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perikaryon

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
perikaryon [¦per·ə′kar·ē‚än]
(cell and molecular biology)
A cytoplasmic mass surrounding a nucleus.
(neuroscience)
The body of a nerve cell, containing the nucleus.


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The blood supply parameters of the nervous centers provided they are nominally considered as isomorphous structures having the similar conditions of local blood circulation, do not allow establishing particular changes in the furnishment of separate components and cannot take into account the relationship between the neuropil and the neuronal perikaryon.
Because this biochemical change could represent either a larger perikaryon or more neuritic extensions, we also assessed membrane protein markers in both absolute (membrane protein concentration) and relative (membrane/total protein) terms; an increase in extensions would augment membrane protein proportionally more than total protein.
Beginning on day 5, however, neuronal degeneration was seen in many areas, manifested by shrinkage of the perikaryon with intense eosinophilia of the cytoplasm, central chromatolysis, and condensation of the nucleus.
 
 
 
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