Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-5-24
pubmed:abstractText
This histological and immunohistochemical study of 6 food handlers affected by immediate contact dermatitis due to foods shows that apparently normal skin of patients with this condition presents several histological and immunohistochemical abnormalities. Skin biopsies of normal hand skin showed focal parakeratosis and moderately dense dermal infiltrates. Immunohistochemistry showed an increased number of Langerhans cells in the epidermis and in the superficial dermis and a mononuclear dermal infiltrate consisting of peripheral T lymphocytes with a CD4/CD8 ratio of 5-6/1. Biopsies of the immediate vesicular reactions induced by foods showed spongiotic vesicles within the epidermis and a moderate to dense mononuclear dermal perivascular infiltrate. The immunohistochemical features were similar to those described in apparently normal skin. The mechanism of this immediate vesicular reaction requires further research. The rapid appearance of the lesions (after 20-30 min) probably excludes an immunological cell-mediated pathogenesis. A non-immunological mechanism due to direct liberation of mediators by foods is more readily conceivable than an immediate immunological type of contact reaction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0105-1873
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
81-5
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Morphological and immunohistochemical study of immediate contact dermatitis of the hands due to foods.
pubmed:affiliation
Department of Dermatology, University of Bologna, Italy.
pubmed:publicationType
Journal Article