Subcellular changes in the endolymphatic sac after administration of hyperosmolar substances.

Abstract:

:The effects of hyperosmolar substances on the ultrastructure of the endolymphatic sac were studied in mice. Fifteen minutes after intravenous injection of urea or glycerol, subcellular changes in the endolymphatic sac were observed. These consisted of the occurrence of abundant cytoplasmic granules with a floccular or lamellar material, or both, in the light epithelial cells. Similar material was also present in the lumen of the endolymphatic sac, suggesting a common source and increased secretory activity. Mannitol caused similar changes, though less pronounced. The possibility that the alterations in the fine structure of the endolymphatic sac may be associated with a reduction in the hydrostatic fluid pressure in the rest of the labyrinth is discussed.

journal_name

Hear Res

journal_title

Hearing research

authors

Erwall C,Jansson B,Friberg U,Rask-Andersen H

doi

10.1016/0378-5955(88)90045-7

subject

Has Abstract

pub_date

1988-09-01 00:00:00

pages

109-18

issue

1

eissn

0378-5955

issn

1878-5891

pii

0378-5955(88)90045-7

journal_volume

35

pub_type

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