Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1975-11-6
pubmed:abstractText
Until recently coccidioidin has been the only antigenic preparation available for detecting delayed dermal sensitivity induced by an experience with Coccidioides immitis. It is prepared from autolysates of the mycelial phase (saprophytic) of the fungus. A more sensitive reagent, spherulin, was developed in 1969 from the spherule phase (parasitic) of the organism. Use of spherulin showed that coccidioidin failed to detect approximately 30% of individuals specifically sensitive to C. immitis. However the potential of spherulin to detect cross-sensitivity induced by Histoplasma capsulatum was unknown. This information was considered to be germane because of the capacity of coccidioidin to detect a histoplasmal experience. Accordingly, both reagents as well as paracoccidioidin were compared simultaneously in 365 Columbian soldiers from areas endemic for histoplasmosis but not for coccidioidomycosis. At standard strength both preparations detected nonspecific responses in 0.8% to 3% of the histoplasmin negative and positive subgroups, respectively. At 10-times standard strength both preparations cross-detected histoplasmin sensitivity comparably; 5.1% to 7.1% of histoplasmin-positive subjects reacted with the coccidioidal antigens. No pattern of cross-reactivity was observed between paracoccidioidin sensitivity and sensitivity to the coccidioidal antigens.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0002-9262
pubmed:author
pubmed:issnType
Print
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
512-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Spherulin and coccidioidin: cross-reactions in dermal sensitivity to histoplasmin and paracoccidioidin.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S.