Central chromatolysis

Central chromatolysis is a pathological condition that occurs in the cell body of a neuron, characterized by the dispersion of Nissl substance from the center to the periphery of the cell. This condition is often a response to axonal injury or other types of neuronal stress.

Causes

Central chromatolysis is typically caused by axonal injury, which can occur due to a variety of reasons, including trauma, neurodegenerative diseases, and neurotoxicity. Other potential causes include infection, inflammation, and ischemia.

Pathophysiology

The primary feature of central chromatolysis is the dispersion of Nissl substance, a type of rough endoplasmic reticulum found in neurons, from the center to the periphery of the cell. This is often accompanied by an increase in the size of the cell body and a shift in the position of the nucleus towards the periphery. These changes are thought to reflect an increase in protein synthesis in response to neuronal injury.

Symptoms

The symptoms of central chromatolysis can vary depending on the location and extent of the neuronal injury. They may include motor dysfunction, sensory disturbances, and cognitive impairment.

Diagnosis

Central chromatolysis is typically diagnosed based on histological examination of neuronal tissue, which can reveal the characteristic changes in the distribution of Nissl substance.

Treatment

Treatment for central chromatolysis primarily involves addressing the underlying cause of the neuronal injury. This may involve surgery, medication, or other forms of therapy.

See also

• Neuron
• Axon
• Nissl substance
• Neurodegenerative diseases

References

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