{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreien7faqgbcn64t5ew6jr7myipbplfwp72qhgqyctjr73zha5bnsoe",
    "uri": "at://did:plc:2gbt2dlwaqovtnmxkat3tyke/app.bsky.feed.post/3mmsn4pdn6gy2"
  },
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreicyjgecfsphu4dkw7za5zodyux5ot24s5hwaabuqadluocbp6rb34"
    },
    "mimeType": "image/jpeg",
    "size": 73125
  },
  "path": "/articles/d41586-026-01415-w",
  "publishedAt": "2026-05-27T04:08:57.971Z",
  "site": "https://www.nature.com",
  "tags": [
    "doi:10.1038/d41586-026-01415-w"
  ],
  "textContent": "Nature, Published online: 26 May 2026; doi:10.1038/d41586-026-01415-w\n\nAn old theory gains fresh support from advanced DNA sequencing, which can detect rare mutations in B cells from people with autoimmune thyroid conditions.",
  "title": "Hard-to-detect mutations explain how common autoimmune diseases arise",
  "updatedAt": "2026-05-26T00:00:00.000Z"
}