| Vascular supply of the endolymphatic sac. A gross and ultrastructural study in the Mongolian gerbil under normal and experimental conditions. | |
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MedLine Citation:
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PMID: 1950535 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The vascular network of the gerbilline endolymphatic sac (ES) and its dynamics were studied using different morphological procedures. The normal condition was compared to serum osmotic alterations induced by changing the daily water intake of the animals. The gross morphology was studied after intracardiac injection of Berlin Blue, while light (LM) and transmission electron microscopy (TEM) were applied for the ultrastructural analysis. A rich vascular supply was seen in the intermediate portion of the normal ES, and the presence of micropores and fenestrations confirmed also in this animal species the importance of this region for fluid exchange. The lacunar arrangement of the vessels in the distal portion of the ES, together with the close vicinity of this area to the bone marrow, led to the hypothesis that the distal ES possesses a functional role as blood reservoir. The hyperosmotic condition induced by water deprivation appeared to affect mostly the morphology of the red cells. In some of the capillaries, a thrombus-like occlusion was also evident. This vascular occlusive condition appeared to be partly reversible when water intake was reestablished, although the morphological alterations induced by the hyperosmotic condition to the subepithelial tissue appeared not to be reversible. |
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Authors:
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M Barbara; M Hultcrantz |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Acta oto-laryngologica Volume: 111 ISSN: 0001-6489 ISO Abbreviation: Acta Otolaryngol. Publication Date: 1991 |
Date Detail:
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Created Date: 1991-12-05 Completed Date: 1991-12-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370354 Medline TA: Acta Otolaryngol Country: SWEDEN |
Other Details:
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Languages: eng Pagination: 728-37 Citation Subset: IM |
Affiliation:
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Department of Otolaryngology, University La Sapienza, Rome, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Capillaries / pathology, ultrastructure Endolymphatic Sac / anatomy & histology, blood supply*, ultrastructure Erythrocytes / pathology, physiology* Gerbillinae Microscopy, Electron Osmolar Concentration Water Deprivation / physiology* |
| Comments/Corrections | |
Comment In:
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Acta Otolaryngol. 1992;112(1):160
[PMID:
1575032
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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