Free tool · runs entirely in your browser

Biomarker lookup

Flag your lab results as high, low or normal and see which post-viral and chronic illness conditions report those markers moving the same way in peer-reviewed research.

This is not a diagnostic tool. It cross-references the direction of change (higher / lower than controls) reported in research cohorts. It does not know your reference ranges, does not interpret any number you type, and cannot tell you whether you have a condition. Many common markers are altered in dozens of unrelated illnesses. Use the output only as a conversation starter with a qualified clinician.

1Find your markers

Search by marker name, synonym or LOINC code. Pick a result to add it to your panel.

Loading biomarker atlases…
Common: CRP Ferritin D-dimer IL-6 TNF-α Cortisol Vitamin D NK cell ANA
Values and units are optional. They are kept in the link you share and in the clinician summary but are never interpreted: the atlases record direction of change only, with no reference ranges. You decide high / low / normal from your own lab report.
Common reference ranges (orientation only)

Typical adult ranges for about 30 frequently ordered markers. Ranges vary by laboratory, assay, age and sex. Always use the range printed on your own lab report; these are not used by the tool in any way.

MarkerTypical adult rangeUnit

Compiled from widely published laboratory reference intervals for orientation; not a clinical reference. Not medical advice.

2My panel 0

For each marker, mark what your own lab report says. Optionally note the value and unit.

No markers yet. Search on the left, or tap one of the common markers.

    3Conditions ranked by concordant markers

    Concordant = your "high" matches a marker reported higher in that condition, or your "low" matches one reported lower. Mixed-direction findings count as half. Discordant = the literature reports the opposite direction. Links go to the condition atlas and to the evidence page for each marker.

    Biomarker lookup — Open Source Medicine Foundation research tracker. Educational cross-reference of patient-entered flags against published direction of change. Not a diagnosis, result or recommendation.
    Read this before acting on anything above. Atlases differ enormously in size (Long COVID has 77 markers; migraine has 2), so large atlases will naturally collect more matches. Direction of change reflects the predominant finding in the cited reviews and is not universal across studies, cohorts or time since onset. No marker listed is a validated standalone diagnostic test for any of these conditions.

    Frequently asked questions

    What does this tool do?

    You add lab markers to a panel and mark each as high, low or normal. The tool ranks the 25 conditions in the OSMF biomarker atlases by how many of your flagged markers are reported moving in the same direction in peer-reviewed research, and links to the atlas page and to the evidence page for each matched marker.

    What does it not do?

    It does not diagnose anything, does not interpret the numbers you type, and does not apply reference ranges. The data records only direction of change in research cohorts, not thresholds, sensitivity or specificity. Overlap with published findings is all a score means. CRP, ferritin and IL-6 are altered in dozens of unrelated conditions.

    Where does the data come from?

    From the OSMF biomarker atlases: structured JSON files (data/biomarkers/<condition>.json) built from systematic reviews and meta-analyses, with a DOI citation, comparison group and LOINC code for each marker where available. This page fetches those same files directly, so it always shows what the atlases show.

    Is anything I enter stored or sent anywhere?

    No. Everything runs in your browser. Your panel is encoded only in the page address after the #, so a link you copy contains your flags and any values you typed. Share it only with people you want to see it. We do not receive it.

    How do I cite this?

    Open Source Medicine Foundation. Biomarker lookup: match your lab results to post-viral and chronic illness research. Research Tracker. https://research.opensourcemed.info/tools/biomarker-lookup.html (accessed date). Cite individual studies through the DOI links on each marker.