Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P01889 (ankylosing spondylitis)
 5,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The distinction between rheumatoid arthritis (RA) and ankylosing spondylitis (AS) has hitherto relied on supporting evidence of characteristic radiological changes in the sacroiliac joints, together with the Rose-Waaler and Latex tests for rheumatoid factor (RF). This distinction has remained incomplete since some 30 per cent of patients with RA may have sacroiliitis, a similar proportion having negative routine tests for RF. The identification of the HLA B27 antigen, present in 90 per cent of cases of AS and six per cent of the normal population, has enabled a number of cases to be recognized in which both diseases appear to co-exist. Ten cases are described in which either RA appears to have developed in patients with AS, or AS in patients with RA. They all fulfil the ARA diagnostic criteria for classical RA, and the criteria for classical AS. The likelihood of these two diseases occurring by chance in an individual might be of the order of 1:50,000 to 1:200,000.
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PMID:Coexistence of rheumatoid arthritis and ankylosing spondylitis--report of 10 cases. 26 3

68 cases with polyarthritis were selected from 406 HLA B 27 positive patients with various rheumatic diseases excluding ankylosing spondylitis (AS) or Reiter's disease. 23 fulfilled at least 5 criteria of the ARA for the diagnosis of rheumatoid arthritis (RA). 5 suffered from polyarthritis and psoriasis. The remaining 40 patients expressed an asymmetric oligarthritis especially of the lower limbs (knee, ankle) affecting predominantly young adult men. Sacroiliitis was observed in 10 cases. Joint erosions, rheumatoid factors and visceral manifestations were uncommon. The arthritic pattern of B 27 positive oligarthritis differed clearly from rheumatoid arthritis (n = 34) and psoriatic arthritis (n = 15), but was similar to peripheral joint involvement in AS (n = 32) except for the higher incidence of coxitis in AS. HLA typing is helpful not only in the early diagnosis of AS but also in the differential diagnosis of unclassifiable polyarthritis.
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PMID:HLA-B27-positive oligarthritis. 31 Jun 5

We carried out a prospective study of the clinical, laboratory and radiological features of 180 patients with psoriatic arthritis. We initially classified our patients into five groups as described in the publications of Moll and Wright. Thirty-seven per cent had oligoarthritis, 36% polyarthritis, 23% spondarthritis (sacroiliitis and/or spondylitis) and 4% had the mutilans form. The distal joint arthritis type did not exist as an entity and the distal interphalangeal (DIP) joints were affected in all groups. The spondarthritis form includes patients with exclusively axial manifestations and also those who in addition have peripheral arthritis (oligoarthritis, polyarthritis, DIP arthritis). Only 53% of our patients had nail involvement. We found an increase of IgA levels in patients with axial disease. This suggests a relationship between ankylosing spondylitis and psoriatic spondylitis. The HLA-B17/Cw6 association increased in the oligoarticular form. The increase of antigen B17 correlated with the spondarthritic and oligoarthritis forms whereas Cw6 was more important in the oligoarthritis form. An increase of the HLA-B27/Cw1 association and the spondarthritic form was also found. Moreover, we detected a greater incidence of the HLA-B27 antigen in patients with bilateral sacroiliitis (85%) than in patients with unilateral sacroiliitis (22%). Our work revealed that PA is not a harmless disease; 57% of our patients had erosive arthritis while 19% had ARA class III or IV functional impairment.
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PMID:Psoriatic arthritis (PA): a clinical, immunological and radiological study of 180 patients. 154 Jul 94

The serum biochemistry of 31 patients with ankylosing spondylitis (AS) was compared with that of 80 patients with rheumatoid arthritis (RA) (ARA criteria), 30 of whom were negative for circulating rheumatoid factor and 50 of whom were 'seropositive'. All patients were selected because of moderate to severe disease activity. All 3 groups had distinctive biochemical profiles. Total serum sulphydryl and haemoglobin were particularly good discriminators between AS and RA, IgG, IgA, and acute-phase reactants complemented the sheep cell agglutination test in discriminating between seropositive RA and seronegative RA. In active AS a normal erythrocyte sedimentation rate was often seen in the presence of abnormal C-reactive protein (CRP) and plasma viscosity.
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PMID:A comparison of serum biochemistry in ankylosing spondylitis, seronegative and seropositive rheumatoid arthritis. 725 32

