{
  "slug": "gerd-gastroesophageal-reflux-disease",
  "id": "gerd-gastroesophageal-reflux-disease-biomarkers",
  "condition": {
    "name": "GERD (Gastroesophageal Reflux Disease)",
    "shortName": "GERD (Gastroesophageal Reflux Disease)",
    "alternateNames": []
  },
  "page": {
    "title": "GERD (Gastroesophageal Reflux Disease) Biomarker Atlas | Blood Tests & Molecular Alterations",
    "breadcrumbName": "GERD (Gastroesophageal Reflux Disease) Biomarkers",
    "description": "Searchable atlas of GERD (Gastroesophageal Reflux Disease) biomarkers, from peer-reviewed literature comparing patient levels vs. healthy controls.",
    "keywords": [
      "GERD (Gastroesophageal Reflux Disease) biomarkers",
      "GERD (Gastroesophageal Reflux Disease) blood tests",
      "biomarker atlas",
      "biomarker database"
    ],
    "canonical": "https://research.opensourcemed.info/gerd-gastroesophageal-reflux-disease-biomarkers.html",
    "hero": "Molecular alterations reported in GERD (Gastroesophageal Reflux Disease) compared to healthy controls, from peer-reviewed literature.",
    "dateModified": "2026-07-03"
  },
  "categories": {
    "gastrointestinal": "Gastrointestinal"
  },
  "filters": [
    "gastrointestinal"
  ],
  "markers": [
    {
      "name": "Esophageal Acid Exposure Time",
      "alternateName": "Acid Exposure Time",
      "direction": "up",
      "category": "gastrointestinal",
      "comparison": "GERD patients (by MII-pH monitoring) vs asymptomatic healthy controls/functional heartburn",
      "symptoms": "",
      "reference": {
        "citation": "Hayat et al. 2015",
        "doi": "10.1136/gutjnl-2014-307049"
      }
    },
    {
      "name": "Salivary Pepsin",
      "alternateName": "Salivary Pepsin",
      "direction": "up",
      "category": "gastrointestinal",
      "comparison": "GERD/hypersensitive esophagus patients vs asymptomatic healthy controls",
      "symptoms": "",
      "reference": {
        "citation": "Hayat et al. 2015",
        "doi": "10.1136/gutjnl-2014-307049"
      }
    }
  ]
}