Validation of an enzyme-linked immunoassay assay for osteocalcin, a marker of bone formation, in dried blood spots. (Special Issue: Human biologists Confront the COVID-19 Pandemic.)

Objectives: Investigating factors that contribute to bone loss and accretion across populations in remote settings is challenging, particularly where diagnostic tools are scarce To mitigate this challenge, we describe validation of a commercial ELISA assay to measure osteocalcin, a biomarker of bone formation, from dried blood spots (DBS)