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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-8-16
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pubmed:abstractText |
The effects of beta-carotene, retinol, and retinoic acid on function of mononuclear cells during the peripartum period was assessed in vitro. Blood was collected from 14 Holstein cows on wk -4, -1, 0, 1, and 4 postpartum, and mononuclear cells were obtained by gradient centrifugation. Mononuclear cell proliferation induced by concanavalin A was measured in the presence of beta-carotene, retinol (1 x 10(-9) and 1 x 10(-8) M), and retinoic acid (1 x 10(-10) and 1 x 10(-9) M). Retinol and beta-carotene had no effect on spontaneous cell proliferation, whereas retinoic acid was suppressive. However, 1 x 10(-9) M beta-carotene enhanced concanavalin A-induced proliferation at wk -1, whereas 1 x 10(-8) M beta-carotene was suppressive at wk -4. Retinoic acid suppressed concanavalin A-induced proliferation at wk 0, but retinol had no effect. These results suggest a mechanism by which beta-carotene affords the mammary gland protection against infection immediately prepartum.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0022-0302
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
74
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
911-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2071716-Animals,
pubmed-meshheading:2071716-Carotenoids,
pubmed-meshheading:2071716-Cattle,
pubmed-meshheading:2071716-Cells, Cultured,
pubmed-meshheading:2071716-Female,
pubmed-meshheading:2071716-Labor, Obstetric,
pubmed-meshheading:2071716-Leukocytes, Mononuclear,
pubmed-meshheading:2071716-Lymphocyte Activation,
pubmed-meshheading:2071716-Postpartum Period,
pubmed-meshheading:2071716-Pregnancy,
pubmed-meshheading:2071716-Pregnancy, Animal,
pubmed-meshheading:2071716-Tretinoin,
pubmed-meshheading:2071716-Vitamin A,
pubmed-meshheading:2071716-beta Carotene
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pubmed:year |
1991
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pubmed:articleTitle |
In vitro effects of beta-carotene and vitamin A on peripartum bovine peripheral blood mononuclear cell proliferation.
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pubmed:affiliation |
Department of Animal Sciences, Washington State University, Pullman 99164-6320.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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