Medications

FDA approves $2M medicine, most expensive ever

U.S. regulators have approved the most expensive medicine ever, for a rare disorder that destroys a baby's muscle control and kills nearly all of those with the most common type of the disease within a couple of years.

Neuroscience

How single neurons and brain networks support spatial navigation

Spatial navigation is an essential cognitive function, which is frequently impaired in patients suffering from neurological and psychiatric disorders. Research groups worldwide have studied the neuronal basis of spatial navigation, ...

Neuroscience

Thresholds found for unilateral optic nerve lesions in MS

(HealthDay)—A new anatomic threshold may be useful for identifying unilateral optic nerve lesions in patients with multiple sclerosis, according to a study published in the May issue of the Annals of Neurology.

Medical research

A nerve cell serves as a "single" for studies

Nerve cells derived from human stem cells often serve as the basis for research into brain diseases. However, these cells differ considerably in their quality and produce varying results. Scientists around the world are therefore ...

Neuroscience

Blocking protein curbs memory loss in old mice

Impeding VCAM1, a protein that tethers circulating immune cells to blood vessel walls, enabled old mice to perform as well on memory and learning tests as young mice, a Stanford study found.

Neuroscience

Fooling nerve cells into acting normal

Nerve cells, or neurons—specifically the "workhorse cells" involved in walking, breathing and chewing—can adjust to changes in the body, but they never stop working unless there is an fatal injury. What exactly signals ...

Cardiology

'Zap' ear clip may ease A-fib

(HealthDay)—Imagine if all it took to treat the heart condition atrial fibrillation was clipping a small device to your ear for an hour a day? That futuristic scenario could soon be a reality, according to a new study.

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Nerve

A nerve is an enclosed, cable-like bundle of peripheral axons (the long, slender projections of neurons). A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons. Nerves are found only in the peripheral nervous system. In the central nervous system, the analogous structures are known as tracts. Neurons are sometimes called nerve cells, though this term is technically inaccurate since many neurons do not form nerves, and nerves also include non-neuronal Schwann cells that coat the axons in myelin.

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