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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-2-16
pubmed:abstractText
Zinc is a trace element that plays a central role in the immune system. In the present study, the effect of zinc on the phagocytic capacity of canine peripheral blood phagocytes was examined in vitro by flow cytometry. Zinc was used at a concentration of 100 microM, which preserved cell viability. Treatment with zinc did not directly affect the phagocytic capacity of peripheral blood polymorphonuclear neutrophils (PMN) and mononuclear cells (PBMC). However, it did directly enhance the phagocytic capacity of peripheral blood monocyte-rich cells. Moreover, the phagocytic capacity of PMN and monocyte-rich cells but not PBMC was remarkably enhanced by culture supernatants from PBMC but not PMN treated with zinc. Anti-recombinant canine (rc) tumor necrosis factor-alpha (TNF-alpha) polyclonal antibody (pAb) neutralized the enhancing effect of the culture supernatant from zinc-treated PBMC and this supernatant had higher TNF-alpha levels than the culture supernatant of untreated PBMC. Thus, zinc may stimulate canine PBMC to produce TNF-alpha, which enhances the phagocytic capacity of canine peripheral blood phagocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0165-7380
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
251-61
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Zinc increases the phagocytic capacity of canine peripheral blood phagocytes in vitro.
pubmed:affiliation
Laboratory of Veterinary Internal Medicine, Department of Veterinary Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea.
pubmed:publicationType
Journal Article