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Table of Contents
Vol. 153, No. 2, 1995
Issue release date: 1995
Section title: Original Paper
Acta Anatomica 1995;153:135–144
(DOI:10.1159/000313647)

Investigation of the Blood-Ganglion Barrier Properties in Rat Sympathetic Ganglia by Using Lanthanum Ion and Horseradish Peroxidase as Tracers

Chau Y.P.a · Lu K.S.b
aInstitute of Anatomy, School of Life Science, National Yang-Ming University, and bDepartment of Anatomy, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: January 24, 1994
Accepted: May 19, 1995
Published online: April 16, 2010
Issue release date: 1995

Number of Print Pages: 10
Number of Figures: 0
Number of Tables: 0

ISSN: 1422-6405 (Print)
eISSN: 1422-6421 (Online)

For additional information: http://www.karger.com/CTO

Abstract

Vascular permeability in various rat sympathetic ganglia, including superior cervical ganglia, thoracic ganglia and the celiac-mesenteric ganglia (CMG) complex, was investigated by using lanthanum and horseradish peroxidase (HRP) as tracers with special attention to the neuronal and small granule-containing (SGC) cell area. After lanthanum perfusion, lanthanum tracer was present within the lumen of blood vessels. No lanthanum depositions were found in the extra-vascular space surrounding neurons in the superior cervical and thoracic ganglia. By contrast, an accumulation of lanthanum was observed in both luminal, abluminal and subendothelial surface of blood vessels in neuronal and SGC cell areas of the CMG complex and surrounding SGC cells in superior cervical ganglia. Injecting HRP revealed that all blood vessels of various sympathetic ganglia, either in neuronal or in SGC cell areas, were impermeable to HRP. HRP reaction product was limited to the vascular lumen and macrophages. The escape of HRP was obstructed by the junctional complex at intercellular clefts of endothelia and also by the diaphragms of the fenestrated capillaries associated with SGC cells. We conclude that there are different properties in the blood-ganglion barriers among rat sympathetic ganglia: (1) continuous capillaries in superior cervical ganglia and thoracic ganglia provide an efficient blood-ganglion barrier that prevents the penetration of tracers, and (2) capillaries in the CMG complex and in regions of the superior cervical ganglia that contain SGC cells possess a selective blood-ganglion barrier that discriminates between tracers based on their molecular sizes.

© 1995 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: January 24, 1994
Accepted: May 19, 1995
Published online: April 16, 2010
Issue release date: 1995

Number of Print Pages: 10
Number of Figures: 0
Number of Tables: 0

ISSN: 1422-6405 (Print)
eISSN: 1422-6421 (Online)

For additional information: http://www.karger.com/CTO


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Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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