{"count":4,"index":{"built_at":"2026-07-27T00:59:05.803235+00:00","public_records":55311,"revision":"5e29212c4e7a0a1abe0145d2"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: VDR in the context of skin aging"},"results":[{"answer":"The vitamin D receptor (VDR) is linked to skin aging through its role in cell proliferation, collagen synthesis, and inflammation. Several studies report associations between VDR polymorphisms (e.g., FokI, BsmI, TaqI) and wrinkle formation, loss of elasticity, or pigmentation. However, the evidence is mostly observational and mechanistic; robust clinical trials demonstrating a causal effect of VDR variants on skin aging are lacking. Effect sizes are small and confounded by lifestyle factors like UV exposure and diet. Therefore, a DNA test for VDR cannot reliably predict skin aging. A more evidence-based approach includes sun protection, antioxidants, and adequate vitamin D status. The clinical utility of VDR genotyping for anti-aging remains unproven.","area":"gesundheit","canonical_id":"gesundheit:canonical-aa686893c13136d95bf7c953","id":"public-c7911e0b736180f7b3457f9a","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: VDR in the context of skin aging","score":27.92332846,"snippet":"The vitamin D receptor (VDR) is linked to skin aging through its role in cell proliferation, collagen synthesis, and inflammation. Several studies report associations between VDR polymorphisms (e.g., FokI, BsmI, TaqI) and wrinkle formation, loss of elasticity, or pigmentation. However, the evidence is mostly observational and mechanistic; robust clinical trials demonstrating a causal effect of VDR variants on skin aging are lacking. Effect sizes are small and confounded by lifestyle factors like UV exposure and diet. Therefore, a DNA test for VDR cannot reliably predict skin aging. A more evidence-based approach includes sun protection, antioxidants, and adequate vitamin D status. The clinic","sources":[],"title":"Evidence check: VDR in the context of skin aging","url":"https://tikki.wiki/wissen/gesundheit/frage/public-c7911e0b736180f7b3457f9a/evidence-check-vdr-in-the-context-of-skin-aging/","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":"The vitamin D receptor (VDR) is frequently discussed in the context of skin health, particularly psoriasis, skin barrier function, and premature aging. The evidence is moderate: human observational studies and GWAS have linked VDR polymorphisms (e.g., FokI, TaqI) to psoriasis risk, but effect sizes are small and replication inconsistent. For direct anti-aging effects (collagen, elasticity), robust clinical trials are lacking; most data come from cell or animal models. VDR does influence keratinocyte differentiation and local vitamin D activation, which is biologically plausible, but a personalized recommendation based solely on a genetic test is not evidence-based. Caveat: Vitamin D supplementation should not be guided by a VDR test alone – blood levels of 25(OH)D are clinically more relevant. MyBody-X tests provide orienting hints, not diagnoses.","area":"gesundheit","canonical_id":"gesundheit:canonical-d586e65cefa4cf71316f9173","id":"public-e6fe4e3eb6cddc662babb181","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: VDR in the context of Haut","score":26.69523575,"snippet":"The vitamin D receptor (VDR) is frequently discussed in the context of skin health, particularly psoriasis, skin barrier function, and premature aging. The evidence is moderate: human observational studies and GWAS have linked VDR polymorphisms (e.g., FokI, TaqI) to psoriasis risk, but effect sizes are small and replication inconsistent. For direct anti-aging effects (collagen, elasticity), robust clinical trials are lacking; most data come from cell or animal models. VDR does influence keratinocyte differentiation and local vitamin D activation, which is biologically plausible, but a personalized recommendation based solely on a genetic test is not evidence-based. Caveat: Vitamin D suppleme","sources":[],"title":"Evidence check: VDR in the context of Haut","url":"https://tikki.wiki/wissen/gesundheit/frage/public-e6fe4e3eb6cddc662babb181/evidence-check-vdr-in-the-context-of-haut/","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":"The query concerns a DNA test called 'Fitness Vitality DNA' in the context of skin. The