Catalyst

Reference

Evidence

CompoundsSubstances with curated findings
OutcomesMeasured endpoints
ProteinsTransporters and enzymes
InteractionsPairs that share biology
PapersEvery paper a finding cites
ArticlesReadings of the evidence

Chemistry

ReactionsRhea and Human-GEM, by subsystem
ReachWhat a compound can become

Reference layer

PathwaysReactions grouped under one name
ProcessesWhat proteins are annotated as doing
AnatomyTissues, by what is expressed there
Cell typesCells, by what is expressed there
OrganismsSpecies a compound is prepared from
MaterialsSubstances that are not one molecule
AssessmentsRegulatory determinations, transcribed
DiseasesFeatures, genes, and where each sits

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Reference

Evidence

Compounds
Outcomes
Proteins
Interactions
Papers
Articles

Chemistry

Reactions
Reach

Reference layer

Pathways
Processes
Anatomy
Cell types
Organisms
Materials
Assessments
Diseases

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Endpoint

Pulsatility index, internal carotid artery

CAT:outcome/pulsatility-index-internal-carotid-arteryreported in dimensionless ratio

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How it is measured

Doppler pulsatility index of the internal carotid artery, computed from peak-systolic, end-diastolic and mean blood-flow velocities, by colour Doppler ultrasound.

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Catalyst

Computational infrastructure for human biology, built on a provenance-aware knowledge graph. Findings retain their sources; research and simulation are the next layers.

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Processes
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A reference for what the literature reports. Not medical advice.

Endpoint

Pulsatility index, internal carotid artery

CAT:outcome/pulsatility-index-internal-carotid-arteryreported in dimensionless ratio

Open in the graph

How it is measured

Doppler pulsatility index of the internal carotid artery, computed from peak-systolic, end-diastolic and mean blood-flow velocities, by colour Doppler ultrasound.