Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.1.3.16 (calcineurin)
 17,112 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Using antibodies to calcineurin (CaN) and choline acetyltransferase (ChAT), we performed topographical and cellular immunohistochemical analysis on the posterior putamen of autopsied patients with multiple system atrophy with predominant parkinsonism (MSA-P). We document that in these patients, medium spiny neurons positive for CaN were severely depleted in the dorsolateral portion of the posterior putamen where ChAT-positive neurons are normally distributed. Our findings indicate that in patients with MSA-P, striatal neurons manifest a cell type-specific vulnerability to neurodegeneration.
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PMID:Cell type-specific neuronal loss in the putamen of patients with multiple system atrophy. 1726 45

Topographical or compartmental involvement of the putamen and caudate nucleus has not been fully elucidated in multiple system atrophy predominantly presenting with Parkinsonism (MSA-P). We carried out immunohistochemical studies using antibodies to calbindin (CALB) and calcineurin (CaN) as neurochemical markers for striatal medium spiny neurons. We found that in the caudal and dorsolateral putamen, the area most affected in MSA-P, the medium spiny neurons positive for CALB were severely depleted, while CaN-positive neurons were relatively spared in a mosaic pattern. In the dorsal caudate nucleus, an area less affected in MSA, residual CALB-positive neurons exhibited a compartmentalized distribution that corresponded with the striosomal arrangement visualized by Met-enkephalin immunostaining. Our findings suggest that there is a compartmental difference in the susceptibility of striatal medium spiny neurons to neurodegeneration in MSA-P.
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PMID:Compartmental loss of striatal medium spiny neurons in multiple system atrophy of parkinsonian type. 1789 36