, hs-CRP, vitamin D, omega-3 index, and hormone panels are more informative. The MyBody-X Men’s Wellness Check does not include tTG IgA; it focuses on metabolic and hormonal markers. In summary, tTG IgA is a specific diagnostic tool whose longevity relevance stems from preventing complications of undiagnosed celiac disease – not a direct longevity biomarker.","area":"gesundheit","canonical_id":"gesundheit:canonical-07e528e4c6f1a6b356648a95","id":"public-3211e0c803e90c7703480195","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: tTG IgA in the context of longevity","score":30.87483532,"snippet":"tTG IgA (tissue transglutaminase antibody) is a well-established biomarker for celiac disease, not directly for longevity. The evidence for diagnosing celiac disease is strong (human-strong), but the link to longevity is indirect and moderate. Untreated celiac disease can impair lifespan through chronic inflammation, malabsorption, and nutrient deficiencies (e.g., iron, vitamin D, B12). In the general asymptomatic population, screening for tTG IgA is controversial; guidelines recommend it only for at-risk groups (e.g., family history, type 1 diabetes). A positive test requires confirmation by duodenal biopsy. False positives can occur in other autoimmune conditions or infections. In the cont","sources":[],"title":"Evidence check: tTG IgA in the context of longevity","url":"https://tikki.wiki/wissen/gesundheit/frage/public-3211e0c803e90c7703480195/evidence-check-ttg-iga-in-the-context-of-longevity/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}},{"answer":"A positive tTG IgA test is a strong indicator of celiac disease but not diagnostic on its own. Tissue transglutaminase (tTG) is the main autoantigen in celiac disease, and elevated IgA antibodies have high sensitivity and specificity (>95%). However, current guidelines require duodenal biopsy with histological evidence of villous atrophy for confirmation, especially in adults. False positives can occur in other autoimmune conditions or rarely in liver disease. In the context of longevity, untreated celiac disease can lead to malabsorption (iron deficiency, osteoporosis), chronic inflammation, and increased risk of non-Hodgkin lymphoma, potentially reducing life expectancy. A strict gluten-free diet normalizes antibodies and significantly lowers complication risks. The evidence is strong (human-observational, guidelines), but the provided context lacks specific information on tTG IgA. Thus, this answer relies on general medical knowledge. Caveat: A positive test without biopsy confirmation may lead to misdiagnosis. In IgA deficiency, the test can be falsely negative; then IgG tTG or EMA should be considered.","area":"gesundheit","canonical_id":"gesundheit:canonical-67cec4f9dc2563c7d7471621","id":"public-952c027256b35729f18706e3","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: tTG IgA in the context of Langlebigkeit","score":29.60566058,"snippet":"A positive tTG IgA test is a strong indicator of celiac disease but not diagnostic on its own. Tissue transglutaminase (tTG) is the main autoantigen in celiac disease, and elevated IgA antibodies have high sensitivity and specificity (>95%). However, current guidelines require duodenal biopsy with histological evidence of villous atrophy for confirmation, especially in adults. False positives can occur in other autoimmune conditions or rarely in liver disease. In the context of longevity, untreated celiac disease can lead to malabsorption (iron deficiency, osteoporosis), chronic inflammation, and increased risk of non-Hodgkin lymphoma, potentially reducing life expectancy. A strict gluten-fr","sources":[],"title":"Evidence check: tTG IgA in the context of Langlebigkeit","url":"https://tikki.wiki/wissen/gesundheit/frage/public-952c027256b35729f18706e3/evidence-check-ttg-iga-in-the-context-of-langlebigkeit/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}}],"schema_version":"tikki.search-response.v1"}