Disease
- Excitatory synapses have a fundamental role in information processing within the brain and throughout the peripheral nervous system. Usually situated on dendritic spines, or neuronal membrane protrusions on which glutamate receptors and postsynaptic density components are concentrated, excitatory synapses aid in the electrical transmission of neuronal signals. The physical morphology of synapses is crucial in understanding their function, and it is well documented that the inappropriate loss of synaptic stability leads to the disruption of neuronal circuits and the resulting neurological diseases. Although there are innumerable different causes for different neurodegenerative illnesses, such as genetic dispositions or mutations, the normal aging process, parasitic and viral causes, or drug use, many can be traced back to dysfunctional signaling between the neurons themselves, often at the synapse.
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Famous quotes containing the word disease:
“The fantasies inspired by TB in the last century, by cancer now, are responses to a disease thought to be intractable and capricious—that is, a disease not understood—in an era in which medicine’s central premise is that all diseases can be cured.”
—Susan Sontag (b. 1933)
“His poor self,
A dedicated beggar to the air,
With his disease of all-shunned poverty,
Walks, like contempt, alone.”
—William Shakespeare (1564–1616)
“It is said, proverbially, that happy is the doctor who is called in when the disease is on its way out.”
—François Rabelais (1494–1553)
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