Neuroscience

Why do our photoreceptors respond to light by turning off?

(Medical Xpress)—An enduring neurobiological mystery is why do vertebrate rods and cones shut down their transmitter release in response to a light stimulus. If that particular question is too broad, then consider a slight ...

Diseases, Conditions, Syndromes

Study suggests worsening trends in headache management

Each year more than 12 million Americans visit their doctors complaining of headaches, which result in lost productivity and costs of upward of $31 billion annually. A new study by researchers from Beth Israel Deaconess Medical ...

Neuroscience

Tackling neurotransmission precision

Behind all motor, sensory and memory functions, calcium ions are in the brain, making those functions possible. Yet neuroscientists do not entirely understand how fast calcium ions reach their targets inside neurons, and ...

Medical research

The ryanodine receptor—calcium channel in muscle cells

Whenever muscles contract, so-called ryanodine receptors come into play. Calcium ions, which are ultimately responsible for the contraction of muscle cells, are released from storage organs and flow through these ion channels. ...

Neuroscience

Researchers unlock new mechanism in pain management

It's in the brain where we perceive the unpleasant sensations of pain, and researchers have long been examining how calcium channels in the brain and peripheral nervous system contribute to the development of chronic pain ...

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