Abstract |
Previous studies have shown that 16% of patients with psoriasis vulgaris have IgA and/or IgG antibodies to gliadin, but few have antibodies to endomysium. The increase in duodenal intraepithelial lymphocytes was mild. Still, highly significant clinical improvement was observed after 3 months on a gluten-free diet. This study surveys certain immunohistological aspects of involved and non-involved skin in 28 AGA-positive psoriasis patients before and after 3 months of a gluten-free diet. Staining was performed for CD4+ T lymphocytes, Langerhans' cells, endothelium, proliferating (Ki67) cells and tissue transglutaminase. In the entire group of patients, as well as in those on a gluten-free diet as the only treatment, Ki67 + cells in involved dermis were highly significantly decreased after the diet. There was a significant decrease in Ki67 + cells even in patients without increased intraepithelial lymphocytes. Tissue transglutaminase was highly overexpressed in involved skin in the papillary endothelium, and decreased by 50% after gluten-free diet. The possible role of tissue transglutaminase in the pathogenesis of psoriasis needs further investigation.
|
Authors | Gerd Michaëlsson, Stina Ahs, Ingrid Hammarström, Inger Pihl Lundin, Eva Hagforsen |
Journal | Acta dermato-venereologica
(Acta Derm Venereol)
Vol. 83
Issue 6
Pg. 425-9
( 2003)
ISSN: 0001-5555 [Print] Sweden |
PMID | 14690336
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
|
Chemical References |
- Antibodies, Anti-Idiotypic
- Immunoglobulin A
- Immunoglobulin G
- Ki-67 Antigen
- Glutens
- Gliadin
- Transglutaminases
|
Topics |
- Adolescent
- Adult
- Aged
- Antibodies, Anti-Idiotypic
(analysis, immunology)
- Biopsy, Needle
- Case-Control Studies
- Cells, Cultured
- Epidermal Cells
- Epidermis
(physiology)
- Female
- Gliadin
(immunology, metabolism)
- Glutens
- Humans
- Immunoglobulin A
(analysis, immunology)
- Immunoglobulin G
(analysis, immunology)
- Immunohistochemistry
- Ki-67 Antigen
(analysis, immunology)
- Male
- Middle Aged
- Probability
- Psoriasis
(diet therapy, immunology, pathology)
- Sensitivity and Specificity
- Severity of Illness Index
- Statistics, Nonparametric
- Transglutaminases
(analysis, metabolism)
|