Transition to family foods drives development of infant gut microbiota

After the age of nine months, the development of the infant gut microbiota is driven by the transition to family foods, not maternal obesity, according to results from a new study. The study was published online this week in mSphere, an open-access jou...

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Biosensors on demand

New research leverages a combination of computational protein design, in vitro synthesis and in vivo testing to establish a first-of-its-kind strategy for identifying custom-tailored biosensors.

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The sleeping giant NGC 4889 harbors a dark secret

The placid appearance of NGC 4889 can fool the unsuspecting observer. But the elliptical galaxy, seen in a new image from the NASA/ESA Hubble Space Telescope, harbors a dark secret. At its heart lurks one of the most massive black holes ever discovered.

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Type 2 diabetes drug can exhaust insulin-producing cells

Long-term use of liraglutide, a substance that helps to lower blood sugar levels in patients with type 2 diabetes, can have a deteriorating effect on insulin-producing beta cells, leading to an increase in blood sugar levels, an international team of r...

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True love: How transcription factors interact to create a heart

Three transcription factors -- proteins that direct gene expression -- interact with each other and the genome to influence how a heart forms in an embryo, scientists have discovered. Without these protein interactions, severe congenital heart defects ...

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Common cell transformed to master heart cell

By genetically reprogramming the most common type of cell in mammalian connective tissue, researchers have generated master heart cells -- primitive progenitors that form the developing heart. The feat could one day fuel drug discovery, powerful new mo...

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Why smiles (and frowns) are contagious

Smile! It makes everyone in the room feel better because they, consciously or unconsciously, are smiling with you. Growing evidence shows that an instinct for facial mimicry allows us to empathize with and even experience other people's feelings. If we...

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