Molecular
Clock identity, version, processing and measurement precision.
Research / Clock & function
Measure the change.
Test the meaning.
Repeatability, biological relevance and durable functional benefit are three separate questions.
Evidence architecture
Keep four outcomes in view.
Function
The cell’s relevant job, in defined units, with suitable controls.
Identity
Composition and cell-state checks that keep interpretation grounded.
Safety
Viability, adverse outcomes and observation duration.
Evidence, not a universal score
Different instruments answer different questions.
The clock-reliability study by Higgins-Chen et al. reports technical-replicate deviations up to nine years for prominent clocks, with most improved PC-clock replicate differences within 1.5 years. These results do not provide a universal error bar for other experiments. Nature Aging, 2022.
The biomarker-validation review by Moqri et al. identifies challenges in comparability, generalization and clinical translation. It establishes a research need, not Karam’s ownership of a solution. Nature Medicine, 2024.
DunedinPACE estimates organism-level aging pace from blood methylation. Cell Painting profiles morphology. A cell-level evidence audit must be assessed against the decision and existing workflow it intends to improve. DunedinPACE · Cell Painting record.
Our development path
Evidence first. Specific assets next.
Audit workflow
Browser-based descriptive tools, source cases and exportable research decisions.
Defined benchmark
Test usefulness in one model and intended use, with independent evaluation and appropriate data rights.
Assay or instrument
Pursue a specific technical advantage only when evidence and prior-art diligence justify it.
Bioelectricity remains a research domain. Commercial implementation requires its own evidence and rights review; competitors’ activity does not close an entire scientific field.