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Personal Genome Diagnostics PlasmaSelect-R Liquid Biopsy

Personal Genome Diagnostics today announced the launch of its PlasmaSelect-R liquid biopsy test. The test analyzes genetic alterations in cancer using circulating cell-free tumor DNA that is present in plasma, reducing the need for tumor tissue specimens. It detects sequence alterations and translocations in 63 well-characterized genes that include all important known biologic and therapeutic cancer targets. PGD said that the test is currently intended for use by cancer drug researchers, but that it plans to launch a CLIA version for clinical applications later in 2015.

The Scan

Study Tracks Responses in Patients Pursuing Polygenic Risk Score Profiling

Using interviews, researchers in the European Journal of Human Genetics qualitatively assess individuals' motivations for, and experiences with, direct-to-consumer polygenic risk score testing.

EHR Quality Improvement Study Detects Demographic-Related Deficiencies in Cancer Family History Data

In a retrospective analysis in JAMA Network Open, researchers find that sex, ethnicity, language, and other features coincide with the quality of cancer family history information in a patient's record.

Inflammatory Bowel Disease Linked to Gut Microbiome Community Structure Gradient in Meta-Analysis

Bringing together data from prior studies, researchers in Genome Biology track down microbial taxa and a population structure gradient with ties to ulcerative colitis or Crohn's disease.

Ancient Greek Army Ancestry Highlights Mercenary Role in Historical Migrations

By profiling genomic patterns in 5th century samples from in and around Himera, researchers saw diverse ancestry in Greek army representatives in the region, as they report in PNAS.