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Sema4 Expanded Carrier Screening

Sema4 has launched a larger Expanded Carrier Screen for family planning with personalized residual risk.

The test analyzes 502 genes associated with clinically relevant conditions, up from 283 genes, to cover more rare diseases. The test detects more high-risk pregnancies and identifies up to 30 times more carrier couples, Sema4 CEO Eric Schadt said in a statement. It also incorporates low-pass genome analysis to detect ancestry markers that to refine the accuracy of results.

The Scan

Harvard Team Report One-Time Base Editing Treatment for Motor Neuron Disease in Mice

A base-editing approach restored SMN levels and improved motor function in a mouse model of spinal muscular atrophy, a new Science paper reports.

International Team Examines History of North American Horses

Genetic and other analyses presented in Science find that horses spread to the northern Rockies and Great Plains by the first half of the 17th century.

New Study Examines Genetic Dominance Within UK Biobank

Researchers analyze instances of genetic dominance within UK Biobank data, as they report in Science.

Cell Signaling Pathway Identified as Metastasis Suppressor

A new study in Nature homes in on the STING pathway as a suppressor of metastasis in a mouse model of lung cancer.