provided context includes only general SNP frequencies (rs1800497, rs1001179) and a brief Q&A on vitamin D and VDR. There is no direct evidence that this specific test provides clinically valid insights for skin health. Many commercial DNA tests combine markers for fitness, nutrition, and skin, but the evidence for personalized actionable recommendations is weak. Skin aging is dominated by UV exposure, lifestyle, and hormones; individual genetic variants (e.g., in collagen or antioxidant pathways) have only minor effects. The VDR SNP rs731236 may subtly influence vitamin D signaling, but its clinical relevance for skin is unclear. Without validated studies linking this test to skin parameters like elasticity, wrinkling, or acne, its predictive value remains speculative. I advise caution: such tests are often marketing, not medicine. A dermatologist or blood analysis (e.g., vitamin D, ferritin) is more reliable.","area":"gesundheit","canonical_id":"gesundheit:canonical-70e65a995c3ff618d62e209c","id":"public-5137637d391de53b4854755d","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Fitness Vitality DNA in the context of Haut","score":25.42386337,"snippet":"The query concerns a DNA test called 'Fitness Vitality DNA' in the context of skin. The provided context includes only general SNP frequencies (rs1800497, rs1001179) and a brief Q&A on vitamin D and VDR. There is no direct evidence that this specific test provides clinically valid insights for skin health. Many commercial DNA tests combine markers for fitness, nutrition, and skin, but the evidence for personalized actionable recommendations is weak. Skin aging is dominated by UV exposure, lifestyle, and hormones; individual genetic variants (e.g., in collagen or antioxidant pathways) have only minor effects. The VDR SNP rs731236 may subtly influence vitamin D signaling, but its clinical rele","sources":[],"title":"Evidence check: Fitness Vitality DNA in the context of Haut","url":"https://tikki.wiki/wissen/gesundheit/frage/public-5137637d391de53b4854755d/evidence-check-fitness-vitality-dna-in-the-context-of-haut/","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 Fertility Check in the context of weight loss is often marketed as a combo test analyzing genetic markers for both fertility and metabolism. However, the provided knowledge sources contain no specific fertility test; they refer to DNA tests for nutrition (INFINITY DNA-Test) or skin aging. The claimed link between single gene variants (e.g., VDR, APOA5) and fertility is scientifically weak. While weight loss can improve fertility in overweight individuals, a direct genetic fertility check lacks clinically valid guidance. Evidence is mostly from GWAS with small effects, not randomized trials. Consumers should critically evaluate marketing claims: no genetic test replaces medical fertility diagnostics (hormone status, cycle analysis). The combination with weight-loss advice is plausible but unsupported by the cited sources. Safety note: Do not start supplementation or diet based solely on genetic test results; medical supervision is recommended.","area":"gesundheit","canonical_id":"gesundheit:canonical-b9f64bd557568180652ffef0","id":"public-6b9f65f9514b66d4f5277aef","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Fertility Check in the context of Abnehmen","score":23.71777141,"snippet":"A Fertility Check in the context of weight loss is often marketed as a combo test analyzing genetic markers for both fertility and metabolism. However, the provided knowledge sources contain no specific fertility test; they refer to DNA tests for nutrition (INFINITY DNA-Test) or skin aging. The claimed link between single gene variants (e.g., VDR, APOA5) and fertility is scientifically weak. While weight loss can improve fertility in overweight individuals, a direct genetic fertility check lacks clinically valid guidance. Evidence is mostly from GWAS with small effects, not randomized trials. Consumers should critically evaluate marketing claims: no genetic test replaces medical fertility di","sources":[],"title":"Evidence check: Fertility Check in the context of Abnehmen","url":"https://tikki.wiki/wissen/gesundheit/frage/public-6b9f65f9514b66d4f5277aef/evidence-check-fertility-check-in-the-context-of-abnehmen/","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"}