Medical research

Spinal organoids mimic neurodegenerative disease

'Organoids' that mimic the developing spinal cord could assist research and drug development for neurodegenerative diseases such as spinal muscular atrophy and amyotrophic lateral sclerosis.

Neuroscience

How can doctors tell if you wake up during surgery?

Waking up during surgery – it's terrifying to think about. But it does happen. There is evidence that around 5 per cent of people may experience so-called anaesthesia awareness at some point on the operating table, though ...

Neuroscience

Nerve-on-a-chip platform makes neuroprosthetics more effective

EPFL scientists have developed a miniaturized electronic platform for the stimulation and recording of peripheral nerve fibers on a chip. By modulating and rapidly recording nerve activity with a high signal-to-noise ratio, ...

Neuroscience

Researchers discover nerve repair mechanism

The research group of the Physiology Department of Elche's Universidad Miguel Hernández (UMH), Hugo Cabedo, has discovered how peripheral nerves induce the repair of the myelin sheath so that communication is properly restored ...

Neuroscience

Enzyme ensures thick insulation

ETH researchers have revealed that Schwann cells in the peripheral nervous system largely produce their own fatty acids in order to create electrical insulation for nerve fibres. This process relies on an enzyme whose absence ...

Neuroscience

Electrical nerve-block research aims at asthma, heart failure

Biomedical engineering researchers at Case Western Reserve University are refining more than 15 years of work on an electrical nerve-block implant, focusing their next step on new applications related to treating asthma and ...

Other

Explainer: What is VX nerve agent and how does it work?

The substance that could be responsible for the death Kim Jong-nam, the half-brother of the North Korean leader Kim Jong-un, was the VX nerve agent, according to preliminary reports from Malaysian police.

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Action potential

An action potential (or nerve impulse) is a transient alteration of the transmembrane voltage (or membrane potential) across an excitable membrane generated by the activity of voltage-gated ion channels embedded in the membrane. Action potentials play multiple roles in several types of excitable cells such as neurons, myocytes, and electrocytes. The best known action potentials are pulse-like waves of voltage that travel along axons of neurons.

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