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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1989-3-23
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pubmed:abstractText |
The lymphocytes in the perivascular foci of tuberculin skin tests have a similar CD4:CD8 ratio to those in the peripheral blood, suggesting that these subsets do not show bias in their initial emigration. By contrast, the diffusely infiltrating lymphocytes show a relative preponderance of CD4 cells which is progressively greater in successive 250 micron layers into the dermis. A generally similar pattern is seen in healthy controls and in patients with untreated pulmonary tuberculosis, treated leprosy, haemophilia A and chronic obstructive lung disease (COLD) patients treated with prednisolone, but the gradient of increasing CD4:CD8 ratio with depth into the dermis is significantly less steep in patients with tuberculosis, haemophilia and prednisolone-treated COLD than in the healthy controls. Selective migration results in a relative preponderance of CD4 cells in the diffuse infiltrate and it is suggested that this is a mechanism likely to potentiate defensive reaction to Mycobacterium tuberculosis: any deficiency in selective migration may make immunological defences less effective and so contribute to the chronicity of the lesions of tuberculosis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0007-1021
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
69
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
771-80
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3265334-Cell Movement,
pubmed-meshheading:3265334-Hemophilia A,
pubmed-meshheading:3265334-Humans,
pubmed-meshheading:3265334-Hypersensitivity, Delayed,
pubmed-meshheading:3265334-Leprosy,
pubmed-meshheading:3265334-Lung Diseases, Obstructive,
pubmed-meshheading:3265334-Skin,
pubmed-meshheading:3265334-T-Lymphocytes,
pubmed-meshheading:3265334-Tuberculin Test,
pubmed-meshheading:3265334-Tuberculosis, Pulmonary
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pubmed:year |
1988
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pubmed:articleTitle |
Diversity in migration of CD4 and CD8 lymphocytes in different microanatomical compartments of the skin in the tuberculin reaction in man.
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pubmed:affiliation |
Department of Pathology, University of Dundee, UK.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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