Linked Life Data

1972847

Source:http://linkedlifedata.com/resource/pubmed/id/1972847

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-7-31
pubmed:abstractText
To assess whether elicitation of delayed hypersensitivity may be superior to trauma in inducing the Koebner reaction in psoriasis, 12 affected patients and 9 control subjects were tested with 0.1 ml intradermal injections of streptokinase/streptodornase (20 mu/5 mu per 0.1 ml), PPD (1 in 1000) and saline control solutions in a double-blind study; Koebner status was also established in the psoriatic patients. Injected sites were examined at 48 h and 7, 14, 21 and 28 days for local development of psoriasis, erythema and induration (diameter). One patient was Koebner-positive and developed psoriasis at all three injection sites. The other, Koebner-negative psoriatic subjects did not develop psoriasis locally. However, compared with non-psoriatic controls they showed a marked delay in resolution of the delayed hypersensitivity reaction to the PPD antigen and a similar but less marked phenomenon was observed for streptokinase/streptodornase. These findings indicate that intradermal antigen, of the nature and amount used in this study, is no more effective in inducing the Koebner phenomenon than injury alone. However, the ability of psoriasis patients to switch off cell-mediated immune reaction appears to be impaired.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0001-5555
pubmed:author
pubmed:issnType
Print
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
262-4
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Intradermal antigen tests in psoriasis.
pubmed:affiliation
Department of Dermatology, St. Mary's Hospital, London, England.
pubmed:publicationType
Journal Article, Clinical Trial, Controlled Clinical Trial