ISSN:
1432-0878
Keywords:
Median eminence
;
Agranular and granular vesicles
;
Horseradish peroxidase
;
Micro-pinocytosis
;
Ultrastructure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Nerve profiles in the basal part of the palisade zone of rat median eminence have been divided into 4 categories on the basis of their vesicular content: profiles a with agranular vesicles of about 50 nm, b with similar agranular vesicles and also with granular vesicles of mainly 70–140 nm, c with granular vesicles alone and d without vesicles. After intravenous injection of exogenous peroxidase, castrated male rats showed, in comparison to sham-operated controls, a 3–5 fold increase in the percentage of nerve profiles of category a which contained peroxidase loaded vesicles of about 50 nm. In contrast, no significant change was observed for nerve profiles of other categories. It is concluded that exogenous peroxidase may be used to demonstrate changes in the activity of tuberoinfundibular nerve terminals at the ultrastructural level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00220280
