Publication: Chromaffinity, uranaffinity and argentaffinity of small granule-containing (SGC) cells in rat superior cervical ganglia
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Date
1992
Authors
Kuo-Shyan Lu ; Yat-Pang Chau
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
A systemic examination on the small
granule-containing (SGC) cells in rat superior cervical
ganglia was conducted by conventional and
cytochemical electron microscopy including chromaffin,
argentaffin and uranaffin reactions. According to the
fine structure of dense cored vesicles (DCVs) in the
cytoplasm, three types of small granule-containing
(SGC) cells were revealed - Type 1: 90 - 160 nm
vesicles with cores of moderate or low electron density;
Type 11: 130 - 330 nm vesicles, polymorphic with highly
electron dense cores; Type 111: elongated vesicles (170
nm x 60 nm) with cores of moderate to low electron
density. The majority of SGC cells were the Type 1 cells
(78%) and Type 11 and 111 cells made up 13% and 9% of
SGC cell population, respectively. Cytochemical results
demonstrated that only the Type 11 cells displayed a
positive chromaffin reaction and al1 three types of SGC
cells showed argentaffinity and uranaffinity. The present
study is the first to demonstrate the argentaffin reaction
at ultrastructural level in SGC cells of sympathetic
ganglia. Based on the results of the present study we
also concluded that (1) the DCVs of Type 11 SGC cells
contained noradrenaline and (2) biogenic amines and
nucleotides (ATPs) coexisted in the DCVs of al1 three
types of SGC cells.
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