Document Type

Article

Publication Version

Published Version

Publication Date

2006

Journal or Book Title

Developmental and Comparative Immunology

Volume

30

Issue

9

First Page

817

Last Page

830

DOI

10.1016/j.dci.2005.11.004

Abstract

Stimulatory effects of yeast b-1,3–1,6-glucans on neutrophils have long been recognized, but effects of glucans on degranulation of primary granules in fish neutrophils have not been previously reported. Neutrophil function was monitored during in vitro and in vivo application of glucans to non- (NS), acute- (AS) and chronically stressed (CS) fish. b-Glucan proved to be a strong and quick (80%, 2 min) stimulant of degranulation. Dietary glucan increased degranulation in NS fish, and prevented a decrease in AS fish. Degranulation in CS fish returned to NS levels 3 days after the glucan diet was fed. Fathead minnows appear to be a useful model to investigate neutrophil degranulation in fish exposed to different environmental conditions and immunomodulators. Use of b-glucans in fish diets prior to AS and during chronic stress can enhance neutrophil function, potentially increasing disease resistance and survival rates after transportation or exposure to poor water quality.

Comments

This article is from Developmental and Comparative Immunology 30 (2005): 817, doi:10.1016/j.dci.2005.11.004.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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