Despite many reports on the association between ankylosing spondylitis and HLA-B27, most studies have failed to find a significant relationship between HLA-A or B antigen and rheumatoid arthritis. Stastny, however, showed a significantly high frequency of HLA-Dw4 in rheumatoid arthritis in 1976. The study of HLA antigens in Japanese patients with rheumatoid arthritis are thought to be significant in view of the pathogenesis of disease. Eighty-eight Japanese patients with "definite" or " classical" rheumatoid arthritis according to the ARA criteria and 104 normal individuals were typed for serologically detectable HLA-A, B, C, and D antigens. Though small discrepancies were observed in several of the HLA-A, B, and C, antigens, they were not definitely significant. The frequency of HLA-DR4 increased to 70.5% in patients compared to 46.1% in the control (i.e. normal) group (p less than 0.001). However, the frequency increased to 80.6% in male patients (p less than 0.0005). Of interest was the significantly high frequency of HLA-DR4 in males, compared to the low frequency of HLA-DR2 (p less than 0.02). Rheumatoid patients were subdivided into different groups according to the year of onset, the presence of the the rheumatoid factor or rheumatoid nodules, the functional grade and treatment. There were no significant differences in the frequency of HLA-DR4 among subgroups. The results indicate that rheumatoid arthritis, especially in males, is associated with genes of the HLA-D region and that immunogenetic factors linked to HLA have an important role in its pathogenesis.
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PMID:[[HLA in rheumatoid arthritis (author's transl)]. 728 33

This study describes the profile of ankylosing spondylitis as seen at the King Khalid University Hospital, Riyadh, Saudi Arabia over a period of 4 years. Fifteen cases were accumulated, eleven males and four females (M:F ratio 2.75:1). Thirteen patients were of Arab origin. The mean age of onset was 23.4 years, and all patients but one had a subacute onset. A positive family history was elicited in two patients (13%) and HLA B27 was positive in eight out of twelve patients (67%). Symmetrical radiographic sacroiilitis was present in all fifteen patients, radiographic spondylitis in eleven (73%), enthesitis in nine (60%) while peripheral joints were affected in five (33%). Conjunctivitis and uveitis were seen in 2 (13%) and 1 (7%) respectively. Most patients were in ARA functional Class I and II.
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PMID:Profile of ankylosing spondylitis in Saudi Arabia. 879 62

It is traditionally held that human IgG4 MoAbs should not deplete target cells in vivo, as this isotype is inactive in a number of in vitro assays that measure effector function. We have previously challenged this dogma, and the current study was designed to investigate the in vivo biological effects in humans of a MoAb of human IgG4 isotype. Nine patients with refractory rheumatoid arthritis (RA) fulfilling ARA criteria, and one with ankylosing spondylitis (AS) received a human IgG4 Campath-1 MoAb (with specificity against the pan-lymphocyte antigen CD52) as part of a two-stage therapeutic protocol. In stage 1, patients received a single dose of this MoAb. Stage 2, starting 48 h later, comprised a 5-day course of a human IgG1 Campath-1 MoAb with identical V-region (CAMPATH-1H), as previously used in the management of RA patients. The intervening 48 h provided a window of opportunity to monitor the biological effects of the IgG4 MoAb for comparison with the IgG1. The two MoAbs were also compared for in vitro biological activity. IgG4 depleted peripheral blood lymphocytes (PBL), albeit less efficiently than IgG1. It produced a first-dose reaction of similar intensity, although associated circulating tumour necrosis factor-alpha (TNF-alpha) levels were lower. TNF-alpha release from whole blood in vitro was also greater with the IgG1 MoAb. The study design did not permit conclusions to be drawn regarding therapeutic efficacy of the IgG4 MoAb. In summary, a human IgG4 Campath-1 MoAb depletes target cells in vivo. Importantly, this study demonstrates for the first time in humans that in vitro assays may not predict the in vivo effector function of therapeutic MoAbs.
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PMID:A therapeutic human IgG4 monoclonal antibody that depletes target cells in humans. 897 8