Jacob Hughey

Team tracks sources of false positives in urine drug screens

False positives on urine drug screens are common and are frequently due to cross-reactivity of these tests to medications. Last year, Vanderbilt University Medical Center researchers Jacob Hughey, PhD, assistant professor of Biomedical Informatics, and Jennifer Colby, PhD, at that time assistant professor of Pathology, Microbiology and Immunology, devised, tested and published a method to systematically identify medications that interfere with screenings for drugs of abuse.

Study finds broken circadian clock in human tumors

Human tumors appear to have a broken circadian clock, researchers at Vanderbilt University Medical Center report in the journal PeerJ.

collection of vintage pocket watches

Study reveals circadian time in a blood sample

A researcher at Vanderbilt has identified a set of 15 genes that together exhibit a 24-hour gene expression pattern in human blood, constituting a circadian clock biomarker.