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Thursday, October 09, 2008

Biondi ring tangles found in.

Question 16
Biondi ring tangles found in.
a.       Choroidal plexus cells
b.      Golgi type II cells
c.       Basket cells
d.      ??
a) Choroid Plexus
Reference, Discussion, Explanation:
Biondi bodies in the choroid plexus epithelium of the human brain
Springer Berlin / Heidelberg
0302-766X (Print) 1432-0878 (Online)
Short Communications
239-240. (1986;244(1):239-40)
Subject Collection
SpringerLink Date
Monday, November 29, 2004
A. I. Kiktenko1   Contact Information
All-Union Research Center of Mental Health, Academy of Medical Sciences of the USSR, Moscow, USSR
All-Union Research Center of Mental Health, Academy of Medical Sciences of the USSR, Zagorodnoje shosse 2, korp 2, 113152 Moscow, USSR
Accepted: 9 December 1985  
Summary  Scanning electron microscopy (SEM) was used to examine choroid plexuses in the brain of two human adults aged 44 and 46, respectively, and 12 older subjects from 67 to 98 years of age. It was possible to obtain a three-dimensional view of the ring-like structures (Biondi bodies) located in the cytoplasm of choroid plexus epithelial cells in the older-age group. The filaments forming the rings were clearly visible. No such structures were found between epithelial cells. The intracellular location of the Biondi bodies and their state of preservation compared to other cytoplasmic elements suggest that they may have a destructive effect on epithelial cells of choroid plexuses. The same material was examined by transmission electron microscopy (TEM); the results obtained were in full agreement with the evidence obtained with SEM.
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