Results 81 to 90 of about 223,968 (292)

Genetic and serological heterogeneity of the supertypic HLA-B locus specificities Bw4 and Bw6 [PDF]

open access: yes, 1989
Gene cloning and sequencing of the HLA-B locus split antigens B38 (B16.1) and B39 (B16.2) allowed localization of their subtypic as well as their public specificities HLA-Bw4 or -Bw6 to the c~-helical region of the c~ 1 domain flanked by the amino acid ...
Engler-Blum, G.   +5 more
core   +1 more source

Clinical features of HLA-B27-positive acute anterior uveitis with or without ankylosing spondylitis in a Chinese cohort

open access: yesBritish Journal of Ophthalmology, 2017
Aims To characterise the clinical features of human leucocyte antigen (HLA)-B27+acute anterior uveitis (AAU) patients with or without ankylosing spondylitis (AS) and investigate the retinal vascular involvement in these patients.
Peizeng Yang   +8 more
semanticscholar   +1 more source

Measuring the Impact: MRI Response of Sacroiliac Joints to TNF Inhibitors in Youth with Axial Disease

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To evaluate the timeline for resolution of sacroiliac joint (SIJ) inflammation, changes in structural lesions, and their correlation with patient‐reported outcomes in youth with axial juvenile spondyloarthritis (axJSpA) initiating TNF inhibitor (TNFi).
Timothy G. Brandon   +8 more
wiley   +1 more source

Association of ERAP2 polymorphisms in Colombian HLA-B27+ or HLA-B15+ patients with SpA and its relationship with clinical presentation: axial or peripheral predominance

open access: yesRMD Open, 2020
Objective To determine the association between endoplasmic reticulum aminopeptidase (ERAP)1 and ERAP2 single-nucleotide polymorphisms (SNPs) and human leukocyte antigens (HLA)-B27+ or HLA-B15+ patients with spondyloarthritis (SpA).Methods 104 patients ...
Ruben Burgos-Vargas   +16 more
doaj   +1 more source

Seronegative spondyloarthropathies : a review : part II: genetics and pathogenesis [PDF]

open access: yes, 1993
In none of the spondyloarthropathies is the pathogenesis well understood. Much of the investigation into the aetio-pathogenesis of these diseases has focused on the association with HLA-B27 and the known triggering potential of certain infectious agents.
Borg, Andrew A.   +2 more
core  

Dominant role of the ERAP1 polymorphism R528K in shaping the HLA-B27 peptidome through differential processing determined by multiple peptide residues [PDF]

open access: yes, 2016
Copyright © 2015 by the American College of Rheumatology. Objective To characterize the alterations, as well as their mechanisms, induced in the HLA-B27-bound peptidome expressed in live cells by the natural ERAP1 polymorphisms predisposing to ankylosing
Akram   +35 more
core   +1 more source

Homozygosity For HLA‐B27 [PDF]

open access: yesArthritis & Rheumatism, 1977
AbstractThe effect of homozygosity for HLA‐B27 on the clinical expression of rheumatic disease was studied in two families. The 1 homozygous patient in each of two families demonstrated extraordinarily severe peripheral and axial arthritis compared to other affected heterozygous relatives.
Frank C. Arnett   +4 more
openaire   +1 more source

Mydriasis as a Secondary Effect in Patients With HLA‐B27–Associated Uveitis

open access: yesMedicine Advances, EarlyView.
HLA‐B27‐associated acute anterior uveitis causes significant inflammation of the iris and anterior chamber, which disrupts normal parasympathetic control and results in increased sympathetic tone leading to pupil dilation (mydriasis). This finding can sometimes resemble herpetic uveitis, making a clinical context and careful evaluation crucial for ...
Saim Mahmood Khan   +6 more
wiley   +1 more source

CHOP-mediated IL-23 overexpression does not drive colitis in experimental spondyloarthritis

open access: yesScientific Reports
HLA-B27 is a major risk factor for spondyloarthritis (SpA), yet the underlying mechanisms remain unclear. HLA-B27 misfolding-induced IL-23, which is mediated by endoplasmic reticulum (ER) stress has been hypothesized to drive SpA pathogenesis. Expression
Fatemeh Navid   +11 more
doaj   +1 more source

Brain Pericytes and Wnt/β‐Catenin Signaling Induce Functional Blood–Brain Barrier Phenotype in Human iPSC‐Derived Model

open access: yesSmall Methods, EarlyView.
This study shows that human iPSC‐derived endothelial cells acquire a functional blood–brain barrier phenotype when co‐cultured with brain pericytes and stimulated with CHIR‐99021, a Wnt/β‐catenin activator. This model recapitulates key barrier properties, inflammatory responses, and transcriptomic features of the native human BBB, offering new ...
Henrique Nogueira Pinto   +12 more
wiley   +1 more source

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