User profiles for Helgi Valdimarsson
Helgi ValdimarssonEmeritus Professor University of Iceland Verified email at landspitali.is Cited by 14635 |
Psoriasis: a T-cell-mediated autoimmune disease induced by streptococcal superantigens?
H Valdimarsson, BS Baker, I Jónsdóttir, A Powles… - Immunology today, 1995 - cell.com
… As discussed here b15 Helgi Valdimarsson and colleagues, cytokines scleased by the
superanti& (SAg)-stimulated T cells could induce or enhance the expression of the crossreactive …
superanti& (SAg)-stimulated T cells could induce or enhance the expression of the crossreactive …
[HTML][HTML] Mouse models of psoriasis
…, A Johnston, M Dyson, H Valdimarsson… - Journal of Investigative …, 2007 - Elsevier
Psoriasis is a T-cell-mediated chronic inflammatory skin disease believed to be of autoimmune
nature that can be triggered or worsened by streptococcal throat infections. In addition to …
nature that can be triggered or worsened by streptococcal throat infections. In addition to …
Psoriasis–as an autoimmune disease caused by molecular mimicry
H Valdimarsson, RH Thorleifsdottir… - Trends in …, 2009 - cell.com
Psoriasis is strongly associated with streptococcal throat infection, and patients have
increased occurrence of such infections. Psoriatic lesional T cells are oligoclonal, and T cells …
increased occurrence of such infections. Psoriatic lesional T cells are oligoclonal, and T cells …
[HTML][HTML] HLA-Cw6-positive and HLA-Cw6-negative patients with psoriasis vulgaris have distinct clinical features
JE Guðjónsson, H Valdimarsson, A Kárason… - Journal of Investigative …, 2002 - Elsevier
Psoriasis is associated with HLA-Cw6, and Caucasians who carry this allele have about a
10-fold increased risk of developing psoriasis. We have HLA-C typed 369 patients with …
10-fold increased risk of developing psoriasis. We have HLA-C typed 369 patients with …
The anti-inflammatory action of methotrexate is not mediated by lymphocyte apoptosis, but by the suppression of activation and adhesion molecules
…, H Sigmundsdottir, BR Ludviksson, H Valdimarsson - Clinical …, 2005 - Elsevier
Low-dose methotrexate (MTX) is an established and highly effective treatment for severe
psoriasis and rheumatoid arthritis; however, its mechanism of action remains unclear. We …
psoriasis and rheumatoid arthritis; however, its mechanism of action remains unclear. We …
[HTML][HTML] Distinct clinical differences between HLA-Cw* 0602 positive and negative psoriasis patients–an analysis of 1019 HLA-C-and HLA-B-typed patients
…, J Gulcher, K Stefansson, H Valdimarsson - Journal of Investigative …, 2006 - Elsevier
A major susceptibility gene for psoriasis is located in the major histocompatibility complex
class I region on chromosome 6 very close to the HLA-Cw6 gene. We collected a cohort of …
class I region on chromosome 6 very close to the HLA-Cw6 gene. We collected a cohort of …
Epidermal T lymphocytes and HLA‐DR expression in psoriasis
…, AF Swain, L Fry, H Valdimarsson - British Journal of …, 1984 - academic.oup.com
Double staining immunofluorescent techniques and monoclonal antibodies were used to
study the numbers, distribution, HLA‐DR expression and relationship of T‐cell subpopulations …
study the numbers, distribution, HLA‐DR expression and relationship of T‐cell subpopulations …
Low serum mannose-binding lectin level increases the risk of death due to pneumococcal infection
…, YL Lau, A Payeras, H Valdimarsson… - Clinical infectious …, 2008 - academic.oup.com
Background. Previous studies have shown associations between low mannose-binding lectin
(MBL) level or variant MBL2 genotype and sepsis susceptibility. However, MBL deficiency …
(MBL) level or variant MBL2 genotype and sepsis susceptibility. However, MBL deficiency …
[PDF][PDF] A susceptibility gene for psoriatic arthritis maps to chromosome 16q: evidence for imprinting
…, A Kong, K Stefansson, H Valdimarsson… - The American Journal of …, 2003 - cell.com
Several genetic loci have been reported for psoriasis, but none has been specifically linked
to psoriatic arthritis (PsA), a condition that affects >10% of patients with psoriasis. A genetic …
to psoriatic arthritis (PsA), a condition that affects >10% of patients with psoriasis. A genetic …
Narrowband–UVB irradiation decreases the production of pro-inflammatory cytokines by stimulated T cells
Narrow-band ultraviolet B (UVB) phototherapy is an effective treatment for psoriasis. Owing
to its limited penetration, the direct effects of UVB are mostly restricted to cells residing in the …
to its limited penetration, the direct effects of UVB are mostly restricted to cells residing in the …