The Gallbladder of Uranoscopus Scaber L. (Teleost Perciform Fish) is Lined by Specialized Cholecystocytes

Gilloteaux, Jacques, Ott, Donald and Oldham-Ott, Carla (2011) The Gallbladder of Uranoscopus Scaber L. (Teleost Perciform Fish) is Lined by Specialized Cholecystocytes. The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology, 294 (11). pp. 1890-1903. ISSN 19328486

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Abstract

The gallbladder of Uranoscopus exhibits a mucosal surface layer of simple columnar epithelium composed of specialized cholecystocytes. The apices show storage and mucous secretions, typical microvilli, and very apical projections extending deep into the luminal contents. Many organelles and heterogeneous vesicles of diverse size fill the cytoplasm, including neutral mucins, mitochondria, peroxisomes, lysosomal bodies, and lipid-rich deposits with cholesterol inclusions. The fibromuscular layer shows little blood supply and contains scattered lymph-like walls with minute cholesterol inclusions. The remaining muscular, subserosal, and serosal or adventitial layers of this species do not show any histologic differences to those of other Vertebrates. It was unexpected to find cholesterol inclusions in the fatty deposits of the cholecystocytes, similar to those noted in human cholesterolosis and in some forms of hypercholesterolemia, in this teleostean. In addition, aggregations of mitochondria and anomalous mitochondrial morphologies were found that resemble oncocytoma-like changes.

Item Type:	Article
Uncontrolled Keywords:	gallbladder, cholesterol, lysosomes, mucin, Uranoscopus, fish
Subjects:	B100 Anatomy, Physiology and Pathology
Department:	Faculties > Health and Life Sciences > Applied Sciences
Depositing User:	Becky Skoyles
Date Deposited:	21 Oct 2013 09:49
Last Modified:	12 Oct 2019 18:26
URI:	http://nrl.northumbria.ac.uk/id/eprint/14105

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