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John McChesney, Tali Mackay, David Taylor, and Gregory Tsongalis

Theranos has appointed John McChesney, Tali Mackay, David Taylor, and Gregory Tsongalis to executive positions. McChesney has been named senior VP of operations. He previously served at Medtronic, Thermo Fisher Scientific, and GenapSys. Mackay has been named senior VP of corporate communications and investor relations. She previously worked at Genentech, Baxter, and various global public relations firms. Taylor has been promoted to general counsel. He joined Theranos as senior litigation counsel in May. Tsongalis has been appointed to the firm's Scientific and Medical Advisory Board. He has served on science and medical advisory boards at AltheaDx, Gentura Dx-USA, and Physicians Choice Laboratory Services. 

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.