{
  "url": "https://dantelabs.com/traits/avascular-necrosis",
  "trait": {
    "bundleId": "2026.10.19-9814e911",
    "release": "2026-09-01",
    "slug": "avascular-necrosis",
    "id": "HP:0010885",
    "name": "Death of bone due to decreased blood supply",
    "label": "Avascular necrosis",
    "definition": "A disease where there is cellular death (necrosis) of bone components due to interruption of the blood supply.",
    "synonyms": [
      "Aseptic bone necrosis",
      "Aseptic necrosis",
      "Bone infarction",
      "Ischaemic bone necrosis",
      "Ischemic bone necrosis",
      "Osteochondronecrosis",
      "Osteonecrosis"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-musculoskeletal-physiology",
        "name": "Abnormal musculoskeletal physiology",
        "url": "https://dantelabs.com/traits/abnormal-musculoskeletal-physiology"
      }
    ],
    "narrower": [
      {
        "slug": "juvenile-aseptic-necrosis",
        "name": "Juvenile aseptic necrosis",
        "genes": 0,
        "url": "https://dantelabs.com/traits/juvenile-aseptic-necrosis"
      }
    ],
    "genes": [
      {
        "slug": "il6st",
        "symbol": "IL6ST",
        "hgnc": "HGNC:6021",
        "name": "interleukin 6 cytokine family signal transducer",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/il6st"
      },
      {
        "slug": "ndc1",
        "symbol": "NDC1",
        "hgnc": "HGNC:25525",
        "name": "NDC1 transmembrane nucleoporin",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ndc1"
      },
      {
        "slug": "clcn7",
        "symbol": "CLCN7",
        "hgnc": "HGNC:2025",
        "name": "Cl-/H+ antiporter 7",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/clcn7"
      },
      {
        "slug": "col2a1",
        "symbol": "COL2A1",
        "hgnc": "HGNC:2200",
        "name": "collagen type II alpha 1 chain",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/col2a1"
      },
      {
        "slug": "gba1",
        "symbol": "GBA1",
        "hgnc": "HGNC:4177",
        "name": "glucosylceramidase beta 1",
        "frequency": "very-frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/gba1"
      },
      {
        "slug": "ptpn11",
        "symbol": "PTPN11",
        "hgnc": "HGNC:9644",
        "name": "protein tyrosine phosphatase non-receptor type 11",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ptpn11"
      },
      {
        "slug": "scarb2",
        "symbol": "SCARB2",
        "hgnc": "HGNC:1665",
        "name": "scavenger receptor class B member 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scarb2"
      },
      {
        "slug": "sh3pxd2b",
        "symbol": "SH3PXD2B",
        "hgnc": "HGNC:29242",
        "name": "SH3 and PX domains 2B",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sh3pxd2b"
      },
      {
        "slug": "hbb",
        "symbol": "HBB",
        "hgnc": "HGNC:4827",
        "name": "hemoglobin subunit beta",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hbb"
      },
      {
        "slug": "acd",
        "symbol": "ACD",
        "hgnc": "HGNC:25070",
        "name": "ACD shelterin complex subunit and telomerase recruitment factor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/acd"
      },
      {
        "slug": "c4a",
        "symbol": "C4A",
        "hgnc": "HGNC:1323",
        "name": "complement C4A (Chido/Rodgers blood group)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/c4a"
      },
      {
        "slug": "ccr1",
        "symbol": "CCR1",
        "hgnc": "HGNC:1602",
        "name": "C-C motif chemokine receptor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ccr1"
      },
      {
        "slug": "ctc1",
        "symbol": "CTC1",
        "hgnc": "HGNC:26169",
        "name": "CST telomere replication complex component 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctc1"
      },
      {
        "slug": "dkc1",
        "symbol": "DKC1",
        "hgnc": "HGNC:2890",
        "name": "dyskerin pseudouridine synthase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dkc1"
      },
      {
        "slug": "elp1",
        "symbol": "ELP1",
        "hgnc": "HGNC:5959",
        "name": "elongator acetyltransferase complex subunit 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/elp1"
      },
      {
        "slug": "erap1",
        "symbol": "ERAP1",
        "hgnc": "HGNC:18173",
        "name": "endoplasmic reticulum aminopeptidase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/erap1"
      },
      {
        "slug": "fas",
        "symbol": "FAS",
        "hgnc": "HGNC:11920",
        "name": "Fas cell surface death receptor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fas"
      },
      {
        "slug": "hla-b",
        "symbol": "HLA-B",
        "hgnc": "HGNC:4932",
        "name": "major histocompatibility complex, class I, B",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-b"
      },
      {
        "slug": "hpgd",
        "symbol": "HPGD",
        "hgnc": "HGNC:5154",
        "name": "15-hydroxyprostaglandin dehydrogenase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hpgd"
      },
      {
        "slug": "ifngr1",
        "symbol": "IFNGR1",
        "hgnc": "HGNC:5439",
        "name": "interferon gamma receptor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ifngr1"
      },
      {
        "slug": "il10",
        "symbol": "IL10",
        "hgnc": "HGNC:5962",
        "name": "interleukin 10",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/il10"
      },
      {
        "slug": "il12a",
        "symbol": "IL12A",
        "hgnc": "HGNC:5969",
        "name": "interleukin 12A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/il12a"
      },
      {
        "slug": "il12a-as1",
        "symbol": "IL12A-AS1",
        "hgnc": "HGNC:49094",
        "name": "IL12A antisense RNA 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/il12a-as1"
      },
      {
        "slug": "il23r",
        "symbol": "IL23R",
        "hgnc": "HGNC:19100",
