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DermTech: Bret Christensen, John Dobak

DermTech has appointed Bret Christensen as president, CEO, and a board member. He succeeds John Dobak who stepped down from the roles. Christensen had been the chief commercial officer of diabetes-focused medical device firm Insulet. Prior to that, he was general manager of preventive care at Myriad Genetics. He also held several executive positions at Hologic, including VP of sales and marketing for the firm's gynecologic surgical products.

The Scan

Machine Learning Helps ID Molecular Mechanisms of Pancreatic Islet Beta Cell Subtypes in Type 2 Diabetes

The approach helps overcome limitations of previous studies that had investigated the molecular mechanisms of pancreatic islet beta cells, the authors write in their Nature Genetics paper.

Culture-Based Methods, Shotgun Sequencing Reveal Transmission of Bifidobacterium Strains From Mothers to Infants

In a Nature Communications study, culture-based approaches along with shotgun sequencing give a better picture of the microbial strains transmitted from mothers to infants.

Microbial Communities Can Help Trees Adapt to Changing Climates

Tree seedlings that were inoculated with microbes from dry, warm, or cold sites could better survive drought, heat, and cold stress, according to a study in Science.

A Combination of Genetics and Environment Causes Cleft Lip

In a study published in Nature Communications, researchers investigate what combination of genetic and environmental factors come into play to cause cleft lip/palate.