{
  "id": 25216,
  "label": "rhabdomyolysis-myalgia syndrome",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0850415",
  "properties": {
    "xrefs": [
      "DOID:0080992",
      "GARD:0026612"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "A myopathy that is characterized by muscle breakdown (rhabdomyolysis), heat and exertion-related muscle pain (myalgia) and cramping symptoms, severe muscle pain, sudden elevation and subsequent fall of serum creatine phosphokinase levels and products of muscle breakdown in the urine (myoglobinuria). Associated with RYR1 variations. Rhabdomyolysis is associated with a range of external triggers, including strenuous exercise beyond the limit of fatigue, heat stress, illicit drug or alcohol abuse, use of supplements or certain medications, recent viral illness or muscle trauma."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 23892,
      "label": "RYR1-related myopathy",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4427,
        19001,
        19669,
        24271
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "GARD:0026064",
          "Orphanet:98742"
        ],
        "synonyms": [
          "RYR1-related disease",
          "RYR1-related disorder",
          "RYR1-related myopathy",
          "neurological muscular channelopathy due to a genetic ryanodine receptor defect"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "A disorder of the musculoskeletal system caused by pathogenic variants in the RYR1 gene, which encodes the ryanodine receptor type 1 protein. These variants are associated with a variety of overlapping features characterized by symmetric proximal muscle weakness, often with pronounced facial weakness with or without dysmorphism and ophthalmoparesis/ophthalmoplegia with ptosis, bulbar weakness, significant respiratory involvement, severe neonatal hypotonia, scoliosis, orthopedic deformities including arthrogryposis, hip dislocation, club feet, and King Denborough syndrome (pectus carinatum or excavatum, short stature, joint contractures, facial and skeletal deformities), malignant hyperthermia susceptibility, anesthesia-induced rhabdomyolysis, fatigue, exercise-induced hyperthermia/exertional heat stroke, and exertional myalgia. Histologic findings on skeletal muscle biopsy reveal a wide range of structural abnormalities and can include central core disease, multiminicore disease, cone-rod myopathy, centronuclear myopathy, and congenital fiber-type disproportion."
      },
      "child_count": 20,
      "reference_id": "MONDO:0100150"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 23892,
      "label": "RYR1-related myopathy"
    }
  ]
}