        "name": "interleukin 23 receptor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/il23r"
      },
      {
        "slug": "klrc4",
        "symbol": "KLRC4",
        "hgnc": "HGNC:6377",
        "name": "killer cell lectin like receptor C4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/klrc4"
      },
      {
        "slug": "lmna",
        "symbol": "LMNA",
        "hgnc": "HGNC:6636",
        "name": "lamin A/C",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmna"
      },
      {
        "slug": "man2b1",
        "symbol": "MAN2B1",
        "hgnc": "HGNC:6826",
        "name": "mannosidase alpha class 2B member 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/man2b1"
      },
      {
        "slug": "mefv",
        "symbol": "MEFV",
        "hgnc": "HGNC:6998",
        "name": "MEFV innate immunity regulator, pyrin",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mefv"
      },
      {
        "slug": "nhp2",
        "symbol": "NHP2",
        "hgnc": "HGNC:14377",
        "name": "NHP2 ribonucleoprotein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nhp2"
      },
      {
        "slug": "nop10",
        "symbol": "NOP10",
        "hgnc": "HGNC:14378",
        "name": "NOP10 ribonucleoprotein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nop10"
      },
      {
        "slug": "npm1",
        "symbol": "NPM1",
        "hgnc": "HGNC:7910",
        "name": "nucleophosmin 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/npm1"
      },
      {
        "slug": "ntrk1",
        "symbol": "NTRK1",
        "hgnc": "HGNC:8031",
        "name": "neurotrophic receptor tyrosine kinase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ntrk1"
      },
      {
        "slug": "parn",
        "symbol": "PARN",
        "hgnc": "HGNC:8609",
        "name": "poly(A)-specific ribonuclease",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/parn"
      },
      {
        "slug": "rtel1",
        "symbol": "RTEL1",
        "hgnc": "HGNC:15888",
        "name": "regulator of telomere elongation helicase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rtel1"
      },
      {
        "slug": "slco2a1",
        "symbol": "SLCO2A1",
        "hgnc": "HGNC:10955",
        "name": "solute carrier organic anion transporter family member 2A1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slco2a1"
      },
      {
        "slug": "stat4",
        "symbol": "STAT4",
        "hgnc": "HGNC:11365",
        "name": "signal transducer and activator of transcription 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stat4"
      },
      {
        "slug": "terc",
        "symbol": "TERC",
        "hgnc": "HGNC:11727",
        "name": "telomerase RNA component",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/terc"
      },
      {
        "slug": "tert",
        "symbol": "TERT",
        "hgnc": "HGNC:11730",
        "name": "telomerase reverse transcriptase",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/tert"
      },
      {
        "slug": "tinf2",
        "symbol": "TINF2",
        "hgnc": "HGNC:11824",
        "name": "TERF1 interacting nuclear factor 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tinf2"
      },
      {
        "slug": "tlr4",
        "symbol": "TLR4",
        "hgnc": "HGNC:11850",
        "name": "toll like receptor 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tlr4"
      },
      {
        "slug": "tyms",
        "symbol": "TYMS",
        "hgnc": "HGNC:12441",
        "name": "thymidylate synthetase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tyms"
      },
      {
        "slug": "ubac2",
        "symbol": "UBAC2",
        "hgnc": "HGNC:20486",
        "name": "UBA domain containing 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ubac2"
      },
      {
        "slug": "usb1",
        "symbol": "USB1",
        "hgnc": "HGNC:25792",
        "name": "U6 snRNA biogenesis phosphodiesterase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usb1"
      },
      {
        "slug": "wrap53",
        "symbol": "WRAP53",
        "hgnc": "HGNC:25522",
        "name": "WD repeat containing antisense to TP53",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wrap53"
      },
      {
        "slug": "zmpste24",
        "symbol": "ZMPSTE24",
        "hgnc": "HGNC:12877",
        "name": "zinc metallopeptidase STE24",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zmpste24"
      },
      {
        "slug": "atrx",
        "symbol": "ATRX",
        "hgnc": "HGNC:886",
        "name": "ATRX chromatin remodeler",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atrx"
      },
      {
        "slug": "braf",
        "symbol": "BRAF",
        "hgnc": "HGNC:1097",
        "name": "B-Raf proto-oncogene, serine/threonine kinase",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/braf"
      },
      {
        "slug": "cdh23",
        "symbol": "CDH23",
        "hgnc": "HGNC:13733",
        "name": "cadherin related 23",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cdh23"
      },
      {
        "slug": "nr3c1",
        "symbol": "NR3C1",
        "hgnc": "HGNC:7978",
        "name": "nuclear receptor subfamily 3 group C member 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nr3c1"
      },
      {
        "slug": "tp53",
        "symbol": "TP53",
        "hgnc": "HGNC:11998",
        "name": "tumor protein p53",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tp53"
      },
      {
        "slug": "usp48",
        "symbol": "USP48",
        "hgnc": "HGNC:18533",
        "name": "ubiquitin specific peptidase 48",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usp48"
      },
      {
        "slug": "usp8",
        "symbol": "USP8",
        "hgnc": "HGNC:12631",
        "name": "ubiquitin specific peptidase 8",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usp8"
      },
      {
        "slug": "arsb",
        "symbol": "ARSB",
        "hgnc": "HGNC:714",
        "name": "arylsulfatase B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arsb"
      }
    ]
  }
}