Medical research

Scientists create a recipe to make human blood-brain-barrier

The blood-brain barrier is the brain's gatekeeper. A nearly impenetrable shield of cells, it keeps toxins and other agents that may be in circulating blood from gaining access to and harming the brain.

Medical research

Lab-grown stem cells regenerate monkey hearts: study

In a step forward for organ regeneration, stem cells grown from a single monkey's skin cells revitalised the damaged hearts of five sick macaques, scientists reported Monday.

Neuroscience

Neuron tells stem cells to grow new neurons

Duke researchers have found a new type of neuron in the adult brain that is capable of telling stem cells to make more new neurons. Though the experiments are in their early stages, the finding opens the tantalizing possibility ...

Neuroscience

Model for brain signaling flawed, new study finds

A new study out today in the journal Science turns two decades of understanding about how brain cells communicate on its head. The study demonstrates that the tripartite synapse – a model long accepted by the scientific ...

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